Accurate trend estimates are necessary for understanding which species are declining and which are most in need of conservation action. Imperfect species detection may result in unreliable trend estimates because this may lead to the overestimation of declines. Because many management decisions are based on population trend estimates, such biases could have severe consequences for conservation ...

Global commitments to halt biodiversity decline mean that it is essential to monitor species' extinction risk. However, the work required to assess extinction risk is intensive. We demonstrate an alternative approach to monitoring extinction risk, based on the response of species to external conditions. Using retrospective International Union for Conservation of Nature Red List assessments, we ...

the effectiveness of any drug supply systems in providing a trustworthy supply of essential drugs is a critical issue. to evaluate this effectiveness, it is necessary to watch over the status of the essential medicines in any country impartially and continuously. some countries and also the world health organization (who) have codified a list of minimum medicines needed for a basic health care ...

We report the sighting of a large flock immature Gyps himalayensis (Hume, 1869) in Garhwal Himalayas area outer Himalayan range. This avian species is classified as near–threatened according to IUCN Red List. recommend future surveys and documentation breeding juvenile vagrant sites this order determine population numbers, moult schedules, trends area.

a) Audubon Watchlist: Red or Yellow List rankings b) Partners in Flight North American Landbird Conservation Plan (Rich et al. 2004): Watch List ranking c) Intermountain West Waterbird Conservation Plan (Ivey and Herziger 2006): High or Moderate Concern rankings d) Intermountain West Regional Shorebird Plan (Oring et al. 2000): Critically Important or Very Important rankings e) Pacific Flyway p...

Abstract Protected areas (PA) in biodiversity hotspots face the challenge of monitoring large numbers locally rare and threatened plant species at times with limited budgets. Prioritising according to their local extinction risk could help PA managers decide which monitor. However, there is often very little information available on occurrence PA. Because this, rely national or global Red List ...

We compiled a check list of the herpetofauna of Nuevo León. We documented 132 species (23 amphibians, 109 reptiles), representing 30 families (11 amphibians, 19 reptiles) and 73 genera (17 amphibians, 56 reptiles). Only two species are endemic to Nuevo León. Nuevo León contains a relatively high richness of lizards in the genus Sceloporus. Overlap in the herpetofauna of Nuevo León and states it...