Articles tagged with Species Diversity
Research reveals that biological invasions are threatening the evolutionary history and ecological strategies of birds and mammals. The study found that 11% of their phylogenetic diversity is at risk, with a greater impact on bird species due to their vulnerability to invasive species.
A team of researchers from the University of California, Santa Barbara, has successfully used environmental DNA (eDNA) to measure beta diversity in aquatic environments. The study found that eDNA analysis was more effective than traditional visual surveys in detecting rare and less abundant species.
A new study by University of Arizona researchers found that both multicellularity and sexual reproduction helped explain the rapid proliferation of animal, plant, and fungal species. The study suggests that multicellularity is actually more important than sexual production in driving diversity.
A biologist is studying anole lizard diversity in Caribbean islands to identify rare species at risk of extinction. The research will inform strategies to conserve vulnerable species by examining niche characteristics such as diet, habitat, and temperature interactions.
Scientists analyzed genomes of East Asian citrus varieties and found a new citrus species native to Okinawa that arose about two million years ago. This discovery may have commercial implications and opens the potential to create additional hybrids with favorable traits.
The UN Convention on Biological Diversity has released a detailed draft agreement for managing nature, proposing 21 action targets to reduce threats to biodiversity and preserve ecosystems. The framework aims to enhance ecosystem integrity, value nature's contributions to people, and share genetic resources fairly.
A global team led by Case Western Reserve University's Beverly Saylor will investigate how ecological factors influenced the evolution of early human ancestors using advanced technology. The project aims to gain a more granular understanding of two fossil sites in Ethiopia and their distinct records of the human genus' early predecessors.
A new study suggests that when tyrannosaurs rose to dominance, their juvenile counterparts filled the ecological niche of medium-sized carnivores. The research analyzed 60 dinosaur communities and found no decline in prey species diversity, indicating that juvenile tyrannosaurs took over the role of missing middle-sized predators.
A new study reveals that juvenile-adult differences shield ecological communities from collapse. The research shows that variations within species are crucial for community stability, leading to the stabilization of ecosystems. Differences in size and growth rates between juveniles and adults contribute to these effects.
A new study found that aquaculture and fisheries have led to the loss of biodiversity along China's 18,000 km long coastline, with commercially exploited species dominating all regions. The study discovered that the uniformity of bivalve species is largely due to human activities, including intensive fishing practices.
The loss of genetic diversity is a pressing crisis that can have devastating consequences for ecosystems and human societies. Monitoring genetic diversity using DNA analysis can help detect vulnerabilities, but technology must be made available globally and data must be accessible to inform conservation efforts.
Researchers found that tree diversity does not shield trees from bark beetle infestation, and the risk is instead redistributed among species. Non-native tree species are initially less attacked due to unfamiliarity with beetles.
A study examining global occurrences and population estimates for approximately 92% of all extant bird species found that there are approximately 50 billion individual birds in the world. Most bird species are rare, with only a few having estimated global populations of over 1 billion individuals.
A new species of giant mosasaur, Pluridens serpentis, was discovered in Morocco, showcasing the high diversity of marine life during the Cretaceous period. The fossil found evidence of a unique sensory system, suggesting that the mosasaur used changes in water pressure to detect prey.
A recent study found that invasive Clavelina oblonga marine fouling species reduces diversity in communities it invades and interferes with their recovery following natural disasters. The study suggests that succession patterns do not hold true in the presence of invasive species.
A new ant species, Strumigenys ayersthey, has been discovered in Ecuador's tropical forests, featuring a trap-jaw morphology and a scientific name that celebrates gender diversity. The species' name, inspired by artist Jeremy Ayers, uses the non-binary suffix -they to recognize non-conventional gender assignments.
A recent study found that more than 470 bee species inhabit a 16 km2 area of protected Chihuahuan Desert, representing 14% of the known United States bee fauna. This biodiversity hotspot provides valuable insights into native bee diversity and highlights the need for baseline information to assess human impact on bee faunas.
A world-first study found that partially protected yellow zones within the Great Barrier Reef Marine Park are still important for conserving reef fish populations. The areas, which limit fishing through gear restrictions, contained up to 69% of the target fish numbers in adjacent no-fishing green zones.
Researchers at the University of Münster studied the impact of plant seed provenance on pollinator diversity and frequency. They found that plants from different regions influenced pollinators' visits to flowers, with some regions offering more frequent interactions.
Researchers from Uppsala University discovered a new species of bumblebee, Bombus incognitus, through genetic analysis of Rocky Mountains samples. The study reveals potential for speciation in arctic and alpine environments due to climate change.
A new species of parasitic cuckoo wasp was discovered in Norway based on its unique use of pheromones. The researchers were able to distinguish between two closely related species by analyzing the chemical language used by the wasps.
Diversifying seafood with multiple species can increase nutrient intake targets and reduce required portion sizes for key nutrients like calcium, iron, zinc, and fatty acids. However, this increased biodiversity also raises concerns about higher exposure to different heavy metals in various seafood species.
Researchers discovered four species of 'serpent coral' with distinct ecological differences, including varying depths and physiological traits. This hidden diversity has implications for reef conservation, highlighting the need for a holistic approach to protect vulnerable ecosystems.
A new study by German researchers found that higher species diversity is positively related to mental health, with people living in regions with more plant and bird species reporting better mental well-being. However, the study did not find a significant relationship between biodiversity and physical health.
A new species of dinosaur, Llkalkan aliocranianus, was discovered with extreme powerful bites, very sharp teeth, and huge claws. Its unique skull structure suggests it may have had a better sense of hearing than other abelisaurids.
Researchers sequenced fecal samples from over 180 species, revealing nearly 1,000 previously unknown microbial species. The dataset provides insights into the functional roles of gut microbiota across animals with diverse adaptations.
Researchers have identified a new, small-sized chameleon living on the edge of the forest in the Bale Mountains. The species, Trioceros wolfgangboehmei, has distinctive features such as enlarged spiny scales and is part of a larger species complex in Ethiopia.
A new study highlights the importance of preserving intraspecific variation within species, which supports essential ecological functions and benefits nature provides for people. The loss of this variation can have serious ecological consequences, including boom-bust population cycles and reduced medicinal properties in plants.
Researchers found a pattern where carnivorous dinosaur communities lacked medium-sized species between 100-1000kg, with juvenile megatheropods filling the gap. This discovery suggests that growth and development played a significant role in shaping ecosystem dynamics.
A new study reveals that megatheropods like Tyrannosaurus rex shaped dinosaur communities by filling ecological niches, explaining low species diversity among smaller dinosaurs. Communities worldwide lacked mesocarnivores due to the flood of resources from rapidly growing juveniles.
Researchers sequenced African leopards' genomes, finding high genetic diversity comparable to Amur leopards. This may give them an advantage in coping with environmental changes, including climate change and habitat destruction.
Researchers found that species diversity in mangrove forests enhances biomass production and soil carbon storage, leading to higher carbon storage capacities. Increasing mangrove diversity through restoration and conservation projects is crucial for mitigating climate change.
Researchers from the University of Helsinki have identified over 70 new species of jelly lichens in East African mountain forests. The study reveals that many previously thought to be single species are actually distinct entities with narrow ranges, significantly increasing the genus diversity of Leptogium.
New research suggests that genetic diversity is not a reliable predictor of species survival and highlights the importance of habitat protection in saving species. Scientists found that most genetic diversity within a genome is neutral and not correlated with overall genetic diversity.
The study found genetic similarities between rainbow trout in the northern Deschutes watershed and the southern Klamath watershed, linking two now disconnected watersheds. The researchers also discovered unexpected high levels of genetic diversity in coho salmon, particularly in smaller coastal rivers.
A study by Oregon State University found that converting electrical transmission tower bases into habitats can increase population density and diversity among wildlife, including arthropods and small mammals. The project, conducted in Spain's Andalusia region, showed significant increases in species diversity and bird populations after...
A recent study found that biodiversity is vital at regional scales, not just local ones, to maintain stable ecosystems. This research can inform conservation planning and make human communities more sustainable by promoting biodiversity.
Researchers found substantial differences in brain morphology between forest edge and deep forest butterfly species, with the latter investing more in visual information processing. The study suggests that changes in brain structure play a crucial role in speciation across environments.
Researchers describe a critically endangered bat species, Myotis nimbaensis, with bright-orange fur, found in the Nimba Mountains, a biodiversity hotspot. The discovery highlights the importance of sub-Saharan sky islands to bat diversity and conservation efforts.
Research suggests that crocodiles' slow evolutionary rate is a result of their versatile body plan, allowing them to adapt to environmental changes. This efficiency may explain why they thrived during the Cretaceous period when dinosaurs perished.
A team of researchers found that diverse biologically and culturally rich regions exhibit even greater diversity than expected. The study, published in Scientific Reports, suggests a link between complexity and diversity across different domains.
A team of researchers studied over 3,500 leaf fossils from Patagonia, Argentina, and found a surprising 92% species-level extinction rate in the region. The study suggests that despite high extinction rates, South American plant families largely survived and grew more diverse during the Paleogene period.
A comprehensive study reveals that Germany's plant diversity has been declining steadily over the past decade, affecting both archaeophytes and neophytes. The decline in species diversity averages around two percent per decade, with many common species being affected.
Scientists have long wondered how tropical species diversity formed and is maintained. A new study provides conclusive evidence that tropical biodiversity hotspots are linked to moderate and stable climates. Researchers found that species-rich regions in the tropics contain diversity accumulated during a protracted evolutionary period.
Researchers found that biodiversity hotspots like the Amazon rainforest are formed through gradual accumulation of species over time, while coldspots provide more opportunities for rapid diversification. This study reveals a paradox in diversity formation, challenging previous assumptions.
A study published in Science finds that cold environments like deserts and mountaintops are more likely to host new species than tropical regions like the Amazon rainforest. This discovery challenges the long-held assumption that diversity hotspots exist in warm, humid areas.
An international team of scientists has produced the first complete, species-level phylogeny of a major group of tropical birds known as suboscine passerines. The study used genetic markers scattered across the entire genome to describe the evolutionary history and create a framework for further questions about mechanisms that drive sp...
A well-preserved ichthyosaur species, Thalassodraco etchesi, was discovered in Dorset. The fossil is from the Upper Jurassic period, around 150 million years ago, and provides insights into Late Jurassic ichthyosaur diversity.
Researchers successfully identified all fish species in the ponds, demonstrating high accuracy of non-invasive eDNA approach. Strong positive correlations were found between eDNA quantity and actual fish biomass and abundance, paving the way for step change in future species monitoring programmes.
A recent study by the German Centre for Integrative Biodiversity Research (iDiv) has found that living near areas with high biological diversity increases life satisfaction among Europeans. The research, which analyzed data from over 26,000 adults across 26 European countries, discovered that experiencing numerous different bird specie...
A new genus and species of Loricifera have been discovered in Japan's deep sea, improving the understanding of the species' diversity. The discovery was made by researchers from Tohoku University, who found the species inhabiting areas between 177m to 1059m below the sea.
A team of researchers has created a comprehensive map of bee species globally, identifying more species in the Northern Hemisphere and arid environments. The study also reveals a bimodal latitudinal gradient pattern, where diversity increases towards the tropics and decreases towards the poles.
A new study analyzing Iberian spiders' biodiversity patterns in Spain's national parks reveals environmental factors significantly impact their distribution. The study identifies a pattern relating to the rise of temperatures and decrease of precipitation with an increase in spider endemism, highlighting potential conservation strategies.
Research at the University of Zurich reveals that host genetic differences explain most of the variation in virus community composition. Genetic diversity within species is crucial for immune system function and should be prioritized in agriculture to improve pathogen resistance.
A new analysis found that the critically endangered vaquita remains genetically healthy despite its low population numbers. The study suggests that the species' ability to survive at low numbers is not doomed to extinction and gives hope for conservation efforts.
Researchers propose a holistic approach to conservation, aiming for no net biodiversity loss between 2020 and 2030 and a 20% gain by 2050. The new targets need to prioritize ecosystems, species, genetic diversity, and nature's contributions to people.
The UN Convention on Biological Diversity needs a 'safety net' of multiple ambitious goals to curb nature's decline. The new goals should consider diverse facets of biodiversity and be developed holistically to advance multiple targets simultaneously.
New research identifies three laws to explain species diversity and abundance in ecosystems. Environmental change and variability are key drivers of fluctuations in species populations.
Researchers analyzed over 4,200 camera trap photos in Costa Rica's Braulio Carrillo National Park, finding that trait diversity within the park did not decline despite deforestation. The study suggests national parks can be more resilient than expected, particularly in terms of functional redundancy.
A study analyzing 79 plant communities worldwide found that greater species synchrony predicts less community stability. Higher species richness is associated with increased stability, but this effect is relatively small.