103) In addition, FWS regulations allow required protective management measures for experimental populations to include measures that isolate and/or contain the experimental population from natural populations.
Moreover, the ESA and FWS regulations establishing this division include various provisions that treat experimental populations as less valuable.
Cheats arise in the authors' experimental populations
and bring about collapse of the mats.
The scientists studied the fluctuations in experimental populations
of water fleas (Daphnia magna) undergoing environmental stress until they reach a tipping point beyond which they do not remain viable.
High Bromus density significantly increased root/shoot ratio, but decreased shoot height, basal shoot diameter, root and shoot biomass, leaf length, and shoot water potential of experimental populations compared to the control population (p [less than or equal to] 0.
Nevertheless, basal shoot diameter, as well as root and shoot biomass of did not differ significantly between control and experimental populations, with respect to time of planting (p > 0.
Currently, experimental populations can be designated as either essential or nonessential.
It argues that current protections for experimental populations may be insufficient to fulfill the long-term goals of the ESA and concludes that the regulations, as interpreted by FWS, may be inconsistent with the underlying goals of the Endangered Species Act.
So far, we have established experimental populations
for 12 species.
CIMMYT's germ plasm today encompasses about 30 experimental populations
offering widely different maturation periods, grain types (including white and yellow, soft and hard) and adaptability to climate, altitude, temperature, rainfall and soils.
These wolves were designated as nonessential experimental populations
to increase management flexibility and address local and state concerns.
The project will be facilitated by a June 26 rule classifying the eastern migratory flock as a "nonessential experimental population