Endangered frogs coexist with fungus once thought fatal
...es have reached crisis proportions. In many areas, habitat loss is the likely culprit but, in 1996, it was suggested that some unknown disease had spread through the populations. In 1998, the fungus Batrachochytrium dendrobatidis was identified from sick and dead frogs and, since then, several lines of lab...Is more better: Counting birds may only tell part of the story
...t necessarily provide the full picture. In "Avian habitat evaluations: should counting birds count?" Carl Bo...ed that density could be a misleading indicator of habitat quality if it was disconnected from reproductive success or survival. After reviewing multiple st...Amphibians in dramatic decline; Up to 122 extinct since 1980
...urrently less of a problem. Other threats, such as habitat destruction, air and water pollution and consumer demand are leading causes of amphibian decline. Still, scientists are confident that an immediate commitment of resources and effort could reverse many of the present negative trends. Creating new...Researchers redrawing the Tree of Life
...ndicates a major shift from a shrub of terrestrial habitat to aquatic habitat," Hilu said. "That's a major change in structure and ecology." Hilu had been researching flowering plants throughout his career with previous NSF grants to Virginia Tech. He also has been working with grasses, the fourth larges...Large-scale forces shape local ocean life, global study shows
...seeds or vital nutrients or that provide important habitat for critical species. While scientists know that tropical coral reefs and the Amazon rainforest act as source areas, Witman said more areas must be identified. "This is particularly true in the marine environment," he said. "We don't know ...Predicting infection risk of mosquito-borne disease
...s flawed. The distribution of humans and suitable habitat for mosquito larvae varies across the landscape. And the density of mosquito populations varies seasonally, rising and falling with changes in rainfall, temperature, and humidity. Temporal and spatial variations in mosquito populations affect the rat...... However, animals also move through the matrix, or habitat between patches, and the influence of different matrix types on the effectiveness of corridors and stepping stones has never been evaluated experimentally. Researchers from Louisiana State University, Kristen Baum, Kyle Haynes, Forrest Dillemuth and...Global warming's impact on US plants, animals determined from review of dozens of studies
...serves that have flexible boundaries, and reducing habitat destruction and other stressors on the natural world. Implementing a very small carbon tax to promote reduced fossil fuel use also was recently recommended in an Oct. 15 Science article by Gary Yohe, the economist at Wesleyan University in Connectic...Spatial structure, dispersal, and management of a recovering raptor population
... wild species experience considerable variation in habitat quality. Ecological theory that considers how organisms disperse between good and bad habitats has shown that such spatial structure can strongly influence population dynamics, but real-world implications have rarely been found. In this study, resear...New Royal Society journal studies
... prior to human settlement, perhaps as a result of habitat loss through volcanism or disease. If our new estimates of moa numbers are correct then we need to think again about the factors that might have influenced these populations prior to the arrival of humans, perhaps gaining greater insight into modern ...Ancient marine invasion sheds light on diversity
...ty. One way to increase beta diversity is for the habitat distribution of populations to become much narrowe...r amounts of resources. The other way is that the habitat becomes much more diverse providing different habitat niches. The researchers want to test if the h...New study links low fish supply to increased bushmeat hunting
...in 1957 to nearly 18 million in 1996 -- as well as habitat degradation. But Atta-Mills specifically cited the intense harvesting of fish by the EU Fleet and called for policy reform to minimize the impact of foreign fleets on West African marine resources. The authors of the paper say that...A $2 Million NSF grant brings technology and biology together at UC Riverside
...es of birds, sensor networks track weather data on habitat microclimates and computers map out the potential damage from wildfires. This program will be shown at other dates and times during the month. Find out more at www.uctv.tv/search-details.asp?showID=8384 ...Eelgrass provides a refuge from predators for some fish species
...lantic seacoast have a long history of providing a habitat for fish and invertebrates of many species. Despit...h experiment after appropriate acclimation in each habitat type. Prey fish were provided in equally weighted rations and included silversides, tautog, cunner, ...Fragmented habitats no ultimate refuges for forest-dwelling tropical birds
...rvation Biology" paper. "Small patches of original habitat remain and, in time, secondary forests, gardens or...xplore how well some species survive in deforested habitat and whether some surviving species can persist in such landscapes. Their study focused on Brazil's A...Global assessments of biodiversity argue for expansion of protected areas in key regions
...now being expanded to assess the likely impacts of habitat loss and climate change. Gven Eken, of BirdLife International in the Netherlands, and colleagues advance criteria for the identification of key biodiversity areas (KBAs) for fine-scale gap analysis. KBAs are areas large enough (or sufficiently int...Northwestern and Chicago Botanic Garden join forces to train botanists
...xperiencing major environmental changes -- loss of habitat and biodiversity, extinction of species, global cl...y causes of species extinction or endangerment are habitat destruction, commercial exploitation (such as plant collecting), damage caused by non-native plants ...Revisiting the vertebrate invasion of the land
...e in the Pacific tarpon. Beach spawning provides habitat segregation at different points in the life histor...d have facilitated the invasion of the terrestrial habitat by fishes during evolution. These articles are from two merged symposia ("How to Live Successfully ......5% decline in Sabah orangutan numbers primarily to habitat loss from agricultural development. While the authors acknowledge the density estimates could be more precise, their survey reveals crucial information on orangutan numbers and distribution, and their results suggest that orangutans may adapt better ......ese words in the late 1700s, the deforestation and habitat destruction that would decimate wild tiger populat...iberia in the east. Today, the ongoing stresses of habitat loss, hunting, and an illegal trade in tiger parts have spared fewer than 7,000 tigers. Of eight tra...