Zodarion spiders (Araneae: Zodariidae) do not grow well on any
ant

D 2005

Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant

PEKÁR, Stanislav, Soeren TOFT and Martina HRUŠKOVÁ

Basic information

Original name

Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant

Name in Czech

Pavouci rodu Zodarion (Araneae: Zodariidae) nerostou dobre na jakemkoliv maravenci

Authors

PEKÁR, Stanislav (703 Slovakia, guarantor), Soeren TOFT (208 Denmark) and Martina HRUŠKOVÁ (203 Czech Republic)

Edition

Blagoevgrad, Programm, Abstracts, List of PArticipants, p. 40-40, 2005

Publisher

Bulgarian Academy of Science

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Bulgaria

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/05:00021813

Organization unit

Faculty of Science

Keywords in English

araneae;zodarion;prey;diet

Abstract

ORIG CZ

V originále

Dietary specialisation is very rare in true predators. So far it has been proved experimentally only in two aphidophage species. We performed laboratory experiments in order to find out how strictly are ant-eating spiders specialised in their diet. A central European Zodarion germanicum was used in two types of experiments: 1. study on the effect of different diets on fitness related characteristics, and 2. study on certain aspects of predatory behaviour. Hatched spiders were reared for four months on four different diets: 1. monodiet of Formicinae (Lasius), 2. monodiet of Myrmicinae (Tetramorium), 3. mixed diet of Formicinae and Myrmicinae, and 4. monodiet of Drosophila flies. Survival, moulting and weight were observed regularly. In the other experiment, latency to the first attack, number of attacks and the paralysis latency were investigated using four ant species of two subfamilies. In the diet experiment, spiders suffered a high mortality and had very slow development on the fly diet despite the fact that flies were reared on an enriched medium. This showed that Z. germanicum is a strict ant-eater. It developed most quickly and had lowest mortality on pure Formicinae diet. Myrmicinae ants were of inferior quality and mixed diet was of intermediate quality. This shows that Z. germanicum is a Formicinae specialist. Predatory behaviour experiments gave similar results. Z. germanicum was most efficient in the paralysis of Formicinae ants.

In Czech

Potravni specializace je velice vzacna u pravych predatoru ...

Links

MSM0021622416, plan (intention)

Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time

Citovat

PEKÁR, Stanislav, Soeren TOFT and Martina HRUŠKOVÁ. Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant. In Programm, Abstracts, List of PArticipants. Blagoevgrad: Bulgarian Academy of Science, 2005, p. 40.

@inproceedings{707259,
   author = {Pekár, Stanislav and Toft, Soeren and Hrušková, Martina},
   address = {Blagoevgrad},
   booktitle = {Programm, Abstracts, List of PArticipants},
   keywords = {araneae;zodarion;prey;diet},
   language = {eng},
   location = {Blagoevgrad},
   pages = {40-40},
   publisher = {Bulgarian Academy of Science},
   title = {Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant},
   year = {2005}
}

TY  - JOUR
ID  - 707259
AU  - Pekár, Stanislav - Toft, Soeren - Hrušková, Martina
PY  - 2005
TI  - Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant
PB  - Bulgarian Academy of Science
CY  - Blagoevgrad
KW  - araneae;zodarion;prey;diet
N2  - Dietary specialisation is very rare in true predators. So far it has been proved experimentally only in two aphidophage species. We performed laboratory experiments in order to find out how strictly are ant-eating spiders specialised in their diet. A central European Zodarion germanicum was used in two types of experiments: 1. study on the effect of different diets on fitness related characteristics, and 2. study on certain aspects of predatory behaviour. Hatched spiders were reared for four months on four different diets: 1. monodiet of Formicinae (Lasius), 2. monodiet of Myrmicinae (Tetramorium), 3. mixed diet of Formicinae and Myrmicinae, and 4. monodiet of Drosophila flies. Survival, moulting and weight were observed regularly. In the other experiment, latency to the first attack, number of attacks and the paralysis latency were investigated using four ant species of two subfamilies. In the diet experiment, spiders suffered a high mortality and had very slow development on the fly diet despite the fact that flies were reared on an enriched medium. This showed that Z. germanicum is a strict ant-eater. It developed most quickly and had lowest mortality on pure Formicinae diet. Myrmicinae ants were of inferior quality and mixed diet was of intermediate quality. This shows that Z. germanicum is a Formicinae specialist. Predatory behaviour experiments gave similar results. Z. germanicum was most efficient in the paralysis of Formicinae ants.
ER  -

PEKÁR, Stanislav, Soeren TOFT and Martina HRUŠKOVÁ. Zodarion spiders (Araneae: Zodariidae) do not grow well on any ant. In \textit{Programm, Abstracts, List of PArticipants}. Blagoevgrad: Bulgarian Academy of Science, 2005, p.~40.

Detailed Information on Publication Record