J 2009

Can ant-eating Zodarion spiders (Araneae: Zodariidae) develop on a diet optimal for polyphagous predators

PEKÁR, Stanislav and Soeren TOFT

Basic information

Original name

Can ant-eating Zodarion spiders (Araneae: Zodariidae) develop on a diet optimal for polyphagous predators

Name in Czech

Mohou sa mravencozrave pavouky rodu Zodarion vyvijet na diete optimalni pro polyfagni predatory?

Authors

PEKÁR, Stanislav (703 Slovakia, guarantor) and Soeren TOFT (208 Denmark)

Edition

Physiological Entomology, United Kingdom, Royal Entomological Society, 2009, 0307-6962

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.358

RIV identification code

RIV/00216224:14310/09:00029356

Organization unit

Faculty of Science

UT WoS

000266073100013

Keywords (in Czech)

dieta; myrmekofagie; vyziva

Keywords in English

Diet; myrmecophagy; nutrition ; stenophagy; trade-offs

Tags

International impact, Reviewed
Změněno: 25/6/2009 10:46, prof. Mgr. Stanislav Pekár, Ph.D.

Abstract

V originále

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.

In Czech

Malo pozornosti bylo doposud venovano behavioralnim a fyziologickym adaptacim mravencozravych pavouku ...

Links

GA206/06/0629, research and development project
Name: Potravní specializace mravčíkovitých pavouků
Investor: Czech Science Foundation, Prey specialisation in zodariid spiders