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| Description
| - Several theoretical models have been proposed to describe population dynamics in a spatially heterogeneous environment. The source-sink model is among the most popular. Diffendorfer recently summarized its assumptions and predictions. Given the model reviewed, he argued that source-sink population dynamics arises if dispersal is somehow constrained. I offer an additional mechanism by suggesting that source-sink population dynamics can be generated by anthropogenic changes in landscapes that occur so quickly that organisms no longer make optimal habitat selection decisions. Individuals select the same habitats as their ancestors but these decisions no longer provide high fitness because of human-induced changes in habitat quality, such as increased rates of predation and/or parasitism. Provided that some of the habitats selected are turned by human-induced changes into sink habitats, source-sink population dynamics can emerge.
- Several theoretical models have been proposed to describe population dynamics in a spatially heterogeneous environment. The source-sink model is among the most popular. Diffendorfer recently summarized its assumptions and predictions. Given the model reviewed, he argued that source-sink population dynamics arises if dispersal is somehow constrained. I offer an additional mechanism by suggesting that source-sink population dynamics can be generated by anthropogenic changes in landscapes that occur so quickly that organisms no longer make optimal habitat selection decisions. Individuals select the same habitats as their ancestors but these decisions no longer provide high fitness because of human-induced changes in habitat quality, such as increased rates of predation and/or parasitism. Provided that some of the habitats selected are turned by human-induced changes into sink habitats, source-sink population dynamics can emerge. (en)
- Obecně se předpokládá, že populační dynamika zdroj-propadlo vzniká tehdy, když je rozptyl jedinců nějakým způsobem omezen. Zde navrhuji, že k tomuto typu populační dynamiky může vést suboptimální výběr prostředí živočichy, kteří se mohou preferenčně usídlovat ve špatném prostředí. To může být způsobeno tím, že prostředí se mění vlivem lidské činnosti velmi rychle a proto znaky prostředí, které dříve indikovaly jeho kvalitu už nemusí jako takové fungovat. Živočichové, kteří se těmito znaky stále řídí mohou činit špatná rozhodnutí. (cs)
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| Title
| - Jak může věst neadaptivní volba prostředí k populační dynamice zdroj-propadlo? (cs)
- How can maladaptive habitat choice generate source-sink population dynamics?
- How can maladaptive habitat choice generate source-sink population dynamics? (en)
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| skos:prefLabel
| - Jak může věst neadaptivní volba prostředí k populační dynamice zdroj-propadlo? (cs)
- How can maladaptive habitat choice generate source-sink population dynamics?
- How can maladaptive habitat choice generate source-sink population dynamics? (en)
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| skos:notation
| - RIV/61989592:15310/00:00002727!RIV07-MSM-15310___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/00:00002727
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - habitat selection; ecological trap; population dynamics (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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