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 a Martina HRUŠKOVÁ

Základní údaje

Originální název

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

Název česky

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

Autoři

PEKÁR, Stanislav (703 Slovensko, garant), Soeren TOFT (208 Dánsko) a Martina HRUŠKOVÁ (203 Česká republika)

Vydání

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

Nakladatel

Bulgarian Academy of Science

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Bulharsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/05:00021813

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

araneae;zodarion;prey;diet

Štítky

Araneae, diet, prey, zodarion

Příznaky

Mezinárodní význam

Změněno: 2. 1. 2007 15:05, prof. Mgr. Stanislav Pekár, Ph.D.

Anotace

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.

Česky

Potravni specializace je velice vzacna u pravych predatoru ...

Návaznosti

MSM0021622416, záměr

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

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Diverzita biotických společenstev: kauzální analýza variability v prostoru a čase

Citovat

PEKÁR, Stanislav, Soeren TOFT a 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, s. 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 a 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, s.~40.

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