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:5/20/2015)... 2015 Research ... the addition of the  "5-year Opportunity ... Market"  report to their offering.  ,     ... analyses trends in the iris recognition ... sectors, globally. Despite hardware pricing and ...
(Date:5/19/2015)...  Technology is rapidly advancing, outpacing enterprises, ability to ... Passwords and their management are soon to be rendered ... such as those developed by the FIDO Alliance™. With ... for BYOD, COPE, IoT, and mobile payments, the interconnected ... In response to the call for seamless, ...
(Date:5/14/2015)... May 14, 2015 Research and Markets ... "Fingerprint Sensors Market in Smart Mobile Devices " ... believes that 2014 was a watershed year for fingerprint ... of ,Apple Pay,. Apple gave fingerprint sensors a raison ... service. Fingerprint sensors are a must-have feature in flagship ...
Breaking Biology News(10 mins):Global Iris Recognition Market Report 2015 - 5-Year Opportunity Analysis 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 3Global Smart Mobile Devices Fingerprint Sensors Market 2015-2019: Key Vendors are Authentec, Validity Sensors, Fingerprint Cards, Next Biometrics Group. IDEX, and Qualcomm 2
(Date:5/22/2015)...  Actavis plc (NYSE: ACT ) today confirmed ... for the Second Circuit has issued a ruling upholding ... to continue distribution of NAMENDA ® (memantine HCl) ... "While we are disappointed by the ... continue our strong efforts to convey the significant benefits ...
(Date:5/22/2015)... 22, 2015 Knowledgent , the ... that explores the potential of big data analytics in ... was developed to help life sciences and healthcare organizations ... to gain critical business insights. , The life sciences ... data driven by patient profiling, compliance and regulatory requirements, ...
(Date:5/21/2015)... 2015 Seventh Wave Laboratories, a consulting-based ... of pharmaceutical products and medical devices, announced the purchase ... a 50,000 sq. ft. building more than three times ... growth. Facility renovations will begin immediately and the gradual ... occur in September. , “We are excited about ...
(Date:5/21/2015)... , May 21, 2015  Prima Biomed Ltd. (NASDAQ: ... is striving to become a leader in the development ... announced that the final CVac data from the Phase ... clear trend for a clinically meaningful improvement in Overall ... remission patients. In the group of second ...
Breaking Biology Technology:Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 2Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 3Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 4Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 5Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 6Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 7Actavis Confirms Appeals Court Ruling Requiring Continued Distribution of NAMENDA IR 8New White Paper Explores the Potential of Big Data Analytics in Life Sciences and Healthcare 2Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 2Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 3Correction Continues after Big Move - BrokerBank Securities, Inc. 2
Cached News: