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Ecology of Climate ChangeThe Importance of Biotic Interactions$
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Eric Post

Print publication date: 2013

Print ISBN-13: 9780691148472

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691148472.001.0001

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Population Dynamics and Stability

Population Dynamics and Stability

(p.96) Chapter 4 Population Dynamics and Stability
Ecology of Climate Change

Eric Post

Princeton University Press

This chapter examines the implications of climate change for population dynamics and stability. Population dynamics, or the variation in abundance of a population through time, can be decomposed into two components: density-dependent and density-independent processes. Density-dependent processes are those involving competitive interactions among members of the same species within the same population that influence survival and reproduction. Density-independent processes are those that do not involve interactions with other members of the same species in the same population but rather owe to external factors such as environmental variation. It is this latter set of processes that has relevance to climate change, though density dependence certainly has a role to play in the response of populations to climate change.

Keywords:   climate change, population dynamics, population stability, density-dependent processes, density-independent processes, competitive interactions, environmental variation

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