Articles tagged with Population Growth
Research found an invasive whitefly has a mutualistic relationship with plant viruses, increasing its population on virus-infected plants. This relationship allows the whitefly to displace native biotypes and cause disease pandemics.
Scientists analyzed hundreds of local populations of the Glanville fritillary butterfly, finding that a single molecular variation affects population growth. The study showed that genetic factors and habitat structure influence population dynamics, contradicting previous views on the role of environmental factors.
A study on Glanville fritillary butterflies found that genetic variation affects population growth, with different genotypes favored in small versus large meadows due to differences in maturation and egg-laying strategies. The results suggest a complex relationship between genotype, habitat, and population dynamics.
The Florida manatee population is rising in some regions, with annual growth rates of 3.7% and 6.2% in the Northwest and Upper St. Johns River regions, respectively. However, the Atlantic region's estimated growth rate is 1.1%, suggesting a possible decline or stability, while the Southwest region shows a negative growth rate.
A new study published in Ecology Letters improves extinction risk assessments by integrating machine learning algorithms and large datasets. The research reveals more accurate predictions for species vulnerability to extinction.
The report reveals that foreign immigration played a significant role in driving growth in the nation's population and labor force between 1990 and 2000. Massachusetts and New York were among the top states for dependence on immigrants, with all labor force growth in the state attributed to foreign immigration.
A study by USGS researchers found that large habitat patches are crucial for bighorn sheep persistence and growth rates. Small patches with high-quality habitat can still warrant restoration efforts.
Urban sprawl is expected to expand by 46% in coastal metropolitan regions by 2025, consuming 5.8 million acres of land, according to a study. The growth is driven by population increase and advances in transportation technology, which has allowed people to demand semi-rural locations with reasonable commute times.
A new federal report highlights the growing older population's improved well-being, with many experiencing better health and socioeconomic status. However, significant disparities persist in disability, chronic health conditions, and economic stress among certain groups, including minorities and low-income elderly.