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  • All fields: Biological control
(172 results)



Display: 20

    • A preliminary biological assessment of Kirwin National Wildlife Refuge

    • Biological control; Physical geography; Research; Wildlife refuges;
    • This is a preliminary biological assessment of Kirwin National Wildlife Refuge. Stimulation for the report was based on the concept that future decisions related to the biological portion of the Comprehensive Conservation Plan will be based on the...
    • A talk with Nancy Langston

    • Biological control; Biologists (USFWS); Diseases; Environmental education; Farms and farming; Podcast; Public Lecture;
    • In 1941 the Food and Drug Administration approved the use of diethylstilbestrol (DES), the first synthetic chemical to be marketed as an estrogen and one of the first to be identified as a hormone disruptor—a chemical that mimics hormones. Its...
    • Age, growth, sex composition, and maturity of white bass in Bull Shoals Reservoir

    • Document; Fisheries management; Fishes; Lakes; Rivers and streams; Biologists (USFWS); Biological control;
    • White bass in Bull Shoals Reservoir were studied from October 1963 through January 1966 to determine age, growth, sex composition, and maturity. Average calculated total length for males and females were calculated at the end of each year of life...
    • Aily Zirkle oral history transcript

    • Biography; Birds; Employees (USFWS); Biological control; Education; Environmental quality; Environmental education; Winter sports; Wildlife viewing; Wildlife refuges; Villages; Migratory birds; Surveying; Migration;
    • Aily Zirkle oral history interview as conducted via radio interview.
    • Alfred Godin oral history transcript

    • History; Biography; Biologists (USFWS); Biological control; Birds; Employees (USFWS); Fishes; Fishing; Commercial fishing; Scientific personnel (USFWS); Wilderness; Wildlife management; Wildlife refuges;
    • Oral history interview with Alfred Godin. Thomas Goettel as interviewer.
    •  Buffle Grass

    • Biological control; Coastal environments; Coastal restoration; Coastal zone management; Ecosystem recovery; Emblems; Employees (USFWS); Grasses; Habitat conservation; Habitat fragmentation; Habitat restoration; Invasive species; Landscape...
    • U.S. Fish and Wildlife Service employee inspects invasive species, Buffle Grass.
    • Ecology of Gila trout in Main Diamond Creek in New Mexico

    • Document; Fisheries management; Fishes; Lakes; Rivers and streams; Biological control;
    • The Gila trout (Salmo gilae) was once widely distributed in headwaters of the Gila River in New Mexico. Introduction of exotics and changing climate have resulted in marked decline of the species. Study objectives were to obtain information that...
    • Example of Brazilian Pepper plant

    • Berries; Biological control; Coastal environments; Coastal restoration; Ecosystem recovery; Environmental quality; Habitat fragmentation; Habitat restoration; Invasive species; Islands; Vegetation; Wildlife refuges; Work of the Service;
    • This Brazilian Pepper plant is an exotic invasive species which overtakes native plants to the Florida gulf coast and elsewhere.
    • Fire management and invasive plants: a handbook

    • Fire management; Fires; Invasive species; Policies; Prescribed burning
    • This is a handbook describing the correlation between fire management and the introduction of invasive species. It offers procedures for fire managers to follow in order to prevent the spread of invasive species as an unintended result of fire...
    • Fish and Wildlife Employee Sprays Melaleuca

    • Biological control; Employees (USFWS); Equipment; Habitat conservation; Habitat restoration; Invasive species; Maintenance; Plants; Refuges; Wildlife refuges;
    • Fish and Wildlife Service employee spraying exotic invasive melaleuca to try to control the exotic invasive. Vertical.
    • Fish and Wildlife Service employee eradicating Invasive

    • Biological control; Employees (USFWS); Environmental quality; Equipment; Habitat conservation; Habitat restoration; Invasive species; Maintenance; Plants; Refuges; Wildlife refuges;
    • Fish and Wildlife Service employee with axe, chopping at melaleuca tree trunk in refuge invasive species eradication program.
    • Fish and Wildlife Service employee showing invasive plant

    • Biological control; Employees (USFWS); Environmental quality; Habitat conservation; Habitat restoration; Invasive species; Maintenance; Plants; Refuges; Wildlife refuges;
    • Fish and Wildlife Service employee standing at edge of wetland area being taken over by invasive species water hyacinth and holding two plant specimens to show leaves and root systems. Vertical.
    • Habitat suitability index models: Blue-winged teal (breeding)

    • Aquatic birds; Biological control; Habitat conservation; Migratory birds; Wetlands;
    • This document is part of the Habitat Suitability Index (HSI) Model Series [Biological Report 82(10)] which provides habitat information useful for impact assessment and habitat management. Several types of habitat information are provided. The...
    • Habitat suitability index models: Gadwall (breeding)

    • Aquatic birds; Biological control; Habitat conservation; Migratory birds; Wetlands;
    • The basis for this HSI model was developed in a workshop that included the following waterfowl biologists form the Northern Prairie Wildlife Research Center, Jamestown, ND: Leo Kirsch (retired), John Lokemoen, and George Swanson. These individuals...

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