Life Sciences Commons^™

The First Occurrence Of The Uncommon Family Barbutiidae (Acari: Actinedida) In Turkey: Barbutia Anguineus (Berlese), Sali̇h Doğan, Güldem Dönel

Turkish Journal of Zoology

A newly recorded mite species, Barbutia anguineus (Berlese), collected from Turkey is herein re-described and figured. This is the first record of the family Barbutiidae in Turkey.

Hydrochus Ibericus And Hydrochus Nodulifer, Two New Records For The Hydrochidae (Coleoptera) Fauna Of Turkey, Abdullah Mart, Ümi̇t İncekara, Ahmet Polat, Hani̇fi̇ Karaca

Turkish Journal of Zoology

This study reports the first occurrence of Hydrochus ibericus Valladares, Diaz, and Delgado, 1999, and Hydrochus nodulifer Reitter, 1897 from Turkey.

Diversity Of Alticinae (Coleoptera, Chrysomelidae) In Kasnak Oak Forest Nature Reserve, Isparta, Turkey, Ebru Gül Aslan, Yusuf Ayvaz

Turkish Journal of Zoology

Different habitat types chosen from Kasnak Oak Forest Nature Reserve (Isparta, Turkey) and 3 plots with vegetation structure, were studied comparatively with Alticinae (Coleoptera, Chrysomelidae) species composition, its richness and abundance. The study was conducted between the months of April and October at 15-day intervals during 2005 and 2006. Sixty-six sets of data were obtained during the survey, including 22 samplings for each plot. A total of 2650 individuals belonging to 57 species were recorded from the chosen plots. Species richness estimators were used to measure the completeness of the inventories. Values predicted by different non-parametric estimators showed that further …

Invasion By The Oak Lace Bug, Corythucha Arcuata (Say) (Heteroptera: Tingidae), In Turkey, Serap Mutun, Zeycan Ceyhan, Can Sözen

Turkish Journal of Zoology

Corythucha arcuata (Heteroptera: Tingidae) is an important pest species that causes severe damage to oak species by sucking up the cellular sap material and leaving its eggs on the underside of leaves. Considered a Nearctic species with a wide distribution, especially in the United States and southern Canada, it has recently been reported beyond the North American continent, specifically in Italy, Switzerland, and Turkey. Since its first report from Bolu, in 2003, the oak lace bug has rapidly dispersed throughout Turkey-to Düzce, Zonguldak, Sakarya, Kocaeli, Eskişehir, Ankara, Çankırı, and Bilecik provinces. The present study determined that the oak lace bug …

Seasonal Dynamics And Nocturnal Activities Of Mosquitoes (Diptera: Culicidae) In The Aras Valley, Turkey, Yaşar Kemal Gündüz, Adnan Aldemi̇r, Bülent Alten

Turkish Journal of Zoology

Species composition, nocturnal activity and population dynamics of mosquitoes in the Aras Valley of Turkey are studied. Seven New Jersey light traps were activated two nights per month at different sampling sites showing various habitats such as riverside, orchard, roadside, village, wooded area, agricultural area and pasture in 30 km^^{2} area. The night was divided into 6 equal nocturnal periods (18^{00}-20^{00} h, 20^{00}-22^{00} h, 22^{00}-24^{00} h, 24^{00}-02^{00} h, 02^{00}-04^{00} h, 04^{00}-06^{00} h), and the specimens were collected in consecutive 2 hours. From June to September 2006, 2415 specimens representing 6 species were collected. The most dominant species was Oc. dorsalis …

The Gastropod Fauna And Their Abundance, And Some Physicochemical Parameters Of Lake Gölbaşı (Hatay, Turkey), Hülya Şerefli̇şan, M. Zeki̇ Yildirim, Menderes Şerefli̇şan

Turkish Journal of Zoology

An investigation was carried out on the native gastropod species in Lake Gölbaşı, Hatay. During the research 3 species belonging to the subclass Pulmonata (Gyraulus piscinarum, Radix labiata, Anisus leucostoma) were detected along with 9 species of the subclass Orthogastropoda (=Prosobranchia) including Theodoxus jordani, Semisalsa contempta, Semisalsa longiscata, Bithynia phialensis, Valvata saulcyi, Valvata piscinalis, Melanoides tuberculatus, Melanopsis praemorsa ferussaci, Melanopsis costata costata. These gastropod species were collected from 4 stations chosen in the lake. Furthermore, turbidity, dissolved oxygen, pH, and temperature were measured at the sampling sites.

Turkish Hydrophilidae (Coleoptera) Iii. Genus Hydrochara Berthold 1827 With The Description Of A New Species, Hydrochara Major Sp. N., Ümi̇t İncekara, Abdullah Mart, Ahmet Polat, Hani̇fi̇ Karaca

Turkish Journal of Zoology

A new species of hydrophilid beetle, Hydrochara major sp. n., is described from sea level in northern Anatolia (Asiatic Turkey). The key and list of Hydrochara spp. known from Turkey are presented with additional distributional data.

A Study Of The Cremastinae (Hymenoptera: Ichneumonidae) From Turkey, Janko Kolarov, Murat Yurtcan

Turkish Journal of Zoology

Faunistic data of the 16 Cremastinae species from Turkey were obtained. Four species of them are new records for the Turkish fauna. The males of Temelucha turcata Kolarov and Beyarslan were described for the first time. Zoogeographical characterizations of each individual species were summarized.

Changes In The Lake Ladik Fish Community (1972-2004) And Ichthyofauna Of Its Inlet And Outlet Streams (Samsun, Turkey), Selma Uğurlu, Nazmi̇ Polat, Şevket Kandemi̇r

Turkish Journal of Zoology

This research was conducted to record the fish species inhabiting Lake Ladik and its inlet and outlet streams between July 2003 and August 2004. Electrofishing equipment, fishing cast net, fisherman's dip net, and fishing nets with different scales were used to catch fish samples. As a result of evaluated samples caught from the research area, 12 species belonging to 4 families (Cyprinidae, Balitoridae, Esocidae, and Percidae) were identified.

Faunistic Studies On Some Genera Of The Subfamily Ceutorhynchinae (Coleoptera: Curculionidae) From The Central Anatolian And The Mediterranean Regions Of Turkey, Osman Sert

Turkish Journal of Zoology

Twenty-nine species belonging to 17 genera of the subfamily Ceutorhynchinae are reported from the Central Anatolian and the Mediterranean regions of Turkey. Detailed distributions of these species in these 2 regions are given. Seventeen species are newly recorded from central Anatolia and 10 from the Mediterranean region. Datonychus urticae (Boheman, 1845) is a new record for Turkey.

A New Freshwater Ciliate From Northeastern Azerbaijan: Gymnocyclidium Nabranicum N. Gen., N. Sp And Gymnociclidiidae N. Fam. (Scuticociliatida, Ciliophora), Ilham Alekperov

Turkish Journal of Zoology

From 2003 to 2006, the freshwater ciliates of northeastern Azerbaijan were studied. The present paper describes a new ciliate - Gymnocyclidium nabranicum n. gen., n. sp. (Gymnocyclidiidae n. fam.) that clearly differs from other representatives of Scuticociliatida by reduction of bipolar somatic kineties to 2 or 3 short longitudinal crowns. Gymnocyclidiidae n. fam. includes 3 genera - Gymnocyclidium n. gen. (type genus), Paurotricha Dragesco and Dragesco-Kerneis, 1991 and Paracyclidium Grolière, de Puytorac, Grain, 1980.

A New Agriotes Species (Coleoptera: Elateridae) From Turkey, Mahmut Kabalak, Osman Sert

Turkish Journal of Zoology

A new Elateridae species, Agriotes platiai n. sp., is described from Ankara and Yozgat provinces in Turkey. Photographs of the entire body and aedeagus, drawings of the antenna and aedeagus, and differential diagnosis are given.

Parasitoids Of Several Lepidopterous Pests In Maize Plantations In The Southeast Anatolian Region Of Turkey, Celaletti̇n Gözüaçik, Cafer Mart, Kenan Kara

Turkish Journal of Zoology

The parasitoid complex of several lepidopteran pests were studied in maize plantations in the Southeast Anatolian Region of Turkey during 2003-2004. Apenteles sp., Bracon hebetor (Say.), Chelonus oculator Panzer, Meteorus rubens Nees (Hym.: Braconidae), Conomorium patulum Walk. (Hym.: Pteromalidae), Diadegma crassicornis (Gray.) subsp. africator Aubert (Hym.: Ichneumonidae), Euplectrus sp. (Hym.: Eulophidae), Exorista larvarum (Linnaeus), E. xanthaspis (Wiedemann) Gonia bimaculata Wiedemann, Drino imberbis (Wiedemann), Pseudogonia rufifrons (Wiedemann), and Linnaemya neavei Curran (Dip.: Tachinidae) were reared from field-collected larvae. Mythimna loreyi (Duponchel) (Lep.: Noctuidae) was for the first time found to serve as a host for Diadegma crassicornis (Gray.) subsp. africator (Hym.: …

Pollution Swapping: The Effect Of Phosphorus Sequestration On Denitrification In Wetland Sediments, Nathaniel Femi Adegboyega

Dissertations and Theses @ UNI

Surface water quality is currently one of the most important environmental issues facing the state of Iowa since the ecological and recreational health of water bodies are threatened by non-point pollution. Most of Iowa's lakes are polluted because of their high concentration of nutrients, often phosphorus (P), which leads to excessive algal growth (eutrophication). To prevent eutrophication, it is necessary to prevent P from entering surface waters or to sequester (make unavailable to algae) the P that is already in the water body. One method to achieve this is to introduce substances that can tightly fix P (sorption).

Previous studies …

Self-Renewal Of The Long-Term Reconstituting Subset Of Hematopoietic Stem Cells Is Regulated By Ikaros, Peter Papathanasiou, Joanne L. Attema, Holger Karsunky, Naoki Hosen, Yovina Sontani, Gerard F. Hoyne, Robert Tunningly, Stephen T. Smale, Irving L. Weissman

Health Sciences Papers and Journal Articles

Hematopoietic stem cells (HSCs) are rare, ancestral cells that underlie the development, homeostasis, aging, and regeneration of the blood. Here we show that the chromatin-associated protein Ikaros is a crucial self-renewal regulator of the long-term (LT) reconstituting subset of HSCs. Ikaros, and associated family member proteins, are highly expressed in self-renewing populations of stem cells. Ikaros point mutant mice initially develop LT-HSCs with the surface phenotype cKit+Thy1.1(lo)Lin(-/lo)Sca1+Flk2-CD150+ during fetal ontogeny but are unable to maintain this pool, rapidly losing it within two days of embryonic development. A synchronous loss of megakaryocyte/erythrocyte progenitors results, along with a fatal, fetal anemia. At …

Accumulation Of A 5′ Proximal Subgenomic Rna Of Citrus Tristeza Virus Is Correlated With Encapsidation By The Minor Coat Protein, Siddarame Gowda, Satyanarayana Tatineni, Svetlana Y. Folimonova, Mark E. Hilf, William O. Dawson

Department of Plant Pathology: Faculty Publications

During replication, Citrus tristeza virus (CTV) produces large amounts of two unusual subgenomic (sg) RNAs that are positive-stranded and 5′ coterminal. Although these RNAs are produced in similar amounts and are similar in size, with LMT1 (~750 nt) only slightly larger than LMT2 (~650), we found that the similar sgRNAs are produced differently. We previously showed that the LMT1 RNA is produced by premature termination during genomic RNA synthesis. However, LMT2 production was found to correlate with virion assembly instead of RNA replication. The time course of accumulation of the LMT2 RNA occurred late, coinciding with virion accumulation. The long …

Wildland–Urban Interface Maps Vary With Purpose And Context, Susan I. Stewart, Bo Wilmer, Roger B. Hammer, Gregory H. Aplet, Todd J. Hawbaker, Carol Miller, Volker C. Radeloff

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Maps of the wildland– urban interface (WUI) are both policy tools and powerful visual images. Although the growing number of WUI maps serve similar purposes, this article indicates that WUI maps derived from the same data sets can differ in important ways related to their original intended application. We discuss the use of ancillary data in modifying census data to improve WUI maps and offer a cautionary note about this practice. A comparison of two WUI mapping approaches suggests that no single map is “best” because users’ needs vary. The analysts who create maps are responsible for ensuring that users …

Gordonius Rhinocerillus, A New Genus And Species Of Colombian Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Marco Dellacasa, Giovanni Dellacasa

Insecta Mundi

Gordonius rhinocerillus, a new genus and new species of Colombian Aphodiini is described and figured. It is the only known member of New World Aphodiinae where the male has a prominent horn on the head.

Factors Associated With Duck Use Of Impounded And Natural Wetlands In Western South Dakota, Jane E. Austin, Deborah A. Buhl

The Prairie Naturalist

Many wetlands in the northern Great Plains west of the Missouri River are stock ponds, created by impoundment of natural drainages or excavation of existing wetlands to provide water for livestock or improve habitat for waterfowl. We evaluated factors influencing use of wetlands by breeding duck pairs and broods relative to modification, water regime, size, and hydrological location on United States Forest Service lands within the Grand River National Grassland in northern South Dakota (2003 and 2004). Responses for both indicated pairs and broods were related positively to wet area, total wetland area within 4 km, emergent edge cover, and …

