Navigation Links
Researchers show environmental changes may affect vital cooperate bird behaviors
Date:1/11/2011

distribution of complex avian social behavior on a global scale, while simultaneously examining how the environment influences these geographic patterns."

By combining behavioral and climate data in a statistical modeling framework the researchers found dramatic spatial and environmental variation in social behavior globally. "We discovered 'hot-spots' in places like Australia and Africa where family-living species are overrepresented, as well as 'cold-spots' in places like South and Central America where there are fewer family-living species than we would have expected," said Jetz. This geographic unevenness coincided with the occurrence of specific bird lineages, but also carried a strong signal of environmental and biotic factors. In particular, among year variation, or climatic uncertainty, in rainfall emerged as a key predictor of family-living in birds.

The study demonstrates that even on a global scale, the incidence of complex avian social behavior may be greatly influenced by the consequences of living in unpredictable environments. Variable environments encompass a broad range of climate conditions that pose a greater range of challenges to survival and reproduction than predictable ones. Family-living among birds may therefore be a conservative "'best of a bad job'' strategy to maximize fitness when breeding conditions vary unpredictably from year to year.

"Families act as insurance against environmental uncertainty," said Rubenstein. "Just as predicting a drop in the stock market is difficult, so too is determining when food is going to be scarce." When times are bad and food is difficult to find, joining up to raise young may pay off for both parents and helpers.

This thinking may have implications for an entirely different group of animals: humans. "Think twice," cautions Rubenstein, "before you kick your grown kids out of the house, as you never know when you might need them."


'/>"/>

Contact: Clare Oh
clare.oh@columbia.edu
Columbia University
Source:Eurekalert

Page: 1 2

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/26/2015)... 2015 The Granite Club, ... athletic club, today announced it has implemented a state-of-the-art ... movement for members and staff, while restricting access to ... we selected FST,s IMID Access system because it has ... members and staff, in addition to unparalleled security," said ...
(Date:3/24/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/hdgz7h/global_iris ... Iris Recognition Market 2015-2019" report to their offering. ... market to grow at a CAGR of 23.5 percent ... the present scenario and the growth prospects of the ... calculate the market size, the report considers the revenue ...
(Date:3/24/2015)... Mar. 24, 2015 Research and Markets ( http://www.researchandmarkets.com/research/kvdtcw/face_and_voice ... Biometrics - Global Strategic Business Report" report to their offering. ... Voice Biometrics in US$ Thousands by the following Segments: Face Biometrics, ... US, Canada , Japan , ... Middle East & Africa , ...
Breaking Biology News(10 mins):Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6
... Aug. 8, 2013 The radio frequency identification (RFID) market ... due to high costs and the criticality of the technology. ... safety and drug traceability in the U.S. and ... New analysis from Frost & Sullivan,s ( http://www.autoid.frost.com ...
... who were growth restricted in the womb were born at a ... as adults, said researchers from Baylor College of Medicine ... BCM and Texas Children,s Hospital in a report that ... . "Given that human studies also show female-specific obesity ...
... Research findings published today in PLOS ONE ... review panel evaluates grant applications does not necessarily impact ... research found that the average amount of discussion panelists ... investigation examined more than 1,600 grant application reviews coordinated ...
Cached Biology News:Frost & Sullivan: Government Mandates Create Momentum in Uptake of Radio Frequency Identification in Global Cold Chain 2Frost & Sullivan: Government Mandates Create Momentum in Uptake of Radio Frequency Identification in Global Cold Chain 3Frost & Sullivan: Government Mandates Create Momentum in Uptake of Radio Frequency Identification in Global Cold Chain 4Kids born small should get moving 2Study explores effects of review setting on scientific peer review 2
(Date:3/26/2015)... N.J., March 26, 2015  Roka Bioscience, Inc. ... focused on providing advanced testing solutions for the ... results for the three months and full year ... 2014 Financial Results:Revenue for the quarter ended December ... for the fourth quarter of 2013 and $1.5 ...
(Date:3/26/2015)... (PRWEB) March 26, 2015 PRC Clinical, ... announced today several management and executive appointments effective immediately. ... Financial Officer (CFO) and member of the Board of ... Business Operations, and Sue Dowden will assume the position ... and current Chief Operations Officer (COO), has been appointed ...
(Date:3/26/2015)... SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... including the appointment of auditors, its annual and special ... "Meeting") was adjourned, as previously disclosed on March 25, ... Toronto time). The date of the ... The Meeting will reconvene at the offices of the ...
(Date:3/26/2015)... 2015 The Market Element LLC, a ... alliance with Designing Gig LLC to provide website design, ... , “Forging this alliance with Designing Gig represents a ... extend a comprehensive, end-to-end, digital solution for our clients, ... said Chuck Miller, president of The Market Element. “For ...
Breaking Biology Technology:Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 2Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 4Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 5Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 6Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 7PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 2PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 3SQI Diagnostics Inc. Announces Adjournment of Meeting 2The Market Element LLC and Designing Gig LLC Form Strategic Alliance 2
... among the proposals introduced as part of the Invest Wisconsin ... State Sen. Ted Kanavas , R-Brookfield. , ,The legislative ... and other proposals to stimulate investment, seeks to change the ... Under the measure, all income tax payers would see a ...
... Executive Club of Chicago's annual forecast for this year, I ... look at the foreclosures on houses. You would think that by ... start to be more financially secure, but it does not look ... the tech sector is still spotty with stocks like Motorola ...
... Madison, Wis. - In a move that could bring ... of Madison will open an office in Ann Arbor, Mich. ... Madison venture capital firm, which recently moved into a larger ... Park , was one of three venture firms selected to ...
Cached Biology Technology:Kanavas outlines new Invest Wisconsin agenda 2Kanavas outlines new Invest Wisconsin agenda 3Real pulse of the economy? Check real estate foreclosures 2Real pulse of the economy? Check real estate foreclosures 3Real pulse of the economy? Check real estate foreclosures 4Real pulse of the economy? Check real estate foreclosures 5Venture Investors to open Michigan office 2
Sheep polyclonal to Malate Dehydrogenase ( Abpromise for all tested applications). Antigen: Full length protein - Pig heart malate dehydrogenase. Entrez Gene ID: 4190 Swiss Protein ID: P...
Dual adapter for phosphotyrosine and 3-phosphotyrosine and 3-phosphoinositide...
This monoclonal antibody recognizes the light chain of human Factor XII and at 100 nM inhibits 50% of Factor XII activity. It may be used in ELISA to detect human Factor XII and in coagulation assay...
Rab 3 Immunogen: Synthetic peptide corresponding to the N-terminal region of Rab 3 protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: