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Articles 7051 - 7080 of 10523

Full-Text Articles in Zoology

Kiangs (Equus Kiang, Moorcroft 1841) In Sikkim, India, Natalia V. Paklina, Chris Van Orden Jan 2007

Kiangs (Equus Kiang, Moorcroft 1841) In Sikkim, India, Natalia V. Paklina, Chris Van Orden

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Between the 5th and 10th of March 2001 we completed a 450 km route by car in Northern Sikkim. During the trip along the southern slopes of the Himalayas and Sikkim Plateau we didn’t see a single kiang. According to the local people and military personnel in Sikkim, kiangs are known only in the outer limits of the Sikkim Plateau, where wild animals have a possibility to migrate free over the Chinese-Indian border. In winter only small groups of kiang incidentally come to the Sikkim Plateau from South Tibet. But in May more of them come there and …

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Current Status Of The Khulan (Equus Hemionus) In The Trans-Altai Gobi, Enkhbileg Dulamtseren, Adiya Yadamjav, Dovchindorj Ganbold, Mijidorj Batmunkh Jan 2007

Current Status Of The Khulan (Equus Hemionus) In The Trans-Altai Gobi, Enkhbileg Dulamtseren, Adiya Yadamjav, Dovchindorj Ganbold, Mijidorj Batmunkh

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Since 1975, 25 wildlife surveys have been conducted in the Trans-Altai Gobi. In this paper we summarize results from the last 11 surveys, conducted between October 2000 and April 2005, and discuss our findings together with results from previous surveys.

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Assessment Of Non-Metric Skull Characters And Age Determination In The Asiatic Wild Ass Equus Hemionus: A Methodological Approach, Hermann Ansorge, Annegret Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa, Michael Stubbe Jan 2007

Assessment Of Non-Metric Skull Characters And Age Determination In The Asiatic Wild Ass Equus Hemionus: A Methodological Approach, Hermann Ansorge, Annegret Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The report presents the first information on the use of non-metric skull characters and age determination by tooth section for Asiatic wild asses. It was initiated by a collection of more than 400 skulls of the Asiatic wild ass from the Bordzongijn-Gobi 2002-2004. The methodological overview gives a first research prospect in Asiatic Wild Ass concerning the use of non-metric skull characters as a morphological tool for assessing genetic variability, determining epigenetic divergences and evaluating fluctuating asymmetry. The time course of tooth eruption and replacement in the Asiatic wild ass is described with regard to its use for age determination. …

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Territorial Behaviour Of Kiang (Equus Kiang Moorcroft, 1841) In Ladakh (India), Natalia V. Paklina, Chris Van Orden Jan 2007

Territorial Behaviour Of Kiang (Equus Kiang Moorcroft, 1841) In Ladakh (India), Natalia V. Paklina, Chris Van Orden

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The observations of kiang behavior were made in Navokar Valley northeast of Tso Kar Lake (Ladakh, India) between July 30 and November 22, 2001. In the breeding season (end of July until the end of August) adult kiang males kept not overlapping, protected territories (about 10 km2), and marked by single defecation and urination marks. There were adult females with and without offspring on the territories (up to 12 animals, including the male). The distance between male and females on the territories was usually hundred times bigger, then a distance between stallion and his harem in horses. Females …

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Semi-Wild Population Of Kulans In The Bukhara Breeding Centre And Their Co-Habitation With Przewalski’S Horses, Karim Bahloul, Olga B. Pereladova, Natalia V. Soldatova, Ekaterina V. Sidorenko, Antoine J. Sempere Jan 2007

Semi-Wild Population Of Kulans In The Bukhara Breeding Centre And Their Co-Habitation With Przewalski’S Horses, Karim Bahloul, Olga B. Pereladova, Natalia V. Soldatova, Ekaterina V. Sidorenko, Antoine J. Sempere

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Asiatic wild asses and Przewalski's horses initially inhabited steppe, semi-desert and desert areas, but Przewalski's horses became extinct in the wild, and kulans are under threat of disappearance. The Bukhara Breeding Centre (Uzbekistan) was created in 1976 for conservation and reintroduction of wild ungulate species. In 1977-1978, five kulans (two males and three females) from Barsa-Kelmes Island on the Aral lake were introduced to the reserve. The group increased to 25-30 animals in 1995-1998, when five Przewalski's horses from Moscow and St. Petersburg zoos were introduced to the same territory. We analyzed the home ranges, preferred habitats and social interactions …

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Social Networks In Wild Asses: Comparing Patterns And Processes Among Populations, Daniel I. Rubenstein, Siva Sundaresan, Ilya Fischhoff, David Saltz Jan 2007

Social Networks In Wild Asses: Comparing Patterns And Processes Among Populations, Daniel I. Rubenstein, Siva Sundaresan, Ilya Fischhoff, David Saltz

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Asiatic wild asses inhabit some of the most arid environments in the world. All live in fissionfusion societies, but demography varies and the deserts in which they live often differ in subtle ways. Characterizing details of social structure of wild ass populations has been a challenge and has made it difficult to determine causes and consequences of any differences that might exist. We use network theory to compare the social structures of two populations of Asiatic asses/ onagers inhabiting the Negev desert, Israel and khur of the Little Rann of Kuch, India and show that populations differ in important structural …

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An Overview On The State Of Equus Hemionus In Whole China, Weikang Yang Jan 2007

An Overview On The State Of Equus Hemionus In Whole China, Weikang Yang

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The wild ass in China is divided into two species: Gobi khulan (Equus hemionus) and kiang (Equus kiang). Maps and charts of the distribution and population sizes in China and Mongolia of each species are shown from the 1980s through the early 2000s.

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Comparison Of Aquatic-Insect Habitat And Diversity Above And Below Road Crossings In Low-Order Streams, J. Wesley Neal, Nathan J. Harris, Sathyanand Kumaran, David A. Behler, Thomas J. Lang, Paul R. Port, Marcella Melandri, Benjamin G. Batten Jan 2007

Comparison Of Aquatic-Insect Habitat And Diversity Above And Below Road Crossings In Low-Order Streams, J. Wesley Neal, Nathan J. Harris, Sathyanand Kumaran, David A. Behler, Thomas J. Lang, Paul R. Port, Marcella Melandri, Benjamin G. Batten

Journal of the Arkansas Academy of Science

The effects of road crossings on fish communities have been extensively studied; yet little attention has been given to macroinvertebrate communities. This study evaluated physical stream characteristics, water quality, and aquatic-insect richness from above and below road crossings of low-order streams in the Ouachita National Forest in Arkansas. Fifteen road crossings were sampled during October and November 2005. Erosion was significantly higher below road crossings than above. Sites downstream of road crossings had significantly lower pH and significantly higher turbidity than sites upstream of road crossings. Despite differences in water quality and habitat, there was no apparent difference in aquatic-insect …

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Habitat Factors Affecting Trap Success Of Swamp Rabbits In Southeastern Arkansas During A Flooding Event, Blair Smyth, Karen B. Vale, Robert E. Kissell Jr. Jan 2007

Habitat Factors Affecting Trap Success Of Swamp Rabbits In Southeastern Arkansas During A Flooding Event, Blair Smyth, Karen B. Vale, Robert E. Kissell Jr.

Journal of the Arkansas Academy of Science

Swamp rabbits (Sylvilagus aquaticus) are found in bottomland hardwood ecosystems that have canopy gaps dispersed throughout. During annual flooding of these ecosystems, swamp rabbits often are displaced to adjacent uplands or higher ground within the bottomlands. Trapping of swamp rabbits is reported to be best during times of flooding. We examined habitat characteristics at trap sites to identify the best suits of habitat characters to target when trapping for swamp rabbits during flooding conditions. We conducted trapping for swamp rabbits during a flooding event from 2 January 2007 to 3 February 2007. A total of 511 trap nights yielded 16 …

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Distribution Of The Queen Snake (Regina Septemvittata) In Arkansas, Johnathan W. Stanley, Stanley E. Trauth Jan 2007

Distribution Of The Queen Snake (Regina Septemvittata) In Arkansas, Johnathan W. Stanley, Stanley E. Trauth

Journal of the Arkansas Academy of Science

We documented the distribution of the queen snake, Regina septemvittata, in northern Arkansas during the 2005 and 2006 activity seasons. Arkansas currently contains the only known disjunct population of this species west of the Mississippi River. Field work was conducted throughout the Boston Mountains of the Ozark Plateau to verify the presence of queen snakes from historic localities as well as to identify new localities containing these snakes. Seventeen individuals were found in the Mulberry River of Franklin and Johnson counties and the Illinois Bayou watershed of Pope County. Of these 17 snakes, 5 were kept as voucher specimens in …

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Survey Of Nesting By Cliff Swallows (Petrochelidon Pyrrhonota) And Barn Swallows (Hirundo Rustica) At Highway Bridges In Southern Arkansas, C. Renn Tumlison Jan 2007

Survey Of Nesting By Cliff Swallows (Petrochelidon Pyrrhonota) And Barn Swallows (Hirundo Rustica) At Highway Bridges In Southern Arkansas, C. Renn Tumlison

Journal of the Arkansas Academy of Science

The Cliff Swallow (Petrochelidon pyrrhonota) and Bam Swallow (Hinmdo rustica) both are migratory species that, in Arkansas, were known to nest only in the northern part of the state until the mid to late 1900s. The construction of concrete bridges apparently provided suitable nesting structure for both species. I conducted a survey of bridges along highways in southern Arkansas to look for evidence of nesting by these species. Nests of CliffSwallows were found in AsWey, Bradley, Clark, Cleveland, Hempstead, Hot Spring, Howard, Lafayette, Lincoln, Little River, Miller, Nevada, Ouachita, Pike, Sevier, and Union Counties. Nests of Barn Swallows were more …

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First Arkansas Records For White Perch, Morone Americana (Gmelin),(Teleostei: Moronidae), Thomas M. Buchanan, Robert L. Limbird, Frank J. Leone Jan 2007

First Arkansas Records For White Perch, Morone Americana (Gmelin),(Teleostei: Moronidae), Thomas M. Buchanan, Robert L. Limbird, Frank J. Leone

Journal of the Arkansas Academy of Science

No abstract provided.

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Status, Distribution, And Density Of White-Tailed Jackrabbits And Black-Tailed Jackrabbits In South Dakota, Dustin J. Schaible Jan 2007

Status, Distribution, And Density Of White-Tailed Jackrabbits And Black-Tailed Jackrabbits In South Dakota, Dustin J. Schaible

Electronic Theses and Dissertations

The status of jackrabbit (Lepus spp.) populations throughout the Northern Great Plains has been a cause for concern by wildlife managers in recent years and there has been a paucity of information about the ecology of the white-tailed jackrabbit (Lepus townsendii) and the black-tailed jackrabbit (Lepus californicus) in South Dakota. Since there have been little monitoring efforts for hares, 21 permanent spotlight line transects were established across South Dakota for future surveying efforts. These transects were surveyed to obtain baseline information about jackrabbit density and distribution throughout the state. Jackrabbit density was highest in the northwestern portions of the state …

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Summer Food Habits Of Young Grass Pickerel (Esox Americanus),Warmouth (Lepomis Gulosus), And Logperch (Percina Caprodes) From A Cove In Lake Ouachita, Garland County, Arkansas, C. Renn Tumlison, Christian Carroll, Matt Greenwood Jan 2007

Summer Food Habits Of Young Grass Pickerel (Esox Americanus),Warmouth (Lepomis Gulosus), And Logperch (Percina Caprodes) From A Cove In Lake Ouachita, Garland County, Arkansas, C. Renn Tumlison, Christian Carroll, Matt Greenwood

Journal of the Arkansas Academy of Science

No abstract provided.

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Differential Classical Conditioning Of The Gill-Withdrawal Reflex In Aplysia Recruits Both Nmda Receptor-Dependent Enhancement And Nmda Receptor-Dependent Depression Of The Reflex, Shekib A. Jami, William G. Wright, David L. Glanzman Jan 2007

Differential Classical Conditioning Of The Gill-Withdrawal Reflex In Aplysia Recruits Both Nmda Receptor-Dependent Enhancement And Nmda Receptor-Dependent Depression Of The Reflex, Shekib A. Jami, William G. Wright, David L. Glanzman

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Differential classical conditioning of the gill-withdrawal response (GWR) in Aplysia can be elicited by training in which a conditioned stimulus (CS) delivered to one side of the siphon (the CS+) is paired with a noxious unconditioned stimulus (US; tail shock), while a second conditioned stimulus (the CS-), delivered to a different siphon site, is unpaired with the US. NMDA receptor(NMDAR) activation has been shown previously to be critical for nondifferential classical conditioning in Aplysia. Here, we used a semi-intact preparation to test whether differential classical conditioning of the GWR also depends on activation of NMDARs. Differential training produced conditioned enhancement …

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Stock Assessment And Management Of The Egyptian Sole Solea Aegyptiaca Chabanaud, 1927 (Osteichthyes: Soleidae), In The Southeastern Mediterranean, Egypt, Sahar Fahmy Mehanna Jan 2007

Stock Assessment And Management Of The Egyptian Sole Solea Aegyptiaca Chabanaud, 1927 (Osteichthyes: Soleidae), In The Southeastern Mediterranean, Egypt, Sahar Fahmy Mehanna

Turkish Journal of Zoology

Aspects of the population dynamics of the Egyptian sole, Solea aegyptiaca, which is a commercially important endemic and demersal flatfish species in the Egyptian Mediterranean waters, were described based on materials collected monthly between February 2004 and May 2005 from the fishing harbor at Port Said city. Age and growth studies based on sagittal otoliths revealed that this species is relatively fast growing with a maximum age of 4 years. Marginal increment analysis suggested that bands on sagittae are deposited once a year during the winter. Mean back-calculated total lengths ranged from 17.75 cm at age I to 28.22 cm …

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Habitat And Distribution Of The Ruffed Lemur, "Varecia", North Of The Bay Of Antongil In Northeastern Madagascar, Evon R. Hekkala, Marius Rakotondratsima, Natalie Vasey Jan 2007

Habitat And Distribution Of The Ruffed Lemur, "Varecia", North Of The Bay Of Antongil In Northeastern Madagascar, Evon R. Hekkala, Marius Rakotondratsima, Natalie Vasey

Anthropology Faculty Publications and Presentations

Here we present information on the conservation status of ruffed lemurs (Varecia) north of the Bay of Antongil in northeastern Madagascar. Two contiguous protected areas were recently established that traverse this region via blocks of forest connected by narrow forest corridors: the Masoala National Park, which expands further to the east, and the Makira Protected Area, which expands further to the west and northwest. The two extant ruffed lemurs, Varecia variegata and V. rubra, overlapped in this region historically and, on rare occasions, hybridized. As such, land north of the Bay of Antongil is a critical part …

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A Preliminary Study On Growth Parameters And Mortality Rates Of The Barbel (Barbus Tauricus Escherichi Steindachner, 1897) In Yeşildere Stream, Rize, Turkey, Cemaletti̇n Şahi̇n, Hasan Oğuz İmamoğlu, Davut Turan, Bülent Verep, Vatan Taşkin Jan 2007

A Preliminary Study On Growth Parameters And Mortality Rates Of The Barbel (Barbus Tauricus Escherichi Steindachner, 1897) In Yeşildere Stream, Rize, Turkey, Cemaletti̇n Şahi̇n, Hasan Oğuz İmamoğlu, Davut Turan, Bülent Verep, Vatan Taşkin

Turkish Journal of Zoology

Growth parameters and mortality rates of the Barbus tauricus escherichi population inhabiting in Yeşildere Stream were investigated. In particular, age and size distributions, asymptotic growth, and mortality rates by age group classes were estimated. A total of 304 B. t. escherichi specimens were sampled between June 2001 and July 2002. The population consisted of 5 age classes (i.e. 0 to IV) with minimum and maximum sizes of 5 cm to 23 cm in total length. The mean growth parameters were determined as L_{infinity} = 26.63 cm, K = 0.274, and t_0 = -1.009 with the scale method and as L_{infinity} …

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Maturity And Fecundity Of Spiny Dogfish (Squalus Acanthias L., 1758) In The Eastern Black Sea, Sefa Ayhan Demi̇rhan, Kadi̇r Seyhan Jan 2007

Maturity And Fecundity Of Spiny Dogfish (Squalus Acanthias L., 1758) In The Eastern Black Sea, Sefa Ayhan Demi̇rhan, Kadi̇r Seyhan

Turkish Journal of Zoology

The maturity and fecundity of Squalus acanthias spiny dogfish sampled from the south-eastern Black Sea were studied. Age and length at 50% maturity were 10.49 years and 87.57 cm for males, and 11.99 years and 102.97 cm for females, respectively. Mean biennial fecundity was 19.4 eggs and 12.9 pups. A linear relationship between fecundities and length was found: F_e = 0.09 x TLp + 2.12 (r = 0.5) for pups and F_o = 0.27 x TLp - 21.59 (r = 0.7) for eggs.

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The Ornithofauna Of Lake Karakuyu (Afyonkarahisar, Turkey), Hümeyra Nergi̇z, Mehmet Ali̇ Tabur Jan 2007

The Ornithofauna Of Lake Karakuyu (Afyonkarahisar, Turkey), Hümeyra Nergi̇z, Mehmet Ali̇ Tabur

Turkish Journal of Zoology

This study was carried out to determine the ornithofauna of Lake Karakuyu, which is located in the Inner-West Toros surroundings of the Lakes Region and in Dinar district of Afyonkarahisar province. The study area is an artificial lake and it has Wildlife Protection Area status. During the study period from August 2004 to July 2005, a total of 74 bird species belonging to 31 families were observed in the area. The status of these species is as follows: 24 residents, 7 winter migrants, 22 summer migrants, and 21 transit migrants. To show the national and international importance of Lake Karakuyu, …

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The Efficacy And Longevity Of Vectobac® 12 As And Vectobac® G (Both Based On Bacillus Thuringiensis Subsp. Israelensis) For The Control Of Mosquitoes In Turkey, Adnan Aldemi̇r Jan 2007

The Efficacy And Longevity Of Vectobac® 12 As And Vectobac® G (Both Based On Bacillus Thuringiensis Subsp. Israelensis) For The Control Of Mosquitoes In Turkey, Adnan Aldemi̇r

Turkish Journal of Zoology

Under the field conditions of the Gölbaşı district of Ankara, commercial preparations of VectoBac® 12 AS (aqueous suspension) and VectoBac® G (corn cob formulation), both based on Bacillus thuringiensis subsp. israelensis (H-14), were tested against Anopheles sacharovi, An. maculipennis, Culex pipiens, and Cx. theileri larvae at the edge of a lake, a flood plain, and a swamp. Applying VectoBac® 12 AS at the rate of 1.0-1.25 l/ha and VectoBac® G at 7.5-10.0 kg/ha produced excellent initial control (90%-100%) of all mosquito larvae under Central Anatolian conditions. An increase in larval mortality was detected in all treatments as dose rates increased, …

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The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz Jan 2007

