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Diversity in Biological News

A global model for the origin of species independent of geographical isolation

... The tremendous diversity of life continues to puzzle scientists, long ... results provide additional evidence that species diversity arises without specific physical barriers," the ... complexity in shaping the patterns of biological diversity that we see around us today," said Kaufman. Our ...

Seals quickly respond to gain and loss of habitat under climate change

... and evolutionary processes that determine diversity within and among species. Tracking these ... The Antarctic population crashed and much diversity was lost." This habitat was released after ... migration away, coupled with a loss of diversity 1,000 years ago, when the sea ice is thought to ...

Working to conserve endangered 'Playboy' bunnies

... present in natural populations. The more genetic diversity a species has, the greater its rate of survival is. "The loss of genetic diversity can have long-term repercussions by affecting the ... "Our hope is to both characterize the amount of diversity in the Keys populations and determine which ...

Domestication of Capsicum annuum chile pepper provides insights into crop origin and evolution

... of times it was domesticated, and the genetic diversity present in wild relatives. To answer these ... Dr. Kim et al. found a large amount of diversity in individuals from the Yucatan Peninsula, making this a center of diversity for chiles and possibly a location of C. annuum ...

Antibiotics take toll on beneficial microbes in gut

... of "good bacteria" did not recover its former diversity even many weeks after a course of antibiotics was ... the health of the world's continents and oceans. diversity is probably important in the gut microsystem as ... The result is a much more complete picture of the diversity of microbes in the gut. Mice, which normally ...

Immune genes adapt to parasites

... And some of that variation correlated with the diversity of parasites that live alongside humans. The data ... Some of the genes that were shaped by worm diversity made perfect sense, as the proteins they encode ... however, seemed to be influenced more by the diversity of viruses, bacteria, and fungi than by that of ...

AIBS recognizes diversity in the biological sciences

... persons with disabilities. Each year through the diversity Scholars and diversity Leadership Awards, AIBS recognizes the academic ... are pleased to announce the 2009 honoree: diversity Scholar: Danielle N. Lee, PhD student, University ...

Symposia selected for Entomological Society of America meeting

... of Aquatic Insects in Scientific Research diversity and Biology of Parasitoid Hymenoptera: A tribute ... in Greenhouse and Cropping Systems Pollinator diversity in Urban, Agricultural, and Native Landscapes ... Management for Human Survival Systematics and diversity of Coleoptera The Colorado Potato Beetle ...

Study of protein structures reveals key events in evolutionary history

... new forms coincided with the rapidly increasing diversity of the three superkingdoms of life (bacteria; the ... includes plants and animals) hosting the greatest diversity of modules. "This explosion of diversity allowed the eucarya to do things with their ...

Unclear regulations obstacle to biological diversity

... International environmental law on biological diversity is now being called into question in a ... Unclear legislation entails that biological diversity falls under an old legal system, and this ... the rules and regulations surrounding biological diversity in order to find out how far the regulations go. ...

Coffee cultivation good for diversity in agrarian settlements but not in forests

... can have a positive impact on plant and animal diversity in those parts of the landscape that are ... in a forest, which is also common, the impact on diversity is negative. This is shown by researchers at ... large shade trees can be home to a great diversity of forest plants. It is shown for the first time ...

Identifying mega-targets for high-yield plant breeding

... WI , February 2, 2009 -- Promoting genetic diversity in crops is traditional practice for agriculture ... supplies face with the changing climate. Genetic diversity in a breeding program is essential as an ... genetic progress. The incorporation of diversity into a breeding program, however, should be ...

February 2009 Geology and GSA Today media highlights

... fossil collections. Sessa et al. find that the diversity of fossil assemblages in sediments is about twice as high as the diversity found in coeval lithified rocks, due to a loss of ... of mantle thermal anomalies, and the inferred diversity in hotspot buoyancy fluxes and excess ...

Our microbes, ourselves

... In terms of diversity and sheer numbers, the microbes occupying the ... allows a significantly larger number and greater diversity of gut microbia to be identified. The group's ... is the first molecular survey of gut microbial diversity following surgical weight loss, and has helped ...

Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling

... the new timeline, diatoms achieved their peak diversity at least 10 million years before grasslands ... there was a truly significant change in diatom diversity at all, it happened 30 million years ago," ... the global cooling that followed. "Why diatom diversity peaked for 4 to 5 million years and then dropped ...

Shade coffee benefits more than birds

... beneficial creatures, but also maintain genetic diversity of native tree species and can act as focal ... dispersal affects the tree population's genetic diversity begged to be addressed before she proceeded with ... and evolutionary biology who studies genetic diversity patterns in tropical tree species, Jha collected ...

A fisheries catch-22

... reared in captivity can rapidly lose the genetic diversity needed to adapt and survive in the wild, and that the rate of loss of diversity can both vary across breeding programs and be ... on the effects of captive breeding on the genetic diversity of fishes need to be collected, but also that ...

Land iguanas under continuing threat on Galapagos archipelago

... identify populations and characterize the genetic diversity within and the levels of genetic differentiation ... draw conclusions regarding relationships, genetic diversity and genetic drift among various populations. ... not always detailed. As a result, the genetic diversity of captive and reintroduced populations is ...

Shifts in soil bacterial populations linked to wetland restoration success

... in restored wetlands, decreased soil bacterial diversity represents a return to biological health," said ... for farming host greater soil bacterial diversity because they present conditions more suitable for ... determined soil bacterial composition and diversity within restored wetlands, agricultural fields and ...

'Living fossil' tree contains genetic imprints of rain forests under climate change

... neotropical rain forests. By measuring genetic diversity between existing populations, Dick and coworker ... What we're seeing in the patterns of genetic diversity is a signature of that forest history." In the ... for more or less continuous forest, less genetic diversity is found among populations, Dick said. "There's ...

Diversity of trees in Ecuador's Amazon rainforest defies simple explanation

... fragmentation and species extinctions on life's diversity without a coherent model of how communities are organized; but a unified theory of diversity patterns in ecological communities remains ... species to understand the patterns of biological diversity across the world. ...

DFG continues to strengthen biodiversity research

... years, on topics ranging from recording existing diversity to investigating the functions of biodiversity to ... of the Parties to the Convention on Biological diversity in Bonn. This brochure shows a variety of topics ... in the agenda of the Convention on Biological diversity (CBD). The CBD was concluded in 1992 in Rio de ...

New CU-Boulder study shows diversity decreases chances of parasitic disease

... studies to definitively show that an increase in diversity of host species actually can reduce parasite ... study has implications for the declining global diversity of wildlife species that are susceptible to ... Other research has shown that a decrease in diversity in mammal host species for ticks carrying Lyme ...

Snakes, salamanders and other creatures thrive in areas with higher deer populations

... salamanders, and invertebrates studied, a greater diversity of animals were found in areas with deer ... beetles, and many more invertebrates. Species diversity was determined by comparing the variety of insect ... in grazed areas than in exclosures and the diversity of arthropods was also 14 percent greater in ...

Diversity of plant-eating fishes may be key to recovery of coral reefs

... study to demonstrate the importance of herbivore diversity in enhancing the growth of coral reefs, the ... "The data we are seeing in Fiji suggests that diversity may be even more important there than it was in ... be to maintaining healthy ecosystems. "Species diversity is critically important, but we are losing ...

Study: Bird diversity lessens human exposure to West Nile Virus

... in urbanized and suburbanized areas where bird diversity suffers." The most common 'reservoir' species ... in the forthcoming issue of Oecologia . While diversity of bird species is important in this scenario, it ... human cases of WNV and a tool called the Shannon diversity Index to estimate ...

BioScience tip sheet, October 2008

... allowed the systematic exploration of fungal diversity for the first time. Results show extremely high diversity and variability of fungi in natural environments, ... sequencing has the potential to characterize this diversity in a class of organisms that is ecologically ...

Scientists discover a new Pacific iguana

... source. "Our new understanding of the species diversity in this group is a first step in identifying ... study finding for conservation of the genetic diversity in these iguanas is that, with only one ... that scientists are just now describing the diversity in even such colorful and distinctive groups as ...

Recovery efforts not enough for critically endangered Asian vulture

... as the vultures have, the amount of genetic diversity in the population also is likely to dwindle. This ... Johnson said, because a population's genetic diversity reflects its ability to adapt to environmental ... wild breeding colony, to see how genetic diversity in the wild population has changed as the ...