Wolf, Canis Lupus, Visits To White-Tailed Deer, Odocoileus Virginianus, Summer Ranges: Optimal Foraging?, Dominic J. Demma, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We tested whether Wolf (Canis lupus) visits to individual female White-tailed Deer (Odocoileus virginianus) summer ranges during 2003 and 2004 in northeastern Minnesota were in accord with optimal-foraging theory. Using GPS collars with 10- to 30-minute location attempts on four Wolves and five female deer, plus eleven VHF-collared female deer in the Wolves’ territory, provided new insights into the frequency of Wolf visits to summer ranges of female deer. Wolves made a mean 0.055 visits/day to summer ranges of deer three years and older, significantly more than their 0.032 mean visits/day to ranges of two-year-old deer, …

Population And Harvest Trends Of Big Game And Small Game Species, Curtis H. Flather, Michael S. Knowles, Stephen J. Brady

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

This technical document supports the Forest Service’s requirement to assess the status of renewable natural resources as mandated by the Forest and Rangeland Renewable Resources Planning Act of 1974 (RPA). It updates past reports on national and regional trends in population and harvest estimates for species classified as big game and small game. The trends reported here were derived from State Wildlife Agency biologists and supplemented with data from the North American Breeding Bird Survey for those bird species that are commonly sought by upland game hunters. Big game populations and harvests have generally increased over the 1975-2000 period. Small …

Expression Of Hpv16 E5 Produces Enlarged Nuclei And Polyploidy Through Endoreplication, Lulin Hu, Tamara A. Potapova, Shibo Li, Susannah Rankin, Gary J. Gorbsky, Peter C. Angeletti, Brian P. Ceresa

Nebraska Center for Virology: Faculty Publications

Anogenital cancers and head and neck cancers are causally-associated with infection by high-risk

human papillomavirus (HPV). The mechanism by which high-risk HPVs contribute to

oncogenesis is poorly understood. HPV16 encodes three genes (HPV16 E5, E6, and E7) that can

transform cells when expressed independently. HPV16 E6 and E7 have well-described roles

causing genomic instability and unregulated cell cycle progression. The role of HPV16 E5 in cell

transformation remains to be elucidated. Expression of HPV16 E5 results in enlarged, polyploid

nuclei that are dependent on the level and duration of HPV16 E5 expression. Live-cell imaging

data indicate these changes do not …

Human Papillomavirus 16 E5 Induces Bi-Nucleated Cell Formation By Cell-Cell Fusion, Lulin Ha, Kendra Plafker, Valeriya Vorozhoko, Rosemary E. Zuna, Marie H. Hanigan, Gary J. Gorbsky, Scott M. Plafker, Peter C. Angeletti, Brian P. Ceresa

Nebraska Center for Virology: Faculty Publications

Human Papillomaviruses (HPV) 16 is a DNA virus encoding three oncogenes – E5, E6, and E7. The E6 and E7 proteins have well-established roles as inhibitors of tumor suppression, but the contribution of E5 to malignant transformation is controversial. Using spontaneously immortalized human keratinocytes (HaCaT cells), we demonstrate that expression of HPV16 E5 is necessary and sufficient for the formation of bi-nucleated cells, a common characteristic of precancerous cervical lesions. Expression of E5 from non-carcinogenic HPV6b does not produce bi-nucleate cells. Video microscopy and biochemical analyses reveal that bi-nucleates arise through cell-cell fusion. Although most E5-induced bi-nucleates fail to propagate, …

Diet Ph, And Viscosity Affect Development And Survival Of Screwworm Larvae (Diptera: Calliphoridae), M. F. Chaudhury, Steven R. Skoda

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The effects of dietary pH and viscosity on larval development of the New World screwworm, Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae), were studied in the laboratory using a gel-based and a cellulose fiber-based media. The mean initial pH of the standard gelled diet was lower (6.5 ± 0.3) than that of the standard cellulose fiber-based diet (6.8 ± 0.6). As larval development progressed, these values decreased to below 6.0 possibly due to the accumulation of acidic metabolic waste. Diets formulated with higher initial pH (7.5) produced a slightly larger and greater number of pupae compared with those for untreated standard diets. …

Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas Karlen

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The short- and long-term effects on soil nutrient cycling, physical properties, and biological activity of striving for higher grain yields and removing crop residues for bio-fuels production must be understood to provide more quantitative crop and soil management guidelines. This study focuses on potassium (K) and sulfur (S) requirements of corn (Zea mays L.) grown for bioenergy feedstock production. Our objectives for 2008 were to: i) evaluate the performance of several S fertilizers, including liquid ammonium thiosulfate (12-0-0-26S), as S sources for corn grown in Iowa, and ii) establish a comprehensive tillage, nutrient management, crop residue removal, and cover …

Regulation Of Innate Immune Responses By Bovine Herpesvirus 1 And Infected Cell Protein 0 (Bicp0), Clinton Jones

School of Veterinary and Biomedical Sciences: Faculty Publications

Bovine herpesvirus 1 (BoHV-1) infected cell protein 0 (bICP0) is an important transcriptional regulatory protein that stimulates productive infection. In transient transfection assays, bICP0 also inhibits interferon dependent transcription. bICP0 can induce degradation of interferon stimulatory factor 3 (IRF3), a cellular transcription factor that is crucial for activating beta interferon (IFN-β) promoter activity. Recent studies also concluded that interactions between bICP0 and IRF7 inhibit trans-activation of IFN-β promoter activity. The C3HC4 zinc RING (really important new gene) finger located near the amino terminus of bICP0 is important for all known functions of bICP0. A recombinant virus that contains a single …

A Comparative Study Of Hiv-1 Clade C Env Evolution In A Zambian Infant With An Infected Rhesus Macaque During Disease Progression, For Yue Tso, Federico G. Hoffmann, Damien C. Tully, Philippe Lemey, Robert A. Rasmussen, Hong Zhang, Ruth M. Ruprecht, Charles Wood

Nebraska Center for Virology: Faculty Publications

Objective—To evaluate whether HIV-1 clade C (HIV-C) envelope variations that arise during disease progression in rhesus macaque model reflect changes that occur naturally in human infection.

Design—An infant macaque was infected with SHIV-1157i, an R5 tropic clade C SHIV (SHIV-C) which expresses a primary HIV-C envelope derived from an infected human infant, and monitored over a five-year period. Genetic variation of the V1-V5 envelope region, which is the main target for humoral immune responses, derived from the infected macaque and infant was examined.

Methods—V1-V5 envelope region were cloned and sequenced from longitudinal PBMC samples collected from the infected macaque and …

Use Of Average Mutual Information For Studying Changes In Hiv Populations, Khalid Sayood, Federico Hoffman, Charles Wood

Nebraska Center for Virology: Faculty Publications

Average mutual information (AMI) has been used in a number of applications in bioinformatics. In this paper we present its use to study genetic changes in populations; in particular populations of HIV viruses. Disease progression of HIV-1 infection in infants can be rapid resulting in death within the the first year, or slow, allowing the infant to survive beyond the first year. We study the development of rapid and slow progressing HIV population using AMI charts based on average mutual information among amino acids in the env gene from a population of 1142 clones derived from seven infants with slow …

Protection Against Mucosal Shiv Challenge By Peptide And Helper-Dependent Adenovirus Vaccines, Eric A. Weaver, Pramod N. Nehete, Bharti P. Nehete, Stephanie J. Buchl, Donna Palmer, David C. Montefiori, Philip Ng, K. Jagannadha Sastry, Michael A. Barry

Nebraska Center for Virology: Faculty Publications

Groups of rhesus macaques that had previously been immunized with HIV-1 envelope (env) peptides and first generation adenovirus serotype 5 (FG-Ad5) vaccines expressing the same peptides were immunized intramuscularly three times with helper- dependent adenovirus (HD-Ad) vaccines expressing only the HIV-1 envelope from JRFL. No gag, pol, or other SHIV genes were used for vaccination. One group of the FG-Ad5- immune animals was immunized three times with HD-Ad5 expressing env. One group was immunized by serotype-switching with HD-Ad6, HD-Ad1, and HD-Ad2 expressing env. Previous work demonstrated that serum antibody levels against env were significantly higher in the serotype-switched group than …

Physiological And Environmental Regulation Of Interannual Variability In Co2 Exchange On Rangelands In The Western United States, H. Wayne Polley, William Emmerich, James A. Bradford, Phillip L. Sims, Douglas H. Johnson, Nicanor Z. Saliendra, Tony Svejcar, Raymond Angell, Albert B. Frank, Rebecca L. Phillips, Keirith A. Snyder, Jack A. Morgan

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

For most ecosystems, net ecosystem exchange of CO₂ (NEE) varies within and among years in response to environmental change.We analyzed measurements of CO₂ exchange from eight native rangeland ecosystems in the western United States (58 site-years of data) in order to determine the contributions of photosynthetic and respiratory (physiological) components of CO₂ exchange to environmentally caused variation in NEE. Rangelands included Great Plains grasslands, desert shrubland, desert grasslands, and sagebrush steppe.