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Full-Text Articles in Life Sciences

The Distribution, Abundance, And Habitat Use Of The Big Cypress Fox Squirrel, (Sciurus Niger Avicennia)., Danielle Munim Jan 2008

The Distribution, Abundance, And Habitat Use Of The Big Cypress Fox Squirrel, (Sciurus Niger Avicennia)., Danielle Munim

Electronic Theses and Dissertations

Human population growth and development reduce the area and quality of natural communities and lead to a reduction of populations of the species associated with them. Certain species can be useful indicators or "focal species" for determining the quality of ecosystem remnants and the required management practices. Tree squirrels are good models for studies on the effects of fragmentation because they depend on mature forests. The Big Cypress fox squirrel, (Sciurus niger avicennia), a state-listed Threatened subspecies endemic to south Florida, appears sensitive to habitat fragmentation and fire regime. This research aims to assess the conservation status of the Big …


Distribution An D Dispersion Patterns Of San Dhill Crane Flocks In The Platte River Valley, Brian Lorenz, Felipe Chavez-Ramirez Jan 2008

Distribution An D Dispersion Patterns Of San Dhill Crane Flocks In The Platte River Valley, Brian Lorenz, Felipe Chavez-Ramirez

Proceedings of the North American Crane Workshop

We evaluated sandhill crane (Grus canadensis) flock distribution and dispersion patterns along the Platte River Valley, Nebraska, in 2002-2003. The objectives were to: (a) determine the overall distribution and relationship between roosting and foraging flock numbers by bridge segments, (b) evaluate flocking characteristics in relation to abundance of cranes in different bridge segments and total abundance, and (c) correlate dispersion patterns and habitat use to period of migration, roost locations, and habitat types. Preliminary predictions included: foraging flock dispersions would be correlated with roost locations; greater numbers and larger flock sizes will be present in bridge segments with …


A Study On The Population Size And Natural History Of The Eastern Six‐Lined Racerunner, Aspidoscelis Sexlineata, In West Virginia, With Notes On Other Lizard Species, Emmy Johnson Jan 2008

A Study On The Population Size And Natural History Of The Eastern Six‐Lined Racerunner, Aspidoscelis Sexlineata, In West Virginia, With Notes On Other Lizard Species, Emmy Johnson

Theses, Dissertations and Capstones

Species will expand ranges through natural or human‐alterations. Such an occurrence has happened in West Virginia with Eastern Six‐lined Racerunner, Aspidsocelis sexlineata, a species that has been found to thrive in areas of high disturbance from humans. While found abundantly in other states, they are thought to occur only in the eastern panhandle of West Virginia (Morgan County) where they are believed to have come from Maryland via a railroad bridge. Without the bridge, the Potomac River forms a natural barrier between these two states. The objectives of my study were to determine the population size and natural history …


Bee-To-Bee Contact Drives Oxalic Acid Distribution In Honey Bee Colonies, Nicholas P. Aliano, Marion D. Ellis Jan 2008

Bee-To-Bee Contact Drives Oxalic Acid Distribution In Honey Bee Colonies, Nicholas P. Aliano, Marion D. Ellis

Department of Entomology: Faculty Publications

Nine divided hives were constructed to study the distribution of oxalic acid (OA). Experimental colonies were split into two equal, queenright sections with one of three divider types. The first divider allowed trophallaxis to occur between adult bees on each side, but did not allow bee-to-bee contact. The second divider did not allow trophallaxis or bee-to-bee contact. The third divider allowed both bee-to-bee contact and trophallaxis between the two sides. All three dividers allowed gas exchange of volatile materials. The objective was to investigate factors that contribute to the distribution of OA in a hive by monitoring Varroa destructor mortality. …


On The Relationship Between Mass And Diameter Distributions In Tree Communities, J. C. Stegen, Ethan P. White Jan 2008

On The Relationship Between Mass And Diameter Distributions In Tree Communities, J. C. Stegen, Ethan P. White

Biology Faculty Publications

It has been suggested that frequency distributions of individual tree masses in natural stands are characterized by power-law distributions with exponents near -3/4, and that therefore tree communities exhibit energetic equivalence among size classes. Because the mass of trees is not measured directly, but estimated from diameter, this supposition is based on the fact that the observed distribution of tree diameters is approximately characterized by a power-law with an exponent -2. Here we show that diameter distributions of this form are not equivalent to mass distributions with exponents of -3/4, but actually to mass distributions with exponents of -11/8. We …


Radiocarbon Evidence For The Importance Of Surface Vegetation On Fermentation And Methanogenesis In Contrasting Types Of Boreal Peatlands, J. P. Chanton, P. H. Glaser, L. S. Chasar, David J. Burdige, M. E. Hines, D. I. Seigel, L. B. Tremblay, W. T. Cooper Jan 2008

Radiocarbon Evidence For The Importance Of Surface Vegetation On Fermentation And Methanogenesis In Contrasting Types Of Boreal Peatlands, J. P. Chanton, P. H. Glaser, L. S. Chasar, David J. Burdige, M. E. Hines, D. I. Seigel, L. B. Tremblay, W. T. Cooper

OES Faculty Publications

We found a consistent distribution pattern for radiocarbon in dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and methane replicated across spatial and temporal scales in northern peatlands from Minnesota to Alaska. The 14C content of DOC is relatively modern throughout the peat column, to depths of 3 m. In sedge-dominated peatlands, the 14C contents of the products of respiration, CH4 and DIC, are essentially the same and are similar to that of DOC. In Sphagnum- and woody plant-dominated peatlands with few sedges, however, the respiration products are similar but intermediate between the 14C contents of …


Historic And Recent Distributions Of Elk In Nebraska, Kent A. Fricke, Michael A. Cover, Scott E. Hygnstrom, Scott R. Groepper, Hugh H. Genoways, Kit M. Hams, Kurt C. Vercauteren Jan 2008

Historic And Recent Distributions Of Elk In Nebraska, Kent A. Fricke, Michael A. Cover, Scott E. Hygnstrom, Scott R. Groepper, Hugh H. Genoways, Kit M. Hams, Kurt C. Vercauteren

Great Plains Research: A Journal of Natural and Social Sciences

Elk (Cervus elaphus) were historically found throughout North America but were extirpated from Nebraska and much of the Great Plains in the 1880s due to consumptive uses by settlers, miners, market hunters, and others. Elk began to reappear in Nebraska in the 1950s and 1960s, and established a stable, nonmigratory population that currently consists of seven herds and an estimated 1,400 individuals throughout western and central Nebraska. The reappearance and subsequent persistence of elk in Nebraska suggests there is adequate habitat to support a self-sustaining population. The general movement of elk eastward may lead to an eventual statewide …


Geographic Distribution: Sphaerodactylus Elegans Elegans (Ashy Gecko). Usa: Florida: Broward Co, Louis A. Somma, Kenneth L. Krysko Jan 2008

Geographic Distribution: Sphaerodactylus Elegans Elegans (Ashy Gecko). Usa: Florida: Broward Co, Louis A. Somma, Kenneth L. Krysko

Papers in Herpetology

FLORIDA: BRowARD Co.: Pembroke Pines: 1031 NW93rd Ave (26.0168833°N, 80.2695694°W; WGS84; elev. <1 m). 27 October 2007. Collected by Lisa A. Charlton. Verified by F. Wayne King, Florida Museum of Natural History, University of Florida. One neonate captured in Jackson sticky trap set to sample insects in an alee tree (Blighia sapida). UF 152418. New county record. Originally turned in to Division of Plant Industry (DPI), Florida Department of Agriculture and Consumer Services, Gainesville, Florida, on 31 October 2007; Entomology Log No. 8204. This nonindigenous gecko was flrst reported from Key West, Monroe County, Florida, more than 85 years ago (Stejneger 1922. Copeia [108]:56). Since that time the species has slowly expanded its range through other islands in the Florida Keys, and onto mainland Florida in Miami, Miami-Dade County (Carr 1940. Univ. Florida PubI. BioI. Sci. Ser. 3[1]:1-118; Krysko and Daniels 2005. Caribb. J. Sci.41:28-36.). On 11 September 1937, asingleSphaerodactylus e. elegans was collected in Port Everglades, Broward County, Florida (UF 183) and on 26 January 1963, another collected from inside a house in Miami, Miami-Dade County, Florida (UF 84234). This latest specimen is the third known mainland record in the continental U.S.


Contribution To The Distribution, Morphological Peculiarities, And Karyology Of The Greater Noctule, Nyctalus Lasiopterus (Chiroptera: Vespertilionidae), In Southwestern Turkey, Nuri̇ Yi̇ği̇t, Şafak Bulut, Ahmet Karataş, Pinar Çam, Fulya Saygili Jan 2008

Contribution To The Distribution, Morphological Peculiarities, And Karyology Of The Greater Noctule, Nyctalus Lasiopterus (Chiroptera: Vespertilionidae), In Southwestern Turkey, Nuri̇ Yi̇ği̇t, Şafak Bulut, Ahmet Karataş, Pinar Çam, Fulya Saygili

Turkish Journal of Zoology

The Greater Noctule, Nyctalus lasiopterus, was recorded from southwestern Turkey for the third time. The dorsal fur of the Greater Noctule, which also covers the underpart of the wing membrane, along with the forearm and propatagium, is uniformly dark brown. The cranium shows typical characteristics of the noctule bats. In addition to these, the exoccipital is convex and is markedly visible in the planar view of the skull. There is a small depression mid braincase. The dental formula is i: 2, c: 1, pm: 1, m: 3/i: 3, c: 1, pm: 2, m: 3 = 32. The diploid number of …


Distribution And Morphology Of Mauremys Rivulata (Valenciennes, 1833) (Reptilia: Testudines: Geoemydidae) In The Lake District And Mediterranean Region Of Turkey, Di̇nçer Ayaz, Abi̇di̇n Budak Jan 2008

Distribution And Morphology Of Mauremys Rivulata (Valenciennes, 1833) (Reptilia: Testudines: Geoemydidae) In The Lake District And Mediterranean Region Of Turkey, Di̇nçer Ayaz, Abi̇di̇n Budak

Turkish Journal of Zoology

Morphometric measurements and color-pattern features of 62 samples of Mauremys rivulata from the Lake District (Göller Bölgesi) and the Mediterranean Region of Turkey were compared. Between populations, males apparently differed in 10 characters and females in 12 characters (independent t-test), but coefficient of difference (CD) values for these characters were not significant, and sexes were combined into a single group and compared with Aegean M. rivulata with respect to morphometric features. The greatest straight carapace length (SCL) observed in a male and female Aegean specimen was 215.0 mm and 214.0 mm, respectively. This paper also provides the first record of …


Ptenoglossa Species (Mollusca: Gastropoda) Distributed Along The Turkish Coast Of The Aegean Sea, Bi̇lal Öztürk, Alper Doğan, Banu Bi̇tli̇s, Mesut Önen Jan 2008

Ptenoglossa Species (Mollusca: Gastropoda) Distributed Along The Turkish Coast Of The Aegean Sea, Bi̇lal Öztürk, Alper Doğan, Banu Bi̇tli̇s, Mesut Önen

Turkish Journal of Zoology

This study was performed to determine Ptenoglossa species (Mollusca, Gastropoda) distributed along the Turkish coastline of the Aegean Sea. The examination of samples, taken between 1995 and 2005 from various biotopes and depths up to 300 m, yielded 249 specimens and 130 shells, belonging to 33 ptenoglossate species, of which Monophorus thiriotae Bouchet 1984, Similiphora similior (Bouchet and Guillemot 1978), Cerithiopsis diadema Monterosato 1874, Cerithiopsis jeffreysi Watson 1885, Krachia tiara (Monterosato 1874), Punctiscala cerigothana (Sturani 1896), Melanella boscii (Payraudeau 1826), and Nanobalcis nana (Monterosato 1878) were unrecorded from the Turkish coasts. Furthermore, M. thiriotae and K. tiara are new reports …