Adoption of alternative habitats by a threatened, "obligate" forest-dwelling bat in a fragmented landscape

Toth, Cory Alexander, Cummings, Georgia, Dennis, Todd Elliott, & Parsons, Stuart (2015) Adoption of alternative habitats by a threatened, "obligate" forest-dwelling bat in a fragmented landscape. Journal of Mammalogy, 96(5), pp. 927-937.

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While they are among the most ecologically important animals within forest ecosystems, little is known about how bats respond to habitat loss and fragmentation. The threatened lesser short-tailed bat (Mystacina tuberculata), considered to be an obligate deep-forest species, is one of only 2 extant land mammals endemic to New Zealand; it plays a number of important roles within native forests, including pollination and seed dispersal, and rarely occurs in modified forests. We used radiotelemetry to study the movements, roosting behavior, and habitat use of M. tuberculata within a fragmented landscape comprised of 3 main habitat types: open space (harvested forest and pastoral land), native forests, and exotic pine plantations. We found that the bats had smaller home-range areas and travelled shorter nightly distances than populations investigated previously from contiguous native forest. Furthermore, M. tuberculata occupied all 3 habitat types, with native forest being preferred overall. However, individual variation in habitat selection was high, with some bats preferring exotic plantation and open space over native forest. Roosting patterns were similar to those previously observed in contiguous forest; individual bats often switched between communal and solitary roosts. Our findings indicate that M. tuberculata exhibit some degree of behavioral plasticity that allows them to adapt to different landscape mosaics and exploit alternative habitats. To our knowledge, this is the first such documentation of plasticity in habitat use for a bat species believed to be an obligate forest-dweller.

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ID Code: 86191
Item Type: Journal Article
Refereed: Yes
Keywords: Habitat use, Home-range area, Mystacina tuberculata, Radiotelemetry, Roosting behavior
DOI: 10.1093/jmammal/gyv092
ISSN: 0022-2372
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 American Society of Mammalogists
Deposited On: 04 Aug 2015 22:41
Last Modified: 16 May 2016 04:32

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