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Categories: Ecology: Endangered Species, Ecology: Extinction

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Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Is the Amazon forest approaching a tipping point?      (via sciencedaily.com)     Original source 

Global warming may be interacting with regional rainfall and deforestation to accelerate forest loss in the Amazon, pushing it towards partial or total collapse. New research has identified the potential thresholds of these stressors, showing where their combined effects could produce a 'tipping point' -- in which the forest is so fragile that just a small disturbance could cause an abrupt shift in the state of the ecosystem.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Ecology: Endangered Species Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues
Published

Controlling root growth direction could help save crops and mitigate climate change      (via sciencedaily.com)     Original source 

Scientists have determined how the well-known plant hormone ethylene is crucial in controlling the angle at which roots grow. The findings can be used to engineer plants and crops that withstand the environmental stresses of climate change and drought, and perhaps to create plants that remove carbon dioxide from the atmosphere and store it deep underground to help mitigate climate change.

Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature
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Australia's most at-risk bird species share some common traits      (via sciencedaily.com)     Original source 

Australian birds that live on islands are among the species most at risk of extinction, a first-of-its-kind study has shown. Australia has over 750 native bird species. But many of them are facing an uncertain future.

Biology: Marine Biology: Microbiology Ecology: Extinction Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry
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Compounds released by bleaching reefs promote bacteria, potentially stressing coral further      (via sciencedaily.com)     Original source 

New research revealed that when coral bleaching occurs, corals release unique organic compounds into the surrounding water that not only promote bacterial growth overall, but select for opportunistic bacteria that may further stress reefs.

Biology: Botany Biology: Microbiology Ecology: Endangered Species Geoscience: Geochemistry
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Researchers uncover a key link in legume plant-bacteria symbiosis      (via sciencedaily.com)     Original source 

Researchers have unveiled a groundbreaking discovery shedding light on the intricate play between legume plants and nitrogen-fixing bacteria. Their study details the crucial role played by phosphorylation in driving the formation of symbiotic organs, known as nodules, on plant roots. The long-term goal is to enable symbiosis in root nodules in important crops such as barley, maize and rice to avoid the use of chemical fertilizers.

Biology: General Ecology: Endangered Species Ecology: Extinction Ecology: Nature Offbeat: General Offbeat: Plants and Animals
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Five dazzling new species of eyelash vipers discovered in Colombia and Ecuador      (via sciencedaily.com)     Original source 

Scientists have discovered five dazzling new species of eyelash vipers in the jungles and cloud forests of Colombia and Ecuador.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Sea Life Offbeat: General Offbeat: Plants and Animals
Published

Surprising behavior in one of the least studied mammals in the world      (via sciencedaily.com)     Original source 

Beaked whales are among the least studied mammals in the world. Now, a new study reveals surprising information about the Baird's beaked whale species.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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How plants obtain nitrogen by supplying iron to symbiotic bacteria      (via sciencedaily.com)     Original source 

Researchers have discovered peptide factors that function in the shoot and root systems to transport iron into the root nodules colonized by nitrogen-fixing bacteria. Moreover, these peptide factors regulate nitrogen homeostasis by maintaining a balance between nitrogen and iron concentrations in plants without rhizobial symbiosis.

Biology: Botany Biology: Microbiology Ecology: Endangered Species
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Two new freshwater fungi species in China enhance biodiversity knowledge      (via sciencedaily.com)     Original source 

Researchers have discovered two new freshwater hyphomycete (mould) species, Acrogenospora alangii and Conioscypha yunnanensis, in southwestern China. The discovery marks the addition of these species to the Acrogenospora and Conioscypha genera, further enriching the diversity of freshwater fungi known in the region.

Biology: Botany Biology: General Biology: Zoology Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Scammed! Animals 'led by the nose' to leave plants alone      (via sciencedaily.com)     Original source 

Fake news works for wallabies and elephants. Herbivores can cause substantial damage to crops or endangered or protected plants, with traditional methods to deter foraging lethal, expensive or ineffective. Biologists are now using aromas from plants naturally repellent with remarkable success to deter the animals.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Ecology: Trees Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
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Rare 3D fossils show that some early trees had forms unlike any you've ever seen      (via sciencedaily.com)     Original source 

In the fossil record, trees typically are preserved with only their trunks. They don't usually include any leaves to show what their canopies and overall forms may have looked like. In a new study, researchers describe fossilized trees from New Brunswick, Canada with a surprising and unique three-dimensional crown shape.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Ecology: Endangered Species
Published

Plant receptors that control immunity and development share a common origin      (via sciencedaily.com)     Original source 

Researchers have traced the origin and evolutionary trajectory of plant immune receptors. Their discovery will make it easier to identify immune receptor genes from genomic information and could help in the development of pathogen-resistant crops.

Biology: General Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues
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Climate change threatens older elephants most, jeopardizing African elephants' future      (via sciencedaily.com)     Original source 

A collaborative team of researchers has conducted first-of-its kind research into how global climate change affects African elephants. The work shows that older elephants will have markedly decreased chances of survival, which will not only drastically reduce the species' overall ability to weather the changing climate but will send ripple effects throughout the surrounding landscape. The team has also modeled possible mitigation scenarios.

Biology: Botany Biology: Microbiology Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues
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'Tiny tornadoes' around leaves spread deadly plant pathogens      (via sciencedaily.com)     Original source 

A new study has analyzed plant spore dispersion at its source, where rain droplets shake flexible leaves to initially disperse pathogens.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: Sea Life
Published

Floating algae a raft for juvenile pelagic fish      (via sciencedaily.com)     Original source 

Floating macroalgal acts as a raft that provides habitat for a diverse array of juvenile oceanic fish a new study has found. The study conducted in the Ningaloo Coast World Heritage Area, Western Australia, revealed that fish were more abundant around macroalgal rafts than in open water, with eleven species of juvenile fishes associated with Sargassum rafts, and one species of both juveniles and adults.

Biology: Biochemistry Biology: General Biology: Microbiology Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
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Fungal-rich soil may improve green roofs      (via sciencedaily.com)     Original source 

Green roofs have become increasingly popular thanks to their benefits related to climate adaptation, mitigation, and urban biodiversity management. But, in the U.S., green roofs are typically planted with non-native plants in sterile soils, and their effectiveness declines over time. A new study finds that managing green roof soil microbes boosts healthy urban soil development, which is a methodology that could be applied to support climate resilience in cities.

Biology: Botany Computer Science: General Ecology: Endangered Species
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AI-powered app can detect poison ivy      (via sciencedaily.com)     Original source 

To find poison ivy before it finds you, scientists have published a new study in which they show how they used artificial intelligence to confirm that an app can identify poison ivy. The app is not yet commercially available, nor is there a timetable for it to be available.