NDLI: Inverse link between density and dispersal distance in butterflies: field evidence from six co-occurring species

Content Provider	Springer Nature Link
Author	Konvicka, Martin Zimmermann, Kamil Klimova, Martina Hula, Vladimir Fric, Zdenek
Copyright Year	2011
Abstract	A pertinent question in animal population ecology is the relationship between population abundance, density, and mobility. Two extreme ways to reach sufficient abundance for long-term persistence are to inhabit restricted locations at high densities, or large areas in low densities. The former case predicts low individual mobility, whereas the later predicts high one. This assumption is rarely tested using across-species comparisons, due to scarcity of data on both mobility and population sizes for multiple species. We used data on dispersal and local population densities of six butterfly species gained by mark-recapture, and data on their (relative) regional abundance obtained by walking transects in a landscape surrounding the mark-recapture sites. We correlated both local density and regional abundance against slopes of the inverse power function, appropriate for describing the shape of dispersal kernel. Local densities correlated negatively with the dispersal kernel slopes both when sexes were treated as independent data points and if treated together. For regional abundance, the correlation was also negative but only marginally significant. Our results corroborate the notion that a trade-off exists between living in dense populations and having poor dispersal, and vice versa. We link this observation to resource use by individual species, and distribution of such resources as host plants in the study landscape.
Starting Page	91
Ending Page	101
Page Count	11
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	54
Issue Number	1
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2011-07-09
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Animal movement Dispersal Landscape occupancy Lepidoptera Nymphalidae Population density Behavioural Sciences Ecology Forestry Zoology Evolutionary Biology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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