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UrduHoney 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 in their…
Tag: POPULATION BIOLOGY
Harbor porpoises on the decline in the German North Sea
Greater conservation efforts are needed to protect the species, which has been affected by human activities at sea
‘hail to the queen’ – saving the Caribbean queen conch
World’s leading expert on queen conch aquaculture publishes step-by-step manual to culture and restore the queen conch
Low genetic diversity in two manatee species off South America
Study raises the alarm for better conservation actions
Novel method identifies areas most suitable for conservation of black lion tamarin
The researchers used modeling to show which areas are suitable in terms of forest cover and climate for occupation by the endangered species, which is endemic to the state of São Paulo
Ecologist receives grant to study pollinator habitat in utility rights-of-way
Findings will help power companies promote ecosystem health in landscapes set aside for electric power delivery lines
Risk of extinction cascades from freshwater mussels to a bitterling fish
Decline of unionid mussels heightens hybridisation of native and introduced bitterling fish
Patient characteristics associated with telemedicine access during COVID-19 pandemic
What The Study Did: This study identified racial/ ethnic, sex, age, language, and socioeconomic differences in accessing telemedicine for primary care and specialty ambulatory care; if not addressed, these differences may compound existing inequities in care among vulnerable populations. Authors:…
Human-made landscape promotes coexistence of two normally separated Andean warblers
Two Andean warbler species that typically occur at different elevations and hunt by tricking insects to escape can co-occur at the same elevation due to fragmentation of tropical montane forests caused by human agricultural practices
Survival of the thickest: Big brains make mammal populations less dense
Brain size shown to influence mammal abundance in local areas for the first time
Weedy Seadragon genomics reveal highly distinct populations
Charismatic, iconic and Instagram-friendly, the weedy seadragon is a favourite with divers and snorkellers. The first genomic study of east coast Australian seadragon populations can now reveal “weedies” from NSW, Victoria and Tasmania are significantly different. The study, published in…
Better learners in collared flycatchers are more likely to imitate competitors
Effect of faster learning was only found in females
Genetic exchange discovered in anciently asexual rotifers
Skoltech’s evolutionary biologists discovered recombination in bdelloid rotifers, microscopic freshwater invertebrates, which have long been regarded as ‘an evolutionary scandal’ due to their presumed ancient asexuality. The existence of such anciently asexual groups calls into question the hypothesis that sexual…
Study finds growing numbers of critically endangered sawfish in Miami waters
The findings have important implications to better protect this endangered species
Weddell sea: Whale song reveals behavioral patterns
The AWI’s underwater recordings confirm: Minke whales prefer the shelter of sea ice, while humpback whales avoid it
Satellite tracking supports whale survival
Study traces pygmy blue whale migration from Australia to Indonesia
Skinnier but resilient geese thriving in the high Arctic
Long-term study shows decreasing body condition but no effect on population
Scientists set a path for field trials of gene drive organisms
As genetically engineered organisms ramp up, a multidisciplinary coalition offers a framework for ethical, socially engaged and transparent field practices
Squirrels need good neighbours
Living beside familiar neighbours boosts a squirrel’s chances of survival and successful breeding, new research shows. The study measured year-to-year survival of North American red squirrels – and found keeping the same neighbours was so beneficial that it outweighed the…
Babbler bird falls into climate change trap
Animals can fall into an “ecological trap” by altering their behaviour in the “wrong direction” in response to climate change, researchers say. The so-called “rescue hypothesis” suggests many species might successfully adapt to changing conditions, especially those that are flexible…
King of the Cave: New centipede on top of the food chain in the sulphurous-soaked Movile
Deemed to never see the light of the day, a new species of endemic, troglobiont centipede was discovered by an international team of scientists in the Romanian cave Movile: a unique underground ecosystem, where the oxygen in the air might…
Oral hormone therapy shown to significantly alter metabolome of menopausal women
UMass Amherst research advances molecular understanding of HT-related disease risks and protective effects
Genome sequencing paves the way for more sustainable herring fishery
An international team of Swedish, Norwegian, Danish and Irish scientists has used whole genome sequencing to characterise 53 herring populations from the Atlantic Ocean and the Baltic Sea. They have developed genetic markers that make it possible to better monitor…
UMaine-led research group find that trees are out of equilibrium with climate
Forecasts predicting where plants and animals will inhabit over time rely primarily on information about their current climate associations, but that only plays a partial role. Under climate change, there’s a growing interest in assessing whether trees and other species…
Association of political party affiliation with physical distancing among young adults during COVID-19 pandemic
What The Study Did: Researchers estimated the associations of political party affiliation with physical distancing behaviors among young adults, a population with high rates of COVID-19. Authors: Adam M. Leventhal, Ph.D., of the Keck School of Medicine at the University…
Fan mussel larval dispersal for the future of an endangered species
Science to protect an emblematic species in the Mediterranean
Artificial intelligence helps scientists develop new general models in ecology
In ecology, millions of species interact in billions of different ways between them and with their environment. Ecosystems often seem chaotic, or at least overwhelming for someone trying to understand them and make predictions for the future. Artificial intelligence and…
Pitt scientists identify genetic risks of rare inflammatory disease
PITTSBURGH, Dec. 11, 2020 – In a paper published today in the American Journal of Human Genetics, a group of international collaborators led by researchers from the University of Pittsburgh School of Medicine identified new genetic associations that can predict…
‘Cold spots’ not hotspots key to rapid biodiversification
The Amazon rainforest may be a hotspot for animal and plant diversity, but this week, scientists report that new species actually form there less often than previously thought. Places like deserts and mountaintops that do not have a lot of…
Can sting rays and electric rays help us map the ocean floor?
