Navigation Links
Fragmented forests result in more snakes, fewer birds
Date:5/4/2010

About half of all bird nests don't survive due to predators, particularly in fragmented forest areas, but why? University of Illinois researchers monitored both the prey and predator to find an answer.

"Rat snakes accounted for a high percentage of cases of nest predation," said U of I researcher Patrick Weatherhead. "Our hypothesis was that because snakes spend so much more time on the edges of the forest, that's where bird nests should be most vulnerable. And in fact, we never found that." He explained that rat snakes, which in eastern North America are the number one predator to nesting birds, go into the forest to feed, then return to the edges to regulate their body temperature, breed, and shed their skin. "Clearly, a lot of the time they are on the edges they're not actively hunting, because nests on the edges were not at greater risk from the snakes than the nests on the interior of the forest."

Weatherhead said this knowledge of habitat preferences of rat snakes is starting to explain why forest fragmentation usually results in increased nest predation for forest birds.

Fragmented forested areas provide more perimeters, which are beneficial to the snakes. "Snakes really like that interface between the open and closed habitat, whether it's an edge where the forest opens onto a wetland or a rock outcrop or a manmade habitat such as a hay field. So, if your priority is to conserve the birds, you'll want to preserve unfragmented forest habitat," Weatherhead said.

Weatherhead said ornithologists have been interested in fragmentation for a long time. "It's not just that you've lost habitat, but the smaller chunks you're left with aren't as good for a variety of wildlife. The smaller fragmented areas attract birds but they don't do very well there. They've been called ecological traps.

Weatherhead says the message is, if you're going to clear land for agriculture or other development, try to avoid breaking
'/>"/>

Contact: Debra Levey Larson
dlarson@illinois.edu
217-244-2880
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. The song doesnt remain the same in fragmented bird populations
2. Emphasis on conifer forests places multiple species at risk
3. Conservation International and Toyota partner to protect Philippines rain forests
4. Peat and forests save permafrost from melting
5. Spatial patterns in tropical forests can help to understand their high biodiversity
6. Researchers discover forests of endangered tropical kelp
7. Upper Midwest forests are losing diversity, complexity, ISU study finds
8. Study shows housing development on the rise near national forests
9. Why do so many species live in tropical forests and coral reefs?
10. Wildfire drives carbon levels in northern forests
11. Univ. of Arizona receives $2.5 million to study Amazon forests and climate change
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fragmented forests result in more snakes, fewer birds
(Date:7/10/2014)... even improve the state of fisheries resources in ... Mediterranean has deteriorated over the past 20 years. ... reported in the Cell Press journal Current ... stringent monitoring of Mediterranean fishing activities, better enforcement ... Mediterranean waters. , Their data show that the ...
(Date:7/10/2014)... The Marshall Institute for Interdisciplinary Research (MIIR) and ... Medicine today announced they will be partnering with ... drugs. , Under the agreement with Shanghai-based HD ... the costs and risks of discovery and development ... own any intellectual property and commercialization rights to ...
(Date:7/10/2014)... company housed at NJIT,s business incubator, received a $1.4 ... surgeons will use to staunch bleeding during brain surgery. ... site, and the natural bio-polymer solutions in the gel ... 30 seconds. , The gel can shorten an ... into less time for the patient,s skull to be ...
Breaking Biology News(10 mins):Mediterranean fish stocks show steady decline 2Marshall University to partner with international company in drug development venture 2A start-up at NJIT develops bleeding-control gel for brain surgery 2
... , This release is also available in Chinese ... it the anti-sunscreen. That,s more or less the description of ... light-catching substances that could be added to photovoltaic materials in ... electricity. Research reported in the journal ...
... 2010) Autism Speaks, Chief Science Officer Geraldine ... environmental risk factors for autism spectrum disorders as ... Works, Subcommittee on Children,s Health convened a special ... autism spectrum disorders (ASD) and related neurodevelopmental disorders. ...
... for two competitive grants to better understand and manage outbreaks ... fisheries in Puget Sound. The grants cover the first year ... the next three years. NEW FORECAST ... goal of one project is to develop a forecasting ability ...
Cached Biology News:Selenium makes more efficient solar cells 2Autism Speaks on US Senate hearing on potential environmental health factors in autism 2Autism Speaks on US Senate hearing on potential environmental health factors in autism 3New research to improve management of harmful algal blooms in Puget Sound 2
(Date:7/10/2014)... 10, 2014 Product and process ... low abundance and are often “lost in the ... , Join presenters Dr. Rowel Tobias, Senior Scientist, ... Anders, Head of Quality at Nanotherapeutics, Inc., to ... can speed detection and quantitation while achieving the ...
(Date:7/10/2014)... Terascala, the industry leader in HPC ... former vice president of product management for Flexera Software, ... marketing. Terascala’s software when combined with leading compute and ... performance and most reliable solutions for processing big data. ... expansion and broaden its product portfolio. His leadership in ...
(Date:7/10/2014)... CA (PRWEB) July 10, 2014 OMICS ... Bioanalytical techniques during 18-20 August, 2014 at Double Tree ... review the recent developments in Analytical & Bioanalytical research ... globe. , Speaking on this occasion, Dr. Srinubabu Gedela, ... Analytica Acta conference is a remarkable one in bringing ...
(Date:7/10/2014)... Ind. , July 10, 2014 /PRNewswire/ ... its use of capnography for respiratory monitoring ... group of healthcare leaders in embracing state-of-the-art ... how effectively patients are breathing and can ... occurs. By measuring the amount of carbon ...
Breaking Biology Technology:Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Terascala Expands Executive Team 2Terascala Expands Executive Team 3A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2
... SHANGHAI, Sep. 4 /PRNewswire-Asia-FirstCall/ -- China-Biotics, Inc.,(Nasdaq: ... Chinese firm,specializing in the manufacture, research, development, marketing ... Company,s,management team will attend the Susquehanna International Group ... The SIG 3rd Annual ...
... , AURORA, Ontario, Sept. 4 Helix BioPharma ... has accepted subscriptions for the purchase, by way of private placement, ... gross proceeds totaling CDN$13,581,250. The Company anticipates closing the private ... unit consists of one common share and one common share purchase ...
... Kendle (Nasdaq: KNDL ), a leading, global full-service ... the upcoming Robert Baird 2009 Health Care Conference on Sept. ... New York City. , , (Logo: ... Kendle,s formal presentation will be given by Senior Vice President ...
Cached Biology Technology:China-Biotics, Inc. to Attend the SIG 3rd Annual Beijing Management Summit 2Helix BioPharma Announces $13.5 Million Private Placement 2Kendle to Present at Robert Baird 2009 Health Care Conference 2
... The steadylite plus assay system ... assay sensitivity, Designed for batch-processing ... for higher density microplates such ... Odor free, Convenient storage conditions ...
... The versatile Promega Flipper® Racks are ... of your small tubes. These polypropylene racks ... choice for freezer storage. They may also ... Each rack is two-sided; one side accommodates ...
Sf9 cells derived from Spodoptera frugiperda ovarian cells (Sf21 cells) are commonly used to isolate and propagate recombinant AcMNPV viral stocks and to produce recombinant proteins....
...
Biology Products: