Preventing rapid extinction of bighorn sheep
A study by USGS researchers found that large habitat patches are crucial for bighorn sheep persistence and growth rates. Small patches with high-quality habitat can still warrant restoration efforts.
Animal Habitats
Articles tagged with Animal Habitats
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UF researchers: beach mice face high probability of extinction
Researchers at the University of Florida have concluded that the few remaining populations of beach mice on the Florida and Alabama coasts are in substantial danger of extinction from hurricanes and continuing loss of habitat to development. The study predicts a 37-57% chance of extinction in 25 years and a 59-80% chance in 50 years.
Salmon life stories recorded in strontium
Scientists have discovered a natural method to track Atlantic salmon using strontium isotopes, which can reveal the fish's origin and migration patterns. This discovery could provide valuable insights into salmon habitat restoration efforts and inform more effective conservation strategies.
Analysis of impact studies reveals how bottom fishing affects seafloor denizens
A meta-analysis of 39 impact studies reveals that bottom fishing gear types significantly affect sediment organism disturbance. Inter-tidal dredging causes the most negative impact, followed by scallop and inter-tidal raking.
Taking the long view: examining factors which influence Northern Spotted Owls
The study found that cold, wet springs decrease survival rates of adult owls, while a mixture of old growth forest and other vegetation types promotes high survival and reproductive output. Habitat quality also buffers owls during unfavorable weather periods, but current logging practices do not generate the observed mosaic.
Endangered butterfly needs proper habitat, special nectar
The Fender's blue butterfly requires specific nectar and host plants to complete its reproductive cycle. A new study by University of California, Santa Barbara researcher Cheryl B. Schultz found that the species needs approximately 20 milligrams of wild flower nectar per square meter to support its population.
Extinction-prone sunfish and suckers identified
A Penn State biologist has identified 13 sunfish and sucker species as being at high risk of extinction, primarily due to their isolated distributions and limited geographical range sizes. The study found that larger body size is associated with a higher risk of extinction in sunfish, but not in suckers.
Jays and cars don't mix
Researchers found that Florida scrub-jays nesting along roadsides die at a higher rate than those on non-road territories, with up to half of new breeders dying in their first two years. The roadside death rate is particularly high for young fledglings and newly arrived breeders.
Chinese 'dragon' nears extinction, biologists warn
The Chinese alligator is critically endangered with fewer than 150 remaining in the wild. Conservationists believe that restoring populations through habitat improvements and captive breeding can help stage a comeback for this culturally significant species.
Bruce Babbitt Calls For Linking Open Space And Conservation
Babbitt envisions integrating conservation biology into urban planning to preserve at-risk species habitats. The approach was successfully implemented in Southern California's Habitat Conservation Plans covering 210,000 acres.
Estuaries Vital To The Productivity Of Southeastern U.S. Fisheries
Research suggests that estuaries are vital habitats for juvenile fish in the Southeastern US, providing better sanctuaries and food supplies than offshore waters. Degradation of estuarine habitats due to human activities, such as overfishing and nutrient pollution, threatens the productivity of fisheries.
Migratory songbird breeding linked to winter habitat
Researchers have found that migratory birds' winter habitats influence their breeding success by affecting arrival time and physical condition. American redstarts in wetter environments maintained better body mass and robust condition, while those in drier environments lost mass and showed signs of deteriorating condition.
Extraterrestrial Cuisine Cooking In Cornell Lab
A team of Cornell experts is creating a database of food-processing information and menu items for NASA's future lunar and Martian colonies. The recipes, which include vegetarian options like seitan tacos and pasta primavera, will be grown hydroponically in space farms using crops such as wheat, potatoes, rice, soy, and peanuts.
Big Cat Expert Applauds Listing Of Jaguar As Endangered In U.S.
A recent study and court ruling have led to the listing of jaguar as an endangered species in the US. The decision is based on evidence of rare sightings and potential population dispersal from Mexico.
WWF, WCS Unveil New Strategy To Save Tigers
The WWF and WCS have unveiled a new strategy to conserve tigers by identifying the top 25 high-priority areas for long-term survival. The framework, which will be implemented over three years, aims to stop international illegal trade in tiger products and develop conservation programs.
Imperiled Shorebird Struggles For Recovery
The Piping Plover population has shown a significant increase of 7% since the last census in 1991, primarily attributed to conservation efforts along the Atlantic coast. However, midcontinent bird populations have declined due to massive nest flooding on the Missouri River and lack of habitat improvement in prairie potholes.
Field Mice Migration Study Could Help Conservation
A multiyear project may provide ecological insights for animal conservation, as tiny prairie voles adjusted to both immigration and emigration among different habitats to maintain a stable overall population. The study found that birth and death rates compensated for movement among habitats with varying environments.