Posted by: Michael Ritter PhD | July 13, 2006

News Roundup

Yellowstone Ecosystem May Lose Key Migrant — The Pronghorn Antelope

“A mammal that embarks on the longest remaining overland migration in the continental United States could vanish from the ecosystem that includes Yellowstone and Grand Teton National Parks, according to a study by the Wildlife Conservation Society (WCS) and National Park Service. No, it’s not the bison, the grizzly bear, or even the wolf, but the pronghorn antelope, which travels more than 400 miles between fawning grounds and wintering areas. Second only to caribou in the Arctic for long distance migration in the Western Hemisphere, this isolated population and its ancient migration route could disappear because of continued development and human disturbance outside the parks according to the study, which appears in the latest issue of the journal Biology Letters.”

Read article at ScienceDaily
TPE Link – Habitat Change and Human Activity

Climate Change Not The Only Factor Controlling Distribution Of Plant Species

“Biogeographers have long recognized that the spatial distribution of plant species, at a coarse resolution, mainly reflects each species’ climatic requirements. However, few studies have carefully matched maps of a species distribution with maps of climatic variables to see where climate may fail to predict a species distribution, thus suggesting other ecological factors, such as limited seed dispersal or competition with other species.”

Read article at ScienceDaily
TPE Link – Climate Change: Global Warming; Habitat Occupation; Fundamentals of Biogeography

African Black Rhinos Breeding in Texas

“Find out how Texas conservationists are working to combat the damage done to black rhinos by decades of poaching in Africa.”

See video at National Geographic.
TPE Link – Species Endangerment in Tropical Forests; Tropical Savanna

West African Black Rhino Extinct, Group Says

“The West African black rhinoceros has likely gone extinct, the World Conservation Union (IUCN) announced last week. … Extensive surveys in northern Cameroon (map of Cameroon), the animals’ last known refuge, found no trace of the rhino subspecies.”

Read article at National Geographic
TPE Link – Species Endangerment in Tropical Forests; Tropical Savanna

Rogue Giants at Sea

“Enormous waves that sweep the ocean are traditionally called rogue waves, implying that they have a kind of freakish rarity. Over the decades, skeptical oceanographers have doubted their existence and tended to lump them together with sightings of mermaids and sea monsters.”

Read article at New York Times
TPE Link – Waves


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