Tit community dynamics

Climate change drives major modifications in wintering weather and the effects of these changes on communities should be a major concern to improve understanding about the biodiversity responses in the face of climate change.

To investigate this topic the bird wintering communities are the good candidates because the dynamics of these communities are integrative of several processes such as the breeding dynamics, the intensity of migratory behaviour and individual interactions between cons-specific and interspecific individuals.

In collaboration with Dr. F. Chiron and Dr. C. Bessa-Gomes of the University of Orsay (South Paris), we are working on the behaviour diversity in the food research strategies in wintering communities of Paridae. We seek in this program to understand by individual follow-up by tagging 1) variability in individual food research behaviours (depending on resource availability) 2) possible sedentarization of individuals in response to a near-abundant availability of resources, 3) the effect of this sedentarization on reproductive success. For this purpose, we have been following a colour-coding followed by a photo-trap for 3 years a community of Paridae composed by four species: Great Tit (Parus major), Blue Tit (Cyanistes caeruleus), Coal tit (Poecile palustris) and Long-tailed Bushtit (Aegithalos caudatus).

Some picks about field working here about winters from 2014 to 2016 and here about the 2016-2017 winter.

 

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