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The population biology of the Orange Tip butterfly Anthocharis cardamines in Britain
Author(s) -
COURTNEY S. P.,
DUGGAN A. E.
Publication year - 1983
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.1983.tb00508.x
Subject(s) - biology , butterfly , population biology , ecology , population , abundance (ecology) , habitat , larva , population density , zoology , demography , sociology
.1 The population biology of Anthocharis cardamines (L.) is described and shown to vary with locality. Southern and Western populations emerge earlier than Northern ones, but Western and Northern populations occupy similar, wetter habitats and are associated primarily with Cardamine pratensis (L.). Southern populations are recorded mostly from Alliaria petiolata (Bieb.). 2 Studies on egg and larval survival indicate that host plant‐induced death and parasitization by a tachinid are important mortality factors. However, a key‐factor analysis on one population indicates that the major determinant of population size may be the number of eggs laid by ovipositing females, itself dependent upon weather during the oviposition period. Populations in different localities do show similar trends in abundance, corroborating the effect of weather. 3 Human effects on distribution and abundance are discussed, and some conservation strategies suggested.