On hostplant use by Anthocharis cardamines L in southern Europe Lepidoptera Pieridae Sobre la utilitzacio de plantes nutricies per Anthocharis cardamines L at sud dEuropa Lepidoptera Pieridae

Stefanescu, C.; Dantart, J.

Butlleti de la Societat Catalana de Lepidopterologia 2n semestre; 92: 31-42

2003


Accession: 038494085

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Abstract
Despite the important differences in larval survival for different hostplants, Anthocharis cardamines feeds on many different Cruciferae in central and northern Europe. Given that oviposition also occurs on a wide range of crucifers at population level, Wiklund & Ahrberg (1978) considered A. cardamines to be an oligophagous species with a polyphagic strategy. This strategy may have been favoured to maximize reproductive success during the short search time (because of bad weather) employed by females during oviposition. Field research by the authors over the last ten years has provided abundant information on hostplant use by A. cardamines in Catalonia and Andorra (NE Iberian Peninsula). Likewise, data from a locality in the Montseny mountains have shown that the polyphagic strategy also occurs in a southern population of the butterfly, even under more favourable (i.e. less constraining) climatic conditions. This finding casts some doubts on the validity of the time constraining hypothesis as an explanation of the polyphagic strategy employed by A. cardamines in southern Europe.