Pine marten (Martes martes) distribution and abundance in Ireland : A cross-jurisdictional analysis using non-invasive genetic survey techniques

O'Mahony, Declan and O'Reilly, Catherine and Turner, Peter (2012) Pine marten (Martes martes) distribution and abundance in Ireland : A cross-jurisdictional analysis using non-invasive genetic survey techniques. Mammalian Biology, 77 (5). pp. 351-357. ISSN 1616-5047

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On the Island of Ireland, pine martens (Martes martes) exist at the western edge of their global geographic range in the least forested region of Europe. The species has undergone substantial declines in abundance and distribution during the 20th century. Here, we report on the first cross-jurisdictional (Republic of Ireland and Northern Ireland) survey that aimed to investigate current pine marten distribution, assess any recent historical change and provide preliminary estimates of population abundance. A standardised non-invasive survey technique that used scat-based transect surveys and DNA analysis to confirm scat identity was deployed in 258 10. km national grid squares during 2005-2007. In the Republic of Ireland, an occupancy rate of 59.6% was found. Comparisons with historical data indicated that a range expansion of pine marten had occurred over the last 30. years. Indicative core population range extended to over 50% of the land area with population abundance estimates of 2740 individuals. In Northern Ireland, an occupancy rate of 56.7% was determined with the population largely concentrated in western areas. There was little or no evidence of any recent expansion from core population areas (18% of land area) despite recent increases in forest cover and full legal protection. Population abundance estimates of 320 emphasise the critical requirement for action to conserve this species. The pine marten is one of the rarest wildlife species in Ireland and, based on our studies, an evidenced based conservation strategy that promotes a sustainable future for the species needs to be developed.

Item Type: Article
Additional Information: Funding Information: Funding for this project was provided by the Forest Service of the Department of Agriculture and Food, Ireland under the National Development Plan 2000–2006, Heritage Council under the Wildlife Grants Scheme 2005, the Peoples Trust for Endangered Species (UK) and the National Parks and Wildlife Service of the Department of Environment, Heritage and Local Government.
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1100/1105
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Depositing User: Admin SSL
Date Deposited: 19 Oct 2022 23:06
Last Modified: 07 Jun 2023 18:43

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