Sentences with phrase «habitats affected these populations»

To see how the new habitats affected these populations, evolutionary ecologist Alexander Badyaev of Auburn University in Alabama and colleague Geoffrey Hill tagged thousands of birds at each site and followed their offspring from hatching through adulthood.

Not exact matches

As part of the Microbial Ecology Lab, he will help survey the many distinct habitats of Shedd's animal populations, analyzing how unseen members of complex ecosystems are impacted by changes in the environment, advancing the understanding of how these tiny microbes affect animal health.

The researchers collected data on a wide variety of ecological variables that could affect gloomy scale populations, including habitat characteristics, the temperature at each tree site, and the abundance of predators and parasitoids.

Commercial overfishing damages fish populations, marine habitats and ecosystems — consequences that also affect people who depend on the ocean for food and work.

Researchers assess the risk of species extinction with conservation models that combine factors that drive down populations — including habitat loss, hunting and overfishing — with the probability of chance disasters affecting the group.

They considered all the main issues affecting penguin populations including; terrestrial habitat degradation, marine pollution, fisheries bycatch and resource competition, environmental variability, climate change and toxic algal poisoning and disease.

Some gaps in the research include getting a better understanding of the distribution of species and habitats, understanding how marine populations respond to stressors and looking at how changes in climate can affect individual species and ecological communities.

Ensure that industry, mining, infrastructure, and rural development programs and projects are fully sensitive to the conservation needs of snow leopards and their ecosystems, do not adversely affect or fragment key populations or critical habitats, and employ wildlife - friendly design, offsets, and other mitigation tools.

Conclusion Parental pre ‐ acclimation to acidification levels that are beyond the pH that is encountered by this population in its natural habitat (e.g. pHT 7.2) negatively affected larval size and development, potentially through reduced energy transfer.

«The potential consequences to amphibian populations are interesting, including the continual masculinization of frog populations for many generations in habitats contaminated with high concentrations of road salt, which could potentially affect the abundance of frogs in these habitats,» said Relyea.

Cory Smith, director of companion animal public policy at the Humane Society of the United States, said habitat loss and other human - related causes affect bird and wildlife populations.

Second, mammal populations in complex rocky habitats have been less affected than those in more productive woodlands and savanna, suggesting a predation effect [25], [26].

Without large - scale restoration of degraded habitats to make them capable of supporting larger fish and shellfish populations there will be fewer fish in the future and without healthy growing corals there will be fewer beaches or tourism income, affecting all business owners on the island.

Since disturbance or loss of habitat negatively affects bat populations, forest companies want to know how to effectively manage the land while reducing impacts to wildlife communities.

Some species of marine mammals will be able to take advantage of increases in prey abundance and spatial / temporal shifts in prey distribution toward or within their primary habitats, whereas some populations of birds and seals will be adversely affected by climatic changes if food sources decline or are displaced away from regions suitable for breeding or rearing of young.

But these amazing insects are being threatened as climate change and habitat loss are affecting butterfly populations worldwide, striking another death knell for the hobby of butterfly collecting.