//www.koonmotors.com/news/plants_animals/trees/ Read all about trees, including the latest research on many tree species, insect infestations, and the role of trees in ecology. Full articles, photos, free. en-us Sat, 09 Sep 2023 14:23:40 EDT Sat, 09 Sep 2023 14:23:40 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/plants_animals/trees/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/09/230907105857.htm New research shows that, in addition to trees, humble grasses also play an essential role in capturing carbon. Thu, 07 Sep 2023 10:58:57 EDT //www.koonmotors.com/releases/2023/09/230907105857.htm //www.koonmotors.com/releases/2023/09/230906122108.htm As the climate and wildfire crises have intensified, so too have concerns regarding the loss of carbon captured and stored in forests from decades to centuries of tree growth. A new study describes where to optimize ongoing wildfire mitigation efforts and reduce carbon loss due to wildfire, benefitting communities and climate at the same time. The study evaluated where living trees and the carbon they store are at risk of burning in the future. They then compared these areas to communities that are vulnerable to wildfire as identified in the Forest Service's Wildfire Crisis Strategy. Areas of overlap highlight 'opportunity hot spots' where action can reduce the risk from wildfire to both carbon and communities. Wed, 06 Sep 2023 12:21:08 EDT //www.koonmotors.com/releases/2023/09/230906122108.htm //www.koonmotors.com/releases/2023/09/230905125016.htm By adding a naturally-occurring polymer that makes wood more porous, scientists have engineered trees easier to disassemble into simpler building blocks. Tue, 05 Sep 2023 12:50:16 EDT //www.koonmotors.com/releases/2023/09/230905125016.htm //www.koonmotors.com/releases/2023/09/230904133132.htm Tropical forests in South America lose their ability to absorb carbon from the atmosphere when conditions become exceptionally hot and dry, according to new research. For a long time, tropical forests have acted as a carbon sink, taking more carbon out of the air than they release into it, a process that has moderated the impact of climate change. But new research found that in 2015 -- 2016, when an El Niño climate event resulted in drought and the hottest temperatures ever recorded, South American forests were unable to function as a carbon sink. Mon, 04 Sep 2023 13:31:32 EDT //www.koonmotors.com/releases/2023/09/230904133132.htm //www.koonmotors.com/releases/2023/09/230901181711.htm In 2012, when the spotted lanternfly (Lycorma delicatula) arrived in the U.S. from its home in China, scientists, land managers, and growers were understandably concerned that the sap-feeding insect would damage native and commercial trees. New long-term research has discovered that hardwood trees, such as maple, willow and birch, may be less vulnerable than initially thought. Fri, 01 Sep 2023 18:17:11 EDT //www.koonmotors.com/releases/2023/09/230901181711.htm //www.koonmotors.com/releases/2023/08/230830131925.htm New work could help forest managers predict which forests are most at risk from drought and which will survive. Wed, 30 Aug 2023 13:19:25 EDT //www.koonmotors.com/releases/2023/08/230830131925.htm //www.koonmotors.com/releases/2023/08/230829141714.htm A new article found that overhunting of gorillas, elephants, and other large fruit-eating seed-dispersers make tropical forests less able to store or sequester carbon. Tue, 29 Aug 2023 14:17:14 EDT //www.koonmotors.com/releases/2023/08/230829141714.htm //www.koonmotors.com/releases/2023/08/230825122014.htm A study on 'canopy soils' on old trees in Costa Rica shows they are important habitats and carbon stores that cannot easily be replaced. Fri, 25 Aug 2023 12:20:14 EDT //www.koonmotors.com/releases/2023/08/230825122014.htm //www.koonmotors.com/releases/2023/08/230823165355.htm A new study of cavity-nesting birds in Ecuador shows the influence of deforestation on their habitat and reproductive success. Nest boxes could help. Wed, 23 Aug 2023 16:53:55 EDT //www.koonmotors.com/releases/2023/08/230823165355.htm //www.koonmotors.com/releases/2023/08/230823122613.htm Climate impacts such as dry, hot summers reduce the growth and increase the mortality of trees in the Black Forest because they negatively influence the climatic water balance, i.e., the difference between precipitation and potential evapotranspiration. That is the central finding of a long-term study of the influence of climate and climate change on trees in the Black Forest. Wed, 23 Aug 2023 12:26:13 EDT //www.koonmotors.com/releases/2023/08/230823122613.htm //www.koonmotors.com/releases/2023/08/230823122546.htm Researchers combined human and ecological factors to analyze the global scale of non-native tree species invasions. Human activity in hotspots of global trade, such as maritime ports, is linked to an increased likelihood of non-native tree species invasions. However, a high diversity of native tree species can help to curb the intensity of such invasions. Wed, 23 Aug 2023 12:25:46 EDT //www.koonmotors.com/releases/2023/08/230823122546.htm //www.koonmotors.com/releases/2023/08/230822111709.htm New research has revealed Australia's iconic grasstrees -- known as 'yaccas' -- play a critical role in protecting wildlife from deadly weather extremes, thereby ensuring their survival. But the grasses themselves are under threat due to back burning, clearing and disease. Tue, 22 Aug 2023 11:17:09 EDT //www.koonmotors.com/releases/2023/08/230822111709.htm //www.koonmotors.com/releases/2023/08/230821114327.htm Researchers have developed a new tool, REBURN, that can simulate large forest landscapes and wildfire dynamics over decades or centuries under different wildfire management strategies. The model can simulate the consequences of extinguishing all wildfires regardless of size, which was done for much of the 20th century and has contributed to a rise in large and severe wildfires, or of allowing certain fires to return to uninhabited areas to help create a more 'patchwork' forest structure that can help lessen fire severity. REBURN can also simulate conditions where more benign forest landscape dynamics have fully recovered in an area. Mon, 21 Aug 2023 11:43:27 EDT //www.koonmotors.com/releases/2023/08/230821114327.htm //www.koonmotors.com/releases/2023/08/230817163948.htm Research attempts to quantify the value of U.S. property at risk in forested areas exposed to increased ecological disturbance associated with climate change, such as wildfire and tree mortality. Property exposed to such climate risks, especially in California, is project to climb substantially if emission-reduction measures are not taken. Thu, 17 Aug 2023 16:39:48 EDT //www.koonmotors.com/releases/2023/08/230817163948.htm //www.koonmotors.com/releases/2023/08/230804123807.htm Ecologists examined the distribution patterns of canopy soils, and their soil properties, across Costa Rican forests. The researchers suggest canopy soil may store more carbon than previously thought. Consideration of the time needed for reforestation of system with tree canopies should include the time needed for canopy mat regrowth. Fri, 04 Aug 2023 12:38:07 EDT //www.koonmotors.com/releases/2023/08/230804123807.htm //www.koonmotors.com/releases/2023/08/230803141706.htm Tropical forests can harbor hundreds of species of trees in one square mile. Researchers reveal key factors in the spatial distribution of adult trees. Thu, 03 Aug 2023 14:17:06 EDT //www.koonmotors.com/releases/2023/08/230803141706.htm //www.koonmotors.com/releases/2023/07/230731132829.htm Major government and private funding is being invested in planting trees as a powerful tool to fight climate change. But new research shows a troubling bottleneck that could threaten these efforts: U.S. tree nurseries don't grow close to enough trees--nor have the species diversity needed--to meet ambitious planting and restoration goals. Mon, 31 Jul 2023 13:28:29 EDT //www.koonmotors.com/releases/2023/07/230731132829.htm //www.koonmotors.com/releases/2023/07/230727143937.htm The link between tree diversity and spider populations can help homeowners and other land managers better plan tree plantings to naturally mitigate the effects of climate change. Thu, 27 Jul 2023 14:39:37 EDT //www.koonmotors.com/releases/2023/07/230727143937.htm //www.koonmotors.com/releases/2023/07/230725123108.htm Scientists found that fires in America's dry conifer forests are burning hotter and killing more trees today than in previous centuries. The main culprit? Paradoxically, a lack of fires. Tue, 25 Jul 2023 12:31:08 EDT //www.koonmotors.com/releases/2023/07/230725123108.htm //www.koonmotors.com/releases/2023/07/230721113246.htm An exquisitely preserved fossil forest from Japan provides missing links and helps reconstruct a whole Eurasia plant from the late Miocene epoch. Fri, 21 Jul 2023 11:32:46 EDT //www.koonmotors.com/releases/2023/07/230721113246.htm //www.koonmotors.com/releases/2023/07/230720124905.htm Plant geneticists have identified a mutation in a gene that causes the 'weeping' architecture -- branches growing downwards -- in apple trees, a finding that could improve orchard fruit production. Thu, 20 Jul 2023 12:49:05 EDT //www.koonmotors.com/releases/2023/07/230720124905.htm //www.koonmotors.com/releases/2023/07/230713141912.htm Researchers use CRISPR techniques to modify lignin levels in poplar trees. Thu, 13 Jul 2023 14:19:12 EDT //www.koonmotors.com/releases/2023/07/230713141912.htm //www.koonmotors.com/releases/2023/07/230710133054.htm America's forests have a tough time in store for them. Climate change is increasing temperatures and decreasing moisture levels across the country, not a winning combination for trees. Mon, 10 Jul 2023 13:30:54 EDT //www.koonmotors.com/releases/2023/07/230710133054.htm //www.koonmotors.com/releases/2023/07/230710113929.htm A study has identified genes involved in development of stone cells -- rigid cells that can block a nibbling insect from eating budding branches of the Sitka spruce evergreen tree. The insect's attack has stunted the growth of these forest giants. Mon, 10 Jul 2023 11:39:29 EDT //www.koonmotors.com/releases/2023/07/230710113929.htm //www.koonmotors.com/releases/2023/07/230706231342.htm Many at-risk forest tree species will probably need biotechnology along with traditional tree-breeding approaches to survive, according to new insights. Thu, 06 Jul 2023 23:13:42 EDT //www.koonmotors.com/releases/2023/07/230706231342.htm //www.koonmotors.com/releases/2023/06/230629125706.htm A new study that included millions of tree-year observations worldwide for the first time documents and analyzes the intricate balance between seed defense and dispersal by forest trees at a global scale. Thu, 29 Jun 2023 12:57:06 EDT //www.koonmotors.com/releases/2023/06/230629125706.htm //www.koonmotors.com/releases/2023/06/230621164653.htm As scientists try to understand the effect of climate on trees, advances in imaging technology are helping them see both the whole forest and every individual tree. High-resolution images taken by cubesats, small, shoebox-sized devices launched into low Earth orbit, are helping environmental scientists make more precise measurements about trees' response to a warming climate. Wed, 21 Jun 2023 16:46:53 EDT //www.koonmotors.com/releases/2023/06/230621164653.htm //www.koonmotors.com/releases/2023/06/230606111658.htm A study of the relationship between the growth rate of tropical trees and the frequency of genetic mutations they accumulate suggests that older, long-lived trees play a greater role in generating and maintaining genetic diversity than short-lived trees. Tue, 06 Jun 2023 11:16:58 EDT //www.koonmotors.com/releases/2023/06/230606111658.htm //www.koonmotors.com/releases/2023/06/230605181213.htm Researchers show that an evolutionary change in the length of lizards' legs can have a significant impact on vegetation growth and spider populations on small islands in the Bahamas. This is one of the first times, the researchers say, that such dramatic evolution-to-environment effects have been documented in a natural setting. Mon, 05 Jun 2023 18:12:13 EDT //www.koonmotors.com/releases/2023/06/230605181213.htm //www.koonmotors.com/releases/2023/05/230531150041.htm Scientists have identified a key chemical associated with lethal bronzing (LB) infected palm trees. LB is a bacterial disease that kills more than 20 species of palm trees in the Southern United States and Caribbean and has been devastating the Florida green industries for nearly two decades. Wed, 31 May 2023 15:00:41 EDT //www.koonmotors.com/releases/2023/05/230531150041.htm //www.koonmotors.com/releases/2023/05/230522145851.htm Droughts can be good for trees. Certain trees, that is. Contrary to expectation, sometimes a record-breaking drought can increase tree growth. Why and where this happens is the subject of a new article. Mon, 22 May 2023 14:58:51 EDT //www.koonmotors.com/releases/2023/05/230522145851.htm //www.koonmotors.com/releases/2023/05/230509122128.htm Researchers study the flight performance of the mountain pine beetle from a fluid mechanics and an entomological perspective. Understanding these aspects of the insect's flight could improve estimates of its spread through the environment and preserve pine forests. To examine insect flight, the team employed a type of model previously used for idealized airfoils. They showed that it can be successfully applied to multiple individual animals across biological sex, insect age, and body size. In doing so, the model can predict how these factors impact flight characteristics. Tue, 09 May 2023 12:21:28 EDT //www.koonmotors.com/releases/2023/05/230509122128.htm //www.koonmotors.com/releases/2023/05/230509122059.htm Which energy type promotes the biodiversity of beetles living in dead wood in the forest? That depends entirely on where the beetles are in the food chain. Tue, 09 May 2023 12:20:59 EDT //www.koonmotors.com/releases/2023/05/230509122059.htm //www.koonmotors.com/releases/2023/05/230509122042.htm Fungal networks interconnecting trees in a forest is a key factor that determines the nature of forests and their response to climate change. These networks have also been viewed as a means for trees to help their offspring and other tree-friends, according to the increasingly popular 'mother-tree hypothesis'. An international group of researchers re-examined the evidence for and against this hypothesis in a new study. Tue, 09 May 2023 12:20:42 EDT //www.koonmotors.com/releases/2023/05/230509122042.htm //www.koonmotors.com/releases/2023/04/230428130814.htm Certain types of fungi can communicate with each other via electrical signals. But much remains unknown about how and when they do so. A group of researchers recently headed to the forest to measure the electrical signals of Laccaria bicolor mushrooms, finding that their electrical signals increased following rainfall. Fri, 28 Apr 2023 13:08:14 EDT //www.koonmotors.com/releases/2023/04/230428130814.htm //www.koonmotors.com/releases/2023/04/230427114550.htm The ant mounds on the heath, in the forest and in your garden are oases for life. The heat and nutrients from ant mounds make them the perfect home for unique plant and animal species, according to new research. Thu, 27 Apr 2023 11:45:50 EDT //www.koonmotors.com/releases/2023/04/230427114550.htm //www.koonmotors.com/releases/2023/04/230426210500.htm A major collaboration involving 80 scientists from Europe and South America has identified the regions of the Amazon rainforest where trees are most likely to face the greatest risk from drier conditions brought about by climate change. Based on the analysis, the scientists predict trees in the western and southern Amazon face the greatest risk of dying. They also warn that previous scientific investigations may have underestimated the impact of drought on the rainforest because those studies focused on the central-eastern part of the forest, which is the least vulnerable to drought. Wed, 26 Apr 2023 21:05:00 EDT //www.koonmotors.com/releases/2023/04/230426210500.htm //www.koonmotors.com/releases/2023/04/230418142407.htm 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. Tue, 18 Apr 2023 14:24:07 EDT //www.koonmotors.com/releases/2023/04/230418142407.htm //www.koonmotors.com/releases/2023/04/230411105928.htm 多米尼加岛从美食直接命中gory 5 Hurricane Maria. Nine months afterward, researchers found that while 89% percent of trees located in nine previously documented forest stands were damaged, but only 10 percent had immediately died. The most common damage was stem snapping and major branch damage. The damage with the highest rates of mortality were uprooting and being crushed by a neighboring tree. Large individual trees and species with lower wood density were susceptible to snapping, uprooting and mortality. Those on steeper slopes were more prone to being crushed by neighboring trees. Tue, 11 Apr 2023 10:59:28 EDT //www.koonmotors.com/releases/2023/04/230411105928.htm //www.koonmotors.com/releases/2023/04/230406113941.htm 气候变化可能会永久fo如何妥协rests are able to store