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Categories: Biology: Marine, Environmental: Biodiversity

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Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems
Published

Pause in recent coral recovery on much of Great Barrier Reef      (via sciencedaily.com) 

In-water monitoring shows hard coral cover across the Great Barrier Reef remains at similar levels to that recorded in 2022, with small decreases in the Northern, Central and Southern regions. AIMS' Annual Summary Report on Coral Reef Condition for 2022/23 found that while some reefs continued to recover, their increased hard coral cover was offset by coral loss on other reefs. Most reefs underwent little change in coral cover.

Ecology: General Ecology: Invasive Species Ecology: Research Environmental: Biodiversity Environmental: Ecosystems
Published

City-dwelling wildlife demonstrate 'urban trait syndrome'      (via sciencedaily.com) 

City life favors species that are adaptable and not too fussy about what they eat, among other characteristics. A worldwide consortium of scientists calls the resulting collection of traits an 'Urban Trait Syndrome.'

Ecology: Extinction Ecology: Invasive Species Environmental: Biodiversity
Published

Managing domestic and wildcats is likely to remain fraught, new research warns      (via sciencedaily.com)     Original source 

Current efforts to protect and restore native biodiversity is being threatened by difficulties in identifying wild and domestic cats, and categorization is likely to remain fraught for the foreseeable future, experts have warned.

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

Whale-like filter-feeding discovered in prehistoric marine reptile      (via sciencedaily.com)     Original source 

A remarkable new fossil from China reveals for the first time that a group of reptiles were already using whale-like filter feeding 250 million years ago.

Environmental: Biodiversity Geoscience: Environmental Issues Geoscience: Oceanography Geoscience: Severe Weather
Published

New Antarctic extremes 'virtually certain' as world warms      (via sciencedaily.com)     Original source 

Extreme events in Antarctica such as ocean heatwaves and ice loss will almost certainly become more common and more severe, researchers say.

Ecology: General Ecology: Research Environmental: Biodiversity
Published

Bat activity lower at solar farm sites      (via sciencedaily.com) 

The activity level of six bat species was significantly reduced at solar farm sites, researchers have observed.

Biology: Marine Ecology: Extinction
Published

The trilobites' guide to surviving environmental change      (via sciencedaily.com)     Original source 

Scientists have worked out how one unusual species of trilobite -- an ancient, sea-dwelling relative of spiders and lobsters -- was able to defend itself against predators and survive a bumpy ride as Earth's oxygen levels fluctuated.

Ecology: General Ecology: Invasive Species Ecology: Research Environmental: Biodiversity
Published

Study reveals successful strategies for removing invasive caimans from Florida Everglades      (via sciencedaily.com) 

A new study reveals how a succession of strategies can take control of an invasive species population.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography
Published

Nitrogen fixation hotspots in Atlantic seaweed      (via sciencedaily.com)     Original source 

A new study examined nitrogen fixation among diazotrophs--microorganisms that can convert nitrogen into usable form for other plants and animals -- living among sargassum. Sargassum, a brown macroalgae in the seaweed family, floats on the surface of the open ocean and provides habitat for a colorful array of marine life such as small fish, brine shrimp and other microorganisms. Previous studies have overlooked diazotrophs associated with sargassum, which could mean a historical underestimation of nitrogen fixation in the Atlantic nitrogen budget. The study found that nitrogen fixation in sargassum communities was significant.

Ecology: Endangered Species Ecology: Extinction Environmental: Biodiversity
Published

Kordofan giraffes face local extinction if poaching continues      (via sciencedaily.com)     Original source 

Poaching of two Critically Endangered Kordofan giraffes per year could result in extinction in just 15 years within Cameroon's Bénoué National Park without intervention.

Ecology: Extinction Ecology: Invasive Species Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems
Published

Tropical trees use social distancing to maintain biodiversity      (via sciencedaily.com)     Original source 

Tropical forests can harbor hundreds of species of trees in one square mile. Researchers reveal key factors in the spatial distribution of adult trees.

Ecology: General Ecology: Invasive Species Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: Wildfires
Published

Scientists dig into wildfire predictions, long-term impacts      (via sciencedaily.com)     Original source 

Wildfires are an ancient force shaping the environment, but they have grown in frequency, range and intensity in response to a changing climate. Scientists are working on several fronts to better understand and predict these events and what they mean for the carbon cycle and biodiversity.

