Historical trends in frog populations in New Zealand based on public perceptions

Shaw, S.D., Bishop, P.J., Skerratt, L.F., Myhre, J., and Speare, R. (2014) Historical trends in frog populations in New Zealand based on public perceptions. New Zealand Journal of Zoology, 41 (1). pp. 10-20.

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Abstract

Surveys were distributed to New Zealand land users in 1998 and 2008 to acquire information about New Zealand frogs with the aim of compiling and mapping their distribution and inferred population trends without costly and time-consuming field surveys. The overall frog population trend was reported as declining, with possible causes reported as an increase in agriculture, an increase in the distribution of predatory fish and disease. The resultant maps could be used for four main purposes: 1) to identify regions where Litoria populations are known to occur, which can be eliminated when considering suitable regions for translocation of Leiopelma; 2) to identify growing or stable populations of Litoria species, which may assist future disease surveys, population monitoring and to identify sources of genetic material that may serve as an Ark for declining Australian populations; 3) to highlight populations that are in decline to enable effective targeting of detailed disease studies; and 4) to approximate the stability of amphibian populations in the absence of more accurate, but costly, scientific monitoring.

Item ID: 29578
Item Type: Article (Refereed Research - C1)
Keywords: amphibian, chytridiomycosis, citizen science, Leiopelma, Litoria, New Zealand, survey
ISSN: 1175-8821
Date Deposited: 04 Dec 2013 01:22
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050206 Environmental Monitoring @ 100%
SEO Codes: 96 ENVIRONMENT > 9606 Environmental and Natural Resource Evaluation > 960609 Sustainability Indicators @ 100%
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