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1998

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Articles 91 - 120 of 121

Full-Text Articles in Zoology

Levels Of Heavy Metals (Cd, Pb, Cu, Cr And Ni) In Tissue Of Cyprinus Carpio,Barbus Capitoand Chondrostoma Regiumfrom The Seyhan River, Turkey, M. Canli, Ö. Ay, M. Kalay Jan 1998

Levels Of Heavy Metals (Cd, Pb, Cu, Cr And Ni) In Tissue Of Cyprinus Carpio,Barbus Capitoand Chondrostoma Regiumfrom The Seyhan River, Turkey, M. Canli, Ö. Ay, M. Kalay

Turkish Journal of Zoology

Concentrations of cadmium, lead, copper, chromium and nickel were determined in the gill, liver and muscle of Cyprinus carpio, Barbus capito and Chondrostoma regium caught at 5 stations on the Seyhan river system. Heavy metal concentrations in the tissues tended to vary significantly among stations, and one station thought to be contaminated by hospital effluents showed particularly high metal concentration. Liver and gill tissues showed higher metal concentrations than muscle tissue. The ranges of mean metal concentrations (µg/g d.w.) were as follows: the range of cadmium concentration was 1.26-6.10, 0.96-4.72 and 0.51- 1.67, that of lead was 9.41-44.75, 5.22-37.15 and …

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Incidence Of Mealy Bug Dismycoccus Brevipes (Cockrell) On Pineapple, Akhlaq Ahmed Khan, Ghulam Mustafa Avesi, Syed Zafar Masud, Syed Waqar Ali Rizvi Jan 1998

Incidence Of Mealy Bug Dismycoccus Brevipes (Cockrell) On Pineapple, Akhlaq Ahmed Khan, Ghulam Mustafa Avesi, Syed Zafar Masud, Syed Waqar Ali Rizvi

Turkish Journal of Zoology

The pineapple mealy bug ( Dismycoccus brevipes) infestation is reported for the first time from Pakistan, Ratoon, crownlet, slip and sucker plants were found infested by this bug. A total of 3464 bugs were collected from these plants with a mean value of 43.3 bugs/plant. Two-third (2291) of the bug population was found on the roots while one-third (1173) were recovered from the leaf base of the pineapple.

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The Effect Of Salinity On Larval Growth And Survival Of Penaeus Indicus (Decapoda: Penaeidae), Metin Kumlu Jan 1998

The Effect Of Salinity On Larval Growth And Survival Of Penaeus Indicus (Decapoda: Penaeidae), Metin Kumlu

Turkish Journal of Zoology

This study was conducted to determine optimum salinity for the larval growth, survival and development of Penaeus indicus. For this, PZI (protozoea 1) larvae were stocked in 2-L round bottom glass flasks in two replicates at 20, 25, 30 and 35 ppt salinities and were reared on live diets until PL (postlarvae) stages. Highest survival (91%) and greatest growth (6.48 mm) at postlarval stages (PLI/2) were obtained with the larvae cultured at 25 ppt (P

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Productivity Enhancement Of Rice Crop Yield Through Prevention Of Losses Due To Wild Boars In Pakistan, Abdul Rauf Khokhar, Syed Waqar Ali Rizvi Jan 1998

Productivity Enhancement Of Rice Crop Yield Through Prevention Of Losses Due To Wild Boars In Pakistan, Abdul Rauf Khokhar, Syed Waqar Ali Rizvi

Turkish Journal of Zoology

The wild boar control trials were conducted in rice fields in the districts of Sheikhupura, Sialkot, Faisalabad and Gujrat, covering an overall area of 3000 hectares. Zinc phosphide encapsulated bait was used resulting in 80-100% reductions in wild boar activity. In addition, the impact of the boar control work on the crop productivity was evaluated by interviewing 391 farmers selected randomly from the trial areas. The average farm size of the sampled farmers was 426.30 hectares. The average yield loss due to wild boars was estimated at 22.75%. By applying newly developed zinc phosphide capsular technology, 502.17 mt. of rice …

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An Investigation On The Blood-Serum Proteins Of Chalcides Ocellatus(Sauria: Scincidae) Populations From Southern Anatolia, Hüseyin Arikan, Mehmet K. Atatür, Ahmet Mermer Jan 1998

An Investigation On The Blood-Serum Proteins Of Chalcides Ocellatus(Sauria: Scincidae) Populations From Southern Anatolia, Hüseyin Arikan, Mehmet K. Atatür, Ahmet Mermer

Turkish Journal of Zoology

In this study, blood-serum proteins of 22 adult (11 MM , 11 VV ) Chalcides ocellatus (ocelated skink) specimens collected from various localities in Southern Anatolia are investigated qualitatively and quantitatively by means of polyacrylamide disc electrophoresis and densitometry. The species' serum protein electropherograms and protein distribution patterns are established for the first time.

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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.

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A Taxonomical Study On The Rana Ridibunda Pallas, 1771 (Anura: Ranidae)Population From İvriz-Ereğli (Konya), Hüseyin Arikan, Kurtuluş Olgun, İ. Ethem Çevi̇k, C. Varol Tok Jan 1998

A Taxonomical Study On The Rana Ridibunda Pallas, 1771 (Anura: Ranidae)Population From İvriz-Ereğli (Konya), Hüseyin Arikan, Kurtuluş Olgun, İ. Ethem Çevi̇k, C. Varol Tok

Turkish Journal of Zoology

In this study, 15 adult (5 MM , 10 V V ) Rana ridibunda specimens were studied. According to the results of the mor-phological analysis, the Ivriz population was included in R. r. caralitana. Furthermore, the distribution area of R. r. caralitana was extended.

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A Report On Reptiles Collected From Kumluca-Kalkan (Antalya), Turkey, Abidin Budak, Cemal Varol Tok, Ahmet Mermer Jan 1998

A Report On Reptiles Collected From Kumluca-Kalkan (Antalya), Turkey, Abidin Budak, Cemal Varol Tok, Ahmet Mermer

Turkish Journal of Zoology

9 species of lizards and 2 species of snakes, belonging to a total of seven families were collected from Kumluca-Kalkan between 8 and 10 April 1997.

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A New Species Of Exeurytoma Burks, 1971 From Turkey(Hymenoptera, Chalcidoidea, Eurytomidae), Halit Çam Jan 1998

A New Species Of Exeurytoma Burks, 1971 From Turkey(Hymenoptera, Chalcidoidea, Eurytomidae), Halit Çam

Turkish Journal of Zoology

Exeurytoma anatolica sp. n. is described from Tokat, Turkey, and its diagnostic characters are illustrated.

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A New Record Of Acaropsella Volgini(Acari: Prostigmata, Cheyletidae)For The Fauna Of Turkey, Kamil Koç Jan 1998

A New Record Of Acaropsella Volgini(Acari: Prostigmata, Cheyletidae)For The Fauna Of Turkey, Kamil Koç

Turkish Journal of Zoology

In this study, the characteristic features of Acaropsella volgini (Gerson, 1967), a new record for the Turkish fauna, are given for the first time based on the drawings made from our specimens. In addition, their distribution is presented.

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The Herpetofauna Of The Ordu-Giresun Region, Yusuf Kumlutaş, Varol Tok, Oğuz Türkozan Jan 1998

The Herpetofauna Of The Ordu-Giresun Region, Yusuf Kumlutaş, Varol Tok, Oğuz Türkozan

Turkish Journal of Zoology

In this study, 17 reptile and amphibian species were recorded from 19 different localities in the Ordu-Giresun region. Of these, 3 belong to the urodelans species group, 6 belong to anurans, 4 belong to lizards and 4 belong to snakes.

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The Taxonomy And Karyology Of Rattus Norvegicus (Berkenhout, 1769) Andrattus Rattus (Linnaeus, 1758) (Rodentia: Muridae) In Turkey, Nuri Yi̇ği̇t, Ercüment Çolak, Mustafa Sözen, Şakir Özkurt Jan 1998

The Taxonomy And Karyology Of Rattus Norvegicus (Berkenhout, 1769) Andrattus Rattus (Linnaeus, 1758) (Rodentia: Muridae) In Turkey, Nuri Yi̇ği̇t, Ercüment Çolak, Mustafa Sözen, Şakir Özkurt

Turkish Journal of Zoology

In this study, the Turkish population of Rattus norvegicus and Rattus rattus were studied with regard to external, cranial, phalli, bacula and tooth crown morphology and karyotype. External, internal and karyologic characteristics of R. norvegicus were found to be consistent with previously published results. Additionally, it was determined that there are striking color variations in the dorsal and ventral fur of R. rattus and that crown morphology is not a definitive characteristic distinguishing these species because of connected lobes in old specimens. According to the karyological studies, the diploid chromosome numbers and fundamental numbers of R. norvegicus and R. rattus …

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Toxicity Of Neem Leaves Extract (Nlx) Compared Withmalathion (57 E.C.) Against Late 3rd Instar Larvaeof Culex Fatigans(Wild Strain) By Who Method, Mohammad Arshad Azmi, Syed Naeemul Hassan Naqvi, Imtiaz Ahmad, Rahila Tabassum, Bushra Anb Jan 1998

Toxicity Of Neem Leaves Extract (Nlx) Compared Withmalathion (57 E.C.) Against Late 3rd Instar Larvaeof Culex Fatigans(Wild Strain) By Who Method, Mohammad Arshad Azmi, Syed Naeemul Hassan Naqvi, Imtiaz Ahmad, Rahila Tabassum, Bushra Anb

Turkish Journal of Zoology

Among the filariaris causing mosquitoes Culex fatigans is considered an important intermediate host in South-East Asia. Toxicity of ethanolic extract of neem leaves (NLX) is compared with an organophosphate pesticide malathion (57 E.C.). The LC 50 value of malathion (Sisthion) determined presently is 0.45 ppm against late 3rd instar larvae of Culex fatigans (wild strain) and of neem fraction (NLX) is 390 ppm by standard WHO method.

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Survival And Growth Of Corophium Volutator In Organically Enrichedsediment: A Comparison Of Laboratory And Field Experiments, Levent Bat, Dave Raffaelli Jan 1998

Survival And Growth Of Corophium Volutator In Organically Enrichedsediment: A Comparison Of Laboratory And Field Experiments, Levent Bat, Dave Raffaelli

Turkish Journal of Zoology

In this study, the amphipod Corophium volutator (Pallas) was evaluated as test organisms for use in sediment toxicity tests by adapting standard protocols for conducting 10-day and 28-day sediment toxicity tests. Combine laboratory and field bioas-says showed that Corophium can survive in organically enriched sediment if they have no alternative, suggesting that Corophium is relatively tolerant of organically enriched sediment. Neither were there effects on emergence or reburying behaviour. Therefore this bioassay is considered inappropriate for estimating the quality of organically enricment sediment.

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The Behavioural Abilities Of Meteorus Versicolor Wesm. And Rogas Rossicuskok. (Hymenoptera, Branconidae) Parasitoids Of Tephrina Arenacearia Den.Et Schiff. (Lepidoptera, Geometridae), Ilhama Gudrat Gizi Kerimova Jan 1998

The Behavioural Abilities Of Meteorus Versicolor Wesm. And Rogas Rossicuskok. (Hymenoptera, Branconidae) Parasitoids Of Tephrina Arenacearia Den.Et Schiff. (Lepidoptera, Geometridae), Ilhama Gudrat Gizi Kerimova

Turkish Journal of Zoology

This paper concerns with the behavioural abilities of Meteorus versicolor Wesm. and Rogas rossicus Kok. (Hymenoptera, Braconidae)-internal parasitoids of Thephrina arenacearia Den. et Schiff. (Lepidoptera, Geometridae) as well. Periods of development phases and searching, ovipositional and mating behaviour of both parasitoids have been investigated.

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Ornithological Observations On Karadag, Konya Province, Turkey, Guy M. Kirwan Jan 1998

Ornithological Observations On Karadag, Konya Province, Turkey, Guy M. Kirwan

Turkish Journal of Zoology

Few ornithological observations are available from the isolated massifs of the Central Plateau; and for Karadag, Konya province there exists only the records of Ramsay (1914) in the summer of 1907. Observations from a visit in June 1996 are pre-sented and compared with those of Ramsay and data from other sources, principally Roselaar (1995). The total number of bird species recorded on the mountain is 53, of which 18 have been proven to breed; it seems probable that the globally threatened White-tailed Eagle formerly bred in the study area.

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Some Aspects Of Reproductive Biology Of Euryglossa Orientalis(Bl. & Schn.)In North Arabian Sea Along The Coast Of Karachi, Pakistan, Mohammed Atiqullah Khan Jan 1998

Some Aspects Of Reproductive Biology Of Euryglossa Orientalis(Bl. & Schn.)In North Arabian Sea Along The Coast Of Karachi, Pakistan, Mohammed Atiqullah Khan

Turkish Journal of Zoology

In Euryglossa orientalis,sexual maturity was separated into seven stages. Size at sexual maturity was observed at 182 mm TL in males and 178 mm TL in females. A male-female ratio of 1.00:1.60 was determined (0.385:0.615). This species has two spawning seasons in Pakistani waters. The ist spawning season starts in September and the second in February. Fecundity ranged from 9922 to 83891 with a mean value of 36361.

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Some Observations On Gastric Emptying In The Black Sea Whiting,Merlangius Merlangus Euxinus, (N. 1840) Fed On Natural Prey, Kadir Seyhan, N. Selda Başçinar, Ertug Düzgüneş Jan 1998

Some Observations On Gastric Emptying In The Black Sea Whiting,Merlangius Merlangus Euxinus, (N. 1840) Fed On Natural Prey, Kadir Seyhan, N. Selda Başçinar, Ertug Düzgüneş

Turkish Journal of Zoology

In this study a new perspective on the feeding physiology of whiting, Merlangius merlangus euxinus, N. 1840 was investigated. The effects of the skin of the prey, double feeding and prey type on the gastric emptying rate (GER) of whiting fed on natural prey, namely anchovy ( Engraulis encrasicholus) and mussels ( Mytilus galloprovincialis), were investigated. Return of appetite was also studied. It was found that in laboratory conditions, whiting (48.0±8.30 g, n=12) had consumed about 10.2% of its body weight in mussels and return of appetite was found to be approximately 30 h. The effect of the skin of …

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The Short-Term Toxicity Of Two Toxicants To Artemia Nauplii, Melahat Toğulga Jan 1998

The Short-Term Toxicity Of Two Toxicants To Artemia Nauplii, Melahat Toğulga

Turkish Journal of Zoology

In this study, the short-term toxicities of sodium lauryl sulphate (an anionic detergent) and potassium dichromate on instar I and mixed instar II-III nauplii populations of Artemia were investigated. The comparisons between our results and the ARC-test (Artemia Reference Center) protocol show our experiments to be acceptable for acute toxicity standardization.

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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.

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Notes On Distributional Records And Some Characteristics Of Five Carnivorespecies (Mammalia: Carnivora) In Turkey, Şakir Özkurt, Mustafa Sözen, Nuri Yi̇ği̇t, Ercüment Çolak Jan 1998

Notes On Distributional Records And Some Characteristics Of Five Carnivorespecies (Mammalia: Carnivora) In Turkey, Şakir Özkurt, Mustafa Sözen, Nuri Yi̇ği̇t, Ercüment Çolak

Turkish Journal of Zoology

In this study, carnivore specimens such as Herpestes ichneumon, Hyaena hyaena, Meles meles, Vulpes vulpes, Lutra lutra from various localities were evaluated based on external and cranial morphology, and then were compared with the published papers. Thus, the present status in Turkey of these species along with distribution records were evaluated.

