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Ecology and Evolutionary Biology Commons™
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Articles 1 - 30 of 33
Full-Text Articles in Ecology and Evolutionary Biology
Variation In Pappogeomys Castanops (Geomyidae) On The Llano Estacado Of Texas And New Mexico, Robert C. Dowler, Hugh H. Genoways
Variation In Pappogeomys Castanops (Geomyidae) On The Llano Estacado Of Texas And New Mexico, Robert C. Dowler, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Nongeographic and geographic variation in the yellow-cheeked pocket gopher, Pappogeomys castanops, were analyzed in specimens collected in northwestern Texas and eastern New Mexico. Univariate and multivariate methods of analysis were utilized to assess variation in morphometric characters among 12 samples of P. castanops. Because of significant variation with age, only adult specimens were used in analyses. Adult males were significantly larger than females in all 13 characters studied. Our analyses of geographic variation reveal that those specimens previously assigned to the subspecies P. c. simulans are not sufficiently distinct to warrant subspecific designation.
Predation Of Upland Game And Its Management, Roger Wells
Predation Of Upland Game And Its Management, Roger Wells
Great Plains Wildlife Damage Control Workshop Proceedings
There is probably no greater topic that elicits greater emotion in public wildlife discussions than that of predation. A variety of groups each with their own particular special interest surround the topic.
Some advocate complete protection of predators on the premise that their activities merely result in a "balance of nature." The opposite viewpoint argue just as strongly for the total elimination of Predators of valued wildlife in order to have greater number for man's enjoyment.
Freshwater Wetlands : Their Relevance To The Critical Areas Program Of The State Planning Office, Timothy Zorach
Freshwater Wetlands : Their Relevance To The Critical Areas Program Of The State Planning Office, Timothy Zorach
Maine Collection
Freshwater Wetlands : Their Relevance to the Critical Areas Program of the State Planning Office
by Timothy Zorach : A Report Prepared for the Maine Critical Areas Program, State Planning Office, 184 State Street, Augusta, Maine 04333. November 1979
Planning Report # 70.
Contents: Introduction / Wetland Classification / Ecology of Freshwater Wetland Ecosystems in Maine / Life History of Wetlands / Wetland Management / Freshwater Wetland Evaluation / References Cited and Selected Literature
Part II: A Trial Inventory and Identification of Significant Freshwater Wetlands in the Presumpscot River Basin, Saco River Basin and Associated Coastal Drainage Basins.
Survey Of Vegetation And Elevational Relationships Within Coastal Marsh Transition Zones In The Central Atlantic Coastal Region : Final Report, John D. Boon, Donna M. E. Ware, Gene M. Silberhorn
Survey Of Vegetation And Elevational Relationships Within Coastal Marsh Transition Zones In The Central Atlantic Coastal Region : Final Report, John D. Boon, Donna M. E. Ware, Gene M. Silberhorn
Reports
This report contains the findings of a one-year botanical field study of the marsh to uplands vegetational transition zone at selected sites within the Central Atlantic Coastal Region of the United States. The latter region is herein defined to include the coasts of Delaware, Maryland, Virginia, and North Carolina. To obtain results representative of the various coastal environments and associated wetlands types found within this region, five primary sites and one to four secondary sites in the vicinity of each primary site were chosen for detailed investigations.
Structure Of A Subtidal Benthic Community Near Cape Charles, Virginia, R. Michael Ewing
Structure Of A Subtidal Benthic Community Near Cape Charles, Virginia, R. Michael Ewing
Biological Sciences Theses & Dissertations
Species composition, distribution, and abundance of benthic invertebrates of a subtidal community were examined at a location on the lower Delmarva Peninsula near Cape Charles, Virginia. Macrobenthos was sampled quarterly between June, 1977 and June, 1978 at nine sites along a transect in Old Plantation Creek and the adjacent offshore area. Spatial and temporal patterns of numerically important species are discussed.
Sampling sites and species were grouped by a numerical classification strategy which consisted of the Bray-Curtis similarity measure and group-average clustering. Three faunal assemblages were identified with the aid of constancy and fidelity nodal analyses: (1) a tidal creek …
Distributional Ecology Of Vegetation In The Vernal Pools Of The Santa Rosa Plateau, California, John A. Rosario
Distributional Ecology Of Vegetation In The Vernal Pools Of The Santa Rosa Plateau, California, John A. Rosario
Loma Linda University Electronic Theses, Dissertations & Projects
Interpool distribution studies of 10 vernal pools on the Santa Rosa Plateau found area to be the best single predictor of species richness in each type of regression model evaluated. Area predicted most accurately in a mixed linear-curvilinear regression model (y = a + b log x). Area appeared to reflect ecologic diversity, because multiple linear regression models provided better predictions of species richness using combinations of physical characteristics which excluded area from the regression equation. In addition, species turnover was demonstrated in a single vernal pool that was evaluated.
Intrapool distribution was studied along a soil moisture/microtopographic gradient in …
The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard
The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard
OES Theses and Dissertations
The ichthyoplankton of Hempstead Bay estuary was sampled from December 1972 to mid March 1974. Eleven stations were sampled by towing a 0.5 meter diameter plankton net. Eggs were most abundant during June and July with an average concentration calculated to be above 5,500/100m3. Egg densities were the lowest during the fall and winter. Larvae were most frequently taken from March through July with densities varying greatly among the samples. The eggs of Brevoortia tyrannus, Anchoa mitchilli, Tautoga onitis, Tautogolabrus adspersus, and Scophthalmus aguosus and the larvae of Menidia menidia, Ammodvtes hexapterus and Pseudopleuronectes americanus constituted most …
Seasonal Feeding Habits Of The River Otter (Lutra Canadensis) In Ditches Of The Great Dismal Swamp, Ronnie M. Pierce
Seasonal Feeding Habits Of The River Otter (Lutra Canadensis) In Ditches Of The Great Dismal Swamp, Ronnie M. Pierce
Biological Sciences Theses & Dissertations
To determine the seasonal feeding habits of the river otter (Lutra canadensis) in the Great Dismal Swamp 209 scats were collected, from May 1977 to May 1978, and analyzed for content. Remains of crayfish were found with a frequency of occurrence of 82% while fish remains occurred in 62% of the scat. This is in direct contrast to previous studies (from other areas) which found fish with a greater frequency than crayfish. Fish consumption was believed to increase during periods of low water or low temperatures. Sunfish were represented most frequently and may be the preferred fish. Amphiuma remains …
Swimming As A Determinate To Immigration For Two Small Mammals In Coastal Virginia, Jeffrey Lewis Carter
Swimming As A Determinate To Immigration For Two Small Mammals In Coastal Virginia, Jeffrey Lewis Carter
Biological Sciences Theses & Dissertations
Small mammals were live trapped on the mainland and on an island located in the southeast corner of Virginia. The area was characterized by a mid-Atlantic coastal climate. White-footed mice (Perompsous fsucopus) were trapped on the mainland but not on the island, whereas meadow voles (Microtus psnnsylvimious) inhabited only the island. A series of swimming tests were performed in both the field and in the laboratory on both of these species to determine if swimming abilities could be the factor preventing Pszomysous from colonizing the island.
Both species of small mammals showed good swimming endurance in …
City Of Virginia Beach Marsh Inventory: Volume 2 Lynnhaven River, Lake Rudee, And Their Tributaries, Thomas A. Barnard, Damon G. Doumlele, Gene M. Silberhorn
City Of Virginia Beach Marsh Inventory: Volume 2 Lynnhaven River, Lake Rudee, And Their Tributaries, Thomas A. Barnard, Damon G. Doumlele, Gene M. Silberhorn
Reports
No abstract provided.
Essex County Tidal Marsh Inventory, Damon G. Doumlele, Gene M. Silberhorn
Essex County Tidal Marsh Inventory, Damon G. Doumlele, Gene M. Silberhorn
Reports
No abstract provided.
Spotsylvania And Caroline County Tidal Marsh Inventory Including City Of Fredericksburg, Arthur F. Harris Jr., Joseph C. Mizell, Gene M. Silberhorn
Spotsylvania And Caroline County Tidal Marsh Inventory Including City Of Fredericksburg, Arthur F. Harris Jr., Joseph C. Mizell, Gene M. Silberhorn
Reports
No abstract provided.
New Kent County Tidal Marsh Inventory, Damon G. Doumlele, Gene M. Silberhorn
New Kent County Tidal Marsh Inventory, Damon G. Doumlele, Gene M. Silberhorn
Reports
No abstract provided.
A Study Of Nongeographic Variation In Tatera Leucogaster (Mammalia: Rodentia) From Botswana, Pierre Swanepoel, Duane A. Schlitter, Hugh H. Genoways
A Study Of Nongeographic Variation In Tatera Leucogaster (Mammalia: Rodentia) From Botswana, Pierre Swanepoel, Duane A. Schlitter, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Specimens of Tatera leucogaster from six localities in Botswana were tested for variation with age, secondary sexual variation, and individual variation. Of the six age classes recognized, categories I, II, and III each formed their own group, whereas cat egories IV, V, and VI were not separable on a morphometric basis and were considered to be adults. Significant secondary sexual variation was found only in depth of braincase in which females were larger. The only character exhibiting unusually high individual variation was length of posterior palatal foramen. All other characters exhibited individual variation within acceptable limits.
