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Articles 751 - 780 of 819
Full-Text Articles in Animal Sciences
The Influence Of Photoperiod On Size And Development Of Ovarioles In Insecticide Resistant And Susceptible Strains Of The House Fly Musca Domestica L. (Diptera: Muscidae), Seli̇m Süalp Çağlar, İsmai̇l Kudret Sağlam, Muhammet Mustafa Akiner
The Influence Of Photoperiod On Size And Development Of Ovarioles In Insecticide Resistant And Susceptible Strains Of The House Fly Musca Domestica L. (Diptera: Muscidae), Seli̇m Süalp Çağlar, İsmai̇l Kudret Sağlam, Muhammet Mustafa Akiner
Turkish Journal of Zoology
The ovariole development of laboratory-reared insecticide resistant and sensitive strains of the house fly, Musca domestica L. (Diptera: Muscidae) under different photoperiod regimes was examined. Flies were reared under laboratory conditions of 75 ± 5% RH, 25 ± 1 °C and 0:24, 6:18, 12:12, and 18:6 h L:D photoperiods. Each day, 20 female flies were collected from a cohort of females that had emerged on the same date. Ovarioles were dissected from the collected adults and microscopically examined to determine overall length and developmental stage. For the resistant strain, development was most rapid under the photoperiod regimes with more hours …
New Records Of Staphylinidae From Turkey, Syria, And Iran (Insecta: Coleoptera), Si̇nan Anlaş, Önder Deveci̇
New Records Of Staphylinidae From Turkey, Syria, And Iran (Insecta: Coleoptera), Si̇nan Anlaş, Önder Deveci̇
Turkish Journal of Zoology
Additional records of Staphylinidae species from Turkey, Syria, and Iran are presented, including the first country records of Proteinus laevigatus Hochhuth, 1872 from Turkey, Astenus melanurus (Küster, 1853), and Luzea nigritula (Kraatz, 1857) from Syria, and Astenus procerus (Gravenhorst, 1806) from Iran.
Omaloplia Spireae Spireae (Pallas) (Coleoptera: Scarabaeidae), A New Pest Of Sea Buckthorn, Hippophae Rhamnoides L., In Turkey, Hi̇kmet Özbek
Omaloplia Spireae Spireae (Pallas) (Coleoptera: Scarabaeidae), A New Pest Of Sea Buckthorn, Hippophae Rhamnoides L., In Turkey, Hi̇kmet Özbek
Turkish Journal of Zoology
Omaloplia (Acarina) spireae spireae (Pallas, 1773) (Coleoptera: Scarabaeidae) was first detected as a pest of sea buckthorn (Hippophae rhamnoides L.) in Oltu, Erzurum province, in the summer of 2007. Adult O. s. spireae appeared toward the middle of July, fed on H. rhamnoides for approximately 3 weeks, and then disappeared at the end of the first week of August. They fed on the upper surface of the leaves and consumed epidermis and parenchyma tissue, mostly by making longitudinal holes of various shapes and lengths. In some instances the whole leaf lamina was eaten, leaving only the midrib. In time, the …
The Spatial And Temporal Distributions Of Waterbirds In Lakes Akşehir-Eber And Lake Köyceğiz In Western Anatolia, Turkey - A Comparative Analysis, Fulya Saygili, Nuri̇ Yi̇ği̇t, Şafak Bulut
The Spatial And Temporal Distributions Of Waterbirds In Lakes Akşehir-Eber And Lake Köyceğiz In Western Anatolia, Turkey - A Comparative Analysis, Fulya Saygili, Nuri̇ Yi̇ği̇t, Şafak Bulut
Turkish Journal of Zoology
The waterbirds at 2 wetlands (Lakes Akşehir-Eber and Köyceğiz) in western Turkey were compared to determine their spatial and temporal distributions along with their habitat characteristics. The waterbirds were evaluated according to whether they were residents, winter migrants, summer migrants, or transit migrants and were assigned to foraging behavior groups. At Lakes Akşehir-Eber, 67 waterbird species belonging to 17 families and 9 orders were observed, while at Lake Köyceğiz 42 species belonging to 14 families and 9 orders were recorded. The waterbird fauna in both lake systems is composed of the following bird groups in the same order of occurrence: …
The Herpetofauna Of The Sultan Mountains (Afyon-Konya-Isparta), Turkey, Murat Afsar, Cemal Varol Tok
The Herpetofauna Of The Sultan Mountains (Afyon-Konya-Isparta), Turkey, Murat Afsar, Cemal Varol Tok
Turkish Journal of Zoology
In this study, 29 reptile and amphibian species were recorded in 25 different localities in the Sultan Mountains. Of these, 5 were anurans, 1 was a tortoise, 1 was a turtle, 11 were lizards, and 11 were snakes. A chorotype classification of the species recorded in the Sultan Mountains is also given.
