About: The Sepik river (Papua New Guinea) is not a dispersal barrier for lowland rain-forest frogs

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	https://www.entu.cas.cz/png/DahlEtAlJTE13.pdf
Description	Major tropical rivers have been suggested to be important dispersal barriers that increase the beta diversity of animal communities in lowland rain forests. We tested this hypothesis using assemblages of frogs in the floodplains of the Sepik River, a major river system in Papua New Guinea. We surveyed frogs at five sites within a continuous 150x 500-km area of lowland rain forest bisected by the Sepik, using standardized visual and auditory survey techniques. We documented 769 frogs from 44 species. The similarity in species composition decreased with logarithm of geographical distance between the sites, which ranged from 82 to 465 km. The similarity decay did not depend on whether or not the compared sites were separated by the Sepik River or whether the species were aquatic or terrestrial breeders. Likewise, a DCA ordination of frog assemblages did not show separation of sites by the river as a significant factor explaining their composition. Our results suggest that even major rivers, such as the Sepik, may not act as dispersal barriers. Rivers may not limit the distribution of frogs and therefore have a limited effect on determining frog species abundance and assemblage structure in rain forests. Major tropical rivers have been suggested to be important dispersal barriers that increase the beta diversity of animal communities in lowland rain forests. We tested this hypothesis using assemblages of frogs in the floodplains of the Sepik River, a major river system in Papua New Guinea. We surveyed frogs at five sites within a continuous 150x 500-km area of lowland rain forest bisected by the Sepik, using standardized visual and auditory survey techniques. We documented 769 frogs from 44 species. The similarity in species composition decreased with logarithm of geographical distance between the sites, which ranged from 82 to 465 km. The similarity decay did not depend on whether or not the compared sites were separated by the Sepik River or whether the species were aquatic or terrestrial breeders. Likewise, a DCA ordination of frog assemblages did not show separation of sites by the river as a significant factor explaining their composition. Our results suggest that even major rivers, such as the Sepik, may not act as dispersal barriers. Rivers may not limit the distribution of frogs and therefore have a limited effect on determining frog species abundance and assemblage structure in rain forests. (en)
Title	The Sepik river (Papua New Guinea) is not a dispersal barrier for lowland rain-forest frogs The Sepik river (Papua New Guinea) is not a dispersal barrier for lowland rain-forest frogs (en)
skos:prefLabel	The Sepik river (Papua New Guinea) is not a dispersal barrier for lowland rain-forest frogs The Sepik river (Papua New Guinea) is not a dispersal barrier for lowland rain-forest frogs (en)
skos:notation	RIV/60077344:_____/13:00425938!RIV14-AV0-60077344
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(EE.2.3.20.0064), P(LH11008)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Novotný, Vojtěch Dahl, Chris
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	104741
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/13:00425938
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	amphibians; beta diversity; frogs (en)
http://linked.open.../riv/klicoveSlovo	beta diversity frogs amphibians
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[232CA42E12BC]
http://linked.open...i/riv/nazevZdroje	Journal of Tropical Ecology
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Beta diversity of plant-insect food webs along an altitudinal gradient in the tropics Centrum excelence pro globální studium funkce a biodiverzity lesních ekosystémů
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	29
http://linked.open...iv/tvurceVysledku	Novotný, Vojtěch Dahl, Chris Richards, S. J.
http://linked.open...ain/vavai/riv/wos	000330474700002
issn	0266-4674
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1017/S0266467413000527

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