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| Author | McClure, M.; Chouteau, M.; Dejean, A. | ||||
| Title | Territorial aggressiveness on the arboreal ant Azteca alfari by Camponotus blandus in French Guiana due to behavioural constraints | Type | Journal Article | ||
| Year | 2008 | Publication | Comptes Rendus Biologies | Abbreviated Journal  |
C. R. Biol. |
| Volume | 331 | Issue | 9 | Pages | 663-667 |
| Keywords | Azteca alfari (Dolichoderinae); Camponotus blandus (Formicinae); foraging; rhythm of activity; territorial aggressiveness | ||||
| Abstract | This study reports new information on interactions between two sympatric ant species, the plant-ant Azteca alfari (Dolichoderinae) living in association with the myrmecophyte Cecropia obtusa (Cecropiaceae) and Camponotus blandus (Formicinae), a ground-nesting, arboreal-foraging species. Workers of A. alfari forage only on the foliage and the tipper parts of the trunk of their host Cecropia, while C. blandus nests in the ground but frequently forages and patrols pioneer tree foliage, including Cecropia. The activity pattern of A. alfari and the number of C. blandus on Cecropia obtusa was monitored hourly during a two-day period in a disturbed area in French Guiana. The maximum activity of C. blandus occurred between 8:30 and 12:30, at which time A. alfari had retreated within the domatia and were least present on the trunks. Even though aggressive confrontations were observed, C. blandus workers often initiate confrontations but do not prey on A. alfari nor exploit food bodies produced by Cecropia, the principal food source of A. alfari. Hence hostility appears to be the result of territoriality. Differences in their foraging rhythms are proposed as promoting resource and territory partitioning in this ant assemblage. | ||||
| Address | [McClure, Melanie] Concordia Univ, Dept Biol, Montreal, PQ H4B 1R6, Canada, Email: m_mcclur@alcor.concordia.ca | ||||
| Corporate Author | Thesis | ||||
| Publisher | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000259290200004 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 130 | ||
| Permanent link to this record | |||||
| Author | Dejean, A.; Moreau, C.S.; Kenne, M.; Leponce, M. | ||||
| Title | The raiding success of Pheidole megacephala on other ants in both its native and introduced ranges | Type | Journal Article | ||
| Year | 2008 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 331 | Issue | 8 | Pages | 631-635 |
| Keywords | invasive ants; predation; raiding other ants; recruitment | ||||
| Abstract | We studied the behaviour of the invasive African myrmicine ant, Pheidole megacephala, when confronted with colonies of other common ant species in Cameroon, a part of its native range, and in Mexico, where it has been introduced. P. megacephala raided the nests of the other ants in both cases. Eleven species out of 12 put up a rather strong resistance to raiding P. megacephala workers in Cameroon compared to only three species out of 11 in Mexico, where only colonies of Solenopsis geminata, Dorymyrmex pyramicus and Dolichoderus bispinosus resisted these raids. We conclude that P. megacephala's heightened ability to successfully raid colonies of competing ants may help explain its success and the decline of native ants in areas where it has been introduced. | ||||
| Address | [Dejean, Alain] CNRS Guyane, UPS 2561, F-97300 Cayenne, France, Email: alain.dejean@wanadoo.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000258523200008 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 210 | ||
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| Author | Martin, J.M.; Roux, O.; Groc, S.; Dejean, A. | ||||
| Title | A type of unicoloniality within the native range of the fire ant Solenopsis saevissima | Type | Journal Article | ||
| Year | 2011 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 334 | Issue | 4 | Pages | 307-310 |
| Keywords | Ants; Solenopsis saevissima; Native range; Unicoloniality | ||||
| Abstract | To determine if a type of unicoloniality exists in the fire ant Solenopsis saevissima in its native range, we conducted intraspecific aggressiveness tests in French Guiana between workers originating from 15 human-disturbed sites. We identified two “colonial groups” spread over 54 km and 12.5 km, respectively. Workers from the same group never attacked each other, but inter-group confrontations resulted in a high level of aggressiveness. These large “colonial groups” enhances the threat occasioned by S. saevissima for both agriculture and the environment. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. | ||||
| Address | [Martin, Jean-Michel; Roux, Olivier; Groc, Sarah; Dejean, Alain] Ecol Forets de Guyane UMR CNRS 8172, F-97379 Kourou, France, Email: alain.dejean@wanadoo.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier France-Editions Scientifiques Medicales Elsevier | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000290364200007 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 314 | ||
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| Author | Hattenschwiler, S.; Fromin, N.; Barantal, S. | ||||
| Title | Functional diversity of terrestrial microbial decomposers and their substrates | Type | Journal Article | ||
| Year | 2011 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 334 | Issue | 5-6 | Pages | 393-402 |
| Keywords | Bacteria; Biogeochemical cycles; Decomposition; Dissimilarity; Ecosystem functioning; Functional diversity indices; Fungi; Leaf litter | ||||
| Abstract | The relationship between biodiversity and biogeochemical processes gained much interest in light of the rapidly decreasing biodiversity worldwide. In this article, we discuss the current status, challenges and prospects of functional concepts to plant litter diversity and microbial decomposer diversity. We also evaluate whether these concepts permit a better understanding of how biodiversity is linked to litter decomposition as a key ecosystem process influencing carbon and nutrient cycles. Based on a literature survey, we show that plant litter and microbial diversity matters for decomposition, but that considering numbers of taxonomic units appears overall as little relevant and less useful than functional diversity. However, despite easily available functional litter traits and the well-established theoretical framework for functional litter diversity, the impact of functional litter diversity on decomposition is not yet well enough explored. Defining functional diversity of microorganisms remains one of the biggest challenges for functional approaches to microbial diversity. Recent developments in microarray and metagenomics technology offer promising possibilities in the assessment of the functional structure of microbial communities. This might allow significant progress in measuring functional microbial diversity and ultimately in our ability to predict consequences of biodiversity loss in the decomposer system for biogeochemical processes. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. | ||||
| Address | [Haettenschwiler, Stephan; Fromin, Nathalie; Barantal, Sandra] CNRS, CEFE, F-34293 Montpellier 5, France, Email: stephan.hattenschwiler@cefe.cnrs.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier France-Editions Scientifiques Medicales Elsevier | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000292013400008 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 323 | ||
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| Author | Masse, P.S.M.; Kenne, M.; Mony, R.; Dejean, A.; Tindo, M. | ||||
| Title | Initial behavior in colony fragments of an introduced population of the invasive ant Wasmannia auropunctata | Type | Journal Article | ||
| Year | 2011 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 334 | Issue | 7 | Pages | 572-576 |
| Keywords | Aggregation; Death feigning; Thanatosis; Worker transportation; Biological invasion; Little fire ant | ||||
| Abstract | We investigated in the laboratory the initial behavior of propagules of the invasive ant Wasmannia auropunctata in Cameroon where it has been introduced. Both workers and queens at first feigned death (thanatosis), and then the workers slowly moved around the experimental arena; the queens did the same about 10 seconds later. Each queen antennated selected workers that then aggregated together by grasping the hind leg of another ant with their mandibles. When encountering the queen again, the lead worker climbed up the queen's hind leg and onto her back, followed by some other individuals. The remaining workers followed the queen to a location in the experimental arena. When brood was present, the workers transferred it to this location. Orphaned workers did not aggregate, but gathered the brood together and took care of it. By permitting propagules to survive, these behaviors likely contribute to the success of W. auropunctata as an invader. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. | ||||
| Address | [Kenne, M; Mony, R; Tindo, M] Univ Douala, Fac Sci, Dept Biol Organismes Anim, Douala, Cameroon, Email: tindodouala@yahoo.com | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier France-Editions Scientifiques Medicales Elsevier | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000293673300010 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 332 | ||
| Permanent link to this record | |||||
| Author | Dejean, A.; Moreau, C.S.; Uzac, P.; Le Breton, J.; Kenne, M. | ||||
| Title | The predatory behavior of Pheidole megacephala | Type | Journal Article | ||
| Year | 2007 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 330 | Issue | 9 | Pages | 701-709 |
| Keywords | Invasive ants; Landmarks; Pheidole megacephala; Predatory behavior; Recruitment; pheromone; ant; behavioral ecology; foraging behavior; invasive species; nest predation; pheromone; predator-prey interaction; animal experiment; ant; article; competitor species; controlled study; foraging behavior; host range; Isoptera; nest predation; nonhuman; predation; predator prey interaction; prey selection; species invasion; worker (insect); Animals; Ants; Feeding Behavior; Female; Isoptera; Predatory Behavior; Social Behavior; Formicidae; Hexapoda; Isoptera; Pheidole megacephala | ||||
| Abstract | We studied the foraging and predatory behaviors of the invasive African myrmicine ant, Pheidole megacephala (F.) in its native range. Workers can singly capture a wide range of insects, including relatively large prey items. For still larger prey, they recruit at short range those nestmates situated within reach of an alarm pheromone and together spread-eagle the insect. These behaviors are complimented by a long-range recruitment (of nestmates remaining in the nest) based on prey size. P. megacephala scouts also use long-range recruitment when they detect the landmarks of termites and competing ant species, thus permitting them to avoid confronting these termites and ants solitarily. | ||||
| Address | Département de biologie des organismes animaux, faculté des sciences, l'université de Douala, BP 24157, Douala, Cameroon | ||||
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| ISSN | 16310691 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Cited By (since 1996): 8; Export Date: 22 October 2011; Source: Scopus; Coden: Crboc; doi: 10.1016/j.crvi.2007.06.005; PubMed ID: 17720587; Language of Original Document: English; Correspondence Address: Dejean, A.; CNRS-Guyane, UPS 2561, UMR-CNRS 5174, 16, avenue André-Aron, 97300 Cayenne, France; email: alain.dejean@wanadoo.fr | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 354 | ||
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| Author | Groc, S.; Delabie, J.H.C.; Cereghino, R.; Orivel, J.; Jaladeau, F.; Grangier, J.; Mariano, C.S.F.; Dejean, A. | ||||
| Title | Ant species diversity in the 'Grands Causses' (Aveyron, France): In search of sampling methods adapted to temperate climates RID C-4034-2011 | Type | Journal Article | ||
| Year | 2007 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 330 | Issue | 12 | Pages | 913-922 |
| Keywords | ant diversity; Grands Causses; sampling methods; temperate climate | ||||
| Abstract | This study aimed at showing the applicability of using a combination of four sampling methods (i.e., Winkler extractors, pitfall traps, baiting and manual collection), something most often conducted in the tropics, to create an inventory of ant species diversity in temperate environments. We recorded a total of 33 ant species in the Grands Causses by comparing three vegetal formations: a steppic lawn ('causse' sensu stricto), which was the most species-rich (29 species), followed by an oak grove (22 species) and a pine forest (17 species). No sampling method alone is efficient enough to provide an adequate sampling, but their combination permits one to make a suitable inventory of the myrmecofauna and to obtain information on the ecology of these ant species. | ||||
| Address | [Groc, S; Orivel, J; Grangier, J; Dejean, A] Univ Toulouse 3, CNRS, UMR 5174, Lab Evolut & Diversite Biol, F-31062 Toulouse, France, Email: alain.dejean@wanadoo.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier France-Editions Scientifiques Medicales Elsevier | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1631-0691 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000251852800009 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 359 | ||
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| Author | Dejean, A.; Petitclerc, F.; Roux, O.; Orivel, J.; Leroy, C. | ||||
| Title | Does exogenic food benefit both partners in an ant-plant mutualism? the case of Cecropia obtusa and its guest Azteca plant-ants | Type | Journal Article | ||
| Year | 2012 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 335 | Issue | 3 | Pages | 214-219 |
| Keywords | Ant-plant mutualisms; Azteca; Cecropia obtusa; Myrmecotrophy; Stable isotopes | ||||
| Abstract | In the mutualisms involving the myrmecophyte Cecropia obtusa and Azteca ovaticeps or A. alfari, both predatory, the ants defend their host trees from enemies and provide them with nutrients (myrmecotrophy). A. ovaticeps provisioned with prey and then 15N-enriched food produced more individuals than did control colonies (not artificially provisioned). This was not true for A. alfari colonies, possibly due to differences in the degree of maturity of the colonies for the chosen range of host tree sizes (less than 3 m in height). Myrmecotrophy was demonstrated for both Azteca species as provisioning the ants with 15N-enriched food translated into higher δ 15N values in host plant tissues, indicating that nitrogen passed from the food to the plant. Thus, the predatory activity of their guest ants benefits the Cecropia trees not only because the ants protect them from defoliators since most prey are phytophagous insects but also because the plant absorbs nutrients. © 2012 Académie des sciences. Published by Elsevier Masson SAS. All rights reserved. | ||||
| Address | IRD, Maladies Infectieuses et Vecteurs, Équipe BEES-IRD, BP 171, Bobo-Dioulasso, Burkina Faso | ||||
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| ISSN | 16310691 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 15 April 2012; Source: Scopus; Coden: Crboc; doi: 10.1016/j.crvi.2012.01.002; Language of Original Document: English; Correspondence Address: Dejean, A.; CNRS, Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus Agronomique, 97379 Kourou cedex, France; email: alain.dejean@wanadoo.fr | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 391 | ||
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| Author | Mony, R.; Dejean, A.; Bilong, C.F.B.; Kenne, M.; Rouland-Lefèvre, C. | ||||
| Title | Melissotarsus ants are likely able to digest plant polysaccharides | Type | Journal Article | ||
| Year | 2013 | Publication | Comptes Rendus – Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 336 | Issue | 10 | Pages | 500-504 |
| Keywords | Ant-plant interactions; Degradation of plant material; Enzymatic activity; Melissotarsus ants | ||||
| Abstract | Melissotarsus ants have an extremely specialized set of behaviours. Both workers and gynes tunnel galleries in their host tree bark. Workers walk with their mesothoracic legs pointing upwards and tend Diaspididae hemiptera for their flesh. The ants use their forelegs to plug the galleries with silk that they secrete themselves. We hypothesised that the ants' energetic needs for nearly constant gallery digging could be satisfied through the absorption of host tree tissues; so, using basic techniques, we examined the digestive capacities of workers from two species. We show that workers are able to degrade oligosaccharides and heterosides as well as, to a lesser degree, polysaccharides. This is one of the rare reports on ants able to digest plant polysaccharides other than starch. © 2013 Académie des sciences. | ||||
| Address | IRD, UMR BIOEMCO-IBIOS, 32, rue Henri-Varagnat, 93143 Bondy cedex, France | ||||
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| ISSN | 16310691 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 6 December 2013; Source: Scopus; Coden: Crboc; doi: 10.1016/j.crvi.2013.08.003; Language of Original Document: English; Correspondence Address: Dejean, A.; Université de Toulouse, UPS, Ecolab, 118, route de Narbonne, 31062 Toulouse, France; email: alain.dejean@wanadoo.fr; References: Hölldobler, B., Wilson, E.O., (1990) The Ants, , Harvard University Press Cambridge, MA, USA 730 p; Duchesne, L.C., Larson, D.W., Cellulose and the evolution of plant life (1989) BioScience, 39, pp. 238-241; Watanabe, H., Tokuda, G., Cellulolytic Systems in Insects (2010) Annu. Rev. Entomol., 55, pp. 609-632; Wenzel, M., Schonig, I., Berchtold, M., Kampfer, P., König, K., Aerobic and facultatively anaerobic cellulolytic bacteria from the gut of the Termite Zootermopsis angusticollis (2002) J. Appl. Microbiol., 92, pp. 32-40; Brune, A., Microbial symbioses in the digestive tract of lower termites (2011) Beneficial Microorganisms in Multicellular Life Forms, pp. 3-25. , E. Rosenberg, U. Gophna, Heidelberg Springer; Tokuda, G., Watanabe, H., Hidden cellulases in termites: Revision of an old hypothesis (2007) Biol. Lett., 3, pp. 336-339; Nobre, T., Aanen, D.K., Fungiculture or termite husbandry? The ruminant hypothesis (2012) Insects, 3, pp. 307-323; Zientz, E., Feldhaar, H., Stoll, S., Gross, R., Insights into the microbial world associated with ants (2005) Arch. Microbiol., 184, pp. 199-206; Aylward, F., Burnum, K.E., Scott, J.J., Suen, G., Tringe, S.G., Metagenomic and metaproteomic insights into bacterial communities in leaf-cutter ant fungus gardens (2012) ISME J., pp. 1-14; Cook, S.C., Davidson, D.W., Nutritional and functional biology of exudate-feeding ants (2006) Entomol. Exp. Appl., 118, pp. 1-10; He, H., Chen, Y., Zhang, Y., Wei, C., Bacteria associated with gut lumen of Camponotus japonicus Mayr (2011) Environ. 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Capinera, Springer Berlin; Richard, F.J., Mora, P., Errard, C., Rouland, C., Digestive capacities of leaf-cutting ants and the contribution of their cultivar to the degradation of plant material (2005) J. Comp. Physiol. B, 175, pp. 297-303; Ayre, G.L., The relationships between food and digestive enzymes in five species of ants (Hymenoptera: Formicidae) (1967) Can. Entomol., 99, pp. 408-411; Went, F.W., Wheeler, J., Wheeler, G.C., Feeding and digestion in some ants (Veromessor and Manica) (1972) BioScience, 22, pp. 82-88; Moller, I.E., De Fine Licht, H.H., Harholt, J., Willats, G.T., Boomsma, J.J., The dynamics of plant cell-wall polysaccharide decomposition in leaf-cutting ant fungus garden (2011) PloS ONE, 6, p. 17506 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 516 | ||
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| Author | Dejean, A.; Azémar, F.; Roux, O. | ||||
| Title | An invasive ant species able to counterattack marabunta raids | Type | Journal Article | ||
| Year | 2014 | Publication | Comptes Rendus Biologies | Abbreviated Journal |
C. R. Biol. |
| Volume | 337 | Issue | 7-8 | Pages | 475-479 |
| Keywords | Antipredation; Army ants; Colony mate recognition; Eciton; Pheidole; aggression; ant; article; bioassay; Eciton burchellii; Eciton hamatum; emulsion; insect society; mass fragmentography; Neotropics; nonhuman; Pheidole megacephala | ||||
| Abstract | In the Neotropics where it was introduced, the invasive ant Pheidole megacephala counterattacked raids by the army ants Eciton burchellii or E. hamatum. The Eciton workers that returned to their bivouac were attacked and spread-eagled and most of them killed by their outgoing colony mates. Little by little the zone where returning and outgoing Eciton workers encountered one another moved away from the Pheidole nest which was no longer attacked, so that most of the colony was spared. Using a water-based technique rounded out by bioassays, we show that Pheidole compounds were transferred onto the Eciton cuticle during the counterattacks, so that outgoing workers do not recognize returning colony mates, likely perceived as potential prey. Because P. megacephala is an introduced African species, this kind of protection, which cannot be the result of coevolutive processes, corresponds to a kind of by-product due to its aggressiveness during colony defence. © 2014 Académie des sciences. | ||||
| Address | IRD, MIVEGEC (IRD 224 CNRS 5290-UM1-UM2) Équipe BEES, 911, avenue Agropolis, 34394 Montpellier cedex 5, France | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier Masson SAS | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 17683238 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 1 September 2014; Coden: Crboc; Correspondence Address: Dejean, A.; CNRS UMR 8172, Écologie des Forêts de Guyane, BP 316, 97379 Kourou cedex, France; email: alain.dejean@wanadoo.fr | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 557 | ||
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