tag:blogger.com,1999:blog-83826660312617573602024-03-08T12:39:23.899-08:00crematogaster scutellaris :: fourmi du sud de la FranceLes crematogaster scutellaris sont des fourmis de la région méditerranéenne. Descriptions, observations in natura avec photos .LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.comBlogger33125tag:blogger.com,1999:blog-8382666031261757360.post-24647923953234329052017-08-25T00:46:00.001-07:002017-08-25T00:57:14.455-07:00vue en 360°<div dir="ltr" style="text-align: left;" trbidi="on">
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Vue en 360° d'une ouvrière <b><i>Crematogaster scutellaris</i></b>. On peut faire tourner avec la souris, les doigts pour écran tactile ou la barre en dessous !<br />
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<iframe height="450" src="http://video.fourmis.free.fr/360/crematogaster-scutellaris/Crematogaster%20scutellaris.html" width="650"></iframe>
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-20752500389652044812015-06-14T02:17:00.004-07:002015-06-14T02:17:53.057-07:00 coloration improbable<div dir="ltr" style="text-align: left;" trbidi="on">
Il est usuel de décrire en taxonomie pour <i>Crematogaster scutellaris</i> qu'elles ont la tête rouge.<br />
Eh non, parfois la tête est noire. Sur des ouvrières isolées, certes.<br />
Un exemple :<br />
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-5929717769688605982015-06-14T02:14:00.002-07:002015-06-14T02:14:52.004-07:00Repas : alimentation variée<div dir="ltr" style="text-align: left;" trbidi="on">
<i>Crematogaster scutellaris</i> varie son alimentation par opportunisme.<br />
Un classique : le miellat des pucerons. <br />
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Mais également les excréments d'oiseaux, des fientes :<br />
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-69268594228754308392014-10-03T01:47:00.002-07:002014-11-03T03:42:24.854-08:00essaimage Crematogaster scutellaris<div dir="ltr" style="text-align: left;" trbidi="on">
Reparti pour 2014, essaimage en soirée à nuit tombante de Crematogaster scutellaris<br />
<iframe allowfullscreen="" frameborder="0" height="375" mozallowfullscreen="" src="//player.vimeo.com/video/107896291" webkitallowfullscreen="" width="500"></iframe> <br />
<a href="http://vimeo.com/107896291">essaimage Crematogaster scutellaris</a> from <a href="http://vimeo.com/antarea">FOURMIS TV</a> on <a href="https://vimeo.com/">Vimeo</a>.<br />
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-67450477300893000422014-07-01T11:16:00.004-07:002014-07-01T11:18:21.541-07:00transport de larves et du couvain<div dir="ltr" style="text-align: left;" trbidi="on">
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Directement du producteur au consommateur !<br />
Les ouvrières apportent le couvain sur des figues de Saint Jean juteuses.<br />
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<iframe allowfullscreen="" frameborder="0" height="375" mozallowfullscreen="" src="//player.vimeo.com/video/99654596" webkitallowfullscreen="" width="500"></iframe> <br />
<a href="http://vimeo.com/99654596">Procession Crematogaster scutellaris</a> from <a href="http://vimeo.com/antarea">FOURMIS TV</a> on <a href="https://vimeo.com/">Vimeo</a>.<br />
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-3943856371349537122014-04-17T10:23:00.000-07:002014-06-27T10:27:13.519-07:00<div dir="ltr" style="text-align: left;" trbidi="on">
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<iframe allowfullscreen="" frameborder="0" height="375" mozallowfullscreen="" src="//player.vimeo.com/video/92182179" webkitallowfullscreen="" width="500"></iframe> <br />
<a href="http://vimeo.com/92182179">Crematogaster scutellaris</a> from <a href="http://vimeo.com/antarea">FOURMIS TV</a> on <a href="https://vimeo.com/">Vimeo</a>.</div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-22563631992134695612011-12-22T07:57:00.000-08:002011-12-22T07:57:57.492-08:00activités 2011repas sur nectaires floraux de bignone:<br />
<iframe width="560" height="315" src="http://www.youtube.com/embed/LRz3ittPqv4?hd=1" frameborder="0" allowfullscreen></iframe><br />
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essaimages en octobre :<br />
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<iframe width="560" height="315" src="http://www.youtube.com/embed/x1hwd6ACbhY?hd=1" frameborder="0" allowfullscreen></iframe>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-47495295892120418642011-04-25T14:22:00.000-07:002015-01-04T15:46:55.858-08:00Quelques agapes pascales<div dir="ltr" style="text-align: left;" trbidi="on">
C'est la fête pour Crematogaster en ce jour de Pâques.<br />
sur un geyko : <br />
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Sur un lombric :<br />
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où la chair est tirée :<br />
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en vidéo :<br />
<iframe allowfullscreen="" frameborder="0" height="350" src="http://www.youtube.com/embed/xfSaaUmwXmQ" width="650"></iframe></div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-20470154719446193912009-11-07T04:41:00.000-08:002009-11-10T12:59:20.635-08:00clef d'identification des fourmis de FranceUne clef d'identification des fourmis à partir de photo taxonomiques ou prise dans la nature permettant d'apprécier les critères de prise en compte de la détermination. <br />
<div class="separator" style="clear: both; text-align: center;"><a href="http://cle.fourmis.free.fr/" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/_Z48QnBq5uhQ/SvVq2mEYA3I/AAAAAAAABSo/8b46vbudUkQ/s320/logo-reduit.jpg" /></a><br />
</div><div class="separator" style="clear: both; text-align: center;"><a href="http://cle.fourmis.free.fr/">http://cle.fourmis.free.fr</a><br />
</div>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-42603769809439529252009-11-05T14:08:00.000-08:002014-06-27T10:32:32.355-07:00fonds blancs<div dir="ltr" style="text-align: left;" trbidi="on">
Petit délire esthétique :<br />
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-30881196788110698732009-01-01T15:32:00.000-08:002009-06-21T15:38:07.016-07:00galerie pour le plaisir visuel<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_Z48QnBq5uhQ/Sj62EYQPVlI/AAAAAAAAA8o/RsgT3LeHPcs/s1600-h/fourmi_crematogaster_coccinelle_2f.jpg"><img style="cursor: pointer; width: 400px; height: 374px;" src="http://1.bp.blogspot.com/_Z48QnBq5uhQ/Sj62EYQPVlI/AAAAAAAAA8o/RsgT3LeHPcs/s400/fourmi_crematogaster_coccinelle_2f.jpg" alt="" id="BLOGGER_PHOTO_ID_5349913593709024850" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_Z48QnBq5uhQ/Sj61sElP82I/AAAAAAAAA8g/4KHSxD9qB9c/s1600-h/crematogaster_rose_14gf.jpg"><img style="cursor: pointer; width: 382px; height: 400px;" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/Sj61sElP82I/AAAAAAAAA8g/4KHSxD9qB9c/s400/crematogaster_rose_14gf.jpg" alt="" id="BLOGGER_PHOTO_ID_5349913176111575906" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_Z48QnBq5uhQ/Sj61MbYgvjI/AAAAAAAAA8Y/zy-Ti5MATdQ/s1600-h/crematogaster_rose_8gf.jpg"><img style="cursor: pointer; width: 365px; height: 400px;" src="http://2.bp.blogspot.com/_Z48QnBq5uhQ/Sj61MbYgvjI/AAAAAAAAA8Y/zy-Ti5MATdQ/s400/crematogaster_rose_8gf.jpg" alt="" id="BLOGGER_PHOTO_ID_5349912632476352050" border="0" /></a>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-15709102572083184262008-01-30T14:15:00.000-08:002014-06-27T10:41:30.241-07:00les pheromones<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-style: italic;">Crematogaster scutellaris</span> est <span style="font-style: italic;">Aculeate</span> aussi par son aiguillon. Vestige de la tarière d’Hyménoptères mais qui revêt ici une forme plus simple lui permettant d’émettre des phéromones. En Catalan, elle est appelée "rabachine". L’acide formique brûle la peau !<o:p></o:p></div>
La capacité pour cette espèce à lever le gastre au dessus de la tête n'est pas dénuée d'intérêt. En émettant une gouttelette de phéromones, elles arrivent à communiquer avec les autres ouvrières. <a href="http://www.myrmecophilie.fr/cariboost1/crbst_14.html">La goutte placée au bout du gastre est visualisable aisément</a>, tout comme l'odeur fortement acide.<br />
Cela peut être une phéromone d'alerte, afin de signaler une source de nourriture :<br />
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à exciter les sexués leur donnant le signal de départ pour le vol nuptial<br />
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Les fourmis utilisent efficacement un système de communication de recrutement basé sur la sécrétion des glandes poison ( glande Dufour) . Les ouvrières fondent leurs taches sur la division du travail. Les jeunes ouvrières effectuent les soins du couvain ; leur glande poison se développe et atteint sa taille finale de 0,5 μl à l'âge de 6 semaines, quand ils deviennent fourragères. La sécrétion déposée au cours de combats avec des ennemis ou des proies est composée de quantités égales à la fois d'une grande volatilité et une faible fraction volatile.<br />
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La glande Dufour des<span style="font-style: italic;"> Crematogaster scutellaris</span> produit un mélange de long-acétates. Le poison de la glande contient deux enzymes très actifs: un acétate estérase et d'un alcool oxydase. Au cours de venin d'émission, les deux enzymes se mélangent et s'accumulent sur la piqûre, où la formation de l'électrophile très aldéhyde de l'acétate est lancé. L'acide acétique, produit au cours de la réaction, agit comme phéromones d'alarme</div>
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Au sein de la fraction volatile élevée , le limonène est le composant principal (97%) et est le seul à déclencher de manière olfactive l'alerte des fourmis dans les environs et de les recruter dans les lieux de combat où ils assemblent. La limonène répond exactement de la même manière qu'il soit appliqué en concentration ou en suspension dans l'air.<br />
Les autres composantes de la fraction volatile élevée sont quatre autres hydrocarbures et de l'hexanoïque nitrile. La forte volatilité et de la faible fraction volatile de la sécrétion des glandes poison ont chacun une double fonction:<br />
- la faible réduction des substances volatiles, dont la composante principale est un alcaloïde, servant de fixatif et à étendre la période effective de la limonène signal en modifiant son évaporation cinétique.<br />
- la forte volatilité de recrutement signal . La limonène est également le solvant de l'alcaloïde et améliore sa diffusion sur la surface de la cuticule des arthropodes ennemis ou proies<br />
<br />
<span style="font-size: 78%;"><span style="font-size: 100%;"><br />
</span><span style="font-size: 100%;">références :</span></span><br />
<table border="0" cellpadding="0" cellspacing="0" class="normal_text"><tbody>
<tr> <td align="left" width="100%">Pasteels, J.M., Daloze, D., and Boeve, J.L. 1989. Aldehydic contact poisons and alarm pheromone of the ant Crematogaster scutellaris (Hymenoptera: Myrmicinae). Enzyme-mediated production from acetate precursors. J. Chem. Ecol. 15:1501-1511.</td></tr>
<tr> <td><br /></td></tr>
