Articles tagged with Behavioral Ecology
Researchers found that monk parakeets lose their social standing after a brief absence, particularly among high-ranking birds. The study, led by Annemarie van der Marel, used networks of aggression and observational studies to quantify bird status in dominance hierarchies.
The Southern Resident killer whale population is spending far less time in the San Juan Islands as their primary food source, Chinook salmon, declines. This decline is likely an effort to find alternative food sources, and research shows a strong relationship between the whales' presence and salmon returns.
A recent study published in The Science of Nature found that parasites and body condition are crucial factors in determining the vulnerability of fish to angling. The research revealed that fish with high body condition and parasites, as well as those with low body condition but no parasites, were less likely to be caught by anglers.
New research suggests brown widow spiders actively seek and kill nearby black widows, displacing them in parts of the southern US. Brown widow females are also larger and more fertile than black widows, with a higher reproductive success rate.
Researchers have discovered unexpected similarities between stone tools used by monkeys and some of the earliest hominin stone artifacts. The findings suggest that accidental production of stone fragments during nut cracking may hold clues to the origin of intentional tool use in early humans.
Research from the University of Cambridge and Cardiff University found that damselfish scare off cleaner fish customers, leading to fewer species receiving vital cleaning treatment. This disruption could contribute to the breakdown of delicate ecosystems supported by coral reefs.
A study by Osaka Metropolitan University found that fish recognize themselves in photographs based on their faces, not bodies. The cleaner fish attacked photos with unfamiliar faces but not their own, indicating a higher sense of self awareness.
A new study found that children in a modern forager society developed specialized foraging skills from an early age, which may have enabled the human species to afford larger brains. The research also showed gender-specific differences in foraging skills, with girls collecting tubers and boys climbing trees to collect fruits.
Researchers found that nectar-feeding bats rely on extra-long whiskers to navigate flowers while feeding, providing enhanced spatial information. Clipping whiskers reduced agility but didn't impact feeding ability.
Researchers at the University of Arizona found that rock ants follow a methodical search strategy, combining systematized meandering with random movement to efficiently explore new areas. This unique behavior may provide insights into the evolution of exploration strategies in other species.
This project aims to identify conditions necessary for abandoning climate-damaging social norms and test their effectiveness on representative samples in different countries. The goal is to find solutions for large-scale sustainable changes in individual and social behavior.
Biologists found songbirds can assess when predation risk from northern pygmy owls is highest and when there's safety in numbers. Mobbing behavior peaked in late summer and autumn when young birds are most vulnerable.
Researchers found muskies' size, boldness, and exploration levels are linked to their likelihood of striking. Anglers should prioritize catch-and-release and best practices to protect these traits.
A study by Oregon State University researchers found that synchronized fishing with dolphins in Brazil increases the number of fish caught and supports both species' survival. The cooperative relationship is specific to this population of dolphins and has been passed down through generations of fishermen.
Scientists found that invasive black rats transform reef fish behavior, causing changes in territorial patterns and nutrient cycles. The presence of rats disrupts the nutrient cycle by reducing seabird populations and nutrients deposited onto islands.
A recent study by Lancaster University found that coral bleaching events alter the behavior of butterflyfish, making it harder for them to recognize competitor species. This change leads to poorer decision-making, resulting in wasted energy and increased aggression.
Spotted hyenas show that twin brothers and buddies from the same birth group very often disperse together to breed. This coordination is likely due to similar preferences and social backgrounds. The frequent joint dispersal among twins and buddies has major consequences for understanding social dynamics and gene flow in wild populations.
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.
Researchers identified various feeding behaviors in nurse sharks, including vertical and ventral feeding, as well as 'pectoral positioning' where they flex their pectoral fins. This adaptable behavior suggests nurse sharks can thrive on different prey across various habitats.
A University of Cincinnati biologist is using a novel system to track the daily care of 47 northern bobwhite quail. The system uses wireless QR scanners to record health, food, water, and behavioral enrichment, making it easier to collect detailed data on animal welfare.
Researchers found that habitat loss and climate-induced food shortages drive pathogen spillover, but preserving and restoring natural habitats can prevent these events. By analyzing data from Australia, the study predicts when viruses like Hendra and Nipah will spill over from bats to humans.
A recent study found that juvenile pied flycatchers in Europe can distinguish their own population's song dialects even at 12 days old. This ability is thought to aid in attracting mates and preventing learning other species' songs, highlighting the remarkable specificity of bird behaviors.
Researchers from University of Göttingen found that plant water stress, not termites, causes Namibia's fairy circles. The grasses within the circles died immediately after rainfall due to strong depletion of water, while surrounding grasses thrived.
A study by Lund University found that males and females have different interests in group living, with males thriving in smaller groups and females benefiting from larger ones. This difference affects cooperation and competition, with males driven by rivalry and females by mutual support.
Researchers found that eyespots on animals' bodies make them more cautious when approached from the side, but not from directly behind or in front. This discovery sheds light on why eyespots have evolved to be symmetrical and effective predators.
A team at the University of Exeter discovered that migrating hoverflies orientate towards the north during spring, contradicting previous assumptions. The study tracked the insects' movement from Western France to Cornwall, showing a strong northerly compass sense.
A large wingless wood-eating cockroach unique to Australia's Lord Howe Island has been rediscovered at the foot of a single Banyan tree. The species was thought extinct since the 1930s, but its genetic difference from offshore relatives suggests it may have survived due to co-evolution with ground-dwelling insects.
Researchers at NTNU studied zebrafish brain activity while increasing temperature, finding that brains completely stopped responding to stimuli but then 'lit up' when temperatures reached extreme levels. Adding oxygen improved thermal tolerance and recovery rate in fish, suggesting a key role for glial cells in regulating oxygen supply.
Researchers found that kinship dynamics vary across species and sex, influencing helping behavior. In spotted hyenas, females' relatedness decreases with age, while males' increases, affecting their willingness to help groupmates.
Researchers investigated how paper wasps adapt their behavior when the queen is removed or dies, finding that they counterbalance genes that establish queen-like behavior with aggressive fighting. This enables societies to distinguish between intrinsic and extrinsic perturbations, allowing for plasticity in response to changes.
Researchers at Stockholm University found wolves can show attachment towards humans, discriminating between familiar and stranger individuals. The study suggests ancestral variation for human-dog attachment bonds, potentially explaining similarities in canine behavior.
A new analysis of chimpanzee stone tools shows diverse material culture across different groups. Researchers found notable differences between two groups in Guinea and the Taï Forest in Côte d'Ivoire, highlighting the significance of stone choice, availability, and nut species.
Research led by Ohio State University found that male common vampire bats withdraw socially and scale back on grooming before dying from the disease. The study suggests that the virus may not manipulate host behavior to increase transmission chances.
Researchers found that octopuses preferentially use their second arm when catching prey, exhibiting repeatable hunting behavior. This study has implications for developing next-generation soft robots inspired by the octopus's unique manipulative abilities.
Researchers at the University of Cincinnati found that Burmese pythons have evolved super-stretchy skin between their lower jaws, enabling them to consume prey much larger than expected. This adaptation allows pythons to eat deer and other large animals whole, providing a significant energy advantage in their ecosystem.
A study found that male Rock Hyraxes with stable isochronous rhythms in their courtship songs have higher reproductive success and more surviving offspring. Genetic analysis revealed that song rhythms are related to individual quality and potentially indicate health and suitability as mates.
A new study reveals that Brown-headed cowbird chicks thrive when paired with two Prothonotary Warbler nestlings, while performing poorly with four or no nestmates. This strategic advantage is attributed to the cowbirds' ability to outcompete and manipulate their host environment.
A new study finds that neon goby parents help their offspring develop by pushing them out the door at the right time. Offspring hatched by parents are larger and more developed than those that hatch on their own, suggesting a complex parenting behavior. This discovery highlights the surprising complexities of fish parenting behavior.
In southern Sydney, cockatoos have developed a unique behavior of opening garbage bins to eat food waste. Humans have responded by using various inventive methods to secure the bins, sparking an 'arms race' between the two species.
Scientists found that few components of an ant's waxy layer are enough to recognize nestmates from their own colony. The study also showed that adapting the wax layer to outside temperatures does not completely change the information used for recognition, but rather balances both functions.
Researchers assembled a large biologging dataset to understand how sharks, rays, and skates use the ocean depths. They found that many species migrate vertically in response to food resources, with some diving to extreme depths.
The winning image depicts a parasitic fungus infecting a fly, while other images showcase the relationships between species, biodiversity under threat, and research in action. The competition highlights the intersection of art and science, celebrating ecologists' creativity to protect the natural world.
Researchers found that Gursky's spectral tarsier duets exhibit acoustic trade-offs in note rate and bandwidth, suggesting a relationship between physical fitness and vocal complexity. The study suggests that only physically fit individuals can easily produce broadband notes fast.
A new study by researchers at the University of Oxford found that ageing female wild red deer on the Isle of Rum in Scotland tend to adopt a life of solitude as they grow older. They interact with fewer other individuals within their home ranges and shift to less populated areas of their habitat.
Researchers examine the relationship between thermal biology and sexual selection, finding that animals often tolerate perilous temperatures during mating to increase reproductive success. The study highlights the importance of considering scale in understanding the impact of global warming on reproductive processes.
A new study investigates how birds experience neophobia, which could play a vital role in helping to save Critically Endangered species. The research gathered data on the behavior of captive Bali myna birds, revealing that juvenile birds may be more suitable for reintroduction than adults.
A new study reveals that bottom burrowing animals were among the first to recover after the end-Permian mass extinction. The research, led by Dr. Xueqian Feng, used ancient sea bed burrows and trails to reconstruct the recovery stages of various animal groups.
Rainforest chimpanzees are digging wells to access and filter cleaner drinking water due to the limited availability of clean water during the dry season. The behaviour has been observed spreading among young chimps and adult females, with some males using the wells dug by others.
Scientists have discovered a way to harness animals' olfactory ability to protect endangered plants and animals by masking their scent, disguising it, or spreading similar scents. This method is more effective, sustainable, and animal-friendly than traditional deterrents like fences and lethal control methods.
Researchers tracked medium ground finches' movements day and night, finding they cover areas equivalent to 30 soccer fields and gather nightly in a lush grove. This behavior helps birds fight cold and reduces predation risk.
Researchers find that cooperative breeding in animal societies increases survival chances of carers, leading to higher reproductive success. The study also reveals the relative importance of kin selection and individual selection varies depending on environmental conditions.
Researchers found that neurons in the fly's lateral horn play a crucial role in evaluating individual odors and mediating odor-guided behavior. The study identified glutamatergic neurons as key players in this process, which enables flies to recognize good or bad odors.
A study of nomadic pine siskins found that pairing with settled male birds triggered signs of ending migration, including reduced restless flying and body mass loss. This suggests that social cues play a role in migratory decisions for unpredictable animals like pine siskins.
Researchers develop system to measure power distribution between sexes in animals, finding females rule in some species, with reproductive control as common thread. The study proposes a new framework to quantify intersexual power relationships across mammalian societies.
A new study reveals that wild chimpanzees produce hundreds of diverse vocal sequences, combining up to ten call types, and exhibit structured communication patterns. This discovery challenges the long-held assumption that non-human primates lack complex vocal communication systems.
A new framework for understanding animal societies emerges from a review of wealth inequality research in humans and animals. Wealth is found to be distributed equally or unequally across species, with material goods, individual attributes, and social connections being critical sources.
The Ecological Society of America will hold its 107th Annual Meeting in Montreal from August 14-19, 2022. This year's meeting combines resources and interests of the ESA and Canadian Society for Ecology and Evolution, focusing on theme "A Change Is Gonna Come" exploring global environmental and evolutionary change.
A study by the Norwegian University of Life Sciences tracked almost every cat in a neighborhood, revealing that most outdoor pet cats stay within a short distance from their homes. The results showed that cats spend an average of 79% of their time outdoors within 50 meters of their home.
Urban mammals adjust their daily activities to evade human encounters, altering predator-prey dynamics and increasing human overlap. This multi-species study reveals the timing of mammalian behavior changes in response to urbanization.
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.