Two New Species, Bracon (Lucobracon) Kuzguni Sp. N. And Bracon (Lucobracon) Breviradius Sp. N., From Turkey (Hymenoptera: Braconidae: Braconinae), Ahmet Beyarslan
Two New Species, Bracon (Lucobracon) Kuzguni Sp. N. And Bracon (Lucobracon) Breviradius Sp. N., From Turkey (Hymenoptera: Braconidae: Braconinae), Ahmet Beyarslan
Turkish Journal of Zoology
During studies on the Braconidae fauna of the Black Sea, Central Anatolian and Eastern Anatolian regions of Turkey 2 new species, Bracon (Lucobracon) kuzguni sp. n. and Bracon (Lucobracon) breviradius sp. n., were recorded and described. Important morphological diagnostic characters are figured and they are compared with the related species, B.(L.) triangularis Nees, 1834 and B. (L.) brachycerus Thomson, 1892 respectively.
The Fauna And Systematic Of The Genus Terellia R-D., 1830 (Diptera: Tephritidae) With A Key To The Species Of Terellia In Turkey, Murat Kütük, Mehmet Yaran
The Fauna And Systematic Of The Genus Terellia R-D., 1830 (Diptera: Tephritidae) With A Key To The Species Of Terellia In Turkey, Murat Kütük, Mehmet Yaran
Turkish Journal of Zoology
This study is based on the Terellia species collected from 27 provinces of Turkey during 1999-2006. The locality, host plants (including new records), and figures of the wing pattern of each species are given. An identification key to all 15 species of Terellia known from Turkey is presented and their distribution in Turkey and other countries summarized.
Comparison Of Skeletal Muscle Protein Bands And Trunk Vertebrae Count Between Ommatotriton Ophryticus Nesterovi And O. O. Ophryticus Populations In Turkey, Bi̇lal Kutrup, Ufuk Bülbül
Comparison Of Skeletal Muscle Protein Bands And Trunk Vertebrae Count Between Ommatotriton Ophryticus Nesterovi And O. O. Ophryticus Populations In Turkey, Bi̇lal Kutrup, Ufuk Bülbül
Turkish Journal of Zoology
Skeletal muscle was investigated by SDS-PAGE protein electrophoresis for western versus eastern Turkish populations of the newt Ommatotriton ophryticus. The number of protein bands resolved was 25 in the west and 26 in the east. The modal number of trunk vertebrae was also compared among 10 populations of the eastern group (Artvin, Trabzon, Giresun, and Ordu) and 3 populations of the western group (Zonguldak, Bartın, and Karabük). The eastern group had 13 vertebrae except Şinik (Trabzon) specimens, which had 14 vertebrae, whereas the western group had 12 vertebrae. These data supported the recognition of 2 taxa that would correspond to …
Induction Of Micronuclei And Other Nuclear Abnormalities In Peripheral Erythrocytes Of Nile Tilapia, Oreochromis Niloticus, Following Exposure To Sublethal Cadmium Doses, Ferbal Özkan, Suna Gül Gündüz, Mehmet Berköz, Arzu Özlüer Hunt
Induction Of Micronuclei And Other Nuclear Abnormalities In Peripheral Erythrocytes Of Nile Tilapia, Oreochromis Niloticus, Following Exposure To Sublethal Cadmium Doses, Ferbal Özkan, Suna Gül Gündüz, Mehmet Berköz, Arzu Özlüer Hunt
Turkish Journal of Zoology
The genotoxic effects of sublethal doses of cadmium in peripheral erythrocytes of Oreochromis niloticus was investigated using micronucleus (MN) and nuclear abnormalities (NAs) tests. For this reason, the fish were exposed to medium changes of 0.5 and 1.0 mg/L doses of cadmium (Cd) during an average treatment period of 10 days. On the 2nd, 4th, 6th, and 10th days of the test period, the erythrocytes, including the micronuclei (MN) and other nuclear abnormalities such as lobbed nuclei (LB), blebbed nuclei (BL), and notched nuclei (NT), were counted and pointed out. As a positive control, a 4 mg/L dose of cyclophosphamide …