Researchers at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have completed a feasibility study indicating that electric rays and sting rays equipped with pingers will be able to map the seabed through natural exploration The ocean is…
Silky sharks find hope in Atlantic, remain targets in Indo-Pacific
p>New research shows that conservation efforts in the Atlantic Ocean may be working for one of the most popular — and endangered — species that ends up in the global shark fin trade. Diego Cardeñosa — an FIU postdoctoral researcher…
Nature conservation requires more dynamic approach to weather impacts of climate change
Current nature conservation practices are not sufficiently flexible and dynamic to weather the impacts of climate change.
Ancient alliance
Symbiotic relationship between California oaks and mutualist fungi appears to provide a buffer for climate change
Honey bees fend off giant hornets with animal dung, U of G researchers discover
Honeybees spread animal dung on the entrance of their hives to effectively ward off giant hornets
A new evolutionary clue
University of Missouri researcher adds to timeline of human evolution by studying an island fox
Natural reward theory could provide new foundation for biology
A link between evolution over short time frames (microevolution) and long time frames (macroevolution) that could open new approaches to understanding some of biology’s deepest questions is proposed by Dr Owen Gilbert of the Department of Integrative Biology at the…
SARS-CoV-2 in wastewater solids could help monitor COVID-19 spread
Researchers reporting in ACS’ Environmental Science & Technology have discovered that measuring SARS-CoV-2 in settled solids from sewage treatment plants could be a more sensitive approach than measuring the virus in wastewater flowing into the facilities.
Stunning discovery reveals bonefish dive 450 feet ‘deep’ into the abyss to spawn
FAU Harbor Branch scientists and collaborators are first to track a shallow water fish diving 450 feet deep to spawn
Risks of invasive and alien predator species for health and ecology
The research project ‘ZOWIAC’ by Goethe University and the Senckenberg Society for Nature Research will be funded with three fourths of a million euros
Don’t let them go quietly into the night
Kyoto University shows that Japanese bats urgently require conservation action
Simple, sensitive test helps monitor bats and protect biodiversity
Each and every biological organism has an important function in creating a healthy ecosystem, which is why conservationists everywhere encourage protecting biodiversity. However, monitoring wildlife health is an ongoing challenge. A new article in Environmental Toxicology and Chemistry explores the…
SARS-CoV-2 in wastewater solids could help monitor COVID-19 spread
Scientists have analyzed compounds in wastewater to gauge various aspects of public health, including narcotics usage, antibiotic resistance, and, more recently, the spread of SARS-CoV-2, the novel coronavirus that causes COVID-19. Now, researchers reporting in ACS’ Environmental Science & Technology…
Scientists took a rare chance to prove we can quantify biodiversity by ‘testing the water’
Recent study conducted at a UK fishery farm provides new evidence that DNA from water samples can accurately determine fish abundance and biomass
The impact of Neandertal DNA on human health
A researcher at the University of Tartu described new associations between Neandertal DNA and autoimmune diseases, prostate cancer and type 2 diabetes. Modern humans migrated out of Africa more than 60,000 years ago and met and interbred with Neandertals and…
Reproduction key to maintenance of marimo shape
A team of scientists from Hokkaido University has suggested that marimo maintain their characteristic spherical shape due to the rarity of the formation of reproductive cells. The marimo is the aggregative form of the freshwater alga Aegagropila linnaei . In…
Red Sea turtle hatchlings are feeling the heat
Analyses by KAUST researchers of sand temperatures at marine turtle nesting sites around the Red Sea indicate that turtle hatchlings born in the region could now be predominantly female. These findings hold significant implications for the survival of marine turtle…
Study proves bits of DNA in seawater correlate to the weight of netted fish
New tool will help census oceans, monitor fish, track shifting marine life; “eDNA makes the ocean a sea of biological information”
Flightless birds more common globally before human-driven extinctions
There would be at least four times as many flightless bird species on Earth today if it were not for human influences, finds a study led by UCL researchers. The study, published in Science Advances , finds that flightlessness evolved…
What’s killing killer whales?
Orca report covering a decade of necropsies identifies threats
Nature is widely adapted to current climate — making it harder to adjust to a new one
To do the right thing at the right time, organisms need to glean cues from their environment. With ongoing climate change, the timing of these cues, like the accumulation of warm days, is rapidly shifting. Now a network of researchers…