Life Sciences Commons^™

Front Matter, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

Retention Of Passive Integrated Transponder (Pit) Tags For Individual Identification Of Warmwater Stream Fishes, Carol E. Johnston, Elizabeth B. Smithson

Southeastern Fishes Council Proceedings

No abstract provided.

Minutes, Business Meeting, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

News And Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

Regional Southeastern Fishes Council Reports, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

Table Of Contents Volume 10, Number Two, Spring 1999, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)

Looking Back: Cyclamate, Allan Mazur, Kevin Jacobson

RISK: Health, Safety & Environment (1990-2002)

The second in a series re-evaluating hazards identified in the 1950s and 60s.

Trends. Altered States And Genetically Altered Products: Psychological Crisis At Cartagena, Ibpp Editor

International Bulletin of Political Psychology

The author discusses the first comprehensive attempt to develop a global treaty that would regulate commerce in genetically altered products.

Trends. Evolutionary Theories, Iceland, And An Opportunity It Can't Refuse, Ibpp Editor

International Bulletin of Political Psychology

The author discusses a major Swiss pharmaceutical company that plans on investing in Icelandic deoxyribonucleic acid (DNA).

The Palms (Arecaceae) Of Sonora, Mexico, Richard S. Felger, Elaine Joyal

Aliso: A Journal of Systematic and Floristic Botany

This publication is an account of the palms (Arecaceae) in the state of Sonora in northwestern Mexico. Six native palm species in three genera are recorded for Sonora: Brahea with four species, and Sabal and Washingtonia each with one species. Relationships and taxonomy within Brahea, especially B. elegans, remain unresolved. Brief botanical descriptions, taxonomic synopses, local names, identification keys, conservation status and recommendations, and distributional and ethno- botanical information are provided for each species. Basionyms and types are cited. Distributions are documented with citations of nearly all herbarium specimens known to us from Sonora. Many palm populations in …

Wood Anatomy Of Agdestis (Caryophyllales): Systematic Position And Nature Of Successive Cambia, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Features in which Agdestis differs from Phytolaccaceae s. s. include presence of both libriform fibers and vasicentric tracheids (rather than one or the other); bands and strands of thin-walled apotracheal parenchyma (in addition to paratracheal scanty parenchyma}, and raylessness (also reported for Bougainvillea of Nyctaginaceae, a family close to Phytolaccaceae). Dimorphism in vessel diameter in Agdestis (narrow vessels like libriform fibers in diameter) is attributable to the lianoid habit. Packets of crystals coarser than typical for raphides occur idioblastically in Agdestis, as do raphides in Phytolacca. ln Phytolacca and in other Phytolaccaceae, one finds an unusual feature that …

Wood And Bark Anatomy Of Schisandraceae: Implications For Phylogeny, Habit, And Vessel Evolution, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

Qualitative and quantitative features are reported for mature wood and bark of two species of Kadsura and five species of Schisandra. Newly reported for the family are predominance of simple perforation plates (all species); presence of pit membrane remnants in vessels of first-formed secondary xylem; two to three series of pits per facet on tracheids; diffuse axial parenchyma (Kadsura); multiseri- ate rays more than three cells wide at the widest point (all species); ethereal oil cells in axial xylem; and certain details of comparative bark anatomy. Differences in wood anatomy between Illiciaceae and Schisandraceae are nearly all …

An Expanded Circumscription Of Bouteloua (Gramineae: Choridoideae): New Combinations And Names, J. Travis Columbus

Aliso: A Journal of Systematic and Floristic Botany

Cladistic analysis of nuclear ribosomal and chloroplast DNA sequences has revealed that the New World grass genus Bouteloua (Chloridoideae) is not monophyletic. Indeed, some species of Bouteloua are more closely related to species in other genera than to congeners. The problem was dealt with by expanding the circumscription of Bouteloua to include species formerly positioned in the satellite genera Buchloe (1 species), Buchlomimus/em> (1), Cathestecum/em> (4), Cyclostachya/em> (1), Griffithsochloa (1), Opizia (2), Pentarrhaphis (3), Pringleochloa (1), and Soderstromia(1). Thirteen new combinations and names were necessary. As here circumscribed, Bouteloua is monophyletic and comprises 57 species.

Glume Absence In The Orcuttieae (Gramineae: Chloridoideae) And A Hypothisis Of Intratribal Relationships, Eric H. Roalson

Aliso: A Journal of Systematic and Floristic Botany

This study addresses glume absence in tribe Orcuttieae. In Orcuttia califomica, O. inaequalis, and O. viscida, all spikelets possess two glumes except for the terminal spikelet of the inflorescence, which lacks both glumes. In O. pilosa and Tuctoria greenei the terminal spikelet lacks only the first (proximal) glume, whereas in O. tenuis, T. fragilis, and T. mucronata both glumes are developed on all spikelets. This is the first report of glume absence in species of Orcuttieae other than Neostapfia colusana, which has been long reported to lack both glumes on all spikelets. A hypothesis …

Laboulbeniales On Semiaquatic Heteroptera. Viii. Monandromyces, A New Genus Based On Autophagomeces Microveliae(Laboulbeniales), Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

A new genus of Laboulbeniales (Laboulbeniaceae: Stigmatomycetinae), Monandromyces, was described. Its type species, M. hemipteralis, was based on Autophagomyces hemipteralis. The latter, which parasitizes a riparian bug, a species of Microvelia (Heteroptera: Veliidae), was characterized by Roland Thaxter in 1931. Ten new species of Monandromyces- taken from members of three genera of Veliidae-were described as follows: M. australis, M. falcatus, M. polhemorum, M. protuberans, M. tenuistipitis, and M. umbonatus (on Microvelia spp.); M. neoalardi (on Neoalardus sp.); and M. elongates, M. longispinae, and M. pseudoveliae (on Pseudovelia spp.). Keys …

Vascular Flora Of The Liebre Mountains, Western Transverse Ranges, California, Steve Boyd

Aliso: A Journal of Systematic and Floristic Botany

The Liebre Mountains form a discrete unit of the Transverse Ranges of southern California. Geographically, the range is transitional to the San Gabriel Mountains, Inner Coast Ranges, Tehachapi Mountains, and Mojave Desert. A total of 1010 vascular plant taxa was recorded from the range,representing 104 families and 400 genera. The ratio of native vs. nonnative elements of the flora is 4:1, similar to that documented in other areas of cismontane southern California. The range is noteworthy for the diversity of Quercus and oak-dominated vegetation. A total of 32 sensitive plant taxa (rare, threatened or endangered) was recorded from the range.

Articulated Cork In Calotropis Procera (Asclepiadaceae), Simcha Lev-Yadun

Aliso: A Journal of Systematic and Floristic Botany

The cork of the small tree. Calotropis procera, which grows in a very hot district of Israel, is remarkable for its thickness and brittleness. The cork of the stems and large branches is composed of longitudinal ridges that extend over several internodes. The cork ridges have deep fissures around the circumference at almost every node. I propose that these nodal fissures in the cork serve as joints for two functions: (1) to prevent breakage of the fragile cork layer when branches bend under wind stress, and (2) to allow thermal expansion while avoiding tissue cracking on extremely hot days, …

Potential Utility Of Chloroplast Trnl (Uaa) Gene Intron Sequences For Inferring Phylogeny In Scrophulariaceae, C. Edward Freeman, Ron Scogin

Aliso: A Journal of Systematic and Floristic Botany

Whereas chloroplast DNA-derived sequence data from protein coding regions have been utilized successfully at many taxonomic levels in recent years, sequences which are variable enough to allow for efficient phylogenetic inference (maximum information with relatively low sequencing costs and effort) at the subfamilial level huve been few. Sequence data were obtained in this study from a noncoding region, the trnL (UAA) gene intron, from a selection of taxa from the Scrophulariaceae and closely related families (representing 41 species in 26 genera). Groups of species from commonly recognized tribes and subtribes were included to determine if these taxa were grouped together …

Volume Equations And Volume Tables For Black Pine In Taşköprü, Hakki Yavuz

Turkish Journal of Agriculture and Forestry

In this study, single, double and multiple-entry tree volume equations were constructed according to six performance criteria (average residuals or bias, average absolute residuals, standard deviation of residuals or presicion, coefficient of determination, percent total error and percent absolute mean error) for black pine (Pinus nigra Arn. Subs. Pallasiana) in Taşköprü Forest District. The results indicate that the best volume equations chosen from each equation systems can be used for black pine in Taşköprü Forest District at the 0.05 significant level.

Salt Tolerance In Eagean Region's Wheats, Cahi̇t Konak, Riza Yilmaz, Olcay Arabaci

Turkish Journal of Agriculture and Forestry

The study was conducted to determine seedling stage tolerances to salinity stress of 7 bread wheat and 2 durum wheat cultivars which were widely grown in Eagean Region. The experiment comprised on two factors, salt (NaCl) concentrations (control, EC values 8, 16 and 24 mmhos/cm) and wheat genotypes. A split plot design was partitioned into 3 blocks representing a replication as salt concentration and each replication was devided into sub plots as cultivars. The characteristics such as rate of seedling emergence, length of shoot and root, dry weight of shoot and root, total dry weight, salt tolerance indexes were screened. …

Effects Of Coating With Melamine Impregnated Papers On Technical Properties Of Particleboard, Gökay Nemli̇, Hülya Kalaycioğlu

Turkish Journal of Agriculture and Forestry

Boards of 18 mm and 12 mm thickness with a specific gravity of 0.70 g/cm^3 were used in this study. Some of these boards were coated with melamine-impregnated papers. The bending strength, modülus of elasticity, bonding strength, screw holding and formaldehyde emission of boards stored for, in turn, one day, one week, one month and three months were recorded during the experiments. It was concluded that coating with melamine impregnated papers improved the mechanical properties of particleboards and that formaldehyde emission was remarkably reduced. Board thickness was found to have an effect on all mechanical properties of particleboard except for …

Variations Of Fatty Acid Composition According To Some Morphological And Physiological Properties And Ecological Regions In Oilseed Plants, Hasan Baydar, İsmai̇l Turgut

Turkish Journal of Agriculture and Forestry

Fatty acid composition of 14 different vegetable oils obtained from sunflower (Helianthus annuus L.), safflower (Carthamus tinctorius L.), soybean (Glycine max (L.) Merr.), corn (Zea mays L.), peanut (Arachis hypogaea L.), sesame (Sesamum indicum L.), cotton (Gossypium hirsitum L.), rape (Brassica napus L.), poppy (Papaver somniferum L.), tabacco (Nicotiana tabacum L.), cephalaria (Cephelaria syriaca L.), flax (Linum usitatissimum L.) and camalia (Camalina sativa L.) seeds and olive (Olea europea L.) were compared in this study. The position effects in safflower, different seed colours in sesame and poppy, seed development stages in rape and different ecological local varieties in sesame were …

Investigations On The Fertilization Biology Of Some Sweet Cherry Varieties Grown In Pozantı Ecological Conditions, Mehmet Sütyemez, Si̇nan Eti̇

Turkish Journal of Agriculture and Forestry

In this study, fertizilation biology of 7 cherry varieties (Sarı, Ömerli, Aksehir Napolyonu, 0900 Ziraat, Merton Marvel, Merton Bigarreau and Noble) was investigated between 1992 and 1993 in Pozanti Research Center. For this purpose, fruit set level in free pollination, self and cross pollination; fruit weight, seed weight, fruit flesh/seed weight ratio, TSS, were examinated. For Sari and Noble all varieties were found to be good pollinizers. Fruit set level changed between 1 % and 45 %. Different pollinizers did not have significant effect on the fruit quality criteria.

Two New Sex Determining Factors ( M V , F D ) In Housefly, (Musca Domestica) Populations In Turkey, Şükran Çakir

Turkish Journal of Zoology

In most strains of the common housefly, Musca domestica, sex is genetically determined by the presence or absence of a Y chromosome with a dominant male determining factor, M. Standard trains have an XX-XY mechanism. In certain laboratory and natural populations, however, neither females nor males have the Y chromosome. These non-standard populations have autosomal mechanisms for sex determination. In the present study, the existence of two new autosomal sex determining factors, M V and F D , in housefly populations in Turkey was determined.

Pcr And Fish Detection Extends The Range Of Pfiesteria Piscicida In Estuarine Waters, P. A. Rublee, J. Kempton, E. Schaefer, J.M. Burkholder, H. B. Glasgow Jr., David Oldach

Virginia Journal of Science

PCR and fluorescent in situ hybridization probes were used to assay for the presence of the dinoflagellate Pfiesteria piscicida in 170 estuarine water samples collected from New York to northern Florida. 20% of samples tested positive for the presence of P. piscicida, including sites where fish kills due to Pfiesteria have occurred and sites where there was no historical evidence of such events. The results extend the known range of P. piscicida northward to Long Island, New York. The results also suggest that P. piscicida is common, and normally benign, inhabitatant of estuarine waters of the eastern US.

A Cohort Study To Determine The Epidemiology Of Estuary-Associated Syndrome, Elizabeth Turf, Lily Ingsrisawang, Megan Turf, J.D. Ball, Michael Stutts, John Taylor, Suzanne Jenkins

Virginia Journal of Science

From the Introduction:

Estuary-Associated Syndrome (EAS) is the name given to a potential illness characterized primarily by changes in an individual's cognitive abilities, including acute onset of memory loss or the sudden inability to solve simple problems. Other possible signs of illness include respiratory symptoms, skin rash, or gastrointestinal distress. This illness appears to arise following exposure to toxin produced by Pfiesteria piscicida, or other toxic dinoflagellates, that resides in estuary waters.

….

In order to learn more about this possible syndrome and to determine if a causal relationship exists between association to waters containing Pfiesteria or other toxic …

Monitoring Results For Pfiesteria Piscidida And Pfiesteria-Like Organisms From Virginia Waters In 1998, Harold G. Marshall, David W. Seaborn, Jennifer Wolny

Virginia Journal of Science

Results of an extensive 1998 monitoring program for the presence of Pfiesteria-like organisms (PLO) in Virginia estuaries indicate these dinoflagellates are widely distributed in both the water column, and as cysts in the sediment, however Pfiesteria piscicida was not detected at this time. The highest concentrations of PLO were in estuaries along the Virginia shore line of the Potomac River, and in western Chesapeake Bay estuaries from the Little Wicomico River to the Rappahannock River. The most common PLO included Cryptoperidiniopsis sp. and Gymnodinium galatheanum. The lowest PLO concentrations were at ocean side locations. PLO were also …

Survey Of Medium And Large Mammals In An Urban Park (Murray Park), Little Rock, Pulaski County, Arkansas, Josie H. Dickins, David W. Clark, Steffany C. White, Gary A. Heidt

Journal of the Arkansas Academy of Science

Because of increased environmental awareness by city planning commissions, there are more urban parks and greenbelt areas. These areas often result in increased human and wildlife contacts, thus resulting in the need for management plans regarding urban wildlife. From September 1998 to March 1999, we conducted mammal surveys of the urban greenspace Murray Park, Little Rock, Pulaski County, Arkansas. Surveys were conducted using five methods: direct observations; spot lighting; live trapping; animal sign; and scent posts. Species recorded included, opossum (Didelphis virginiana), nine-banded armadillo (Dasypus novemcinctus), fox squirrel (Sciurus niger), gray squirrel (Sciurus carolinensis), beaver (Castor canadensis), woodchuck (Marmota monax), …

Effects Of Varied Intensity Resistance Training In Combination With Extra Mass-Bearing Exercise On Bone Adaptations In Ovariectomized And Sham Operated Sprague Dawley Rats, Donna Quimby, Kathy Hall

Journal of the Arkansas Academy of Science

This experiment was designed to study the effects of intensity of exercise on bone adaptations in ovariectomized and sham operated 12 week old rats. Eighty Sprague Dawley rats were divided by mass into two equal groups (mean = 197 g). One group was ovariectomized (OVX); the other sham (S) operated. Each surgery group was then subdivided by mass into four exercise intensity groups. The exercise intensity groups were created by loading additional mass (percent of animals body mass, 0%, 3%, 6% and 9%) on each animal in combination with treadmill running (10 m/min.; 30 min./day; 4 days/wk.; for 7 weeks). …

Improving Feed Grains, Bruce P. Mullan

Journal of the Department of Agriculture, Western Australia, Series 4

Clearly, to encourage grain growers to focus their production systems towards feed grains, it is important to first identify the reasons for variation in the nutritional value of grains and then to develop rapid, cheap, and accurate methods of measuring these factors. The analytical methods should ideally be suitable for application either at the site of grain delivery from the farm or within the place of stockfeed manufacture. This will mean the nutritional value of the grain can be known before it is used. The rational marketing of feed grains could then be achieved, with the benefits from more efficient …