Biology: Marine Ecology: Sea Life Geoscience: Oceanography
Published

Sea urchins are struggling to 'get a grip' as climate change alters ecosystems      (via sciencedaily.com)     Original source 

As global climate change causes weather extremes ranging from heat waves and droughts to heavy rains and flooding, the large amounts of freshwater pouring into nearshore ecosystems are altering habitats. A team of biologists studied the impacts of low salinity and how it alters sea urchins' ability to grip and move within their habitat.

Biology: Marine Ecology: Sea Life Geoscience: Geology Geoscience: Oceanography Paleontology: Climate
Published

Nature's kitchen: how a chemical reaction used by cooks helped create life on Earth      (via sciencedaily.com)     Original source 

A chemical process used in the browning of food to give it its distinct smell and taste is probably happening deep in the oceans, where it helped create the conditions necessary for life. Known as the Maillard reaction after the French scientist who discovered it, the process converts small molecules of organic carbon into bigger molecules known as polymers. In the kitchen, it is used to create flavors and aromas out of sugars. But a research team argues that on the sea floor, the process has had a more fundamental effect, where it has helped to raise oxygen and reduce carbon dioxide levels in the atmosphere, to create the conditions for complex life forms to emerge and thrive on Earth.

Biology: Marine Ecology: General Ecology: Research Ecology: Sea Life Geoscience: Oceanography
Published

Study analyzes nearshore California marine heatwaves and cold spells amid changing climate conditions      (via sciencedaily.com)     Original source 

Human-caused climate change has also caused extreme ocean temperatures and conditions with detrimental impacts on marine ecosystems and ocean-related ecology.  A new study explores ocean temperature data along California's Coast, finding that certain environmental conditions and the state of the ocean led to an enhanced risk for marine heatwaves and cold spells, conditions that scientists and environmental managers will need to monitor to preserve and protect vital ecosystems critical to the California ocean economy, known as the Blue Economy.

Biology: Evolutionary Biology: Marine Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Oldest known species of swimming jellyfish identified      (via sciencedaily.com)     Original source 

Royal Ontario Museum announces the oldest swimming jellyfish in the fossil record with the newly named Burgessomedusa phasmiformis. This 505-million-year-old swimming jellyfish from the Burgess Shale highlights diversity in the Cambrian ecosystem.

Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Sea Life Geoscience: Oceanography Geoscience: Severe Weather
Published

Sea level rise shifts habitat for endangered Florida Keys species      (via sciencedaily.com)     Original source 

A newly published study describes the response to sea level rise by the silver rice rat, an endangered species only found in the Florida Keys.

Biology: Marine Ecology: Sea Life
Published

DNA decodes the dining preferences of the shell-shucking whitespotted eagle ray      (via sciencedaily.com)     Original source 

With mighty jaws and plate-like teeth, the globally endangered whitespotted eagle ray can pretty much crunch on anything. Yet, little information is available on critical components of their life history in the U.S., such as their diet. A study is the first use DNA barcoding to uncover the finer-scale feeding patterns of this protected species in Florida. The surprising results have important implications for both shellfish enhancement activities and species management.

Ecology: Invasive Species Environmental: Biodiversity
Published

Nuisance vegetation removal in Senegalese waterways reduces the overall prevalence of parasitic infections and increases local food production      (via sciencedaily.com)     Original source 

It's an elegant solution: Remove the habitat of a parasite-carrying aquatic snail and reduce the level of infection in the local community; all while generating more feed and compost for local farmers.

Biology: Evolutionary Biology: Marine Ecology: General Ecology: Research Ecology: Sea Life
Published

Researchers find evolutionary adaption in trout of Wyoming's Wind River Mountains      (via sciencedaily.com)     Original source 

Scientists found that trout from lakes stocked decades ago in the Wind River Mountains have higher numbers of gill rakers, which are bony or cartilage structures in the gullets of fish that act as sieves to retain zooplankton and nourish the trout. The difference is likely a result of the trout adapting to the food sources of the once-fishless high-mountain lakes -- a change that has taken place in a relatively short period of time and at a rate that is generally consistent with the historic timing of stocking for each of the lakes.