Object

Title: The role of spiders in the decrease of damages caused by Acridoidea on meadows - experimental investigations

Creator:

Kajak, Anna ; Andrzejewska, Lucyna ; Wójcik, Zdzisława

Date issued/created:

1968

Resource Type:

Article

Subtitle:

The role of spiders on meadows - experimental investigations ; Rola pająków w zmniejszaniu szkód powodowanych przez szarańczaki (Acridoidea) na łące - badania eksperymentalne

Contributor:

Polska Akademia Nauk. Komitet Ekologiczny

Publisher:

Państwowe Wydawnictwo Naukowe

Place of publishing:

Warszawa

Description:

Pages 755-764 : illustrations ; 24 cm ; Bibliographical references (page 763) ; Abstract in Polish

Abstract:

The results of experiments concerning the elimination of Acridoidea by spiders of the species Araneus quadratus Clerck are described. It was established that their elimination due to spiders depends on the initial density of the prey population - the percentage of the insects caught in the webs rises with the increase of the density of the insects in the environment. The elimination also increases if the spiders are already stabilized in the environment at the moment of introduction of the prey and when they deal with a population new to the given environment, not adapted to the new conditions. The losses in the yield of vascular plants caused by grasshoppers were two times smaller in the experiments in which spiders were present as compared with those occuring in an environment with the same initial number of insects in the absence of spiders.

Relation:

Ekologia Polska. Seria A

Volume:

16

Issue:

38

Start page:

755

End page:

764

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:70390

Source:

MiIZ PAN, call no. P.2840

Language:

eng

Language of abstract:

pol

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Object collections:

Last modified:

Dec 16, 2019

In our library since:

Apr 17, 2019

Number of object content hits:

9

All available object's versions:

https://rcin.org.pl/publication/86243

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