We compared the uses and definitions of habitat-related terms in 50 articles from 1980 to 1994 to operational definitions we derived from the literature. Only 9 (18%) of the articles we reviewed defined and used habitat-related terms consistently and according to our definitions of the terms. Forty-seven articles used the term "habitat;" however, it was only defined and used consistent with our...

The present study was conducted to assess the possible risks induced by construction of Gavi Dam in Ilam Province; western part of Iran, using MIKE-11 model and technique for order of preference by similarity to ideal solution. For this purpose, vulnerable zone of the dam site against the flooding risk of Gavi River was calculated for different return periods. The flooding zones were stimulated...

Global positioning system (GPS) collars are changing the face of wildlife research, yet they still possess biases such as habitatinduced frx-rate bias, which is a serious concern for habitat selection studies. We studied GPS bias in the Central Canadian Rockies, a critical area for wildlife conservation, to provide a statistical approach to correct GPS habitat bias for habitat selection studies...

With few exceptions, the US Endangered Species Act requires the designation of “critical habitat” for threatened and endangered species. This provides important protections, including a prohibition against adverse modification of designated habitat by federal agencies. Scientists with the US Fish and Wildlife Service develop critical habitat designations, which are then peer reviewed before bei...

This paper presents the results of two nonstatistical surveys (completed in 1981 and 1986) that solicited information from state and federal agencies concerning instream flow issues and practices in North America. Forty-six states and 12 Canadian provinces responded to the survey. Fifteen of the 46 states reported legislative recognition of instream flows for fisheries protection. In Canada, in...

The New England cottontail (Sylvilagus transitionalis) is a high conservation priority in the Northeastern United States and has been listed as a candidate species under the Endangered Species Act. Loss of early successional habitat is the most common explanation for the decline of the species, which is considered to require habitat with dense low vegetation and limited overstory tree canopy. F...

The Endangered Species Act of 1973, as amended, assigns the U.S. Fish and Wildlife Service the responsibility for listing species of plants and animals in the United States whose existence is either threatened or endangered. After a species is listed, the Service is responsible for, among other things, developing recovery plans, reviewing proposed federal actions to ensure that they do not comp...

We created several interactive learning objects that illustrate organisms within their natural habitats by linking videos to “hotspots” within panoramic vistas of the habitat; students can access these at will and in whatever order they choose. By linking other vistas to hotspots within the primary panorama, the student can take a virtual field trip, examining different views of that habitat, a...

this time each year, we're asked if there are any advantages to placing Christmas trees or other types of brush piles in lakes for habitat enhancement. To answer that question, we've provided excerpts from an article written by Dr. Mike Allen, Associate Professor here at UF's Dept. of Fisheries and Aquatic Sciences. 1 Dr. Allen specializes in fisheries ecology and has produced numerous studies ...