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Articles 1 - 14 of 14

Full-Text Articles in Life Sciences

Physiology And Reproduction: Gross Appearance Of The Turkey Blastoderm At Oviposition, M. R. Bakst, S. K. Gupta, W. Potts, V. Akuffo Jan 1998

Physiology And Reproduction: Gross Appearance Of The Turkey Blastoderm At Oviposition, M. R. Bakst, S. K. Gupta, W. Potts, V. Akuffo

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

The blastoderm (fertilized ovum) and unfertilized germinal disc (UGD) of fresh laid eggs and eggs stored prior to incubation exhibit subtle but definable morphological variations. Such variations may lead to difficulty when attempting to determine true flock fertility based on the appearance of the blastoderm/UGD. The objectives of this study were to define and categorize such morphological variations and to determine whether sperm influence the frequency distribution of the different categories. Eleven categories of blastoderms were defined based on the relative density and appearance of the area alba, area pellucida, area opaca, and the periblast. The majority of the blastoderms …


A Study On Ecology And Biology Of Microtus Guentheridanford And Alston,1880 (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Mustafa Sözen, Nuri Yi̇ği̇t, Şakir Özkurt Jan 1998

A Study On Ecology And Biology Of Microtus Guentheridanford And Alston,1880 (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Mustafa Sözen, Nuri Yi̇ği̇t, Şakir Özkurt

Turkish Journal of Zoology

In this study, ecology and biology of Microtus guentheriwere investigated based on both field and laboratory observations along with its effects on agricultural crops. It was determined that this vole has a shallow burrow with numerous entrances and does not store food in its burrow. In captivity, M. guentherigave litters from September to June and a female produced 42 pups, being seven litters during a reproduction season. The duration of pregnancy varied 20 to 21 days. The average litter size was 5.5 and young were born in an average weight of 3.3 g. The fur developed at an age of …


A New Subspecies Of Meriones Tristrami Thomas, 1892 (Rodentia:Gerbillinae) From Kilis (Southeastern Turkey):Meriones Tristrami Kilisensis Subsp. N., Nuri Yi̇ği̇t, Ercüment Çolak Jan 1998

A New Subspecies Of Meriones Tristrami Thomas, 1892 (Rodentia:Gerbillinae) From Kilis (Southeastern Turkey):Meriones Tristrami Kilisensis Subsp. N., Nuri Yi̇ği̇t, Ercüment Çolak

Turkish Journal of Zoology

In this study, seventeen specimens of Meriones tristrami from Kilis were compared with the specimens of Meriones tristrami bodenheimeri along with topotypes of Meriones tristrami lycaon close to those from Kilis. It was determined that the specimens from Kilis were distinguishable from M.t. lycaon by characters such as dorsal coloration, Tx100 / HB (ratio of tail length to head and body), zygomatic breadth, occipitonasal length, basal length, diastema length, occipital width, weight, baculum shape and fundamental number of chromosomes. Thus, the specimens of M. tristrami from Kilis were determined to be a new subspecies, Meriones tristrami kilisensis subps. n.


A New Species Of The Genus Orculella From East Anatolia (Mollusca: Pulmonata: Pupilloidea), Hartwig Schütt, Rıdvan Sesen Jan 1998

A New Species Of The Genus Orculella From East Anatolia (Mollusca: Pulmonata: Pupilloidea), Hartwig Schütt, Rıdvan Sesen

Turkish Journal of Zoology

A new land snail Orculella garzanensis which is evidently the largest species of this genus was described from East Anatolia Siirt Province.


Prevalence Of Bovine Eimeridosis In Thracia, Turkey, M. Özkan Arslan, Erkut Tüzer Jan 1998

Prevalence Of Bovine Eimeridosis In Thracia, Turkey, M. Özkan Arslan, Erkut Tüzer

Turkish Journal of Veterinary & Animal Sciences

In this study, 768 faecal samples were examined between June 1993-May 1994 to determine the species and the prevalence rates of Eimeriidae in the cattle of Thracia area (The European part of Turkey). The prevalence rate of eimeridosis was found to be 68%. The species determined and their prevalence rates were as follows: Eimeria bovis(34%), E.auburnensis(27%), E.zeuernii(26%), E.ellipsoiDalıs (14%), E.canadensis (12%), E.cylindrica (7.9%), E.supspherica (7.2%), E.alabamensis (4.9%), E.bukidnonensis (2.2%), E.brasiliensis (0.8%) and Isospora sp. (1.2%). Of 768 animals, 29% were found to be infected with single species, 39% with mixed ones and 32% were non-infected. During the study, two calves …


Geographic Variations And Taxonomic Status Of Myotis Myotis (Borkhausen,1797) In Turkey ( Chiroptera: Vespertilionidae), İrfan Albayrak, Nursel Aşan Jan 1998

Geographic Variations And Taxonomic Status Of Myotis Myotis (Borkhausen,1797) In Turkey ( Chiroptera: Vespertilionidae), İrfan Albayrak, Nursel Aşan

Turkish Journal of Zoology

This study is a taxonomical evaluation of 146 specimens of Myotis myotis (Borkhausen, 1797) collected in Turkey between 1974 and 1994. Turkish Myotis myotis were compared with records from the Palaearctic Region. It was determined that both Myotis myotis myotis and Myotis myotis macrocephalicus are distributed in Turkey. The diagnostic characters, habitat, pelage colour, external and cranial measurements and distribution of each taxon were recorded.


A Contribution To The Knowledge Of The Meloidae (Coleoptera)Fauna Of Turkey Along With New Records, Hikmet Özbek, Dezso Szaloki Jan 1998

A Contribution To The Knowledge Of The Meloidae (Coleoptera)Fauna Of Turkey Along With New Records, Hikmet Özbek, Dezso Szaloki

Turkish Journal of Zoology

The faunistic study on Meloidae conducted from 1970s up to 1996 based on the collection of over 4000 specimens and 147 species of 17 genera in two subfamilies are reported. Among them Alosimus reitterianus(Semenov), Coryna confluensReiche, Mylabris cingulata Falderman, M. colligata Redtenbacher, M. furcimacula Sumakov, M. serana (Escherich), M. suturalis Pic, Meloe ganglbauery Apfelbeck, M. glazunovi Pliginskij, M. rufiventris Germar, M. scabriusculus Brand et Erichson, Apalus bipunctatus Germar, A. spectabilis Schaun, Stenoria analis Schaun and Zonitis nigriventris Motschulsky are new records for the Turkish fauna. Besides that Cerocoma scovitzi intermediaMaran, Lydus anatolicusMuche, L. gibbigerEscherich, Micromerus bitlisensis Kaszab, M. dersimensis Kaszab, …


Two New Species And A New Hybrid From Anatolia, Hayri Duman, K. Hüsnü Can Başer, Zeki Aytaç Jan 1998

Two New Species And A New Hybrid From Anatolia, Hayri Duman, K. Hüsnü Can Başer, Zeki Aytaç

Turkish Journal of Botany

Two new species and a new hybrid of Labiatae from south Anatolia are described and illustrated: Sideritis caesarea Duman, Aytaç et Baser, Sideritis vuralii Duman et Baser, Origanum x adanense Baser et Duman.


Lichen Flora Of Sakarya Province (Turkey), Arzu Çi̇çek, Ayşen Özdemi̇r Türk Jan 1998

Lichen Flora Of Sakarya Province (Turkey), Arzu Çi̇çek, Ayşen Özdemi̇r Türk

Turkish Journal of Botany

This study of the lichen flora of Sakarya Province determined 159 species, which are listed along with their substrata.


Lichens Of The Akşehir District (Konya), Feray Karabulut, A. Özdemir Türk Jan 1998

Lichens Of The Akşehir District (Konya), Feray Karabulut, A. Özdemir Türk

Turkish Journal of Botany

Eighty-nine lichen species belonging to 33 genera from Aksehir District of Konya were determined. Staurothele frustulenta Vainio is a new record for the lichen flora of Turkey.


Some Macrofungi Species Of European Part Of Turkey, Georgi Stojchev, Ahmet Asan, Fahrettin Güci̇n Jan 1998

Some Macrofungi Species Of European Part Of Turkey, Georgi Stojchev, Ahmet Asan, Fahrettin Güci̇n

Turkish Journal of Botany

This study aims to determine macrofungi species of Thrace, the European part of Turkey. Samples were collected between the years 1985 and 1997. A total of 67 species were identified and are listed here in.


New Records For The Fungal Flora Of Turkey, Kenan Demi̇rel Jan 1998

New Records For The Fungal Flora Of Turkey, Kenan Demi̇rel

Turkish Journal of Botany

The macrofungi species Ganoderma carnosum Pat. (Ganodermataceae) , Hygrophorus agathosmus Fr.:Fr. (Hygrophoraceae), Marasmius scorodonius (Fr.:Fr.) Fr. (Tricholomataceae) and Lentinellus cochleatus (Pers.:Fr.) Karst. (Auriscalpiaceae) have been recorded for the first time from Turkey.


Lichens Of The Thrace Region Of Turkey, A. Özdemir Türk, Hüseyin Güner Jan 1998

Lichens Of The Thrace Region Of Turkey, A. Özdemir Türk, Hüseyin Güner

Turkish Journal of Botany

This paper gives the distribution of lichens in the Thrace region determined in this study and in nine previous studies as well. The genus Placidiopsis ( Verrucariaceae) is recorded for the first time in Turkey and thirty-three of the species are recorded for the first time for the region. With the completion of this study, the number of known lichen species in the region reaches 201.


Two New Species To Turkey From Turkish Thrace: Mibora Minima (L.) Desv. (Gramineae) & Trifolium Ornithopodioides (L.) Sm. ( Leguminosae), Andrew Byfield, Neriman Özhatay Jan 1998

Two New Species To Turkey From Turkish Thrace: Mibora Minima (L.) Desv. (Gramineae) & Trifolium Ornithopodioides (L.) Sm. ( Leguminosae), Andrew Byfield, Neriman Özhatay

Turkish Journal of Botany

Mibora minima (L.) Desv. ( Gramineae) and Trifolium ornithopodioides (L.) Sm. ( Leguminosae) are added new to the Turkish flora from localities in Turkish Thrace. Their diagnostic characters are briefly described and their ecology and conservation discussed.