<tr> <td align="left" width="100%">Leuthold, R.H., and Schlunegger, U. 1973. The alarm behaviour from the mandibular gland secretion in the ant Crematogaster scutellaris. Insectes Soc. 20:205-214.</td></tr>
<tr> <td><br /></td></tr>
<tr> <td align="left" width="100%">Schlunegger, U.P., and Leuthold, R.H. 1972. Rapid identification of volatile compounds in insects with a direct gas chromatography/mass spectrometry procedure: 3-octanone and 3-octanol in Crematogaster scutellaris and C. ashmeadi. Insect Biochem. 2:150-152.</td></tr>
<tr> <td><br /></td></tr>
</tbody></table>
source : <a href="http://www.pherobase.com/database/species/species-Crematogaster-scutellaris.php">phérobase</a><br />
<span style="font-size: 78%;"></span></div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com1tag:blogger.com,1999:blog-8382666031261757360.post-17563832052599422712008-01-27T09:25:00.000-08:002009-05-08T15:59:27.891-07:00Repas sur nectaires extrafloraux<span style="font-family:arial;">Activité autour de nectaire extra floral de bignone :<br /><br /></span><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzFcFATYd7F2P0cjCFv8jMQ9cvVzDF6Y_qTNDzuv1Mk-KW5Vt70WzJc44qJwVUCnAOPPp_KFWO8cthqrM0BLQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br /><br />Et elles en raffolent :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SNlKioxmTII/AAAAAAAAAaE/63wQkB6eDwM/s1600-h/nectaires_2a.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SNlKioxmTII/AAAAAAAAAaE/63wQkB6eDwM/s400/nectaires_2a.jpg" alt="" id="BLOGGER_PHOTO_ID_5249308799598480514" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SNlLNTBIrDI/AAAAAAAAAaM/c7MQEkEp9Us/s1600-h/nectaires1a.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SNlLNTBIrDI/AAAAAAAAAaM/c7MQEkEp9Us/s400/nectaires1a.jpg" alt="" id="BLOGGER_PHOTO_ID_5249309532492442674" border="0" /></a><br />Sur des nectaires extrafloraux d'un cerisier:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SgS5EBIWkfI/AAAAAAAAA7s/Yqtfj4ryxjU/s1600-h/fourmi_nectaire_crematogaster_4gf.jpg"><img style="cursor: pointer; width: 483px; height: 443px;" src="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SgS5EBIWkfI/AAAAAAAAA7s/Yqtfj4ryxjU/s320/fourmi_nectaire_crematogaster_4gf.jpg" alt="" id="BLOGGER_PHOTO_ID_5333591337387594226" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_Z48QnBq5uhQ/SgS5PlaCulI/AAAAAAAAA70/7QstPlXboRU/s1600-h/fourmi_nectaire_crematogaster_6gf.jpg"><img style="cursor: pointer; width: 271px; height: 320px;" src="http://3.bp.blogspot.com/_Z48QnBq5uhQ/SgS5PlaCulI/AAAAAAAAA70/7QstPlXboRU/s320/fourmi_nectaire_crematogaster_6gf.jpg" alt="" id="BLOGGER_PHOTO_ID_5333591536104028754" border="0" /></a>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-46315229311989625902008-01-26T07:52:00.001-08:002008-09-16T16:33:49.269-07:00Les galesUne reine, princesse qui désormais fécondée et a coupé ses ailes, n''a comme première activité que de trouver une cachette pour passer l'hiver à l'abri des prédateurs et fonder sa colonie. Bien souvent, on en trouve dans des gales :<br />- gale de peuplier<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tX3Tsb7XI/AAAAAAAAAKs/hJROZ6lugcI/s1600-h/gale2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tX3Tsb7XI/AAAAAAAAAKs/hJROZ6lugcI/s320/gale2.jpg" alt="" id="BLOGGER_PHOTO_ID_5159814405774110066" border="0" /></a><br />- gale de chêne:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5tYSDsb7aI/AAAAAAAAALE/xiPu1prMXcY/s1600-h/division+c+truncatus1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5tYSDsb7aI/AAAAAAAAALE/xiPu1prMXcY/s320/division+c+truncatus1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159814865335610786" border="0" /></a><br />Une gale est une nécrose de feuille dûe à des pucerons:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tYrTsb7cI/AAAAAAAAALU/ogNdcE7bBTw/s1600-h/galepeuplier5.jpg"><img style="cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tYrTsb7cI/AAAAAAAAALU/ogNdcE7bBTw/s200/galepeuplier5.jpg" alt="" id="BLOGGER_PHOTO_ID_5159815299127307714" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5tYzzsb7dI/AAAAAAAAALc/WhjTFB0lrVY/s1600-h/galepeuplier1.jpg"><img style="cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5tYzzsb7dI/AAAAAAAAALc/WhjTFB0lrVY/s200/galepeuplier1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159815445156195794" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tYrTsb7cI/AAAAAAAAALU/ogNdcE7bBTw/s1600-h/galepeuplier5.jpg"> </a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tY-Tsb7eI/AAAAAAAAALk/-jks-iIe5g4/s1600-h/galepeuplier4.jpg"><img style="cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tY-Tsb7eI/AAAAAAAAALk/-jks-iIe5g4/s200/galepeuplier4.jpg" alt="" id="BLOGGER_PHOTO_ID_5159815625544822242" border="0" /></a><br />Nécrose qui se lignifie :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tZSTsb7gI/AAAAAAAAAL0/WykbnvWvFpY/s1600-h/gale.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tZSTsb7gI/AAAAAAAAAL0/WykbnvWvFpY/s200/gale.JPG" alt="" id="BLOGGER_PHOTO_ID_5159815969142205954" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tZnjsb7iI/AAAAAAAAAME/1hIwYFuVags/s1600-h/gale1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tZnjsb7iI/AAAAAAAAAME/1hIwYFuVags/s320/gale1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159816334214426146" border="0" /></a>La reine prendra le tout petit passage.<br />Elle pourra utiliser dans des gales de chêne les loges déjà présentes :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tZ4jsb7jI/AAAAAAAAAMM/kPmYiIc1TN4/s1600-h/gale+chene3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tZ4jsb7jI/AAAAAAAAAMM/kPmYiIc1TN4/s320/gale+chene3.jpg" alt="" id="BLOGGER_PHOTO_ID_5159816626272202290" border="0" /></a><br /><p class="MsoNormal">Après une courte diapause, la ponte débutée début février donnera une fondation d’une cinquantaine d’ouvrières. Les premières ouvrières vont commencer à sortir à la recherche de nourriture. Une gyne peut rester plusieurs mois sans nourriture. Des œufs trophiques ( non fécondés) peuvent être un complément . A l’amorce de l’été pour les plus prolifiques, la saison suivante pour d’autres, elles quitteront ce nid provisoire pour trouver une souche un arbre malade et développer une colonie allant jusqu’à plusieurs milliers d’individus.</p>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-41273773147417590842008-01-26T07:23:00.000-08:002009-09-22T13:44:14.534-07:00EssaimageDe fin août à mi novembre, on peut assister au vol nuptial. C’est la période ou les sexuées gavées par les ouvrières durant l’été vont prendre leur envol. Globalement ce vol est précédé d’un épisode pluvieux et se situe en fin de journée, au crépuscule. Les princesses vont à la rencontre des mâles précédemment sortis.<br />Les ouvrières fortement excitées incitent les sexués par titillement à s'envoler:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SPUJIrq3NgI/AAAAAAAAAa0/YnwWV3IzMvQ/s1600-h/essaimage_2008_4a.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://1.bp.blogspot.com/_Z48QnBq5uhQ/SPUJIrq3NgI/AAAAAAAAAa0/YnwWV3IzMvQ/s400/essaimage_2008_4a.jpg" alt="" id="BLOGGER_PHOTO_ID_5257118184791029250" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SPUI6qHuqWI/AAAAAAAAAak/XoKe1t9SGCg/s1600-h/essaimage_2008_1a.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 209px; height: 171px;" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SPUI6qHuqWI/AAAAAAAAAak/XoKe1t9SGCg/s400/essaimage_2008_1a.jpg" alt="" id="BLOGGER_PHOTO_ID_5257117943857064290" border="0" /></a><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_Z48QnBq5uhQ/SPUJBscRpHI/AAAAAAAAAas/8qLCEJShws0/s1600-h/essaimage_2008_2a.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://3.bp.blogspot.com/_Z48QnBq5uhQ/SPUJBscRpHI/AAAAAAAAAas/8qLCEJShws0/s400/essaimage_2008_2a.jpg" alt="" id="BLOGGER_PHOTO_ID_5257118064739198066" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_Z48QnBq5uhQ/Srk2_MtqgbI/AAAAAAAABQ8/YU9gMUttHhw/s1600-h/essaimage_crematogaster_scutellaris_2009_1.jpg"><img style="cursor: pointer; width: 400px; height: 267px;" src="http://2.bp.blogspot.com/_Z48QnBq5uhQ/Srk2_MtqgbI/AAAAAAAABQ8/YU9gMUttHhw/s400/essaimage_crematogaster_scutellaris_2009_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5384395288870551986" border="0" /></a><br /><br /></div><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_Z48QnBq5uhQ/Srk21Q_UCaI/AAAAAAAABQ0/VCYOJHiMMnE/s1600-h/essaimage_crematogaster_scutellaris_2009_2.jpg"><img style="cursor: pointer; width: 400px; height: 267px;" src="http://1.bp.blogspot.com/_Z48QnBq5uhQ/Srk21Q_UCaI/AAAAAAAABQ0/VCYOJHiMMnE/s400/essaimage_crematogaster_scutellaris_2009_2.jpg" alt="" id="BLOGGER_PHOTO_ID_5384395118219626914" border="0" /></a><br /></div>Par leurs phéromones émises ils attirent les futures reines sur un terrain de rencontre entre nids. Le déclenchement est simultané, les phéromones sexuelles portant sur de grandes distances. L’accouplement s’effectue dans les airs, une femelle pouvant s’accoupler avec plusieurs mâles simultanément jusqu’à remplir sa spermathèque. Celle-ci lui permettra de tenir plusieurs années sans connaître d’autres accouplements.<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tR5Tsb7RI/AAAAAAAAAJ8/bt-NKshT3LA/s1600-h/princess3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tR5Tsb7RI/AAAAAAAAAJ8/bt-NKshT3LA/s400/princess3.jpg" alt="" id="BLOGGER_PHOTO_ID_5159807843064081682" border="0" /></a><br /><br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5tSBDsb7SI/AAAAAAAAAKE/CcSdEzAT8Zk/s1600-h/male_crematogaster_scutellaris_3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5tSBDsb7SI/AAAAAAAAAKE/CcSdEzAT8Zk/s400/male_crematogaster_scutellaris_3.jpg" alt="" id="BLOGGER_PHOTO_ID_5159807976208067874" border="0" /></a><br />Et s'il faut se désaltérer avnt l'envol, elles ne s'en privent pas. Les chances de vols nuptiaux sont plus grandes avant, pendant une pluie.<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tT0jsb7TI/AAAAAAAAAKM/hatqmo2xYtc/s1600-h/princessea.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5tT0jsb7TI/AAAAAAAAAKM/hatqmo2xYtc/s400/princessea.jpg" alt="" id="BLOGGER_PHOTO_ID_5159809960482958642" border="0" /></a><br /><br /><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dz_ePXN-gqROnnDTkmyZw3maSxXITzC3PRMg-bQoz1OLa3aqLh51Vy-_hJhGyKx7melYQe2Uo1i9WNe_MugPg' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5tVBzsb7UI/AAAAAAAAAKU/d2jbc4QgcVw/s1600-h/princesse1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5tVBzsb7UI/AAAAAAAAAKU/d2jbc4QgcVw/s400/princesse1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159811287627853122" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tVfTsb7VI/AAAAAAAAAKc/AWEiHoE1ECM/s1600-h/essaimage_crematogaster_3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tVfTsb7VI/AAAAAAAAAKc/AWEiHoE1ECM/s400/essaimage_crematogaster_3.jpg" alt="" id="BLOGGER_PHOTO_ID_5159811794433994066" border="0" /></a><br /><p class="MsoNormal">La prédation est alors grande, les martinets,<span style=""> </span>chauve-souris principalement<span style=""> </span>profitant de cet apport de nourriture en dévorant leur gastre en plein vol.</p> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tVrTsb7WI/AAAAAAAAAKk/FsWfuggAKDQ/s1600-h/essaimage_crematogaster_9.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5tVrTsb7WI/AAAAAAAAAKk/FsWfuggAKDQ/s400/essaimage_crematogaster_9.jpg" alt="" id="BLOGGER_PHOTO_ID_5159812000592424290" border="0" /></a><br /><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dyq3N57UNR8BIykhXT7q1ZsVgjDb0duIiQ4CZajXilBmlodmllkGTNELq7Xp00WpJeLooG-DF5c4yYXqIdzKA' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br /><br />Une fois accouplée en vol, la princesse se coupera les ailes et ira se chacher dans des gales ou autres cachettes dans du bois.LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-39866549365216493782008-01-25T15:39:00.000-08:002014-06-29T05:17:41.451-07:00Le genre Crematogaster<div dir="ltr" style="text-align: left;" trbidi="on">
