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Papers in this group tagged with "mexico"

1 - 20 of 54
  1. A study of richness and endemism of the freshwater fishes of Mexico, was carried out in order to identify hotspots and inform conservation efforts. This was done by mapping and overlaying individual species distributions by means of geographical…
  2. The Rufous-backed Robin Turdus rufopalliatus is a bird endemic to the Pacific slope of Mexico. The species recently established populations in several localities in the Mexican Central Highlands. Based on available data, we modelled the range…
  3. Summary * •Poleward Pleistocene plant migration has been an important process structuring modern temperate and boreal plant communities, but the contribution of equatorward migration remains poorly understood. Paleobotanical evidence suggests…
  4. Three novel benzophenones (1-3) were obtained from the roots of Securidaca diversifolia (L.) S.F. Blake along with two known benzylbenzoates and isovanilline. Compound 2 (2,4-dihydroxy-3,3'-dimethoxy-benzophenone) showed moderate inhibitory activity…
  5. A systematic sampling of aquatic birds was conducted over a period of two years in the state of Querétaro, Mexico. Twenty nine species have been added to the official list of species for the state, nine of which have few records in the interior of…
  6. Aim The jaguar, Panthera onca, is a species of global conservation concern. In Mexico, the northernmost part of its distribution range, its conservation status, is particularly critical, while its potential and actual distribution is poorly known.…
  7. Panbiogeographic analysis of Vexillata (Nematoda: Ornithostrongylidae) and its hosts (Mammalia: Rodentia). A panbiogeographic analysis was carried out, based on a parsimony analysis of ende- micity (PAE) to analyze the species of helminth intestinal…
  8. Report of the Northern Saw-whet Owl (Aegolius acadicus) in the mountains and valleys of western Oaxaca, Mexico. Abstract We mist netted an adult of the Northern Saw-whet Owl (Aegolius acadicus) in San Pedro Totomachapam, municipality of Zimatlán de…
  9. We performed a systematic analysis of the distribution of the Crotalus species in Mexico to depict the places of high species concentration and to evaluate its representation within the federal natural protected areas (NPAs) scheme. Based on…
  10. Despite an increasing amount of data on the effects of tropical land use on continental forest fauna and flora, it is debatable whether the choice of the indicator variables allows for a proper evaluation of the role of modified habitats in…
  11. Ecological niche models provide useful predictions of species distributions, but may fail to detect reductions in distribution due to factors other than habitat loss, such as hunting or trade. From 2001 to 2009, we conducted field-surveys along the…
  12. To detect differences in the information available on freshwater fish species found in Mexican biosphere reserves, the number of species considered in three sources of information: management programmes, Global Biodiversity Information Facility…
  13. Analyses of richness and endemism of Cyatheales (tree ferns) in tropical America were performed and evidence of a diversity gradient is presented. For this, the occurrence ranges of 239 species were plotted into a 5 9 5 grid-cell map and then…