Navigation Links
Savanna habitat drives birds, and perhaps others, to cooperative breeding
Date:8/16/2007

>

"Since rain equals food to the birds because it drives patterns of insect availability," said Rubenstein, "we think that by living in family groups with helpers that aid in feeding babies, these birds can cope better in these unpredictable savannas."

Rubenstein noted that this social strategy also helps in good years with lots of rain. Helpers bring enough extra food back to the nest to allow the cooperatively breeding species to breed longer and raise more broods of young than the non-cooperative ones.

"In some cases, the more social species tend to breed longer in benign years and thus produce more offspring," he said. "Often, parents don't have to spend so much time and energy going out and getting food because helpers compensate and do a lot of the parenting."

The origin of cooperative breeding in a savanna habitat may extend beyond starlings, Rubenstein said, noting that the first humans also lived in the savannas of East Africa.

"We think this relationship between sociality and temporal variability in rainfall and, hence, food availability, might help explain the distribution of cooperative breeding in other groups of birds, and even some mammals, living in semi-arid environments around the world," he said.

He added that with global warming, weather patterns are expected to become more variable worldwide and could possibly drive social behavior more toward cooperative breeding among temperate species that don't normally live in family groups.


'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Habitat use by North Pacific right whales, Eubalaena japonica, in the Bering Sea and Gulf of Alaska
2. Could better mangrove habitats have spared lives in the 2004 tsunami?
3. Bird song changes sound alarm over habitat fragmentation
4. Habitat microstructure drives salamander metamorphosis
5. New tiger report release: Tiger habitat down from just a decade ago
6. Invasive species alter habitat to their benefit
7. Palaus coral reefs show differential habitat recovery following the 1998 bleaching event
8. Unchecked DNA replication drives earliest steps toward cancer
9. Climate change drives widespread amphibian extinctions
10. Mindless autopilot drives people to underestimate food decisions
11. Buildup of damaged DNA in cells drives aging
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/7/2014)... -- Leading Biometric companies aim to provide consumers ... transactions.  Companies in focus today are: NXT-ID, Inc. (NASDAQ: ... ), Google Inc. (NASDAQ: GOOG ), Microsoft Corporation ... EBAY ) and MasterCard Inc. (NYSE: MA) NXT-ID, ... authentication company focused on the growing mobile commerce is pleased ...
(Date:11/6/2014)... cancer deaths occur because of metastasis, yet progress ... been slow. , "It,s been particularly challenging to ... Gujral, research fellow in systems biology at Harvard ... detected until after they,ve already metastasized." , Gujral ... that should help researchers better understand how metastasis ...
(Date:11/6/2014)... Medicine, Inc, a Baltimore-based bioinformatics company focused on ... a research collaboration with the international leader in ... CSBR). , "There are many companies utilizing advances ... TumorGraft technology is unique in a way that ... vast amounts of valuable data. Our bioinformatic analysis ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Migration negation 2Migration negation 3Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2
... nurses, and firefighters essential during a severe pandemic influenza ... and utility workers. That,s the conclusion of a Johns ... of Biosecurity and Bioterrorism . The report, led ... for the Johns Hopkins Berman Institute of Bioethics, provides ...
... neuroblastoma and melanoma developed by scientists and ... collaboration with investigators from the University of Iowa is ... to new research published in the October edition of ... vaccine uses the tumor,s own protein to induce an ...
... fossils revealed a herd of dinosaurs that perished in ... are characterized by a bony frill on the back ... had large bony structures above their nose and eyes ... structures probably supported horns of keratin. According to ...
Cached Biology News:Rethinking who should be considered 'essential' during a pandemic flu outbreak 2Children's National researchers develop novel anti-tumor vaccine 2A new dinosaur species, Pachyrhinosaur lakustai, unveiled from Pipestone Creek, Alberta, Canada 2
(Date:11/21/2014)... 2014   TRU-D SmartUVC LLC and its UK ... automated disinfection robot, TRU-D SmartUVC, at FIS 2014 in ... to 26 at Stand 23. The conference, hosted ... Kingdom,s largest infection-related event of its kind and ... of the leading events of its type throughout the world. ...
(Date:11/21/2014)... November 20, 2014 The ... Chassis, Oligos, Enzymes, Cloning kits), Technology (Bioinformatics, ... (Biofuels, Pharmaceuticals, Biomaterials, Bioremediation) - Global Forecast ... market drivers, threats, opportunities, and challenges. , ... figures spread through 185 pages and in-depth ...
(Date:11/21/2014)... 2014 Deep Research Report on ... research report on the transformer market. The report ... and industry chain structure as well as industry ... including China’s domestic market as well as global ... analysis. The report also covers information on policy, ...
(Date:11/18/2014)... , Nov. 18, 2014 Cord Blood ... sponsor of the 10th Annual World Stem Cell Summit, the ... stakeholders. The 2014 World Stem Cell Summit will be held ... Antonio, Texas . The World ... development of lifesaving cures and therapies, convening the most prominent ...
Breaking Biology Technology:TRU-D SmartUVC to Showcase Superbug-Killing Robot at FIS 2014 2TRU-D SmartUVC to Showcase Superbug-Killing Robot at FIS 2014 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 2Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 4International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3Cord Blood Registry Sponsors 2014 World Stem Cell Summit 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 3
... genetics (Nasdaq: DCGN ) announced today that it ... institution, pursuant to which NBI has purchased deCODE,s auction rate ... the agreement, deCODE has the call option to require NBI ... time prior to December 31, 2009. NBI has the put ...
... MISSISSAUGA, ON, Jan. 20 /PRNewswire-FirstCall/ - Vasogen Inc. (NASDAQ: ... a Nasdaq Staff Deficiency Letter on January 13, 2009, ... director requirement as set forth in Nasdaq Marketplace Rule ... the resignation of a Director, which was announced publicly ...
... Inc. (Nasdaq: NLTX ), today announced that ... natriuretic peptide franchise, including CD-NP which is in Phase ... is a pre-clinical compound. Nile will suspend the further ... compound to Dr. Cesare Casagrande. "We are disappointed that ...
Cached Biology Technology:deCODE Sells Auction Rate Securities 2deCODE Sells Auction Rate Securities 3Vasogen Complies with NASDAQ Marketplace Rule 4350(c)(1) 2Nile Therapeutics Announces Focus on CD-NP for Acute Heart Failure and Termination of 2NTX-99 Program 2Nile Therapeutics Announces Focus on CD-NP for Acute Heart Failure and Termination of 2NTX-99 Program 3Nile Therapeutics Announces Focus on CD-NP for Acute Heart Failure and Termination of 2NTX-99 Program 4
IHC Polymer Detection Kit (Rabbit DAB)150 slides...
... Desselberger (1995) • This book is ... classical and molecular techniques currently used ... and analysis of virus-specific antibodies and ... presented covering immunoassays, blotting and hybridization ...
Performance, mycoplasma, virus, and endotoxin tested. Collected from calves 14 days old or less...
Bovine Serum...
Biology Products: