Tables Table 1 Calculation of weighted average fish concentrations for piscivorous birds and threatened and endangered species Table 2 Alternate Evaluation: IMPG attainment for benthic invertebrates for selected SED/FP combinations Table 3 Alternate Evaluation: IMPG attainment for amphibians (as represented by wood frog) for selected SED/FP combinations Table 4 Alternate Evaluation: IMPG attain...

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...

The leopard Panthera pardus, categorized globally as Near Threatened on the IUCN Red List, has the widest distribution of any wild felid species, although in Asia it has declined dramatically and five subspecies are Endangered or Critically Endangered. In China at least three subspecies have been reported to occur throughout much of the country, and in  the population was estimated to be ,...

Summary Descriptions and illustrations are presented for three new species to science, Vepris udzungwa Cheek , V. lukei (both Udzungwa Mts, Tanzania), robertsoniae Q.Luke & (SE Kenyan kaya forests), in the context of a synoptic taxonomic revision with an identification key all known unifoliolate taxa continental Africa. The described illustrated, while remaining 10 given skeletal treatments...

The list of threatened and endangered species is growing rapidly, due to various anthropogenic causes. Many endangered species are present in captivity and actively managed in breeding programs in which often little is known about the founder individuals. Recent developments in genetic research techniques have made it possible to sequence and study whole genomes. In this study we used the criti...

Many endangered or threatened ecosystems depend on ground water for their survival. Nebraska's saline wetlands, home to a number of endangered species, are ecosystems whose development, sustenance, and survival depend on saline ground water discharge at the surface. This study demonstrates that the saline conditions present within the eastern Nebraska saline wetlands result from the upwelling o...

© The Ecological Society of America www.frontiersinecology.org T US Endangered Species Act requires that a recovery plan be developed for each species listed as threatened or endangered with extinction, with the aim of helping the species to recover so it can eventually be removed from Federal listing (ie delisting). Tremendous effort and considerable funds have been invested in the development...

Determining the immunological phenotype of endangered and threatened populations is important to identify those vulnerable to novel pathogens. Among mammals, members of the order Carnivora are particularly threatened by diseases. We therefore examined the constitutive innate immune system, the first line of protection against invading microbes, of six free-ranging carnivore species; the black-b...