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Tools and technology

Jun

24

2009
 
 

A Malignant Growth



Tumors are an emerging concern for wildlife conservation

istock_000004443081xsmallCancer is typically thought to be a very human problem. If researchers worry about tumors in wildlife at all, it is probably to model the human version.

But cancer is becoming a growing conservation concern, even threatening some species with extinction, according to a paper in Nature Cancer Reviews. The case of the Tasmanian devil is a prime example. A contagious facial tumor disease has already decimated the species. What’s unique is the ongoing all out effort to save the remaining tumor-free individuals.  Not every species is so lucky.

Virus-induced cancers pose another threat. High rates of genital tumors in California sea lions and some dolphin species are limiting their ability to reproduce, for example. In addition, humans are increasing some cancer risk, especially for aquatic species living in dirty waterways. For beluga whales in the polluted St. Lawrence River system, unusually high numbers of intestinal cancer are the second leading cause of death.

These examples illustrate how cancer can actually limit a species’ population, the authors write. The list is short because often wildlife health monitoring is poor. Ramping up efforts could better safeguard both wildlife and human health, they note. – Jessica Leber

Source: McAloose, D. and A.L. Newton. 2009. Wildlife cancer: a conservation perspective. Nature Reviews Cancer DOI: 10.1038/nrc2665

Image © Eraxion, iStockphoto.com

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Jun

9

2009
 
 

Scat From Space



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May

29

2009
 
 

Satellite Phytography



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May

29

2009
 
 

Don’t Despair, Repair



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May

14

2009
 
 

Runway Roadkill



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May

8

2009
 
 

Timing Is Everything



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Apr

21

2009
 
 

Fish No Evil



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Apr

16

2009
 
 

President obamae



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Apr

10

2009
 
 

Sound and Fury



Read more on Community-based conservation, Endangered species, Marine, Monitoring, Socio-political issues, Tools and technology | 1 Comment

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Mar

28

2009
 
 

Group Think



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