Articles tagged with Animal Habitats
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Researchers developed a new way to measure habitat complexity, which is crucial for understanding biodiversity and conservation status. The method uses three metrics: rugosity, fractal dimension, and height range, and can accurately predict the distribution of biodiversity in complex ecosystems.
Researchers found that brood parasites living in variable habitats diversify their egg-laying choices among multiple host species, increasing reproductive success. This 'bet-hedging' strategy allows them to counter environmental threats and ensure survival over time.
A new study reveals that female Emigrant butterflies selectively burden themselves with eggs during long-distance flights, whereas males travel light. This disparity stems from differences in predictability of habitat patches and larval host plants between migrating and dispersing species.
Research suggests that dogs are still a major threat to giant pandas in Chinese nature reserves, with 40% of habitats within range of roaming dogs. Implementing dog-control measures, such as licensing and neutering, is crucial for the bears' survival.
Researchers found that if 40% of landowners provide space for wild bee habitat, they lose $1M but generate nearly $2.5M for their neighbors. Collaboration among neighboring farmers could lead to increased benefits.
Increasing crop diversity in landscapes with high proportions of semi-natural habitats increases the diversity of beneficial insects like pollinators and ground beetles. This benefit was only observed in landscapes with both high crop diversity and semi-natural habitat cover.
A new study found that flies from the Drosophila family have optimized their eye and nose sizes to adapt to different habitats, influencing behaviors such as courtship and habitat preferences.
Researchers analyzed ancient marine ecosystems in Tierra del Fuego and found that the Argentinian hake had a broader isotopic niche and fed on coastal habitats during the Middle Holocene period. This study predicts potential changes in the fishing industry in the region if environmental conditions align with those of the past.
A new study using data from 123 studies worldwide found that smaller habitats lead to more species extinctions when compared to larger habitats. The researchers developed a way to develop more realistic biodiversity forecasting models by accounting for ecosystem decay.
Sea turtles may experience a 87% decline in critical nesting habitat on Bioko Island by 2100 due to rising sea levels. The study, funded by HESS Equatorial Guinea and Purdue University Fort Wayne, predicts this impact for the beaches of Bioko Island.
A new mouse lemur species, Microcebus jonahi, has been identified in northeastern Madagascar with a divergent lineage and smallest primate size. The discovery emphasizes the urgent need to address deforestation and habitat loss threatening Madagascar's unique biodiversity.
Researchers tracked seven whitespotted eagle rays for 119.6 hours, revealing their fine-scale movement patterns and habitat use. The study found that rays prefer shallower waters during the night and faster movement in ocean habitats.
Researchers have found that the Lahontan Cutthroat Trout population at Summit Lake remains stable despite climatically induced drought, thanks to a blend of science-based research and tribal cultural practices. The team's study provides valuable insights into restoring other Nevada lakes with similar trout populations.
Researchers found that baby blacktip reef sharks can tolerate the extreme conditions of their nurseries, but these environments face an uncertain future due to climate change. The habitats' dramatic temperature and oxygen fluctuations can be a strain on the young sharks.
Researchers tracked baleen whale movements using passive acoustic recordings, finding four species have changed their distribution patterns in the past decade. The Gulf of Maine is warming faster than other regions, resulting in changes in distribution for five out of six baleen whale species.
A study by University of Alberta ecologists reveals that industry-created borrow pits provide homes for beavers, supporting the survival of wolverines. The research, funded by various organizations, highlights the unexpected benefits of industrial development on local wildlife habitats.
A new study documents tiger sharks' movements and core habitats in the Gulf of Mexico, providing valuable insights into their behavior and vulnerability to environmental change. Researchers tracked 56 tiger sharks with satellite tags, revealing sex- and size-specific differences in distribution and movement rates.
A tracking study of 56 tiger sharks reveals that older sharks travel faster and swim into deeper habitats than juvenile sharks. The analysis also shows that core habitats of tiger sharks overlap with locations designated as Habitat Areas of Particular Concern.
A new study reveals that dehydration increases amphibian vulnerability to climate change, with rising temperatures and dry conditions posing a dual threat. By 2080s, habitats may become too hot or dehydrating for many species, forcing them to adapt by moving between habitats more often.
Alaska's chinook salmon populations are declining due to climate-driven changes in their freshwater habitats. Productivity decreased when stream temperatures rose above 64 degrees Fahrenheit, and heavy rains led to lower spawn production.
A new study reveals that the last remaining agro-steppe habitats for endangered bird species in Europe may decline by up to 50% in the next century. The Natura 2000 network, a biodiversity conservation strategy, has failed to prevent habitat loss despite protecting approximately 36,000 hectares of agro-steppe area in Iberia.
Researchers identified 37 supergenes in wild sunflower populations that govern the modular transfer of traits important for adaptation. These supergenes can be truly massive, with the largest comprising over 100 million base pairs and 1,819 genes.
Researchers from UCL and ZSL have discovered a soft coral garden habitat in Greenlandic waters, characterized by cauliflower corals and diverse fauna. The discovery has direct implications for the management of deep-sea trawl fisheries and may lead to protection under UN guidelines.
Scientists found impressive reefs with diverse coral communities but few fish, particularly near coastal communities. The research provides critical baseline data to monitor changes and inform management plans for conservation.
A study published in Restoration Ecology found that mountain meadow restorations using the 'pond and plug' technique increased bird populations over time. The study's authors concluded that both hydrologic measures and vegetative measures were helpful in creating habitat for birds, with the latter approach accelerating positive impacts.
Researchers have discovered two new species of burrowing crayfishes in southwestern Alabama and southeastern Mississippi. The Lonesome Gravedigger and the Banded Mudbug are considered Vulnerable to extinction due to their limited ranges.
Researchers used high-resolution data to identify environmental factors shaping redwood distribution, finding habitat suitability varies with moisture availability and fog across different landscape elevations. Redwood habitats are consistently more suitable near streams, with suitability ranging from 22-75% within a single landscape.
Researchers found that northern bobwhites are drawn to habitats based on the presence of other birds, which could aid in conservation efforts. This phenomenon, called conspecific attraction, was studied using recordings of bobwhite songs.
A new study led by UNSW reveals that blenny fish's transition from water to land is driven by dietary flexibility, which allows them to survive and thrive on land. The researchers found that once on land, these remarkable creatures face restrictions on food availability, triggering major evolutionary changes in their morphology.
Research on blennies reveals that flexibility in diet and behavior allows fish to transition onto land, while specialization leads to successful adaptation. The findings provide insights into the challenges faced by fish out of water and offer a unique perspective on the evolution of terrestrial vertebrates.
Researchers found that migratory shorebirds rely on the upper tidal flats closest to dry land for food and energy, which are often lost to development. This study suggests a new approach to conserving endangered species by focusing on preserving these high-value habitats.
A new study finds that temperate insects are as threatened by climate change as tropical species due to their inactive periods. The researchers analyzed insect populations and found temperatures close to optimal or critical limits, risking population decline and ecosystem disruption.
A Stanford-led study reveals that reducing the number of unused containers can be an effective means of mosquito control, with women and children playing key roles in implementing this approach. The researchers identified laundry buckets and tires as common breeding habitats for Aedes aegypti mosquitoes.
Researchers project that American lobster will move further offshore and sea scallops will shift north in the coming decades. The study's findings pose fishery management challenges as changing habitats can impact where species can be caught and who has access to them.
A new study found that the alien spotted-thighed frog has an indiscriminate diet, devouring up to six prey items per frog, including native geckos, young frogs, and mice. The invasive species could have devastating impact on invaded habitats, displacing or destroying local food webs.
Researchers found that removing just the top 26 meters of a platform results in an average loss of only 10% of fish biomass, while completely removing it leads to a 95% reduction. Partial removal supports significantly more fish biomass than complete removal.
Researchers from FAU Harbor Branch Oceanographic Institute used satellite telemetry to track the movement of Indian River Lagoon dolphins at night. The study found that these dolphins regularly leave the estuarine system and swim substantial distances up freshwater rivers, creeks, and canals.
A study found that great gray owl populations in California and Oregon have lower genetic diversity due to range discontinuity, leaving them susceptible to diseases and environmental stressors. The researchers propose that conservation efforts may be necessary to protect these vulnerable populations.
A new study reveals that metabolic differences in Humboldt penguins' blood can indicate their nesting habitat, with distinct patterns of sugars found in sheltered and exposed nests. The findings suggest that penguins in exposed areas are more likely to be exposed to air pollution.
A new Oregon State University-led study reveals that the reintroduction of wolves in Yellowstone National Park has led to an increase in the height of willows in northern Yellowstone. The researchers found that a reduction in elk browsing over the last two decades allowed willows to grow taller, despite a warming and drying climate.
A study led by University of Maryland Baltimore County Ph.D. candidate Samuel Hulse demonstrates a strong correlation between the visual patterns on male darter fish and their environments, supporting sensory drive theory. The findings show that male fish with colors easily perceivable in their environment are more likely to reproduce.
New research finds that virus infection rates in lobsters are related to their habitat, with seagrass meadows showing a protective effect against the spread of disease. The study's findings support efforts to safeguard Caribbean spiny lobster populations and boost understanding of viral dynamics.
A new study reveals that oceanographic conditions in the Gulf of California drive the origin of new shark and ray species, challenging traditional assumptions about species evolution. Four types of guitarfish have been identified, each adapted to a specific region, with improved survival and reproduction odds.
A new study reveals that Madagascar copal, a material thought to be hundreds of years old, is actually an Antropocene-era resin made during the extreme human impact period. The findings suggest that species within the resin may have adapted to new habitats due to deforestation.
A new study found that ocean warming will alter Antarctic krill growth habitats, with a moderate impact across 85% of the Southern Ocean. Krill are expected to move further south and shift in seasonal conditions, affecting conservation efforts and the management of the fishery.
Researchers tracked pine martens in Wales, finding they settled more rapidly when released near neighbors. This behavior allows for efficient territory creation, influencing their mobile range of approximately 9.5 km2. The presence of pine martens also affects grey squirrels' behavior, forcing them to alter their ranging patterns.
The yellow-legged gull's annual lifecycle is adapted to human activities for food, with its eating pattern changing throughout the year. This opportunistic species can modify its habitat use to manage limitations, such as physiological restrictions and fluctuations in food availability.
Scientists propose integrating oceans into climate policies, highlighting four areas of investment: energy, transportation, food security, and habitat restoration. Aquaculture and sustainable fisheries also hold potential for reducing emissions and enhancing the food supply.
A study by University of Queensland found that developers face challenges in finding enough land to offset biodiversity impacts, limiting global conservation goals. The research highlights the limitations of existing offset policies and the need for governments to account for land availability constraints.
A new study found that existing and planned roads in tiger habitats will exacerbate threats to the species, including prey depletion, habitat degradation, and poaching. By 2050, nearly 15,000 miles of new roads are expected to be built, deepening the big cat's extinction risk.
A recent study found that whole-lake experiments can reveal the causes of hyperstability in recreational fisheries. Habitat aggregation and effort sorting are identified as drivers of hyperstability collapse. Limiting angler effort through policy changes is proposed to protect vulnerable fish stocks.
A study published in Nature Climate Change used tracking data from crabeater seals to build a habitat model of krill distribution along the western Antarctic Peninsula. The researchers project that areas of krill habitat will shrink and move farther offshore, affecting species such as penguins and fur seals.
Researchers found that genomic changes occurred quickly, with river variants increasing in frequency by 2.5% over a single generation. This study demonstrates rapid evolution in non-microorganisms, potentially aiding organisms to cope with human-induced environmental changes.
A new study finds that mountain-dwelling species may move to higher elevations to escape human pressure, which could reduce their extinction risk. The research suggests that these high-elevation areas tend to have more intact land for species due to reduced human activity.
Researchers from the Universities of Bonn and Zurich have found a significant decline in food plants for insects in the canton of Zurich over the past 100 years. This has resulted in a decrease in the abundance of species visited by bees, bumblebees, wasps, butterflies, hoverflies, flies, and beetles.
The largest study to date has found that global insect populations are declining on land by an average of 0.92% per year, resulting in a 24% decrease over 30 years. However, freshwater insects have shown an average annual increase of 1.08%, corresponding to a 38% increase over 30 years.
Researchers have found a rare marine snail, Leptogyra bujnitzkii, in a biological collection from the Soviet Arctic expeditions of the 1930s. The discovery suggests the presence of sunken wood biocenoses in the Arctic Ocean.
New research found that elevated CO2 concentrations cause profound changes in marine habitats, dominating them with opportunistic algae. This shift leads to a loss of coral-associated species and rearranges feeding behavior, resulting in a 45% decrease in fish diversity.
Researchers found that only about half of present cropland would be required to produce major crops with high nutrient inputs, while the other half could be restored to natural habitats. Targeted land sparing in biodiversity hotspots resulted in reduced greenhouse gas emissions and increased carbon sequestration.
A massive monitoring study found Canada lynx on only 20% of its potential habitat in Washington state, highlighting the impact of climate change and wildfire on their survival. The research suggests that lynx are a key indicator species for climate change, with warming temperatures and reduced snowpack threatening their ability to thrive.