The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz

Turkish Journal of Zoology

In all, 103 specimens of Clark's lizard, Darevskia clarkorum (Darevsky and Vedmederja, 1977), from 6 localities in the eastern Black Sea region of Turkey were examined in terms of pholidosis characteristics, morphometric measurements, and color and pattern features. Kolmogorov-Smirnov testing across all populations verified sexual dimorphism in the Ortacalar and Hemşin populations, regarding transversal series of ventral plates (P < 0.05). According to the Mann-Whitney U test, 16 pholidosis characteristics showed differences among the populations (P < 0.05). For comparison of morphometric measurements, 4 morphometric indices and ratios were developed. According to the results of independent t-testing, no differences were found between males and females among the populations. One-way variance analyses based on 4 morphometric indices and ratios confirmed that head index, snout-vent length/tail length, and tail length/total body length showed differences among the populations (P < 0.05). Regarding pholidosis characteristics (except rates of the presence of a masseteric plate and contact between the rostral and internasal plate), morphometric measurements, and color and pattern features, the specimens collected from 6 different localities were similar to D. clarkorum specimens mentioned in the literature. Furthermore, the known range of the species in Turkey has been extended.

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Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever Jan 2007

Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever

Turkish Journal of Zoology

Age, sex, mortality, and growth characteristics of brown trout (Salmo trutta) from the upper Aksu Stream were investigated. Females and males comprised 52.13% and 47.87% of the population, respectively. Age ranged from 1 to 8. The fork length (L) and total weight (W) were 5.7-22.8 cm and 2.9-142.6 g, respectively. Length-weight relationships were W = 0.015 x L^{2.939}, W = 0.015 x L^{2.928}, and W = 0.015 x L^{2.932} for females, males, and overall, respectively. The estimated von Bertalanffy growth parameters were L_{infinity} = 33.27 cm, K = 0.107 y^{-1}, and t_0 = -1.046 y for females; L_{infinity} = 29.50 …

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Zooplankton Fauna And Seasonal Changes Of Gelingüllü Dam Lake (Yozgat, Turkey), Murat Kaya, Ahmet Altindağ Jan 2007

Zooplankton Fauna And Seasonal Changes Of Gelingüllü Dam Lake (Yozgat, Turkey), Murat Kaya, Ahmet Altindağ

Turkish Journal of Zoology

Seasonal variation and density of the zooplankton fauna were studied in Gelingüllü Dam Lake from July 2004 to June 2005. Samples were collected from 4 different stations on a monthly basis with a plankton net, both horizontally and vertically. The zooplankton sample consisted of 92% Rotifera, 7% Cladocera, and 1% Copepoda, including 54, 9, and 2 taxa, respectively. Rotifera were the dominant group of zooplankton with respect to species numbers, count, and density (I/m^3).

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The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu Jan 2007

The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu

Turkish Journal of Zoology

Earthworm specimens collected from 10 different areas of the Kocaeli city center were examined and identified. At the end of the study, 8 species belonging to 5 genera of Lumbricidae were identified: Lumbricus rubellus, Cernosvitovia schweigeri, Octodrilus transpadanus, Aporrectodea caliginosa trapezoides, Aporrectodea rosea, Aporrectodea jassyensis, Dendrobaena hortensis, and Dendrobaena veneta.

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Gregarina Typographi Fuchs, A Gregarine Pathogen Of The Six-Toothed Pine Bark Beetle, Ips Sexdentatus (Boerner) (Coleoptera: Curculionidae, Scolytinae) In Turkey, Mustafa Yaman Jan 2007

Gregarina Typographi Fuchs, A Gregarine Pathogen Of The Six-Toothed Pine Bark Beetle, Ips Sexdentatus (Boerner) (Coleoptera: Curculionidae, Scolytinae) In Turkey, Mustafa Yaman

Turkish Journal of Zoology

A gregarine pathogen of Ips sexdentatus is reported in Turkey for the first time and described as Gregarina typographi. A mixed nematode parasitization and gregarine infection is reported. Gregarines were observed in the populations of I. sexdentatus in Şalpazarı (Sisdağı), Trabzon. During the study, several life stages of the gregarine pathogen were observed, measured, and photographed. Measurements of gamonts and gametocysts of G. typographi are given and compared with other gregarine isolates from Turkey.

