Impacts of climate change on avian populations
Impacts of climate change on avian populations
Date
2013-03-27
Authors
Jenouvrier, Stephanie
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Keywords
IPCC
Extreme events
Climatic niche
Stochastic population projection
Extinction
Uncertainties
Extreme events
Climatic niche
Stochastic population projection
Extinction
Uncertainties
Abstract
This review focuses on the impacts of climate change on population dynamics.
I introduce the MUP (Measuring, Understanding and Predicting) approach, which
provides a general framework where an enhanced understanding of climate-population
processes, along with improved long-term data, are merged into coherent projections
of future population responses to climate change. This approach can be applied to any
species, but this review illustrates its bene t using birds as examples.
Birds are one of the best-studied groups and a large number of studies have de-
tected climate impacts on vital rates (i.e. life history traits, such as survival, matura-
tion, or breeding, a ecting changes in population size and composition) and population
abundance. These studies reveal multifaceted e ects of climate with direct, indirect,
time- lagged and non-linear e ects. However, few studies integrate these e ects into a
climate-dependent population model to understand the respective role of climate vari-
ables and their components (mean state, variability, extreme) on population dynamics.
To quantify how populations cope with climate change impacts, I introduce a new
universal variable: the \population robustness to climate change." The comparison of
such robustness, along with prospective and retrospective analysis may help to identify
the major climate threats and characteristics of threatened avian species. Finally, studies projecting avian population responses to future climate change
predicted by IPCC-class climate models are rare. Population projections hinge on
selecting a multi-climate model ensemble at the appropriate temporal and spatial scales
and integrating both radiative forcing and internal variability in climate with fully
speci ed uncertainties in both demographic and climate processes.
Description
Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of John Wiley & Sons for personal use, not for redistribution. The definitive version was published in Global Change Biology 19 (2013): 2036-2057, doi:10.1111/gcb.12195.