Cooperative Extension is an ideal facilitator for volatile wildlife issues such as endangered species management on private lands. Often, lack of trust in government agencies or fear of Endangered Species Act regulations hinders conservation efforts on these private lands. Extension personnel have close ties to local affected communities and thus can be instrumental in educating landowners rega...

Behavioural ecologists often see little connection between the current conservation crisis and the future of their discipline. This view is myopic because our abilities to investigate and interpret the adaptive significance and evolutionary histories of behaviours are increasingly being compromised in human-dominated landscapes because of species extinctions, habitat destruction, invasive speci...

Hybridization between an abundant species and an endangered species is cause for concern. When such hybridization is observed, it is both urgent and necessary to assess the level of threat posed to the endangered species. We report the first evidence of natural hybridization between two equids: the endangered Grevy’s zebra Equus grevyi and the abundant plains zebra Equus burchelli. Grevy’s zebr...

Honest, it's just a " narrow regulatory change, " US Interior Secretary Dirk Kempthorne told reporters when his department was revealed to be altering the Endangered Species Act in the last months of the Bush Administration. Journalists didn't buy it. As the New York Times put it in an editorial, " The Bush administration has never masked its distaste for most environmental laws or its ambition...

Fast environmental variations due to climate change can cause mass decline or even extinctions of species, having a dramatic impact on the future of biodiversity. During the last decade, different approaches have been proposed to track and monitor endangered species, generally based on costly semi-automatic systems that require human supervision adding limitations in coverage and time. However,...

the purpose of this study was to estimate relative potential hazards to birds and bats from wind developments in texas. we compiled lists of rare, threatened, or endangered species, along with their respective ranges in texas. using a geographic information system (gis), we calculated a potential hazard index (phi) for 31 bird and ten bat species based upon the percentage of known or observed ...

Measurements of toxicity based on individuals, such as the LC(50) (concentration that kills 50% of a population), and effects on reproduction are used extensively in determining ecological risk, in particular, for endangered or threatened species. An underlying assumption is that individual-based toxicity metrics for one species can be directly compared with that for another species. However, t...

2012. Annie Sokol’s email address is [email protected] and her telephone number is 301–975–2006. Public Participation: The ISPAB agenda will include a period of time, not to exceed thirty minutes, for oral comments from the public (Friday, June 1, 2012, between 8:45 a.m. and 9:15 a.m.). Speakers will be selected on a first-come, first served basis. Each speaker will be limited to five minute...

White abaloneHaliotis sorenseniwas listed as endangered in 2001 because of severe declines throughout southern California due to overfishing. Populations continue to decline despite the closure of the fishery in 1996. There has been little to no evidence of recruitment in southern California from population surveys and in artificial reefs targeting white abalone recruitment since the listing of...

Thirty-one species of amphibians and reptiles have been reliably reported from Cedar Bog, Ohio including: 5 salamanders, 11 frogs and toads, 5 turtles, 1 lizard and 9 snakes, or approximately 40% of the total number of species reported for the state. Four of these species are classified as potentially threatened, endangered or of special interest in Ohio. Environmental changes due to dredging o...