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Articles 7981 - 8010 of 10522
Full-Text Articles in Zoology
On The Polymorphic Meadow Spittlebug, Philaenus Spumarius (L.) (Homoptera: Cercopidae), Selçuk Yurtsever
On The Polymorphic Meadow Spittlebug, Philaenus Spumarius (L.) (Homoptera: Cercopidae), Selçuk Yurtsever
Turkish Journal of Zoology
Due to its interesting biological aspects, the meadow spittlebug Philaenus spumarius has received great attention from biologists for decades. It has been one of the extensively studied species in ecology and genetics. This homopteran insect shows very high habitat diversity and therefore has a wide global distribution. Adults exhibit a heritable colour/pattern polymorphism on the dorsal surface throughout its range. A similar colour/pattern variation also occurs in certain ventral parts. Recent laboratory studies have dealt with its polyandrous aspect that is, females may mate several times with different males and the offspring of a single female may be fathered, therefore, …
A Study On The Pelagic And Demersal Fishes Of İskenderun Bay, Nuri̇ Başusta, Ünal Erdem
A Study On The Pelagic And Demersal Fishes Of İskenderun Bay, Nuri̇ Başusta, Ünal Erdem
Turkish Journal of Zoology
This study was conducted in İskenderun Bay, Mediterranean Sea, between December 1994 and November 1996. Systematic of the fish species inhabiting the bay were examined. Out of 145 species of 111 genera of 67 families there were 19 species belonging to the Chondrictyes and 126 species belonging to the Osteictyes. Of all these species, 22 were Lessepsian migrant fish species.
Age Determination Methods Of Solea Lascaris (Risso, 1810) Inhabiting The Black Sea, Derya Bostanci, Nazmi̇ Polat
Age Determination Methods Of Solea Lascaris (Risso, 1810) Inhabiting The Black Sea, Derya Bostanci, Nazmi̇ Polat
Turkish Journal of Zoology
This study was conducted to determine the most reliable bony structures for ageing Solea lascaris inhabiting the Black Sea. The relations between four different bony structures are presented in tables and figures by scale, vertebra, otolith and broken burnt-otolith ages of 215 samples collected between October 1996 and October 1997. It is concluded the broken-burnt otolith is the most reliable structure for ageing this species. The Von Bertalanffy growth equation was estimated from the broken-burnt otolith age as L_t=24.85 x [1-e-^{0.113(t+3.87)}].
Apoptosis: Programmed Cell Death, Mahmut Çalişkan
Apoptosis: Programmed Cell Death, Mahmut Çalişkan
Turkish Journal of Zoology
Programmed cell death has been found in many multicellular organisms and occurs as a part of normal development as well as in pathological processes associated with some diseases. Programmed cell death, or apoptosis, is the process whereby certain cells are induced to activate their own death or cell suicide. Apoptosis has been described in a wide variety of cell and tissue types from nematodes to mammals. Apoptosis, unlike necrosis, is mediated by the active participation of dying cells. In another words, the dying cells synthesize certain proteins and enzymes to carry out the "suicide" process. The genes involved in apoptosis …
Histological And Histochemical Studies On The Extensor Muscle Of The Pectoral Fin Of Rainbow Trout (Oncorhynchus Mykiss), Fati̇me Geyi̇koğlu, Abdullah Özkaral
Histological And Histochemical Studies On The Extensor Muscle Of The Pectoral Fin Of Rainbow Trout (Oncorhynchus Mykiss), Fati̇me Geyi̇koğlu, Abdullah Özkaral
Turkish Journal of Zoology
In this study, taking the extensor muscle out of the pectoral fin of trout, lipid and mitochondria contents of muscle fibres were examined. Succinic dehydrogenase and Sudan black B stain methods were applied on the sections removed by freezing microtomy. Haematoxylen and eosin staining were also applied on the sections obtained from paraffin blocks. It was observed histologically that nuclei of muscle fibre were located just under the sarcolemma. Three types of fibres red, intermediate and white were identified by the applied histochemical methods. It was observed that this muscle was rich in red and intermediate fibres. As a result, …
The Growth Characteristics Of Chondrostoma Regium (Heckel, 1843) In Atatürk Dam Lake (Turkey), S. Ahmet Oymak
The Growth Characteristics Of Chondrostoma Regium (Heckel, 1843) In Atatürk Dam Lake (Turkey), S. Ahmet Oymak
Turkish Journal of Zoology
In this study, growth characteristics including as age composition, condition factor, growth, and age-length, age-weight and length-weight relationships, in Chondrostoma regium (Heckel, 1843) living in Atatürk Dam Lake on the Euphrates River were determined. A total of 725 specimens of age groups I-VIII were investigated. The length of females and males was found statistically different only in age group III, while the weights were statistically different in age groups III and IV (P
Faunistic And Taxonomic Studies On The Family Buprestidae (Coleoptera) In Erzurum, Erzincan, Artvin And Kars Provinces I. Acmaeoderinae, Polycestinae And Buprestinae, Göksel Tozlu, Hi̇kmet Özbek
Faunistic And Taxonomic Studies On The Family Buprestidae (Coleoptera) In Erzurum, Erzincan, Artvin And Kars Provinces I. Acmaeoderinae, Polycestinae And Buprestinae, Göksel Tozlu, Hi̇kmet Özbek
Turkish Journal of Zoology
A faunal and taxonomic study on the family Buprestidae (Coleoptera) was conducted in the provinces of Artvin (Central, Ardanuç, Borçka, Hopa, Şavşat and Yusufeli), Erzincan (Central, Tercan and Üzümlü), Erzurum (Central, Aşkale, Çat, Horasan, Ilıca, İspir, Narman, Oltu, Olur, Pasinler, Pazaryolu, Şenkaya, Tortum and Uzundere) and Kars (Digor and Sarıkamış) in 1993-1997. A total of 46 species and subspecies were recorded belonging to 3 subfamilies, namely Acmaeoderinae (12 species), Polycestinae (1) and Buprestinae (33). Of these taxa, Acmaeodera (s.str.) transcaucasica Semenov, Dicerca (s.str.) chlorostigma Mannerheim, Anthaxia (Haplanthaxia) truncata Abeille de Perrin and Acmaeoderella (Carininota) flavofasciata albifrons (Abeille de Perrin) are …
Faunistic And Taxonomic Studies On The Family Buprestidae (Coleoptera) In Erzurum, Erzincan, Artvin And Kars Provinces Ii. Sphenoptarinae, Chalcophorinae, Chrysobothrinae, Agrilinae, Cylindromorphinae And Trachyinae, Göksel Tozlu, Hi̇kmet Özbek
Faunistic And Taxonomic Studies On The Family Buprestidae (Coleoptera) In Erzurum, Erzincan, Artvin And Kars Provinces Ii. Sphenoptarinae, Chalcophorinae, Chrysobothrinae, Agrilinae, Cylindromorphinae And Trachyinae, Göksel Tozlu, Hi̇kmet Özbek
Turkish Journal of Zoology
A faunal and taxonomic study on the family Buprestidae (Coleoptera) was carried provinces of Artvin (Central, Ardanuç, Borçka, Hopa, Şavşat and Yusufeli), Erzincan (Central, Tercan and Üzümlü), Erzurum (Central, Aşkale, Çat, Horasan, Ilıca, İspir, Narman, Oltu, Olur, Pasinler, Pazaryolu, Şenkaya, Tortum and Uzundere) and Kars (Digor and Sarıkamış) in 1993-1997. A total of 38 species were recorded belonging to 6 subfamilies, namely Sphenopterinae (7 species), Chalcophorinae (8), Chrysobothrinae (3), Agrilinae (17), Cylindromorphinae (2) and Trachyinae (1). Of these taxa, Sphenoptera (s.str.) ixion Kerremans is a new record for the Turkish fauna. Agrilus (s.str.) aurichalceus Redtenbacher, Coraebus elatus (Fabricius), Coraebus rubi …
Effects Of Host Species On Some Biological Characteristics Of Apanteles Galleriae Wilkinson (Hym.; Braconidae), Fevzi̇ Uçkan, Adem Gülel
Effects Of Host Species On Some Biological Characteristics Of Apanteles Galleriae Wilkinson (Hym.; Braconidae), Fevzi̇ Uçkan, Adem Gülel
Turkish Journal of Zoology
