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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F14%3A43887323%21RIV15-MSM-12310___
rdf:type
skos:Concept n19:Vysledek
rdfs:seeAlso
http://www.bioone.org/doi/full/10.1657/1938-4246-46.4.811
dcterms:description
Alpine areas of the tropical Andes constitute the largest of all tropical alpine regions worldwide. They experience a particularly harsh climate, and they are fragmented into tropical alpine islands at various spatial scales. These factors generate unique patterns of continental insularity, whose impacts on biodiversity remain to be examined precisely. By reviewing existing literature and by presenting unpublished data on beta-diversity and endemism for a wide array of taxonomic groups, we aimed at providing a clear, overall picture of the isolation-biodiversity relationship in the tropical alpine environments of the Andes. Our analyses showed that (1) taxa with better dispersal capacities and wider distributions (e.g., grasses and birds) were less restricted to alpine areas at local scale; (2) similarity among communities decreased with spatial distance between isolated alpine areas; and (3) endemism reached a peak in small alpine areas strongly isolated from main alpine islands. These results pinpoint continental insularity as a powerful driver of biodiversity in the tropical High Andes. A combination of human activities and warming is expected to increase the effects of continental insularity in the next decades, especially by amplifying the resistance of the lowland matrix that surrounds tropical alpine islands. Alpine areas of the tropical Andes constitute the largest of all tropical alpine regions worldwide. They experience a particularly harsh climate, and they are fragmented into tropical alpine islands at various spatial scales. These factors generate unique patterns of continental insularity, whose impacts on biodiversity remain to be examined precisely. By reviewing existing literature and by presenting unpublished data on beta-diversity and endemism for a wide array of taxonomic groups, we aimed at providing a clear, overall picture of the isolation-biodiversity relationship in the tropical alpine environments of the Andes. Our analyses showed that (1) taxa with better dispersal capacities and wider distributions (e.g., grasses and birds) were less restricted to alpine areas at local scale; (2) similarity among communities decreased with spatial distance between isolated alpine areas; and (3) endemism reached a peak in small alpine areas strongly isolated from main alpine islands. These results pinpoint continental insularity as a powerful driver of biodiversity in the tropical High Andes. A combination of human activities and warming is expected to increase the effects of continental insularity in the next decades, especially by amplifying the resistance of the lowland matrix that surrounds tropical alpine islands.
dcterms:title
Biodiversity patterns and continental insularity in the tropical High Andes Biodiversity patterns and continental insularity in the tropical High Andes
skos:prefLabel
Biodiversity patterns and continental insularity in the tropical High Andes Biodiversity patterns and continental insularity in the tropical High Andes
skos:notation
RIV/60076658:12310/14:43887323!RIV15-MSM-12310___
n3:aktivita
n12:P
n3:aktivity
P(LM2010009)
n3:cisloPeriodika
4
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n10:7699700
n3:druhVysledku
n13:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
5334
n3:idVysledku
RIV/60076658:12310/14:43887323
n3:jazykVysledku
n8:eng
n3:klicovaSlova
biogeography; macroinvertebrates; streams; diversity; paramo plants; northern chile; alpine environment; community structure; species distribution; altitudinal gradient
n3:klicoveSlovo
n5:paramo%20plants n5:alpine%20environment n5:species%20distribution n5:diversity n5:macroinvertebrates n5:streams n5:northern%20chile n5:biogeography n5:community%20structure n5:altitudinal%20gradient
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[B89BA6E04FBC]
n3:nazevZdroje
ARCTIC ANTARCTIC AND ALPINE RESEARCH
n3:obor
n11:EH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
7
n3:projekt
n14:LM2010009
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
46
n3:tvurceVysledku
Dangles, Olivier Beck, Stephan Jacobsen, Dean Macek, Petr Anthelme, Fabien Moret, Pierre Meneses, Rosa I.
n3:wos
000346219500011
s:issn
1523-0430
s:numberOfPages
18
n15:doi
10.1657/1938-4246-46.4.811
n18:organizacniJednotka
12310