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Your Position :Home->Past Journals Catalog->2012年49 No.3

Impacts of global warming on the interaction between host plantsinsect pests and their natural enemies
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Key Words:global warming, phenology, geographical distribution, community composition, diversity, ecosystem service >;09H
Abstract:6-(’/%&’!LB?M6BE;6120! 0=A0E96BBF2B?M6BN6HO912! ;6=M0E?O062B?M6BAH?MB0O61C E;6BB0120PQ0E65=091=0E>=;6I0
6=;?H>2010H6>9?1 >9O061C ;92; H0AH?C5E>9I0H6>0>;0F6H0B9R0BF>?O619@0=>0@@0E>=?@2B?M6BN6HO91291Global change, especially global warming, has become a global problem and challenge. Because insects have a short generation time and high reproductive rate they are likely to manifest effects of global warming in their development, reproduction and survival. Global warming can potentially affect insects in several ways, such as phonological changes, and latitudinal and altitudinal shifts in distribution. Insects are living in an interactive system with many species of plants and predators, all of which are affected directly or indirectly by changes in temperature. Such influences can lead to large variation in relative growth rates and phenological synchrony of host plants, insect pests and their natural enemies, and such speciesspecific responses to global warming can change the interactive system of interspecific (foodchain) components. Insects may escape unsuitable temperatures either temporally or spatially. Temporal escape is achieved by dormancy and diapauses whereas spatial escape is achieved by migration and dispersal. Variation in temporal or spatial synchrony can lead to changes in the species composition of communities and resultant changes in ecosystem services and function.
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