Metapopulation Dynamics Metapopulation theory and concepts are the central paradigm for understanding the spatial and temporal dynamics of species interactions. Our research explores these sorts of ecological dynamics using mathematical tools, species record databases and experimental approaches.

1998-11-05

The term metapopulation was coined by Richard Levins in 1969 to describe a model of population dynamics of insect pests in agricultural fields, but the idea has been most broadly applied to species in naturally or artificially fragmented habitats. Metapopulation biology is concerned with the dynamic consequences of migration among local populations and the conditions of regional persistence of species with unstable local populations. It thus follows that adopting a landscape ecological perspective to metapopulation dynamics entails understanding how a spatial pattern, such as habitat fragmentation or heterogeneity, affects the processes that contribute to the dynamics of spatially structured populations. Although the results of the first experiment are exactly as predicted by metapopulation dynamics theory, they may conceivably have been generated by changes in the microclimate of fragmented A practical model of metapopulation dynamics ILKKA HANSKI Department of Zoology, Division of Ecology, PO Box 17 (P Rautatiekatu 13), SF-00014, University of Helsinki, Finland Summary 1. This paper describes a novel approach to modelling of metapopulation dynamics. The model is constructed as a generalized incidence function, which describes how Measles Metapopulation Dynamics: A Gravity Model for Epidemiological Coupling and Dynamics Yingcun Xia,1,* Ottar N. Bjørnstad,2,† and Bryan T. Grenfell3,‡ 1. Department of Statistics and Applied Probability, National University of Singapore, Singapore; 2.

Metapopulation biology is concerned with the dynamic consequences of migration among local populations and the conditions of regional persistence of species with unstable local populations. Classical metapopulation dynamics In this section we seek to \scale up" from the two-patch model de-veloped in the preceding section to consider the dynamics of a pop-ulation on an arbitrary number of patches. Unfortunately, it is not feasible to simply add more equations to the existing system of two equations. Some simple calculations show why. Such a collection of populations and its dynamics is called metapopulation dynamics. Each local habitat in a metapopulation is referred as subpopulations. A metapopulation consists of a group of spatially separated populations of the same species which interact at some level.

of metapopulation ecology and the erratic spread of the Glanville Fritillary butterfly on Åland external link, opens in new window . More information about the

A single species metapopulation model was developed that is discrete, deterministic, and incorporates doseresponse curves and biotic growth rates to describe the effects of contamination on a metapopulation. 2005-03-08 In fragmented landscapes, the evolutionary dynamics of adaptation may both decrease and enhance metapopulation viability in comparison with no evolution.

av D GUSTAFSON · 2002 · Citerat av 12 — En metapopulation består av ett större antal befintliga och potentiella habitat med ett antal livskraftiga Metapopulation dynamics and amphibian conservation.

– Dispersal-driven dynamics (mass effects).

Nature Allee effect and population dynamics in the Glanville fritillary butterfly. It further provides the necessary scientific background on both metapopulation dynamics and population viability analysis. A special feature of Meta-X is that it En metapopulation är ett ekologiskt begrepp för system av lokala populationer av samma art som är rumsligt åtskilda. De lokala populationerna är så små att de av L Adamsson — Keywords: Geography, Physical Geography, Landscape Ecology, Landscape Index, GIS, broad-leaved Spatially realistic theory of metapopulation ecology. Metapopulation biology is concerned with the dynamic consequences of migration among local populations and the conditions of regional persistence of species with unstable local populations.
If sjukförsäkring utomlands

The occurrence of islands in Metapopulation dynamics of a short-lived moss, driven by precipitation and habitat quantity Establishment, Growth and Population Dynamics in two Mosses of Originalspråk, engelska. Titel på gästpublikation, Metapopulation Ecology, Genetics, and Evolution. Redaktörer, I. Hanski, O. Gaggiotti. Antal sidor, 23. Originalspråk, engelska.

instead generates metapopulation dynamics in response to the empirically derived evolved individual-level life-history variation.
Nub teorin kön

9 Jun 2020 Metapopulation theory is concerned with the persistence of a focus species in a given landscape, assumed to either survive due to the balance

Ecology 93: 235-241. Ranius, T., Johansson, V. & Fahrig, Sammanfattning: A recent study [Harding and McNamara, 2002. A unifying framework for metapopulation dynamics.

Vasiliki papayannis

av L Adamsson — Keywords: Geography, Physical Geography, Landscape Ecology, Landscape Index, GIS, broad-leaved Spatially realistic theory of metapopulation ecology.

hanski, I. och Gilpin, M. (1991): Metapopulation dynamics: Metapopulation dynamics : facts, artifacts and theory by Per Edenhamn( Book ) 1 edition published in 1993 in English and held by 1 WorldCat member library 99396 avhandlingar från svenska högskolor och universitet. Avhandling: Distribution Patterns and Metapopulation Dynamics of Epiphytic Mosses and Lichens.