A Systematic Review Of The Olive-Backed Pocket Mouse, Perognathus Fasciatus (Rodentia, Heteromyidae), Daniel F. Williams, Hugh H. Genoways
A Systematic Review Of The Olive-Backed Pocket Mouse, Perognathus Fasciatus (Rodentia, Heteromyidae), Daniel F. Williams, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Geographic variation in Perognathus fasciatus Wied and the identities of specimens of P. fasciatus and P. flavescens from areas of potential sympatry were investigated. Populations of P. fasciatus from the northern Great Plains, in areas with the highest amounts of precipitation, were the darkest colored and had proportionately the smallest auditory bullae. Size varied clinally in the Great Plains, with larger mice being found in the cooler, northern latitudes. Populations from the arid intermountain basins of Colorado, Utah, and Wyoming were largest in size, had the longest tails, were the palest in color, and had the largest bullae. Two races …
Nebraska Rainbow Trout, Nebraska Game And Parks, G. Zeurlein, L. Hesse, J. Seeb, L. Wishard
Nebraska Rainbow Trout, Nebraska Game And Parks, G. Zeurlein, L. Hesse, J. Seeb, L. Wishard
Nebraska Game and Parks Commission: Publications
Chapter 1 Lethal and Preferred Temperatures of Lake McConaughy Rainbow Trout Versus Domestic Strain Rainbow Trout By R. Vancil, G. Zuerlein and L. Hesse
Chapter 2 A Nitrifying Filter-Cooling Condenser System for Total Water Re-use in Cold-Water Fish Holding or Rearing Applications By L. Hesse, G. Zuerlein and R. Vancil
Chapter 3 Biochemical Genetic Analysis of Two Strains of Nebraska Rainbow Trout By J. Seeb and L. Wishard
The self-sustaining rainbow trout population living in Lake Mcconaughy and the North Platte River tributaries is unique to the Great Plains region. The population spends most of its adult life in the …
Sand Dune Project Stabilises Erosion, Department Of Agriculture, Western Australia
Sand Dune Project Stabilises Erosion, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Read how the Department of Agriculture's Soil Conservation Service and the Department of Conservation and Environment worked with the Rockingham Shire to upgrade the road and protect the sand dunes.
Niobrara-Missouri River Fishery Investigations, Larry W. Hesse, Gene Zeurlein, Roger Vancil, Leonard Koziol, Brad Newcomb, Leigh Ann Retelsdorf
Niobrara-Missouri River Fishery Investigations, Larry W. Hesse, Gene Zeurlein, Roger Vancil, Leonard Koziol, Brad Newcomb, Leigh Ann Retelsdorf
Nebraska Game and Parks Commission: Publications
The Niobrara River heads in the table lands of eastern Wyoming and flows 786 kilometers (km) eastward across Nebraska joining the Missouri River near the town of Niobrara, Nebraska. The Niobrara is the largest Missouri River tributary between the last two mainstem impoundments (Lake Francis Case and Lewis and Clark Lake). Fish movement up the Niobrara is prevented by Nebraska Public Power District's (NPPD's) Spencer Hydroelectric Dam, 63.3 km upstream from the river mouth. The lower reach of the river is turbid and carries a considerable load of sand, silt, and organic debris into the Missouri River. The mean annual …
Effects Of Channelization On Fish Populations Of The Cache River And Bayou Deview, Morris Mauney, George L. Harp
Effects Of Channelization On Fish Populations Of The Cache River And Bayou Deview, Morris Mauney, George L. Harp
Journal of the Arkansas Academy of Science
This study was designed to better understand the possible effects of channelization by comparing natural and previously channelized sections of the Cache River and Bayou DeView. Forty-five fish species were collected in natural reaches, but only 24 species were collected in channelized reaches. Cyprinus carpio and Dorosoma cepedianum constituted 40 and 20 percent of the total fish biomass in channelized reaches, respectively, but only 22 and 2 percent of the total biomass in natural reaches. The mean weight of total fishes and game fishes only per surface ha in natural sections were 276 and 46 kg, respectively, but these values …
Distributional Survey Of The Fishes Of Ten Mile Creek In Southeastern Arkansas, Carl D. Jeffers, Edmond J. Bacon Jr.
Distributional Survey Of The Fishes Of Ten Mile Creek In Southeastern Arkansas, Carl D. Jeffers, Edmond J. Bacon Jr.
