HOME >> BIOLOGY >> NEWS
Species vs. Species

Because loggerhead shrikes on San Clemente Island are critically endangered, the foxes that prey on their nestlings should be controlled. Right? Wrong. The problem is that the foxes are also at-risk. A new analysis shows that instead of pitting the shrike against the fox, both species could have been protected with an ecosystem-wide conservation plan.

"This endangered species conflict might have been avoided through a more balanced ecosystem approach," say Gary Roemer of New Mexico State University in Las Cruces and Robert Wayne of the University of California at Los Angeles in the October issue of Conservation Biology. Roemer is also the World Conservation Union (IUCN) island fox coordinator.

The San Clemente loggerhead shrike is one of the most endangered birds in the world, with about 50 in the wild in 2003. Until this year, the shrike's federal recovery program included controlling all its predators even the San Clemente island fox, which is listed as threatened in California. The fox has declined by about 60% in the last decade and was down to about 400 in the year 2000.

In 1999, foxes were killed to protect the shrike. After that, foxes in shrike nesting areas were inadvertently caught in traps set for feral cats or held in captivity during the breeding season. Either way, these foxes were not breeding and so were not bolstering the population. In 2000, more than a tenth of the foxes were held in captivity during the breeding season. In 2003, fox control efforts finally stopped.

Besides having hurt the foxes, the shrike recovery program does not do enough to help the birds. While the feral goats and pigs that degraded the island's habitat have been eradicated, there has been little habitat restoration. Consequently, there are not enough shrubs, which provide foraging perches for the shrikes, and too many non-native grasses, which are taller and denser than native grasses and so presumably make it harder for the shrikes to hunt
'"/>

Contact: Gary Roemer
groemer@nmsu.edu
505-646-3394
Society for Conservation Biology
23-Sep-2003


Page: 1 2

Related biology news :

1. Snakehead in your inbox? Welcome to the nonindigenous Aquatic Species Alert System
2. Endangered Species Recovery Plans Face Comprehensive Scientific Review
3. New Species Of Human Ancestor
4. USGS Scientists To Speak On Rare Plants And Invasive Species At Santa Barbara Symposium
5. CU Research Team Unravels Mystery Of Larceny Among Tropical Ant Species
6. NSF-Funded Researcher Plucks Four Unknown Fish Species From Antarctic Waters
7. Alien Species Cost U.S. $123 Billion A Year
8. Exotic Species, Migratory Birds, Sea Level Rise, Wetlands, And Contaminants...USGS Scientists Discuss Innovative Chesapeake Bay Restoration Studies
9. Saving Endangered Species Becomes Part Of Ag Centers Animal Reproduction Projects
10. Study Of Origin Of Species Enters The Molecular Age
11. Mouse Study Trumpets New Way To Preserve Species

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Species Species

(Date:2/5/2015)... -- New Market Research Reports Title Global ... 2020 has Been Added to GrandViewReseach.com Report Database ... reach USD 5.10 billion by 2020, according to a ... help identify the site of tissue damage in case ... in medical imaging applications. They have been extensively used ...
(Date:2/5/2015)... VIEW, Calif. , Feb. 3, 2015 /PRNewswire/ ... printer technology, demand from industries such as consumer ... global market for surface mount technology (SMT) screen ... equipment to automatic control will push the adoption ... dispensers will remain steady as glue dispensers are ...
(Date:1/22/2015)... MELBOURNE, Fla. , Jan. 13, 2015  Today, ... wearable technology, launched its crowdfunding campaign on Fundable, ... accelerate the build of production capacity to meet ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
Breaking Biology News(10 mins):IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 2IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 3End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 2End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 3FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2
(Date:2/26/2015)... , Feb. 26, 2015 Protiviti ( www.protiviti.com ... version of the Governance Portal , designed to ... and compliance (GRC) tasks across multiple business units and ... to help customers better align their controls with the ... Commission ) requirements. In response to client feedback, Protiviti ...
(Date:2/26/2015)... 2015 On behalf of biotech client ... Wilentz, Goldman & Spitzer, P.A. (Wilentz) secured ... against Genewiz Inc. in excess of $10 million. The ... trade secrets, and that it improperly hired one or ... order denying motions for judgment notwithstanding the verdict, a ...
(Date:2/26/2015)... Feb. 26, 2015 BioEnterprise today announced that ... attracted more than $2 billion in growth funding during ... national investors, strategic sources, state – including the Ohio ... the $2 billion has been raised in the past ... the heels of the BioEnterprise Midwest Healthcare Growth ...
(Date:2/26/2015)... 26, 2015 Innovation is more ... from unexpected parts of the world and transforming ... agriculture to manufacturing to health care, disruption is ... realities and socio-political trends shake the foundations of ... ingredient for CEOs to survive the next wave ...
Breaking Biology Technology:Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 2Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 3Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 2More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 3More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 4One Million Acts of Innovation Canada Creates Partnership with The Economist Events’ Innovation Forum 2
Cached News: