Life Sciences Commons^™

Reward Frequency: Effects On Flower Choices Made By Different Honeybee Races In Turkey, İbrahi̇m Çakmak, Harrington Wells

Turkish Journal of Zoology

We compared the European honeybee races Apis mellifera armeniaca, A.m. caucasica, A.m. cypria, and A.m. syriaca. These subspecies are endemic to very different habitats. Additionally, they are exposed to very different levels of predation. A.m. caucasica exists where honeybee predators typically are rare, while the remaining subspecies have ranges that coincide with areas where honeybee predators are abundant. Foraging decisions of workers visiting artificial flower patches containing blue, white, and yellow flowers were recorded. We tested whether foragers responded to differences in rewarding flower frequency among flower color morphs. Division of labor occurred among foragers of each race; some bees …

A Study On The Feeding Biology Of Laudakia (=Agama) Stellio (L. 1758) (Lacertilia: Agamidae) Populations In The Antalya Region, Serdar Düşen, Mehmet Öz

Turkish Journal of Zoology

The feeding biology of Laudakia (=Agama) stellio (L. 1758) was studied using 91 specimens collected from the Antalya region over two consecutive years (1995 and 1996). A total of 1224 prey items were identifed and their frequency of occurrence and percent of diet were tabulated. The majority of the diet consisted of the class Insecta (99.18%), and within this class, Hymenoptera (72.21%) was the major order represented, primarily by the families Formicidae (49.83%) and Apidae (16.74%). In addition to insects, L. stellio feeds on plant material, insect larvae and eggs, and even snails, showing opportunist feeding behavior.

The Effects Of Cold Storage On The Adult Longevity, Fecundity And Sex Ratio Of Apanteles Galleriae Wilkinson (Hym.: Braconidae), Fevzi̇ Uçkan, Adem Gülel

Turkish Journal of Zoology

The effect of cold storage on the adult longevity, fecundity and sex ratio of Apanteles galleriae Wilkinson, a koinobiont, solitary and early instar larval endoparasitoid of the Small Wax Moth Achoria grisella Fabr. was investigated. The rearing of both parasitoid and host cultures and experiments related to the effect of storing Apanteles galleriae adults at low temperature (+ 6°C) were conducted at 25 ± 1°C, 60 ± 5% RH under a photoperiod of 12:12 (L:D). Cold storage (+ 6°C) considerably influenced the adult longevity, fecundity and sex ratio of the parasitoid. Experimental evidence showed that 85.27% of adults died after …

Ultrastructural Observations On The Development Of Some Actinosporean Types Within Their Oligochaete Hosts, Ahmet Özer, Rodney Wootten

Turkish Journal of Zoology

Synactinomyxon type 1, aurantiactinomyxon type 3, echinactinomyxon type 5 and raabeia type 4 were studied at the TEM level in order to determine the developmental stages within their oligochaete hosts. All the actinosporean types studied had uninucleate cells as the earliest stage of development. The formation of a subsequent binucleate cell stage was either due to the division of the nucleus in a uninucleate cell or the plasmogamy of two uninucleate cells. The earliest pansporocyst formation seen was two outer somatic cells surrounding two inner generative \alpha and \beta cells in all the actinosporean types studied. However, the formation of …

Histological Study Of The Organogenesis Of The Digestive System And Swim Bladder Of The Chalcalburnus Tarichi Pallas, 1811 (Cyprinidae), Güler Ünal, Osman Çeti̇nkaya, Ertuğrul Kankaya, Mahmut Elp

Turkish Journal of Zoology

The histological development of the digestive system and swim bladder of Chalcalburnus tarichi larvae and their histology in adults were studied under light microscopy. After hatching, the digestive tract is a simple undifferentiated tube. Exogenous feeding started on the 6th day. The yolk sac was absorbed completely on the 9th day. The goblet cells appeared first in the bucco-pharyngeal cavity and oesophagus on the 4th day, in the anterior on the 9th day and in the posterior intestine on the 5th day. The digestive tract was differentiated as the buccal cavity, pharynx, oesophagus post-eosophageal swelling and intestine on the 5th …

A Study On Endocrine Cells In The Midgut Of Agrotis Segetum (Denn.And Schiff.) (Lepidoptera:Noctuidae), Nursel Gül, Hakki Sayar, Nesri̇n Özsoy, Cevat Ayvali

Turkish Journal of Zoology

The structure of midgut endocrine cells of Agrotis segetum larvae was examined by light and electron microscopy. It was observed that the endocrine cells were located on the basal lamina and among the columnar epithelial cells of the midgut. The cells were morphologically determined as columnar or coniform. The cytoplasm of endocrine cells was observed to contain rough endoplasmic reticulum, mitochondria, developed Golgi complex, vesicles and numerous small secretory granules. It was also observed that the secretory granules were often located in the basal region of the endocrine cells.

The Structure Of Baculum In Myotis Myotis And Myotis Blythi (Chiroptera: Vespertilionidae) From Turkey, İrfan Albayrak, Nursel Aşan

Turkish Journal of Zoology

A comparison was made of the shape and size of the bacula of 32 Myotis myotis (Borkhausen, 1797) and 26 Myotis blythi (Tomes, 1857) collected from Turkey. It was determined that baculum size does not distinguish the two species but baculum shape distinguishes them.

A Taxonomical Study On The Rotifera Fauna Of Devegeçidi Dam Lake (Diyarbakır-Turkey), Aysel Bekleyen

Turkish Journal of Zoology

In this study, Rotifera fauna of Devegeçidi dam lake was taxonomically investigated between April 1995 and December 1996. Thirty-four species belonging to the phylum Rotifera were identified, all of which were new for this lake. Three species (Brachionus caudatus, Lecane (M.) scutata and Testudinella truncata) were new records for Turkish inland waters.

New Rumen Ciliates From Turkish Domestic Cattle (Bos Taurus L.): 3. Entodinium Oektemae N. Sp. And Entodinium Imaii N. Sp. (Entodiniidae, Entodiniomorphida), Bayram Göçmen, Murat Tosunoğlu, Beri̇a Falakali Mutaf

Turkish Journal of Zoology

Certain entodiniid ciliates, somewhat different from those previously described (1), were observed the during examination of the rumen contents of 30 adult domestic cattle (Bos taurus L.) in the vicinity of Izmir. We propose that these new forms should be taxonomically named Entodinium oektemae n. sp. and Entodinium imaii n. sp. The frequencies Entodinium oektemae n. sp. and Entodinium imaii n. sp. were 6.67% 16.67% respectively. The main characteristics of these two species are described in detail and discussed in comparison with those of the previously reported ones.

A Study On Microgastrinae (Hymenoptera: Braconidae) Species In Gökçeada And Bozcaada, Fi̇li̇z İnanç, Ahmet Beyarslan

Turkish Journal of Zoology

Samples were collected from the islands of Gökçeada and Bozcaada between 1996 and 1997. A total of 28 species belonging to 7 genera of Microgastrinae were determined. The species which are new records for the Turkish fauna are Apanteles brunnistigma Abdinbekova, Dolichogenidea cheles (Nixon), D. lacteicolor (Viereck), D. petrovae (Walley), D. subemarginata (Abdinbekova), Choeras parasitellae (Bouché), Glyptapanteles acasta (Nixon), Cotesia setebis (Nixon), and Microplitis docilis Nixon.

Use Of A Discriminant Function For The Morphometric And Meristic Separation Of Whiting Stocks, Merlangius Merlangus Euxinus, Along The Turkish Black Sea Coast, Ali̇ İşmen

Turkish Journal of Zoology

Stock differentiation studies of whiting, Merlangius merlangus euxinus, from the Turkish Black Sea coast were carried out using morphometric and meristic characters and applying the generalised distance of Mahalanobis. Fifteen morphometric measurements, together with eleven meristic characters, were used in the analyses. Insufficient differences (P>0.01) in general phenotypic and genotypic characteristics implied the existence of a single unit stock. Samples taken in different periods showed lower similarity than those taken in the same periods.

A Study On The Bony Fishes Caught In The South Of The Sea Of Marmara By Bottom Trawling And Their Morphologies, Lütfi̇ye Soyal Eryilmaz

Turkish Journal of Zoology

A total of 572 specimens of bony fish were obtained as a result of bottom trawling at 47 stations by R/V Arar of the University of Istanbul at the south of the Sea of Marmara, in 1992 and 1995. Upon analysis of these specimens, it was revealed that 49 bony fish species, including 5 subspecies, belonging to 30 families were found, and their diagnostic characteristics, the place and the depth where they were caught are given. The presence of Alosa pontica (Eichwald, 1838), known from the Black Sea, was determined in the Sea of Marmara in this study. The majority …

Reversibility Of The Temperature-Dependent Opacity Of Nonfat Mozzarella Cheese, R. I. Dave, Donald J. Mcmahon, Jeff Broadbent, C. J. Oberg

Nutrition, Dietetics, and Food Sciences Faculty Publications

Salted and unsalted nonfat mozzarella cheese was made by direct acidification and stored at 4 degrees C over 60 d. Changes in cheese opacity were measured by using reflectance L* values while the cheese was heated from 10 to 90 degrees C, then cooled to 10 degrees C, and reheated to 90 degrees C. A characteristic opacity transition temperature (T(OP)) was obtained for each cheese. Both salt content and storage time influenced T(OP). Opacity during heating, cooling, and reheating formed a hysteresis. At d 1, the unsalted cheese became opaque when heated to 20 degrees C, but the salted cheese …

Olfactory Behavior In Apoe Knockout Mice, John P. Yost

Masters Theses

Apolipoprotein E (apoE), a lipid transporting protein, has been shown to play a vital role in nerve repair and remodeling. Since the olfactory system is in a continuous state of remodeling, the present study tested the hypothesis that apoE is required for normal functioning of the olfactory system. Olfactory function of the wild type (WT) and apoE deficient (apoE KO) mice was assessed by using three standard olfactory tests: 1) the buried food pellet (BFP) test; 2) the odor choice (OC) test; and 3) the odor cued taste avoidance (OCTA) test. The visible food pellet test (VFP) was not used …

Isolation Effects Of Aquatic Habitat Fragmentation On Greenside (Etheostoma Blennioides) And Fantail (Etheostoma Flabellare) Darters, Rita M. Klein

Masters Theses

Aquatic habitat fragmentation is defined as the lack of connectivity between upstream and downstream populations and can occur along two gradients, the longitudinal gradient and the lateral gradient. The longitudinal gradient focuses on objects within the stream and is concerned with the disruption of stream flow, which is normally brought about by the presence of dams and bridges. Fragmentation along the lateral gradient, on the other hand, examines factors outside of the stream and is related to any loss or modification of the surrounding riparian zone.

In Illinois within the last 100 years, stream habitats have become increasingly fragmented by …

The Effects Of Strength Training On The Bone Mineral Density Of Aerobically Trained Perimenopausal Women, Jill Marie Kowalski

Masters Theses

The purpose of this study was to determine if a strength training program has an effect on the bone mineral density of aerobically trained perimenopausal women. The study also hoped to determine if high intensity strength training with low repetitions will result in a greater increase in bone density as compared with low intensity strength training with high repetitions. The duration of the study was six months.

The participants were twenty-five aerobically trained perimenopausal female volunteers. They were randomly selected to be in one of three groups. Group 1 was the aerobic control where the participants continued with their aerobic …

Production Of Colchicine From Root Cultures Of Gloriosa Superba L.(สารโคลชิซีนจากรากเพาะเลี้ยงดองดึง), Waraporn Putalun, Boonyean Kitvijarn

The Thai Journal of Pharmaceutical Sciences

The plant Gloriosa superba L. is a source of colchicine which is used in medicine and agriculture. Study of G. superba using plant tissue and cell culture technique was performed in vitro in order to observe its ability to produce colchicine. The medium ...

"On The Heterotreme-Thoracotreme Distinction In The Eubrachyura De Saint-Laurent, 1980" , Richard V. Sternberg, Neil Cumberlidge

Journal Articles

No abstract provided.

"A New Species Of Freshwater Crab From Rukwanzi, East Africa." , R Gregory Corace, Neil Cumberlidge, Rolf Garms

Journal Articles

No abstract provided.

