Subtitle:

Effects of density and substrate on Chironomus

Contributor:

Polish Academy of Sciences. Institute of Ecology

Publisher:

Polish Academy of Sciences. Institute of Ecology. Publishing Office

Place of publishing:

Dziekanów Leśny

Description:

Strony 369-378 : ilustracje ; 27 cm ; Bibliografia na stronie 378

Type of object:

Czasopismo/Artykuł

Abstract:

Strong dependence of larval tube numbers on the population density, the condition of larvae and feeding situation occurred, but no correlation with the type of substrate was found.Numbers of larval tubes per individual were on the average 2.6 times lower at high (20 and 40 thousands ind. m-2) than at low (2-2.5 thousands ind. m-2) initial densities of larvae. They fluctuated strongly, but only at low densities, indicating the very high activity of larvae; high densities probably restrained this activity.The grown up larvae succeeded in finishing their full development in the mineral substrate with the tiny (< 0.1 mm) layer of the natural mud at the top of it. No conical nettings (inside larval tubes) for food filtration were observed. The larvae fed mostly on the internal walls of their tubes; sometimes they also collected particles from the surface of the substrate (especially of substrates poor in the organic matter}, after the food was furnished. The emergence of imagines depended on the larval density but quite differently than the numbers of tubes. The threshold for the decreased tube numbers per individual was between 2.5 and 20 thousands individuals m2, while that for the emergence of imagines - between 20 and 40 thousands individuals m2.

References:

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Relation:

Polish Journal of Ecology

Volume:

49

Issue:

4

Start page:

369

End page:

378

Detailed Resource Type:

Artykuł

Resource Identifier:

oai:rcin.org.pl:115850 ; ISSN 1505-2249

Source:

MiIZ PAN, sygn. P.2840 ; click here to follow the link

Language:

eng

Language of abstract:

Rights:

Licencja Creative Commons Uznanie autorstwa 3.0 Polska

Terms of use:

Zasób chroniony prawem autorskim. [CC BY 3.0 PL] Korzystanie dozwolone zgodnie z licencją Creative Commons Uznanie autorstwa 3.0 Polska, której pełne postanowienia dostępne są pod adresem: ; -

Digitizing institution:

Muzeum i Instytut Zoologii Polskiej Akademii Nauk

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

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