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Zookeys. 2014 Jun 23;(419):29-71. doi: 10.3897/zookeys.419.7180. eCollection 2014.

Ecological biogeography of the terrestrial nematodes of victoria land, antarctica.

ZooKeys

Byron J Adams, Diana H Wall, Ross A Virginia, Emma Broos, Matthew A Knox

Affiliations

  1. Department of Biology, and Evolutionary Ecology Laboratories, Brigham Young University, Provo, UT 84602.
  2. Department of Biology and Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1499.
  3. Environmental Studies Program, Dartmouth College, Hanover, NH 03755.
  4. Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1499.

PMID: 25061360 PMCID: PMC4109451 DOI: 10.3897/zookeys.419.7180

Abstract

The terrestrial ecosystems of Victoria Land, Antarctica are characteristically simple in terms of biological diversity and ecological functioning. Nematodes are the most commonly encountered and abundant metazoans of Victoria Land soils, yet little is known of their diversity and distribution. Herein we present a summary of the geographic distribution, habitats and ecology of the terrestrial nematodes of Victoria Land from published and unpublished sources. All Victoria Land nematodes are endemic to Antarctica, and many are common and widely distributed at landscape scales. However, at smaller spatial scales, populations can have patchy distributions, with the presence or absence of each species strongly influenced by specific habitat requirements. As the frequency of nematode introductions to Antarctica increases, and soil habitats are altered in response to climate change, our current understanding of the environmental parameters associated with the biogeography of Antarctic nematofauna will be crucial to monitoring and possibly mitigating changes to these unique soil ecosystems.

Keywords: Biodiversity; Eudorylaimus; Geomonhystera; Panagrolaimus; Plectus; Scottnema; climate change; dispersal; freeliving nematodes; habitat suitability; invasive species; soil

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