Proceedings of Southeastern Fish and Wildlife Conference
Prior to 2013, SEAFWA published the Proceedings of annual conferences. In 2014, SEAFWA began publishing the peer-reviewed Journal of the Southeastern Association of Fish and Wildlife Agencies.
2651 - 2700 of 4522 articles | 50 per page | page 54
| Article | Year |
|---|---|
Food Habits of Hybrid Buffalofish, Tilapia, Israeli Carp and Channel Catfish in Polyculture Channel catfish were cultured alone, and in combination with Tilapia aurea, Israeli carp, and hybrid huffalofish in O.l-acre earthen ponds. Studies were conducted on the stomach contents ofthese species in May, July. and October. During the study the stomachs of 243 channel catfish, 17 adult hybrid buffalofish, 85 fingerling hybrid buffalofish, 157 tilapia, and 7 Israeli carp were examined. Supplemental feed comprised 87% ofthe channel catfish diet. 58% in the tilapia, 42% in the adult hybrid buffalofish, 56% in the hybrid bulfalofish fingerlings, and87% in the Israeli carp. Jerald Williamson, R. O. Smitherman
Pages 86-91 |
1975 |
Polyculture Studies with Channel Catfish and Buffalo Polyculture studies were conducted in coastal brackish ponds evaluating buffalo (Ictiobus spp.) and channel catfish (Ictalurus punctatus) combinations. The 1973 and 1974 southwest Louisiana studies demonstrated feeding to be necessary, without it, buffalo were found to compete with catfish for natural foods. Bigmouth buffalo (I. cyprinellus), black buffalo (I. niger) and bigmouth x black hybrid buffalo when stocked at 100 per acre with 1,600 and 2,000 catfish did not compete to any extent for supplemental feed. W. Guthrie Perry, Jr., James W. Avault, Jr.
Pages 91-98 |
1975 |
Culture of Rainbow Trout in Combination with Over-Wintering Channel Catfish in Mississippi The feasibility of raising rainbow trout with Dver·wintering channel catfish in 0.04 ha (0.1 acre) ponds was examined. Three treatments with three replications were used; (1) 200 rainbow trout fed three percent offish weight per day, (2) 100rainbow trout and 75 charmel catfish fed three percent of trout weight per day, (3) 100 rainbow trout and 75 channel catfish not fed. Trout grown alone showed slightly higher gains than those grown with catfish and receiving feed. and were statistically significant (P<.05). Roland E. Reagan, Jr., H. Randall Robinette
Pages 99-101 |
1975 |
This study was designed to obtain population estimates of largemouth bass in 703-acre Forrest Lake, Missollri, and also to compare population estimates obtained using electrofishing and tournament angling as recapture methods. A total of 283 electroshocked bass was marked with floy tags during September 30--October 4, 1974. Recaptures obtained during a two-day (October 12-13, 1974) bass fishing tournament yielded a population estimate of 1,203 bass over 250mm (10 in) in total length. During October 15-17, 1974. Gary D. Hickman, Kerry W. Hevel
Pages 102-105 |
1975 |
Estimating Largemouth Bass Populations in Reservoirs from Catches in Angling Tournaments We estimated populations of largemouth bass (Micropter salmoides) 12 inches tong or longer in total length by mark and recapture, using angling tournament catches on 28,200-acre Beaver Lake in 1974, and tournament catches and a supplemental creel census on 45,440-acre Bull Shoals Lake in 1975. Population estimates were 55,450 in Beaver Lake and 30,800 in Bull Shoals Lake. These estimates were in good agreement with those based on mark-recapture samples taken each spring by electrofishing near shore, and were correlated with harvest when applied to the lower reaches ofeach lake. Larry R. Aggus, William C. Rainwater
Pages 106-114 |
1975 |
Dispersal of Tournament Caught Bass from a Central Release Point Largemouth bass caught by fishermen during the March, 1975 B.A.5.S. fishing tournament on Toledo Bend Reservoir were tagged and released from a central site to measure dispersal and recapture rate. Dispersal of bass durining the four months following the tournamament ranged between 0 and .5 miles. The majority of the recaptured fish (93.6 percent) were caught within 2 miles of the release site. A total of 16.7 percent of the released fish was caught by fishermen during the study period. Kenneth E. Lantz, Dudley C. Carver
Pages 115-118 |
