WHY ARE SPECIES IN DANGER?
- Infectious diseases and endangered species management Miller, Dan; Dobson, Andrew // Endangered Species Update;Jul1989, Vol. 6 Issue 9, p1
No abstract available.
- Selected Endangered Species Worldwide Populations, 1970-1999. // Scholastic Math (Teacher's Edition);4/10/2000-4/24/2000, Vol. 20 Issue 12/13, pT4
Presents a graphical representation on the population of selected endangered species worldwide from 1970-1999.
- Out of the Woods. // Scholastic News -- Edition 3;9/18/2006, Vol. 63 Issue 3, p2
The article provides information on bald eagles, grizzly bears and gray wolves in the United States and presents a chart of the population of these animals in the continental United States.
- Mojave Desert Tortoises. // Earthwatch Institute Journal;Jun/Jul2003, Vol. 22 Issue 2, p45
Cites a study conducted by scientist Harold Avery with colleagues scientists James Spotila and Justin Congdon for assessing the nutritional and reproductive ecology of desert tortoises in Ivanpah Valley, California. Impact of environmental factors on threatened tortoise populations; Need for...
- Estimate of the Ipswich Sparrow population on Sable Island, Nova Scotia, in 1998, using a random-transect survey design. Smith, Stephen J.; Lucas, Zoe; Stobo, Wayne T. // Canadian Journal of Zoology;May2003, Vol. 81 Issue 5, p771
The Ipswich Sparrow (Passerculus sandwichensis princeps) population on Sable Island, Nova Scotia, has been designated as "vulnerable" by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Previous surveys of this population during the nesting season have varied in coverage...
- Howling Success. // Scholastic News -- Edition 4;3/31/2008, Vol. 70 Issue 20, p2
The article announces the removal of northern Rocky Mountain gray wolves from the U.S. endangered species list on March 28, 2008. The Fish & Wildlife Service placed the gray wolf on the endangered species list in 1974. The gray wolf population in the region began to grow about 13 years ago. At...
- TOUGH LOVE. McKean, Andrew // Outdoor Life;Mar2009, Vol. 216 Issue 3, p44
The article discusses the dangers posed by habituated grizzly bears to people in the U.S. Grizzly bears were designated as a threatened species back in 1975. They are federally protected endangered species in northern Montana. A bear with a history of attraction to human foods is relocated in a...
- Whooper Recount. Johnsgard, Pail A. // Natural History;Feb82, Vol. 91 Issue 2, p70
Estimates the total population of wild whooping cranes in the United States. Errors in earlier studies on the population of the endangered bird; Conservation efforts aimed at preventing extinction of the species; Mortality rates; Chronological plotting of the total wild whooping crane population.
- A review of the Green and Golden Bell Frog Litoria aurea breeding program at Taronga Zoo. McFadden, Michael; Duffy, Simon; Harlow, Peter; Hobcroft, Dion; Webb, Candice; Ward-Fear, Georgia // Australian Zoologist;Apr2008, Vol. 34 Issue 3, p291
The Green and Golden Bell Frog Litoria aurea is a threatened species, having declined greatly in abundance throughout its range in recent decades. In 1994,Taronga Zoo, Sydney, established a captive population of bell frogs, after obtaining a small number of frogs from a suburban site planned for...