Behavioral conditions： and life history responses to extreme climatic Studies on a migratory songbird  

作　　者：A. R Moller 

机构地区：[1]Laboratoire d'Ecologie, Systematique et Evolution, CNRS UMR 8079, Universite Paris-Sud, Batiment 362, F-91405 Orsay Cedex, France

出　　处：《Current Zoology》2011年第3期351-362,共12页动物学报（英文版）

摘　　要：Behavioral responses to environmental change are the mechanisms that allow for rapid phenotypic change preventing temporary or permanent damage and hence preventing reductions in fitness. Extreme climatic events are by definition rare, although they are predicted to increase in amplitude and frequency in the coming years. However, our current knowledge about behavioral responses to such extreme events is scarce. Here I analyze two examples of the effects of extreme weather events on behavior and life history： （1） A comparison of behavior and life history during extremely warm and extremely cold years relative to normal years; and （2） a comparison of behavior before and after the extremely early snowfall in fall 1974 when numerous birds died in the Alps during September-October. Behavioral and life history responses of barn swallows Hirundo rustica to extremely cold and extremely warm years were positively correlated, with particularly large effect sizes in cold years. Extreme mortality in barn swallows during fall migration 1974 in the Alps eliminated more than 40% of the breeding population across large areas in Central and Northern Europe, and this affected first arrival date, changes in timing and extent of reproduction and changes in degree of breeding sociality supposedly as a consequence of correlated responses to selection. Finally, I provide directions for research that will allow us to better understand behavior and life history changes in response to extreme climate change [Current Zoology 57 （3）： 351-362, 2011].

关 键 词：Barn swallow Extreme climate Hard selection Hirundo rustica Laying date Second clutches SOCIALITY Truncationselection 

分 类 号：P461[天文地球—大气科学及气象学] S476.3[农业科学—农业昆虫与害虫防治]