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Categories: Ecology: Extinction, Geoscience: Geography

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Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature
Published

Three-year population study supports fight to save Cameroon's Kordofan giraffe      (via sciencedaily.com)     Original source 

Crucial new data about the numbers of Critically Endangered Kordofan giraffe living within Cameroon's B nou National Park has been released, supporting conservation efforts to save the subspecies from extinction.

Biology: Biochemistry Biology: Zoology Ecology: Animals Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Gulls swap natural for urban habitats, machine-learning study finds      (via sciencedaily.com)     Original source 

The study is the first of its kind to compile a three-year dataset using a citizen science-based, opportunistic research method to include a large sample of gulls and other sub-Arctic birds in urban Alaska. The study provides a current snapshot of the habitat shift to an urban landscape.

Biology: General Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

A new perspective on the temperature inside tropical forests      (via sciencedaily.com)     Original source 

New worldwide maps of temperatures inside tropical forests show that global warming affect different way in different parts of the forests. Undergrowth level temperature of the tropical forests can be even 4 degrees less than average temperature of the area.

Biology: Biochemistry Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology
Published

Planetary Commons: Fostering global cooperation to safeguard critical Earth system functions      (via sciencedaily.com)     Original source 

Tipping elements of the Earth system should be considered global commons, researchers argue. Global commons cannot -- as they currently do -- only include the parts of the planet outside of national borders, like the high seas or Antarctica. They must also include all the environmental systems that regulate the functioning and state of the planet, namely all systems on Earth we all depend on, irrespective on where in the world we live. This calls for a new level of transnational cooperation, leading experts in legal, social and Earth system sciences say. To limit risks for human societies and secure critical Earth system functions they propose a new framework of planetary commons to guide governance of the planet.

Biology: Biochemistry Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geography
Published

Wolves and elk are (mostly) welcome back in Poland and Germany's Oder Delta region, survey shows      (via sciencedaily.com)     Original source 

An online survey conducted in Germany and Poland shows that large parts of the participants support the return of large carnivores and herbivores, such as wolves and elk, to the Oder Delta region. Presented with different rewilding scenarios, the majority of survey participants showed a preference for land management that leads to the comeback of nature to the most natural state possible. Locals, on the other hand, showed some reservations.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
Published

Ice age could help predict oceans' response to global warming      (via sciencedaily.com)     Original source 

A new way to measure the ocean oxygen level and its connections with carbon dioxide in the Earth's atmosphere during the last ice age could help explain the role oceans played in past glacial melting cycles and improve predictions of how ocean carbon cycles will respond to global warming.

Biology: Marine Ecology: Extinction Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

The megalodon was less mega than previously believed      (via sciencedaily.com)     Original source 

A new study shows the Megalodon, a gigantic shark that went extinct 3.6 million years ago, was more slender than earlier studies suggested. This finding changes scientists' understanding of Megalodon behavior, ancient ocean life, and why the sharks went extinct.

Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Geography Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Sea otters helped prevent widespread California kelp forest declines over the past century      (via sciencedaily.com)     Original source 

The study reveals dramatic regional kelp canopy changes along the California coast over a 100-year period. During this time there was a significant increase in kelp forest canopy along the central coast, the only region of California where southern sea otters survived after being hunted nearly to extinction for their fur in the 1800s. Contrastingly, kelp canopy decreased in northern and southern regions. At the century scale, the species' favorable impact on kelp forests along the central coast nearly compensated for the kelp losses along both northern and southern California resulting in only a slight overall decline statewide during this period.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: General
Published

Scientists, farmers and managers work together to avoid the decline of the little bustard, an endangered steppe bird      (via sciencedaily.com)     Original source 

The collaboration between scientists, farmers and managers is crucial to improve the protection of the little bustard, an endangered steppe-land bird in Spain due to human activity. The reduction of natural habitats, the increase in irrigation and the urbanization of the land have led to having less surface areas that guarantee the survival of this vulnerable species.

Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography
Published

Researchers pump brakes on 'blue acceleration' harming the world ocean      (via sciencedaily.com)     Original source 

Protecting the world ocean against accelerating damage from human activities could be cheaper and take up less space than previously thought, new research has found.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Mathematics: Modeling
Published

New AI makes better permafrost maps      (via sciencedaily.com)     Original source 

New insights from artificial intelligence about permafrost coverage in the Arctic may soon give policy makers and land managers the high-resolution view they need to predict climate-change-driven threats to infrastructure such as oil pipelines, roads and national security facilities.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Chasing the light: Study finds new clues about warming in the Arctic      (via sciencedaily.com)     Original source 

The Arctic, Earth's icy crown, is experiencing a climate crisis like no other. It's heating up at a furious pace -- four times faster than the rest of our planet. Researchers are pulling back the curtain on the reduction of sunlight reflectivity, or albedo, which is supercharging the Arctic's warming.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

NASA analysis confirms 2023 as warmest year on record      (via sciencedaily.com)     Original source 

Earth's average surface temperature in 2023 was the warmest on record, according to an analysis by NASA. Global temperatures last year were around 2.1 degrees Fahrenheit (1.2 degrees Celsius) above the average for NASA's baseline period (1951-1980), scientists from NASA's Goddard Institute for Space Studies (GISS) in New York reported.

Environmental: Biodiversity Environmental: Ecosystems Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

Beaches and dunes globally squeezed by roads and buildings      (via sciencedaily.com)     Original source 

Beaches and dunes globally squeezed by roads and buildings. Beaches and dunes are becoming increasingly trapped between rising sea levels and infrastructure. Researchers found that today, when dropped on a random beach anywhere in the world, you only need to walk 390 meters (on average) to find the nearest road or building. And while that short walking distance may seem convenient if you want a day at the beach, it's bad news for our protection against rising sea levels, drinking water supplies and biodiversity.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Thermal vision shows endangered numbats feel the heat of warming climate      (via sciencedaily.com)     Original source 

Research using thermal imaging of numbats in Western Australia has found that during hot weather the endangered animals are limited to as little as ten minutes of activity in the sun before they overheat to a body temperature of greater than 40 C.

Anthropology: General Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Paleontology: Climate
Published

The first assessment of toxic heavy metal pollution in the Southern Hemisphere over the last 2,000 years      (via sciencedaily.com)     Original source 

Human activity, from burning fossil fuels and fireplaces to the contaminated dust produced by mining, alters Earth's atmosphere in countless ways. Records of these impacts over time are preserved in everlasting polar ice that serves as a sort of time capsule, allowing scientists and historians to link Earth's history with that of human societies. In a new study, ice cores from Antartica show that lead and other toxic heavy metals linked to mining activities polluted the Southern Hemisphere as early as the 13th century.

Ecology: Extinction Ecology: Sea Life
Published

A global study reveals pathways to save threatened sharks, despite rising mortality trends      (via sciencedaily.com)     Original source 

Sharks have persisted as powerful ocean predators for more than 400 million years. They survived five mass extinctions, diversifying into an amazing variety of forms and lifestyles. But this ancient lineage is now among the world's most threatened species groups due to overexploitation in poorly regulated fisheries and the proliferation of wasteful finning practices.