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Some are visible, such as dust, whereas others cannot be seen by the naked eye. Materials such as metals, microplastics, soil and chemicals can be in particulate matter. Particulate matter (or PM) is described in micrometres. The two main ones mentioned in reports and studies are PM10 (less than 10 micrometres) and PM2.5 (less than 2.5 micrometres). Air pollution comes from burning fossil fuels, cars, cement making and agriculture Scientists measure the rate of particulates in the air by cubic metre. Particulate matter is sent into the air by a number of processes including burning fossil fuels, driving cars and steel making. ....
Climate Change Reduces the Abundance and Diversity of Wild Bees, Study Finds Details Share This Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State. Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State. The findings suggest that addressing land-use issues alone will not be sufficient to protecting these important pollinators. “Our study found that the most critical factor influencing wild bee abundance and species diversity was the weather, particularly temperature and precipitation,” said Christina Grozinger, Distinguished Professor of Entomology and director of the Center for Pollinator Research, Penn State. “In the Northeastern United States, past trends and future predictions show a changing climate with warmer winters, more intense precipitation in wi ....
Date Time Climate change reduces abundance and diversity of wild bees, study finds The researchers analyzed a 14-year United States Geological Survey data set of wild bee occurrences from more than 1,000 locations in Maryland, Delaware and Washington, D.C., specifically examining how different bee species and communities respond to land-use and climate factors. The image features a spring bee, one of the species (Andrena nida) the team studied. Image: USGS Bee Inventory and Monitoring Lab Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State. The findings suggest that addressing land-use issues alone will not be sufficient to protecting these important pollinators. ....
Findings could inform management practices aimed at conserving wild bee populations Researchers found that bumble bees in landscapes that lacked quality nesting sites and spring flowers for forage had higher levels of pathogens. Their results can inform management practices to support the conservation of bee species that provide essential pollination services, they said. Image: David Cappaert, Bugwood.org Study: Bumble bees lacking high-quality habitat have higher pathogen loads Chuck Gill December 21, 2020 UNIVERSITY PARK, Pa. Bumble bees found in low-quality landscapes characterized by a relative lack of spring flowers and quality nesting habitat had higher levels of disease pathogens, as did bumble bees in areas with higher numbers of managed honey bee hives, according to research led by Penn State scientists. ....
E-Mail IMAGE: Researchers found that bumble bees in landscapes that lacked quality nesting sites and spring flowers for forage had higher levels of pathogens. Their results can inform management practices to support. view more Credit: David Cappaert, Bugwood.org Bumble bees found in low-quality landscapes characterized by a relative lack of spring flowers and quality nesting habitat had higher levels of disease pathogens, as did bumble bees in areas with higher numbers of managed honey bee hives, according to research led by Penn State scientists. The results of the study, which examined how a variety of environmental and landscape characteristics influence infectious disease prevalence and bee health, can be used to inform management practices to support the conservation of bee species that provide essential pollination services in natural and agricultural ecosystems, the researchers said. ....