Despite maintaining a degraded and fragmented forest mosaic, however, this landscape has supported populations of heavy-seeded trees and a probable refuge to their dispersal agents.
A spokesperson for the local sheriff's office declined to comment on the number of occupiers left at the wildlife sanctuary, but confirmed that officials have maintained a blockade and checkpoints around the refuge.
As the movement descended into violence, she sought refuge in books, trying to maintain a semblance of an education.
Risk management strategies include the planting of refuges, such as a plot of non-Bt corn near a field planted in Bt corn, in order to maintain a local population of insects that remain susceptible to Bt toxin.
Commissioned by William S. Paley, chairman of CBS, and named for his father, the project introduced the concept of the vest-pocket park, a small, privately maintained midblock refuge from the Manhattan grid.
Our results show that natural disturbances such as wildfire and the resulting diverse habitats can influence infection across large landscapes, potentially maintaining local refuges and host behaviors that facilitate evolution of disease resistance.
Environmentalists and the administration were concerned that the commonwealth didn't have the money to maintain the refuge, and that it could potentially be opened up to private development.
Focusing on the detrimental effects of failing to acknowledge evolutionary mechanisms in this process, we also take this opportunity to show that current agricultural management plans incorporate evolutionary principles, such as maintaining refuges of non-engineered plants to allow for some non-resistant insects to survive and maintain susceptible populations.
Most species within these two groups actively dig and maintain burrows in the sediment as a refuge from predation and environmental extremes.
The meadows in effect are already an evolutionary refuge, and the only option for long-term survival of these organisms is to actively maintain and protect the area as a refuge.
