HOME >> BIOLOGY >> NEWS
Fragmented Forest, Fragmented Food

Each year, as the world's forested areas become more and more fragmented, ornithologists become more and more alarmed. Many forest songbirds occur less often than expected in small forest fragments. Part of the problem, researchers determined a few years ago, is that forest fragments and edges contain larger numbers of brood parasites, such as the brown-headed cowbird. Now, a team of scientists working in Australia has also discovered that forest fragments may not offer enough food for some songbirds.

Working in forested areas in the southeastern corner of Australia, Liana Zanette (University of British Columbia) and her two colleagues, Paul Doyle and Steve Tremont (University of New England in New South Wales) studied the nesting and feeding habits of the Eastern Yellow Robin (Eopsaltria australis) in forest fragments both large and small. As a part of their study they also examined the type and amount of food available to these birds in the different sizes of forest plots, to see if food would make any difference to the birds' ability to successfully reproduce. The results of their study appear in this month's Ecology (volume 81 issue 6) , a journal published by the Ecological Society of America.

Yellow Robins have a reproductive life history similar to many of the forest-interior migrant birds currently of conservation concern in North America. They lay relatively small clutches of eggs and have short nesting cycles. Their nests are often found in tree forks or bushes about three meters off the ground. While female Yellow Robins incubate their eggs, male Yellow Robins forage for food. The male will bring food to his mate and will also bring food to the young nestlings once they have hatched. Occasionally, the female will leave the nest to search for her own food. She usually also helps find food for the nestlings late in the nesting period. Yellow Robins employ a "sit and wait" foraging tactic to capture insects and small lizard
'"/>

Contact: Alison Gillespie
alison@esa.org
202-833-8773 ext.211
Ecological Society of America
5-Jun-2000


Page: 1 2 3

Related biology news :

1. Crater Chain On Two Continents Points To Impact From Fragmented Comet: 214Million Year-Old Event Corresponds With Mass Extinction
2. Wake Forest, Pittsburgh doctors find gene behind two kidney diseases

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Fragmented Forest Fragmented Food

(Date:10/29/2014)... stem cell, those referred to as ,facultative, form part—together ... nothing that differentiates these cells from the others. However, ... the capacity to become stem cells again. This phenomenon ... that hosts cells that stimulate tissue growth, thus allowing ... a transplant. Knowledge of the underlying mechanism that ...
(Date:10/29/2014)... – Ghrelin is a hormone released by the stomach ... commonly viewed as a psychoactive substance that primarily affects ... food. , This knowledge, combined with findings from ... has the potential to stimulate alcohol craving. , Dr. ... and found that, as they had anticipated, alcohol craving ...
(Date:10/28/2014)... German . ... sufficient food when times are lean? By studying wild ... researchers of the Max Planck Institute for Evolutionary Anthropology ... great apes can acquire extra energy needed to maintain ... sleeping nests more en route to breakfast sites containing ...
Breaking Biology News(10 mins):A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2Ghrelin stimulates an appetite for drinking alcohol 2The early chimp gets the fig 2The early chimp gets the fig 3
(Date:10/27/2014)... Cary, North Carolina (PRWEB) October 27, 2014 ... was invited earlier this month to sit down with Bryan ... Spencer from RPG Solutions to discuss talent in the Research ... the topics that were highlighted at the roundtable ... in the Triangle, the significance of work/life balance and the ...
(Date:10/27/2014)... Oct. 27, 2014 Kalorama Information says that ... concern in the United States ... healthcare market researcher said the FDA,s Emergency Use Authorization (EUA) ... tests for the detection of the Ebola virus was ... Kalorama routinely assess the IVD industry and its biennial ...
(Date:10/27/2014)... 2014 The report “Smart Highway ... Management, Communication, Monitoring), and by Display (Variable Message ... segments the global market into various sub-segments with ... identifies the drivers and restraints for this market ... Browse 75 market tables and 37 figures spread ...
(Date:10/26/2014)... The report "Data Center Networking Market [Ethernet ... Optimization Appliances]: Global Advancements, Worldwide Forecasts & Analysis ... market into various segments with an in-depth analysis ... the factors driving this market, various restraints and ... future roadmaps. , Browse 106 market data tables ...
Breaking Biology Technology:Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 2Personify's Ryan Carfley Talks Recruiting with Triangle Business Journal, RPG Solutions 3Kalorama: PCR The Go-to Test in Ebola Fight 2Kalorama: PCR The Go-to Test in Ebola Fight 3Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 2Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 3Smart Highway Market by Technology, and Display Expected to Reach $27.992.0 Million by 2019- New Report by MarketsandMarkets 4Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 2Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 3Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 4
Cached News: