HOME >> BIOLOGY >> NEWS
Highlights from the April issue of Ecology

In the April issue of Ecology, organisms on land, sea, and air provide several interesting articles.

Brown-headed cowbirds skew host offspring sex ratios

It's long been known that Brown-headed cowbirds, birds that like cuckoos lay eggs in the nests of other birds, reduce the number of offspring from a nest they parasitize. Now a recent report shows they also affect the sex of the host's offspring. Liana Zanette, Elizabeth MacDougall-Shakelton, (University of Western Ontario), Micheal Clinchy (University of Toronto at Scarborough) and James Smith (University of British Colombia, Vancouver) found the presence of cowbird chicks increase competition in the nests of Song Sparrows, with the sparrow's female chicks loosing out.

Shifts in open-ocean fish communities coinciding with the commencement of commercial fishing

Comparing data from a 1950's scientific survey with observations collected on longline fishing vessels, Peter Ward and Ransom Myers (Dalhousie University, Canada) found a major shift in the size and diversity of fish in areas of the tropical Pacific Ocean since the introduction of industrial fishing. Large predators such as sharks and large tuna declined in abundance an average of 21 percent, while the overall size of these animals also grew smaller. Smaller species, such as pelagic stingrays, increased in numbers.

Plant defense theory provides insight into interactions involving inbred plants and insect herbivores

Inbreeding is generally seen as detrimental, even for some self-fertilizing plants. Helen Hull-Sanders* and Micky Eubanks (University of Auburn) compared the reactions of inbred and non-inbred entire-leaf morning glory plants to various insects. The outbred, or cross-pollinated plants, were more resistant to generalized insect herbivores such as aphids while the self-fertilizing inbred plants fared better against leaf-chewing herbivores. This study is the first attempt
'"/>

Contact: Annie Drinkard
annie@esa.org
Ecological Society of America
15-Apr-2005


Page: 1 2

Related biology news :

1. Highlights from the July 2007 Journal of the American Dietetic Association
2. AGU Journal Highlights -- April 16, 2007
3. Highlights from the April 2007 Journal of the American Dietetic Association
4. Highlights from the January 2007 Journal of the American Dietetic Association
5. Highlights from the December 2006 Journal of the American Dietetic Association
6. Highlights from the November 2006 Journal of the American Dietetic Association
7. Highlights from the October 2006 Journal of the American Dietetic Association
8. Highlights from the September 2006 Journal of the American Dietetic Association
9. Highlights from the August 2006 Journal of the American Dietetic Association
10. Highlights from the June 2006 Journal of the American Dietetic Association
11. Highlights from the May 2006 Journal of the American Dietetic Association

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/22/2016)... , June 22, 2016  The American College of Medical ... Show Executive Magazine as one of the fastest-growing trade ... 25-27 at the Bellagio in Las Vegas ... highest percentage of growth in each of the following categories: ... companies and number of attendees. The 2015 ACMG Annual Meeting ...
(Date:6/21/2016)... , June 21, 2016 NuData Security announced ... new role of principal product architect and that ... director of customer development. Both will report directly ... officer. The moves reflect NuData,s strategic growth in ... to high customer demand and customer focus values. ...
(Date:6/15/2016)... New York , June 15, 2016 /PRNewswire/ ... a new market report titled "Gesture Recognition Market by ... and Forecast, 2016 - 2024". According to the report, ... USD 11.60 billion in 2015 and is estimated ... reach USD 48.56 billion by 2024.  ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , ... June 23, 2016 , ... ... pleased to announce the launch of their brand, UP4™ Probiotics, into Target stores ... 35 years, is proud to add Target to its list of well-respected retailers. ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is pleased ... received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval of ... Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods perform ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the ... at the Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application ... team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our ...
(Date:6/23/2016)... , June 23, 2016 On Wednesday, ... at 4,833.32, down 0.22%; the Dow Jones Industrial Average edged ... closed at 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on ... ), Nektar Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals ... (NASDAQ: BIND ). Learn more about these stocks ...
Breaking Biology Technology:
Cached News: