Articles tagged with Plant Ecology
Researchers found that plants produce more defensive chemicals when exposed to caterpillar feeding vibrations, repelling future attacks. The plants distinguished between feeding vibrations and other environmental sources, highlighting their ability to detect insect threats.
A new study found that migratory birds are responsible for spreading plant species across the Americas, with seeds trapped in their feathers offering clues to plant distribution between hemispheres. The research provides critical insight into the ecology and evolution of plants represented across both continents.
Scientists have found that Borneo's dipterocarp trees produce wood faster than their neighbors and other tree species in the Amazon, with average differences of 3.2 tons per hectare per year. This unique trait may be linked to their ability to tap into scarce nutrient resources or trade-off growth for other plant parts.
Alpine plants show genetic differences in appearance and features due to Ice Age climate changes, highlighting their adaptability to environmental conditions. The study discovered variations within species are partly driven by natural selection, with plants adapting to shorter growing seasons.
Researchers found that plants can eavesdrop on herbivore cues, including snail slime, to mount a defensive response before being attacked. The study shows plants can use generalist herbivore cues in a sophisticated way to trigger defense mechanisms.
A new study found that chronic harvesting of the African mahogany tree can alter its reproduction and drastically curtail fruit and seed yields. The research used mathematical modeling to estimate plant age from size, revealing different effects on life history traits in dry and moist regions.
Researchers discovered that female moths use changes in plant volatile compounds to guide ovipositing to unattacked plants, avoiding predators and competing caterpillars. This allows them to minimize the risk of newly laid eggs being eaten by predators.
Research by Monica Gagliano and Michael Renton found that plants can positively influence seed growth via unknown mechanisms. Chilli seeds germinated better when grown with basil plants, even when other signals were blocked.
Researchers found that releasing green leaf volatiles increases plant fitness by attracting enemies of herbivores and boosting reproduction. This natural defense mechanism can improve agricultural yields without harming the environment.
A new method developed by UCLA life scientists can rapidly and reliably assess drought tolerance in plants for diverse species across ecosystems worldwide. The method is based on the turgor loss point and osmotic potential, allowing for fast estimates within 10 minutes per leaf.
The Ecological Society of America honored eight scientists with prestigious awards for their outstanding contributions to ecology, including Robert Naiman and Janet Lanza. The awards recognize meritorious research, teaching, and service to the field of ecology.
A new study reveals that insects store voicemails via their effects on soil fungi, passing signals to future plants and their enemies.
A UCLA study resolves decades-old debates on plant drought tolerance, finding that saltier cell sap is key to survival. The team's discovery allows for predictions of which species can thrive in dry environments.
University of Guam ecologist Thomas Marler conducted botanical surveys on Mount Pinatubo's slopes to study primary succession. He found that unstable soil surfaces continue to impact community formation, and elevation and distance from human settlement are key factors in vegetation characteristics.
The TRY global database provides 3 million traits for 69,000 plant species, enabling more accurate predictions of ecosystem changes under climate change. This will revolutionize biodiversity research by accounting for variation among species in their traits.
A new global plant database, led by University of Minnesota researchers, offers trait data for 69,000 plant species, enabling more realistic models of terrestrial biodiversity. The database promises to support a paradigm shift in Earth system sciences and improve carbon cycle predictions.
A group of ecologists has issued a call to reevaluate the impact of non-native species on ecosystems, challenging traditional assumptions about their effects. Research highlights that some native species also have negative consequences, such as decimating pine forests.
A new study projects that climate change will likely eliminate Joshua trees from 90 percent of their current range within 60 to 90 years. The species' ability to migrate via seed dispersal may be severely limited due to its reliance on seed-caching rodents.
A study in Indianapolis found that increasing urbanization has led to the loss of native plant species and the introduction of non-native invasive species. Over 70 years, Indianapolis's native plants have declined at a rate of 2.4 species per year, while non-natives arrive at a rate of 1.4 species per year.
Researchers found that 150-year-old pressed plants tell the same story about warmer springs and earlier flowering as field-based observations. The study provides first direct proof that pressed plants in herbarium collections can be used to study relationships between phenology and climate change.
Early flowering plants gained a competitive advantage through efficient leaf hydraulic systems, increasing photosynthetic capacity. This evolutionary step was triggered by low atmospheric CO2 levels and led to their dominance of land ecosystems.
Smaller plant species thrive under the canopies of large host plants, utilizing resources and establishing quickly. This challenges traditional views on the role of plant size in competitive ability and community assembly.
A study published in Ecology Letters reveals that plants' circadian clocks can improve climate change scenarios by accurately predicting CO2 levels and photosynthesis. The internal clock enables plants to adapt to their environment, surviving and reproducing more efficiently.
Researchers at the Max Planck Institute for Chemical Ecology have discovered a new electrical signal transmission system in plants called 'system potential', which is induced by wounding and can carry different information. This novel system allows plants to rapidly respond to insect herbivory and activate their defense mechanisms.
A recent study by the American Society of Agronomy found that low levels of herbicides can harm potato plant reproduction. The research revealed that tuber yield and quality can be affected even at rates below those causing vegetative growth reduction or injury.
Researchers found that flowers with nicotine and benzyl acetone attract pollinators, increasing seed production. Plants with these chemicals had higher cross-pollination rates than those without, optimizing outcrossing.
The Ecological Society of America presented awards to eight ecologists, including Michael Rosenzweig for the Eminent Ecologist Award and Monica Turner for the MacArthur Award. The awards recognize outstanding contributions to ecological research and education.
A study published in Functional Ecology reveals that plants producing high-quality pollen have closer relationships with pollinators, which is crucial for the survival of certain bumblebee species. The research found that plants relying on insects for pollination produce pollen with 65% more protein than those not reliant on insects.
The study found that plants without the linamarase enzyme lack the Li gene, while those with it produce cyanogenic glucosides. Researchers are testing hypotheses on why acyanogenic plants occur in cold climates, including the possibility of plant suicide due to frequent frosts.
The Ecological Society of America recognizes Daniel Laughlin, Carolyn Kurle, Paul Fine, Jordi Bascompte, and Carol Brewer for their outstanding contributions to ecology. The awards honor excellence in research, education, and corporate sustainability.
Research led by University of Leeds finds significant declines in wild bee and flower diversity in Britain and Netherlands over 25 years. A small number of common generalist pollinators are replacing rarer specialist species, threatening the future of plant reproduction.
Park Grass study demonstrates the value of long-term experiments in ecological studies, revealing new insights into plant biodiversity, competition between plants, and climate change effects. The experiment has inspired new ecological theory and has helped ecologists recognize its importance.
Eight environmental stewards have won $900,000 in biodiversity awards for their conservation efforts. The winners include Maria Marta Chavarria, Graham Harris, and Mengistu Wondafrash, who were recognized for their work protecting endangered species and habitats in Costa Rica, Argentina, and Ethiopia.
Researchers found that when plants supply ants with nectar, it boosts the ants' desire for meat, making them better bodyguards. The most convenient protein packets for ants on plants are often insects that are there to munch on the plant.
A University of Wisconsin-Madison researcher used historic aerial photographs to track road density and found that invasive species can colonize roads within up to 60 years. Forest managers can employ proactive monitoring and quick action to mitigate the impact of roads on native plant life.
A new study reveals that genetic traits within plant species play a crucial role in shaping ecosystem responses to global climate change. The research suggests that these variations should be considered when developing habitat conservation plans.
A field study found that spiders ambushing pollinating insects decrease seed production in flowers. Ecologist Kenwyn Suttle suggests these interactions are common and overlooked by biologists. The research supports the idea that predation on pollinators can impact plant reproduction.
Deer facilitate seed dispersal to native plants in recovering habitats, but also spread invasive species like multiflora rose. White-tailed deer transport seeds up to two miles through their pellets, contributing to plant migration.
Mooney recognized for his work in plant physiological ecology and conservation efforts, including creating new methods to quantify environmental impact on plants. He also established the Global Invasive Species Program to raise awareness of human activities' effects on ecosystems through species introductions.
Research reveals that US nature reserves are unevenly distributed across ecological zones, leaving many plant and animal species unprotected. The study suggests that involving the private sector in conservation strategies can help preserve America's biodiversity.
Scientists found that even in desolate areas, protected plants like seeds, spores, and root balls could sprout new life. The standing dead trees and debris acted as 'lifeboats' for plants and animals, adding complexity to the recovering ecosystem.
The boom in global trade poses a significant threat to the US ecosystem, resulting in $136 billion in annual losses from invasive species. Invasive insects, plant pathogens, and weeds are entering the country through nursery stock, cargo containers, and imports, causing widespread damage to crops, forests, and native wildlife.
A team of botanists used DNA analysis to study the underground travels of plant roots, discovering that some species can extend their roots up to 75 feet into the ground. This research contributes to a better understanding of how plants interact with their environment and climate change.
A team of 200 scientists has reconstructed the evolutionary relationships among all green plants, revealing a single common ancestor that spawned every plant species on Earth. The research also clarifies the relationships between plants and animals, overturning traditional categories.
Research reveals that nectar robbing by bumble bees reduces pollen transfer and pollination success in the scarlet gilia plant. The study found that high robbing rates attract fewer pollinators, leading to decreased reproductive success.
USGS scientists will present research on rare plants, including soft-leaved Indian paintbrush and island jepsonia, and the effects of invasive species like feral pigs. The symposium aims to inform conservation strategies for California Channel Islands National Park.
Researcher Joy Bergelson finds that genetically engineered plants can outcross with wild relatives at a higher rate than previously thought, potentially leading to the creation of super-weeds. This could lead to increased pesticide use and crop competition for water and nutrients.
Research on Nicotiana attenuata reveals that induced defenses can have both ecological benefits and costs, including resource-based costs and potential negative impacts on seed production. The discovery of endogenous wound signals, such as jasmonic acid, has provided tools to activate defenses independently of herbivore attack.
Researchers at Purdue University are conducting a project to count and identify desert plants in Egypt's New Valley region before irrigation begins. The goal is to preserve native plant species and understand the ecological impact of water reclamation on vegetation.
Researchers confirm that plants have an adaptive immune-like response to insect damage, increasing seed production by 60% and resisting pests. The study used wild radish as a model plant and found that triggering this response enhanced plant fitness, providing a potential alternative to chemical pesticides.
Scientists find that excessive nitrogen deposition in grasslands leads to loss of diversity, extinction of native species, and decreased carbon storage. The study, funded by the National Science Foundation, suggests that nitrogen pollution is a major threat to ecosystem functioning.
University of Wisconsin-Madison biologists document a staggering decline in native prairie plant diversity over the last 30 to 50 years. The research reveals that short, small-seeded plants like legumes experienced the heaviest losses due to fire suppression and dense growth.
A Duke University study suggests that plants may shunt excess atmospheric carbon dioxide into groundwater to remain stored away for thousands of years. This could help solve the mystery of missing CO2 in the atmosphere and potentially lower predicted impacts of global warming.