Evolutionary Demography Group

Members

Keywords: Aging - Behavioural Ecology - Climate Change - Conservation Biology - Comparative analyses - Demography - Eco-Evolutionary dynamics - Ecotoxicology - Ecophysiology - Epidemiology – Integrative Biology - Life History Traits - Movement Ecology - Parasitism - Population Dynamics - Wildlife Management

Overview: Our research aims to understand how ecology and evolution shape both the demography and the health of vertebrate populations in the wild, and in turn, how the demographic processes are determining the strength of trait selection. To reach these objectives, we are bridging conceptual and methodological advances from population ecology, evolution, demography, epidemiology and statistics. As our study models are vertebrate species with high societal value, our research projects are often led in collaboration with the Office Français de la Biodiversité (OFB) and have an explicit applied component to improve the exploitation or the conservation of the targeted species.

Research axes:

  • Quantifying the amount and the shape of individual heterogeneity in vertebrate populations in the wild, as well as its role in demographic and eco-evolutionary processes (with a special focus on mammals)
  • Identifying and assessing the relative influence of the environmental (i.e. weather conditions, population density, habitat quality, predation, diseases, interspecific competition and anthropic pressure), evolutionary (e.g. phylogenetic inertia, lifestyle, size, and life history strategy), and individual (e.g. age, sex, or size) attributes that shape the diversity of individual trajectories, within and among populations of vertebrates
  • Identifying population responses to global change, from phenotypic traits to demographic outputs such as population growth, age-structure and generation time
  • Quantifying the magnitude of the sex-differences in trait-specific trajectories (with a special focus on the senescence process) and identifying the eco-evolutionary roots of these differences
  • Identifying the genetic and physiological markers of aging for mammalian populations in the wild
  • Exploring the evolutionary causes and consequences of actuarial and reproductive aging in the wild
  • Assessing the health, demographic, and evolutionary implications of physiological stress at the individual level and quantifying their impact on population dynamics
  • Determining the physiological and demographic implications of toxic pollutants for mammals in the wild
  • Measuring health, behavioral, and demographic consequences of parasitism exposure
  • Providing tools for the development of reliable predictions for population forecast of mammals with a high societal value


Biological models: Our research mostly relies on the long-term monitoring of mammalian populations in the wild. Thanks to a long-term collaboration with the OFB, we are collecting individual longitudinal data on a wide array of traits for more than 40 years for roe deer (Chizé and Trois-Fontaines study areas, France). Other ongoing long-term programs are focused on the Alpine marmot (Réserve de la Grande Sassière, France), Mouflon (Caroux-Espinouse massif, France), Wild boar (Châteauvillain, France), and Giraffe (Hwange, Zimbabwe).

Publications

Display of 661 to 690 publications on 755 in total

Population density and sex do not influence fine-scale natal dispersal in roe deer

J.-M. Gaillard, A.J.M. Hewison, P. Kjellander, N. Pettorelli, C. Bonenfant, B. van Moorter...

Proceedings of the Royal Society B: Biological Sciences . 275 : 2025-2030

Journal article

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The timing of male reproductive effort relative to female ovulation in a capital breeder

A. Mysterud, C. Bonenfant, L.E. Loe, R. Langvatn, N.G. Yoccoz, / Stenseth

Journal of Animal Ecology . 77(3) : 469-477

Journal article

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Antibodies against Salmonella is associated with reduced reproductive success in female alpine chamois (rupicapra rupicapra)

M. Pioz, A. Loison, Patricia Gibert, J.-M. Jullien, Marc Artois, Emmanuelle Gilot-Fromont

Canadian Journal of Zoology . 86 : 1111-1120

Journal article

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Diseases and reproductive success in a wild mammal: example in the alpine chamois.

Maryline Pioz, Anne Loison, Dominique Gauthier, Philippe Gibert, Jean-Michel Jullien, Marc Artois...

Oecologia . 155 ( 4 ) : 691-704

DOI: 10.1007/s00442-007-0942-5

Journal article

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Density-dependent body condition and recruitment in a tropical ungulate

N. Gaidet, Jean-Michel Gaillard

Canadian Journal of Zoology . 86 ( 1 ) : 24-32

Journal article

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Determinants of seasonal variation in activity patterns of mouflon

G. Bourgoin, M. Garel, B. van Moorter, D. Dubray, D. Maillard, E. Marty...

Canadian Journal of Zoology . 86 : 1410-1418

Journal article

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The genetic similarity between pair members influences the frequency of extrapair paternity in alpine marmots

Aurélie Cohas, N.G. Yoccoz, C. Bonenfant, B. Goossens, C. Genton, M. Galan...

Animal Behaviour . 76 : 87-95

Journal article

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Vertebrate Ageing: An Evolutionary Process with a Genetic Basis?

J.-M. Gaillard, C. Bonenfant

Current Biology . 18 : R130-R131

Journal article

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Spatial distribution of soil contamination by Toxoplasma gondii in relation to cat defecation behaviour in an urban area.

Eve Afonso, Mélissa Lemoine, Marie-Lazarine Poulle, Marie-Caroline Ravat, Stéphane Romand, Philippe Thulliez...

International Journal for Parasitology . 38 ( 8-9 ) : 1017-23

DOI: 10.1016/j.ijpara.2008.01.004

Journal article

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Toxoplasmosis in corsican wild boar : a first epidemiological study

Céline Richomme, Eve Afonso, Vincent Tolon, Lénaig Halos, Annie Alliot, Catherine Perret...

10. European Multicolloquium of Parasitology . : 1 p.

Poster

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Antibodies against Salmonella is associated with reduced reproductive success in female alpine chamois (Rupicapra rupicapra)

Maryline Pioz, Anne Loison, Philippe Gibert, Jean-Michel Jullien, Marc Artois, Emmanuelle Gilot-Fromont

Canadian Journal of Zoology . 86 ( 10 ) : 1111-1120

DOI: 10.1139/Z08-089

Journal article

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Heterozygosity and parasite intensity: lung parasites in the water frog hybridization complex

Pierre Joly, Vanessa Guesdon, Emmanuelle Gilot-Fromont, Sandrine Plénet, Odile Grolet, Jean-François Guégan...

Parasitology . 135 ( 1 ) : 95-104

DOI: 10.1017/S0031182007003599

Journal article

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Indicators of ecological change: new tools for managing populations of large herbivores

Nicolas Morellet, Jean-Michel Gaillard, A.J. Mark Hewison, Philippe Ballon, Yves Boscardin, Patrick Duncan...

Journal of Applied Ecology . 44 ( 3 ) : 634-643

DOI: 10.1111/j.1365-2664.2007.01307.x

Journal article

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Are extra-pair young better than within-pair young? A comparison of survival and dominance in alpine marmot

A. Cohas, C. Bonenfant, J.-M. Gaillard, Dominique Allainé

Journal of Animal Ecology . 76 : 771-781

Journal article

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Importance of a pilot study for non-invasive genetic sampling: genotyping errors and population size estimation in red deer

N. Valiere, C. Bonenfant, C. Toigo, G. Luikart, J. M. Gaillard, F. Klein

Conservation Genetics . 8 ( 1 ) : 69-78

DOI: 10.1007/s10592-006-9149-2

Journal article

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Evidence for a trade-off between early growth and tooth wear in Svalbard reindeer

V. Veiberg, A. Mysterud, E. Bjørkvoll, R. Langvatn, L.E. Loe, J. Irvine...

Journal of Animal Ecology . 76(6) : 1139-1148

Journal article

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Acticity pattern of arctic reindeer in a predator-free environment: no need to keep a daily rythm

L. Loe, C. Bonenfant, A. Mysterud, T. Severinsen, N.A. Oristland, R. Langvatn...

Oecologia . 152 : 617-624

Journal article

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Prevalence of Toxoplasma gondii in small mammals from the Ardennes region, France.

Eve Afonso, Marie-Lazarine Poulle, Mélissa Lemoine, Isabelle Villena, Dominique Aubert, Emmanuelle Gilot-Fromont

Folia Parasitologica . 54 ( 4 ) : 313-314

DOI: 10.14411/fp.2007.041

Journal article

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Lifetime reproductive success and composition of the home range in large herbivore.

P.D. Mc Loughlin, Jean-Michel Gaillard, M.S. Boyce, Christophe Bonenfant, F. Messier, Patrick Duncan...

Ecology . 88 ( 12 ) : 3192-3201

DOI: 10.1890/06-1974.1

Journal article

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Transmission of a pestivirus infection in a population of Pyrenean chamois

Maryline Pioz, Anne Loison, Philippe Gibert, Dominique Dubray, Pierre Menaut, Bertrand Le Tallec...

Veterinary Microbiology . 119 ( 1 ) : 19-30

DOI: 10.1016/j.vetmic.2006.09.001

Journal article

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Chapter 11. Managing Large Herbivores in Theory and Practice: Is the Game the Same for Browsing and Grazing Species?

Jean - Michel Gaillard, P. Duncan, Van Wieren S.E., A. Loison, F. Klein, D. Maillard

The Ecology of Browsing and Grazing . : 293-307

Book chapter

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Testing sexual segregation and aggregation: old ways are best

Christophe Bonenfant, Jean-Michel Gaillard, Anne Loison, Manuela Royer, Daniel Chessel

Ecology . 88 ( 12 ) : 3202-3208

DOI: 10.1890/07-0129.1

Journal article

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Toxoplasmosis in prey species and consequences for prevalence in feral cats: not all prey species are equal.

E. Afonso, P. Thulliez, D. Pontier, Emmanuelle Gilot-Fromont

Parasitology . 134 ( Pt.14 ) : 1963-71

DOI: 10.1017/S0031182007003320

Journal article

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Prevalence of Toxoplasma Gondii in small mammals from the ardennes region France

Eve Afonso, M.-L. Poulle, M. Lemoine, I. Villena, D. Aubert, Emmanuelle Gilot-Fromont

Folia Parasitologica . 54 : 313-314

Journal article

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Climate changes and post-nuptial migration strategy by two reedbed passerines

Guillaume Péron, Pierre-Yves Henry, Pascal Provost, Olivier Dehorter, Romain Julliard

Climate Research . 35 : 147-157

DOI: 10.3354/cr00721

Journal article

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How does environmental variation influence body mass, body size, and body condition? Roe deer as a case study.

Carole Toïgo, Jean-Michel Gaillard, Guy van Laere, Mark Hewison, Nicolas Morellet

Ecography . 29 ( 3 ) : 301–308

DOI: 10.1111/j.2006.0906-7590.04394.x

Journal article

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Density-dependent responses of fawn cohort body mass in two contrasting roe deer populations

Peter Kjellander, Jean-Michel Gaillard, Mark Hewison

Oecologia . 146 ( 4 ) : 521-530

DOI: 10.1007/s00442-005-0188-z

Journal article

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Temporal and spatial development of red deer harvesting in Europe : biological and cultural factors

J.M. Milner, C. Bonenfant, A. Mysterud, J.-M. Gaillard, S. Csanyi, N.C. Stenseth

Journal of Applied Ecology . 43 : 721-734

Journal article

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Testing five hypotheses of sexual segregation in an arctic ungulate

L. Loe, R. Irvine, C. Bonenfant, A. Stien, R. Langvatn, S. Albon...

Journal of Animal Ecology . 75 : 485-496

Journal article

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Do abortive infections decrease survival in Pyrenean chamois (Rupicapra pyrenaïca pyrenaïca)?

Maryline Pioz, Anne Loison, Philippe Gibert, Jean-Michel Jullien, Marc Artois, Emmanuelle Gilot-Fromont

7th conference of the European Wildlife Diseases Association .

Conference paper

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