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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 …

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Comparative Toxicological Studies Of Rb-A (Neem Extract) And Coopex(Permethrin+Bioallethrin) Against Sitophilus Oryzae With Reference Totheir Effects On Oxygen Consumption And Got, Gpt Activity, Mohammad Arshad Azmi, Syed Naimul Hasan Naqvi, Muhammed Farhanullah Khan, Kahkashan Akhtar, Farah Younus Khan Jan 1998

Comparative Toxicological Studies Of Rb-A (Neem Extract) And Coopex(Permethrin+Bioallethrin) Against Sitophilus Oryzae With Reference Totheir Effects On Oxygen Consumption And Got, Gpt Activity, Mohammad Arshad Azmi, Syed Naimul Hasan Naqvi, Muhammed Farhanullah Khan, Kahkashan Akhtar, Farah Younus Khan

Turkish Journal of Zoology

The toxicity of a neem extract RB-a in comparison with a pyrethroid, Coopex, was studied along with their effects on GPT and GOT activities and oxygen consumption in S. oryzae. The LD 50 value of Coopex was found to be 6.128 \mug/cm 2 whereas RB-a was found not to be an acute contact poison. Even at a dose of 1257 \mug/cm 2 it could cause 34% mortality of S. oryzae. The oxygen consumption under the effects of Coopex was found to decline less i.e. at 6.12 \mug/cm 2 from 0.0005191 to 0.0006589, as compared to RB-a where the rate of …

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Determination Of The Toxicities Of Fenpropathrin (Pyrethroid) And Neemformulation (Rb-A+Pbo+Tx-100) Against Alphitobius Diaperinus Adults Andtheir Effects On Transaminases, Rahila Tabassum, Syed Naimul Hasan Naqvi, Musarrat Jahan, Syed Mohammad Nurulain, Mohammad Farhanullah Khan, Mohammad Arshad Azmi Jan 1998

Determination Of The Toxicities Of Fenpropathrin (Pyrethroid) And Neemformulation (Rb-A+Pbo+Tx-100) Against Alphitobius Diaperinus Adults Andtheir Effects On Transaminases, Rahila Tabassum, Syed Naimul Hasan Naqvi, Musarrat Jahan, Syed Mohammad Nurulain, Mohammad Farhanullah Khan, Mohammad Arshad Azmi

Turkish Journal of Zoology

This report describes the determination of the toxicity of two pesticides, neem formulation (RB-a+PBO+Tx-100) and fenpropathrin, on Alphitobius diaperinus adults. The mortalities caused by the two compounds were found to be 70% for a 117.8\mug/cm 2 dose of neem formulation, and 88% for a 1.96 \mug/cm 2 dose of synthetic pyrethroid, fenpropathrin (Danitol). The LD 50 value of Danitol was found to be 0.2749 \mug/cm 2 , and that of neem formulation was found to be 58.92 \mug/cm 2 . Danitol-treated Alphitobius diaperinus adults showed inhibitions of 44.66% and 45.91% in GPT and GOT activity, respectively, Whereas insects treated with …

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Biomass Analysis Of Dominant Zooplanktonic Organisms Living In Lakemogan (Turkey), Nuray Emir Akbulut Jan 1998

Biomass Analysis Of Dominant Zooplanktonic Organisms Living In Lakemogan (Turkey), Nuray Emir Akbulut

Turkish Journal of Zoology

In this study carbon-length regression was established for Arctodiaptomus bacilliferand length-weight relationships were established for Diaphanosoma lacustris, Keratella quadrata and Filinia longiseta, which are abundant in Lake Mogan. Great individual variation was determined in the carbon and nitrogen contents of Arctodiaptomus bacillifer, Furthermore, the length-weight regressions varied greatly for the, other zooplanktonic organisms according to sampling dates and, for some, to sampling points.

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Influence Of Sediment On Heavy Metal Uptake By The Polychaete Arenicola Marina, Levent Bat Jan 1998

Influence Of Sediment On Heavy Metal Uptake By The Polychaete Arenicola Marina, Levent Bat

Turkish Journal of Zoology

In this study, the suitability of the polychaete Arenicola marina as a test organism using clean intertidal sediment contaminated with copper, zinc and cadmium was evaluated. Metal levels in casts were significantly lower than in unworked sediment indicating that the bioturbatory activity of lugworms might be significant in the distribution of the pollutants. This study showed that sediments contaminated with specific pollutants affected the uptake of these pollutants by Arenicola in a predictable and dose–dependant way and gave further justification for the use of this species in sediment toxicity tests.

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Ultrastructural Study On The Ovarian Wall And The Oviduct Of The Asellus Aquaticus (Crustacea: Isopoda), B. Melike Erkan Jan 1998

Ultrastructural Study On The Ovarian Wall And The Oviduct Of The Asellus Aquaticus (Crustacea: Isopoda), B. Melike Erkan

Turkish Journal of Zoology

In this study the ovarium, ovarian wall and oviduct of Asellus aquaticus ( A. aquaticus) (Crustacea: Isopoda) were investigated by stereomicroscopy, phase contrast microscopy and light microscopy. Long, tube-shaped, separate ovaries of A. aquaticus are located dorsolateral to the gut. The germinal zone is confined to the ventral region of the ovary as a thin band. The ovarian wall is composed of a few fibrous layers. The oviduct is located in the anterior one-third of the ovary, not in the central part. The sheath of the oviduct was found to possess some muscle cells, a feature first noted in this …

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A Comparison Of Predation Rates On Real And Artificial Nests Of Grassland Birds, William B. Davison Jan 1998

A Comparison Of Predation Rates On Real And Artificial Nests Of Grassland Birds, William B. Davison

Masters Theses

I compared rates of predation between real and artificial nests of grassland birds in order to test the impact of nest type, nest position, and egg size on predation rates. I distributed wicker avicultural baskets and realistic grass nests baited with a clay egg and either northern bobwhite (Colinus virginianus) or house sparrow (Passer domesticus) eggs in four Conservation Reserve Program (CRP) grasslands in east-central Illinois. Nest success averaged 86.5% for 12 days of exposure for artificial nests. For real nests, nest success was markedly lower; averaging 39% over the entire nesting cycle and 59% during approximately 12 days of …

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Heartworm And Lungworms In Illinois' Canids And Their Possible Effect On Coyote Condition And Reproduction, David G. Gregory Jan 1998

Heartworm And Lungworms In Illinois' Canids And Their Possible Effect On Coyote Condition And Reproduction, David G. Gregory

Masters Theses

This study focuses on the prevalence of heartworm and lungworms in Illinois' canid species, and the effect that they may have on condition (body weight, kidney fat, marrow fat) and reproduction (placental scars) on coyote populations. A total of 1,150 coyotes (Canis latrans), 2,269 domestic dogs, 47 red foxes (Vulpes vulpes), and 2 gray foxes (Urocyon cinereoargenteus) were examined. Prevalence of heartworms (Dirofilaria immitis) averaged 17.8% in coyotes, 3.0% in domestic dogs, 2.0% in red foxes, and 0% in gray foxes. Domestic dogs not receiving any type of prophylactic treatment had a higher prevalence (12.5%) of heartworms than dogs on …

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Seasonal Changes In Brown Fat And Pelage In Southern Short-Tailed Shrews, Elisa M. Dew, Keith A. Carson, Robert K. Rose Jan 1998

Seasonal Changes In Brown Fat And Pelage In Southern Short-Tailed Shrews, Elisa M. Dew, Keith A. Carson, Robert K. Rose

Biological Sciences Faculty Publications

We examined cellular changes in interscapular brown adipose tissue and pelage characteristics in Blarina carolinensis collected throughout the year in eastern Virginia. Cellular volume occupied by mitochondria and maximum mitochondrial size were significantly greater in the brown adipose tissue of winter shrews than in summer shrews. Lipid droplets occupied greater volume and were larger in shrews in summer than winter shrews. There were no seasonal differences in hair density; Type I and Type II guard hairs were significantly longer in winter than summer by a factor of 1.3. Woolly hairs were 1.2 times longer in winter than summer, a non-significant …

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