Cytogenetic Characteristics Of Microtus Dogramacii (Mammalia: Rodentia) Around Amasya, Turkey, Zülal Atli Şekeroğlu, Haluk Kefeli̇oğlu, Vedat Şekeroğlu
Cytogenetic Characteristics Of Microtus Dogramacii (Mammalia: Rodentia) Around Amasya, Turkey, Zülal Atli Şekeroğlu, Haluk Kefeli̇oğlu, Vedat Şekeroğlu
Turkish Journal of Zoology
The banding patterns of chromosomes of Microtus dogramacii, a recently described vole species endemic to Turkey, were studied. G-, C-, and Ag-NOR-banded patterns of this species are reported here for the first time. In this study, 2 karyotypical forms were determined. Each form had the same diploid chromosome numbers (2n = 48), but possessed different autosomal morphologies. For this reason, the samples collected from the research area were karyologically separated into 2 groups, cytotype-1 (NF = 50) and cytotype-2 (NF = 52). All chromosomes possessed centromeric/pericentromeric heterochromatin bands in both karyotypical forms. It was shown that the acrocentric chromosomes of …
The External Morphology Of The Gill Of Patella Caerulea L. (Mollusca: Gastropoda), Deni̇z Akşi̇t, Beri̇a Falakali Mutaf
The External Morphology Of The Gill Of Patella Caerulea L. (Mollusca: Gastropoda), Deni̇z Akşi̇t, Beri̇a Falakali Mutaf
Turkish Journal of Zoology
Gross morphology of the gill was studied using a scanning electron microscope (SEM) in order to associate it with its function in genus Patella. Secondary gills consisted of a single layer of gill folds, which appear mostly as triangular leaflets in scanning electron micrographs. The lamellae showed a prominent thickening on the free margin and horizontal swellings, which bear a series of ciliary structures on the frontal surface, as well as disperse bunches. They differed from the discocilia and, because chemoreception has been attributed to them in the absence of an osphradium, they are thought to contribute to the primary …
Orthoptera And Mantodea Fauna Of Kazdağı (Ida) National Park With Data On The Calling Songs Of Some Bush-Crickets, Hasan Sevgi̇li̇, Ali̇ İsmet Demi̇rsoy, Yusuf Durmuş
Orthoptera And Mantodea Fauna Of Kazdağı (Ida) National Park With Data On The Calling Songs Of Some Bush-Crickets, Hasan Sevgi̇li̇, Ali̇ İsmet Demi̇rsoy, Yusuf Durmuş
Turkish Journal of Zoology
The Orthoptera and Mantodea fauna of Kazdağı National Park (Balıkesir) were investigated. Field studies were conducted between 2004 and 2005. During this study, 34 species of Orthoptera (16 Tettigoniidae, 1 Oecanthidae, 2 Pamphagidae, 1 Tetrigidae, and 14 Acrididae) and 3 species of Mantodea were investigated. Isophya cania, Poecilimon luschani egrigozi, Anadolua schwarzi, Rhacocleis acutangula (Tettigoniidae), Paranocaracris rubripes burri (Pamphagidae), and one recently described species, Chorthippus (Glyptobothrus) kazdaghensis (Acrididae), are endemic taxa. Metrioptera (Broughtonia) arnoldi,, known from the Balkan fauna until now, is a new record for Turkish fauna. The calling songs of Metrioptera arnoldi, Rhacocleis acutangula, Anadolua schwarzi, Isophya cania, …
Description Of Spermatheca And Eggs Of Eurygaster Austriaca (Schrank, 1778) (Heteroptera: Scutelleridae),Based On Optical And Scanning Electron Microscopy, Selami̇ Candan, Zeki̇ye Suludere, Mustafa Güllü
Description Of Spermatheca And Eggs Of Eurygaster Austriaca (Schrank, 1778) (Heteroptera: Scutelleridae),Based On Optical And Scanning Electron Microscopy, Selami̇ Candan, Zeki̇ye Suludere, Mustafa Güllü
Turkish Journal of Zoology
Spermatheca and egg morphology of Eurygaster austriaca (Schrank, 1778) were studied by optical and scanning electron microscopy (SEM). The spermatheca of E. austriaca is characterized by a spermathecal bulb, a pumping region, distal and proximal flanges and ducts, and a genital chamber. Each female was shown to deposit 14 green eggs on average in mass. The spherical eggs averaged 1.05 ± 0.05 mm in diameter. The first external evidence of embryonic development was the appearance of 2 red eye spots opposite each other beneath operculum followed by the appearance of a blackish T-shaped egg-burster between the eye spots. The thickened …
Contribution To The Knowledge Of The Pompilidae (Hymenoptera, Aculeata) Fauna Of Turkey With The Checklist Of Species, Erol Yildirim, Raymond Wahis
Contribution To The Knowledge Of The Pompilidae (Hymenoptera, Aculeata) Fauna Of Turkey With The Checklist Of Species, Erol Yildirim, Raymond Wahis
Turkish Journal of Zoology
This study is based upon material of family Pompilidae collected from different localities in Turkey between 2000 and 2009; the other related studies on the Pompilidae in Turkey were reviewed. Dicyrtomellus kizilkumii (Radoszkowski, 1877) is a new record for Turkish fauna. The authors present also an updated checklist of the Pompilidae fauna of Turkey. Including the new taxon determined in this study a total of 200 species and 5 subspecies from 35 genera of the family Pompilidae were recorded from Turkey to date. Among them, the type localities of 23 species and 1 subspecies from Pompilidae are situated in Turkey. …
The First Record Of Cladocora Caespitosa (Linnaeus, 1767) (Anthozoa, Scleractinia) From The Marmara Sea, Hasan Bariş Özalp, Mustafa Alparslan
The First Record Of Cladocora Caespitosa (Linnaeus, 1767) (Anthozoa, Scleractinia) From The Marmara Sea, Hasan Bariş Özalp, Mustafa Alparslan
Turkish Journal of Zoology
The Scleractinian Cladocora caespitosa is reported for the first time from the Marmara Sea, Turkey. Five colonies of the elliptical Cladocora caespitosa were discovered at 7 m by scuba divers around Posidonia oceanica beds colonising a substrate of sand and rock. The colonies' characteristics were recorded with underwater apparatus with a close-up device and with a video system. The present paper provides the new updated area of the species on the Turkish coast.
Descriptive Characteristics Of Haemopoietic Cell Lineages In A Facultative Air Breathing Fish Clarias Batrachus (L.), Krishna Gangopadhyay, Sumit Homechaudhuri
Descriptive Characteristics Of Haemopoietic Cell Lineages In A Facultative Air Breathing Fish Clarias Batrachus (L.), Krishna Gangopadhyay, Sumit Homechaudhuri
Turkish Journal of Zoology
Haemopoietic tissues of the head kidney of Clarias batrachus were studied for morphometric analysis and ultrastructural descriptions of the erythropoietic and leucopoietic cell populations. Eight successive steps of developing erythrocytes from small lymphoid haemoblasts (SLHs) to mature erythrocytes (MEs) were distinguished. Progressive loss of RNA and synthesis of haemoglobin during haemopoiesis were coupled with denser nucleus and changes in cellular shapes. Transmission electron microscopy aided in clear distinction between cell lineages in the development of erythrocytes, granulocytes, and lymphocytes. Ultrastructural analysis of the pronephric stromal cells forming adherent multilayer of haemopoietic microenvironment was explicit in describing their ability to promote …
