Showing 20 articles starting at article 1101

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Extinction, Environmental: Ecosystems

Return to the site home page

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Microbiology Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geochemistry
Published

Algae in Swedish lakes provide insights to how complex life on Earth developed      (via sciencedaily.com)     Original source 

By studying green algae in Swedish lakes, a research team has succeeded in identifying which environmental conditions promote multicellularity. The results give us new clues to the amazing paths of evolution.

Biology: Biochemistry Biology: Evolutionary Biology: Zoology Ecology: Extinction Environmental: Biodiversity Paleontology: General
Published

Neuroptera: Greater insect diversity in the Cretaceous period      (via sciencedaily.com)     Original source 

An LMU team has studied the biodiversity of larvae from the insect order neuroptera over the past 100 million years.

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

Arctic ice algae heavily contaminated with microplastics      (via sciencedaily.com)     Original source 

The alga Melosira arctica, which grows under Arctic sea ice, contains ten times as many microplastic particles as the surrounding seawater. This concentration at the base of the food web poses a threat to creatures that feed on the algae at the sea surface. Clumps of dead algae also transport the plastic with its pollutants particularly quickly into the deep sea -- and can thus explain the high microplastic concentrations in the sediment there.

Ecology: Extinction
Published

Cheetahs need more space: Reintroduction in India must consider their spatial ecology      (via sciencedaily.com)     Original source 

In autumn 2022 and winter 2023, a total of 20 cheetahs from Namibia and South Africa were introduced to Kuno National Park in India to establish a free-ranging population -- for the first time since their extinction in India 70 years ago. Although the idea may be commendable, getting it right is not so easy. Scientists see shortcomings in the reintroduction plan: In southern Africa, cheetahs live in a stable socio-spatial system with widely spread territories and densities of less than one individual per 100 km².

Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

The climate crisis and biodiversity crisis can't be approached as two separate things      (via sciencedaily.com)     Original source 

Anthropogenic climate change has, together with the intensive use and destruction of natural ecosystems through agriculture, fishing and industry, sparked an unprecedented loss of biodiversity that continues to worsen. In this regard, the climate crisis and biodiversity crisis are often viewed as two separate catastrophes. An international team of researchers calls for adopting a new perspective.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry
Published

Using solar farms to generate fresh desert soil crust      (via sciencedaily.com)     Original source 

Biocrusts play a crucial role in maintaining soil health and ecosystem sustainability, but they are currently under assault. Human activities including agriculture, urbanization, and off-road vehicle use can lead to the degradation of biocrusts, which have long-term consequences for these fragile environments. Climate change is also placing stress on biocrusts, which struggle to adapt to sunlight and searing heat in arid landscapes like the Sonoran Desert.

Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Greenhouse gas release from permafrost is influenced by mineral binding processes      (via sciencedaily.com)     Original source 

New insights into the binding of carbon to mineral particles in permafrost can improve the prediction of greenhouse gas release.

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

Research collaboration aims to improve nationwide water quality, restore wetlands      (via sciencedaily.com)     Original source 

The new classification system demonstrates the effects wetlands have on water quality at a continental scale -- invaluable data that can be used to better define whether wetlands are federally regulated under the U.S. Clean Water Act.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life Paleontology: Climate
Published

African penguins: Climate refugees from a distant past?      (via sciencedaily.com)     Original source 

Imagine the view from the western coastline of southern Africa during the Last Glacial Maximum (LGM) over twenty thousand years ago: in the distance you would see at least fifteen large islands -- the largest 300 square kilometers in area -- swarming with hundreds of millions of marine birds and penguin colonies.

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

Immediate carbon cuts, common marine heatwave terminology urged      (via sciencedaily.com)     Original source 

Oceanographers provide a reality check on the limitations of carbon dioxide removal and a warning­ that marine heatwaves need clear definitions so communities can adapt.

Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Companies' zero-deforestation commitments have potential to halve cattle-driven deforestation in Brazilian Amazon      (via sciencedaily.com)     Original source 

Study shows better adoption and implementation of company supply chain policies for Brazilian beef and leather could significantly reduce carbon emissions.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Scientists identify 2022 sea urchin killer      (via sciencedaily.com)     Original source 

A team of researchers has identified a single-celled organism called a ciliate as the cause of a massive die-off event to a marine animal vital to coral reef health.

Biology: Botany Biology: General Ecology: Endangered Species 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 Paleontology: Climate
Published

The diversity of present tree species is shaped by climate change in the last 21,000 years      (via sciencedaily.com)     Original source 

A new global survey of 1000 forest areas shows how climate change since the peak of the last ice age has had a major impact on the diversity and distribution of tree species we see today. The results can help us predict how ecosystems will react to future changes, thus having an impact on conservation management around the globe.

Archaeology: General Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Environmental Issues Paleontology: Climate Paleontology: Fossils
Published

Nullarbor rocks reveal Australia's transformation from lush to dust      (via sciencedaily.com)     Original source 

Researchers have discovered how long ago the Australian Nullarbor plain dried out, with a new approach shedding light on how ancient climate change altered some of the driest regions of our planet.

Biology: Biochemistry Biology: General Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Geoscience: Environmental Issues
Published

Biological invasions as costly as natural disasters      (via sciencedaily.com)     Original source 

Over the past 40 years, the financial losses caused by biological invasions have been equivalent to those caused by various types of natural disasters, such as earthquakes, floods or storms; however, according to scientists, they are now increasing at a faster pace.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science
Published

Counting the cost of sunshine: Finding a better metric to measure human ecological footprints      (via sciencedaily.com)     Original source 

The human food-energy-water system is wickedly interconnected, but most of the links in the network are neither global nor local -- the action lies in everyday trade between counties and states that rely on each other's ecosystems. To capture a better picture of human impacts in this system, you need a measurement that starts at the source -- the sun.