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Distribution modelling as an approach to the conservation of a threatened alpine endemic butterfly (Lepidoptera: Satyridae)
De Groot, Maarten (Author), Rebeušek, Franc (Author), Grobelnik, Vesna (Author), Govedič, Marijan (Author), Šalamun, Ali (Author), Verovnik, Rudi (Author)

URLURL - Presentation file, Visit http://www.eje.cz/scripts/viewabstract.php?abstract=1429 This link opens in a new window

Abstract
Mountain butterfly species are often restricted in their distribution and under threat from habitat destruction and climate change. Due to the inaccessibility of their habitats the distributions of many such species are unknown. We have investigated whether information on the habitat requirements of the Alpine endemic species Erebia calcaria could be used for modelling its potential distribution. We surveyed part of its range using transects and recorded habitat and environmental parameters. The most important parameters determining the presence of the species were average height of the vegetation,maximum height of the vegetation, percentage area of bare ground, number of food plants and slope. Furthermore, the abundance of E. calcaria is strongly affected by site exposure and grazing intensity. Using these results we modelled the potential distribution of the species in its known historical range in Slovenia. In the region covered by the model 70% of the records of E.calcaria were within the predicted distribution. It is reasonable to proposethat such a high detection rate justifies the use of distribution models for predicting a species range and providing important additional information for their conservation. In the case of E. calcaria, we have shown that endemic mountain butterflies can be strongly threatened by fragmentation of their habitat, overgrazing and succession, which could be further amplifiedby changes in climate.

Language:English
Keywords:Erebia Calcaria
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2009
Number of pages:Str. 77-84
Numbering:Letn. 106, št. 1
UDC:591
ISSN on article:1210-5759
COBISS.SI-ID:25391833 This link opens in a new window
Views:733
Downloads:308
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Record is a part of a journal

Title:European Journal of Entomology
Shortened title:Eur. j. entomol.
Publisher:Institute of Entomology
ISSN:1210-5759
COBISS.SI-ID:2226221 This link opens in a new window

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