Microbes, by latitudes and altitudes, shed new light on life's diversity

... they are changing attitudes about evolutionary diversity on Earth, from oceanic latitudes to mountainous ... primarily drives the richness of bacterial diversity in the oceans, and that life, both plant and ... "What we found," Green said, "was that the diversity gradient more correlated with temperature than ...

Study suggests past climate changes may have promoted the formation of new species in the Amazon

... Today, the Amazon basin is home to the richest diversity of life on earth, yet the reasons why this came ... actually represent the majority of the animal diversity in the Amazon," said Dr. Scott Solomon, the lead ... Amazon basin could be responsible for generating diversity in leafcutter ants. The authors rejected the ...

UCSB researcher leads worldwide study on marine fossil diversity

... much of the conventional wisdom about the diversity of marine fossils and extinction rates. Alroy, ... of Science, "Phanerozoic Trends in the Global diversity of Marine Invertebrates." A team that included 34 ... Alroy's report shows a new curve in the diversity of ancient marine invertebrate species such as ...

Setting the record right: species diversity less dramatic than previously believed

... of Science challenges the long-held belief that diversity of marine species has been increasing ... since the beginning of the Phanerozoic Era), the diversity of animal life in the seas has undergone a ... says Olszewski. A steep increase in the diversity was believed to have occurred only between 145 ...

Ancient marine invertebrate diversity less explosive than thought

... diversity among the ancestors of such marine creatures as ... Penn State. "Understanding what happened with diversity in the past can help us provide some prediction ... in today's (July 4) issue of Science, a new diversity curve that shows that most of the early spread of ...

Species have come and gone at different rates than previously believed

... diversity among the ancestors of such marine creatures as ... of Penn State. "Understanding what happened with diversity in the past can help us provide some prediction ... report in the July 4 issue of Science, a new diversity curve that shows that most of the early spread of ...

Tasty meal out of reach

... and animal diseases are very important for the diversity of natural areas. Smit investigated a large ... process that leads to greater variation and diversity in a landscape. Prickly shrubs such as blackthorn ... and natural disturbances when it comes to the diversity of natural grasslands. ...

Ancient Mexican maize varieties

... one variety will not be adequate to represent the diversity of maize worldwide. Mexican scientists are also ... ancient landraces to recapture the full genetic diversity of this complex and adaptable crop. Dr. ... and analyzing its molecular and functional diversity relative to other maize races. Dr. ...

Climate change could severely impact California's unique native plants

... able to move into new habitats within a century, diversity of species in parts of California might actually ... the northwest and central coast. Nevertheless, diversity in the northern Sierra and in southern California ... to-100-year time frame of global warming - plant diversity will decrease everywhere by as much as 25 ...

Climate change hastens extinction in Madagascar's reptiles and amphibians

... however, is distinguished by the number and diversity of species, the demonstrated meteorological ... regions. Raxworthy has been surveying the diversity of Madagascar's herpetological assemblage since ... Raxworthy's results are robust because of the diversity of species included in his analyses. These ...

'Barren' seafloor teeming with microbial life

... The scientists also found higher microbial diversity on the rocks compared with other vibrant systems, ... vents. Even compared with the microbial diversity of farm soilviewed by many as the ... used modern molecular methods to quantify the diversity of microbes in remote deep-sea environments, said ...
Other Contents
(Date:8/31/2014)... study, published today in Nature Climate Change , suggests ... will reach, if not exceed, the global targets for total ... authors say we should all think carefully about the food ... diets across the world is just one of a number ... climate change and ensure there is enough food for all. ...
(Date:8/29/2014)... MISSOULA Until recently, little has been known about ... An international team of scientists, one of whom is ... breakthrough by showing that genes controlling the development of ... for rabbit domestication., The study was published Aug. 28 ... genetic questions. It is online at http://www.sciencemag.org/ ., ...
(Date:8/29/2014)... release is available in German . ... signals between organisms is considered the oldest form of ... between conspecifics, for example, the sexual attraction between males ... responses and to coordinate reproductive behavior in males and ... University of the Algarve in Faro, Portugal, and at ...
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