Ce genre appartient à la sous-famille des <i>Myrmicinae</i> .<br />
<i>Crematogaster</i> est composé en tout de 427 espèces (Bolton, 1995).<br />
En France, on ne trouve que 3 espèces du genre <i>Crematogaster</i> :<br />
<i></i><i>Crematogaster auberti</i><br />
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<i>Crematogaster scutellaris</i>,<br />
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<a href="http://3.bp.blogspot.com/-f6QTKyLIoDI/U7ADvxhHfMI/AAAAAAAALv0/ySvyZZcGa34/s1600/crematogaster_scutellaris_taxo.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://3.bp.blogspot.com/-f6QTKyLIoDI/U7ADvxhHfMI/AAAAAAAALv0/ySvyZZcGa34/s1600/crematogaster_scutellaris_taxo.jpg" height="238" width="400" /></a></div>
<i></i><br />
<i>Crematogaster sordidula</i>.<br />
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<o:p></o:p> <br />
Cette espèce a été décrite pour la première fois en 1792 par l'entomologiste français Guillaume-Antoine Olivier, dans le Tome 6 de <i>Encyclopédie méthodique</i>.<o:p></o:p></div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-53063801382560808632008-01-25T15:05:00.000-08:002008-09-16T16:34:42.452-07:00Les puceronsLe régime omnivore elle privilégie les Pucerons et les Coccides dont elle tirera un miellat.<o:p></o:p> <p class="MsoNormal">Cet apport de sucre peut représenter l'unique source de glucides de la colonie..<span style="color:black;"> Le puceron excrète par l'anus les sucres qu'il ne peut pas assimiler. </span>Les ouvrières titillent les pucerons avec leurs antennes pour les inciter à extraire le miellat <span style=""> </span>tout en les protégeant des prédateurs comme les coccinelles. <span style="color:black;"><span style=""> </span></span><span style=""> </span>Ainsi soignés, les pucerons sont plus gras et se reproduisent bien plus vite. Les fourmis recherchent des pucerons faisant beaucoup de miellat. <span style="color:black;">Le miellat est très riche en fructose, sucrose et glucose, de plus, on y a recensé plus de 20 acides aminés (les pucerons excrètent environ 1/3 de l'azote absorbé). </span><o:p></o:p></p> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5pruDsb7OI/AAAAAAAAAJk/yFksVT9EvDo/s1600-h/association_crematogaster.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5pruDsb7OI/AAAAAAAAAJk/yFksVT9EvDo/s400/association_crematogaster.jpg" alt="" id="BLOGGER_PHOTO_ID_5159554762116164834" border="0" /></a>Si les fourmis trouvent d'autres pucerons plus juteux ou moins corniculés , les précédents sont abandonnés, ou parfois servent de plats de résistance. La compétition est donc assez forte et les fourmis agissent comme des agents de sélection.<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5psMDsb7PI/AAAAAAAAAJs/iJg2LCK28nM/s1600-h/crematogaster_citrus_1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5psMDsb7PI/AAAAAAAAAJs/iJg2LCK28nM/s400/crematogaster_citrus_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159555277512240370" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5psvDsb7QI/AAAAAAAAAJ0/Rk1CWJyVeXY/s1600-h/Img_1956.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5psvDsb7QI/AAAAAAAAAJ0/Rk1CWJyVeXY/s400/Img_1956.jpg" alt="" id="BLOGGER_PHOTO_ID_5159555878807661826" border="0" /></a><br /><br />Et les cochenilles :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/SHUrf1PTk8I/AAAAAAAAAUE/zAfLooP52t0/s1600-h/crematogaster_scutellaris_bignone_02.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/SHUrf1PTk8I/AAAAAAAAAUE/zAfLooP52t0/s400/crematogaster_scutellaris_bignone_02.jpg" alt="" id="BLOGGER_PHOTO_ID_5221127168873173954" border="0" /></a>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-17600669472127148482008-01-25T15:01:00.001-08:002014-04-13T06:11:08.183-07:00Le mâle<div dir="ltr" style="text-align: left;" trbidi="on">
Et pour qu'il y ait une reproduction sexuée, il faut un mâle. ll ne sera présent qu'en vue d'un accouplement. Sa présence sera de fin août à fin octobre environ selon la localisation et l'âge de la colonie.<br />
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<a href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5pqsTsb7LI/AAAAAAAAAJM/QeCLRsPUjIA/s1600-h/malecrematogaster.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5pqsTsb7LI/AAAAAAAAAJM/QeCLRsPUjIA/s400/malecrematogaster.jpg" id="BLOGGER_PHOTO_ID_5159553632539765938" style="display: block; margin: 0px auto 10px; text-align: center;" /></a> <br />
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<a href="http://2.bp.blogspot.com/-1BUFDDRrIPA/U0qMcv4W4ZI/AAAAAAAALns/kJXU1GZFwd0/s1600/male_crematogaster_scutellaris_a.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/-1BUFDDRrIPA/U0qMcv4W4ZI/AAAAAAAALns/kJXU1GZFwd0/s1600/male_crematogaster_scutellaris_a.jpg" height="640" width="612" /></a></div>
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<a href="http://3.bp.blogspot.com/-yHJe3hfrxAM/U0qM2YL5z3I/AAAAAAAALn0/a8YtRNXIRbo/s1600/tete_male_crematogaster_scutellaris_a.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://3.bp.blogspot.com/-yHJe3hfrxAM/U0qM2YL5z3I/AAAAAAAALn0/a8YtRNXIRbo/s1600/tete_male_crematogaster_scutellaris_a.jpg" height="400" width="362" /></a></div>
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LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-80509039149596943472008-01-25T14:53:00.000-08:002014-04-13T06:12:18.083-07:00La reine<div dir="ltr" style="text-align: left;" trbidi="on">
C'est la génitrice de la fondation. Il n'y en a qu'une dans une colonie .<br />
<a href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5ppFDsb7II/AAAAAAAAAI0/DpbSreVQBo0/s1600-h/gyne_crematogaster_scutellaris_001.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5ppFDsb7II/AAAAAAAAAI0/DpbSreVQBo0/s400/gyne_crematogaster_scutellaris_001.jpg" id="BLOGGER_PHOTO_ID_5159551858718272642" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
<a href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5ppSTsb7JI/AAAAAAAAAI8/6AMvXZUnxro/s1600-h/tete_gyne_crematogaster_scutellaris_01.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5ppSTsb7JI/AAAAAAAAAI8/6AMvXZUnxro/s400/tete_gyne_crematogaster_scutellaris_01.jpg" id="BLOGGER_PHOTO_ID_5159552086351539346" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
<a href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5pp9jsb7KI/AAAAAAAAAJE/b4N093jT9D0/s1600-h/gyne_novembre_2006.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5pp9jsb7KI/AAAAAAAAAJE/b4N093jT9D0/s400/gyne_novembre_2006.jpg" id="BLOGGER_PHOTO_ID_5159552829380881570" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a></div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-27909156773821640842008-01-24T12:49:00.000-08:002011-04-16T14:41:41.525-07:00OmnivoresL'occasion de manger un peu de viande ne se manque pas. Un bon gros lombric après la pluie n'a pas intérêt à rester trop longtemps au soleil :<br />
<a href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5j6QDsb7GI/AAAAAAAAAIg/-Z37v249QPA/s1600-h/lombric5.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5159148526929439842" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5j6QDsb7GI/AAAAAAAAAIg/-Z37v249QPA/s400/lombric5.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
<a href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5j6cDsb7HI/AAAAAAAAAIo/wBPO7M83R1M/s1600-h/lombric4.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5159148733087870066" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5j6cDsb7HI/AAAAAAAAAIo/wBPO7M83R1M/s400/lombric4.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
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Et un escargot écrasé :<br />
<a href="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7ryLhuLqI/AAAAAAAAAQA/bw9GJ2mfsbU/s1600-h/escargot_scutellaris_6.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5210361066234457762" src="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7ryLhuLqI/AAAAAAAAAQA/bw9GJ2mfsbU/s400/escargot_scutellaris_6.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a>dont on se partage les morceaux :<br />
<a href="http://bp0.blogger.com/_Z48QnBq5uhQ/SE7sJvBOBXI/AAAAAAAAAQY/QZAx4m2rXk0/s1600-h/escargot_scutellaris_3.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5210361470898799986" src="http://bp0.blogger.com/_Z48QnBq5uhQ/SE7sJvBOBXI/AAAAAAAAAQY/QZAx4m2rXk0/s400/escargot_scutellaris_3.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a>la goutte d'acide formique pour signalr la source de nourriture :<br />
<a href="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7sEtaw5zI/AAAAAAAAAQQ/3gOfQwAaNlg/s1600-h/escargot_scutellaris_2.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5210361384569726770" src="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7sEtaw5zI/AAAAAAAAAQQ/3gOfQwAaNlg/s400/escargot_scutellaris_2.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a>et un petit contact antennaire pour confirmer l'information :<br />
<a href="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7r_Iz6PbI/AAAAAAAAAQI/4f4bIHVqL-Q/s1600-h/escargot_scutellaris_1.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5210361288843738546" src="http://bp2.blogger.com/_Z48QnBq5uhQ/SE7r_Iz6PbI/AAAAAAAAAQI/4f4bIHVqL-Q/s400/escargot_scutellaris_1.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
Un scorpion !<br />
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<img alt="" border="0" id="BLOGGER_PHOTO_ID_5240782302802842530" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SLr_vM-3k6I/AAAAAAAAAUM/eyViPHYfNbo/s400/crematogaster_scorpion_2.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /><img alt="" border="0" id="BLOGGER_PHOTO_ID_5240782302802842530" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SLr_vM-3k6I/AAAAAAAAAUM/eyViPHYfNbo/s400/crematogaster_scorpion_2.jpg" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /> de tout<br />
<div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-DMwwJAgDLYg/TaoMYszMlEI/AAAAAAAADGk/wFqa-U4eN2g/s1600/alimentation_crematogaster_scutellaris_1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="291" src="http://4.bp.blogspot.com/-DMwwJAgDLYg/TaoMYszMlEI/AAAAAAAADGk/wFqa-U4eN2g/s400/alimentation_crematogaster_scutellaris_1.jpg" width="400" /></a> </div>et de rien ?<br />
<div class="separator" style="clear: both; text-align: center;"><a href="http://3.bp.blogspot.com/-bZaCS-VhanE/TaoM_Vl5iyI/AAAAAAAADGo/QDtCvPje1sk/s1600/alimentation_crematogaster_scutellaris_2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="297" src="http://3.bp.blogspot.com/-bZaCS-VhanE/TaoM_Vl5iyI/AAAAAAAADGo/QDtCvPje1sk/s400/alimentation_crematogaster_scutellaris_2.jpg" width="400" /></a></div><br />
