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Categories: Ecology: Trees, Paleontology: Dinosaurs

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Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: General
Published

Oldest spinosaur brains revealed      (via sciencedaily.com) 

Researchers have reconstructed the brains and inner ears of two British spinosaurs, helping uncover how these large predatory dinosaurs interacted with their environment.

Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Geoscience: Severe Weather
Published

Endangered Bahamas bird may be lost from island following hurricane      (via sciencedaily.com) 

The endangered Bahama Warbler may be surviving on just one island following Hurricane Dorian's devastation in 2019, according to researchers. A new study shows the bird's distribution and ecology on Grand Bahama before the hurricane struck. But the team says that the warbler may now only survive on neighboring Abaco island, after hurricane Dorian destroyed the bird's forest habitat on Grand Bahama. The research comes from the same team that found what is thought to have been the last living Bahama Nuthatch, previously thought to have been extinct.

Archaeology: General Ecology: Trees Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Severe Weather
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New research suggests drought accelerated empire collapse      (via sciencedaily.com)     Original source 

The collapse of the Hittite Empire in the Late Bronze Age has been blamed on various factors, from war with other territories to internal strife. Now, scientists have used tree ring and isotope records to pinpoint a more likely culprit: three straight years of severe drought.

Biology: Botany Ecology: Endangered Species Ecology: General Ecology: Invasive Species Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems
Published

Long-term restoration of a biodiversity hotspot hinges on getting seeds to the right place at the right time      (via sciencedaily.com) 

New research shows that degraded savanna ecosystems can reap lasting benefits from a single seeding of native understory plants. Once a diverse understory of savanna plants became established, its long-term persistence was relatively unaffected by environmental factors -- with one exception. Higher temperatures during the height of the growing season were associated with poorer long-term survival among some species, indicating one threat posed by a warming climate.

Biology: Botany Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Severe Weather
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Pacific Northwest heat dome tree damage more about temperature than drought, scientists say      (via sciencedaily.com)     Original source 

Widespread tree scorch in the Pacific Northwest that became visible shortly after multiple days of record-setting, triple-digit temperatures in June 2021 was more attributable to heat than to drought conditions, researchers say.

Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Research Ecology: Trees Offbeat: Plants and Animals
Published

Voiceless frog discovered in Tanzania      (via sciencedaily.com)     Original source 

Researchers discovered a new species of frog in Africa that has an unusual trait: it's completely silent. The Ukaguru spiny-throated reed frog does not croak, sing or ribbit. Found in Tanzania's Ukaguru Mountains for which it is named, Hyperolius ukaguruensis is among the few frogs around the world that do not vocalize to other frogs.

Biology: Botany Ecology: Trees Environmental: Ecosystems
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Forest trees find a new watery 'sweet spot' when CO2 is high      (via sciencedaily.com)     Original source 

Trees living in conditions where the carbon dioxide (CO2) has been artificially elevated are likely to become more efficient in conserving water.

Biology: Botany Ecology: Invasive Species Ecology: Trees Environmental: Ecosystems
Published

Climate change may cut US forest inventory by a fifth this century      (via sciencedaily.com)     Original source 

A study found that under more severe climate warming scenarios, the inventory of trees used for timber in the continental United States could decline by as much as 23% by 2100. The largest inventory losses would occur in two of the leading timber regions in the U.S., which are both in the South.

Biology: Botany Ecology: Trees Geoscience: Environmental Issues
Published

Over 4% of summer mortality in European cities is attributable to urban heat islands      (via sciencedaily.com)     Original source 

Over four percent of deaths in cities during the summer months are due to urban heat islands, and one third of these deaths could be prevented by reaching a tree cover of 30%, according to a modelling study. The study results, obtained with data from 93 European cities, highlight the substantial benefits of planting more trees in cities to attenuate the impact of climate change.

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

Deer browsing is just one of many factors shaping North American forests      (via sciencedaily.com) 

In a new study, a research team discovered evidence that browsing by white-tailed deer had relatively little long-term impact on two tree species in a northern forest.

