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Categories: Ecology: Trees, Physics: Acoustics and Ultrasound
Published Study examines feeding damage caused by spotted lanternflies on young maples
(via sciencedaily.com) Original source Short-term, heavy feeding by adult spotted lanternflies on young maple trees inhibits photosynthesis, potentially impairing the tree's growth by up to 50 percent, according to a new study.
Published Findings for invasive insect's life cycle could aid management in southeast
(via sciencedaily.com) Original source New research findings could help scientists control the emerald ash borer, an invasive pest ravaging native ash trees in North America.
Published New branch on tree of life includes 'lions of the microbial world'
(via sciencedaily.com) Original source There's a new branch on the tree of life and it's made up of predators that nibble their prey to death. These microbial predators fall into two groups, one of which researchers have dubbed 'nibblerids' because they, well, nibble chunks off their prey using tooth-like structures. The other group, nebulids, eat their prey whole. And both comprise a new ancient branch on the tree of life called 'Provora,' according to a new article.
Published In the tropics, nitrogen-fixing trees take a hit from herbivores
(via sciencedaily.com) Original source The ability of tropical forests to grow and store carbon is limited, in part, by herbivory. Insects and other animals prefer to feed on nitrogen-fixing trees, reducing the success of fixers and the nitrogen they provide. Experts now recommend accounting for herbivory constraints on nitrogen-fixing trees in climate models and projections of the tropical forest carbon sink.
Published Forest resilience linked with higher mortality risk in western US
(via sciencedaily.com) Original source A forest's resilience, or ability to absorb environmental disturbances, has long been thought to be a boost for its odds of survival against the looming threat of climate change. But a new study suggests that for some Western U.S. forests, it's quite the opposite. The results of one of the first large-scale studies of its kind show that while high ecosystem resilience correlates with low mortality in eastern forests, it is linked to high mortality in western regions.
Published Climate change in the forests of northern Germany
(via sciencedaily.com) Original source More and more trees are suffering the consequences of decades of human-made climate change. The growth of the European beech has so far suffered decline mainly in southern Europe. European beech is Germany's most important native forest tree species and it is most commonly found in Central Europe. A research team has now been able to show that the European beech is suffering from increasing drought stress in summer in northern Germany as well. This climate stress is particularly pronounced at warmer sites, when there is a higher density of these trees together, and on very sandy soils.
Published Living in greener areas is associated with better mental health and less medication use
(via sciencedaily.com) Original source A new study has evaluated the relationship between better mental health and the 3-30-300 green space rule. According to this rule of thumb, everyone should be able to see at least three trees from their home, have 30 percent tree canopy cover in their neighborhood and not live more than 300 meters away from the nearest park or green space.
Published Cheetah marking trees are hotspots for communication also for other species
(via sciencedaily.com) Original source Marking trees are important hotspots of communication for cheetahs: Here they exchange information with and about other cheetahs via scent marks, urine and scats. A team has now shown that several mammalian species on farmland in Namibia maintain a network for intra- and interspecific communication at cheetah trees. Black-backed jackals, African wildcats and warthogs visited and sniffed the cheetahs' 'places to be' more frequently than control trees, the team concluded from photos and videos recorded by wildlife camera traps. A common prey species of the cheetahs, however, avoided these hotspots.
Published An exotic interplay of electrons
(via sciencedaily.com) Water that simply will not freeze, no matter how cold it gets -- a research group has discovered a quantum state that could be described in this way. Experts have managed to cool a special material to near absolute zero temperature. They found that a central property of atoms -- their alignment -- did not 'freeze', as usual, but remained in a 'liquid' state. The new quantum material could serve as a model system to develop novel, highly sensitive quantum sensors.
Published Old-growth trees more drought tolerant than younger ones, providing a buffer against climate change
(via sciencedaily.com) Original source A new analysis of more than 20,000 trees on five continents shows that old-growth trees are more drought tolerant than younger trees in the forest canopy and may be better able to withstand future climate extremes. The findings highlight the importance of preserving the world's remaining old-growth forests, which are biodiversity strongholds that store vast amounts of planet-warming carbon, according to forest ecologists.
Published Forests benefit from tree species variety and genetic diversity
(via sciencedaily.com) Original source Reforestation projects should include a variety of tree species and ensure genetic diversity within each species to maximize new forests' health and productivity.
Published Animals are key to restoring the world's forests
(via sciencedaily.com) Original source By dispersing seeds, animals can rapidly reestablish plant diversity in degraded forests.
Published Genome studies uncover a new branch in fungal evolution
(via sciencedaily.com) Original source About 600 seemingly disparate fungi that had resisted categorization have been shown to have a common ancestor, according to a a research team that used genome sequencing to give these peculiar creatures a new classification home.
Published Old World flycatchers' family tree mapped
(via sciencedaily.com) Original source The European robin's closest relatives are found in tropical Africa. The European robin is therefore not closely related to the Japanese robin, despite their close similarity in appearance. This is confirmed by a new study of the Old World flycatcher family, to which these birds belong. The study comprises 92 per cent of the more than 300 species in this family.
Published What shapes the composition of microbes in a warbler's gut?
(via sciencedaily.com) Original source Differences among the collection of bacteria and other microorganisms that live within birds' digestive tracts -- their gut microbiomes -- are not primarily driven by diet diversity, contrary to a recently proposed hypothesis. Instead, a team of researchers found that evolution may play a larger role in explaining these differences, which could potentially have implications for how these species adapt to new habitats.
Published Planting trees can save lives, study shows
(via sciencedaily.com) Original source A 30-year tree planting campaign in Portland, Oregon, allowed researchers to show that the number of trees planted in the street is associated with reductions in mortality, and that the association grows stronger as the trees age and grow.
Published Wireless earphones as inexpensive hearing aids
(via sciencedaily.com) Some commercial earbuds can perform as well as hearing aids. The result could help a large proportion of people with hearing loss access more affordable sound amplification devices.
Published Half of replanted tropical trees don't survive
(via sciencedaily.com) Original source On average, about half of trees planted in tropical and sub-tropical forest restoration efforts do not survive more than five years, but there is enormous variation in outcomes, new research has found.
Published Evolution of tree roots may have driven mass extinctions
(via sciencedaily.com) Original source A study has found evidence that the evolution of tree roots over 300 million years ago triggered mass extinction events through the same chemical processes created by pollution in modern oceans and lakes.
Published Want to fire up the dance floor? Play low-frequency bass
(via sciencedaily.com) To find out how different aspects of music influence the body, researchers turned a live electronic music concert into a lab study. By introducing levels of bass over speakers that were too low to hear and monitoring the crowd's movements, scientists found that people danced 11.8 percent more when the very low frequency bass was present.