1975 |
A Mark-Recapture Study on Largemouth Bass Used in Conjunction with a Creel Survey A mark-recapture study used in conjunction with a roving creel survey utilizing non-uniform probability sampling was conducted in two 1,000 acre study areas on Lake Okeechobee. In one study area, 472 largemouth bass 216mm and greater total length were tagged and released prior to the creel survey. In the other study area, 201 largemouth bass 241mm and greater total length were tagged and released prior to the creel survey. Of 48 total recaptures from both years, only two fish had moved outside the creel survey area. Dennis E. Hammond, Lothian A. Ager
Pages 119-125 |
1975 |
Age and Growth of Three Black Bass Species in Pickwick Reservoir The age and growth of 454 smallmouth bass, 371 largemouth bass, and 119 spotted bass were determined. When compared to other bodies of water smallmouth bass growth was exceptional, while largemouth bass and spotted bass growth was relatively slow. Distinct sexual differences in growth were not shown; however, sexual differences in longevity and survival were noted. Length-weight relations were calculated for each species and sex from 506 smallmouth bass, 414 largemollth bass, and 134 spotted hass specimens.
Pages 126-134 |
1975 |
Standing Crop, Success and Harvest in a Trophy Bass Lake, Lake Jackson, Florida The fish population of Lake Jackson was sampled over a three year period. The standing crop estimate was 971bs. 11 oz. per acre with largemouth bass comprising 36.7% of this total. Evidence is presented indicating the possibility oran overcrowded bass population. A (Tee) survey, conducted during: the last year of the study, documented intense fishing pressure and high harvest in Lake Jackson. Largemouth bass comprised an unusually high proportion of the effort (71.6%) and harvest (41.5%), with one trophy bass (8Ibs.> landed for each 13 acres of lake surface.
Pages 135-141 |
1975 |
Effects of Water Velocity on Activity Patterns of Juvenile Striped Bass The activity of 10, 25, and 50-mm juvenile striped bass exposed to water velocities ranging from static to 27 cm/sec was analyzed to determine mobility, feeding response, positional orientation, and group interaction. Increased water velocity reduced the area traveled per unit time. Presence of food also reduced the area traveled. Rheotaxis, the orientation of a swimming fish with respect to the direction of stream flow, was variable at low velocities.
Pages 142-151 |
1975 |
Striped bass were stocked in the Choctawhatchee River System from 1968-1975. Abundance restllts are reported for seines, trawls, and gill nets. Striped bass accounted for 1.75% and 1.44% of the number and weight, respectively, of all fishes caught in 36 months of gill netting. The mean catch of striped bass in trawls was .070 fish per tow and in seines .094 fish per haul. Condition, growth rates, and stomach contents were similar to those reported in other studies. Melissa Wigfall, James M. Barkuloo
Pages 152-161 |
1975 |
Contribution of Striped Bass to the Fishery of Lake of the Ozarks, Missouri Lake of the Ozarks, a 60,000 acre reservoir built in 1931 by the Union Electric Company in west-central Missouri, was chosen for an introduction of striped bass since it offered the best chance for establishing a naturally perpetuating fishery in Missouri. Fingerling striped bass were reared and stocked each year from 1967 to 1974 with the exception of1972. The effects of these introductions upon the existing fishery were monitored by a creel census conducted from March to November, 1967-1973. Fishing pressure in the two census areas ofthe lake ranged from 35.5 to 63. Willis D. Hanson, Joe G. Dillard
Pages 162-167 |
1975 |
Previously reported meristics, made from small specimens of these fishes, were found to be inadequate for positive indentification; therefore, new methods and means of measurement were investigated. Measurements were taken from 214 white bass Marone chrysops (Raflnesque), 224 striped bass Marone saxatilis (Walbaum), and 204 hybrids (striped bass xwhite bass) from six upstate South Carolina reservoirs. The fish were from numerous year classes and both sexes. Specimens ranged in length from 127mm. to 889mm. and weighed from 23 grams to 8,172 grams.
Pages 168-171 |
1975 |
Population Dynamics of White Bass in Beaver Reservoir, Arkansas Age and growth, mortality and population structure of white bass from Beaver Reservoir were studied. The number of scale radii increased with age of fish and were useful in the identification of annuli. Growth histories for year classes 1958-1970 showed increased growth during the reservoir formation. Analysis of growth data by the von Bertalanffy growth formula indicated that the postimpoundment white bass attained larger asymptotic lengths than the preimpoundment fish. The factors influencing the asymptotic size were discussed. Rama R. Yellayi, Raj V. Kilambi
Pages 172-184 |
1975 |
Recreational Catches of Four Species of Groupers in the Carolina Headboat Fishery A recreational fishery for semitropical reef fishes has developed over the past 12 years off the North Carolina and South Carolina coasts. About 30 headboats fishing from coastal cities transport anglers to the fishing grounds daily for a fee. The faster vessels regularly fish selected locations on the edge of the Continental Shelf 40 to 50 miles offshore while the slower ones fish coral patches and rocky outcroppings closer inshore. Gene R. Huntsman, Robert L. Dixon
Pages 185-194 |
1975 |
Spotted Seatrout in Coastal Waters of Georgia Various aspects of the life history of spotted seatrout in Georgia were studied. Females comprised 63.2 per cent and males 36.8 per cent of all fish examined. Spotted seatrout moved from the shallow waters of the estuaries to deeper waters in the creeks and rivers during periods ofhigh and low water temperature. Spawning occurred in the shallow waters in all sectors of the eshlaries including the beaches near inlets. Food items found in the stomachs of spotted seatrout consisted of 53.9 per cent fish, 44.9 per cent shrimp and 0.8 per cent squid.
Pages 195-207 |
1975 |
The Effects of 1973 Spring Floodwaters on Oyster Populations in Louisiana A total of 122,700 acres ofleased oyster bottoms were adversely affected by the flood waters of 1973; this represented 68 percent of the leased oyster grounds in Louisiana. Additionally, much orthe public natural "Oyster Seed Grounds" were subjected to unusually low salinities, siltation, and vegetation overburden; this resulted in loss of a portion of the 1973 seed oyster crop. Ronald J. Dugas, William S. Perret
Pages 208-214 |
1975 |
Blue crabs, Callinectes sapidus, stocked in cages at two different densities both with and without artificial habitats were compared for growth and survival in a power plant discharge canal and in a pond. Survival was higher for crabs in the pond but growth was significantly greater for those in the discharge canal. Artificial habitats increased survival of crabs cultured in the discharge canal but had no effect on those caged in the pond. Nick C. Parker, Rennie Holt, Kirk Strawn
Pages 215-222 |
1975 |
Susceptibility of Threadfin Shad to Impingement Threadfin shad impingement at 13 Tennessee Valley Authority electric generating plants from August 1974 through July 1975 was analyzed to assess mortality resulting from low water temperature. Concurrent laboratory experiments were conducted to evaluate the ability of cold-stressed threadfin shad to avoid impingement. Temperatures of 12°C stressed fish in the laboratory, while those below HOC caused high impingement mortality. At 5 of12 fossil-fuel plants, 90 percent or more orthe annual threadfin impingement occurred when water temperatures were below lOoC. J. S. Griffith, D. A. Tomljanovich
Pages 223-234 |
1975 |
Seasonal Occurrence and Diversity of Fish in a Heated Discharge Channel, Tennessee River The fish population in the heated discharge channel from Colbert Steam Plant on the Tennessee River was sampled from January 1972 to December 1973 to determine the effects of temperature on species composition, relative abundance, and diversity. Electrofishing (108 samples) and gill netting (36 samples) yielded a total of 34 species; median number of species per sample for each type ofgear was nine.
Pages 245-247 |
1975 |
Interactions of Blue Tilapia and Largemouth Bass in a Power Plant Cooling Reservoir In the presence of a dense population of blue tilapia, the population of northern largemouth bass declined in three years to one-third its 1972 abundance in Trinidad Lake, Texas. A pond experiment with Florida largemouth bass indicated that bass failed to reproduce sllccessfully at a tilapia density of 2000 Ib/A, but at 1000 Ib/A some bass spawning occurred. Trends in gonosomatic indices suggest that eggs were retained by bass at high tilapia densities. Carlton R. Hall, Raymond D. Germany, Richard L. Noble
Pages 247-251 |
1975 |
The Use of Isolation Coves in Assessing Muskellunge Stocking Mortality A method to determine short term muskellunge stocking mortality by using isolation coves is discussed. The method allows for free movement and feeding of muskellunge while restricting lakeward movement. Mortality of muskellunge was readily determined with the use of SCUBA. Stocking mortality due to stress of handling and transportation was considered minimal. Observations indicate that future stocking of muskellunge be made in areas of extensive weed cover.
Pages 251-253 |
1975 |
An 11-Year Summary of Fish Disease Cases at the Southeastern Cooperative Fish Disease Laboratory An 11-year summary of fish disease case work at the Southeastern Cooperative Fish Disease Lahoratory is presented. A total of 1,573 cases were examined. Approximately 61 percent of these cases occurred in April through September with June having the greatest number. Viral cases, primarily channel catfish vims, were diagnosed from June through September. Bacterial organisms were diagnosed in 27 percent of the cases and were most prevalent from April through September. Aeromonas hydrophila or Flexibacter columnaris were involved in k2.2 percent of the hacterial cases.
Pages 254-260 |
1975 |
Survey of Success and Owner Management of North Alabama Ponds One Acre and Less in Size To determine the extent of pond owner management and the condition of balance of the fish population during the first 2 years of fishing in small ponds, 40 ponds were randomly selected for study from ISO ponds 1.0 acre or less in size stocked in the 1971-72 stocking season. Only five ponds contained balanced Hsh populations both study years. Primary factors aHecting fish population balance were fertilization, livestock utilization, competitive species, severe water level reduction or complete loss of water, and fish kills. Gerald R. Hooper, William C. Reeves
Pages 260-264 |
1975 |
Channel catfish were stocked in 16 Alabama state-owned and managed public fishing lakes in an effort to create an additional sport fishery. The catfish harvest was generally low the first year after stocking with 100 catfish fingerlings per acre in an established bass-bluegillredear population. The harvest increased during the second year.
Pages 265-272 |
1975 |
Astudy was made on the growth and survival rates, sex ratios, and vulnerability to angling ofthe green sunfish redear sunfish ( (G X R) hybrid as compared with its reciprocal cross and parental species. The G x R hybrid had the highest mean annual absolute growth rate while the redear sunfish 0 X green sunfish C; (R x G) hybrid had the highest mean annual relative growth rate. The G x R hyhrid generally had the highest mean annual survival rate, while the green sunfish had the lowest. The sex ratios were: G x R hybrids. 99% males; R x G hybrids. 88% males; green sunfish. E. B. Henderson, B. G. Whiteside
Pages 273-278 |
1975 |
Karmex Herbicide with Fertilization and Aeration to Control Filamentous Algae in Hatchery Ponds Six 0.10-acre (0.04 ha) hatchery ponds containing striped bass flngerlings were treated with Karmex herbicide in an effort to control filamentous algae composed mainly of the genera Pithophora and Spirogyra. Ponds treated were fertilized and aerated immediately alter application of Karmex. Shortly after treatment with Karmex, large mats of filamentous algae floated to the surface, decayed, and were broken into fragments by agitation from aerators. The fragments settled to the pond bottoms.
Pages 279-281 |
1975 |
Cellulase Activity in the Stomachs of Freshwater Fishes from Texas The occurrence of cellulase enzyme activity was examined in the stomachs of Texas fishes representing 26 species. Comparison ofthe results obtained from enzyme studies with food habits indicated that the two were independent. A hypothesis that the presence of certain enzymes might be correlated with black peritoneum in fish (McAllister 1959) must be rejected with regard to cellulase based on the results of this study.
Pages 282-287 |
1975 |
Aerial Surveillance to Monitor Water Quality in Catfish Ponds Remotely sensed data and ground truth data were collected simultaneously from 16 experimental ponds during 6 days in June and July, 1974. Color infrared images were taken with hand-held 35mm cameras from single engine aircraft. Numerical color values for pond color were obtained visually matching the pond color with a Munsell Color System chip which had a standardized numerical value assigned to it. Ground truth data involved the determination of 14 chemical, physical, and biological parameters. H. Randall Robinette, Don Finnie, Frank D. Whistler, Judy Young, W. Frank Millner, Tim Cannon
Pages 287-293 |
1975 |
Cost/Benefit Analysis of a Catchable Rainbow Trout Fishery in Texas An evaluation of stocking catchable rainbow trout, Salmo gairdneri, in a section of the Brazos River was made in 1972-73 to determine if trout stocking is an economically and recreationally justifiable fishery management technique in Texas. A creel survey to measure fishing pressure and harvest, gross annual expenditures, and net economic value of the fishery was made before and after trout introduction. Benefits, in terms of increased harvest and utilization, were found to be substantially higher than the cost of stocking catchable rainbow trout.
Pages 293-300 |
1975 |
Angler Oriented Objectives of an Aquatic Weed Control Program Chiekahominy Reservoir, Virginia, was treated with a mixture of herbicides diquat and endothall to control obnoxious growths of Egeria densa Planchon. Herbicides were undetectable in water by the 16th day after treatment. Herbicides accumulated in plant tissue at levels higher than those in the water. Only diquat accumulated in hydrosoils. Diquat levels in hydrosoils increased as levels in plants and water decreased. All diquat had dissipated from hydrosoils after two years. Neither herbicide concentrated in edible fish flesh. Charles R. Berry, Jr., Carl B. Schreck, Scott Van Horn, Richard Strange
Pages 301-309 |
1975 |
Analysis of Angler Preferences and Fisheries Management Objectives with Implications for Management Fisheries managers have long operated under the assumptions that time spent fishing (angler-days) or pounds or numbers of fish caught (maximum sustained yield) were accurate measures of fisheries output. However, many fisheries managers today advocate development of a multidimensional output measure which would incorporate social, aesthetic, and psychological factors. The present srndy was undertaken to delineate and determine the relative importance of 10 items affecting the quality of angling as perceived by Virginia fee-fishermen. Ed L. Hampton, Robert T. Lackey
Pages 310-316 |
1975 |
Spawning of the Striped Bass in the Tar River, North Carolina Spawning of striped bass in the Tar River was studied in 1975 and results were compared with a similar study done in 1965. Egg samples indicated a significant increase in spawning activity probably due in part to an increased population established by stocking. More favorable temperatures in 1975 also resulted in an extended period of peak spawning. The location of major spawning grounds based on egg samples was found to cover a 25 mile span of river between River Mile 60 and 85. James W. Kornegay, Earl T. Humphries
Pages 317-325 |
1975 |
Movements ot the Redbreast Sunfish in Little River, Near Raleigh, North Carolina Recoveries of 189 redbreast sunfish (Lepornis auritus) tagged in Little River, North Carolina, indicated that this species is moderately mobile. Upstream movements predominated among fish recaptured within 60 days after their release in April and May. The extent ofmovement ofmales and females was about equaL On the basis ofmeasurements at release and recapture, average annual increase in size was 2.4 cm in total length and 48.0g in weight. The estimated annual harvest by sport fishermen was 14.7%. Robert G. Hudson, F. Eugene Hester
Pages 325-329 |
1975 |
Differences in Growth and Catchability of Natural Bass Populations in Florida Largemouth bass collected from selected Florida locations and stocked in hatchery ponds were studied for growth and catchability differences. Data indicates that some populations grow faster than others and that females grow faster than males. Experimental fishing data indicates that some populations show trends towards greater catchability, but no one population was shown significantly more catchable. Joe E. Crumpton, Stephen Lee Smith
Pages 330-336 |
1975 |
Monthly Food Habits of Various Size Groups of Black Crappie in Lake Okeechobee Concurrent with other life history investigations of black crappie, Pomoxis nigromaculatus (LeSeuer), in Lake Okeechobee, monthly examinations of stomach contents were made. Three food items--amphipods, oppossum shrimp, and fish--comprised the bulk of the diet. A change in diet occurred in early winter when the occurrence and numberoftendipeds dropped to a very low level, and again in late srping to early summerwhen tendipeds began to comprise a substantial portion ofthe diet.
Pages 336-342 |
1975 |
An Evaluation of Steel Traps for Taking Fur Animals in Coastal Louisianal During the winters of 1972-73 and 1973-74 an evaluation was made ofthe effectiveness ofthe leg-hold and killing type (Conibear) trap for taking fur animals in coastal Louisiana. The leg-hold trap caught significantly more nutria and raccoons than the Conibear trap. However, the killing type trap appeared to be more effective for taking muskrats in flooded marshes. Approximately 92 percent of the animals caught in the Conibear were killed by the trap, only 15.8 percent died in the leg-hold. Thirty percent ofthe nutria taken in the leg-hold trap were undersize and released. A. W. Palmisano, Howard H. Dupuie
Pages 342-347 |
1975 |
Impact of Site Preparation on Flatwoods Wildife Habitat Habitat differences 9 years after planting of slash pine are compared for three levels of site disturbance in a north Florida flatwoods. Observed wildlife abundance is discussed in light of structural (quality, occurrence and stratification) and nutritional habitat differences. Where grasses and forbs were most productive (low site preparation intensity), ground arthropods, small mammals, herhivores, birds, and insectivores were most abundant. Increased site preparation accelerated pine overstory and shrub midstory development with greater foliage arthropad abundance. Larry D. White, L. D. Harris, J. E. Johnston, D. G. Milchunas
Pages 347-353 |
1975 |
Measurement of the quality ofwildlife habitat is a necessity in planning and analyzing water resource projects. A methodology that provides a measure of habitat quality must consider the following factors: 1) the quantity of land uses, 2) the degree of interspersion of land uses, and 3) the condition of land management. A computerized methodology that considers each of these factors is provided for estimating habitat quality and evaluating: the impact of proposed water resource development alternatives. Richard H. McCuen, Gene A. Whitaker
Pages 354-364 |
1975 |
Pesticide Residues in Beaver and River Otter From Alabama Tissue samples from beaver and river otter taken by trappers mostly from southeastern Alabama during January through March 1973 and 1974 were subjected to pesticide residue analyses. Residues found were Mirex, p.p' DDT, p.p 'DDE, p.p 'DDD, Heptachlor epoxide, Endrin, Dieldrin, Toxaphene and PCB as Aroclar 1260. The occurrence of Mirex in 14 of 19 river otter taken in 1974 may have resulted from large area aerial application of Mirex for fire ant control. Edward P. Hill, Johnny W. Lovett
Pages 365-369 |
1975 |
Response Of Japanese Honeysuckle to Management in the Arkansas Ozarks Honeysuckle planted in 1968 consistently yielded more than 2,000kg of leaves and twigs per ha after 1972. Fertilization with N substantially increased total vegetative yields and crude protein content of leaves. Utilization by deer was highest when acorns were scarce and when snow covered the ground. Despite high yields, there was evidence than an effective means of weed control would be necessary to prevent native woody species from eventually suppressing the honeysuckle. Mowing was not sufficient control, and spraying with 2,4,5-T killed honeysuckle as well as native woody species. Charles A. Segelquist, Mitchell J. Rogers, Fred D. Ward
Pages 370-373 |
1975 |
Dispersal and Adjustment to Habitat of Restocked Wild Turkeys in Georgia Range parameters of 16 wild turkeys (Meleagris gallopavo) restocked in a Georgia Piedmont habitat were evaluated folloWing early spring releases. Turkeys were tracked by radio telemetry. On 152 occasions, they were radio-located every two hours all day; other radio and visual locations were determined randomly for a total of 1,850. Turkeys were released in what was considered to be the best habitat; their activities remained oriented around that area throughout the study. Ranges increased throughout the study and turkeys had adjusted to their environment within five weeks after release. Neal F. Eichholz, R. Larry Marchinton
Pages 373-378 |
1975 |
Interactive feeding among a group of vertebrates in the Great Smoky Mountains National Park was simulated. Consumer density, biomass production, consumer consumption rates, and seasonal food habits of adults of each species were calculated using field or literature values. The consumers included the European wild hog, black bear, raccoon, wild turkey, white-tailed deer, three sciurid species, and several rodents. The sciurids and rodents were considered as two respective canonical groups making a total ofseven consumer groups.
