Tytuł:

Modele cyklicznych populacji

Inny tytuł:

Models of cycling populations

Twórca:

Uchmański, Janusz

Współtwórca:

Polska Akademia Nauk. Komitet Ekologii

Wydawca:

Państwowe Wydawnictwo Naukowe

Miejsce wydania:

Warszawa

Data wydania/powstania:

1986

Opis:

Pages 215-240 ; 24 cm ; Bibliographical references (pages 238-239) ; Abstract in English

Typ obiektu:

Journal/Article

Temat i słowa kluczowe:

populations ; population dynamics

Abstrakt:

The rightness of a mathematical model can be verified by estimating its assumptions or by looking how it depicts the reality. It is tempting to try, according to the second way of checking, and see whether classic models of mathematical ecology can imitate the cyclic changes of population numbers — a phenomenon well documented by spectral and autocorrelatiye analyses. It turned out that these models are helpless at the whole complex of problems connected with population cycles. This refers to models of single population with time lag as well as to models with two-species situations, the prey-predator system included. The Chitty’s hypothesis, when translated to the mathematical model language, does not lead to density oscillations. In models with many eąuilibrium points the density oscillations can appear, but the typical, i.e. observed in nature period of these oscillations remains unexplained and the same holds to other phenomena connected with the population cycles. The situation does not change even if we introduce both space and dispersion of individuals to the model. Only in the case of Charnov-Finerty’s hypothesis at certain special conditions it is possible to evoke oscillations of density, but this model, too, similarly as all previous ones, does not explain the remaining phenomena connected with the population cycles.

Czasopismo/Seria/cykl:

Wiadomości Ekologiczne

Tom:

32

Zeszyt:

3

Strona pocz.:

215

Strona końc.:

240

Typ zasobu:

Text

Szczegółowy typ zasobu:

Article

Identyfikator zasobu:

0013-2969

Źródło:

MiIZ PAN, call no. P.3259 ; kliknij tutaj, żeby przejść

Język:

pol

Język streszczenia:

eng

Prawa:

Creative Commons Attribution BY 3.0 PL license

Zasady wykorzystania:

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: ; -

Digitalizacja:

Museum and Institute of Zoology of the Polish Academy of Sciences

Lokalizacja oryginału:

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

Dofinansowane ze środków:

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.

Dostęp:

Open