Protein And Lipid Amounts Of The Parasitoid Bracon Hebetor Say (Hymenoptera: Braconidae) At Constant And Alternating Temperatures, Özgür Varer Işitan, Nevran Eylem Akman Gündüz, Adem Gülel
Protein And Lipid Amounts Of The Parasitoid Bracon Hebetor Say (Hymenoptera: Braconidae) At Constant And Alternating Temperatures, Özgür Varer Işitan, Nevran Eylem Akman Gündüz, Adem Gülel
Turkish Journal of Zoology
Bracon hebetor Say (Hymenoptera: Braconidae) is a gregarious synovigenic parasitoid that attacks late stage larvae of many important lepidopterous species. The purpose of the current study was to evaluate the influence of 3 constant (18, 25, and 35 °C) and 1 alternating temperature (incubator programmed to vary daily between 18, 25, and 35 °C at 8 h intervals) on protein and lipid amounts of female and male parasitoids. Protein amounts of female parasitoids were highest when exposed to alternating temperature. At all the temperatures tested, 1-day-old males had similar amounts of protein, but 5- and 10-day-old males had higher amounts …
Some Small Mammal Fossils Of Üçağızlı Cave (Hatay, Turkey), Fadi̇me Suata Alpaslan
Some Small Mammal Fossils Of Üçağızlı Cave (Hatay, Turkey), Fadi̇me Suata Alpaslan
Turkish Journal of Zoology
Small mammal assemblages of Üçağızlı Cave, 2 from the early Upper Paleolithic and 1 from the Epipaleolithic, spanning a period from 41 to 17 kya, are described. The remains are referred to as Chionomys nivalis, Microtus guentheri, Apodemus mystacinus, Apodemus flavicollis, Apodemus witherbyi, Mus macedonicus, Mesocricetus brandti, Glirulus sp., Crocidura sp., Pipistrellus cf. kuhlii, and Myotis sp. The rodent fauna of Üçağızlı suggests the dominance of open country and rocky ground with a woodland component. There does not seem to have been any essential environmental changes during the deposition of these layers. However, the poor sample of the Epipaleolithic hampers …
Eulophid Parasitoids (Hymenoptera: Eulophidae) Of The Horse Chestnut Leafminer, Cameraria Ohridella (Lepidoptera: Gracillariidae), From İstanbul, Turkey, Haci Hüseyi̇n Cebeci̇, Giselher Grabenweger, Hami̇t Ayberk
Eulophid Parasitoids (Hymenoptera: Eulophidae) Of The Horse Chestnut Leafminer, Cameraria Ohridella (Lepidoptera: Gracillariidae), From İstanbul, Turkey, Haci Hüseyi̇n Cebeci̇, Giselher Grabenweger, Hami̇t Ayberk
Turkish Journal of Zoology
The eulophid parasitoids (Hymenoptera: Eulophidae) of Cameraria ohridella Deschka and Dimic (Lepidoptera: Gracillariidae) on horse chestnuts (Aesculus hippocastanum L.) in İstanbul were determined for the first time. Horse chestnut leaves infested with leafminers were collected in 2008 and adult parasitoids were obtained in emergence cages in the laboratory. A total of 10 eulophid parasitoid species were identified, 5 of which, namely Cirrospilus viticola (Rondani), Pnigalio mediterraneus (Ferriére and Delucchi), Minotetrastichus frontalis (Nees), M. platanellus (Mercet), and Closterocerus trifasciatus Westwood, were recorded for the first time in Turkey. All of the identified parasitoid species have already been reported as parasitoids of …
New Records Of Two Cheyletid Mite Species (Acari: Cheyletidae) From Iran, Sali̇h Doğan, Mahdi Jalaeian, Hashem Kamali
New Records Of Two Cheyletid Mite Species (Acari: Cheyletidae) From Iran, Sali̇h Doğan, Mahdi Jalaeian, Hashem Kamali
Turkish Journal of Zoology
Two species of the family Cheyletidae (Acari: Prostigmata), Cheletonella vespertilionis Womersley and Cheyletus kuznetzovi Bochkov and Khaustov, are given as new records for the Iranian fauna. This is also the first report of the genus Cheletonella Womersley from Iran.
