During December 1983 and early January 1984, about 200 Canada geese (Branta canadensis) died of lead poisoning at Parker River National Wildlife Refuge on Plum Island, Massachusetts. In an effort to determine the source of lead, 100 bottom samples were taken from a refuge impoundment where much of the mortality/morbidity occurred. An average of 157,150 pellets/ha was found with a range of 64,58...

In this essay, I examine the 2016 takeover of Malheur National Wildlife Refuge. The principal instigators occupation, Bundy family Nevada, pointed to federally owned public lands as primary reason for their takeover, citing allegedly unconstitutional government ownership these lands. contend that Bundys’ arguments about exemplify rhetorical strategies further one ends settler colonialism; remak...

Whooping Crane (Grus americana) fecal samples were collected from Matagorda Island National Wildlife Refuge (MINWR) during winter and fall of 1993-94 (Winter-1; n = 59), and Aransas National Wildlife Refuge (ANWR) during winter and fall of 1993-94 (n = 102) and 1994-95 (Winter-2; n = 257) to study crane diets and compare patterns of food use in these areas. Food items varied between areas, acro...

In this study, maximum entropy models were developed in four seasons to evaluate habitat suitability and factors affecting Asian Houbara in Iran. Environmental variables used in modeling consisted of 42 environmental and climate variables for Nayband wildlife refuge and 36 environmental and climate variables for Petregan protected area. Also, seasonal overlap area were obtained using the ENM TO...

The Rockefeller Wildlife Refuge, located along the Chenier Plain in Southwest Louisiana, was location of sequential landfall two major hurricanes 2020 hurricane season. To protect rapidly retreating coastline a system breakwaters constructed, which partially completed by Multi-institutional, multi-disciplinary rapid response deployments wave gauges, piezometers, geotechnical measurements, veget...

Managers of large river basins face conflicting demands for water resources such as wildlife habitat, water supply, wastewater assimilative capacity, flood control, hydroelectricity, and recreation. The Savannah River Basin, for example, has experienced three major droughts since 2000 that resulted in record low water levels in its reservoirs, impacting dependent economies for years. The Savann...

Ficus is a pan-tropical genus of trees, shrubs and vines occupying a wide variety of ecological niches; most are evergreen, but some deciduous species are endemic to areas outside of the tropics and to higher elevations. Healthy Wistar rats weighing between 180-220 g were used to carry out acute oral toxicity studies by the ‘staircase’ method. All successive extracts of Anjir leaves in 0.5% twe...

landscape ecology as a modern interdisciplinary science offers new concepts, theories, and methods for land evaluation and management. a main part of landscape ecology is describing patterns in the landscape and interpreting the ecological effects of these patterns on flora, fauna, flow of energy and materials. remote sensing and gis techniques have a high ability for landscape researchers to s...

the recognition of human bioclimatic comfort in geographical area is an important factor for planning of ecotourism. climate is a very important component to identify natural landscape values. for better planning and management of landscape units such as recreational purposes, there is a need for emphasis on the visual aesthetic aspects, and also for understanding the climatic effects on recrea...