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The First Host Record For Zeuxia Zejana Kolomiets, 1971 (Diptera: Tachinidae) From Turkey, Göksel Tozlu, Kenan Kara Jan 2007

The First Host Record For Zeuxia Zejana Kolomiets, 1971 (Diptera: Tachinidae) From Turkey, Göksel Tozlu, Kenan Kara

Turkish Journal of Zoology

Zeuxia zejana Kolomiets (Diptera: Tachinidae) specimens were reared from the larvae of Agapanthia osmanlis Reiche et Saulcy (Col.: Cerambycidae) in Bayburt province (Kop Mountain Pass). Agapanthia osmanlis is the first known host for Zeuxia zejana in Turkey.

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Efficacy Of Solanum Villosum Mill. (Solanaceae: Solanales ) As A Biocontrol Agent Against Fourth Instar Larvae Of Culex Quinquefasciatus Say, Nandita Chowdhury, Indranil Bhattacharjee, Subrata Laskar, Goutam Chandra Jan 2007

Efficacy Of Solanum Villosum Mill. (Solanaceae: Solanales ) As A Biocontrol Agent Against Fourth Instar Larvae Of Culex Quinquefasciatus Say, Nandita Chowdhury, Indranil Bhattacharjee, Subrata Laskar, Goutam Chandra

Turkish Journal of Zoology

Dried ground leaves of Solanum villosum, Mill. were extracted with 5 different solvents [petroleum ether, benzene, choloform:methanol (1:1 v/v), acetone, and absolute alcohol] to determine the best extractant for subsequent isolation and characterization of larviciding compounds. Each batch of larvae (10 per batch) was treated with 30 ppm, 50 ppm, and 100 ppm of each extract in 3 replicates. All eluted fractions were found to induce significant mortality in test mosquito species. The petroleum ether eluted fraction was the least toxic, whereas the chloroform:methanol (1:1 v/v) eluted fraction was the most toxic to the larvae. A very high mortality rate …

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Seasonal Variation In Length, Weight, And Sex Distribution Of Turbot (Scophthalmus Maeoticus Pallas, 1811) In The Sinop Region (Black Sea) Of Turkey, Necati̇ Samsun, Ferhat Kalayci, Osman Samsun Jan 2007

Seasonal Variation In Length, Weight, And Sex Distribution Of Turbot (Scophthalmus Maeoticus Pallas, 1811) In The Sinop Region (Black Sea) Of Turkey, Necati̇ Samsun, Ferhat Kalayci, Osman Samsun

Turkish Journal of Zoology

The length, weight and sex distribution of turbot caught by bottom turbot gill nets were investigated in relation with seasons in the Sinop region. The size ranges were 23.9-69 cm and 31.8-81 cm for male and female turbot, respectively. Mean total length and weight were 50.37 ± 0.42 cm and 2483.2 ± 74.7 g for females, 45.93 ± 0.26 cm and 1711.2 ± 31.2 g for males, and 47.79 ± 0.24 cm and 2034.6 ± 38.5 g for all individuals. Significant differences were found both in length and weight values of turbot between seasons. The highest mean length and weight …

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Life Cycle Of Gammarus Pulex (L.) In The River Yeşilırmak, Mustafa Duran Jan 2007

Life Cycle Of Gammarus Pulex (L.) In The River Yeşilırmak, Mustafa Duran

Turkish Journal of Zoology

Monthly sampling of Gammarus pulex for 45 months in the River Yeşilırmak showed that the mean seasonal population density increased to a maximum in summer, and then declined to the lowest level in winter. There was a consistent seasonal pattern of body length distributions, characterised by the arrival of a strong cohort of new juveniles in spring and early summer. The ovigerous adults were few in autumn, peaked around January to March, and were virtually absent from July to October. Estimated sex ratios obtained from the field in general seem to show that females predominated, except in summer.

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