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Citation for Study 16313

Citation title: "A comparative analysis of island floras challenges taxonomy-based biogeographical models of speciation ".

Study name: "A comparative analysis of island floras challenges taxonomy-based biogeographical models of speciation ".

This study is part of submission 16313 (Status: Published).

Citation

Igea J., Bogarin D., Papadopulos A.S., & Savolainen V. 2014. A comparative analysis of island floras challenges taxonomy-based biogeographical models of speciation. Evolution, .

Authors

Igea J. (submitter) +44 (0)20 7594 2257
Bogarin D.
Papadopulos A.S.
Savolainen V.

Abstract

Speciation on islands, and particularly the divergence of species in situ, has long been debated. Here, we present one of the first, complete assessments of the geographic modes of speciation for the flora of a small, oceanic island. Cocos Island (Costa Rica) is pristine; it is located 550 km off the Pacific coast of Central America. It harbours 189 native plant species, 33 of which are endemic. Using phylogenetic data from insular and mainland congeneric species, we show that all of the endemic species are derived from independent colonisation events rather than in situ speciation. This is in sharp contrast to the results of a study carried out in a comparable system, Lord Howe Island (Australia), where as much as 8.2% of the plant species were the product of sympatric speciation. Differences in physiography and age between the islands may be responsible for the contrasting patterns of speciation observed. Importantly, comparing phylogenetic assessments of the modes speciation with taxonomy-based measures shows that widely used island biogeography approaches overestimate rates of in situ speciation.

Keywords

Cocos Island, cladogenesis, sympatric speciation, phylogeny

External links

About this resource

Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S16313
Other versions: Nexus NeXML

Show BibTeX reference

		@ARTICLE{TreeBASE2Ref23607,
	 author = {Javier  Igea and Diego  Bogarin and Alexander ST Papadopulos and Vincent  Savolainen},
	 title = {A comparative analysis of island floras challenges taxonomy-based biogeographical models of speciation },
	 year = {2014},
	 keywords = {Cocos Island, cladogenesis, sympatric speciation, phylogeny },
	 doi = {},
	 url = {http://},
	 pmid = {},
	 journal = {Evolution},
	 volume = {},
	 number = {},
	 pages = {},
	 abstract = {Speciation on islands, and particularly the divergence of species in situ, has long been 
debated. Here, we present one of the first, complete assessments of the geographic 
modes of speciation for the flora of a small, oceanic island. Cocos Island (Costa Rica) is 
pristine; it is located 550 km off the Pacific coast of Central America. It harbours 189 
native plant species, 33 of which are endemic. Using phylogenetic data from insular and 
mainland congeneric species, we show that all of the endemic species are derived from 
independent colonisation events rather than in situ speciation. This is in sharp contrast 
to the results of a study carried out in a comparable system, Lord Howe Island 
(Australia), where as much as 8.2% of the plant species were the product of sympatric 
speciation. Differences in physiography and age between the islands may be responsible 
for the contrasting patterns of speciation observed. Importantly, comparing phylogenetic 
assessments of the modes speciation with taxonomy-based measures shows that widely 
used island biogeography approaches overestimate rates of in situ speciation. }
}

Show RIS reference

TY - JOUR
ID - 23607
AU - Igea,Javier
AU - Bogarin,Diego
AU - Papadopulos,Alexander ST
AU - Savolainen,Vincent
T1 - A comparative analysis of island floras challenges taxonomy-based biogeographical models of speciation
PY - 2014
KW - Cocos Island
KW - cladogenesis
KW - sympatric speciation
KW - phylogeny
UR - http://dx.doi.org/
N2 - Speciation on islands, and particularly the divergence of species in situ, has long been
debated. Here, we present one of the first, complete assessments of the geographic
modes of speciation for the flora of a small, oceanic island. Cocos Island (Costa Rica) is
pristine; it is located 550 km off the Pacific coast of Central America. It harbours 189
native plant species, 33 of which are endemic. Using phylogenetic data from insular and
mainland congeneric species, we show that all of the endemic species are derived from
independent colonisation events rather than in situ speciation. This is in sharp contrast
to the results of a study carried out in a comparable system, Lord Howe Island
(Australia), where as much as 8.2% of the plant species were the product of sympatric
speciation. Differences in physiography and age between the islands may be responsible
for the contrasting patterns of speciation observed. Importantly, comparing phylogenetic
assessments of the modes speciation with taxonomy-based measures shows that widely
used island biogeography approaches overestimate rates of in situ speciation.
L3 -
JF - Evolution
VL -
IS -
ER -