Pages 378-391 |
1975 |
Starch Gel Electrophoresis for the Study of Population Genetics in White-Tailed Deer Methods for the collection, preparation and extraction of tissues of white-tailed deer (Odocoileus drginianus) are given, Electrophoretic technique, buffers, gel preparation and banding patterns for 27 proteins encoded by 28 stnlctura) loci are described. In a survey of 400 deer from the Savannah River Plant, nine loci were shown to be polymorphic. The potential use ofpopulation genetics information for wildlife management programs is discussed. Michael N. Manlove, John C. Avise, Hilburn O. Hillestad, Paul R. Ramsey, Michael H. Smith, Donald O. Straney
Pages 392-403 |
1975 |
Nutrient Content and Yield of Burned or Mowed Japanese Honeysuckle Burning reduced the dense growth between 3-year-old Japanese honeysuckle plants and prevented the resprouting of runners. Mowing removed the dense accumulation of vines, but the severed runners resprouted to create a uniformly dense carpet. Crude protein of foliage was highest on the burned plots, but neither calcium nor phosphorus were significantly affected by the treatments. John J. Stransky, James N. Hale, Lowell K. Halls
Pages 403-406 |
1975 |
Notes on the Reproductive Biology and Captive Propagation of the American Alligator Wild captured adult alligators (Alligator mississippiensis) over a 4 1/2 year period exhibited a nesting rate of 50 percent. Clutch size averaged 39.5 eggs per nest. Fertility rates averaged 75.4 percent. Successful stocking rates ofone male to four females were achieved in a one-half acre enclosure. Pen construction methods and maintenance techniques were implemented to simulate natural marsh conditions, thereby encouraging breeding and contributing to the health of the alligators.
Pages 407-415 |
1975 |
Status and Ecology of Bald Eagles Wintering in Oklahoma Aerial and gronnd censuses of bald eagles (Haliaeetus leucocephalus) wintering in Oklahoma indicate a minimum population in midwinter of almost 600 eagles. The northern bald eagle (H. l. alascanus) is the primary subspecies found in Oklahoma. Eagles generally begin arriving in October, their populations peak in January, and most have departed by mid March.
Pages 415-423 |
1975 |
The Status of the Bald Eagle in Florida 1972-1975 During a three year study 282 successful nesting pairs of southern bald eagles (Haliaeetus leucocephalus leucocephalus) produced 404 young at a rate 0£1.43 young per successful nest, and 0.82 per active territory. This is similar to productivity report by Spruntet al (1973) for a 12 year study of eagles nesting in the Everglades. Production of young per active territory in the South Florida Region (report by Spruntet all973) was 0.73, for this survey it was 0.65. Stephen A. Nesbitt, Richard Roth, William B. Robertson, Jr.
Pages 424-428 |
1975 |
Endangered Chiroptera of the Southeastern United States Biologists consider four southeastern United States bat taxa to be endangered (in danger of extinction throughout all or a significant portion of their range). They are Myotis sodalis (Indiana bat), Myons grisescens (gray bat), Plecotus townsendii virginianus (Virginia big-eared bat), Plecotus townsendii ingens (Ozark big-eared bat). Causes of population declines include loss of habitat, direct killing, and disturbances to hibernating and maternity colonies.
Pages 429-433 |
1975 |
Observations and Suggested Management Practices for the Endangered Delmarva Fox Squirrel The Delmarva fox squirrel (Sciurus niger cinereus) and the gray squirrel (Sciurns carolinemis) occupied nest boxes placed in four separate woodlots on Maryland's Eastern Shore. During each season, a large proportion (42%-58%) of the boxes were not occupied, indicating that a lack of nesting sites is not limiting the abundance of Delmarva fox squirrels. The status of the Delmarva fox squirrel at all four sites is precarious. Management of the Delmarva fox squirrel must be based on the best available knowledge.
Pages 433-440 |
1975 |