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:
TAG: City birds prefer rich neighbors

(Date:1/22/2015)... DETROIT , Jan. 13, 2015 Technology Showcase, Hall ... iris-based identity authentication solutions, today announced it will showcase its ... and developed by the Department of Energy,s Oak Ridge ... International Auto Show . EyeLock,s iris identity authentication technology is ...
(Date:1/22/2015)... and POINT ROBERTS, Washington , January 20, ... leading sectors including technology and tech stocks, releases video from ... master pickpocket and security consultant Apollo Robbins . ... talks about the Wocket™ biometric smart wallet, a product of ...
(Date:1/22/2015)...   EyeLock, Inc. , a market leader of iris-based identity ... to the new role of Senior Vice President of ... of mobile platforms and wearable solutions for EyeLock,s technologies. Gerber ... the semiconductor industry to his role at EyeLock, with expertise ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2
(Date:1/22/2015)... , Jan. 22, 2015   Cypher Genomics, Inc., ... Inc. (NASDAQ: SQNM ), the leading ... for next generation noninvasive prenatal tests (NIPT). Through ... technology, called Mantis™, to advance analysis of clinically-relevant ...
(Date:12/24/2014)... SPRING, Md. , Dec. 24, 2014  United Therapeutics ... Medtronic, Inc. (NYSE: MDT ) has submitted ... Drug Administration (FDA) for the use of Medtronic,s SynchroMed ... newly developed catheter) for use with United Therapeutics, Remodulin ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 GMO corn cases ... Syngenta, are in the process of being consolidated in a ... In Re: Syngenta AG MIR 162 Corn Litigation, MDL No. ... Kansas. , Management of the Syngenta GMO corn multidistrict litigation ...
(Date:12/24/2014)... Texas (PRWEB) December 23, 2014 ... such as its definition, classification, application and industry ... process, and product cost structure. Production is separated ... covers upstream raw materials, equipment, downstream client survey, ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2
Cached News: