Articles tagged with Species Richness
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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A research team from the University of Göttingen found that vanilla agroforestry systems have advantages for both humans and nature, particularly when planted on fallow land. However, price fluctuations pose a challenge to sustainable cultivation.
A new study estimates that there are approximately 73,300 tree species on Earth, with 9,000 yet to be discovered. The majority of these unknown species are rare and endemic to specific regions, particularly South America.
A global collaboration of scientists has estimated that there are approximately 73,300 tree species in the world today, with more than 9,000 still undiscovered. This estimate is based on a massive dataset of over 38 million trees spanning 90 countries and 100 territories.
The English Channel prevents many rockpool species from reaching the UK due to unfavorable ocean currents. This could lead to a decrease in intertidal wildlife richness in the UK as warmer-water species fail to replace threatened ones. As climate change causes sea temperatures to rise, this barrier may prevent species from adapting.
Despite over 200 restored wetlands in Denmark, botanical diversity remains low, with only 9.5 species per four square meters found in the studied areas. High nutrient input from agriculture continues to affect plant species dispersal and immigration, making it a significant barrier to increased biodiversity.
Researchers found that species-rich forests produce more wood and are less affected by extreme weather conditions. The main reason for this stability is the diversity of functional characteristics among tree species, which helps counterbalance fluctuations in climate.
A recent study in Frontiers in Marine Science has found over 100 underwater animal species thriving on a 2,200-year-old Mediterranean shipwreck. The 'ecological memory' of the wreck provides valuable insights into how marine animals colonize empty sites and form diverse communities.
A group of Croatian students used photographs from iNaturalist to describe a new species of pygmy grasshopper, challenging traditional methods. The study highlights the potential of citizen science and encourages people to engage with nature to raise awareness about conservation.
Climate change has already altered 20% of the Earth's landscapes, and this trend is set to triple under business-as-usual emissions growth. The research found fundamental shifts in life zones, with boundaries shifting poleward and towards higher elevations, affecting tropical and temperate climates.
A new study by researchers at the University of Copenhagen found that the greatest increase in marine biodiversity on Earth occurred due to changes in climate cycles, rather than an asteroid explosion. Fossil analysis revealed a shift towards colder climates around 469 million years ago, leading to the blooming of marine life.
A study found that large herbivore biomass is only present in African reserves, with a close correlation between plant productivity and consumer biomass. In contrast, non-African ecosystems have low herbivore densities, even in protected areas.
A new study reveals that spring soundscape acoustic diversity and intensity are declining due to changes in bird communities. The research suggests that reductions in natural soundscapes may be the primary mechanism through which population declines impact humans.
Pollinators contribute significantly to global food production, particularly for small-scale farmers who rely heavily on these services. The author emphasizes the need for increased support and research efforts to maintain biodiversity and improve crop yields.
Researchers found that high biodiversity enhances ecosystem functions by 20%, with environmental heterogeneity significantly boosting this positive impact. Species richness was more important for ecosystem functioning than species turnover in African ecosystems along Mount Kilimanjaro's elevational gradient.
A new study found that birds and mammals evolved into new species at higher rates where the land has risen most over the past three million years. This effect was found to be greater than historical climate change, present-day elevation, and temperature in driving speciation.
Researchers found that agri-environmental schemes can help maintain species richness across flowering fields and seminatural grasslands in Germany. The study suggests a combined network of both is necessary to maximize biodiversity conservation efforts.
Climate change may cause geographical mismatches between crops and their pollinators, threatening crop yields. The study found potential declines in the distribution of some wild bees that pollinate tomatoes, particularly in the eastern United States.
Researchers found significant distribution disparities in coral reef fish species across trophic groups, with a disproportionate number of planktivores in the IAA. Planktivore species richness was highest near Indonesia and the Solomon Islands, but declined sharply outside the region.
A study found that plant species richness reduces viral infections in both wild and cultivated meadow environments. In contrast, the number of virus species increases near agricultural fields due to confusing disease regulation mechanisms.
A study found that a high diversity of flowering plants can compensate for the negative effects of insecticides on wild bee reproduction. The research team discovered that red mason bees reproduced successfully when kept in enclosures with diverse flower mixtures compared to those with only oilseed rape.
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.
A study from Lund University found that population density, not vegetation cover, has the biggest impact on species richness of pollinators in residential areas. Urban environments with high population densities have fewer species of wild bees and hoverflies.
A new checklist of New Guinea's 13,634 vascular plant species has been built by 99 scientists from 56 institutions and 19 countries. The list contains 20% more species than Madagascar or Borneo, with many endemic plants found only in the region.
A study on the BEF-China experiment found that directed species loss in high-diversity ecosystems leads to significant reductions in forest productivity. The researchers simulated both random and directed species extinction scenarios and analyzed the data, revealing that diversity alone does not protect against losses.
The study reveals that species richness is largely determined by the evolution of animal niches and their subsequent dispersal across the continent. The researchers used models to calculate species richness in South America and found a clear pattern following natural habitats or vegetation biomes.
A new study finds that biodiversity loss is causing a smaller, less diverse snake community in the tropics. The decline of tropical snakes is an 'invisible' outcome of biodiversity loss and has upward effects on higher-order predators.
A new study suggests that global biodiversity levels could be lower than previously thought due to the long-lasting impact of abrupt land changes. Biodiversity assessments may be underestimating species loss at sites with recent disturbances, such as deforestation or agriculture intensification.
A new study reveals an unusual diversity gradient in the Amazon Basin, with higher species richness in the western portion than expected. The research, led by scientists from France and Brazil, analyzed data from 97 subdrainage basins along the main stem of the Amazon and its tributaries.
A study by NRRI scientist Chris Filstrup found that the evenness of species distribution is a stronger signal of ecosystem function than species richness. This discovery has implications for conservation practices and understanding biodiversity loss impacts, especially in the face of climate change stress.
A team of scientists mapped global biodiversity change, revealing greater changes in species composition in marine systems than on land. The study highlights the importance of protecting regions with high biodiversity loss rates and improving monitoring for conservation strategies.
Research team discovers that habitat loss causes double damage to biodiversity, with local extinctions linked to reduced ability for species to recolonize neighboring patches. Spatial processes and metacommunities play a key role in this phenomenon.
Research in Ethiopian sacred church forests reveals that human disturbances, such as buildings and clearings, significantly reduce forest density and species richness. Culturally sensitive conservation strategies are recommended to protect these forests, including restorative planting and protection of large trees.
A study of 32,000 butterflies found that semi-natural grasslands with surrounding forests support the highest number of butterfly species, while agricultural fields have limited resources. The results highlight the importance of preserving landscapes with diverse habitats to ensure the survival of pollinators.
A recent study of native wild bees in Mexico's tropical dry forest found that preserved vegetation areas support significantly greater bee richness and diversity. Urbanization and agriculture lead to major shifts in species composition, threatening local extinctions.
Researchers from Friedrich-Schiller-University Jena studied the correlation between tropical moth size and elevation, finding clear patterns in their measurements. Moths from two species-rich families increase significantly in size at higher elevations, contradicting expectations under the Bergmann rule.
A recent study found that species-rich subtropical forests can absorb up to twice as much carbon as monocultures, showcasing the importance of biodiversity in forest productivity. Reforestation with a variety of tree species is recommended to promote both ecological and economic benefits.
A large-scale forest biodiversity experiment in China found that species-rich forests stored an average of 32 tons of carbon per hectare, while monocultures averaged only 12 tons. The study suggests that a mix of tree species is necessary for optimal carbon sequestration and climate protection.
A Brazilian study found that climate change could lead to the extinction of up to 10% of frog and toad species endemic to Brazil's Atlantic Rainforest biome within the next 50 years. The researchers used spatial distribution data and ecological niche models to predict which areas would be favorable for each species.
Research by Hokkaido University found that abandoned farmlands, particularly those without surrounding forests, benefit wetland and grassland birds. The study also revealed that landscape structure affects bird communities differently.
New studies suggest that biodiversity might be remaining steady globally, even as species go extinct and decline locally. However, other research finds a mix of stability and increase in species richness at various locations worldwide.
Researchers have developed a new method that can accurately estimate biodiversity at a global scale, up to 10 orders of magnitude. The study used the 1999 Great Britain Countryside Survey dataset and tested over a dozen methods, with one model providing estimates within 10% of the true value.
Scientists have discovered two new primitive species of earthworm, Drawida polydiverticulata and Drawida thomasi, in the Western Ghats mountain ranges in Kerala. The species are part of the genus Drawida, which has an important centre of speciation in the state.
Researchers propose a new approach to evaluating biodiversity, focusing on species migration and abundance within ecosystems. By analyzing these dynamics, experts can better understand ecosystem responses to environmental changes and develop more effective conservation strategies.
Researchers found that Tibetan Alpine grasslands are vulnerable to climate warming, with temperature changes destabilizing the ecosystem. The study suggests reduced forage production in drought years and increased biomass production in wet years, posing consequences for ecosystem services like climate regulation and water conservation.
A new study highlights the urgent need for global action to limit temperature increases to 1.5°C due to its critical role in preserving marine ecosystems and limiting species turnover for the fishing industry. The results show that exceeding this target could lead to a three-fold decline in marine biomass.
A recent study contradicts earlier claims that declines of pollinator species richness are slowing down in Europe. Dr Tom J. M. Van Dooren found no robust evidence for a decelerating decline across multiple taxonomic groups and European countries.
A new map reveals that humans have seriously altered 97% of the planet's most biodiverse regions, including tropical rainforests. The study found that environmental pressures are widespread, but some nations and countries with strong governance are showing signs of improvement.
The new sixth volume of Research on Chrysomelidae features five research articles on the latest findings about the 37,000 leaf beetle species. The studies cover a new species of potentially dangerous legume-feeding pest and provide new information on life cycle, ecological interactions, species richness factors, and taxonomy.
Scientists studied over 15,000 sites across the US, finding nitrogen deposition exceeded critical loads for loss of plant species richness in 24 percent. The study highlights the impact of atmospheric nitrogen deposition on ecosystems, with effects more pronounced in acidic soils and dry climates.
A novel study has found that higher biodiversity reduces infectious disease severity in a Tibetan alpine meadow, supporting the dilution hypothesis. Artificial fertiliser weakens this effect, increasing disease load.
Biologists at the University of York have found that there is no simple relationship between insect diet and diversity, with some plant-feeding groups being incredibly rich while others are not. The study suggests that other factors play a greater role in explaining diversity.
A recent study on diving beetles found that globally, these animals have evolved towards a small number of regularly-spaced body sizes, indicating functional similarity among species. This suggests that evolution drives self-organizing processes into clusters of functionally similar groups.
A recent study investigates multiple phylogenetic diversity metrics and discusses their role in preserving biodiversity. The study highlights the challenges of calculating these metrics due to data availability, but also notes that as more sequence data are generated, accurate calculations will become increasingly routine.
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.