Academic literature on the topic 'Diacamma'

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Journal articles on the topic "Diacamma"

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Saputra, Ari, Zainal Arifin, and Riyanto Riyanto. "The Inventory of Soil Ants in Residential Area of Palembang." Jurnal Biota 7, no. 1 (January 15, 2021): 25–35. http://dx.doi.org/10.19109/biota.v7i1.5331.

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The purpose of this research is to find out the species of soil ants in the residential area. The sampling method is hand collecting and baited trap (tuna and honey). There are 8 species found: Acanthomyrmex sp., Solenopsis germinata, Monomorium pharaonis, Pheidole megacephala, Paratrechina longicornis. Tapinoma melanocephalum, Camponotus ligniperda, Diacamma intricatum. The most numerous species, namely Pheidole megacephala and the least species, namely Diacamma intricatum. Ant species diversity tends to increase, as human activity decreases
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ALLARD, DIANE, BRUNO GOBIN, and JOHAN BILLEN. "Timing of sperm transfer in Diacamma pallidum." Physiological Entomology 32, no. 4 (December 2007): 382–87. http://dx.doi.org/10.1111/j.1365-3032.2007.00590.x.

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Cournault, L., and C. Peeters. "Aggression regulates monogyny in non-mutilating Diacamma ants." Insectes Sociaux 59, no. 4 (June 29, 2012): 533–39. http://dx.doi.org/10.1007/s00040-012-0251-9.

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Karnik, Nutan, H. Channaveerappa, H. A. Ranganath, and Raghavendra Gadagkar. "Karyotype instability in the ponerine ant genus Diacamma." Journal of Genetics 89, no. 2 (August 2010): 173–82. http://dx.doi.org/10.1007/s12041-010-0023-0.

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Baratte, Sebastien, Matthew Cobb, and Christian Peeters. "Reproductive conflicts and mutilation in queenless Diacamma ants." Animal Behaviour 72, no. 2 (August 2006): 305–11. http://dx.doi.org/10.1016/j.anbehav.2005.10.025.

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Shimoji, H., Y. Fujiki, R. Yamaoka, and K. Tsuji. "Egg discrimination by workers in Diacamma sp. from Japan." Insectes Sociaux 59, no. 2 (November 3, 2011): 201–6. http://dx.doi.org/10.1007/s00040-011-0205-7.

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SUWABE, Mayuko, Hitoshi OHNISHI, Tomonori KIKUCHI, and Kazuki TSUJI. "Nestmate discrimination in the queenless ponerine ant Diacamma sp. from Japan." Entomological Science 10, no. 1 (March 2007): 7–10. http://dx.doi.org/10.1111/j.1479-8298.2006.00193.x.

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Doums, Claudie. "Characterization of microsatellite loci in the queenless Ponerine ant Diacamma cyaneiventre." Molecular Ecology 8, no. 11 (November 1999): 1957–59. http://dx.doi.org/10.1046/j.1365-294x.1999.00778.x.

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Peeters, Chr, and S. Higashi. "Reproductive dominance controlled by mutilation in the queenless ant Diacamma australe." Naturwissenschaften 76, no. 4 (April 1989): 177–80. http://dx.doi.org/10.1007/bf00366404.

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Viginier, B., C. Peeters, L. Brazier, and C. Doums. "Very low genetic variability in the Indian queenless ant Diacamma indicum." Molecular Ecology 13, no. 7 (April 27, 2004): 2095–100. http://dx.doi.org/10.1111/j.1365-294x.2004.02201.x.

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Dissertations / Theses on the topic "Diacamma"

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Baratte, Sébastien. "Régulation irréversible de la reproduction chez la fourmi sans reine Diacamma ceylonense : gènes, comportement et évolution." Paris 6, 2005. http://www.theses.fr/2005PA066376.

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Bocher, Aurélie. "Défenses immunitaires et division du travail chez les fourmis." Paris 6, 2007. http://www.theses.fr/2007PA066294.

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Chez les insectes sociaux, les défenses immunitaires sont importantes à la fois pour la survie individuelle et pour la protection de la colonie contre les infections parasitaires. Nous avons étudié comment les défenses immunitaires, qui sont un trait coûteux, étaient modulées par la division du travail concernant la reproduction ou les autres tâches. En effet, les différentes fonctions assurées par les individus au sein de la colonie peuvent être associées à des contraintes sélectives distinctes et donc faire varier l’investissement immunitaire. Réciproquement, considérer les défenses immunitaires comme un trait d’histoire de vie peut aider à comprendre certains aspects de l’évolution sociale. Les fourmis offrent des modèles intéressants pour ces problématiques. Dans un premier temps, nous avons étudié l’impact des conflits reproducteurs dans une espèce de fourmi sans reine, Diacamma sp. Nilgiri. Un taux plus faible de travail et une immunosuppression ont été observés dans les groupes affectés par les conflits, ce qui suggère un coût des conflits reproducteurs. Dans un deuxième temps, nous avons examiné les niveaux de phénoloxydase (PO) et prophénoloxydase (PPO), deux enzymes importantes du système immunitaire des insectes, chez les ouvrières de la fourmi Cataglyphis velox. Nous avons trouvé que les fourrageuses présentaient des niveaux plus élevés de PO que les ouvrières internes. Ceci semble indiquer une élévation du niveau de PO chez les fourrageuses en lien avec le risque élevé de blessures et d’infection à l’extérieur du nid. Enfin, nous avons fait l’hypothèse que les ouvrières inactives, fréquemment observées dans les colonies, pourraient investir plus de ressources dans les défenses immunitaires. Nous avons conduit une étude comportementale chez Cataglyphis velox associée à des mesures de défenses immunitaires. Nous n’avons pas mis en évidence de lien entre l’inactivité des ouvrières et leurs défenses immunitaires mais d’autres paramètres immunitaires pourraient être analysés. L’ensemble de ces travaux suggère que la division du travail pourrait influencer la variation intra-coloniale dans l’immunité et souligne l’importance de prendre en compte les défenses immunitaires dans l’étude des insectes sociaux
Immune defence is a fundamental trait determining fitness in social insects, both by increasing individual survival and by limiting contamination at colony level. We investigated how individual variation in immune defence, which is a costly trait, is related to division of labour concerning reproduction or sterile tasks. Indeed, the different worker functions within the colony may be associated to distinct selection pressures and thus induce a variation in immune defence. Reciprocally, including immune defence as a life-history trait can help to understand some aspects of social evolution. Ants offer interesting models to address these questions. Firstly, we studied the effects of reproductive conflicts on labour and immune defence in a queenless ant, Diacamma sp. From Nilgiri. The groups affected by conflicts showed a lower rate of labour and an immunosuppression, suggesting a cost of reproductive conflicts. Secondly, we investigated the levels of phenoloxidase (PO) and prophenoloxidase (PPO), two major enzymes of the insect immune system, in workers of the ant Cataglyphis velox. We found a higher PO activity in foragers than in intra-nidal workers, which could result from an adaptive up-regulation of PO in foragers in relation to the high risk of infection and wounding outside the nest. Finally, we hypothesized that inactive workers, often observed in social insect colonies, may invest more resources in immune defence. We conducted a behavioural and immunological study in Cataglyphis velox to analyse the relation between inactivity and immune defence. Our hypothesis was not supported but could be further studied by measuring other immune parameters. This work suggests that division of labour may influence the intra-colonial immune variation and highlights the importance of considering immune defence for the study of social insects
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Fourcaudot, Sébastien. "Modélisation des interconnexions et étude de la diaphonie associée aux cartes de câblages imprimés." Paris 6, 2002. http://www.theses.fr/2002PA066146.

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Book chapters on the topic "Diacamma"

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Annagiri, Sumana. "Diacamma." In Encyclopedia of Social Insects, 1–6. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-90306-4_35-1.

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Annagiri, Sumana. "Diacamma." In Encyclopedia of Social Insects, 325–30. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-28102-1_35.

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