Climatic unpredictability and parasitism of caterpillars: Implications of global warming. Export

@article{citeulike:432008, abstract = {Insect outbreaks are expected to increase in frequency and intensity with projected changes in global climate through direct effects of climate change on insect populations and through disruption of community interactions. Although there is much concern about mean changes in global climate, the impact of climatic variability itself on species interactions has been little explored. Here, we compare caterpillar-parasitoid interactions across a broad gradient of climatic variability and find that the combined data in 15 geographically dispersed databases show a decrease in levels of parasitism as climatic variability increases. The dominant contribution to this pattern by relatively specialized parasitoid wasps suggests that climatic variability impairs the ability of parasitoids to track host populations. Given the important role of parasitoids in regulating insect herbivore populations in natural and managed systems, we predict an increase in the frequency and intensity of herbivore outbreaks through a disruption of enemy-herbivore dynamics as climates become more variable.}, address = {Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA 70118.}, author = {Stireman, J. O. and Dyer, L. A. and Janzen, D. H. and Singer, M. S. and Lill, J. T. and Marquis, R. J. and Ricklefs, R. E. and Gentry, G. L. and Hallwachs, W. and Coley, P. D. and Barone, J. A. and Greeney, H. F. and Connahs, H. and Barbosa, P. and Morais, H. C. and Diniz, I. R.}, citeulike-article-id = {432008}, citeulike-linkout-0 = {http://dx.doi.org/10.1073/pnas.0508839102}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/16293686}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=16293686}, comment = {[words] precipitation = rain fall || level of parasitism = frequency of parasitism ?}, day = {29}, doi = {10.1073/pnas.0508839102}, issn = {0027-8424}, journal = {Proc Natl Acad Sci U S A}, keywords = {05matheco25\_empiric, cat\_envorinmental\_sciences, climate\_change, herbivore, method\_analysis, outbreak, parasitoid, top-down}, month = {November}, number = {48}, pages = {17384--17387}, posted-at = {2005-12-09 14:49:43}, priority = {0}, title = {Climatic unpredictability and parasitism of caterpillars: Implications of global warming.}, url = {http://dx.doi.org/10.1073/pnas.0508839102}, volume = {102}, year = {2005} }

TY - JOUR ID - citeulike:432008 L3 - citeulike-article-id:432008 N2 - Insect outbreaks are expected to increase in frequency and intensity with projected changes in global climate through direct effects of climate change on insect populations and through disruption of community interactions. Although there is much concern about mean changes in global climate, the impact of climatic variability itself on species interactions has been little explored. Here, we compare caterpillar-parasitoid interactions across a broad gradient of climatic variability and find that the combined data in 15 geographically dispersed databases show a decrease in levels of parasitism as climatic variability increases. The dominant contribution to this pattern by relatively specialized parasitoid wasps suggests that climatic variability impairs the ability of parasitoids to track host populations. Given the important role of parasitoids in regulating insect herbivore populations in natural and managed systems, we predict an increase in the frequency and intensity of herbivore outbreaks through a disruption of enemy-herbivore dynamics as climates become more variable. IS - 48 JF - Proc Natl Acad Sci U S A SN - 0027-8424 AD - Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA 70118. EP - 17387 TI - Climatic unpredictability and parasitism of caterpillars: Implications of global warming. VL - 102 SP - 17384 KW - 05matheco25_empiric KW - cat_envorinmental_sciences KW - climate_change KW - herbivore KW - method_analysis KW - outbreak KW - parasitoid KW - top-down N1 - [words] precipitation = rain fall || level of parasitism = frequency of parasitism ? AU - Stireman, JO AU - Dyer, LA AU - Janzen, DH AU - Singer, MS AU - Lill, JT AU - Marquis, RJ AU - Ricklefs, RE AU - Gentry, GL AU - Hallwachs, W AU - Coley, PD AU - Barone, JA AU - Greeney, HF AU - Connahs, H AU - Barbosa, P AU - Morais, HC AU - Diniz, IR PY - 2005/11/29/ UR - http://dx.doi.org/10.1073/pnas.0508839102 ER -