Effects Of Salinity On Development In The Ghost Shrimp Callichirus Islagrande And Two Populations Of C. Major (Crustacea: Decapoda: Thalassinidea), K.M. Strasser, D.L. Felder

Gulf and Caribbean Research

Salinity (S) was abruptly decreased from 35‰ to 25‰ at either the 4th zoeal (ZIV) or decapodid stage (D) in Callichirus islagrande (Schmitt) and 2 populations of C. major (Say). Other larvae were maintained at stable 35‰ or 25‰ S throughout development. In C. islagrande, duration of ZIV did not vary among the stable salinities. However, a decrease of salinity at ZIV reduced the duration of this stage, suggesting that the S decrease could be a possible cue for acceleration of larval development. In the Gulf population of C. major duration of ZIV was significantly longer at stable 35‰ …

Accurate 3-D Morphological Measurement Using A Structured-Light Range Sensor, Robert L. Cromwell, Stuart G. Poss

Gulf and Caribbean Research

A single-plane structured light range-sensor was tested to establish its usefulness in acquiring 3-D measurements of fish skulls. Twenty-one distances among 22 landmark points for each of 12 neurocrania of the scorpaenid fish Neomerinthe hemingway were taken with digital calipers, with a video-based 2-D imaging system widely used in systematic studies, and with a single-plane structured-light range sensor of inexpensive and simple design. Measures taken by 3-D sensor are highly correlated with those obtained from caliper measurement (r = 0.9995, P << 0.001 ), with a precision ranging from 0.08–0.43 mm. Like caliper-based measurements, they are less strongly correlated with measurements derived from projected video-imaging. Most skulls were scanned in just over 3 minutes each. Range maps, typically establishing the (x,y,z) coordinates of more than 75,000 points per scan, can be obtained in about 40–50 CPU seconds using software running on multiple platforms. Sensor data taken from different views can be merged to build a more complete 3-D reconstruction. System design, calibration, and use are discussed. By eliminating error due to perspective effects inherent in measuring from projected video images, such sensors hold considerable promise in quantifying biological shape in 3-D for comparative and functional studies.

The Chaetognatha Of The Southwestern Gulf Of Mexico During April-May, 1986, Silvia Mille-Pagaza, Jorge Carrillo-Laguna

Gulf and Caribbean Research

An analysis of the distribution and abundance of Chaetognatha species from the Gulf of Mexico during April–May 1986 is presented. Zooplankton samples were collected at 43 stations from the southwestern and eastern regions of Mexico’s Exclusive Economic Zone in the Gulf of Mexico. Species richness and abundance were higher in the southwestern stations located at the platform slope. The rank of Importance Value (IV) shows 3 groups of species; the first group included Flaccisagitta enflata, Mesosagitta minima, Serratosagitta serratodentata, Krohnitta subtilis, Pterosagitta draco, Sagitta bipunctata, and Krohnitta pacifica which were the most widely distributed …

Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Ix. Geographical Occurrence Of Apseudes Olimpiae Gutu, 1986 With A Review Of Previous Records For The Genus Apseudes In The Gulf, Tom Hansknecht, Richard W. Heard

Gulf and Caribbean Research

Examination of tanaidacean specimens collected from shelf waters of the eastern Gulf of Mexico (Gulf) revealed the presence of the apseudomorph Apseudes olimpiaeGutu, 1986, whose type locality was unknown, but suspected to be Bermuda. It is now determined that the type material actually came from the northeastern Gulf. Although the specific station locality information for the type material has been lost; records indicate that specimens from the Gulf were sent to Romania for study by M. Băcescu and apparently became mixed with material from Bermuda. Based on additional material from the present study, new locality records are established for …

Attitudes Towards And Beliefs About Nutrition And Health Among A Random Sample Of Adults In The Republic Of Ireland And Northern Ireland, John Kearney, Michael Gibney, Barbara Livinstone, Paula Robson, Mairead Kiely, Karen Harrington

Articles

Objectives: For effective healthy eating promotion, it is necessary to understand the attitudes towards and beliefs about nutrition of the general public. The objective of this study was to provide data on attitudes towards eating a healthy diet and the perceived need to alter eating habits from a random sample of adults in the Republic of Ireland and in Northern Ireland, using a self-administered questionnaire. Design: Cross-sectional survey using a self-administered attitudinal questionnaire on beliefs and attitudes to healthy eating. Setting: The survey was carried out between October 1997 and October 1999 in the Republic of Ireland and in Northern …

Attitudes Towards And Beliefs About Nutrition And Health Among A Random Sample Of Adults In The Republic Of Ireland And Northern Ireland, John Kearney, Michael Gibney, Barbara Livingstone, Paula Robson, Mairead Kiely, Karen Harrington

Articles

Objectives: For effective healthy eating promotion, it is necessary to understand the attitudes towards and beliefs about nutrition of the general public. The objective of this study was to provide date on attitudes towards eating a healthy diet and the perceived need to alter eating habits from a random sample of adults in the Republic of Ireland and in Northern Ireland, using a self-administered questionnaire. Design: Cross-sectional survey using a self administered attitudinal questionnaire on beliefs and attitudes to healthy eating. Setting: The survey was carried out between October, 1997 and October, 1999 in the Republic of Ireland and in …

Rna Binding Domain Of Telomerase Reverse Transcriptase, Cary Lai, James R. Mitchell, Kathleen Collins

Biology Faculty Publications

Telomerase is a ribonucleoprotein reverse transcriptase that extends the ends of chromosomes. The two telomerase subunits essential for catalysis in vitro are the telomerase reverse transcriptase (TERT) and the telomerase RNA. Using truncations and site-specific mutations, we identified sequence elements of TERT and telomerase RNA required for catalytic activity and protein-RNA interaction for Tetrahymena thermophila telomerase. We found that the TERT amino and carboxyl termini, although evolutionarily poorly conserved, are nonetheless important for catalytic activity. In contrast, high-affinity telomerase RNA binding requires only a small region in the amino terminus of TERT. Surprisingly, the TERT region necessary and sufficient for …

Effects Of Various Calcium Levels And Anionic Salts On Blood Acid-Base Balance, Growth Performance And Development Of Tibial Dyscondroplasia In Broilers, Şeri̇fe Karamüftüoğlu, Neşe Kocabağli

Turkish Journal of Veterinary & Animal Sciences

The aim of this trial was to investigate the effects of chlorine and phosphate salts in the diet, and 2 different levels of diet Ca,on the acid-based balance,growth performance and development of tibial dyscondroplasia (TD)in broiler chicks. Three hundred Ross X PM_3, 1-day-old broiler chicks were used during the 5-week trial.Chicks were divided into 6 groups. Three groups (2 experimental and 1 control)were given diets with Ca levels near the bottom limit of the normal requirement (starter 0.90%and grower 0.80%)and 3 groups (2 experimental and one control)were given diets with higher Ca levels (starter 1.25%and grower 1.15%). No anionic salt …

The Effects Of Different Phytoplankton Species On The Growth And Survival Rate Of Juvenile Mussels (Mytilus Galloprovincialis Lamarck,1819), Aynur Hi̇ndi̇oğlu, Aysun Köse, Serpi̇l Serdar

Turkish Journal of Veterinary & Animal Sciences

Juvenile mussels collected from the wild were fed with five different marine microalgae species (Chlorella sp., Tetraselmis suecica, Dunaliella tertiolecta,Chaetoceros calcitrans and Nannochloropsis oculata)for five months.According to the results, significantly higher growth in length and weight were obtained with diets of Tetraselmis suecica and Chaetoceros calcitrans (P

Effect Of Acute Fluoride Poisoning On Some Echocardiographic Parameters In Rabbits, Nazmi̇ Çeti̇n, Vedat Sağmanligi̇l, Bahri̇ Emre, Ali̇ Bi̇lgi̇li̇, Melahat Toker

Turkish Journal of Veterinary & Animal Sciences

In this study,20 New Zealand rabbits were used to observe the acute toxic effect of fluoride on the heart by using echocardiographic methods.At the beginning,some echocardiographic parameters of the animals were measured without giving fluoride in order to get the control values.After this,the rabbits were equally divided into two groups as 10 and 40 mg/kg b.wt. fluoride (as sodium fluoride)were given to these groups by adding to drinking water for 15 days.The measured echocardiographic parameters from the control and experimental groups were as follows:left ventricular internal diameter in diastole and systole (LVIDD and LVIDS),left ventricular posterior wall thickness in diastole …

Chemical Composition And Meat Yield Of Vimba (Vimba Vimba Tenella(Nordmann,1840))In Karacaören I Dam Lake, Abdullah Di̇ler, Z. Arzu Becer

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the chemical composition and meat yield of Vimba (Vimba vimba tenella)caught from Karacaören I Dam Lake. The average water content, crude protein, crude fat and crude ash were determined to be 77.96 % ±1.66, 15.30 % ±0.79, 2,41 % ±0.57 and 1.28 % ±0.21 respectively. In the investigated samples ratio of the head weight,viscera,fins and total weight with meat yield were determined. Meat yields of male and female fish were 63.76 % -71.02 % and 67.97 % -70.06 % respectively.