A naturally heterogeneous landscape can effectively slow down dispersal of aquatic microcrustaceans

P.J.  Juračka; S.A.J. Declerck; D. Vondrák; L. Beran; M. Černý; A. Petrusek

doi:10.1007/s00442-015-3501-5

A naturally heterogeneous landscape can effectively slow down dispersal of aquatic microcrustaceans

P.J. Juračka, S.A.J. Declerck, D. Vondrák, L. Beran, M. Černý, A. Petrusek

NIOO - Aquatic Ecology (AqE)

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Abstract

dispersers in a variety of landscapes, whereas others have indicated dispersal
limitation at large spatial scales or under specific circumstances. Based on a survey of
a set of recently created ponds in an area of approximately 18×25 km, we found
multiple indications of dispersal limitation affecting the community assembly of
microcrustacean communities. Spatial patterns in the community composition were
better explained by the geomorphological structure of the landscape than by mere
geographic distances. This suggests that ridges separating the network of valleys act
as dispersal barriers, and as such may channel the dispersal routes of the studied taxa
and, likely, of their animal vectors as well. Dispersal limitation was further supported by
a strong positive relationship between species richness and the abundance of
neighbouring water bodies, suggesting that isolation affects colonization rates. Finally,
the apparent dispersal limitation of microcrustaceans is further corroborated by the
observation of low colonization rates in newly dug experimental ponds in the study
area.

Original language	English
Pages (from-to)	785-796
Journal	Oecologia
Volume	180
Issue number	3
Early online date	18 Nov 2015
DOIs	https://doi.org/10.1007/s00442-015-3501-5
Publication status	Published - 2016

Keywords

international

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title = "A naturally heterogeneous landscape can effectively slow down dispersal of aquatic microcrustaceans",

abstract = "dispersers in a variety of landscapes, whereas others have indicated dispersallimitation at large spatial scales or under specific circumstances. Based on a survey ofa set of recently created ponds in an area of approximately 18×25 km, we foundmultiple indications of dispersal limitation affecting the community assembly ofmicrocrustacean communities. Spatial patterns in the community composition werebetter explained by the geomorphological structure of the landscape than by meregeographic distances. This suggests that ridges separating the network of valleys actas dispersal barriers, and as such may channel the dispersal routes of the studied taxaand, likely, of their animal vectors as well. Dispersal limitation was further supported bya strong positive relationship between species richness and the abundance ofneighbouring water bodies, suggesting that isolation affects colonization rates. Finally,the apparent dispersal limitation of microcrustaceans is further corroborated by theobservation of low colonization rates in newly dug experimental ponds in the studyarea.",

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AU - Juračka, P.J.

AU - Declerck, S.A.J.

AU - Vondrák, D.

AU - Beran, L.

AU - Černý, M.

AU - Petrusek, A.

N1 - 5945, AqE; Data archiving: Property of Charles University in Prague

PY - 2016

Y1 - 2016

N2 - dispersers in a variety of landscapes, whereas others have indicated dispersallimitation at large spatial scales or under specific circumstances. Based on a survey ofa set of recently created ponds in an area of approximately 18×25 km, we foundmultiple indications of dispersal limitation affecting the community assembly ofmicrocrustacean communities. Spatial patterns in the community composition werebetter explained by the geomorphological structure of the landscape than by meregeographic distances. This suggests that ridges separating the network of valleys actas dispersal barriers, and as such may channel the dispersal routes of the studied taxaand, likely, of their animal vectors as well. Dispersal limitation was further supported bya strong positive relationship between species richness and the abundance ofneighbouring water bodies, suggesting that isolation affects colonization rates. Finally,the apparent dispersal limitation of microcrustaceans is further corroborated by theobservation of low colonization rates in newly dug experimental ponds in the studyarea.

AB - dispersers in a variety of landscapes, whereas others have indicated dispersallimitation at large spatial scales or under specific circumstances. Based on a survey ofa set of recently created ponds in an area of approximately 18×25 km, we foundmultiple indications of dispersal limitation affecting the community assembly ofmicrocrustacean communities. Spatial patterns in the community composition werebetter explained by the geomorphological structure of the landscape than by meregeographic distances. This suggests that ridges separating the network of valleys actas dispersal barriers, and as such may channel the dispersal routes of the studied taxaand, likely, of their animal vectors as well. Dispersal limitation was further supported bya strong positive relationship between species richness and the abundance ofneighbouring water bodies, suggesting that isolation affects colonization rates. Finally,the apparent dispersal limitation of microcrustaceans is further corroborated by theobservation of low colonization rates in newly dug experimental ponds in the studyarea.

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DO - 10.1007/s00442-015-3501-5

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VL - 180

SP - 785

EP - 796

JO - Oecologia

JF - Oecologia

IS - 3

ER -

A naturally heterogeneous landscape can effectively slow down dispersal of aquatic microcrustaceans

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Keywords

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