Articles tagged with Migration Tracking
Researchers found a 'well-watered corridor' in the Levant that funnelled hunter-gatherers towards western Asia and northern Arabia via Jordan. This route, favoured by travelling Homo sapiens heading north, was used to populate Asia and then Europe over tens of thousands of years.
A 10-year study found that golden-crowned sparrows resettled an average of just 90 feet away from the center of their previous year's range when returning to California after winter migration. The study suggests that social bonds and familiar faces help anchor the birds to specific spaces, even when resources are scarce.
A longitudinal study using acoustic telemetry monitored rays in clam leases, finding that rays spent more time near sites than reported, but not necessarily preferring them. The study highlights the need to understand if clam leases are part of rays' natural foraging habitats and if they interact with the clams.
A team of researchers has developed a system that uses fibre-optic cables to detect and measure acoustic signals from the ocean, including whale vocalizations, ship traffic, earthquakes, and distant storms. This technology has the potential to create a global real-time monitoring network for Ocean-Earth sciences.
A new study reveals that standard goose harassment efforts are ineffective, especially in winter when birds should be most susceptible to scare tactics. Canada geese return to their territories despite harassment, prioritizing access to resources over energy conservation. The research team found that geese adapt to urban environments, ...
Scientists have found that narwhals are changing their migration patterns in response to sea ice loss due to climate change. The study, published in PNAS, shows significant delays in autumn migrations and sex-specific differences in departure times.
A Washington State University study showed that drone photography can effectively estimate the number of rocky hollows in the Wenatchee River where salmon create their eggs. The researchers found roughly double the number of redds using drones compared to ground-level observations, but with high variability. This technology has potenti...
Researchers radio-tracked migrating hawkmoths for up to 80 kilometers, employing sophisticated flight strategies to counter unfavorable wind conditions. The study confirms that insects can accurately maintain straight trajectories over long distances using internal compasses.
Researchers successfully used Distributed Acoustic Sensing to passively listen to whales, detecting over 830 vocalizations and locating their positions with unprecedented spatial resolution. The technique allows for real-time monitoring of whale behavior, as well as detection of other ocean sounds like storms and earthquakes.
Satellite-tracking of whale sharks in the Panamanian Pacific reveals their feeding and breeding patterns, with a focus on protecting these endangered species from human threats. The study highlights the importance of identifying and conserving large oceanic areas and marine corridors to safeguard their migration routes.
Great White Sharks have been avoiding a South African coastal region due to the presence of Orcas. Long-term sightings and tagging data show that Great Whites flee areas with high Orca activity, adopting a 'flight' strategy reminiscent of wild dogs in response to increased lion presence.
A team of University of Hawaii researchers found that the number of hours of darkness during the lunar cycle triggers mature Hawaiian box jellyfish to swim to shore to spawn. The study also revealed that jellies are likely to come from the lee of Diamond Head Crater, where they benefit from shelter and food.
A retrospective study examined deaths, injuries, and hospital costs after a 30-foot border wall was built in San Diego and Imperial counties. The study found that raising the US-Mexico wall resulted in increased migrant deaths, trauma center admissions, and severity of injuries.
Researchers used GPS data from 65 bird tracking studies to identify areas where migrating birds are more sensitive to onshore wind turbine or power line development. These 'collision hotspots' are concentrated along important migration routes, coastlines, and near breeding locations in Europe and North Africa.
A new study reveals that leafcutter ants employ complex strategies to maximize the growth of their fungal
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 study published in Nature Communications found that male Caspian terns carry the main responsibility for teaching young birds the secrets of migration during their first journey. Young birds always remained close to an adult bird and died if they lost contact, highlighting the importance of experienced adults guiding them to survive.
Assistant Professor Emily Cohen at the University of Maryland Center for Environmental Science received a $750,000 NSF CAREER Award to study migrating birds as communities. This research aims to fill critical gaps in understanding animal migration by considering migratory animals as networks of ecological interactions.
A recent study published in PLOS Genetics found that genetic legacy from the last glaciation influences reindeer's migratory behavior. Caribou with more northern ancestry were more likely to migrate longer distances, highlighting an evolutionary adaptation to harsh tundra environments.
A new study found that climate-driven changes in ocean temperatures have shifted tiger shark movements outside of protected areas, making them more vulnerable to commercial fishing. The study's results suggest that warmer waters are now suitable for tiger sharks, allowing them to migrate farther poleward and earlier than usual.
Oceanographers replaced ship-based studies with sensors attached to seals to navigate icy waters, revealing seasonally varying water flows and their impact on biological production. The study found that warm, low-salinity water appears during autumn, positively affecting seal foraging behavior and potentially enhancing prey availability.
Scientists used biologging tech to track three seabird species taking different migration routes from a shared Canadian Arctic nesting location. The study adds evidence linking marine biodiversity in the Arctic region to high seas conservation efforts. Local coastal communities are connected through these Arctic seabirds' migrations.
Researchers used GLS tracking data to study sooty terns' migration patterns, showing they range up to 2,900 km from breeding colonies and cover 47,000 km during an eight-month migratory period. The largest breeding population of terns is on Ascension Island, which was designated a Marine Protection Area in 2019.
Researchers tracked black-tailed deer before, during, and after the Mendocino Complex Fire, finding that all 18 deer survived. Despite burned areas with no vegetation, most deer returned home within hours, potentially due to their loyalty to habitat. However, some deer's body condition declined as they expanded their range.
Researchers tracked five species of large land birds flying nonstop over the open ocean, exploiting wind and uplift conditions to save energy. The study reveals that many land birds rely on atmospheric support to complete their migrations, making them vulnerable to climate change.
Researchers found that migratory ungulates develop and persist migration behaviors through social learning of local knowledge. Reintroduced populations showed better green-surfing ability over time, demonstrating the importance of cultural transmission in these nomadic mammals.
Research tracking juvenile storks reveals that birds at the head of a flock use thermal winds more efficiently and flap less. The study suggests that individual variation in flight performance is linked to differences in finding and exploiting thermals.
Researchers used satellite tracking to study basking shark migrations, revealing they don't hibernate in UK waters but instead seek out warmer temperatures. The data provides crucial information for conservation efforts, as the species is classified as 'vulnerable' and faces threats from human activities.
A study of 196 bird species reveals that body size affects their migration patterns, with smaller birds traveling longer distances than larger ones. Soaring birds, such as raptors and albatrosses, have larger migration ranges independent of body size due to low energy consumption.
Researchers found that larger-bodied birds tend to stay longer at stopover sites during fall migration, but smaller-bodied birds migrate faster in autumn. The study suggests that physical characteristics such as body size and wing size play a significant role in determining migration performance.
Dynamic MPAs can move in time and space to protect migratory species, while CCAMLR's success in Antarctica offers a model for high seas conservation. Closing the high seas to fishing could lead to increased catch and more equitable distribution through EEZs.
Researchers used geolocators to track songbirds' migration patterns, finding that hybrid species exhibited increased variability in their routes. This study supports the hypothesis that differences in migratory behavior can act as postmating reproductive isolating barriers.
Researchers monitored mallards' migration patterns using satellite tracking technology, revealing the crucial role of public and private wetland areas. The study underscores the need for protected wetlands to maintain healthy migratory bird populations.
Research on Western Sandpipers reveals that birds fatten more rapidly as they move further north, with longer stays at refuelling sites resulting in lower fattening rates. This suggests changes in behaviour or physiology may be responsible for the observed differences.