Phylogenetic analysis of niche divergence reveals distinct evolutionary histories and climate change implications for tropical carnivorous pitcher plants

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Schwallier, RachelNat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands. (author)

Phylogenetic analysis of niche divergence reveals distinct evolutionary histories and climate change implications for tropical carnivorous pitcher plants

Article/chapterEnglish2016

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2015-10-07
Wiley,2016
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LIBRIS-ID:oai:DiVA.org:uu-280094
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-280094URI
https://doi.org/10.1111/ddi.12382DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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AimTo analyse the underpinnings of historical drivers of diversity and their contributions to current distributions and future roles in a changing climate, we studied the relationship between ecological niche divergence and phylogenetic signal in tropical carnivorous pitcher plants. LocationSoutheast Asia. MethodsEstimates of realized ecological niches were reconstructed and plotted along a newly created multilocus molecular phylogeny. Phylogenetic signal was analysed by comparisons of calculated phylogenetic relatedness with ecological niche divergence. Current and projected future potentially suitable habitats were mapped for several species of plants with variable evolutionary histories and distributions. ResultsHighland and lowland species had distinct phylogenetic signals. Higher altitude species had significantly lower molecular divergence as compared with the lowland species, yet ecological niches with less overlap. When projected onto a future climate scenario, highland species lose a greater amount of potentially suitable habitat compared to lower altitude species, and the majority ofstudied higher altitude species will face an overall loss of future suitable habitat. Main conclusionWe conclude that distinct phylogenetic signals not only unravel differing evolutionary histories but also show that the implications of species' tolerances to future changing climate vary. Over the past million years, historical climate change shaped the differing evolution and ecological niches of highland and lowland tropical pitcher plant species. Rapid, recent radiations of the higher altitude species are reflected in limited molecular divergence, which is in sharp contrast with the more gradually evolved and genetically distinct lower altitude species in our study. Our projections for future potentially suitable habitats show that on-going climate shifts will have detrimental effects on especially the higher altitude species due to a narrower niche tolerance and dramatic loss of potentially suitable habitat.

Subject headings and genre

NATURVETENSKAP Biologi Botanik hsv//swe
NATURAL SCIENCES Biological Sciences Botany hsv//eng
NATURVETENSKAP Biologi Ekologi hsv//swe
NATURAL SCIENCES Biological Sciences Ecology hsv//eng
climate change
ecological niche modelling
molecular divergence
Nepenthes
niche divergence
phylogenetic signal

Added entries (persons, corporate bodies, meetings, titles ...)

Raes, NielsNat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands. (author)
de Boer, Hugo J.Uppsala universitet,Systematisk biologi,Nat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands.;Univ Oslo, Nat Hist Museum, POB 1172, NO-0318 Oslo, Norway.(Swepub:uu)hujbo499 (author)
Vos, Rutger A.Nat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands. (author)
van Vugt, Rogier R.Hortus Bot Leiden Univ, Rapenburg 73, NL-2311 GJ Leiden, Netherlands. (author)
Gravendeel, BarbaraNat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands.;Univ Appl Sci Leiden, Zernikedreef 11, NL-2333 CK Leiden, Netherlands. (author)
Nat Biodivers Ctr, Darwinweg 2, NL-2333 CR Leiden, Netherlands.Systematisk biologi (creator_code:org_t)

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In:Diversity & distributions: Wiley22:1, s. 97-1101366-95161472-4642

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