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Full-Text Articles in Aquaculture and Fisheries
Evolution Of A Field Biologist, Karen A. Smith
Evolution Of A Field Biologist, Karen A. Smith
United States Fish and Wildlife: Staff Publications
In My Double Life, biologist Frances Hamerstrom reveals her evolution from an affluent childhood in early 1900s Boston to a rugged and spirited field biologist. She writes in first person with short, easy-reading chapters about her life, generally in chronological order from childhood to present. The anecdotes are concise, witty, and spiced with humor in her characteristic, blissful confidence. There are many unique black-and-white photographs reproduced, as well as pen-and-ink illustrations mostly by her artist-daughter, Elva Hamerstrom Paulson. Half of the book's chapters are borrowed from earlier works, in particular her award-winning Strictly for the Chickens (1980). This new …
1996 Ecological Evaluation Cunningham Creek Potential Research Natural Area, A Final Report, Terri Hildebrand
1996 Ecological Evaluation Cunningham Creek Potential Research Natural Area, A Final Report, Terri Hildebrand
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The Cunningham Creek potential Research Natural Area (RNA) is located approximately 27.2 km (17 miles) east-southeasterly of Crawford, Nebraska or 40 km (25 miles) southwesterly of Chadron, Nebraska. Located on the Pine Ridge District of the Nebraska National Forest, the site is included in the Pine Ridge ecosystem of western Nebraska. Four hundred hectares (1000 acres) consisting of deciduous woodlands, pine forests, and upland prairies are located in the survey area. Inclusions of wet meadows, oak woodland, and aquatic systems intermingle in the deciduous woodland. Cattle grazing and recreation are the primary uses of the area. The purpose of this …
Gray Wolf Status In North Dakota, Daniel S. Licht, Louis E. Huffman
Gray Wolf Status In North Dakota, Daniel S. Licht, Louis E. Huffman
United States Fish and Wildlife: Staff Publications
Recent occurrences and reports of gray wolves (Canis lupus) in North Dakota have generated public interest and created demands on management agencies. We summarized reports of wolves in North Dakota received from the public and government personnel, and evaluated suitability of habitat for wolves. We suggest that in recent years dispersing wolves have sporadically occurred in all quarters of the state except the southwest, and non-dispersing wolves have occurred in the Turtle Mountains region in north-central North Dakota. Habitat data from the 1,500 km2 Turtle Mountains physiographic region, bisected by the North Dakota/Manitoba border, suggest the potential …
Raptor Nesting Chronology In Northwestern North Dakota, Robert K. Murphy, John T. Ensign
Raptor Nesting Chronology In Northwestern North Dakota, Robert K. Murphy, John T. Ensign
United States Fish and Wildlife: Staff Publications
Nesting chronology of raptors is sparsely documented in North Dakota. During 1981-94, we determined hatching dates at 298 nest attempts by eight species of raptors on and within 10 km of Lostwood National Wildlife Refuge, northwestern North Dakota. Mean hatching dates for most common species were 17 April for great horned owl (Bubo virginianus)(SD = 8.4 days, n = 70 nests), 1 June for red-tailed hawk (Buteo jamaicensis)(7.3, 99), 19 June for northern harrier (Circus cyaneus)(11.1, 37), 24 June for Cooper's hawk (Accipiter cooperii)(4.6, 19), and 27 June for Swainson's hawk ( …
Plant Identification For The Rio Grande Delta, William P. Kuvlesky, Jr.
Plant Identification For The Rio Grande Delta, William P. Kuvlesky, Jr.
United States Fish and Wildlife: Staff Publications
The Rio Grande Delta of Texas is one of the most diverse ecological areas in Texas. The area is favorite among ornithologists due to the presence of many species that winter there or migrate through the area. Similarly, the Delta harbors several rare mammals, reptiles, amphibians, and a host of invertebrates, which are found nowhere else in North America. Most ecologists attribute this unique faunal diversity to the great variety of vegetation that characterizes the Rio Grande Delta. Accurately identifying the vegetation is therefore an important aspect of field research performed in the region.