Articles tagged with Species Diversity
Research reveals Iberian lynx fossils have low genetic variation over the last 50,000 years, suggesting moderate population sizes may ensure long-term survival. This finding challenges the myth that certain species are doomed by their genetics.
A new species of mushroom, Spongiforma squarepantsii, has been discovered in the forests of Borneo. The fungus has a bright orange color and can turn purple when exposed to certain chemicals, and it has unique gelatinous properties that allow it to revive quickly if it dries out.
Scientists at Queen Mary University of London found that oil palm plantations are driving forest fragmentation, leading to a decline in bat species and genetic diversity. Larger forest patches, over 10,000 hectares, are necessary to retain comparable levels of biodiversity and prevent local extinction.
Scientists have discovered a new species of yeast, Saturnispora quitensis, in the Maquipucuna cloud forest in Ecuador. The yeast produces characteristic Saturn-shaped spores and has potential for fermentation of plant material to produce bio-energy.
Biodiversity research highlights the importance of conserving rare and endangered plant species, as well as understanding patterns of species diversity in aquatic and terrestrial systems. New analyses suggest that modern ecosystems are a product of past events, with implications for present environmental conditions and future directions.
A comprehensive analysis of 574 field and laboratory studies reveals that plant communities with many species are nearly 1.5 times more productive than those with only one species. This suggests that biodiversity is essential for maintaining the functioning of ecosystems, particularly in estuaries like Chesapeake Bay.
Research by the University of Exeter reveals that ants have a significant impact on their environment as ecosystem engineers and predators. The study found that ants can increase diversity and density of other animal groups at low densities, but higher densities counteract this effect through increased predation.
The orangutan genome sequence provides unique insights into human evolution, revealing genetic similarities with a putative ancestral great ape. The study also highlights the importance of conserving genetic diversity in orangutan populations, particularly for the critically endangered Sumatran species.
Researchers found that communities of similar-looking catfish often comprise multiple species, highlighting the hidden diversity and complexity of neotropical freshwater ecosystems. The discovery has significant implications for environmental conservation, as many rivers are facing large-scale development and habitat destruction.
A large-scale study has found major declines in US bumble bee populations, with four species experiencing a 96% drop in relative abundance and a 23-87% loss of geographic range. The researchers attributed the decline to low genetic diversity, high infection rates with the parasite pathogen, and climate change.
Researchers discovered that in a South American fish species, males with less desirable traits like brawn and stealth can still gain a mating advantage. In contrast, females prefer more striking colors, but also prioritize winning male combat, making color diversity surprisingly resilient.
Scientists confirm environmental limits to species diversity, extending the concept over a million years through lizard study in the Caribbean. Larger islands tend to support more distinct species of lizards.
A recent study, led by Hélène Morlon, has found that evolutionary diversity is more sensitive to extinctions or habitat loss than previously thought. The researchers built an evolutionary tree tracing plant species back to their common ancestor and applied mathematical approaches to consider the impact of geographic separation on phylo...
A recent study reveals that Amazonia's incredible biodiversity originated from the formation of the Andes mountains, dating back over 65 million years. The study found a strong correlation between the mountain's creation and the development of Amazonian species.
Researchers found that local populations of Joshua trees and their pollinating moths are not as biologically diverse as expected, contradicting previous theories. The study suggests that co-evolution between the species can actually decrease diversity within each species.
A study led by Howard Ochman found that host species, rather than diet, have the greatest effect on gut bacteria diversity in great apes. The researchers discovered that bacterial populations assorted to species and matched the relationships of their host, indicating a long history of co-evolution.
A study published in Science reveals that Amazonian biodiversity is linked to the geological history of the Andes, dating back to the past 20 million years. The researchers argue that studies aiming to understand Amazonian forests' evolution need to look further back in time.
A team of researchers found that retreating glaciers created a mosaic landscape with numerous islands, bays, and fiords, allowing new species to develop rapidly. The ancestors of these species survived the ice age in warmer regions, resulting in an exceptional biodiversity in southern Chile.
Computational biologists at the University of Pennsylvania found that species diversification rates have typically decayed over time, suggesting a limit to species diversity. The study used phylogenies from various groups and found relatively little extinction in the evolutionary trees, contrasting with the fossil record.
Scientists at the University of Calgary found that available area is the most important factor driving flower diversity, with family traits coming in second. The study suggests that geography and morphology play a significant role in shaping biodiversity patterns.
Researchers found hundreds of rhododendron species could be derived from hybrids, explaining rich biodiversity and ancient cross-breeding. Ancient pairings of wild plants led to development of new species over millions of years.
The Wildlife Picture Index, a new monitoring tool, shows a 36% net decline of biodiversity in Bukit Barisan Selatan National Park. Camera traps collected thousands of images, revealing that large mammals declined faster than small primates and deer.
The Census of Marine Life has published an inventory of species distribution and diversity in 25 biologically representative regions around the world. Crustaceans comprise about one-fifth of all species found, with only two percent being vertebrates.
A team of scientists mapped global diversity patterns for over 11,000 marine species, finding temperature strongly linked to biodiversity and high overlap between areas of human impact and diversity hotspots. The study suggests ocean warming may greatly affect the distribution of life in the sea.
A study published in the Proceedings of the National Academy of Sciences reveals that a fungal disease has decimated amphibian abundance and species diversity in Central America's highlands. The researchers used DNA barcoding to estimate the impact of the epidemic, discovering five new species were also lost.
Researchers found that adult trees harbor pests and diseases that harm seedlings of their own species more than others, leading to stabilizing mechanisms that maintain diversity. The study suggests that plant interactions with soil biota are powerful enough to explain co-existence and abundance patterns in tropical forests.
A new study in Nature highlights the importance of population diversity within species for maintaining stable fisheries. Without sufficient diversity, fisheries would close more frequently, leading to economic instability. The study emphasizes the need to preserve habitat networks to maintain population diversity.
Nine new species of handfish have been described by CSIRO, bringing the total to 14 known species. The discovery deepens concerns about declining populations and environmental vulnerability.
Researchers from UBC have developed a mathematical model that unravels the generation of biological diversity within and between species. The model suggests that multiple traits acting in concert can generate diversity even with weak interactions, mirroring the complexity of reality.
Agricultural Research Service scientists found that plant species diversity and composition are crucial for potential energy yield per acre from biomass harvested from CRP land. The study suggests that CRP lands in the northeastern US with a high proportion of tall native prairie grasses have the potential to produce over 600 gallons o...
A study by Harvard University researchers reveals that changes in beak length and depth can explain the morphological diversity of Darwin's finches. The team used mathematical models and genetic analysis to show that scaling transformations, shear, and gene expression are key factors in shaping the birds' beaks.
Researchers at George Mason University and the University of Otago found a strong correlation between diatom diversity and whale species diversity over the last 30 million years. The study suggests that changes in ocean productivity may drive variations in whale fossil records, providing new insights into the evolution of modern whales.
Scientists have documented unprecedented biodiversity in Yasuní National Park, including 596 bird species, 150 amphibian species, and over 1,100 tree species. The park's extraordinary diversity is threatened by proposed oil development projects.
Butterfly populations in California are declining due to climate change and habitat loss. Researchers found that warmer temperatures are causing lower-elevation species to migrate to higher elevations, while high-elevation specialist butterflies are also facing threats as temperatures become too warm.
The study found that European plant communities are becoming more homogeneous, with rare species becoming extinct and phylogenetic diversity decreasing. This loss of uniqueness makes it harder for biological communities to adapt to environmental changes.
Ancient DNA analysis reveals new horse species in Eurasia and South America, with the Cape zebra found to be a large variant of the modern Plains zebra, while a small hippidion horse was discovered in South America. A new ass species also appears related to European fossils dating back 1.5 million years.
Assessing biological processes under global warming requires accurate estimates of temporal changes in species. Long-term studies show that neglecting increasing seasonal climate lag can lead to distorted results.
A comprehensive study on water vole genetics has been conducted by scientists from the University of Granada and Doñana Biological Station. The research reveals essential information for developing successful conservation plans, which will help preserve the genetic diversity of this endangered species.
A recent analysis of Central American frog surveys reveals the devastating impact of Batrachochytrium dendrobatidis, a microscopic fungus, on frog communities. The study shows that the fungus is causing a 'vast homogenization' of species, leading to significant losses in biodiversity and regional extinctions.
A team of biologists found that a rare species of algae proliferated in corals during a period of high sea surface temperatures in the Caribbean Ocean. The results suggest that this species may save some corals from bleaching, but its long-term impact on coral health is uncertain.
A new revision of the Dioptinae subfamily sheds light on the diversity of tropical moth species, revealing a unique story of parallel evolution. The study found that around 500 species evolved from a common ancestor into diverse butterfly mimics, with some feeding on toxic plants to gain protection.
Researchers develop computer model showing how diverse species can arise from arrangement of organisms across an area without physical barriers or natural selection. The study found that genetic distance increases over generations, leading to a rapid increase in species numbers until they reach a steady state.
UC Riverside researcher Kerry Knudsen discovered a new species of lichen on Santa Rosa Island, California, and named it Caloplaca obamae in honor of President Obama. The discovery highlights the importance of preserving public lands and studying biodiversity on the island.
A study in Evolution Canyon, Israel, shows that scorpion species exhibit different distributions on the south-facing and north-facing slopes, despite identical regional geology. The results suggest that environmental pressures, such as sunlight and drought, can lead to local changes in biodiversity.
A new analysis reveals that phyla with the greatest diversity of species also have the largest range of body sizes, including sponges and molluscs. The study suggests that physical limits to size constraints may prevent some body plans from having a full range of sizes.
The Global Crop Diversity Trust is rapidly reviving ailing seed samples from 46 countries to preserve genetic traits vital to maintaining global food security. The effort, which includes 100,000 different crop varieties, aims to prevent extinction of staple crops like rice, maize, and wheat.
The Census of Marine Life has made significant progress towards its goal, with new discoveries including Antarctic ancestry of many octopus species and behemoth bacteria. The report details major advances in technology, knowledge organization, and measurement of human impact on ocean life.
A study by biologists at Washington University in St. Louis shows that bird diversity is a buffer against the occurrence of West Nile Virus in humans. The more diverse a bird population, the lower the risk of exposure to WNV.
A new experiment simulates predicted rainfall patterns and assesses the effect of diverse plant species on ecosystem responses. The study focuses on how changes in plant diversity modify key functions such as water processing, nutrient cycling, and carbon storage under changing climate conditions.
A study found that shipwrecks on coral reefs harbor unwanted species like Rhodactis howesii, which can overtake healthy coral and decrease diversity. Removing man-made debris could prevent further losses in species and habitat.
A decade-long study published in Science reveals that most diversification occurred early on, with local ecological communities changing relatively little over time. The researchers used a fundamentally new analysis to conclude that the increase in species diversity was less dramatic than previously believed.
Researchers found that diversity among ancient marine creatures like clams and lobsters showed only a modest rise beginning 144 million years ago. The study contradicts previous work suggesting dramatic increases in diversity, providing insight into future diversity and the impact of global warming.
A recent PNAS study reveals that temperature drives biodiversity in tropical regions, contradicting previous assumptions that light was the key factor. The study found that bacterial samples from warm waters contained many species, suggesting that photosynthesis has little influence on diversity.
A recent study published in Science Cornell College biology professor Marty Condon and coauthors discovered multiple new species of fruit flies with overlapping niches, exceeding previous expectations. The research found a greater specialization in plant feeding among herbivorous insects than previously thought.
A recent study identifies seven regions where non-native freshwater fish species make up over a quarter of the recorded species, highlighting the need for surveillance and precautionary measures. The research suggests that human economic activities are the main driving factor behind exotic species invasions in these regions.
Researchers develop new method to measure biodiversity, finding that most species have limited impact on ecosystem diversity. The study reveals that 'attractor' species promote biodiversity in tropical rainforests, while 'repellent' species have a negative effect.
Researchers examined over 7,000 plant species in the human diet, finding that humans consume a remarkably high number of plant families. A study of a McDonald's Big Mac meal revealed approximately 20 different species and ingredients originating from around the world.
Scientists have discovered significant populations of new, rare, and threatened species in Ghana's Atewa Range Forest Reserve, underscoring the area's high biological diversity. The findings include Critically Endangered frog and butterfly species, as well as eight new species of katydids.
Researchers from the University of Bayreuth and Helmholtz Centre for Environmental Research found that Alpine summit vegetation is becoming increasingly homogenized due to climate change. This has led to an increase in species diversity within individual areas, but a decline in regional biodiversity across ecosystems.
A new study challenges current projections by finding that historic climate variability is a better predictor of reptilian and amphibian diversity in Europe than contemporary climate. This contradicts previous studies and has profound implications for predicting biodiversity impacts of climate change.