Articles with the keyword: 
Species still have more viable offspring if they can choose their best mate
kitty submitted, created time 1 year 3 months (www.eurekalert.org)
New research that crosses several species boundaries shows that when animals must choose less-than-preferred (to them) mates, females and males apparently have ways to compensate that increase the chance their offspring will survive. 
How the plant immune system can drive the formation of new species
doris submitted, created time 1 year 4 months (biology.plosjournals.org)
Sometimes, genes that are innocuous in the parents are deleterious when combined in the offspring. Here, some genes involved in hybrid necrosis in plants have been identified.
Species detectives track unseen evolution
bianjie submitted, created time 1 year 5 months (www.eurekalert.org)
New species are evading detection using a foolproof disguise -- their own unchanged appearance. Research published in the online open access journal, BMC Evolutionary Biology, suggests that the phenomenon of different animal species not being visually distinct despite other significant genetic differences is widespread in the animal kingdom. DNA profiles and distinct mating groups are the only way to spot an evolutionary splinter group from their look-alike cousins, introducing uncertainty to biodiversity estimates globally.
Distribution and abundance of Ponto-Caspian amphipods in the Belarusian section of the Dnieper River
Alone submitted, created time 1 year 5 months (aquaticinvasions.ru)
During a survey of the Belarusian part of the Dnieper River conducted on 19-22 July 2006, we revealed five invasive Ponto-Caspian amphipod species in its benthos community: Chaetogammarus ischnus, Chelicorophium curvispinum, Dikerogammarus haemobaphes, Dikerogammarus villosus and Pontogammarus robustoides. All of them except C. curvispinum are reported in Belarus for the first time. The number of alien amphipod species and their abundance were found to decrease gradually in the upper sections of the river.
Rapid evolution of defense genes in plants may produce hybrid incompatibility
bianjie submitted, created time 1 year 5 months (www.biologynews.net)
One of the basic tenets of evolution is speciation in which populations of the same species become so genetically and morphologically variable that they can be classified as two different species. Individuals of these species may be capable of mating, but they may not produce offspring, and if offspring are produced, they will be sterile or so defective that they die before they are able to reproduce.
Trading bans have a perilous downside for wildlife
annatto submitted, created time 1 year 7 months (www.newscientist.com)
As we can see ,wildlife trading bans set up to protect endangered species may in fact put them in greater peril.The Convention on International Trade in Endangered Species (CITES) was introduced in 1975 to protect animals at risk of extinction. Conservationists have noticed, however, that CITES trade bans have a nasty side effect. In the period between a ban's proposal and its legal enactment, trade in a given species spikes dramatically, says Philippe Rivalan at Paris-Sud University in France.
Symbiotic bacteria may save endangered frogs
Darkfrog submitted, created time 1 year 8 months (www.nature.com)
I'm a bit leery of introducing one species to control another -- in this case, probiotic bacteria to kill a fungus that's killing off several amphibian species -- but if the frogs are on the brink of extinction, it might be worth the risk.
What do you think? The stakes are high. Just think of the damage the bacteria could do if something goes wrong. This is a genie-out-of-the-bottle trick. Nothing's going back in.
Slide Show: Hundreds of Troubled Species Await Official Protection
julie submitted, created time 1 year 8 months (www.sciam.com)
"The U.S. Fish & Wildlife Service and its parent agency, the Department of the Interior, have lately come under fire for their management the Endangered Species Act. Last week a document was leaked that reveals plans to revise the law without prior congressional approval. "
Half of magnolias face extinction
amanda submitted, created time 1 year 8 months (edition.cnn.com)
"Up to half of the world's magnolia species are in danger of extinction, according to a new study by conservationists."
Temper your enthusiasm for the tropics: moderate climates show great biodiversity
Hecate submitted, created time 1 year 9 months (www.nature.com)
I remember reading about this a long time ago. The Kitlope watershed, in Canada, was called a "northern rainforest," because even though it had fewer species overall, those species were more distantly related. This seems to contradict that in some ways. The article describes evolution moving at a faster pace in areas where the seasons change.
In many habitats, competition is the drama, but benefactors set the stage
cappuccion submitted, created time 1 year 11 months (www.eurekalert.org)
Is the world basically good or basically bad? It appears that in the natural world the answer is "basically good." Positive interactions in which plants and animals benefit from association with one another create the basis for many of the world's ecosystems. Those positive effects of living habitats are the most important factor in driving the diversity and abundance of organisms in many ecosystems. The joint effort of every species keep the development of ecosystem, although some species will in the lower postion and some in higher position. I think that can be taken for grant.
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