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Life strategies of Carabus problematicus (Coleoptera, Carabidae) at different altitudes on Snowdon, north Wales
Author(s) -
SPARKS T. H.,
BUSE A.,
GADSDEN R. J.
Publication year - 1995
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1995.tb01779.x
Subject(s) - biology , ecology
In a study to examine the effect of climate on life cycles, a total of 408 Carabus problematicus were caught in pitfall traps at four altitude sites between 660 m and 1055 m on Snowdon, north Wales. Under the assumption that the mandible condition of these beetles was related to the age of the individuals, an objective estimate, which was both sex‐ and size‐independent, was used to separate the captures into two age categories. The results from this estimation process suggested that beetles from the different altitudes followed different life strategies; low altitude beetles being predominantly annual and high altitude beetles predominantly biennial.