HOME >> BIOLOGY >> NEWS
City birds prefer rich neighbors

The Central Arizona-Phoenix Long Term Ecological Research Project has found that the bird population has a slightly higher species richness (number of species) and greater abundance (number of birds in general) in urban Phoenix than in the surrounding Sonoran Desert, but the real surprise comes in a recent study that shows that the city birds can be truly discriminating about where they choose to live. The study's results indicate that bird populations are influenced by economic factors -- more species live in wealthy neighborhoods than in middle and lower income areas.

In a study of 15 small community parks located in Phoenix neighborhoods with distinct socioeconomic classifications ranging from lower to upper income, Arizona State University ecologists Ann P. Kinzig and Paige Warren measured the abundance and diversity of both birds and trees. The researchers chose parks rather than residential yards because these city-controlled spaces offered comparable environments for the study sites, with a similar landscape (grass, athletic fields, facilities and scattered trees) but significant differences in the surrounding neighborhoods.

"What we are seeing is a pretty strong trend in the data," said Kinzig. "We can't explain bird diversity in the parks by the size of the parks, or the types or sizes of trees in the parks, which is what we might expect. Instead, the characteristics of the neighborhood, including the income of the residents, seem to play a significant role in influencing the number of species that live in the park ."

Trees and other vegetation are considered to be a major factor affecting bird populations. But the study's findings on diversity and abundance of park trees, which are the primary vegetation in the survey sites, do not correspond with the bird data. While bird populations were found to be most diverse in upper income neighborhood parks and progressively less diverse in parks in middle and lower income neighborhoods,
'"/>

Contact: James Hathaway
Hathaway@asu.edu
480-965-4823
Arizona State University
8-Aug-2002


Page: 1 2 3

Related biology news :

1. Parasitic cowbirds thrive with a less ruthless strategy than cuckoos
2. A changing landscape may have dire implications for birds
3. Songbirds escaped from Australasia, conquered rest of world
4. Sleepless over Seattle: Migrating songbirds forgo sleep but keep their wits
5. UW study: Migrating birds offer insight into sleep
6. Chemical reaction in birds provides sense of direction during migratory flights
7. Worlds oldest modern hummingbirds described in Science
8. Global warming may cause songbirds to avoid certain foods
9. Wright State biologist studies birds to learn how our stomachs convey thoughts of hunger
10. Snowbirds versus real birds
11. Researchers find new form of hormone that helps songbirds reproduce

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


(Date:5/16/2016)... 16, 2016   EyeLock LLC , a market ... opening of an IoT Center of Excellence in ... the development of embedded iris biometric applications. ... convenience and security with unmatched biometric accuracy, making it ... from DNA. EyeLock,s platform uses video technology to deliver ...
(Date:5/3/2016)... VILNIUS, Lithuania , May 3, 2016 /PRNewswire/ ... today released the MegaMatcher Automated Biometric Identification ... deployment of large-scale multi-biometric projects. MegaMatcher ABIS can ... and accuracy using any combination of fingerprint, face ... of MegaMatcher SDK and MegaMatcher ...
(Date:4/26/2016)... and LONDON , April ... part of EdgeVerve Systems, a product subsidiary of ... today announced a partnership to integrate the Onegini ...      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ) ... their customers enhanced security to access and transact ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... TORONTO , June 23, 2016 /PRNewswire/ - ... Ontario biotechnology company, Propellon ... the development and commercialization of a portfolio of ... cancers. Epigenetic targets such as WDR5 represent an ... contribute significantly in precision medicine for cancer patients. ...
(Date:6/23/2016)...  The Biodesign Challenge (BDC), a university competition that ... living systems and biotechnology, announced its winning teams at ... New York City . The teams, ... at MoMA,s Celeste Bartos Theater during the daylong summit. ... curator of architecture and design, and Suzanne Lee ...
(Date:6/23/2016)... 23, 2016 Apellis Pharmaceuticals, Inc. today ... trials of its complement C3 inhibitor, APL-2. The ... ascending dose studies designed to assess the safety, ... injection in healthy adult volunteers. Forty ... a single dose (ranging from 45 to 1,440mg) ...
(Date:6/23/2016)... Pleasant Prairie, WI (PRWEB) , ... June 23, ... ... sciences consultancy focused on quality, regulatory and technical consulting, provides a free ... webinar is presented on July 13, 2016 at 12pm CT at no charge. ...
Breaking Biology Technology:
Cached News: