Articles tagged with Pollinators
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Researchers discovered that trees in Chilean forests relying on hoverflies for pollination fare better when separated by resource-poor pine plantations than by agricultural lands. The 'Circe Principle' explains how abundant resources can slow or prevent pollinator movement, challenging existing conservation models.
A new study shows that globally, animal-pollinated crops contain a majority of dietary lipids, vitamins A, C, and E, and minerals like calcium and iron. Without pollinators, up to 40% of essential nutrients could be lost.
A USGS study found that native bee communities are shaped by local factors, such as soil type, tree density, and fire frequency, rather than the composition of a plant community. Specialist bees tend to live in open areas with native plants, particularly in disturbed habitats like burned areas and residential zones.
Scientists have found a mid-season decline in wildflowers at high-altitude meadows, affecting pollinator populations. This shift is attributed to climate change, which alters moisture availability and flowering timing, leading to ecosystem-wide impacts on animals that feed on pollen and nectar.
A €3.5M European Commission-funded project is working to understand the causes of pollinator declines and develop ways to manage landscapes for wild bee conservation. The STEP project aims to safeguard pollinators providing essential services to crops and wildflowers.
The U.S. Geological Survey has launched an updated version of its Butterflies and Moths of North America (BAMONA) website, featuring improved data collection and dissemination technologies. Verified sighting records are now immediately available on the site's home page, allowing for more efficient monitoring of pollinator populations.
Researchers found that bee-pollinated Penstemon species have distinct genetic clusters per mountain range, while bird-pollinated species show less genetic structure across ranges. Hummingbirds facilitate gene flow among distant populations, constraining local adaptations.
Native pollinators such as wild bees and wasps infected with RNA viruses, transmitted via pollen. Viral diseases may impact pollinator populations and ecosystem health.
A new study reveals that elephant-shrews consume the nectar of Pagoda lily flowers and pollinate them. The animals' long noses and tongues allow them to access the nectar without damaging the flowers. This discovery sheds light on the unusual group of non-flying mammals known for their pollination abilities.
The Eastern marsh helleborine orchid produces alarm substances that mimic aphid pheromones, attracting five species of hoverflies. Hoverfly females lay eggs in the flower, which also provides a small amount of nectar as a reward.
Growing plants with red flowers or striped blooms can significantly increase the number of visits from bumblebees, according to a study by Norwich BioScience Institutes. The research found that stripes following the veins of flowers provide a visual guide for pollinators, directing them to nectar and pollen.
The Solomon's lily plant attracts drosophilid flies by mimicking the yeasty odor of fermentation using six chemicals. This deception is rooted in a deeply conserved neuronal pathway specifically tuned to yeast odors, exploiting an ancient instinct in flies for pollination and food.
Research reveals that carnivorous plants like sundews prioritize pollination over insect safety, with taller flowers attracting more visitors. A study of two sundew species found that longer stems increased flower visits by ten times compared to shorter ones.
The USDA research found that bee pastures can support the growth of healthy young bees by up to fivefold a year. The pastures feature native California plants such as Chinese houses and lacy phacelia, providing a practical and environmentally friendly way to promote pollinator populations.
Researchers developed a novel hybrid of two orchid species, creating a unique scent that attracted a distinct wild bee. The offspring's floral odor was highly attractive to solitary bees unfamiliar with the parent plants' scent.
The Nicotiana attenuata tobacco plant has developed a clever strategy to combat herbivorous caterpillars: it opens its flowers in the morning instead of at night. This change in flower phenology also attracts a new pollinator, the local hummingbird, which is satisfied with just nectar rewards.
A researcher has used motion-sensitive night cameras to capture the first known instance of a cricket functioning as an orchid pollinator. The 'raspy' cricket is also entirely new to science and has been found to be a surprisingly efficient pollinator, with higher rates of pollination and fruit set in certain orchid species.
Researchers explore the development and morphology of insect-mimicking spots on the flower petals of a South African beetle daisy. The study found that these spots are composed of three types of epidermal cells, each spanning four fused petal lobes, and are influenced by UV reflectivity and anthocyanin pigment.
Researchers have found that certain orchids, including the Dendrobium sinense species on the Chinese island of Hainan, produce a chemical mimicry that fools hornet pollinators. This unique deception is achieved through the production of Z-11-eicosen-1-ol, a rare compound that attracts hornets and other wasps.
A recent study reveals that honeybee populations are increasing worldwide, contrary to concerns of a 'pollination crisis'. However, the demand for crops relying on insect pollination has more than tripled over the last half century.
Despite pollinator decline, global crop yields have consistently grown at 1.5% per year since 1961 due to agricultural improvements. However, research detected warning signs of growing demand for pollinators and declining yield growth in highly dependent crops.
A study estimates the economic value of insect pollination worldwide at €153 billion in 2005, which represented 9.5% of global agricultural production. The loss of pollinators would result in a consumer surplus loss of €190-310 billion due to price elasticity of demand.
Ecologists assess the impact of human activity on bee populations and explore alternatives with native bees serving as 'biological insurance.' A study found that areas with extreme fragmentation have smaller bee populations and fewer species.
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.
A University of Virginia study finds that air pollution destroys flower scents by up to 90 percent, impairing pollinators' ability to locate flowers. This decline in fragility contributes to the declining populations of bees and butterflies, which are essential for food production.
A study by University of Reading scientists reveals that parasitic wasps may help stabilize the mutually beneficial relationship between tropical figs and pollinator wasps. The wasps' offspring are more likely to be attacked by parasitic wasps in outer ovules, prompting them to avoid laying eggs there.
The sizes and positions of floral anthers facilitate pollen collection by buzz-pollinating bees, according to Dr. Endress's work. Slight genetic changes can affect flower morphology and pollinator compatibility, highlighting the importance of understanding these interactions.
Researchers discovered that plant nectar contains secondary compounds, including nicotine, which repel pollinators and attract 'nectar thieves'. This finding suggests that plants may produce nectar to increase genetic diversity by attracting more visitors despite the potential risk of poisoning insects.
A new study proposes that two key mechanisms, trait complementarity and barriers to exploitation, explain the structure of actual networks of plants and their pollinators. The models incorporating these mechanisms better mimic real networks, suggesting a balance between specialist and generalist interactions.
Researchers discovered that bumblebee workers specialize in tasks such as incubating young and fanning wings to cool the nest. The study found strong evidence for job specialization, with larger bees taking on foraging tasks, and smaller bees performing temperature-regulation duties.
A new study estimates that 87 out of 115 leading global crops depend to some degree on animal pollination, accounting for one-third of crop production globally. This reliance on pollinators is particularly concerning due to the decline in key North American pollinator populations.
Biologists at UCSD discovered red and yellow monkeyflowers have distinct pollinators, with hummingbirds preferred for the red form and hawkmoths for the yellow. The shift in flower color is likely due to natural selection by these different pollinators.
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.
Research reveals that plant species in highly diverse ecosystems face reduced fruit production due to inadequate pollination. This lack of pollination hinders the survival and reproduction of plants, posing a significant threat to their extinction.
A global study reveals that plants in highly diverse ecosystems, such as South American and Southeast Asian jungles, suffer lower pollination rates and reduced reproductive success. This could push certain plant species towards extinction.
A global study of over 1,000 pollination experiments found that high plant diversity can lead to reduced pollination and reproductive success. This reduction in fruit and seed production may push vulnerable species towards extinction.
A new study finds that high levels of pollen limitation in species-rich regions may lead to extinctions due to insufficient pollination. Plant species in these areas often compete intensely for pollinators, resulting in reduced fruit and seed production. This threatens the survival of not only plants but also animals dependent on them.
A new study suggests that declining biodiversity in pollination networks may threaten plant community persistence. The experimentally manipulated plant and pollinator interactions show increased pollination efficiency with complementary insect and flower pairings.
Researchers found that fish in ponds increase pollination of St. John's wort due to the decline of dragonfly populations, which then shift their prey to bees and flowers, fostering a mutually beneficial relationship. This study highlights the impact of species interactions on ecosystem dynamics.
Researchers found that flowers induce immediate and long-term positive effects on emotional reactions, mood, social behaviors, and memory in both men and women. The evolutionary emotional niche model suggests that humans' emotional connection with flowers is a key factor in their survival and diversity.
Researchers at Michigan State University found that initial changes in genetic makeup can lead to significant adaptations in plants and other organisms. The study used the monkeyflower plant, altering its genome to attract new pollinators, such as hummingbirds.
Research reveals that mass flowering crops, such as oilseed rape, play a crucial role in enhancing bumblebee densities in agricultural landscapes. Contrary to previous assumptions, the availability of these crops at a landscape scale is essential for supporting pollinator populations.
Research shows that exotic honeybees significantly improve coffee crop yields by up to 50%. The study emphasizes the need to preserve natural habitats for these pollinators to maintain biodiversity and sustainable agriculture practices. By removing their natural habitats through intensive cultivation, we risk losing crucial pollinators.