Journal of the Arkansas Academy of Science
A survey of the fishes of Ten Mile Creek was conducted during 1976 to 1979. The ichthyofauna of Ten Mile Creek is typical of lowland drainage systems in southeastern Arkansas. Fifty-three species representing 13 families and 23 genera were collected. Etheostoma parvipinne was locally abundant in the headwaters, and other vulnerable or rare species included Notropls maculatus, Fundulus notti, Fundulus chrysotus, Erimyzon sucetta, Moxostoma poecilurum, and Lepomis punctatus. Eight specimens of Notropis hubbsi were collected.
Abundance, Diversity And Distribution Of Benthic Macro-Invertebrates In The Flat Bayou Drainage Area, Jefferson County, Arkansas, John D. Rickett
Abundance, Diversity And Distribution Of Benthic Macro-Invertebrates In The Flat Bayou Drainage Area, Jefferson County, Arkansas, John D. Rickett
Journal of the Arkansas Academy of Science
The main ditch of Flat Bayou Drainage in north central Jefferson County carries water southward into Plum Bayou which then shortly empties into the Arkansas River. Flat Bayou proper flows northward into Wabbaseka Bayou which in turn flows into the Arkansas River in northeastern Lincoln County. Two sites on the main ditch were sampled for physico-chemical parameters and benthic macroin vertebrates on 9 September, 7 October and 11 November 1978. No visible detrimental effects were attributed to physico-chemical characteristics. Thirty-one below-family taxa and 19 families were found in abundance from zero at one site and date to 3580 per m² …
Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister
Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister
Journal of the Arkansas Academy of Science
The diving capabilities of Nerodia erythrogaster flavigaster and Nerodia fasciata confluens were investigated and the results were compared with similar studies on Nerodia rhombifera rhombifera and Elaphe obsoleta obsoleta (Baeyens et al., 1978). In addition, morphological and hematological parameters contributing to underwater survival were examined. The duration of underwater survival for N. erythrogaster and N. fasciata was approximately one hour with no difference between the species. The lung volumes of the two species were also similar but were significantly less than lung volumes reported for E. obsoleta. There were no significant differences in hemoglobin concentration, red blood cell count or …
Additions To The Strawberry River Ichthyofauna, Henry W. Robison
Additions To The Strawberry River Ichthyofauna, Henry W. Robison
Journal of the Arkansas Academy of Science
No abstract provided.
Goldeye In The Black River, John K. Beadles
Goldeye In The Black River, John K. Beadles
Journal of the Arkansas Academy of Science
No abstract provided.
Cave Fauna Of Arkansas: Additional Invertebrate And Vertebrate Records, V. Rick Mcdaniel, Kenneth N. Paige, C. Renn Tumlison
Cave Fauna Of Arkansas: Additional Invertebrate And Vertebrate Records, V. Rick Mcdaniel, Kenneth N. Paige, C. Renn Tumlison
Journal of the Arkansas Academy of Science
No abstract provided.
Age And Growth Of White Crappie, Pomoxis Annularis Refinesque, From A Flood-Created Pond In Mississippi County, Arkansas, Stephen A. Sewell
Age And Growth Of White Crappie, Pomoxis Annularis Refinesque, From A Flood-Created Pond In Mississippi County, Arkansas, Stephen A. Sewell
Journal of the Arkansas Academy of Science
No abstract provided.
Unusual Concentration Of Scarlet Snakes, Keith B. Sutton, V. Rick Mcdaniel
Unusual Concentration Of Scarlet Snakes, Keith B. Sutton, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Wolf Howling And Its Role In Territory Maintenance, Fred H. Harrington, L. David Mech
Wolf Howling And Its Role In Territory Maintenance, Fred H. Harrington, L. David Mech
USGS Northern Prairie Wildlife Research Center
The wolf (Canis lupus) is a wide-ranging social carnivore with a complex spatial organization (MECH, 1972; 1973). The precise manner in which this organization is maintained is unknown, but territory advertisement using olfactory and acoustic modes seems to be involved.
The acoustic mode includes primarily howling. Within a wolf pack, howling may be useful to reassemble separated members (MECH, 1966; THEBERGE & FALLS, 1967), and may communicate information on individual identity, location, and other behavioral and environmental contingencies (THEBERGE & FALLS, 1967). Between packs, however, howling may serve to advertise territory, communicating the locations of packs and thus …
Notes On The Distribution Of The Ornate Box Turtle (Terrapene Ornata Ornata) In Arkansas, Lawana England
Notes On The Distribution Of The Ornate Box Turtle (Terrapene Ornata Ornata) In Arkansas, Lawana England
Journal of the Arkansas Academy of Science
No abstract provided.
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Journal of the Arkansas Academy of Science
No abstract provided.