NDLI: Non-native plantation forests as alternative habitat for native forest beetles in a heavily modified landscape

Content Provider	Springer Nature Link
Author	Pawson, Stephen M. Brockerhoff, Eckehard G. Meenken, Esther D. Didham, Raphael K.
Copyright Year	2008
Abstract	The once extensive native forests of New Zealand’s central North Island are heavily fragmented, and the scattered remnants are now surrounded by a matrix of exotic pastoral grasslands and Pinus radiata plantation forests. The importance of these exotic habitats for native biodiversity is poorly understood. This study examines the utilisation of exotic plantation forests by native beetles in a heavily modified landscape. The diversity of selected beetle taxa was compared at multiple distances across edge gradients between each of the six possible combinations of adjacent pastoral, plantation, clearfell and native forest land-use types. Estimated species richness (Michaelis–Menten) was greater in production habitats than native forest; however this was largely due to the absence of exotic species in native forest. Beetle relative abundance was highest in clearfell-harvested areas, mainly due to colonisation by open-habitat, disturbance-adapted species. More importantly, though, of all the non-native habitats sampled, beetle species composition in mature P. radiata was most similar to native forest. Understanding the influence of key environmental factors and stand level management is important for enhancing biodiversity values within the landscape. Native habitat proximity was the most significant environmental correlate of beetle community composition, highlighting the importance of retaining native remnants within plantation landscapes. The proportion of exotic beetles was consistently low in mature plantation stands, however it increased in pasture sites at increasing distances from native forest. These results suggest that exotic plantation forests may provide important alternative habitat for native forest beetles in landscapes with a low proportion of native forest cover.
Starting Page	1127
Ending Page	1148
Page Count	22
File Format	PDF
ISSN	09603115
Journal	Biodiversity and Conservation
Volume Number	17
Issue Number	5
e-ISSN	15729710
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-04-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Coleoptera Edge effects Habitat fragmentation Habitat isolation Landscape ecology Matrix habitat Natural forest Pasture Pitfall trapping Plantations Evolutionary Biology Plant Sciences Tree Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

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