Metabolic approaches to understanding climate change impacts on seasonal host‐macroparasite dynamics
- 16 November 2012
- journal article
- Published by Wiley in Ecology Letters
- Vol. 16 (1), 9-21
- https://doi.org/10.1111/ele.12022
Abstract
Climate change is expected to alter the dynamics of infectious diseases around the globe. Predictive models remain elusive due to the complexity of host-parasite systems and insufficient data describing how environmental conditions affect various system components. Here, we link host-macroparasite models with the Metabolic Theory of Ecology, providing a mechanistic framework that allows integrating multiple nonlinear environmental effects to estimate parasite fitness under novel conditions. The models allow determining the fundamental thermal niche of a parasite, and thus, whether climate change leads to range contraction or may permit a range expansion. Applying the models to seasonal environments, and using an arctic nematode with an endotherm host for illustration, we show that climate warming can split a continuous spring-to-fall transmission season into two separate transmission seasons with altered timings. Although the models are strategic and most suitable to evaluate broad-scale patterns of climate change impacts, close correspondence between model predictions and empirical data indicates model applicability also at the species level. As the application of Metabolic Theory considerably aids the a priori estimation of model parameters, even in data-sparse systems, we suggest that the presented approach could provide a framework for understanding and predicting climatic impacts for many host-parasite systems worldwide.Keywords
This publication has 71 references indexed in Scilit:
- Frontiers in climate change–disease researchTrends in Ecology & Evolution, 2011
- Systematic variation in the temperature dependence of physiological and ecological traitsProceedings of the National Academy of Sciences of the United States of America, 2011
- Global analysis of thermal tolerance and latitude in ectothermsProceedings Of The Royal Society B-Biological Sciences, 2010
- Modelling the ecological niche from functional traitsPhilosophical Transactions Of The Royal Society B-Biological Sciences, 2010
- Global metabolic impacts of recent climate warmingNature, 2010
- Latitudinal variation in lifespan within species is explained by the metabolic theory of ecologyProceedings of the National Academy of Sciences of the United States of America, 2009
- Homage to Linnaeus: How many parasites? How many hosts?Proceedings of the National Academy of Sciences of the United States of America, 2008
- Impacts of climate warming on terrestrial ectotherms across latitudeProceedings of the National Academy of Sciences of the United States of America, 2008
- Conservation physiologyTrends in Ecology & Evolution, 2006
- Predicting the impacts of climate change on the distribution of species: are bioclimate envelope models useful?Global Ecology and Biogeography, 2003