Articles tagged with Ecological Niches
A comprehensive review by Bielefeld University researchers reveals that urbanisation significantly impacts animal social behaviour, including changes in communication, aggression and group stability. The study found that 92% of reviewed papers report a significant effect of urbanization on social behavior.
A study led by Dr. Frédérik Saltré suggests that sterilizing 22% of adult females annually could stabilize the population at an estimated cost of $34 million over 25 years. This approach prioritizes both animal welfare and ecosystem health, offering a humane solution to the unsustainable koala numbers.
Dinosaurs operated with a 'latchkey kid' approach, with young offspring independent and foraging alone after just a few months. This led to an increased number of functional species in dinosaur fossil communities compared to modern mammals.
Researchers at OIST found that only cyanobacteria Trichormus azollae are true symbionts of Azolla ferns, with their genomes showing extreme decay and loss of genes. The study sheds light on the genomic impacts of symbiosis and its potential applications in food security.
Researchers found that humans increased their ability to exploit different habitat types in Africa around 70,000 years ago, paving the way for a successful dispersal into Eurasia. This ecological flexibility allowed human groups to adapt to challenging climates and overcome geographic barriers.
Researchers at Washington State University discovered that juvenile European green crabs can cause significant damage to shellfish, native eelgrass, and the ecosystem. The study found that even young crabs can crack into immature shellfish with ease, challenging current removal techniques.
A new study found that some bird species with large geographic ranges and big brains are actually more susceptible to climate change than previously thought. Researchers analyzed data from citizen scientists and found that birds adapted to narrow climate niches, such as the Arctic, are at higher risk from climate change.
New research suggests that conservation efforts can better protect bird species at greatest risk from climate change by understanding the specific climatic conditions they need to thrive. The study found that species with narrower climatic niches are more susceptible to population declines.
Researchers found that bats' forelimbs and hindlimbs evolved together due to correlated bone shapes, unlike birds. This suggests that bats may struggle to adapt to new environments. In contrast, bird species show little correlation between wing and leg shapes, enabling them to occupy a wider range of ecological niches.
A recent study by American Institute of Biological Sciences reveals that nonnative plant species are a major force behind the growing number of insect invasions worldwide. The research challenges traditional assumptions and highlights the importance of controlling the spread of nonnative plants in mitigating biological invasions.
Researchers found that antlions have a highly effective and complex venom system, producing multiple venom proteins and digestive enzymes to overpower large and defensive prey. Unlike previously thought bacteria-assisted venom production, antlions are free of bacterial symbiotic partners.
An international team of evolutionary biologists investigated the genomic underpinnings of plant adaptation to cold environments. The study found that polyploids exhibit genomic structural variants with signals for possible local adaptation more frequently than diploid species.
A recent study found that tree species can sustain life in temperatures higher or lower than where they are currently growing. The research revealed that trees have overlapping potential niches that extend beyond their realized niches, allowing them to expand their ranges. This new understanding challenges current methods for predictin...
A UC Riverside paper has opened the door to understanding more about life's beginnings and early evolution. The study weaves together data from ancient rocks, genomic studies of modern organisms, and recent breakthroughs about the evolving chemistry of the early oceans, atmosphere, and continents.
A research team finds that local community members are indispensable partners in enhancing community engagement in repairing damaged ecosystems. Local values and attitudes play a crucial role in promoting sustainable ecosystem management practices.
A new study reveals the crucial roles of fish and invertebrates in coral reef health, including nutrient boosting and predator protection. However, parasitic snails and destructive crab species also pose a threat to these vital ecosystems.
Researchers compared human hearts with those of great apes, discovering a more compact muscle structure in humans, related to greater cardiac function. This finding supports the hypothesis that human heart evolved to meet higher demands of human physiology, such as larger brain size and physical activity.
A new model predicts a decrease in species diversity by 39% due to climate change, compared to traditional models' forecast of 54% loss. The study reveals that some species may better tolerate climate change than expected, with 49% of species living in climate niches that could expand under warming conditions.
A global research team suggests that all eight baobab species originated in Madagascar due to genomic analysis. The most likely scenario is that baobabs dispersed from Madagascar when sea levels were lower, but rising sea levels could hinder their expansion and threaten their populations.
A new study reveals that competition between species played a major role in the rise and fall of hominins. The research found that the Homo lineage experienced an unprecedented number of new species emerging, contradicting traditional views on evolutionary patterns. Technology, such as stone tools and fire, may have driven this process.
Scientists have discovered a new, rare osmiine bee species in the French Alps with an unusual geographic distribution spanning over 2000 km to Turkey and Northern Iraq. The species has unique ecological characteristics, including distinct nesting behavior in dead wood.
A study models habitat suitability for medically relevant black flies in four German federal states, predicting an increase in their population due to climate change. The findings suggest that the warming temperatures and changing land use could promote the growth of species with a broad niche, leading to more frequent occurrences.
A recent study by University of Helsinki researchers found that early humans occupied diverse environments beyond savannah-grasslands when dispersing out of Africa. This challenges the previous assumption that humans required specific habitats and suggests they were more ecologically versatile than thought.
A team of scientists led by Colleen Smith found that specialist bees focus on the most abundant plant species in an ecosystem. The study suggests that plant abundance could be a mechanism promoting specialization and speciation among bee species.
Current measures to protect grasslands in the Qinghai-Tibetan Plateau are damaging the ecosystem and should be stopped. Small burrowing mammals, like the plateau pika and zokor, play crucial ecological roles in maintaining ecosystem health and biodiversity.
Researchers found that wolf spider species in Nebraska exhibited similar diets, with many eating the same types of prey. This suggests a complex food web where predators are not just competing for resources, but also engaging in cannibalism to regulate their populations and stabilize the ecosystem.
A new study reveals that different species of bacteria colonize specific areas on diatoms, reflecting their metabolic properties. The findings provide insight into the complex interactions between algae and bacteria in marine environments.
A German-Dutch research team has created the first map of the Microverse, redefining microbial niches. Generalists, which can cope with a wide range of conditions, dominate most habitats, while specialists have more specific environments and smaller genomes.
Researchers found that seabird species have unique wind tolerance strategies, with some flying fast to counteract wind drift. Albatrosses can fly in most storm conditions, while tropical species use special avoidance tactics.
A new study reveals that ancient chimaeras were suction feeders, contrary to their modern shell-crushing behavior. The research, led by the University of Birmingham, analyzed a rare three-dimensional fossil and found evidence supporting this alternative feeding method.
Researchers analyzed coyote diets and movement in Cape Breton Highlands National Park to determine why a lone hiker was attacked. The study found that coyotes relied on moose due to resource scarcity, adapting their behavior to exploit this unusually large food source.
Forests with multiple tree species have been shown to be more productive, as different species fill distinct niches and compete less. Additionally, genetic diversity within each tree species also promotes forest productivity by increasing resource use efficiency and reducing damage from herbivores and fungi.
A study reveals that porcini mushrooms have evolved in different ways across the globe, with local ecological factors playing a stronger role in maintaining genetic distinctiveness than genetic flow. The findings challenge traditional notions of species development and suggest multiple evolutionary strategies for this organism.
Two closely related Drosophila species, biauraria and triauraria, coexist due to differences in seasonal occurrence and habitat use. Hybridization between the species is possible, despite reproductive interference mechanisms.
Researchers from Trinity College Dublin have identified several new species of sunbirds, including the Wakatobi Sunbird, found on tiny Indonesian islands. The study reveals unique evolutionary processes and adds to our understanding of the importance of biodiversity in this region.
New study reveals that subarctic cave bacterial communities are more diverse and complex than surface soil ones, but climate change poses a significant threat to these unique ecosystems. The scarcity of nutrients in caves drives bacteria to cooperate with each other, which may be affected by global warming.
A new study found that North American mammal communities have become more than twice as homogenous as they were 10,000 years ago, primarily due to early human hunting and farming activities. The accelerated homogenization is likely linked to the spate of large-mammal extinctions, which increased similarity among remaining species.
Researchers have discovered how sea cucumbers produce defensive chemicals using genome mining techniques. The animals' unique ability to biosynthesize toxins has been found to be linked to the diversion of a sterol-producing enzyme, resulting in the production of valuable medicinal compounds.
A study comparing whole genomes of several mustelids, including the tayra and wolverine, identifies multiple sources of genomic variation contributing to species-specific traits. The research sheds light on how these adaptations evolved in response to different ecological challenges.
A study has discovered that humans are disrupting a fundamental pattern in ecosystems, which dates back at least 66 million years. The U-shaped relationship between diet and size in modern land mammals has been found to span across multiple vertebrate groups, including birds, reptiles, and fish.
Human activity on Hainan Island is causing changes in the body shapes and diets of tropical birds, resulting in biotic homogenisation. Despite efforts to protect biodiversity, the island's unique ecosystem is being affected by large-scale economic and land-use changes.
Researchers found that livestock grazing had no negative impact on snow leopard distribution or density, and the species can coexist due to their separate ecological niches. The study suggests a more nuanced approach to conservation and land use, prioritizing the preservation of rocky mosaics.
A new study found that human-caused bird extinctions lead to the loss of ecological roles, including pollination and seed dispersal. Introduced alien species do not fill these gaps, highlighting the disproportionate impact of human actions on biodiversity.
Researchers found that in dry years, birds funnel into riparian environments due to increased greenness, leading to overcrowding and decreased bird populations. The study highlights the importance of understanding how birds respond to climate change for conservation purposes.
Recent study reveals that non-indigenous tropical species are occupying 'empty niches' in the Eastern Mediterranean Sea, altering ecosystem functioning. The findings suggest that these species are successful invaders due to their distinct biological traits, rather than direct competition with native species.
Research by Washington University in St. Louis explores the collision of island and mainland adaptive radiations in neotropical anoles, finding that island species can diversify greatly on the mainland. Contrary to traditional thinking, islands are not evolutionary dead ends but rather cauldrons of innovation and diversification.
A unique form of English rewilding is emerging as domesticated and scaled-down compared to global efforts. This approach requires human intervention to restore ecological function and increase biodiversity.
Researchers found that bats with high hearing sensitivity to low frequency sounds are more sensitive to prey sounds, such as frog and katydid calls. This suggests that differences in hearing abilities may be a key factor in the diversity of bat species in tropical forests.
Research at Washington University in St. Louis reveals that white clover's chemical defense against insect pests comes from both of its parental species, not just one as previously thought. The plant's ecological success can be attributed to this cyanogenesis process.
A recent study by a FAU team has discovered microplastics in every single mollusc examined from the Svalbard archipelago, including up to 184 particles of eight different types of plastic. The impact on the Arctic ecosystem is still unknown, but laboratory studies suggest that microplastics can cause inflammation in molluscs.
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.
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 analyzed historical climate data to find that suitable climates for humans have remained largely unchanged since the mid-Holocene. By 2070, an estimated 1-3 billion people may live under warmer climate conditions deemed unsuitable for human life.
Researchers found invasive plant species can change their ecological niches to thrive in new continents and climates, challenging traditional assumptions. This shift has major consequences for predicting invasive species distribution and responses to climate change.
Ecologists have developed a new framework for understanding relationships among animals, plants, and their environments, enabling predictions about species' reactions to changing climates. The periodic table of ecological niches, built from decades of fieldwork data, reveals convergent evolution in lizards across continents.
Research finds that human activities such as urbanization and forest fragmentation alter fruit bat habitats, increasing the risk of Hendra virus transmission to humans. The study highlights the importance of preserving ecosystem integrity and habitat suitability to mitigate this risk.
Researchers at International Institute for Applied Systems Analysis developed a model that elucidates the natural patterns of biodiversity in tropical forests. The study shows how physiological differences and competition for light lead to a large number of species coexisting, challenging traditional ecological theory.
Researchers found that bird species with increasing populations occupy a broader range of climate conditions, while declining species lose their range. This discovery has practical applications for conservation biologists, who can use the new findings to develop more accurate habitat protection strategies.
A new lizard species, Anolis landestoyi, has been found in the Dominican Republic, revealing similar evolution on separate Caribbean islands. The discovery adds support to the concept of replicated adaptive radiation in anoles.
Researchers at University of Waterloo developed a new statistical tool, nicheROVER, to analyze multiple ecological niche parameters and identify overlap between species. This allows for more informed predictions about the impact of invasive species on native ecosystems.