Subtitle:

Švarc's principle

Contributor:

Polska Akademia Nauk. Instytut Ekologii

Publisher:

Państwowe Wydawnictwo Naukowe

Place of publishing:

Warszawa

Description:

Pages 3-8 ; 24 cm ; Bibiographical references (page 8) ; Abstract in English

Type of object:

Journal/Article

Abstract:

Intense studies over many years on several homothermic species have allowed S. S. Svarc to reach the following thesis: species specialized for extreme conditions (Arctic, montane) are adapted better (energetically, economically) than the co-occurring interspecific forms (subspecies, population) of species having a broad range of occurrence. This thesis is illustrated by four tables where the vast documentation of Svarc and his school is compiled. This concerns the heart index expressed in per milles of weight of this organ. Table I and IV show that the heart index of arctic species and those from high mountains does not differ basically from the heart index of species in the temperate zone. However, the heart index of polar populations or those from high mountains, species of temperate zones but with a broad range of occurrence, is much higher than for populations of temperate zones (Tables II and III). It seems that this thesis is significant, enough to be called Svarc’s principle.

References:

Kalabuchov N. I. 1946 - Sochranenie energeticeskogo balansa organizma kak osnova adaptacii - Z. obsc. Biol. 7.
Svarc S. S. 1959 - O nekotorych putijach prisposoblenija mlekopitajuscich (prejmuscestvenno Micromammalia) k uslovijam suscestvovanija v Subarktike - Trudy Salechardskogo Sta, Tjumen', 1: 177-219.
Svarc S. S. 1963 - Puti prisposoblendja nazemnych pozvonoonych zivotnych k uslovijam suscestvovanija v Subarktike. Mlekopitajusl:ie -Trudy Inst. Biol., Sverdlovsk, 33: 1-300.
Svarc S. S. 1969 - Evoljucionnaja ekologija zivotnych. Ekologiceskie mechanizmy evoljucionnogo processa - Trudy Inst. Ekol. Rast. Żivot. 65: 1-198.
Svarc S. S., Smirnov V. S., Dobrinski j L. N. 1968 - Metod morfofiziologiceskich indikatorov v ekologii nazemnych pozvonocnych - Trudy Inst. Ekol. Rast. Żivot. 58: 368-384.

Relation:

Wiadomości Ekologiczne

Volume:

25

Issue:

2

Start page:

3

End page:

8

Detailed Resource Type:

Article

Resource Identifier:

oai:rcin.org.pl:172304 ; ISSN 0013-2969

Source:

MiIZ PAN, call no. P.3259 ; click here to follow the link

Language:

pol

Language of abstract:

eng

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.

Access:

Open