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Endemicity and clim...
Endemicity and climatic niche differentiation in three marine ciliated protists
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- Williams, Richard A. J. (författare)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Univ Kansas, USA;Univ Complutense Madrid, Spain,Ctr Ecol & Evolut Microbial Model Syst EEMiS
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- Owens, Hannah L. (författare)
- Univ Kansas, USA;Univ Florida, USA
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- Clamp, John (författare)
- North Carolina Cent Univ, USA
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- Peterson, A. Townsend (författare)
- Univ Kansas, USA
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- Warren, Alan (författare)
- Nat Hist Museum, UK
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- Martin-Cereceda, Mercedes (författare)
- Univ Complutense Madrid, Spain
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(creator_code:org_t)
- 2018-07-18
- 2018
- Engelska.
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Ingår i: Limnology and Oceanography. - : Wiley-Blackwell. - 0024-3590 .- 1939-5590. ; 63:6, s. 2727-2736
- Relaterad länk:
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https://onlinelibrar...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The biogeographic pattern of single-celled eukaryotes (protists), including ciliates, is poorly understood. Most marine species are believed to have a relatively high dispersal potential, such that both globally distributed and geographically isolated taxa exist. Primary occurrence data for three large, easily identified ciliate species, Parafavella gigantea, Schmidingerella serrata, and Zoothamnium pelagicum, and environmental data drawn from the National Oceanic and Atmospheric Administration's World Ocean Atlas were used to estimate each species' spatial and environmental distributions using Maxent v3.3.3k. The predictive power of the models was tested with a series of spatial stratification studies, which were evaluated using partial receiver operating characteristic (ROC) statistics. Differences between niches occupied by each taxon were evaluated using background similarity tests. All predictions showed significant ability to anticipate test points. The null hypotheses of niche similarity were rejected in all background similarity tests comparing the niches among the three species. This article provides the first quantitative assessment of environmental conditions associated with three species of ciliates and a first estimate of their spatial distributions in the North Atlantic, which can serve as a benchmark against which to document distributional shifts. These species follow consistent, predictable patterns related to climate and environmental biochemistry; the importance of climatic conditions as regards protist distributions is noteworthy considering the effects of global climate change.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Akvatisk ekologi
- Aquatic Ecology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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