Ecology: Extinction Ecology: General Ecology: Research Ecology: Trees Environmental: Ecosystems
Published

Forests face fierce threats from multiple industries, not just agricultural expansion      (via sciencedaily.com) 

Intact forests are important climate regulators and harbors of biodiversity, but they are rapidly disappearing. Agriculture is commonly considered to be the major culprit behind forest loss, but the authors of a new article show that agriculture isn't solely to blame. For forest loss associated with the 2014 world economy, over 60% was related to final consumption of non-agricultural products, such as minerals, metals and wood-related goods, and the authors argue that we must consider international trade markets when designing conservation strategies.

Ecology: Endangered Species Ecology: Extinction Ecology: Trees Environmental: Ecosystems
Published

Collision risk and habitat loss: Wind turbines in forests impair threatened bat species      (via sciencedaily.com) 

In order to meet climate protection goals, renewable energies are booming -- often wind power. More than 30,000 turbines have already been installed on the German mainland so far, and the industry is currently scrambling to locate increasingly rare suitable sites. Thus, forests are coming into focus as potential sites. A scientific team has now demonstrated that wind turbines in forests impair endangered bat species: Common noctules (Nyctalus noctula), a species with a high risk of colliding with rotor blades, are attracted to forest wind turbines if these are located near their roosts. Far from roosts, common noctules avoid the turbines, essentially resulting in a loss of foraging space and thus habitat for this species.

Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: Early Mammals and Birds Paleontology: General
Published

Researchers uncover 92 fossil nests belonging to some of India's largest dinosaurs      (via sciencedaily.com) 

The discovery of more than 250 fossilized eggs reveals intimate details about the lives of titanosaurs in the Indian subcontinent, according to a new study.

Ecology: Trees Environmental: Ecosystems
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Special drone collects environmental DNA from trees      (via sciencedaily.com)     Original source 

Researchers have developed a flying device that can land on tree branches to take samples. This opens up a new dimension for scientists previously reserved for for biodiversity researchers.

Ecology: Trees Environmental: Ecosystems
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Our future climate depends partly on soil microbes -- but how are they affected by climate change?      (via sciencedaily.com)     Original source 

The largest terrestrial carbon sink on Earth is the planet's soil. One of the big fears is that a warming planet will liberate significant portions of the soil's carbon, turning it into carbon dioxide (CO2) gas, and so further accelerate the pace of planetary warming. A key player in this story is the microbe, the predominant form of life on Earth, and which can either turn organic carbon -- the fallen leaves, rotting tree stumps, dead roots and other organic matter -- into soil, or release it into the atmosphere as CO2. Now, an international team of researchers has helped to untangle one of the knottiest questions involving soil microbes and climate change: what effect does a warming planet have on the microbes' carbon cycling?

Ecology: Invasive Species Ecology: Trees
Published

Climate change presents a mismatch for songbirds' breeding season      (via sciencedaily.com)     Original source 

Climate change presents a mismatch for some breeding songbirds, finds a new study using a decade of nestbox data.

Ecology: Extinction Offbeat: Paleontology and Archeology Paleontology: Dinosaurs Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

Fossils reveal dinosaurs of prehistoric Patagonia      (via sciencedaily.com)     Original source 

A study is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct. The fossils represent the first record of theropods -- a dinosaur group that includes both modern birds and their closest non-avian dinosaur relatives -- from the Chilean portion of Patagonia. The researchers' finds include giant megaraptors with large sickle-like claws and birds similar to todays ducks and geese.

Ecology: Invasive Species Ecology: Trees Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Landscaping for drought: We're doing it wrong      (via sciencedaily.com)     Original source 

Despite recent, torrential rains, most of Southern California remains in a drought. Accordingly, many residents plant trees prized for drought tolerance, but a new study shows that these trees lose this tolerance once they're watered.

Ecology: Trees Environmental: Ecosystems
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Forests recovering from logging act as a source of carbon      (via sciencedaily.com)     Original source 

Tropical forests recovering from logging are sources of carbon for years afterwards, contrary to previous assumptions, finds a new study.

Ecology: Trees Environmental: Ecosystems
Published

New York City's greenery absorbs a surprising amount of its carbon emissions      (via sciencedaily.com)     Original source 

A study of vegetation across New York City and some densely populated adjoining areas has found that on many summer days, photosynthesis by trees and grasses absorbs all the carbon emissions produced by cars, trucks and buses, and then some. The surprising result, based on new hyper-local vegetation maps, points to the underappreciated importance of urban greenery in the carbon cycle.