Population Biology

Credit: University of Guam Collective research to date regarding nutrients found in the leaves of contemporary cycad species has been inconsistent as far as data collection and narrow in scope, according to a University of Guam-led…

It is now the third year that gray whales have been found in very poor condition or dead in large numbers along the west coast of Mexico, USA and Canada. A new international study now suggests that starvation is contributing to these…

Black women have higher recurrence and mortality rates than non-Hispanic white women for certain types of breast cancer Black women have higher recurrence and mortality rates than non-Hispanic white women for certain types of breast…

Credit: Courtesy Brooke Penaluna Delivering a minor electric shock into a stream to reveal any fish lurking nearby may be the gold standard for detecting fish populations, but it's not much fun for the trout. Scientists at…

What The Study Did: This study monitored suicide-related internet search rates during the early stages of the COVID-19 pandemic in the United States and researchers report searches for suicide decreased during that time. Although this…

Bycatch of protected marine mammals took greater toll than previously realizedCredit: Bill Keener/The Marine Mammal Center Harbor porpoises have rebounded in a big way off California. Their populations have recovered…

New tool gauges impacts of warming waters on over 200 fish speciesCredit: Credit: Ludovic Lhotte Warming ocean waters could reduce the ability of fish, especially large ones, to extract the oxygen they need from their environment.…

BROOKLYN, New York, Tuesday, January 19, 2021 - The World Health Organization reports that as of January 19, 2021, there are approximately 94 million cases of COVID-19 globally, with over 2 million deaths. In the face of these numbers --…

Credit: Martijn Hammers, University of Groningen The offspring of older animals often have a lower chance of survival because the parents are unable to take care of their young as well as they should. The Seychelles warbler is a…

Young Seychelles warblers fare better if their elderly parents have help raising them, according to new research from the University of East Anglia (UEA) and the University of Groningen. Seychelles warblers, a cooperatively breeding…

New tools will help ecologists predict when species may be at riskCredit: U.S. Fish and Wildlife Service More than 3,000 animal species in the world today are considered endangered, with hundreds more categorized as vulnerable.…

Credit: © 2021 KAUST; Anastasia Serin Computer simulations of cells evolving over tens of thousands of generations reveal why some organisms retain a disused switch mechanism that turns on under severe stress, changing some of…

Having genitals of a certain shape and size gives male flies a major reproductive advantage, new research shows. University of Exeter scientists examined the reproductive success of male Drosophila simulans flies both alone with a female…

A trap for plastics in coastal areasCredit: UNIVERSITY OF BARCELONA Posidonia oceanica seagrass -an endemic marine phanerogam with an important ecological role in the marine environment- can take and remove plastic materials…

Credit: Jim Rivers, OSU College of Forestry CORVALLIS, Ore. - Researchers at Oregon State University have found that the blue orchard bee, an important native pollinator, produces female offspring at higher rates in the aftermath of…

Credit: Photo by Alison McAfee. Honey bee health has been on the decline for two decades, with U.S. and Canadian beekeepers now losing about 25 to 40% of their colonies annually. And queen bees are failing faster than they have in the past…

A recent Point of Reference article, "The meat of the matter: Environmental dissemination of beef cattle agrochemicals," published in Environmental Toxicology and Chemistry, points at synthetic chemical cocktails being emitted from cattle…

International Ukraine Genetic Diversity Project finds a quarter of the genetic variation in Europe, dramatically increasing information on population diversity and medical genetic variationCredit: Oakland University Today, the…

Researchers use animal tracking data to highlight fences that impede the movements of mule deer and pronghorn antelopeCredit: Image courtesy Wenjing Xu Berkeley -- Each year, thousands of migratory mule deer and pronghorn antelope…

Credit: Kate Anton, Penn State UNIVERSITY PARK, Pa. -- Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State. The findings suggest that addressing…