carbon and keep it out of the air. In a new study, researchers found that the regions most at risk to lose forest carbon through fire, climate stress or insect damage are those regions where many forest carbon offset projects have been set up. The authors assert that there's an urgent need to update these carbon offsets protocols and policies. Thu, 06 Apr 2023 11:39:41 EDT //www.koonmotors.com/releases/2023/04/230406113941.htm //www.koonmotors.com/releases/2023/04/230405161420.htm Ponderosa pine forests in the Sierra Nevada that were wiped out by western pine beetles during the 2012-2015 megadrought won't recover to pre-drought densities, reducing an important storehouse for atmospheric carbon. Wed, 05 Apr 2023 16:14:20 EDT //www.koonmotors.com/releases/2023/04/230405161420.htm //www.koonmotors.com/releases/2023/04/230404114210.htm 昆虫的数量一直在下降. This has already been well documented for agricultural areas. In forests, however, temporal trends are mostly studied for insect species that are considered pests. Now, a research team has studied the trends of very many insect species in German forests. Contrary to what the researchers had suspected, the results showed that the majority of the studied species are declining. Tue, 04 Apr 2023 11:42:10 EDT //www.koonmotors.com/releases/2023/04/230404114210.htm //www.koonmotors.com/releases/2023/04/230403162611.htm Researchers provide open-access tool to capture new data on a global plant destroyer, Phytophthora. Mon, 03 Apr 2023 16:26:11 EDT //www.koonmotors.com/releases/2023/04/230403162611.htm //www.koonmotors.com/releases/2023/03/230323154211.htm The medicinal secrets of the Chilean soapbark tree have been laid bare, unlocking a future of more potent, affordable, and sustainably sought vaccines. Researchers have taken a major step forward in addressing this problem, by using a combination of genome mining and bioengineering techniques to produce saponin-based vaccine adjuvants in the laboratory without harvesting material directly from trees. Thu, 23 Mar 2023 15:42:11 EDT //www.koonmotors.com/releases/2023/03/230323154211.htm //www.koonmotors.com/releases/2023/03/230321112613.htm The growing period of hardwood forests in eastern North America has increased by an average of one month over the past century as temperatures have steadily risen, a new study has found. Tue, 21 Mar 2023 11:26:13 EDT //www.koonmotors.com/releases/2023/03/230321112613.htm //www.koonmotors.com/releases/2023/03/230320172624.htm Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a 'decline spiral' in parts of the region. Mon, 20 Mar 2023 17:26:24 EDT //www.koonmotors.com/releases/2023/03/230320172624.htm //www.koonmotors.com/releases/2023/03/230317145011.htm More than 85% of the world's bird, mammal, and amphibian species live in mountains, particularly in forest habitats, but researchers report that these forests are disappearing at an accelerating rate. Globally, we have lost 78.1 million hectares (7.1%) of mountain forest since 2000 -- an area larger than the size of Texas. Much of the loss occurred in tropical biodiversity hotspots, putting increasing pressure on threatened species. Fri, 17 Mar 2023 14:50:11 EDT //www.koonmotors.com/releases/2023/03/230317145011.htm //www.koonmotors.com/releases/2023/03/230308084410.htm Research into the ability of a wildfire to improve the health of a forest uncovered a Goldilocks effect -- unless a blaze falls in a narrow severity range, neither too hot nor too cold, it isn't very good at helping forest landscapes return to their historical, more fire-tolerant conditions. Wed, 08 Mar 2023 08:44:10 EST //www.koonmotors.com/releases/2023/03/230308084410.htm //www.koonmotors.com/releases/2023/03/230306101433.htm Conifers are generally better than broad-leafed trees at purifying air from pollutants. A new study shows that the best trees for air purification depend on the type of pollutant involved. Mon, 06 Mar 2023 10:14:33 EST //www.koonmotors.com/releases/2023/03/230306101433.htm //www.koonmotors.com/releases/2023/03/230306100832.htm Researchers have developed an algorithm that uses computer vision techniques to accurately measure trees almost five times faster than traditional, manual methods. Mon, 06 Mar 2023 10:08:32 EST //www.koonmotors.com/releases/2023/03/230306100832.htm //www.koonmotors.com/releases/2023/03/230301120841.htm Deforestation is resulting in reduced rainfall across large parts of the tropics, according to new research. People living in tropical forest communities have often complained that the climate gets hotter and drier once trees are cleared but until now, scientists have not been able to identify a clear link between the loss of tree cover and a decline in rainfall. Wed, 01 Mar 2023 12:08:41 EST //www.koonmotors.com/releases/2023/03/230301120841.htm //www.koonmotors.com/releases/2023/03/230301120828.htm Researchers have developed a method that has now mapped several billion trees and their carbon uptake in Africa's Sahel. In the future, the method could be used to monitor whether climate credit purchases have a positive effect on the number of trees and whether nature restoration is working. Wed, 01 Mar 2023 12:08:28 EST //www.koonmotors.com/releases/2023/03/230301120828.htm //www.koonmotors.com/releases/2023/02/230227132719.htm What is the origin of the ancestors of present-day fish? What species evolved from them? A 50-year-old scientific controversy revolved around the question of which group, the 'bony-tongues' or the 'eels', was the oldest. A study has just put an end to the debate by showing through genomic analysis that these fishes are in fact one and the same group, given the rather peculiar name of 'Eloposteoglossocephala'. These results shed new light on the evolutionary history of fish. Mon, 27 Feb 2023 13:27:19 EST //www.koonmotors.com/releases/2023/02/230227132719.htm //www.koonmotors.com/releases/2023/02/230223132810.htm Fungal pathogens that cause pine ghost canker are infecting conifer trees in urban forests of Southern California, scientists found. Thu, 23 Feb 2023 13:28:10 EST //www.koonmotors.com/releases/2023/02/230223132810.htm //www.koonmotors.com/releases/2023/02/230222115908.htm 减少农业landsc生物多样性丧失apes, more sustainable and environmentally friendly agricultural practices are needed. A research team has investigated how ecosystem services such as pollination could be improved in macadamia plantations. The scientists showed that a certain design of plantations -- for instance, how the rows of trees are arranged, the varieties, and the integration of semi-natural habitats in and around the plantations -- can increase the pollination performance of bees. Wed, 22 Feb 2023 11:59:08 EST //www.koonmotors.com/releases/2023/02/230222115908.htm //www.koonmotors.com/releases/2023/02/230222115858.htm Researchers created maps showing where warmer weather has left trees in conditions that don't suit them, making them more prone to being replaced by other species. The findings could help inform long-term wildfire and ecosystem management in these 'zombie forests.' Wed, 22 Feb 2023 11:58:58 EST //www.koonmotors.com/releases/2023/02/230222115858.htm //www.koonmotors.com/releases/2023/02/230221144356.htm An international research team demonstrates that the European spruce bark beetle (Ips typographus) uses volatile fungal metabolites of plant defense substances as important chemical signals in their attack on spruce trees. The researchers also show that the insects have olfactory sensory neurons specialized for detecting these volatile compounds. The fungal metabolites likely provide important clues to the beetles about the presence of beneficial fungi, the defense status of the trees, and the population density of their conspecifics. The study highlights the importance of chemical communication in maintaining symbiosis between bark beetles and their fungal partners. Tue, 21 Feb 2023 14:43:56 EST //www.koonmotors.com/releases/2023/02/230221144356.htm //www.koonmotors.com/releases/2023/02/230208191736.htm 濒临灭绝的巴哈马岛莺可以依靠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. Wed, 08 Feb 2023 19:17:36 EST //www.koonmotors.com/releases/2023/02/230208191736.htm //www.koonmotors.com/releases/2023/02/230208124227.htm 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. Wed, 08 Feb 2023 12:42:27 EST //www.koonmotors.com/releases/2023/02/230208124227.htm //www.koonmotors.com/releases/2023/02/230206170609.htm 新的研究表明,退化草原生态系统s 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. Mon, 06 Feb 2023 17:06:09 EST //www.koonmotors.com/releases/2023/02/230206170609.htm