Articles tagged with Species Diversity
Oscar Loayza, a conservationist with the Wildlife Conservation Society's Madidi Program, has been recognized for his work on strengthening indigenous participation in protected area management. His initiatives led to improved governance and consolidated indigenous territorial rights in Bolivia's Madidi National Park.
Two new species of rare forget-me-nots have been added to Flora of New Zealand, found in the mountains of the South Island. These uncommon species are Nationally Critical due to their low population numbers and habitat specificity.
A WSU researcher finds that forest disturbances, including fires and wildfires, can help create habitats for rare plants and animals. This approach to forest management can enhance biodiversity by mimicking natural disturbances.
A recent survey conducted at the University of California, Berkeley, found 48 distinct bird species within a 84-acre area, surpassing previous records from 1913 and 1938. The study suggests that urban green spaces can serve as islands of diversity, supporting a wide range of bird species.
Researchers found that two closely related sea star species diverged around 6,000-22,000 years ago, ruling out slow genetic changes over time. The boundary between cold and warm water in the Coral Sea may have isolated a small population of ancestral sea stars.
Research suggests that top predators play a crucial role in extinction risk, as they can amplify the effects of climate change on other species. Studying these biotic multipliers and their interactions with other species is essential to improve predictions of climate change impacts.
A three-year $900,000 grant was awarded to Drs. Brian Brown and Art Borkent to inventory all species of flies living in a 100x200 meter area in Costa Rica, estimated to discover at least 3,000 new species. This project aims to better understand the importance of insects in ecosystems and gauge the impact of habitat change.
A sweeping review of 20 years of research finds that biodiversity loss diminishes ecosystem services essential for human health and prosperity. Genetic diversity enhances crop yields, wood production, and fodder, while plant diversity increases resistance to invasive species and pathogens.
A new crane fly species, Tipula recondita, has been discovered in Northwestern Europe, specifically in Finland and the Russian Far East. The species is highly disconnected, with Finnish and Russian populations separated by over 6500 km. DNA barcoding confirms a single but disjunct species.
A team of Indiana University biologists has shown that species diversity is maintained on a spatial scale of unparalleled scope due to the survival of tree seedlings under their own parents. This discovery highlights the role of conspecific negative density dependence in driving diversity from boreal forests to sub-tropical forests.
Researchers found that high biodiversity regions are linguistically diverse, with 3,202 languages spoken in 35 hotspots and 1,622 in five wilderness areas. Linguistic loss threatens biodiversity as well, with up to 90% of languages disappearing by the end of the 21st century.
Researchers found that vascular plant species have migrated an average of 2.7 meters upwards in European mountains over 7 years, posing a threat to unique endemic species. The study also reveals an increase in species diversity at low elevation sites in the Mediterranean region.
A recent study found that mammalian families in North America maintained similar niches throughout the past 56 million years, despite significant climate changes. The research suggests that family diversity played a crucial role in their ability to adapt and maintain larger ranges.
A study by UBC and IIASA researchers reveals that picky females can promote diversity in species through selective mating. They must occupy different resource hotspots and pay a cost for their preferences to prevent invasion of undesirable areas.
A recent study led by Carlos J. Melian found that speeding up evolution through sexual reproduction may actually decrease species diversity. The researchers developed new models to connect the mode of reproduction to biodiversity and found that high genetic variation and evolutionary rates have little effect on general biodiversity.
Researchers found at least 10 species of water fleas in northern lakes and ponds, including a new species from Alaska's Seward Peninsula. The discovery sheds light on the unique biodiversity of subarctic regions with vanishing waters.
Researchers have reconstructed the giant prehistoric New Zealand penguin, Kairuku, from two separate fossils, providing new insights into its body shape and uniqueness. The reconstruction reveals a slender body, long flippers, and short legs, standing around 4-feet-2 inches tall.
Venomous creatures' active surfaces evolve rapidly in response to environmental constraints, while non-active 'structural' surfaces change minimally. This phenomenon supports the Red Queen's hypothesis and may aid in designing novel synthetic proteins with tailored pharmaceutical properties.
A new study reveals a significant decline in the genetic diversity of alpine chipmunks in Yosemite National Park due to climate change. The species' geographic range has shifted to higher elevations over the past 90 years, resulting in fragmented and genetically impoverished populations.
Researchers Stefano Allesina and Si Tang refined Robert May's 1972 formula to incorporate predator-prey relationships, allowing for greater ecosystem diversity. The new model predicts that large ecosystems can support an infinite number of species through complex interactions.
Linguist Michael Cysouw disputes Quentin Atkinson's claim that the cradle of language is in southwest Africa, citing inconsistent results from comparative linguistics analysis. The study's findings suggest the site of language origin may be located in eastern Africa or the Caucasus, rather than supporting an 'Out-of-Africa' model.
Researchers identified six consecutive waves of mammal species diversity in North America, linked to climate change and temperature fluctuations. The study found correlations between species diversity and global paleotemperatures, shedding light on the impact of climate change on mammal evolution over millions of years.
A new study found that vertebrate evolution exhibits 'head-first' diversity, where head features diversified before body shapes and types around extinction events. This discovery contradicts previous models of adaptive radiations, suggesting feeding-related pressures are the initial drivers of diversification.
A new study by the University of Leeds reveals that major roads have a detrimental impact on bat populations, reducing activity and diversity. The research shows a strong correlation between distance from the road and bat activity, highlighting the need for effective mitigation measures to protect these protected species.
The study found that archaeophytes, introduced since Neolithic agriculture, are positively affected by arable land availability at low altitudinal ranges. Invasive neophyte species harbor 67% of Prague's nature reserves, including many shrubs and trees with high invasion potential.
Research from Cardiff University reveals that invertebrates living on the woodland floor regulate fungal battles, ensuring less competitive species survive. This process maintains soil quality and fertility, supporting native trees and plants.
University of Pennsylvania researchers have developed a new technique for analyzing phylogenies, showing that the results stand up against known fossil history of whale species. The method allows for changing rates of speciation and extinction over time and among lineages.
Researchers at Oregon State University found that increased species richness decreases the prevalence and severity of infection caused by the deadly chytrid fungus in amphibians. This study provides evidence for the importance of biodiversity in protecting ecosystem function and reducing disease transmission.
Dams and weirs have a profound effect on the ecosystem of watercourses, causing a significant decline in species diversity. The study found that fish species are 25% lower upstream of weirs compared to downstream areas, while invertebrate diversity is up to 50% lower.
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.