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:7/31/2015)... , Kina, 31. juli 2015 Den 10. ... afholdt af BGI fra den 22. - 25. oktober i ... Konferencen fejrer sin 10-års fødselsdag i år. Siden starten ... indflydelsesrige årlige møder på ,omik,-feltet, og er en af ... ICG-10 fokuserer på nylige gennembrud og fremskridt ...
(Date:7/31/2015)... , 31 de julio de 2015 ... (ICG-10,  www.icg-10.org ) del 22 al 25 de octubre ... La conferencia celebra su décimo aniversario este ... convertido en una de las reuniones anuales más influyentes ... es una de las conferencias científicas más dinámicas, entusiastas ...
(Date:7/31/2015)... China , 31 de julho de 2015 /PRNewswire/ ... (ICG-10, www.icg-10.org ) será realizada pela BGI de 22-25 ... . A conferência está celebrando seu ... em 2006, a ICG se tornou uma das reuniões ... um dos encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
(Date:7/31/2015)... July 31, 2015 In today,s fast ... help them drive positive health outcomes, improve profitability ... of patient care in their communities. At ThoughtSpot ... and conference, AmerisourceBergen announced a new set of ... Administration Organization and help independent pharmacies endure the ...
(Date:7/31/2015)... ... July 31, 2015 , ... ... analysis and premium industry insights on the global resorcinol industry. The report highlights ... study of vivid market scenarios and analysis of primary and secondary inputs from ...
(Date:7/31/2015)... 31, 2015 China Cord Blood Corporation (NYSE: ... leading provider of cord blood collection, laboratory testing, ... today announced that the Company has filed its Annual ... Exchange Commission. The filed Form 20-F includes audited financial ... The Form 20-F can be accessed by visiting the ...
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is ... of partially hydrolyzed gluten in foods, has been accepted by AOAC International as ... Hydrolyzed Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a ...
Breaking Biology Technology:AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 2AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 4China Cord Blood Corporation Files Its Annual Report on Form 20-F 2RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2
Cached News: