Alain Dejean

Summary

Country: France

Publications

  1. ncbi Territorial aggressiveness and predation: two possible origins of snapping in the ant Plectroctena minor
    Alain Dejean
    Laboratoire d écologie terrestre UMR CNRS 5552, Universite Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, France
    C R Biol 325:819-25. 2002
  2. ncbi Insect behaviour: arboreal ants build traps to capture prey
    Alain Dejean
    Laboratoire d Evolution et Diversité Biologique, UMR CNRS 5174, Universite Toulouse III, 31062 Toulouse, France
    Nature 434:973. 2005
  3. doi The raiding success of Pheidole megacephala on other ants in both its native and introduced ranges
    Alain Dejean
    CNRS Guyane UPS 2561 and UMR CNRS 5174, Résidence Le Relais, Cayenne, France
    C R Biol 331:631-5. 2008
  4. ncbi An invasive ant species able to counterattack marabunta raids
    Alain Dejean
    CNRS UMR 8172, Ecologie des Forêts de Guyane, BP 316, 97379 Kourou Cedex, France Université de Toulouse, UPS, INP, laboratoire Écologie fonctionnelle et Environnement Ecolab, 118, route de Narbonne, 31062 Toulouse, France Electronic address
    C R Biol 337:474-9. 2014
  5. ncbi Nesting habits shape feeding preferences and predatory behavior in an ant genus
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, BP 316, 97379, Kourou Cedex, France
    Naturwissenschaften 101:323-30. 2014
  6. doi Altruism during predation in an assassin bug
    Alain Dejean
    Ecologie des Forêts de Guyane, Campus agronomique, BP 316, 97379, Kourou Cedex, France
    Naturwissenschaften 100:913-22. 2013
  7. pmc Predation success by a plant-ant indirectly favours the growth and fitness of its host myrmecophyte
    Alain Dejean
    Universite de Toulouse, UPS, Ecolab, Toulouse, France
    PLoS ONE 8:e59405. 2013
  8. pmc Climate change impact on neotropical social wasps
    Alain Dejean
    CNRS UMR 8172, Ecologie des Forêts de Guyane, Campus agronomique, BP 709 Kourou, France
    PLoS ONE 6:e27004. 2011
  9. doi Does exogenic food benefit both partners in an ant-plant mutualism? The case of Cecropia obtusa and its guest Azteca plant-ants
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Kourou Cedex, France
    C R Biol 335:214-9. 2012
  10. pmc The ecology and feeding habits of the arboreal trap-jawed ant Daceton armigerum
    Alain Dejean
    Ecologie des Forêts de Guyane, Campus agronomique, Kourou, France
    PLoS ONE 7:e37683. 2012

Collaborators

Detail Information

Publications48

  1. ncbi Territorial aggressiveness and predation: two possible origins of snapping in the ant Plectroctena minor
    Alain Dejean
    Laboratoire d écologie terrestre UMR CNRS 5552, Universite Paul Sabatier, 118, route de Narbonne, 31062 Toulouse, France
    C R Biol 325:819-25. 2002
    ..We discuss the adaptive value of snapping for hunting in galleries...
  2. ncbi Insect behaviour: arboreal ants build traps to capture prey
    Alain Dejean
    Laboratoire d Evolution et Diversité Biologique, UMR CNRS 5174, Universite Toulouse III, 31062 Toulouse, France
    Nature 434:973. 2005
    ..To our knowledge, the collective creation of a trap as a predatory strategy has not been described before in ants...
  3. doi The raiding success of Pheidole megacephala on other ants in both its native and introduced ranges
    Alain Dejean
    CNRS Guyane UPS 2561 and UMR CNRS 5174, Résidence Le Relais, Cayenne, France
    C R Biol 331:631-5. 2008
    ..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...
  4. ncbi An invasive ant species able to counterattack marabunta raids
    Alain Dejean
    CNRS UMR 8172, Ecologie des Forêts de Guyane, BP 316, 97379 Kourou Cedex, France Université de Toulouse, UPS, INP, laboratoire Écologie fonctionnelle et Environnement Ecolab, 118, route de Narbonne, 31062 Toulouse, France Electronic address
    C R Biol 337:474-9. 2014
    ..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. ..
  5. ncbi Nesting habits shape feeding preferences and predatory behavior in an ant genus
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, BP 316, 97379, Kourou Cedex, France
    Naturwissenschaften 101:323-30. 2014
    ....
  6. doi Altruism during predation in an assassin bug
    Alain Dejean
    Ecologie des Forêts de Guyane, Campus agronomique, BP 316, 97379, Kourou Cedex, France
    Naturwissenschaften 100:913-22. 2013
    ..By improving the regularity of feeding for each nymph, it likely regulates nymphal development, synchronizing molting and subsequently limiting cannibalism...
  7. pmc Predation success by a plant-ant indirectly favours the growth and fitness of its host myrmecophyte
    Alain Dejean
    Universite de Toulouse, UPS, Ecolab, Toulouse, France
    PLoS ONE 8:e59405. 2013
    ..e., more fruits produced and more flowers that matured into fruit). This study highlights the importance of myrmecotrophy on host plant fitness and the stability of ant-myrmecophyte mutualisms...
  8. pmc Climate change impact on neotropical social wasps
    Alain Dejean
    CNRS UMR 8172, Ecologie des Forêts de Guyane, Campus agronomique, BP 709 Kourou, France
    PLoS ONE 6:e27004. 2011
    ..These results imply that Neotropical social wasps can be regarded as bio-indicators because they highlight the impact of climatic changes not yet perceptible in plants and other animals...
  9. doi Does exogenic food benefit both partners in an ant-plant mutualism? The case of Cecropia obtusa and its guest Azteca plant-ants
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Kourou Cedex, France
    C R Biol 335:214-9. 2012
    ..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...
  10. pmc The ecology and feeding habits of the arboreal trap-jawed ant Daceton armigerum
    Alain Dejean
    Ecologie des Forêts de Guyane, Campus agronomique, Kourou, France
    PLoS ONE 7:e37683. 2012
    ..e., Coccidae, Pseudococcidae, Membracidae and Aethalionidae). Through group-hunting, short-range recruitment and spread-eagling prey, workers can capture a wide range of prey (up to 94.12 times the mean weight of foraging workers)...
  11. doi When attempts at robbing prey turn fatal
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, BP 316, 97379, Kourou Cedex, France
    Naturwissenschaften 99:579-82. 2012
    ..We conclude that in this situation, previously captured prey attract potential cleptobionts that are captured in turn in most of the cases...
  12. doi The hunter becomes the hunted: when cleptobiotic insects are captured by their target ants
    Alain Dejean
    Écologie des Forêts de Guyane UMR CNRS 8172, CNRS, Campus agronomique, Kourou Cedex, France
    Naturwissenschaften 99:265-73. 2012
    ..For A. pallens, we show that the number of individuals captured during attempts at cleptobiosis increases with the size of the Allomerus' prey...
  13. doi Nest relocation and high mortality rate in a Neotropical social wasp: Impact of an exceptionally rainy La Niña year
    Alain Dejean
    CNRS UMR 8172 Ecofog, Ecologie des Forêts de Guyane, Campus agronomique, BP 709, 97387 Kourou Cedex, France
    C R Biol 333:35-40. 2010
    ....
  14. pmc Prey capture behavior in an arboreal African ponerine ant
    Alain Dejean
    Centre National de la Recherche Scientifique, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, Kourou, France
    PLoS ONE 6:e19837. 2011
    ..The same behavior is used against competing ants, including territorially-dominant arboreal species that retreat further and further away, so that the P. conradti finally drive them from large, sugary food sources...
  15. pmc Arboreal ants use the "Velcro(R) principle" to capture very large prey
    Alain Dejean
    Centre National de la Recherche Scientifique, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, Kourou, France
    PLoS ONE 5:e11331. 2010
    ....
  16. doi Predation and aggressiveness in host plant protection: a generalization using ants from the genus Azteca
    Alain Dejean
    Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, 97379, Kourou Cedex, France
    Naturwissenschaften 96:57-63. 2009
    ..Because A. alfari and A. ovaticeps discard part of the insects they kill, we deduced that the workers' predatory behaviour and territorial aggressiveness combine in the biotic defence of their host tree...
  17. ncbi Nest site selection and induced response in a dominant arboreal ant species
    Alain Dejean
    UPS 2561, CNRS Guyane, 16 avenue André Aron, 97300 Cayenne, France
    Naturwissenschaften 95:885-9. 2008
    ..These results show that contrary to what was previously believed, induced responses are also found in territorially dominant arboreal ants and so are not limited to the specific associations between myrmecophytes and plant ants...
  18. doi A temporary social parasite of tropical plant-ants improves the fitness of a myrmecophyte
    Alain Dejean
    Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, 97379, Kourou Cedex, France
    Naturwissenschaften 97:925-34. 2010
    ..Yet, contrarily to mutualistic Azteca, when host tree development does not keep pace with colony growth, A. andreae workers forage on surrounding plants; the colonies can even move to a non-Cecropia tree...
  19. doi The hunting behavior of the African ponerine ant Pachycondyla pachyderma
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, 97379 Kourou Cedex, France
    Behav Processes 86:169-73. 2011
    ..Workers retrieve small prey solitarily while, for large geophilomorphs and scolopendromorphs, nestmates can be recruited at short range or even at long range through tandem running...
  20. ncbi The predatory behavior of Pheidole megacephala
    Alain Dejean
    CNRS Guyane UPS 2561 and UMR CNRS 5174, Résidence Le Relais, 16, avenue André Aron, 97300 Cayenne, France
    C R Biol 330:701-9. 2007
    ..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...
  21. pmc Inherited biotic protection in a neotropical pioneer plant
    Alain Dejean
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, Kourou, France
    PLoS ONE 6:e18071. 2011
    ....
  22. pmc Spatial distribution of dominant arboreal ants in a malagasy coastal rainforest: gaps and presence of an invasive species
    Alain Dejean
    Ecologie des Forêts de Guyane, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8172, Campus agronomique, BP 709, Kourou, France
    PLoS ONE 5:e9319. 2010
    ..albipes, and that the penetration of this species further inland might be facilitated by the low density of native, territorially dominant arboreal ants normally able to limit its progression...
  23. doi Dynamics of the association between a long-lived understory myrmecophyte and its specific associated ants
    Jerome Orivel
    CNRS, UMR Ecologie des Forêts de Guyane, Campus agronomique, Kourou, France
    Oecologia 165:369-76. 2011
    ....
  24. pmc Specific, non-nutritional association between an ascomycete fungus and Allomerus plant-ants
    Mario X Ruiz-González
    UPS, Laboratoire Evolution et Diversité Biologique, Universite de Toulouse, 118 route de Narbonne, 31062 Toulouse, France
    Biol Lett 7:475-9. 2011
    ..Altogether, these results suggest that such an interaction might represent an as-yet undescribed type of specific association between ants and fungus in which the ants cultivate fungal mycelia to strengthen their hunting galleries...
  25. doi An efficient protocol for isolating melanised chaetothyrialean anamorphic fungi associated with plant-ants
    Mario X Ruiz-González
    Universite de Toulouse, UPS, UMR5174 EDB Laboratoire Évolution et Diversité Biologique, Toulouse, France
    J Basic Microbiol 53:98-100. 2013
    ..Here, we describe an easy-to-use protocol for obtaining pure cultures by using cotton as a first substrate. We have further found by means of fluorescent stains that nuclei concentrate either in young hyphae or in the tips of the hyphae...
  26. ncbi Ant species diversity in the 'Grands Causses' (Aveyron, France): In search of sampling methods adapted to temperate climates
    Sarah Groc
    Laboratoire d évolution et diversité biologique UMR CNRS 5174, Université Toulouse 3, Bâtiment 4R3, 118, route de Narbonne, 31062 Toulouse Cedex 9, France
    C R Biol 330:913-22. 2007
    ..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...
  27. ncbi How to coexist with fire ants: the roles of behaviour and cuticular compounds
    Olivier Roux
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, 97387 Kourou Cedex, France
    Behav Processes 98:51-7. 2013
    ..The cuticular compounds from three species, particularly E. burchellii, triggered greater aggressiveness by S. saevissima workers, while those from the other species did not. ..
  28. pmc Food-web structure in relation to environmental gradients and predator-prey ratios in tank-bromeliad ecosystems
    Olivier Dézerald
    EcoFoG, Ecologie des Forêts de Guyane, CNRS UMR 8172, Kourou, France
    PLoS ONE 8:e71735. 2013
    ..While linkage density and nestedness were lower in bromeliads in the forest than in open areas, experiments are needed to confirm a trend for lower food-web stability in the understorey of primary forests. ..
  29. ncbi Ants mediate the structure of phytotelm communities in an ant-garden bromeliad
    Régis Céréghino
    Universite de Toulouse, UPS, INPT, Ecolab, 118 route de Narbonne, 31062 Toulouse, France
    Ecology 91:1549-56. 2010
    ..Because macroinvertebrates constitute an important part of animal production in all ecosystem types, further investigations should address the functional implications of such indirect effects...
  30. pmc Ant species identity mediates reproductive traits and allocation in an ant-garden bromeliad
    Celine Leroy
    CNRS, UMR Ecologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, F 97379 Kourou cedex, France
    Ann Bot 109:145-52. 2012
    ....
  31. ncbi Venom toxicity and composition in three Pseudomyrmex ant species having different nesting modes
    Axel Touchard
    CNRS, UMR Ecologie des Forêts de Guyane EcoFoG, Campus agronomique, BP 316, 97379 Kourou Cedex, France
    Toxicon 88:67-76. 2014
    ..penetrator venom has evolved in an environment where trees, defoliating insects, browsing mammals and ants live in equilibrium, likely explaining the diversity of the peptide structures. ..
  32. ncbi Ants mediate foliar structure and nitrogen acquisition in a tank-bromeliad
    Celine Leroy
    EcoFoG, Ecologie des Forêts de Guyane, UMR CNRS 8172, Campus agronomique, 97379 Kourou Cedex, France
    New Phytol 183:1124-33. 2009
    ..This study enhances our understanding of the dynamics of biodiversity, and shows how ant-plant interactions can have trophic consequences and thus influence the architecture of the interacting plant via a complex feedback loop...
  33. pmc An overlooked mandibular-rubbing behavior used during recruitment by the African weaver ant, Oecophylla longinoda
    Olivier Roux
    Ecologie des Forêts de Guyane, Centre National de la Recherche Scientifique Unite Mixte de Recherche, Kourou, France
    PLoS ONE 5:e8957. 2010
    ..So, by rubbing their mandibles onto the substrate, the workers probably spread a secretion from these glands that is involved in nestmate recruitment...
  34. ncbi Sugary food robbing in ants: a case of temporal cleptobiosis
    Freddie Jeanne Richard
    Laboratoire d evolution et diversité biologique CNRS UMR 5174, Université Toulouse 3, 118, route de Narbonne, 31062 Toulouse, France
    C R Biol 327:509-17. 2004
    ..This relationship, that appears to be a typical case of interspecific cleptobiosis, whose expression varies during the daytime, demonstrates for the first time sugary-food robbing, instead of prey robbing, in ants...
  35. doi A type of unicoloniality within the native range of the fire ant Solenopsis saevissima
    Jean Michel Martin
    Ecologie des Forêts de Guyane, UMR CNRS, Campus agronomique, Kourou, France
    C R Biol 334:307-10. 2011
    ..These large "colonial groups" enhances the threat occasioned by S. saevissima for both agriculture and the environment...
  36. pmc Caterpillars and fungal pathogens: two co-occurring parasites of an ant-plant mutualism
    Olivier Roux
    CNRS, Écologie des Forêts de Guyane UMR CNRS 8172, Campus agronomique, Kourou, France
    PLoS ONE 6:e20538. 2011
    ..The cost of greater FB production plus the presence of the pathogenic fungus likely affect tree growth...
  37. ncbi Formation and structure of food bodies in Cordia nodosa (Boraginaceae)
    Pascal Jean Solano
    Laboratoire d évolution et diversité biologique UMR CNRS 5174, Université Toulouse 3, 118, route de Narbonne, 31062 Toulouse Cedex, France
    C R Biol 328:642-7. 2005
    ..The amalgam of these two functions, distinct in other known cases, is discussed taking into account the origin of FBs and extrafloral nectaries...
  38. ncbi Elucidation of the unexplored biodiversity of ant venom peptidomes via MALDI-TOF mass spectrometry and its application for chemotaxonomy
    Axel Touchard
    CNRS, UMR Ecologie des Forêts de Guyane EcoFoG, Campus agronomique, BP 316, 97379 Kourou Cedex, France Electronic address
    J Proteomics 105:217-31. 2014
    ..This chemotaxonomic tool can therefore contribute to more rapid species identification and more accurate taxonomies...
  39. pmc Potential sources of nitrogen in an ant-garden tank-bromeliad
    Celine Leroy
    CNRS, UMR Ecologie des Forêts de Guyane, Kourou, France
    Plant Signal Behav 4:868-70. 2009
    ..mertensii leaves in a kind of plant-invertebrate-plant feedback loop...
  40. ncbi Comparative structure and ontogeny of the foliar domatia in three neotropical myrmecophytes
    Celine Leroy
    Centre National de la Recherche Scientifique, Unité Mixte de Recherche Ecologie des Forêts de Guyane, Campus Agronomique 97379 Kourou cedex, France
    Am J Bot 97:557-65. 2010
    ....
  41. ncbi Vertical stratification of the termite assemblage in a neotropical rainforest
    Yves Roisin
    Behavioural and Evolutionary Ecology, CP 160 12, Universite Libre de Bruxelles, avenue F D Roosevelt 50, 1050, Brussels, Belgium
    Oecologia 149:301-11. 2006
    ....
  42. ncbi Influence of interspecific competition on the recruitment behavior and liquid food transport in the tramp ant species Pheidole megacephala
    Alain Dejean
    Laboratoire d Evolution et Diversité Biologique, UMR CNRS 5174, Universite Toulouse III, France
    Naturwissenschaften 92:324-7. 2005
    ..Their flexibility to use or not use the latter technique, based on the situation, corroborates other reports that Pheidole soldiers have a relatively large behavioral repertoire...
  43. ncbi Wasps robbing food from ants: a frequent behavior?
    Louis LaPierre
    Department of Biology, Lower Columbia College, 1600 Maple Street, Longview, WA 98632, USA
    Naturwissenschaften 94:997-1001. 2007
    ..We suggest that these interactions are more common than previously thought...
  44. ncbi The predatory behaviour of a tramp ant species in its native range
    Martin Kenne
    Département de Biologie des Organismes Animaux, Faculte des Sciences, Université de Douala, BP 24157, Douala, Cameroon
    C R Biol 328:1025-30. 2005
    ..Then they recruit nestmates at short-range; all together they spread-eagle the prey and retrieve them whole...
  45. ncbi Territorial aggressiveness on the arboreal ant Azteca alfari by Camponotus blandus in French Guiana due to behavioural constraints
    Melanie McClure
    Biology Department, Concordia University, Montreal H4B 1R6, Quebec, Canada
    C R Biol 331:663-7. 2008
    ..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...
  46. pmc Comparison between the anatomical and morphological structure of leaf blades and foliar domatia in the ant-plant Hirtella physophora (Chrysobalanaceae)
    Celine Leroy
    Centre Universitaire de Formation et de Recherche Jean François Champollion, Place de Verdun, 81012 Albi, France
    Ann Bot 101:501-7. 2008
    ..In Hirtella physophora (Chrysobalanaceae), the focal species of this study, the ant-domatia consist of leaf pouches formed when the leaf rolls over onto itself to create two spheres at the base of the blade...
  47. ncbi The ladybird Thalassa saginata, an obligatory myrmecophile of Dolichoderus bidens ant colonies
    Jerome Orivel
    Laboratoire d Evolution et Diversité Biologique, UMR CNRS 5174, Universite Toulouse III, Bat 4R3, 118 route de Narbonne, 31062 Toulouse Cedex 4, France
    Naturwissenschaften 91:97-100. 2004
    ..saginata larvae into the ant colonies is achieved by mimicking the cuticular patterns of the ants' brood. Moreover, the larvae secrete substances from their hairs and anal gland that are likely to enhance their attractiveness...
  48. ncbi Coexistence between Cyphomyrmex ants and dominant populations of Wasmannia auropunctata
    Julien Grangier
    Laboratoire Evolution et Diversité Biologique, UMR CNRS 5174, Universite Toulouse III, 31062 Toulouse Cedex 9, France
    Behav Processes 74:93-6. 2007
    ..This dear-enemy phenomenon may result from a process of habituation contributing to the ants' ability to coexist over the long term...