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<div class="separator" style="clear: both; text-align: center;"><a href="http://www.blogger.com/post-edit.g?blogID=8382666031261757360&postID=2790915677382164084" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"></a></div><div class="separator" style="clear: both; text-align: center;"><a href="http://www.blogger.com/post-edit.g?blogID=8382666031261757360&postID=2790915677382164084" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"></a></div><div class="separator" style="clear: both; text-align: center;"><a href="http://www.blogger.com/post-edit.g?blogID=8382666031261757360&postID=2790915677382164084" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"></a></div>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-25935586598781605472008-01-24T09:31:00.001-08:002008-09-16T16:36:44.177-07:00A tableLa recherche de nourriture est un élément essentiel dans la vie d'une colonie. Cette espèce est omnivore avec une préférence pour les substances sucrées. Le miellat apporté par des pucerons ou des cochenilles a leur préférence:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5jMCjsb7DI/AAAAAAAAAII/vP3qUSimIlQ/s1600-h/bignone_scutellaris_1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5jMCjsb7DI/AAAAAAAAAII/vP3qUSimIlQ/s400/bignone_scutellaris_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159097717466328114" border="0" /></a><br />Elles vont traire ces pucerons qui prélèvent la sève des plantes. Ils la transforment et évacuent l'excédent que les ouvrières vont récupérer. Et vont jusqu'à titiller avec leurs antennes l'anus des pucerons pour tirer profit de la substance salvatrice:<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5jMqDsb7EI/AAAAAAAAAIQ/mBdgEuy64zM/s1600-h/v-miellat_2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5jMqDsb7EI/AAAAAAAAAIQ/mBdgEuy64zM/s400/v-miellat_2.jpg" alt="" id="BLOGGER_PHOTO_ID_5159098396071160898" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5jMzzsb7FI/AAAAAAAAAIY/joBMg0qtlRE/s1600-h/pucerons_1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5jMzzsb7FI/AAAAAAAAAIY/joBMg0qtlRE/s400/pucerons_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159098563574885458" border="0" /></a>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-30079083914462812572008-01-24T05:01:00.000-08:002014-06-29T05:13:46.866-07:00les ouvrières<div dir="ltr" style="text-align: left;" trbidi="on">
Un peu d'éléments pour la décrire morphologiquement.<br />
<div class="MsoNormal">
<a href="http://www.myrmecophilie.fr/cariboost1/crbst_39.html"><i>Crematogaster scutellaris</i></a> est un Hyménoptère , sous ordre des Apocrites, qui se caractérise par un étranglement entre le gastre et le thorax, comme toutes les fourmis ( <i>Formicidae</i>) . </div>
Les ouvrières :<br />
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<a href="http://4.bp.blogspot.com/-0QqbFo1cDZM/U0qLOWdzaKI/AAAAAAAALnc/TXqGrTK8HAg/s1600/crematogaster_scutellaris_taxo.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://4.bp.blogspot.com/-0QqbFo1cDZM/U0qLOWdzaKI/AAAAAAAALnc/TXqGrTK8HAg/s1600/crematogaster_scutellaris_taxo.jpg" height="380" width="640" /></a></div>
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Le sien est en deux parties : un pétiole et un post-pétiole le faisant appartenir à la sous famille des <i>Myrmicinae</i> :<br />
Le gastre ( abdomen) est en forme de cœur :<br />
<a href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iMwDsb6_I/AAAAAAAAAHQ/HQ6zAzuBzDA/s1600-h/gastre_crematogaster_scutellaris_1.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iMwDsb6_I/AAAAAAAAAHQ/HQ6zAzuBzDA/s400/gastre_crematogaster_scutellaris_1.jpg" id="BLOGGER_PHOTO_ID_5159028130406198258" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a>Le pétiole est placé haut :<br />
<a href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iNRzsb7AI/AAAAAAAAAHY/eF_W0FoIOd4/s1600-h/gastre_cremato.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iNRzsb7AI/AAAAAAAAAHY/eF_W0FoIOd4/s400/gastre_cremato.jpg" id="BLOGGER_PHOTO_ID_5159028710226783234" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a><br />
En opposition à d'autres espèces qui seront ainsi (<span style="font-style: italic;">Messor barbarus</span> ) :<br />
<a href="http://bp3.blogger.com/_Z48QnBq5uhQ/R5iNfjsb7BI/AAAAAAAAAHg/KZT1v3rb7PI/s1600-h/petiole_messor_cote.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="http://bp3.blogger.com/_Z48QnBq5uhQ/R5iNfjsb7BI/AAAAAAAAAHg/KZT1v3rb7PI/s320/petiole_messor_cote.jpg" id="BLOGGER_PHOTO_ID_5159028946449984530" style="cursor: pointer; display: block; margin: 0px auto 10px; text-align: center;" /></a>La tête :<br />
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<a href="http://2.bp.blogspot.com/-vYi0pLtRrSk/U0qLw5NkIwI/AAAAAAAALnk/5AACr1nK9oU/s1600/tete_crematogaster_scutellaris.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/-vYi0pLtRrSk/U0qLw5NkIwI/AAAAAAAALnk/5AACr1nK9oU/s1600/tete_crematogaster_scutellaris.jpg" height="608" width="640" /></a></div>
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Elles ont la capacité de par la position du pétiole sur la partie supérieure du premier tergite de lever le gastre au dessus de la tête :<br />
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<img alt="" border="0" src="http://4.bp.blogspot.com/_Z48QnBq5uhQ/SuSi6tifjuI/AAAAAAAABSI/oJ6DG2Pcz6Q/s400/petiole_crematogaster_scutellaris_1.jpg" id="BLOGGER_PHOTO_ID_5396617383037079266" style="height: 400px; width: 337px;" /></div>
LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-83590259725424173702008-01-24T04:50:00.000-08:002008-09-16T16:37:30.948-07:00nuisible ?<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iKZzsb67I/AAAAAAAAAGw/5QwZ2K2BROE/s1600-h/liege_dessous_2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iKZzsb67I/AAAAAAAAAGw/5QwZ2K2BROE/s400/liege_dessous_2.jpg" alt="" id="BLOGGER_PHOTO_ID_5159025549130853298" border="0" /></a><br />On la dit nuisible. Nuisible pour le chêne liège car les industriels du bouchon ne peuvent l'apprécier. La qualité des plaques récoltées est dépréciée par l'action des fourmis qui prennent la cellulose :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iKNTsb66I/AAAAAAAAAGo/9ZVcqbFYLx0/s1600-h/liege_dessous_1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iKNTsb66I/AAAAAAAAAGo/9ZVcqbFYLx0/s400/liege_dessous_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159025334382488482" border="0" /></a>Et elles s'en régalent :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iKyTsb68I/AAAAAAAAAG4/0W-6B9C9UHw/s1600-h/bois.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iKyTsb68I/AAAAAAAAAG4/0W-6B9C9UHw/s400/bois.jpg" alt="" id="BLOGGER_PHOTO_ID_5159025970037648322" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iLCDsb69I/AAAAAAAAAHA/M9sK7gtP_UU/s1600-h/cremato.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iLCDsb69I/AAAAAAAAAHA/M9sK7gtP_UU/s400/cremato.jpg" alt="" id="BLOGGER_PHOTO_ID_5159026240620587986" border="0" /></a><br /><p class="MsoNormal">Elle affectionne de cloisonner son nid de loges en carton. Il est réalisé à base de bois mâché fabriqué par les ouvrières qui utilisent leurs glandes céphaliques. Sans être lignicole, on la trouvera dans le bois morts, les grosses souches. Jamais dans du bois en sève ou fraîchement coupé ou traité dans les demeures. Pourtant elle est réputée nuisible. </p> <h2><span style="font-weight: normal;font-size:12;" ><span style=""> </span>Fiche pédagogique -Les Insectes du Chêne-liège -par Claire Villemant <sup><a href="http://www.inra.fr/opie-insectes/f-chlieg.htm#un#un">(1)</a></sup> et Alain Fraval <sup><a href="http://www.inra.fr/opie-insectes/f-chlieg.htm#deux#deux">(2)</a></sup><span style=""> </span><o:p></o:p></span></h2> <p><a href="http://www.inra.fr/opie-insectes/f-chlieg.htm">http://www.inra.fr/opie-insectes/f-chlieg.htm</a></p> <p>Nuisible pour les producteurs de liège. Même si elles n’affectent que l’écorce sans s’en prendre au tronc lui-même. La qualité des récoltes s’en ressent. Ce ne sera qu’en terme économique que prévaudra ce jugement. </p> <p class="MsoNormal" style="">Pathologie de la subéraie - en France<span style=""> </span>-Ravageurs et maladies du Chêne-liège - <o:p></o:p></p> <span style=";font-family:";font-size:12;" ><a href="http://www.institutduliege.com/doc_telecharge/Pathologie_suberaie.pdf">http://www.institutduliege.com/doc_telecharge/Pathologie_suberaie.pdf</a></span>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-72174370043700784022008-01-24T04:34:00.000-08:002008-09-16T16:37:54.360-07:00biotopeOù trouver cette espèce de fourmis ? <p class="MsoNormal">Cette espèce est dite de la zone de l’olivier. Elle est commune sur tout la bassin méditerranéen. <span style=""> </span>Présente jusqu’en Aquitaine. Suberaies, chênaies, figuiers mais dans les vieilles vignes tout aussi bien, … sont nécessaires, associés à son alimentation où elle trouvera sur ces arbres les ressources nécessaires. Parfois, très rarement en terre, milieu qu’elle ne peut apprécier étant fortement xérophile. De temps en temps entre de grandes feuillures de shistes . </p> Une suberaie :<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iHKDsb61I/AAAAAAAAAF8/wvk4MGLxlPM/s1600-h/suberaie1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp1.blogger.com/_Z48QnBq5uhQ/R5iHKDsb61I/AAAAAAAAAF8/wvk4MGLxlPM/s400/suberaie1.jpg" alt="" id="BLOGGER_PHOTO_ID_5159021980013030226" border="0" /></a>Elle est dite lignicole. On la trouve logiquement essentiellement dans du bois. Souches , arbres , pieds de vigne :<br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iHhTsb62I/AAAAAAAAAGE/InY4rx8pT7U/s1600-h/souche3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iHhTsb62I/AAAAAAAAAGE/InY4rx8pT7U/s400/souche3.jpg" alt="" id="BLOGGER_PHOTO_ID_5159022379444988770" border="0" /> </a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iHvzsb63I/AAAAAAAAAGM/10L7pRZ4MCA/s1600-h/souche.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp0.blogger.com/_Z48QnBq5uhQ/R5iHvzsb63I/AAAAAAAAAGM/10L7pRZ4MCA/s400/souche.jpg" alt="" id="BLOGGER_PHOTO_ID_5159022628553091954" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iH8Tsb64I/AAAAAAAAAGU/PZwBQ4Q2Mkg/s1600-h/souche5.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp2.blogger.com/_Z48QnBq5uhQ/R5iH8Tsb64I/AAAAAAAAAGU/PZwBQ4Q2Mkg/s400/souche5.jpg" alt="" id="BLOGGER_PHOTO_ID_5159022843301456770" border="0" /></a>LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0tag:blogger.com,1999:blog-8382666031261757360.post-1777998273118999742008-01-23T15:28:00.000-08:002009-04-02T12:15:46.344-07:00improbable<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp3.blogger.com/_Z48QnBq5uhQ/SB44tbl-zII/AAAAAAAAAPM/fbLVYHYW-Hs/s1600-h/os_de_poulet_1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://bp3.blogger.com/_Z48QnBq5uhQ/SB44tbl-zII/AAAAAAAAAPM/fbLVYHYW-Hs/s400/os_de_poulet_1.jpg" alt="" id="BLOGGER_PHOTO_ID_5196653373184461954" border="0" /></a><br />un os d'oiselet : tout est bon .LEBAShttp://www.blogger.com/profile/18409294708156283150noreply@blogger.com0