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@article{837302, author = {Pekár, Stanislav and Toft, Soeren}, article_location = {United Kingdom}, article_number = {2}, keywords = {Diet; myrmecophagy; nutrition ; stenophagy; trade-offs}, language = {eng}, issn = {0307-6962}, journal = {Physiological Entomology}, title = {Can ant-eating Zodarion spiders (Araneae: Zodariidae) develop on a diet optimal for polyphagous predators}, volume = {34}, year = {2009} }
TY - JOUR ID - 837302 AU - Pekár, Stanislav - Toft, Soeren PY - 2009 TI - Can ant-eating Zodarion spiders (Araneae: Zodariidae) develop on a diet optimal for polyphagous predators JF - Physiological Entomology VL - 34 IS - 2 SP - 195-201 EP - 195-201 PB - Royal Entomological Society SN - 03076962 KW - Diet KW - myrmecophagy KW - nutrition KW - stenophagy KW - trade-offs N2 - Little attention is paid to the behavioural and physiological adaptations of ant-eating predators. It is expected that there should be a strong selection for traits related to prey handling, leading to the evolution of morphological, behavioural and nutritional adaptations. Such adaptations may then entail trade-offs in handling and utilization of alternative prey. To investigate behavioural as well as nutritional adaptations and the occurrence of the corresponding trade-offs in two ant-eating spiders of the genus Zodarion [ Zodarion atlanticum Pekár & Cardoso and Zodarion germanicum (C. L. Koch)], spiders are reared on two diets: ants (i.e. their preferred prey) and fruit flies (i.e. an alternative prey that is nutritionally optimal for euryphagous spiders). Food consumption is observed and several fitnessrelated life-history parameters are measured. Although spiders readily accept ants, more than one-third of 35 spiders refuse to consume fruit flies and starve. ER -
PEKÁR, Stanislav and Soeren TOFT. Can ant-eating Zodarion spiders (Araneae: Zodariidae) develop on a diet optimal for polyphagous predators. \textit{Physiological Entomology}. United Kingdom: Royal Entomological Society, 2009, vol.~34, No~2, p.~195-201. ISSN~0307-6962.
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