Use Of Cranial Characters In Taxonomy Of The Minnesota Wolf (Canis Sp.), L. David Mech, Ronald M. Nowak, Sanford Weisberg
Use Of Cranial Characters In Taxonomy Of The Minnesota Wolf (Canis Sp.), L. David Mech, Ronald M. Nowak, Sanford Weisberg
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Minnesota wolves (Canis sp.) sometimes are reported to have affinity to a small, narrow-skulled eastern form (Canis lupus lycaon Schreber, 1775) and sometimes to a larger, broader western form (Canis lupus nubilus Say, 1823). We found that pre-1950 Minnesota wolf skulls were similar in size to those of wolves from southeastern Ontario and smaller than those of western wolves. However, Minnesota wolf skulls during 1970–1976 showed a shift to the larger, western form. Although Minnesota skull measurements after 1976 were unavailable, rostral ratios from 1969 through 1999 were consistent with hybridization between the smaller eastern wolf and …
Wolves, Canis Lupus, Carry And Cache The Collars Of Radio-Collared White-Tailed Deer, Odocoileus Virginianus, They Killed, Michael E. Nelson, L. David Mech
Wolves, Canis Lupus, Carry And Cache The Collars Of Radio-Collared White-Tailed Deer, Odocoileus Virginianus, They Killed, Michael E. Nelson, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Wolves (Canis lupus) in northeastern Minnesota cached six radio-collars (four in winter, two in spring-summer) of 202 radio-collared White-tailed Deer (Odocoileus virginianus) they killed or consumed from 1975 to 2010. A Wolf bedded on top of one collar cached in snow. We found one collar each at a Wolf den and Wolf rendezvous site, 2.5 km and 0.5 km respectively, from each deer’s previous locations.
Movements Of Wolves At The Northern Extreme Of The Species’ Range, Including During Four Months Of Darkness, L. David Mech, H. Dean Cluff
Movements Of Wolves At The Northern Extreme Of The Species’ Range, Including During Four Months Of Darkness, L. David Mech, H. Dean Cluff
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Information about wolf (Canis lupus) movements anywhere near the northern extreme of the species’ range in the High Arctic (.75uN latitude) are lacking. There, wolves prey primarily on muskoxen (Ovibos moschatus) and must survive 4 months of 24 hr/day winter darkness and temperatures reaching 253 C. The extent to which wolves remain active and prey on muskoxen during the dark period are unknown, for the closest area where information is available about winter wolf movements is .2,250 km south. We studied a pack of $20 wolves on Ellesmere Island, Nunavut, Canada (80°N latitude) from July 2009 …
Parsing Demographic Effects Of Canine Parvovirus On A Minnesota Wolf Population, L. David Mech, Sagar M. Goyal
Parsing Demographic Effects Of Canine Parvovirus On A Minnesota Wolf Population, L. David Mech, Sagar M. Goyal
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We examined 35 years of relationships among wolf (Canis lupus) pup survival, population change and canine parvovirus (CPV) seroprevalence in northeastern Minnesota to determine when CPV exerted its strongest effects. Using correlation analysis of data from five periods of 7-years each from 1973 through 2007, we learned that the strongest effect of CPV on pup survival (r = -0.73) and on wolf population change (r = -0.92) was during 1987 to 1993. After that, little effect was documented despite a mean CPV seroprevalence from 1994 of 2007 of 70.8% compared with 52.6% during 1987 to 1993. We …
Problems With Studying Wolf Predation On Small Prey In Summer Via Global Positioning System Collars, Vicente Palacios, L. David Mech
Problems With Studying Wolf Predation On Small Prey In Summer Via Global Positioning System Collars, Vicente Palacios, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We attempted to study predation on various-sized prey by a male and female wolf (Canis lupus) with global positioning system (GPS) collars programmed to acquire locations every 10 min in the Superior National Forest of Minnesota. During May to August 2007, we investigated 147 clusters of locations (31% of the total) and found evidence of predation on a white-tailed deer (Odocoileus virginianus) fawn and yearling, a beaver (Castor canadensis), ruffed grouse (Bonasa umbellus), and fisher (Martes pennanti) and scavenging on a road-killed deer and other carrion. However, we missed finding …
The Scientific Classification Of Wolves: Canis Lupus Soupus, L. David Mech
The Scientific Classification Of Wolves: Canis Lupus Soupus, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Gray wolf, timber wolf, red wolf, eastern wolf, brush wolf, arctic wolf, Mexican wolf, maned wolf, Ethiopian wolf, etc., etc. How many kinds of wolves are there? And what are the differences? This is a really good question, and the answer is getting more complicated all the time. Let us start by going back a few years to the way science looked at wolves more traditionally— before the days of the new field of molecular genetics. Molecular genetics examines the actual DNA of animals and tries to classify them according to genetic similarities. ...
What does all this mean in …
Kin Encounter Rate And Inbreeding Avoidance In Canids, Eli Geffen, Michael Kam, Reuven Hefner, Pall Hersteinsson, Anders Angerbjorn, Love Dalen, Eva Fuglei, Karin Noren, Jennifer R. Adams, John Vucetich, Thomas J. Meier, L. David Mech, Bridgett M. Vonholdt, Daniel R. Stahler, Robert K. Wayne
Kin Encounter Rate And Inbreeding Avoidance In Canids, Eli Geffen, Michael Kam, Reuven Hefner, Pall Hersteinsson, Anders Angerbjorn, Love Dalen, Eva Fuglei, Karin Noren, Jennifer R. Adams, John Vucetich, Thomas J. Meier, L. David Mech, Bridgett M. Vonholdt, Daniel R. Stahler, Robert K. Wayne
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Mating with close kin can lead to inbreeding depression through the expression of recessive deleterious alleles and loss of heterozygosity. Mate selection may be affected by kin encounter rate, and inbreeding avoidance may not be uniform but associated with age and social system. Specifically, selection for kin recognition and inbreeding avoidance may be more developed in species that live in family groups or breed cooperatively. To test this hypothesis, we compared kin encounter rate and the proportion of related breeding pairs in noninbred and highly inbred canid populations. The chance of randomly encountering a full sib ranged between 1–8% and …
The Need To Quantify Ecosystem Services Provided By Birds, Daniel G. Wenny, Travis L. Devault, Matthew D. Johnson, Dave Kelly, Cagan H. Sekercioglu, Diana F. Tomback, Christopher J. Whelan
The Need To Quantify Ecosystem Services Provided By Birds, Daniel G. Wenny, Travis L. Devault, Matthew D. Johnson, Dave Kelly, Cagan H. Sekercioglu, Diana F. Tomback, Christopher J. Whelan
United States Department of Agriculture Wildlife Services: Staff Publications
What are the birds worth--what is their actual dollar value to human society? To most of us in the ornithological community, birds are invaluable. But in these times we need more specific rationales to convince policy makers and business leaders to include bird conservation in land-use and development decisions. Over the past two decades, awareness of our dependence on a variety of ecosystem services (natural ecological processes that benefit human society) and of their importance and prevalence has progressed toward the goal of making conservation a mainstream value. Building strategies for the protection of ecosystem services into conservation and land-use …
Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia
Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia
Biosecurity published reports
Biosecurity is the protection of the economy, environment and human health from the negative impacts of pests, weeds and diseases, including the management of invasive species if they become established (definition adopted by AusBIOSEC).
This requires steps to prevent the entry of harmful organisms, as well as the timely and efficient management of them if they do enter.
Biosecurity threats range from catastrophic diseases such as Foot and Mouth Disease, which causes rapid and widespread animal deaths, to more subtle and slower spreading problems such as invasive weeds, mussels that foul vessel hulls and fungus-induced dieback disease of trees. These …
Use Of Copper Sulfate To Control Haemonchus Contortus Infestation In Hampshire Ewes, Melinda Mallory Simpson
Use Of Copper Sulfate To Control Haemonchus Contortus Infestation In Hampshire Ewes, Melinda Mallory Simpson
University of Kentucky Master's Theses
Two studies were conducted to evaluate the effectiveness of using copper sulfate (CuSO4) as a drench in Hampshire ewes to control stomach worms (Haemonchus contortus).
A study was conducted to assess the effectiveness of CuSO4 to control gastrointestinal nematodes (GIN) over a three year period. Ewes were FAMACHA scored, hematocrit evaluated for packed cell volume (PCV), and fecal egg counts (FEC) were determined from 2007 through 2009. Ewes received only CuSO4 to control GIN. Ewes with FEC exceeding 6,000 eggs/g feces were drenched.
A separate study during the summer of 2008 assessed the potential …