Articles tagged with Species Richness
Vertebrates show variation in species numbers among groups, with land animals exhibiting higher diversification rates, suggests a study by UA evolutionary biologist John Wiens. Habitat is likely a more important variable than climate or metabolic rate explaining species richness.
A new study using data from six continents provides strong evidence supporting the humped-back model (HBM) of plant species richness. The HBM theory suggests that environmental stress can lead to low plant productivity, with highly competitive species dominating at high productivity levels. The research found a very strong correlation ...
A recent study has confirmed the presence of 21 lizard species in Qatar, with some species found only in specific locations. The distribution maps will help identify areas that require urgent conservation measures to protect these species.
Research found that organic farms supported 34% more plant, insect, and animal species than conventional farms. This effect has remained stable over time and shows no signs of decreasing.
High crop species richness suppresses pest populations, indicating a positive relationship between crop diversity and biological control. The study found that crop diversity enhances the natural enemy-pest ratio, leading to improved pest control on EMS using microlandscape.
Researchers pinpoint high conservation priority areas worldwide, revealing stark differences with existing protected zones. The study's findings highlight the need to reassess global knowledge of conservation resources to effectively protect vertebrate species.
Researchers from LMU Munich uncovered well-preserved fish fossils, shedding light on the gobioid order's evolution and classification. The discovery of perfectly preserved otoliths allowed for a genetic code-like analysis, placing a new species in the Butidae family.
Two new species of woodlizards were found in the Peruvian jungle, increasing the country's biodiversity. The newly described lizards, Enyalioides azulae and Enyalioides binzayedi, share a similar territory with slight differences in altitude ranges.
New research uses satellite images to estimate species richness and turnover, achieving nearly 100% accuracy. The method could improve biodiversity monitoring and conservation efforts by reducing costs and increasing efficiency.
Researchers discover that evolutionary diversity can be a reliable proxy for measuring biodiversity, including species richness and trait diversity. This finding could help conservation organizations better protect threatened species globally.
A recent study by UCLA researchers found that beetle diversity exceeds that of crocodiles, contradicting the long-held theory that older lineages produce more species. The team proposes that adaptive zones, which determine a lineage's ecological limit, play a crucial role in shaping species richness.
Researchers at University of York and University of Canterbury disprove the accepted theory of nestedness, finding instead that a species' number of mutualistic partners is a better predictor of individual survival and community persistence. This challenges the idea that ecological communities exhibit nested structures.
A statewide assessment of stonefly diversity in Ohio has revealed at least 102 species, with many adapted to survive warm summer water temperatures. The study's findings will inform conservation efforts, prioritizing rare and threatened species like the Atlantic Needlefly.
A recent study analyzed data from tree species censuses and fossil evidence to chart diversity in rainforests. The results show that variation in species richness among families is very similar across tropical forests, suggesting that community structure in rainforests cannot be attributed to stochastic factors.
A massive set of mammal data from GBIF helped quantify the influence of environmental factors on species presence. The study found that climate is the biggest factor influencing mammal species communities at larger scales, while land use and land cover become more important at smaller scales.
A team of ecologists challenges the idea of a universal species-area relationship, finding that geometric constraints and biological effects shape the connection between species richness and plot size. They discovered specific geometric limits that restrict how quickly the number of species can increase with area.
A new study published in Science journal challenges the long-held hypothesis that a relationship exists between plant biomass production and the number of coexisting plant species. The research, led by Iowa State University scientists, found no evidence to support this correlation, contrary to decades of previous studies.
A recent study by Stanford University researchers found that preserving just 9 key sites could protect habitat for 84% of all marine mammal species on Earth. The study identified critical conservation locations off the coasts of Mexico, Canada, Peru, and other countries as areas with high species richness.
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 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.
The Biodiversity of Saba Bank collection provides critical information on the benthic communities and reef fish that inhabit the Saba Bank. The research reveals six new species potentially new to science collected from one of the largest coral reefs in the Caribbean, highlighting the need for marine protected areas to protect this uniq...
Researchers have created a family tree of 2,000 protea plant species, revealing that two regions – South Western Australia and the Cape Floristic Region – are experiencing accelerated speciation rates. This surge is linked to climate change approximately 10-20 million years ago, which led to hotter, drier conditions and vegetation fires.
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.
The study revealed 57 coral species, with higher diversity in smaller patchy areas and a focus on protecting larger conservation units. The authors recommend marine reserves to protect high-biodiversity areas, such as the islands of Isla Galera, Isla San Telmo, and Isla Mogo Mogo.
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.
Researchers at Woods Hole Research Center are using laser remote sensing (lidar) to study biological diversity and predict bird species richness. Lidar data provides unique measurements of vegetation structure, which is linked to habitat complexity and animal species richness.
A new study by Stanford University researchers challenges the 'biodiversity hotspot' approach to conservation, finding that only 16% of mammalian species overlap across three types of hotspots. The authors argue that protecting fewer sites could lead to neglecting endangered and endemic species.
The study analyzes data on 9,500 bird species and finds that most have small geographic ranges, while the northern hemisphere shows high variation. Biodiversity peaks in tropical regions, and there's a link between species richness and range size, with high biodiversity areas having smaller ranges.
A recent study on African bird fauna found that large-scale patterns of species richness and endemism are robust to changes in species concepts. The analysis identified complexity within long-recognized centers of endemism, with certain areas acting as 'species pumps'.
A recent study published in Ecology Letters explores the complex relationships between biodiversity and ecosystem function. The research reveals that both high and low levels of biodiversity can have negative consequences for ecosystem health, with intermediate levels often being the most beneficial.
A new world map of plant biodiversity has been published, providing a common geographical standard for global nature conservation strategies. The atlas reveals the most species-rich areas on earth, with Borneo's lowland rainforest standing out as the most diverse, containing around 10,000 plant species.
A long-term study found that habitat fragmentation has a far-reaching impact on rainforests, increasing local extinction rates and altering species richness. To maintain diversity and dynamics, Amazonian nature reserves will need to be very large to withstand human disturbances.
A new study by Imperial College scientists found that the power law used to determine the relationship between plant species and land area is not scale-invariant. Species richness accumulated rapidly at intermediate scales, rather than being constant as previously believed. This finding has significant implications for conservation stu...
A study by BIODEPTH found that reducing species richness in plant communities results in decreased productivity, higher soil nitrate concentrations, and altered ecosystem processes. The findings suggest that preserving and restoring biodiversity is crucial for maintaining grassland productivity.