Filters: Tags: survival (X)1,623 results (103ms)
Survival, Growth and Recruitment of Larval and Juvenile Razorback Sucker (Xyrauchen texanus) Introduced into Floodplain Depressions of the Green River, Utah
Floodplains are presumed to be important rearing habitat for the endangered razorback sucker (Xyrauchen texanus). To help recover this endemic Colorado River Basin species, the Upper Colorado River Endangered Fish Recovery Program implemented a floodplain acquisition and enhancement program. Levee removal was initiated in 1996 as one component of this floodplain restoration program. The goal of the Levee Removal Study was to evaluate the system responses to levee removal and make specific recommendations concerning the value of floodplain/river reconnecting for endangered species (specifically razorback sucker) recovery.
Captive breeding is increasingly being used to create supplies of endangered animals for release into natural habitats, but rearing strategies vary and debates arise over which methods are most efficient. We assessed postrelease behaviors and survival of three groups of black-footed ferrets, each with different prerelease experience. Eighteen ferret kits â‰¤60 days of age were moved with their dams from cages to 80-m2 outdoor pens with prairie dog burrows. These animals were compared to animals reared in standard cages (n=72), some of which were given experience killing prairie dogs (n=32). Ferrets were released onto white-tailed prairie dog (Cynomys leucurus) colonies in Wyoming, USA, in fall, 1992. Radio-tagged...
Dynamics of reproduction by hatchery-origin lake trout (Salvelinus namaycush) at Stony Island Reef, Lake Ontario
Infestation with larvae of the sea anemone Edwardsia lineata affects nutrition and growth of the ctenophore Mnemiopsis leidyi
Survival of salmonellas in a colony of common black-headed gulls Larus ridibundus between two nesting periods
Experimental study of interspecific competition between coho salmon, Oncorhynchus kisutch, and Atlantic salmon, Salmo salar, juveniles in fresh water
Capture-recapture analysis of a wintering Black-capped Chickadee population in Connecticut, 1958-1993
Spawning and larval husbandry of flounder (Paralichthys woolmani) and Pacific yellowtail (Seriola mazatlana), new candidate species for aquaculture
Effects of pH, calcium, alkalinity, hardness, and chlorphyll on the survival, growth, and reproductive success of zebra mussel(Dreissena polymorpha) in Ontario lakes
Population dynamics and production of the planktonic copepods in a eutrophic inlet of the Inland Sea of Japan. 3. Paracalanus sp.
Modelling heterogeneity in the recoveries of marked animal populations with covariates of individual animals, groups of animals or recovery time
Behavior of sea turtles at an urban beach III. Costs and benefits of nest caging as a management strategy