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Don't focus on genetic diversity to save our species

New research suggests that genetic diversity is not a reliable predictor of species survival and highlights the importance of habitat protection in saving species. Scientists found that most genetic diversity within a genome is neutral and not correlated with overall genetic diversity.

SourceUniversity of Adelaide·JournalProceedings of the National Academy of Sciences·DateFeb 22, 2021

All in the head? Brains adapt to support new species

Researchers found substantial differences in brain morphology between forest edge and deep forest butterfly species, with the latter investing more in visual information processing. The study suggests that changes in brain structure play a crucial role in speciation across environments.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateFeb 8, 2021

Evolutionary history of turtles

Researchers analyzed DNA from 591 turtles to uncover factors shaping their diversity, finding species diversified in response to historical climate shifts. The study suggests that habitats exposed along continental margins were critical for turtle speciation and remain key to their persistence.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateFeb 8, 2021

Hidden world just below the surface

Surface slicks off West Hawai'i harbor an astounding array of marine life, including over 112 species of commercially and ecologically important fishes. These 'bioslicks' form an interconnected superhighway of nursery habitat, attracting tons of young fishes with dense concentrations of food and shelter.

SourceUniversity of Hawaii at Manoa·JournalScientific Reports·DateFeb 4, 2021

Eyes reveal life history of fish

Scientists have created a technique using stable isotopic analysis of eye lenses to reveal a fish's life history and diet. The study found that fish on floodplains grew faster and had different dietary signatures than those in rivers or hatcheries, providing valuable insights for managing habitats and conservation efforts.

SourceUniversity of California - Davis·JournalMethods in Ecology and Evolution·DateJan 28, 2021

Rediscovery of the 'extinct' Pinatubo volcano mouse

A team of researchers rediscovered a species of mouse thought to be extinct after Mount Pinatubo's devastating eruption 30 years ago. The survey revealed that native rodents were abundant and thriving in the disturbed landscape, contradicting expectations.

SourceField Museum·JournalThe Philippine journal of science·DateJan 22, 2021

Indigenous lands: A haven for wildlife

A comprehensive analysis of land mammal composition across mapped Indigenous lands reveals that 2,175 mammal species have at least 10% of their ranges within these lands. The study highlights the importance of Indigenous peoples' lands for biodiversity and ecosystem services, with 413 threatened species occurring in these areas.

SourceUniversity of Queensland·JournalConservation Biology·DateJan 20, 2021

New challenges for wolf conservation

The growing wolf population in Germany threatens legally binding nature conservation goals due to increased attacks on livestock. The researchers propose simplifying regulatory measures, actively managing the wolf population, and providing financial support for farmers to implement conservation efforts.

SourceUniversity of Freiburg·JournalNaturschutz und Landschaftsplanung (NuL)·DateJan 7, 2021

Study finds growing numbers of critically endangered sawfish in Miami waters

A new study has documented a significant increase in sightings of critically endangered smalltooth sawfish in coastal waters off Miami. The research highlights the need to better understand the effects of coastal urbanization on these endangered species and inform conservation efforts.

America's crop cousins are numerous, imperiled, and more needed than ever

A new study highlights the plight of US crop wild relatives, many of which are endangered or underrepresented in conservation repositories. The plants, including those related to apples, hops, and sunflowers, have characteristics that can be used to breed hardier crops.