Biogeography of wild Arachis (Leguminosae): distribution and environmental characterisation.

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dc.creatorFERGUSON, M. E.
dc.creatorJARVIS, A.
dc.creatorSTALKER, H. T.
dc.creatorWILLIAMS, D. E.
dc.creatorGUARINO, L.
dc.creatorVALLS, J. F. M.
dc.creatorPITTMAN, R. N.
dc.creatorSIMPSON, C. E.
dc.creatorBRAMEL, P. J.
dc.date2018-06-11T16:59:10Z
dc.date2018-06-11T16:59:10Z
dc.date2005-09-05
dc.date2005
dc.date2018-06-11T16:59:10Z
dc.date.accessioned2026-07-07T11:50:41Z
dc.descriptionGeographic Information System (GIS) tools are applied to a comprehensive database of 3514 records of wild Arachis species to assist in the conservation and utilisation of the species by: (a) determining the distributional range of species and their abundance; (b) characterising species environments; (c) determining the geographical distribution of species richness; and (d) determining the extent to which species are associated with river basins. Distributional ranges, climatic variables and indices of endemism for each species are tabulated. A. duranensis Krapov. & W.C. Gregory, the most probable donor of the A genome to the cultivated peanut, is distributed in close proximity to both the proposed donor of the B genome, A. ipaënsis, and the closest wild relative of the cultigen, A. monticola Krapov. & Rigoni. This region in the eastern foothills of the Andes and the adjoining chaco regions of Argentina, Bolivia and Paraguay, is a key area for further exploration for wild Arachis. An area of particularly high species richness occurs in the State of Mato Grosso, close to the Gran Pantanal in southwest Brazil. Seventy-one percent of the species were found to have some degree of association with water catchment areas, although in most cases it was difficult to determine whether this was due to climatic adaptation reasons, restricted dispersal due to geocarpic habit, or the role of watercourses as a principal dispersal agent. In only two cases could climatic adaptation be eliminated as the reason for species distribution.
dc.identifierBiodiversity and Conservation, v. 14, n. 7, p. 1777-1798, 2005.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/186086
dc.identifier.urihttp://hdl.handle.net/123456789/514728
dc.languageeng
dc.rightsopenAccess
dc.subjectEcogeografia
dc.subjectDistribuição Geográfica
dc.subjectSistema de Informação Geográfica
dc.subjectArachis
dc.titleBiogeography of wild Arachis (Leguminosae): distribution and environmental characterisation.
dc.typeArtigo de periódico

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