New article about scattered trees IN ACT from Fenner Landscape ecologist

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Subject: New article about scattered trees IN ACT from Fenner Landscape ecologists
From: Kathryn Eyles <>
Date: Thu, 7 Dec 2017 03:32:58 +0000

Dear birdlisters

Contact me if you want the full article and i will send pdf 


Darren Le Roux and colleagues on the value of scattered trees for wildlife
“The biodiversity value of scattered trees in modified landscapes is often overlooked in planning and conservation decisions. We conducted a multitaxa study to determine how wildlife abundance, species richness and community composition at individual trees are affected by (1) the landscape context in which trees are located; and (2) the size of trees. Location: Canberra, south-eastern Australia.
Landscape context affected all taxa surveyed. Trunk arthropod communities differed between trees in urban built-up areas and reserves. Bat activity and richness were significantly reduced at trees in urban built-up areas suggesting that echo-locating bats may be disturbed by high levels of urbanization. Bird abundance and richness were highest at trees located in modified landscapes, highlighting the value of scattered trees for birds. Bird communities also differed between non-urban and urban trees. Tree size had a significant effect on birds but did not affect trunk arthropods and bats. Large trees supported higher bird abundance, richness and more unique species compared to medium and small trees.
Conclusions: Scattered trees support a diversity of wildlife. However, landscape context and tree size affected wildlife in contrasting ways. Land management strategies are needed to collectively account for responses exhibited by multiple taxa at varying spatial scales. We recommend that the retention and perpetuation of scattered trees in modified landscapes should be prioritized, hereby providing crucial habitat benefits to a multitude of taxa.
Ref: Le Roux, D.S., Ikin, K., Lindenmayer, D.B., Manning, A.D., and Gibbons, P. (2017). The value of scattered trees for wildlife: Contrasting effects of landscape context and tree size. Diversity and Distributions, doi:10.1111/ddi.12658.

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