NDLI: Variable history of land use reduces the relationship to specific habitat requirements of a threatened aquatic insect

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Variable history of land use reduces the relationship to specific habitat requirements of a threatened aquatic insect

Content Provider	Springer Nature Link
Author	Iversen, Lars Lønsmann Rannap, Riinu Briggs, Lars Sand Jensen, Kaj
Copyright Year	2015
Abstract	The hutchinsonian realized niche of a species is the most common tool for selecting the actions needed when restoring habitats and establishing conservation areas of species. However, defining the realized niche of a species is problematic due to variation across spatial and temporal scales. In this study we tested the hypothesis that habitat parameters defining the realized niche of a species can be derived from a regional study and that national changes in land use influence the perception of the realized niche across different landscapes. We described the realized habitat niche of the threatened dragonfly Leucorrhinia pectoralis, in four Estonian landscapes which all have undergone more than 20 years of habitat degradations. We recorded the presence/absence of L. pectoralis and measured 7 habitat variables for 140 lakes and ponds located in one restored and three un-restored landscapes. Lake size and proportion of short riparian vegetation were significantly positive parameters determining the presence of L. pectoralis across landscape types. The species was much more habitat specific in the restored landscape, with larger influence of other habitat parameters. Our data suggest that the realized niche of the species in the un-restored landscapes was constrained by the present-day habitats. The study demonstrate that if a species realized niche is derived from local distribution patterns without incorporating landscape history it can lead to an erroneous niche definition. We show that landscape restoration can provide knowledge on a species’ habitat dependencies before habitat degradation has occurred, provided that restoration mitigation reflects the former landscape characteristics.
Starting Page	155
Ending Page	164
Page Count	10
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	58
Issue Number	1
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2015-09-30
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biodiversity Extinction debt Hutchinsonian realized niche Natura 2000 Odonata Species conservation Ecology Zoology Plant Sciences Evolutionary Biology Behavioral Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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