Project:BB|2109
- Title
- Adaptive significance of intraspecific diversity: paedomorphosis and cannibalism in polyphenic amphibians
- Acronym
- URL
- http://www.etho.ulg.ac.be/denoel/research-polyphenism.html
- StartDate
- 1997-10-01
- EndDate
- Amount
Abstract
Studying the fitness of alternative phenotypes consists at determining how adaptive are variants in populations and thus how these phenotypes can persist, disappear or form new species in ecosystems. Heterochronic polyphenisms (facultative paedomorphosis - cannibalism) are particularly interesting models to explore these questions because large morphological and physiological changes can be produced without deep genetic modifications. Facultative paedomorphosis occurs when larval traits (e.g. gills) are maintained in a part of the adult population, which is composed of paedomorphs and metamorphs. Cannibalistic polyphenism implies an alternative development associated with the ingestion of big organisms (overdevelopped head, long teeth).To better understand the evolution of these processes, we look at both proximate and ultimate factors and analyse age structures, growth patterns, spatial and feeding habits, predatory performances, environmental effects, metamorphosis rate, biogeography, and sexual behaviour. We also integrate these results into a conservation framework in order to understand declines and to point out the importance of protecting such cases of intraspecific diversity.
Keywords
paedomorphosis, heterochrony, polymorphism, polyphenism, sexual selection, mating tactics, life history traits, behavioural ecology, resource use, drying effect, food effect, Biogeography, Demography and life-history, Ecology, Ethology, Habitat management, restoration, Limnology and hydrobiology, Ponds and lakes, standing waters, Origins, Maintenance and Change of Biodiversity, Monitoring of Biodiversity, Conservation, Restoration and Sustainable Use of Biodiversity, Inland Water Biodiversity, Invasive Species and their Effect on Biodiversity, phenotypic plasticity, feeding performance, biogeography, conservation, pond, habitat fragmentation, disease, behavioral ecology, resource use, France, Italy, Greece, United States of America, USA, Alps, Larzac, Liège, Metazoa, Vertebrata, Amphibia, Caudata, Mesotriton alpestris, Lissotriton helveticus, Salamandridae, Ambystomatidae, Ambystoma tigrinum, Salamandra salamandra, triton alpestre, Alpine newt
Classifications
Population and Ecological Genetics {Research discipline}
Freshwater Ecology {Research discipline}
Landscape Ecology {Research discipline}
Life Histories (incl. Population Ecology) {Research discipline}
Sociobiology and Behavioural Ecology {Research discipline}
Conservation and Biodiversity {Research discipline}
Biogeography {Research discipline}
Global Change Biology {Research discipline}
Veterinary Sciences {Research discipline}
Environmental Management and Rehabilitation {Research discipline}
Wildlife and Habitat Management {Research discipline}
Environmental Impact Assessment {Research discipline}
Conservation {Research discipline}
Land and Parks Management {Research discipline}
Species {Integration level}
National {Cooperation status}
European (EU) {Cooperation status}
International (non-EU) {Cooperation status}
Origins, Maintenance and Change of Biodiversity {Research orientation}
Monitoring of Biodiversity {Research orientation}
Conservation, Restoration and Sustainable use of Biodiversity {Research orientation}
Northern Europe {Geographical scope}
Southwestern Europe {Geographical scope}
Southeastern Europe {Geographical scope}
South-Central U.S.A. {Geographical scope}
Northern South America {Geographical scope}
Agricultural {Habitat type}
Dry and Sub-humid Lands {Habitat type}
Inland Waters {Habitat type}
Mountain {Habitat type}
General Measures for Conservation and Sustainable Use {Research purpose}
Technical and Scientific Cooperation {Research purpose}
Identification and Monitoring {Research purpose}
In-situ Conservation {Research purpose}
Research and Training {Research purpose}
Impact Assessment and Minimizing Adverse Impacts {Research purpose}
Amphibia {Taxonomical scope}
Fundings
| Name | Role | Amount |
|---|---|---|
| FRFC | unknown | |
| FRIA | unknown | |
| unknown |
People
| Name | Role | Start | End |
|---|---|---|---|
| Denoël, Mathieu | promotor | 1996-10-01 |
Orgunits
| Name | Role | Start | End |
|---|---|---|---|
| Laboratoire d'éthologie des poissons et amphibiens | unknown |
Publications
| Reference | Role |
|---|---|
| Denoël M., Hervant F., Schabetsberger R. & Joly P. 2002. Short- and long-term advantages of an alternative ontogenetic pathway. Biological Journal of the Linnean Society, 77: 105-112. | author |
| Denoël M., Poncin P. & Ruwet J.C. 2001. Sexual compatibility between two heterochronic morphs in Triturus alpestris (Caudata, Salamandridae). Animal Behaviour, 62: 559-566. | author |
| Denoël M. & Joly P. 2001. Adaptive significance of facultative paedomorphosis in Triturus alpestris (Amphibia, Caudata): resource partitioning in an Alpine lake. Freshwater Biology, 46: 1387-1396. | author |
| Denoël M., Duguet R., Dzukic G., Kalezic M. & Mazzotti S. 2001. Biogeography and ecology of paedomorphosis in Triturus alpestris (Amphibia, Caudata). Journal of Biogeography, 28: 1271-1280. | author |
| Denoël M. & Poncin P. 2001. The effect of food on growth and metamorphosis of paedomorphs Triturus alpestris apuanus. Archiv für Hydrobiologie, 152: 661-670. | author |
| Denoël M. & Joly P. 2001. Size-related predation reduces intramorph competition in paedomorphic Alpine newts. Canadian Journal of Zoology, 79: 943-948. | author |
| Denoël M. & Joly P. 2000. Neoteny and Progenesis as two heterochronic processes involved in paedomorphosis in Triturus alpestris (Amphibia, Caudata). Proceedings of the Royal Society of London, Series B, Biological Sciences, 267: 1481-1485. | author |
| Denoël M., Joly P. & Poncin P. 1999. Facultative paedomorphosis in the Alpine newt, Triturus a. alpestris: feeding habits and habitat use in an Alpine lake. Pp. 89-94 in "Current studies in Herpetology" (Miaud C. & Guyetant R., eds). | author |
| Denoël M., Lena J.P. & Joly P. 2007. Morph switching in Triturus alpestris (Amphibia, Caudata). Evolutionary Ecology, 21: 325-335. | author |
| Denoël M. 2007. Priority areas of intraspecific diversity: Larzac, a global hotspot for facultative paedomorphosis in amphibians. Animal Conservation 10: 110-118. | author |
| Denoël M. 2006. Seasonal variation in facultatively paedomorphic populations of the palmate newt Triturus helveticus. Acta oecologica 29 : 165-170. | author |
| Denoël M., Whiteman H.H. & Wissinger S. 2006. Temporal shift of diet in alternative cannibalistic morphs of the tiger salamander. Biological Journal of the Linnean Society 89: 373-382. | author |
| Denoël M., Joly P. & Whiteman H.H. 2005. Evolutionary ecology of facultative paedomorphosis in newts and salamanders. Biological Reviews 80: 663-671. | author |
| Denoël M., Dzukic G. & Kalezic M.L. 2005. Effect of widespread fish introductions on paedomorphic newts in Europe. Conservation Biology 19: 162-170. | author |
| Denoël M. 2005. Habitat partitioning in facultatively paedomorphic populations of palmate newts Triturus helveticus. Ambio 34: 470-471. | author |
| Denoël M. 2004. Distribution and characteristics of aquatic habitats of newts and yellow-bellied toads in the district of Ioannina (Epirus, Greece). Herpetozoa 17: 49-64. | author |
| Denoël M. 2004. Feeding performance in heterochronic Alpine newts is consistent with trophic niche and maintenance of polymorphism. Ethology 110: 127-136. | author |
| Denoël M., Schabetsberger R. & Joly P. 2004. Trophic specializations in alternative heterochronic morphs. Naturwissenschaften 91: 81-84. | author |
| Denoël M. 2003. How do paedomorphic newts cope with lake drying? Ecography 26: 405-410. | author |
| Denoël M. 2003. Effect of rival males on the courtship of paedomorphic and metamorphic Triturus alpestris. Copeia 2003: 618-623. | author |
| Denoël M. 2003. Avantages sélectifs d'un phénotype hétérochronique. Eco-éthologie des populations pédomorphiques du Triton alpestre, Triturus alpestris (Amphibia, Caudata). Cahiers d'Ethologie 21 (Collection enquêtes et dossiers : 27): 327 pages. | author |
| Denoël M. & Andreone F. 2003. Trophic habits and aquatic microhabitat use in gilled immature, paedomorphic and metamorphic Alpine newts (Triturus alpestris apuanus) in a pond in central Italy. Belgian Journal of Zoology 133: 95-102. | author |
| Denoël M. & Schabetsberger R. 2003. Resource partitioning in two heterochronic populations of Greek Alpine newts, Triturus alpestris veluchiensis. Acta Oecologica 24: 55-67 | author |
| Jacob J.P., Percsy C., De Wavrin H., Graitson E., Kinet T., Denoël M., Paquay M. & Percsy N. 2007. Amphibiens et reptiles de Wallonie. Série Faune-Flore Habitat 2. Aves et Région Wallonne, Namur : 386 pages. | author |
created:2011-12-14 14:18:59 UTC, source:biodiv