Koinobiont and solitary, early instar larval endoparasitoid, Apanteles galleriae Wilkinson were reared on two lepidopterous host species, the greater wax moth, Galleriae mellonella (L.) and the small wax moth, Achoria grisella Fabr. under a photoperiod of 12:12 h (D: L) at 25°C and 60 % relative humidity. The parasitoid with three larval instars completed its immature developmental period within 26-28 days when it was reared on G. mellonella and within 25-27 days on A. grisella. The adult parasitoid has no preoviposition period. In the first 24 hours of the adult female life span, 10 to 20 eggs were laid. The …
Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony
Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Members of a flock of male and female emus were observed in an ethological experiment designed to investigate trends in reproductive behavior exhibited during the North American mating season, which lasts from October to mid-March. Observations were made at dawn, noon, and dusk from December 1999 to mid-March 2000, and the only behaviors that were consistently expressed during these times were pecking, strutting, exclusive, and male and female sexual activities (defined in text). Though statistical significance was found between male strutting behavior and female sexual activity in the December observation period, no overall significance or significance at other observation periods …
Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark
Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Baluts are fertile chicken or duck eggs that have been incubated and removed from the incubator prior to hatching for consumption. Chicken eggs are incubated for 11 to 14 days and duck eggs are incubated for 16 to 20 days. Baluts have an extremely specialized consumer market, with the majority of its consumers of Filipino decent. Current U.S. Department of Agriculture regulations for the storage of baluts prior to sale is 7.2ºC, the same as for infertile commercial table eggs. Consumer preference is to purchase live baluts for consumption. Since exposure to 7.2ºC causes embryo mortality within 8 hours of …
Growth Curves Of Four Species Of Commercially Valuable Freshwater Mussels (Bivalva: Unionidae), Alan D. Christian, Chris L. Davidson, William R. Posey Ii, Peter J. Rust, Jerry L. Farris, John L. Harris, George L. Harp
Growth Curves Of Four Species Of Commercially Valuable Freshwater Mussels (Bivalva: Unionidae), Alan D. Christian, Chris L. Davidson, William R. Posey Ii, Peter J. Rust, Jerry L. Farris, John L. Harris, George L. Harp
Journal of the Arkansas Academy of Science
North American freshwater mussels (Bivalvia: Unionidae) have been exploited commercially for over 100 years and have been regulated using shell size limits and/or harvest seasons. Presently, freshwater mussels are considered a threatened faunal group in North America due to the large numbers of endangered, threatened or special concern species. Therefore, management of this fauna should emphasize their long-term sustainability. The objectives of this study were 1) to construct von Bertalanffy growth curves for selected "commercially-most-valuable" species, Fusconaia ebena, Megalonaias nervosa, Amblema plicata and Quadrula quadrula, from five rivers and two reservoirs, 2) to compare species-specific von Bertalanffy growth curves from …
New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley
New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley
Journal of the Arkansas Academy of Science
No abstract provided.
Curly-Tail Malformity In Hatchlings Of The Alligator Snapping Turtle, Macroclemys Temminckii (Testudines: Chelydridae) In Arkansas, Malcolm L. Mccallum, Stanley E. Trauth
Curly-Tail Malformity In Hatchlings Of The Alligator Snapping Turtle, Macroclemys Temminckii (Testudines: Chelydridae) In Arkansas, Malcolm L. Mccallum, Stanley E. Trauth
Journal of the Arkansas Academy of Science
No abstract provided.
Breeding Mortality In The Wood Frog, Rana Sylvatica (Anura: Ranidae), From Northcentral Arkansas, Stanley E. Trauth, Malcolm L. Mccallum, Michael E. Cartwright
Breeding Mortality In The Wood Frog, Rana Sylvatica (Anura: Ranidae), From Northcentral Arkansas, Stanley E. Trauth, Malcolm L. Mccallum, Michael E. Cartwright
Journal of the Arkansas Academy of Science
No abstract provided.
Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson
Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson
Journal of the Arkansas Academy of Science
We radio-tracked 27 white-tailed deer (Odocoileus virginianus) weekly for one year on Fort Chaffee, Arkansas, to investigate their seasonal home ranges and movements between hunted areas and refuges on this military base. This work resulted in2,123 separate radiolocations, of which 85% (1,799) were suitable for use in home range analyses. We used the McPAAL computer package to estimate home range using the Harmonic Mean and minimum convex polygon (MCP) methods. Harmonic mean estimates were based on 95% contour lines. Home range size differed between the sexes and methods. Male home ranges were larger than those of females (t= 3.32, P<0.01; harmonic mean) (t=2.07, P<0.05; MCP). Average home range sizes for males and females based on the harmonic mean method were estimated to be 483 ha and 181 ha, respectively, whereas home range estimates for males and females using the MCP method were 636 ha and 289 ha, respectively. The average home range size for all deer was 259 ha (harmonic mean) and 379 ha (MCP). We found no evidence that females restricted their home ranges during the fawning period. However, females' home ranges expanded during the breeding season, perhaps to find mates. Few deer moved to refuge areas that were off-limits to hunters during the hunting season.
Winter Breeding As A Common Occurrence In The Ringed Salamander, Ambystoma Annulatum (Caudata: Ambystomatidae), In The Ozark National Forest Of Northcentral Arkansas, Stanley E. Trauth
Winter Breeding As A Common Occurrence In The Ringed Salamander, Ambystoma Annulatum (Caudata: Ambystomatidae), In The Ozark National Forest Of Northcentral Arkansas, Stanley E. Trauth
Journal of the Arkansas Academy of Science
No abstract provided.
Occurrence Of A Second Subspecies Of Box Turtle (Terrapene Carolina), In Arkansas, C. Renn Tumlison, Anthony Rocconi
Occurrence Of A Second Subspecies Of Box Turtle (Terrapene Carolina), In Arkansas, C. Renn Tumlison, Anthony Rocconi
Journal of the Arkansas Academy of Science
No abstract provided.
A Diet Study Of Australia's Most Critically Endangered Mammal, Gilbert's Potoroo, Potorous Gilbertii (Marsupialia : Potoroidae), Vinh Nguyen
Theses : Honours
After 125 years of presumed extinction, Gilbert's Potoroo (Potorous gilbertii) was rediscovered in 1994 in Two Peoples Bay Nature Reserve, Albany. As only one population is known to exist, conservation is of prime importance. Faecal analysis was used to examine the diet of P. gilbertii. The species was found to be predominantly mycophagous (fungus-feeding) with invertebrate and plant matter fanning only a small part of its diet. Fungal material made up more than 90% of faecal matter throughout the year. A total of 44 fungal spore types were discerned. Of these, five were tentatively identified to species level with the …
Macrophyte-Dominated Clearwater State Of Lake Mogan, S. Levent Burnak, Meryem Bekli̇oğlu
Macrophyte-Dominated Clearwater State Of Lake Mogan, S. Levent Burnak, Meryem Bekli̇oğlu
Turkish Journal of Zoology
In this study, the water chemistry and zooplankton community of Lake Mogan studied between March 1997 and April 1998. Small-scale industries, crop-farming, urban settlement of the municipality of Gölbaşı with the untreated raw sewage effluent and recreational activities are examples of the human impact within the catchment and the lake, leading to high loading of DIN and TP into the lake via the inflows. However, the natural wetland with the dense reedbeds (Çölovası or Çökek Bataklığı), located on the southern end of the lake, appear to act as a sink for these nutrients. Therefore, the in-lake concentartions of DIN and …
Salinity And Shade Preferences Result In Ovipositional Differences Between Sympatric Tiger Beetle Species, W. Wyatt Hoback, Douglas A. Golick, Tina Marie Svatos, Stephen M. Spomer, Leon G. Higley
Salinity And Shade Preferences Result In Ovipositional Differences Between Sympatric Tiger Beetle Species, W. Wyatt Hoback, Douglas A. Golick, Tina Marie Svatos, Stephen M. Spomer, Leon G. Higley
Department of Entomology: Faculty Publications
1. Adult tiger beetles of the genus Cicindela often co-occur within a habitat but larvae do not. Larvae are sedentary and form usually permanent burrows at the site of oviposition where they require 1-3 years for development.
2. To test niche partitioning based on ovipositional preference, the behavior of two sympatric salt marsh tiger beetles, Cicindela circumpicta and C. togata (Coleoptera: Cicindelidae), were examined.
3. In laboratory studies, female C. circumpicta and C. togata distinguished between experimental salinities, with the former preferring 4 parts per thousand (ppt) and the latter preferring 12 ppt. In the field, C. circumpicta larvae were …
Elaeophorosis In Red Deer From Spain, Mónica Santín-Durán, J. M. Alunda, J. M. San Miguel, Eric P. Hoberg, C. De La Fuente
Elaeophorosis In Red Deer From Spain, Mónica Santín-Durán, J. M. Alunda, J. M. San Miguel, Eric P. Hoberg, C. De La Fuente
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Elaeophorosis, caused by Elaeophora elaphi, was observed in red deer (Cervus elaphus) from Toledo Province (Spain) for the first time. Adult specimens of Elaeophora elaphi were found in the hepatic vessels of nine of 151 red deer between October 1994 and September 1995; intensity of infection was two to 18 nematodes per host. Adult nematodes were only found during the period from fall through early spring. No differences were present between sex or age groups. Parasites were not found in a limited sample from fallow deer (Dama dama). Blood samples were negative for the presence of …
Population Trends In Furbearers In Nebraska, L. M. Landholt, Hugh H. Genoways
Population Trends In Furbearers In Nebraska, L. M. Landholt, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Population trends are documented from 1941 to 1997 for the 12 species of furbearing mammals harvested in Nebraska. Populations of red fox (Vulpes vulpes, raccoon (Procyon lotor), beaver (Castor canadensis), coyote (Canis lupus), and bobcat (Lynx rufus) have increased during this period. Populations of muskrat (Ondatra zibethicus), mink (Mustela vison), eastern spotted skunk (Spilogale putorius), long-tailed weasel (Mustela frenata), and striped skunk (Mephitis mephitis) have decreased. Populations of mink, eastern spotted skunk, long-tailed weasel, and striped skunk may have decreased …
The Distribution And Fishing Of Two Mediterranean Eledone Spp. (Octopoda: Cephalopoda) In The Aegean Sea, Alp Salman, Tuncer Katagan, Ali̇ Cemal Gücü
The Distribution And Fishing Of Two Mediterranean Eledone Spp. (Octopoda: Cephalopoda) In The Aegean Sea, Alp Salman, Tuncer Katagan, Ali̇ Cemal Gücü
Turkish Journal of Zoology
The spatial distributions of Eledone cirrhosa (Lamarck, 1798) and Eledone moschata (Lamarck, 1798) were examined based on four seasonal trawl surverys carried out between 1991-1992 covering 20-500 meters of the Turkish and international waters in the Aegean Sea. It was found that E. cirrhosa inhabits all depth ranges examined in the northern part, but it was seldom observed in the south. E. moschata, on the other hand, has a basin-wide distribution and solely inhabits the upper 200-meter depth range.
Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski
Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Chickens and turkeys are routinely infected with the roundworms Ascaridia galli and A. dissimilis, respectively. The current study was conducted to gather basic information on these worms and to determine whether heterologous infections (chicken worms in turkeys and turkey worms in chickens) would be successful. Chickens and turkeys were obtained at day of hatch, brooded to 7 days of age, and placed in pens (25/pen) according to infection as received at 7 days of age: homologous, heterologous and control (no infection). Bird weights, mortalities, and feed efficiencies were monitored for 3 weeks postinfection, at which time all birds were killed …
Ontogeny, Reproduction, And Population Dynamics Of Stoplephorus Baganensis And Thryssa Kammalensis (Pisces : Engraulididae) In A Malaysian Estuary Sarpedonti, Valerie, Valerie Sarpedonti
Ontogeny, Reproduction, And Population Dynamics Of Stoplephorus Baganensis And Thryssa Kammalensis (Pisces : Engraulididae) In A Malaysian Estuary Sarpedonti, Valerie, Valerie Sarpedonti
Student Works (2000-2009)
Larval ontogeny of Stolephorus baganem:;is and Thryssa kammalensis, comprises three successive phases characterized by: (I) development of swimming appendages, (2) changes in allometric growth of various body parts, and (3) increase in body depth, as well as eye diameter, in the case of S. baganensis. Both anchovy species are multiple spawners, spawning all year round but varying in intensity. Mass spawnings of S bagane11sis start in the first (summer) inter-monsoon period and last for four months. This period is associated with changes in the wind field and increased rainfall, dissolved oxygen and food availability. The presence of mature adults during …
Black-Tailed Deer Habitat Changes In A Portion Of The Mount St. Helens Blast Zone, Ronald W. Davis
Black-Tailed Deer Habitat Changes In A Portion Of The Mount St. Helens Blast Zone, Ronald W. Davis
All-Inclusive List of Electronic Theses and Dissertations
This study utilized Landsat TM imagery to evaluate black-tailed deer habitat changes in a portion of the Mount Saint Helens blast zone in western Washington. The purpose of this study was to compare the post eruption vegetation changes with population trends for black tailed deer. The 55,000-acre study area comprises a Washington Department of Game Management unit (GMU 524) located to the northnorthwest of Mount St. Helens. Approximately 80% ofthe mostly forested study area was affected by lateral blast from the 1980 eruption. The area is predominantly private land managed for timber production but a small portion falls within the …
Nebraska Bird Review (December 1999) 67(4), Whole Issue
Nebraska Bird Review (December 1999) 67(4), Whole Issue
Nebraska Bird Review
Fall Field Report, August to November, 1999 ... 118
Species Accounts ... 120
Kids on Science (Humor) ... 139
1998 (Tenth) Report of the NOU Records Committee ... 141
Index for Volume 67: 1–4 ... 152
1998 (Tenth) Report Of The Nou Records Committee, Mark A. Brogie
1998 (Tenth) Report Of The Nou Records Committee, Mark A. Brogie
Nebraska Bird Review
The functions and methods of the NOU Records Committee are described in its bylaws (NOU Records Committee 1986). The committee's purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. THE OFFICIAL LIST OF THE BIRDS OF NEBRASKA was first published in 1988 (NOU Records Committee 1988) and has been appended eight times (Mollhoff 1989, Grenon 1990, 1991, Gubanyi 1996a, 1996b, 1996c, Brogie 1997, Brogie 1998). An update of THE OFFICIAL LIST OF THE BIRDS OF NEBRASKA was last published in 1997 (NOU Records Committee 1997).
This report …