Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14151 |
Increased body size along urbanization gradients at both community and intraspecific level in macro-moths | |
Merckx, Thomas; Kaiser, Aurelien; Van Dyck, Hans | |
2018-08-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:8页码:3837-3848 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium |
英文摘要 | Urbanization involves a cocktail of human-induced rapid environmental changes and is forecasted to gain further importance. Urban-heat-island effects result in increased metabolic costs expected to drive shifts towards smaller body sizes. However, urban environments are also characterized by strong habitat fragmentation, often selecting for dispersal phenotypes. Here, we investigate to what extent, and at which spatial scale(s), urbanization drives body size shifts in macro-mothsan insect group characterized by positive size-dispersal linksat both the community and intraspecific level. Using light and bait trapping as part of a replicated, spatially nested sampling design, we show that despite the observed urban warming of their woodland habitat, macro-moth communities display considerable increases in community-weighted mean body size because of stronger filtering against small species along urbanization gradients. Urbanization drives intraspecific shifts towards increased body size too, at least for a third of species analysed. These results indicate that urbanization drives shifts towards larger, and hence, more mobile species and individuals in order to mitigate low connectivity of ecological resources in urban settings. Macro-moths are a key group within terrestrial ecosystems, and since body size is central to species interactions, such urbanization-driven phenotypic change may impact urban ecosystem functioning, especially in terms of nocturnal pollination and food web dynamics. Although we show that urbanization's size-biased filtering happens simultaneously and coherently at both the inter- and intraspecific level, we demonstrate that the impact at the community level is most pronounced at the 800 m radius scale, whereas species-specific size increases happen at local and landscape scales (50-3,200m radius), depending on the species. Hence, measuressuch as creating and improving urban green infrastructureto mitigate the effects of urbanization on body size will have to be implemented at multiple spatial scales in order to be most effective. |
英文关键词 | bat food webs body size shifts cascading effects human-induced rapid evolutionary change intraspecific trait variation light pollution pollinator networks urban ecology |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437284700044 |
WOS关键词 | ECO-EVOLUTIONARY DYNAMICS ; URBAN HEAT-ISLAND ; ECOSYSTEM FUNCTION ; SPECIES RICHNESS ; BERGMANNS RULE ; CLIMATE-CHANGE ; LIFE-HISTORY ; LANDSCAPE ; ECOLOGY ; BIODIVERSITY |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17102 |
专题 | 气候变化 资源环境科学 |
作者单位 | UCL, Earth & Life Inst, Biodivers Res Ctr, Behav Ecol & Conservat Grp, Louvain La Neuve, Belgium |
推荐引用方式 GB/T 7714 | Merckx, Thomas,Kaiser, Aurelien,Van Dyck, Hans. Increased body size along urbanization gradients at both community and intraspecific level in macro-moths[J]. GLOBAL CHANGE BIOLOGY,2018,24(8):3837-3848. |
APA | Merckx, Thomas,Kaiser, Aurelien,&Van Dyck, Hans.(2018).Increased body size along urbanization gradients at both community and intraspecific level in macro-moths.GLOBAL CHANGE BIOLOGY,24(8),3837-3848. |
MLA | Merckx, Thomas,et al."Increased body size along urbanization gradients at both community and intraspecific level in macro-moths".GLOBAL CHANGE BIOLOGY 24.8(2018):3837-3848. |
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