NDLI: Abiotic variables dictate the best monitoring times for the endangered Table Mountain stag beetle (Colophon westwoodi Gray 1832, Coleoptera: Lucanidae)

Content Provider	Springer Nature Link
Author	Roets, Francois Pryke, James S. McGeoch, Melodie A.
Copyright Year	2012
Abstract	There is often a lack of basic ecological data needed to implement effective conservation management programmes for endangered arthropods. This is particularly true for the highly localized and rare Colophon, a genus of beetles of which all members are narrow range endemics of conservation concern. The genus is confined to the highest mountain peaks in the Cape Floristic Region of South Africa and each of the 17 known species is endemic to a particular mountain or range. We investigated the influence of selected abiotic variables on adult Colophon westwoodi activity in Table Mountain National Park, South Africa, which will aid the development of an effective monitoring programme. Weekly surveys conducted on Table Mountain showed that adult numbers peaked during early summer. Adults were active at dusk on clear days, although earlier when misty. Unexpectedly, relative humidity and air temperature had no significant effect on Colophon abundance, while illuminance was the most important predictor. Contrary to general consensus, C. westwoodi activity is not strictly crepuscular but also appears nocturnal. Thus, Colophon monitoring programmes need to be conducted in early summer after sunset and monitoring can continue later than previously assumed. Little is still known about C. westwoodi population size, area of occupancy, general behaviour and the impact tourists have on it, or indeed why the genus is restricted to mountain tops. Therefore this research is important for the design of monitoring protocols for this flagship species, while at the same time directing future research.
Starting Page	279
Ending Page	285
Page Count	7
File Format	PDF
ISSN	1366638X
Journal	Journal of Insect Conservation
Volume Number	17
Issue Number	2
e-ISSN	15729753
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-05-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Invertebrate monitoring Biodiversity conservation Endemic arthropod Cape Floristic Region Narrow range endemic Entomology Conservation Biology/Ecology Biodiversity Animal Ecology Life Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Animal Science and Zoology Nature and Landscape Conservation Insect Science

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