Articles tagged with Foraging
Researchers found that otters learn to extract food from unfamiliar natural prey with their own wits, not just by observing others. Eleven of the 20 otters in the study successfully extracted meat from rainbow trout, shore crabs, and blue mussels.
Researchers found that baby leatherback hatchlings are less sensitive to light than loggerheads, leading to circling behavior and delayed ocean entry. This difference may be an adaptation for detecting prey or habitats in the open ocean.
A study of isotopes found in bird samples reveals long-term patterns in the short-tailed albatross' foraging behaviour, which disappeared after hunting. The research suggests this hyper-specialised foraging could re-emerge as populations recover, highlighting the need for close monitoring.
Researchers found that early European farmers were on average 1.5 inches shorter than their pre-agricultural counterparts. Heights steadily increased through the Copper, Bronze, and Iron ages, with some parts of Europe experiencing a height loss. The study suggests that environmental factors contributed to the decrease in heights.
A study by researchers at the University of Plymouth reveals that energy-efficient broad spectrum lighting is reducing the efficacy of coastal species' camouflage. This can have significant impacts on visually guided ecological processes, with certain color variations being more vulnerable to detection.
Research found that adult howler monkey play increases when faced with competition over fruit, a valuable resource. This playful behavior helps regulate relationships within the social group and avoid conflict, unlike collective grooming used by some other primates.
A new analysis of human remains provides the earliest DNA from sub-Saharan Africa, outlining major demographic shifts between 80,000 and 20,000 years ago. The study reveals people moved and settled in other areas, developed alliances and networks to trade and share information.
Researchers found that streptomycin, a widely used antibiotic in U.S. agriculture, impairs bumblebee behavior, including reduced foraging efficiency and slowed cognition. The study aims to understand the potential impacts on pollinators of antibiotic use in agriculture.
A new research model shows that optimistic decision-making leads to healthier circumstances and better access to food. Foraging animals that give mental weight to positive outcomes have an on-the-ground caloric advantage.
Research shows that cow-calf pairs can be managed in drylots throughout the summer grazing period without significant negative effects on growth performance, lactation, and reproductive rates. Calves raised in drylots had increased performance compared to pasture-raised calves, but still showed signs of stress during weaning.
A new study found that early human foragers and farmers adopted a high-risk, high-reward strategy to find food, spending more energy but bringing home nutritious meals that could be shared with their group. This allowed them to rest or engage in other activities while food was being acquired.
A new study reveals that New Caledonian crows prioritize the storage of complex and efficient foraging tools over basic ones. The research suggests that these birds have an understanding of the relative value of different tool types, similar to humans when handling valuable items.
A recent study reveals that narwhals are highly affected by noise pollution from ships and seismic airgun pulses, triggering stress and altering their behavior. Researchers hope that better management of noise pollution will protect these unique Arctic animals.
A new study reveals that orangutan mothers are proactively involved in teaching their young, tailoring behavior to match age and abilities. They adjust tolerance levels during feeding interactions, facilitating learning opportunities and enabling immatures to acquire complex foraging skills.
Scientists have discovered that Tasmanian devils' whiskers can capture seasonal dietary changes over at least nine months and potentially up to a year. The long, wiry whiskers hold chemical imprints from food the devils ate in the past, offering a way to monitor the endangered native species with minimal disruptions to their habitats.
Bats build prediction models of prey movement by analyzing echoes of their own vocalizations. This acoustic information facilitates navigation and foraging in total darkness. By integrating representations of prey echoes, bats can determine distance, size, shape, and density, as well as identify what they are tracking.
Researchers at MDI Biological Laboratory discovered that muscle tissue is protected from reduced protein synthesis during nutrient scarcity, accelerating growth and reproduction. The study suggests potential for developing anti-aging drugs preserving muscle tissue while prolonging lifespan.
Researchers found that 44.3% of the Mbendjele BaYaka population had hazardous alcohol consumption, associated with mental and physical health harms like high blood pressure and increased diarrhoea rates. The study emphasizes the need for community involvement and socioeconomic changes to address the underlying drivers of poor health.
A new study by Virginia Institute of Marine Science researchers maps the conditions most suitable for key species of forage fishes in the Chesapeake Bay, offering guidance for protecting or restoring their habitats. The analysis reveals that factors such as water depth and temperature affect the abundance of forage fish, with some spec...
Deploying honeybees on solar parks in the UK could raise crop yields and financial returns, with soft fruits and oilseed benefiting the most. The study found that prioritizing these crops within a 1.5km honeybee foraging radius around solar parks could boost values by £80 million annually.
Research reveals that nectar-feeding bats foraging in intensively managed banana plantations have less diverse gut microbes compared to those feeding in natural forest habitats or organic plantations. This association between habitat alteration and sustainable agriculture on bat gut microbiota is a significant finding.
Female vampire bats with close social bonds leave the roost separately but reunite when hunting, indicating a preference for cooperative foraging. The study also reveals three distinct call types used during foraging trips, including one that may help identify friends and foes.
Researchers developed a method to forecast blue whale locations up to three weeks in advance, enabling proactive conservation and management. The tool helps minimize the burden on ocean users while protecting whales.
Researchers at the University of California - Riverside discovered that hummingbirds can avoid insects with defensive compounds, such as formic acid, which harm birds. The study shows that scent plays a crucial role in hummingbird foraging decisions and ecosystem function.
A new study reveals evidence of beer drinking 9,000 years ago in southern China, with ancient pots found at a burial site containing residues consistent with beer fermentation. The discovery suggests that ritualized drinking played a significant role in forging social relationships and cooperation among ancient communities.
Researchers found that bumblebee flight performance rises rapidly from 12°C and peaks between 25-27°C, but declines beyond this. This study suggests that climate warming may benefit some northern-latitude bee species, but poses risks to southern-latitude populations due to more frequent extreme weather events.
A new study by the University of Sussex reveals that natural selection leads to fluctuations in nectar supply and demand due to changes in pollinator populations. When pollinators are scarce, flowers produce more nectar to outcompete others, but when they're abundant, less nectar is needed.
Reconstruction of ancient oral microbiomes from the Upper Paleolithic to the Neolithic Periods in Southern Europe reveals a significant expansion of microbial species with the transition to agriculture. The studies sequenced ancient DNA from dental calculus, finding a dominant Anaerolineaceae species that diversified geographically.
Researchers found that bat species native to the Northeast are highly active in newly created forest spaces, foraging for food at higher rates than in mature forests. Young forests provide an ideal environment for bats to find insects and grow, making them a crucial component of bat conservation efforts.
A study evaluated Sentinel-2's potential to predict forage quality in Mediterranean permanent grasslands. The research group analyzed data from eight ranches in Andalusia, Spain, using the satellite's 13 spectral bands to detect changes in nitrogen, chlorophyll, and fibre content.
Researchers discovered that seabirds' reliance on flying fish as prey leads to reduced fish populations over 150 km from breeding colonies. This depletion effect is worsened by fisheries, posing a threat to seabirds' survival.
Research reveals that parrots rely on eavesdropping on vocal interactions to assess unfamiliar individuals. In flock encounters, flocks primarily choose to follow a leader's contact call, indicating the importance of vocal imitation in social interactions.
Using satellite data, researchers identified suitable foraging habitats and found areas of low resource availability that were rarely used by Aboriginal peoples. The study provides new information on the complex socioeconomic strategies employed by the indigenous population to adapt to environmental challenges.
Elephant seals spend 80% of their day foraging for fish, feeding between 1,000 and 2,000 times per day. Their unique foraging strategy can help monitor the health of the mesopelagic zone, a critical ecosystem expected to undergo substantial changes by the end of the century.
Researchers found that larger, more experienced bumblebees begin foraging at dawn despite poor visibility. This suggests that knowledge of food locations helps them navigate safely, and they can capitalize on the benefits of extra foraging time during early morning.
Researchers studied 71 elephant seals' daily routines, finding they prioritize low-risk rest at night as they gain body fat. Seals with more fat prefer darker waters for safety over energy conservation, and adjust bedtime based on daylight hours.
A new study reveals how female elephant seals shift their activity patterns as their body condition improves during a 7-month foraging migration. As they regain weight, the seals prioritize safety over feeding, with rest dives occurring progressively earlier and in shallower waters.
Researchers tracked breeding gannets for 11 years, finding that females travel up to 260km to find food, while males average 220km. The study highlights the importance of long-term studies and suggests differences in diet between sexes may be due to subtle taste preferences.
Researchers mapped the distribution of territories of two warbler species in a human-made landscape with patches of natural forests and pastures. The study found that both species co-occurred without direct competitive interactions, as they foraged in different habitats and locations.
A team of researchers has developed a low-cost system to monitor bee species in the UK using retroreflective vests. The system uses real-time tracking technology to record the foraging behaviour and 3D flight path of various bees, providing valuable insights into their ecology.
Native to the US, tepary beans are drought-heat tolerant and require less water than common bean crops. They can be used as forage or cover crops, adding atmospheric nitrogen to soil and improving food security.
Marine scientists have mapped previously unknown foraging grounds and migratory routes of Western Australia's green turtles to support conservation. The study tracked 20 female turtles with satellites, combining their data with previous studies to identify key areas.
Researchers from the University of Tsukuba and ETH Zurich found that marine bacteria switch between lifestyles to get the best resources, optimizing nutrient uptake in seascapes of organic particles. Bacteria spend more time on higher-quality patches, fine-tuning their foraging strategy according to patch quality.
A cross-continental team of researchers found that deer migration patterns are influenced by the progression of springtime plant growth, with slow and long green-ups correlating to resident strategies. The study suggests that conservation efforts should be tailored to local patterns of forage availability.
Researchers tracked changes in loggerhead sea turtle behavior before and after Hurricane Irene passed through the Mid-Atlantic Bight. The study found that turtles reacted to environmental changes, including cooler surface temperatures and disrupted thermocline layers, which influenced their movements and dive behavior.
Researchers discovered that zebrafish use social interactions to achieve near-optimal foraging efficiency and promote equality among group members. The study found that the animals adapt to group size but not food distribution, resulting in a robust foraging strategy.
Dolphins under age 10 form close bonds with peers to develop essential skills and social savvy, reflecting future reproductive strategies. Males and females have distinct social behaviors, with males prioritizing friendly interactions and females focusing on foraging and preparing for motherhood.
The study found that spider monkeys use a collective computation approach to determine team sizes for foraging, taking into account the opinions of their group mates. The collective effects produce a range of team sizes that work well given the availability of fruiting trees in their forest.
Researchers tracked green sea turtles migrating long distances in the Indian Ocean to small oceanic islands, revealing that they can redirect in the open ocean at a crude level. The study provides evidence of a map sense with open ocean reorientation, allowing turtles to fine-tune their navigation.
Researchers found that sorghum performed better under drought conditions, producing more biomass with less water. Mixed with supplements, sorghum can achieve desirable feed quality and increase profitability without sacrificing nutrition.
An experiment by PLOS found that adding a second entrance to an ant's nest reduces their ability to find and distinguish between food sources of varying value. This reduction in efficiency occurs due to increased competition among the ants, leading to decreased overall foraging success.
A study published in Current Biology found that dolphins can learn new foraging skills by observing and imitating their peers, not just their mothers. The researchers identified over 1,000 individual dolphins performing the behavior, which spreads primarily within social networks.
A new study reveals that dolphins can learn foraging techniques outside the mother-calf bond, showcasing horizontal social transmission. This innovation is similar to observed behaviors in great apes and highlights dolphins' capacity for behavioral adaptation.
A study led by the Max Planck Institute of Geoanthropology found that ancient DNA documents population changes across eastern and southern Africa from the Neolithic to the Iron Age. Genomic analysis revealed complex interactions between hunter-gatherers, pastoralists, and farmers, with varying integration of diverse ancestries.
Researchers found that pinker flamingos are more aggressive when competing for food in confined spaces. In contrast, birds fed outdoors with space to roam spend less time displaying aggression and double their foraging time.
Research by the University of Bristol found that certain fish perform better in disordered groups due to their increased alertness and ability to detect food sources. This challenges the traditional view of orderly group behavior as always beneficial for foraging, highlighting individual diversity as a key factor.
Research provides basic recommendations for creating pollinator-friendly gardens in urban areas, considering factors such as plant selection and landscape complexity. Key findings highlight the potential of human-managed green spaces to support declining pollinator populations.
Researchers found tepary bean offers rapid forage yields with a higher leaf-to-stem ratio, outperforming guar and soybean. Tepary bean is suggested as an alternate to soybean for producers, but further research is needed on its management strategies.
Researchers at Mississippi State University have successfully bred heat-tolerant annual ryegrass using recurrent phenotypic selection. The new germplasm can germinate and survive under high temperature stress conditions, allowing for late summer or early fall planting in the Southeast, increasing grazing days in winter and spring.
Researchers found that longer alfalfa harvest intervals in the southeastern US result in positive outcomes, with harvesting at 42-day intervals producing maximum productivity. Growing alfalfa in mixtures with tall fescue also yields greatest forage mass and nutritive value.