MarineBio Conservation SocietyInvasive Species News   :: ScienceDaily

Application of statistical method shows promise mitigating climate change effects on pine

Thu, 20 Apr 2017 16:21:42 EDT ~ Confronting evidence that the global climate is changing rapidly relative to historical trends, researchers have developed a new statistical model that, when applied to the loblolly pine tree populations in the southeastern United States, will benefit forest landowners and the forest industry in future decades. Find out more...

Action required: Invasive fungus is killing European salamanders

Wed, 19 Apr 2017 13:17:23 EDT ~ A new fungal disease brought in from Asia is threatening European salamanders. Once the amphibians become infected, they die within a brief period of time, report biologists. Because saving the infected populations is still not possible, Switzerland has preventively imposed an import ban for salamanders and newts. Find out more...

Bears breed across species borders

Wed, 19 Apr 2017 09:31:51 EDT ~ Scientists have sequenced the entire genomes of four bear species, making it now possible to analyze the evolutionary history of all bears at the genome level. It shows that gene flow, or gene exchange, between species by extensive hybridization, is possible between most bear species, not only polar and brown bear. The DNA samples of different bear species came from different European zoos, underlining their importance not only for conservation, but also for research. The study also questions the existing species concept in general, because other genome studies have frequently found gene flow among species. Find out more...

Prescribed forest fire frequency should be based on land management goals

Tue, 18 Apr 2017 12:08:20 EDT ~ Researchers have studied forests subjected to different frequencies of fires to determine what effects fire can have on oak forests over long periods of time. They found that the frequency of prescribed forest fires should be determined based on the long-term goals of land managers. Find out more...

Tracking down water pollution through DNA of algae

Tue, 18 Apr 2017 11:43:44 EDT ~ The degree of pollution of rivers resulting from human activities is assessed using different biotic indices. The latter reflect the ecological status of a river based on the quantity and diversity of organisms selected as bioindicators, due to their ecological preferences and tolerance to pollution. This is the case of diatoms, algae consisting of a single cell surrounded by a silica skeleton, recommended by researchers as one of the ideal bioindicators for rivers and lakes. Find out more...

Tracing the puzzling origins of clinging jellyfish

Tue, 18 Apr 2017 09:45:06 EDT ~ The first genetic study of the diversity of clinging jellyfish populations around the globe has discovered some surprising links among distant communities of jellies and also revealed there may be more than one species of the infamous stinger. Find out more...

Traces of Zika Found in Asian tiger mosquito in Brazil

Fri, 14 Apr 2017 10:59:07 EDT ~ In a recent test of Asian tiger mosquitoes collected in Brazil, researchers found fragments of Zika virus RNA, raising concerns that it may be carried by species other than Zika's known primary vector, the yellow fever mosquito. The research does not conclude that the Asian tiger mosquito (Aedes albopictus) can transmit Zika to humans, but it highlights the need for deeper research into additional potential vectors for the virus. Find out more...

Citizen scientists help identify shorebird extinction threat

Thu, 13 Apr 2017 09:50:43 EDT ~ A major contributor to the dramatic decline of migratory shorebird populations in Australia has been identified by researchers. Australian shorebirds were under threat due to the degradation and destruction of mudflats thousands of kilometers away in north-east Asia, they say. Find out more...

The problem expands for avocado growers: 9 beetle species carry deadly fungus

Wed, 12 Apr 2017 11:17:14 EDT ~ Many people love their avocados not to mention guacamole dip. So it was bad enough when scientists said a beetle was ravaging avocado trees in South Florida. Then scientists found out that the redbay ambrosia beetle -- originally determined to transmit laurel wilt -- is rare in avocado groves but that six other beetle species could carry the laurel wilt pathogen. Find out more...

Mosquito egg hunt: Many Culex species prefer alternatives to standing water

Wed, 12 Apr 2017 10:13:11 EDT ~ The conventional wisdom about where many mosquitoes lay their eggs -- in standing water -- is not always wise. Research into a diverse group of mosquitoes shows that many, if not most, regularly lay their eggs on a variety of surfaces, and in a surprising location: above nearby water. The findings run counter to scientific generalizations about the mosquitoes' egg-laying habits and may complicate the work of researchers and mosquito control professionals. Find out more...