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:
TAG: Highlights from the April issue Ecology

(Date:10/17/2014)... . To date, ... overdoses, doctors are often limited to supportive therapy such as ... combination of drugs involved. So what can be done if ... ETH professor Jean-Christophe Leroux from the Institute of Pharmaceutical Sciences ... question. "The task was to develop an agent that could ...
(Date:10/16/2014)... efficiently, they are anything but sustainable: environmental damage ... is becoming increasingly evident. Despite their disadvantages, however, ... regarded as the sole possibility of achieving higher ... Bernhard Schmid, an ecology professor at the University ... agriculture and forestry. After all, a new study ...
(Date:10/15/2014)... As our ability to assess the pandemic risk from ... developments, we must not allow ourselves to become complacent ... an international consortium of scientists. , Influenza pandemics arise ... have yet to develop widespread immunity – spreads in ... in the past 100 years, the worst of which ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2
(Date:10/22/2014)... Involution Studios , a healthcare software ... infographic, Understanding Ebola . The goal of ... to follow informative tool for anyone wanting to know ... prevention. , "As the news has spread in all ... represents not only a healthcare crisis with global impact, ...
(Date:10/22/2014)... According to new market research report ... Integration, Deployment & Support), by Service Model (SaaS, ... Others (Hybrid & Community)) - Global Forecast to ... Cloud Professional Services Market into various sub-segments with ... also identifies the drivers and restraints for this ...
(Date:10/22/2014)... SAN DIEGO and HONG KONG ... an innovative rare disease therapeutics enterprise, announced today that ... joined the company as vice president, research. Dr. McKew ... research, including key leadership positions at the National Institutes ... to its acquisition by Wyeth). Dr. McKew will lead aTyr,s ...
(Date:10/20/2014)... , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" ... which brings Q3 orders to $5.8 million and provides a good ... in North America and one in the ... bid new projects at record levels," said Peter Bruijns , ... at the end of Q3 than they have been for any ...
Breaking Biology Technology:Involution Studios' Ebola Infographic Provides Key Disease Information and Statistics at a Glance 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3
Cached News: