Welcome to the Alpine Marmot Project
PhD – ended in 2013
Nowadays it is difficult to miss the theme of climate change. According to reports from climate experts (GIEC), global warming will continue throughout the 21st century at a rate of 0.2°C per decade, mainly driven by anthropogenic emissions of greenhouse gases, further affecting the climate system (Easterling et al., 2000 ; IPCC, 2007). Understanding the impact of global change on the dynamics of animal populations poses a major societal challenge to promote the maintenance of biodiversity (Easterling et al., 2000 ; Clark et al., 2001 ; Hulme, 2005 ; King, 2005 ; Schlesinger, 2006 ; IPCC, 2007). A major challenge for the life sciences is thus the development of models capable of predicting the responses of natural systems to these changes of a key component of their environment (Clark et al., 2001 ; Hulme, 2005 ; Sutherland,2006 ; Jetz et al., 2007).
The Alpine climate is highly seasonal and seems particularly sensitive to global change today, but the effect of these recent changes remains poorly evaluated. The increase in average temperature over the last 30 years is likely to change the dynamics of the resources available to herbivores, and also the timing of access to these resources, in particular through the reduction of snow cover in winter and its accelerated melting in the spring. This project is thus concerned with assessing the links between physical processes (climate) and demographic mechanisms to understand the constraints exerted on the populations of Alpine mammals (mainly the Alpine marmot) at the local level. This understanding of the mechanisms can then predict the impact of climate change on these populations, and link the response of species (to climate change) to their life history strategy.
French Ministry of Education and Research grant (2009 – 2012)
Bichet C., Sauzet S., Averty L., Dupont P., Ferrandiz-Rovira M., Ferrari C., Figueroa I., Tafani M., Rézouki C., López BC., and Cohas, A. (2016) Multiple geographic origins and high genetic differentiation of the Alpine marmots reintroduced in the Pyrenees. Conservation Genetics, 17: 1157–1169. pdf
Rézouki, C., Tafani, M., Cohas, A., Loison, A., Gaillard, J. M., Allainé, D., & Bonenfant, C. (2016). Socially‐mediated effects of climate change decrease survival of hibernating Alpine marmots. Journal of Animal Ecology,85: 761–773. pdf
Tafani M., Cohas A., Bonenfant C., Gaillard J.-M., Allainé D. (2013) Decreasing litter size of marmots over time: a life-history response to climate change? Ecology, 94:580–586. pdf
Tafani M., Cohas A., Bonenfant C., Gaillard J.-M., Lardy S., Allainé D. (2013) Sex-specific senescence in body mass of a monogamous and monomorphic mammal: the case of Alpine marmots. Oecologia, 172:427–436. pdf
Lardy S., Cohas A., Desouhant E., Tafani M., Allainé D. (2012) Paternity and dominance loss in male breeders : the cost of helpers in a cooperatively breeding mammal. PLoS One 7: e29508. doi:10.1371/journal.pone.0029508. pdf
Tafani, M. (2013) Effet des changements climatiques sur une population de marmottes alpines (Marmota marmota). 36ème colloque de mammalogie, Toulouse, France. Oral communication. Invited.
Tafani, M. (2010) Growth pattern and senescence in body mass of a medium sized herbivore (Marmota marmota). Ecologie 2010 Conference, Montpellier, France. Poster.
Tafani M. (2013) Traits d’histoire de vie et démographie face aux changements globaux en milieu alpin: l’exemple de la marmotte alpine Marmota marmota. Thèse de doctorat. Université Claude Bernard Lyon 1, Lyon. pdf