Show simple item record

dc.contributor.authorRey Benayas, José María 
dc.contributor.authorScheiner, Samuel M.
dc.contributor.authorGarcía Sánchez-Colomer, Manuel
dc.contributor.authorLevassor, Catherine
dc.identifier.bibliographicCitationConservation Ecology [online], 1999, v. 3, n. 1, art. 5en
dc.descriptionThe copyright to this article passed from the Ecological Society of America to the Resilience Alliance on 1 January 2000. Published in the Journal Ecology and Society (formerly Conservation Ecology)en
dc.description.abstractWe examined patterns of commonness and rarity among plant species in montane wet grasslands of Iberia. This examination is set within two contexts. First, we expanded on an earlier scheme for classifying species as common or rare by adding a fourth criterion, the ability of that species to occupy a larger or smaller fraction of its potential suitable habitats, i.e., habitat occupancy. Second, we explicated two theories, the superior organism theory and the generalist/specialist trade-off theory. The data consisted of 232 species distributed among 92 plots. The species were measured for mean local abundance, size of environmental volume occupied, percentage of volume occupied, range within Iberia, and range in Europe and the Mediterranean basin. In general, all measures were positively correlated, in agreement with the superior organism theory. However, specialist species were also found. Thus, patterns of commonness and rarity may be due to a combination of mechanisms. Analyses such as ours can also be used as a first step in identifying habitats and species that may be endangered.en
dc.description.sponsorshipFunding was provided by the projects "Humedales en áreas de descarga de acuíferos en territorios graníticos (Sierra de Guadarrama)" (Comunidad Autónoma de Madrid nº C129/91), and "Determinantes de la diversidad biológica en ecosistemas mediterraneós. Papel de los procesos locales y regionales" (DGICYT). Additional funding was provided by the Universidad de Alcalá for travel by S. M. Scheineren
dc.publisherThe Resilience Allianceen
dc.rights© The Resilience Alliance, 1999en
dc.subjectEndangered speciesen
dc.subjectGeneralist/specialist trade-offen
dc.subjectGeographic rangeen
dc.subjectHabitat occupancyen
dc.subjectHabitat specificityen
dc.subjectLocal abundanceen
dc.subjectMontane grasslandsen
dc.subjectSuperior organism theoryen
dc.titleCommonness and rarity: theory and application of a new model to Mediterranean montane grasslandsen
dc.subject.ecienciaMedio Ambientees_ES
dc.subject.ecienciaEnvironmental scienceen
dc.contributor.affiliationUniversidad de Alcalá. Departamento de Ciencias de la Vida. Unidad docente Ecología

Files in this item


This item appears in the following Collection(s)