HOME >> BIOLOGY >> NEWS
California gnatcatcher: Umbrella species failure?

Protecting "umbrella" species is a popular conservation short-cut. The idea is that protecting a species with a large range will automatically preserve biodiversity. But this may not be true, particularly for invertebrates: new research shows that protecting the California gnatcatcher fails to preserve three insects in southern California's coastal sage scrub.

"The strategy of using a single vertebrate species as an umbrella for the whole fauna of California coastal sage scrub is flawed," says Daniel Rubinoff of the University of California at Berkeley in the October issue of Conservation Biology. "Insects are almost never considered in conservation planning, the idea being that...because they are 'bugs', they are somehow less vulnerable than vertebrates." Invertebrates account for more than 80% of the animals in terrestrial ecosystems.

Historically, there were only 3 million acres of coastal sage scrub and more than 85% has been lost to agriculture and urban development, making it among the most endangered habitat types in the U.S. This habitat is a global hotspot of species found nowhere else and nearly 100 species are at- risk. In San Diego County, efforts to protect coastal sage scrub have used the California gnatcatcher -- a threatened songbird -- as an umbrella species because it is virtually restricted to nesting in this habitat.

To test how well the California gnatcatcher serves as an umbrella species, Rubinoff surveyed 50 coastal sage scrub patches in San Diego County for three insects that depend on this habitat. These insects (two butterflies and a moth) lay their eggs only on a buckwheat characteristic of this habitat.

Rubinoff found that the California gnatcatcher occurred in nearly all of the patches. However, this was not true for the three insects studied. One of the butterflies (Apodemia mormo) occurred in four-fifths of the p
'"/>

Contact: Daniel Rubinoff
drubinof@nature.berkeley.edu
510-642-7410
Society for Conservation Biology
20-Sep-2001


Page: 1 2

Related biology news :

1. Joslin Diabetes Center adds first affiliate in California at Irvine Medical Center
2. Dramatic decline of California native frog linked to introduced trout in mountain lakes
3. Researchers find no safe place to sit in California tick-infested forest
4. Scientists question reports of massive ant supercolonies in California and Europe
5. Southern Californians commonly misinformed about beach water quality, study finds
6. California pistachio industry threatened by potentially devastating disease
7. Physician experts available to speak on California fires and smoke inhalation
8. University of California, Riverside study dates our ancestors
9. Californias native grasses can be restored
10. University of California, Riverside to host spider experts
11. Proliferation of Argentine ants in California linked to decline in coastal horned lizards

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


(Date:6/6/2019)... ... 2019 , ... Ziegler, a specialty investment bank, is pleased ... (PBM) on its recent acquisition by PathGroup. , Headquartered in Lewisville (Dallas), ... than one dozen hospitals and surgery centers in the Dallas-Fort Worth and broader ...
(Date:6/4/2019)... Calif. (PRWEB) , ... June 04, 2019 , ... Harper ... was limping. X-rays revealed severe elbow dysplasia, which caused painful osteoarthritis in the ... her elbows. Her parents were heartbroken. , The surgical specialist, Dr. Christopher Eich ...
(Date:6/3/2019)... ... ... Stay on top of current hot topics through free webinars presented by ... is free, so be sure to register today to save your place! Participate in ... see our upcoming webinars: , CLINICAL TRIALS , June 10 – A Novel Approach ...
Breaking Biology News(10 mins):
(Date:6/6/2019)... CYPRESS, Calif. (PRWEB) , ... June 05, 2019 , ... ... pharmaceutical, biotechnology and medical device industries, announced today that they will be receiving 3 ... in San Diego, CA. WCCT received 2 awards in the categories of overall Quality ...
(Date:5/31/2019)... ... May 30, 2019 , ... A ... an efficient delivery system for the sustained release of human placental stem cell ... system was able to deliver CM into the injured kidney, where it helped ...
(Date:5/14/2019)... ... May 13, 2019 , ... ... testing instruments for the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries’ is ... redesigned website aims to improve LDA’s ability to communicate directly with the marketplace; ...
(Date:5/4/2019)... ... May 03, 2019 , ... Diopsys Inc, the world ... Negative Response vision test, a new full field electroretinography (ffERG) protocol designed ... 6.3 million Americans will have glaucoma, with black Americans having the highest prevalence ...
Breaking Biology Technology:
Cached News: