Articles tagged with Evolutionary Ecology
A team of biologists found that human pelvis sex differences are similar to those in chimpanzees, suggesting an ancient origin. The magnitude of these differences is only half as large in chimpanzees, indicating that modern humans inherited this pattern from earlier mammals.
Research by the University of Bristol team found that tropical paper wasps provide crucial support to extended family members, including helping neighboring nests. By observing twenty thousand baby wasps and their carers, the team discovered that workers become less useful as colony sizes rise due to a surplus of help.
A new study identified bird species with the potential to transmit Lyme disease bacterium to feeding ticks, flagging 21 new species for surveillance. Bird traits such as diet composition, migration distance, and life history features were used to predict competence in spreading Lyme.
Archaeologists are addressing modern-day issues like biodiversity conservation and climate change by analyzing past data and solutions. The field has evolved to a highly scientific approach using advanced instrumentation and computers.
Researchers assess opportunities to improve nature monitoring, increase access to green spaces, and reduce pollution with robotics. However, they also warn of potential negative impacts on the environment, including waste generation and social inequalities.
The study explores how independent transitions of marine fish species into different water column habitats result in the recurrent evolution of similar body shapes. This suggests that limited sets of high-fitness solutions exist due to environmental constraints.
The article argues for a revitalized view of history in ecology and evolution, proposing nine understandings of history to generalize findings and observe scientific laws. These 'flavors' include contingency, chance, chaos, capriciousness, approach, constraint, construction, turnover, and template.
The SPI-Birds initiative combines breeding population data of 1.5 million individually recognisable birds to answer ecology and evolution questions. The project aims to inspire other research communities to create their own standards, promoting FAIR data use.
Scientists have discovered an extremely rare species of cymothoid, Elthusa splendida, from a museum shark specimen in the East China Sea. The find expands the species' range to almost opposite sides of the globe, with only five previously documented specimens.
Researchers uncover fossil specimens of ancient walruses in Orange County, revealing five distinct species, including two new species without tusks. The study provides insights into the dental and tusk evolution of walruses, suggesting that feeding ecology played a key role in the origin and early evolution of tusks.
The article discusses the benefits of combining intensive lab experiences with online learning for students studying ecology and evolution. A short but intensive field period can enhance student interpersonal skills, offer more flexibility, and provide a better testing experience.
A study found that reducing nitrogen levels can harm plant biodiversity by displacing species adapted to low nutrients. Researchers advocate for an EU Phosphate Directive to address this issue and protect threatened plant species.
A study of common dolphins in the Hauraki Gulf found declines in carbon values, suggesting a decrease in primary productivity or changes in prey selection. The research highlights the need for careful management of marine parks and surrounding environments to prevent overfishing and nutrient runoff.
A lack of coordination among stakeholders hinders biodiversity monitoring, but integrating contributors can improve data collection. This is crucial for identifying factors leading to declines in biodiversity and creating sustainable conservation strategies.
A team of scientists developed machine-learning models to differentiate among several existing Amherstieae legume genera and classified existing pollen accurately over 80% of the time. The results support previous hypotheses suggesting that Amherstieae originated in Africa and later dispersed to South America.
A new study finds that infectious diseases in livestock can lead to increased methane emissions, exacerbating climate change. Ruminant animals infected with intestinal worms or suffering from mastitis release up to 33% and 8% more methane per kilogram of feed or milk produced.
Research found that only 12% of ecosystem functioning variance can be explained by plant traits, highlighting the complexity of long-term ecosystem changes. Plant biomass production and pollination patterns varied greatly among years and communities.
A new study finds that Megalodon's estimated body length of up to 15 meters exceeds the general size limit for non-planktivorous sharks, which typically reach 7 meters. The research proposes live-bearing reproductive strategy and cannibalistic egg-eating behavior as possible causes for gigantism in lamniform sharks.
Researchers predict that Páramos ecosystems in the Andes will shrink substantially without conservation efforts, threatening biodiversity and human populations. The study focuses on Espeletia species, which are highly diverse and adapted to extreme conditions, but may not evolve fast enough to keep up with climate change.
A collaborative team of 28 professors from various biology fields will integrate recent discoveries about microbial symbiosis and its impact on evolution and ecology.
Scientists estimate nature-based solutions for agricultural pest control deliver $14.6-19.5 billion annually across 23 countries. Non-chemical crop protection (biological control) outperforms traditional Green Revolution methods, promoting rural growth and prosperity.
A new study reveals a large-scale change from predatory fish to stickleback dominance in the Baltic Sea, threatening local ecosystems. The shift is linked to eutrophication and climate change, and its effects include reduced recruitment of pike and perch.
A new study highlights the critical importance of partnering with indigenous people and local communities in tropical forest restoration. The research estimates that 294.5 million people live within areas with good potential for forest restoration, and over one billion people live nearby such land.
A collaborative research group from Kyoto University investigates how animals balance information sharing with disease risk to form social networks. They propose an integrative framework that incorporates deleterious forms of social transmission, like infectious diseases.
A new study by an international team of researchers found that biodiversity experiment findings are reliable and applicable to the real world. The study analyzed data from two large-scale experiments and compared them with equivalent 'real-world' sites, showing that previous conclusions were supported.
In unpredictable environments, brood parasites spread their reproductive risk by targeting more and diverse host species. This bet-hedging strategy allows them to adapt to changing conditions and increase their chances of offspring survival.
A review paper examines the influence of systemic inequalities on ecology and evolution, finding that racism reduces biodiversity, increases urban heat island effects, and augments climate crises. The authors advocate for environmental justice and anti-racism practices to transform biological research and conservation.
A recent US long-term ecological site study suggests that the so-called 'insect apocalypse' may be exaggerated, with many areas showing little to no overall change in insect abundance and biodiversity. However, certain species remain in decline, particularly for key ecosystem services like pollination and natural pest control.
The Undinarchaeota, a previously unknown phylum of aquatic Archaea, have been found to likely depend on partner organisms for growth, while also conserving energy through fermentation. Their discovery provides new insights into the diversity and evolutionary history of Archaea.
Only 6.5% of world's pristine tropical forests are formally protected, leaving rest at risk due to lack of focus on forest intactness and quality in global conservation strategies. New targets for protection, restoration, and reduction of human pressure are urgently needed to conserve these ecosystems.
Seabirds produce guano that serves as a fertilizer and contributes significantly to coastal and marine ecosystems. The researchers estimated the value of guano production at around $473 million per year, with nutrients deposited by seabirds worth an additional $1 billion annually.
A study by Max Planck Institute researchers found that multicellular clusters can promote cooperative interactions between organisms, leading to a previously unknown mechanism driving the evolution of mutual aid. This discovery challenges the traditional view of evolution as a competition for resources.
A global transition to agroecological production is crucial to reduce threats to biodiversity and support ecosystems. Agroecology can enhance biodiversity, promote connectivity between protected areas and increase species' ability to respond to environmental threats.
A species of crab, Sesarma reticulatum, is reshaping the landscape of marshlands in the southeastern US. The crab's burrowing and grazing activities lead to erosion of creek heads, accelerating marsh drainage and altering ecosystem dynamics.
Researchers created a basic model of an ant body using ellipsoids to understand center of balance and evolution among body segments. The study reveals how ants maintain balance despite large head sizes, with implications for bio-inspired machine design.
A complete time-calibrated phylogeny for European butterflies has been published, providing a tool for evolutionary and ecological research. The study offers insights into the ancestral relationships and history of divergence for all 496 species.
Researchers found that many plant pathogens can specialise on particular temperatures or host plants, but also have wide temperature or host ranges. This study provides key insights into the co-evolution between pathogens and their hosts, allowing scientists to better understand where and when pathogens could strike next.
A study found 64 pesticide residues in milkweed, contaminating the main food source for monarch butterflies in the west. Pesticides were present at levels harmful to monarchs and other insects, raising concerns for the already critically small western monarch population.
A new study found that mosquitoes are most likely to transmit malaria in the early evening when people are exposed, followed by midnight and morning. This shift in biting behavior could reduce the effectiveness of bed nets in preventing malaria.
The False Coral Snake has been observed displaying 10 different defensive behaviors in a laboratory setting, including dorsoventral flattening, body vibrations, and erratic movements. These behaviors may be linked to mimicry with venomous snakes or physical constraints related to body size.
A new framework understanding how light and noise pollution impacts wildlife has been developed by worldwide experts in ecology and physiology. Sensory danger zones have been identified as areas where sensory pollutants influence animal activity, posing a threat to imperiled species and urban wildlife.
Researchers at Karolinska Institutet have discovered a detailed blueprint for the development of the human cortex in the ancient lamprey brain, shifting its origin to over 500 million years ago.
A recent study by botanist Cody Coyotee Howard uncovered two ranges of optimum bulb diameter driven by natural selection, with larger bulbs thriving in warmer climates. The research has significant implications for understanding plant evolution, agriculture, and horticulture.
Research reveals that animals like goats, termites, and elephants can suppress fires by altering plant consumption and habitat structure. Grazing animals can increase wildfire severity if not managed strategically, while insects stimulate plant defenses against flames.
Scientists have found that gene loss played a crucial role in the evolution of animals, particularly in deuterostomes and ecdysozoans. The study revealed unprecedented levels of gene loss in these lineages, contradicting the assumption that evolution leads to increased complexity.
A new ancient DNA study reconstructs the genetic history of Mediterranean islands, showing complex patterns of immigration and trade. The research reveals distinct ancestry profiles for Sicily, Sardinia and the Balearic Islands, tracing migration routes from Africa, Asia and Europe.
A new study reveals that the rapid evolution of Darwin's finches and Hawaiian honeycreepers was linked to their beaks and skulls. The researchers found that these birds had a stronger association between their beaks and skulls than other bird lineages, allowing for more versatile evolution but constrained along specific directions.
A study reveals that microbial communities in reproductive tracts of males and females can impact fertility, behavior, and evolution. These microbiomes may also influence mate choice, sexual health, and the origin of new species.
Researchers have found that certain microbes affect sperm quality, fertilization, embryo implantation, and reproductive health across various animal species. The study also sheds light on the role of the reproductive microbiome in sexual selection, mating systems, and sexual conflict.
Researchers from over 70 countries develop a comprehensive road map to address the pressing issue of declining insect populations, driven by human-induced stress factors such as habitat loss and climate change. The plan outlines immediate, mid-term, and long-term actions to prioritize conservation efforts and restore ecosystems.
A study published in Nature Ecology & Evolution finds that rare species are organized in groups to coexist with more abundant species, avoiding competitive pressure. This organization may be a key to understanding the persistence of biodiversity in ecosystems.
Researchers warn of potential negative impacts of offshore renewable energy on marine life, including head trauma and hearing loss. The study suggests that consideration should be given to the impact of technologies like wind turbines and wave energy converters on marine animals before implementation.
Climate change since the Last Glacial Maximum significantly predicts community structure in sub-Saharan Africa and Southeast Asia. Human activities also play a crucial role in shaping mammal communities globally.
Researchers argue that academic journal rules are undervaluing the contributions of citizen scientists and indigenous knowledge. To address this issue, they suggest crediting non-professionals as group co-authors for their work on projects like online species identification apps. This approach aims to recognize their valuable contribut...
A study by Uppsala University researchers found a genetic tug-of-war between males and females that maintains genetic variation. This conflict leads to different gene variants being favored in each sex, contributing to the balance of genetic diversity.
Researchers investigated how residence patterns after marriage affect menopause symptoms and age of onset. They found little evidence supporting the theory that women's experiences with menopause vary due to dispersal from their natal home.
Biologists at UC Davis propose that species pay attention to each other, especially if they share predators, leading to new insights into population dynamics and cooperation. Advances in technology have made it easier to study short-lived interactions between species in the wild.
Researchers find over 100 insect larvae in amber, providing new evidence on the ecology of Eocene-era forests. The discovery supports a warm-to-temperate seasonal humid forest ecosystem interpretation, and offers insights into the evolution of dipteran larvae.
Researchers at OIST have constructed a new termite family tree using comprehensive RNA sequence analysis, placing a previously difficult-to-place subfamily within the Termitidae. The study reveals that comb building emerged in their common ancestor several million years after the loss of gut symbionts.
Biologists have documented the widespread presence of the notorious chytrid fungus in 80 species of frogs from lowland rainforest sites in the Peruvian Amazon. The study found that even lowland frogs with high levels of fungal infection showed no external signs of disease, suggesting they could serve as a large disease reservoir.