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Articles 14941 - 14970 of 36499
Full-Text Articles in Animal Sciences
Macroanatomical Characteristics Of Plexus Brachialis And Its Branches In Martens (Martes Foina), Yasi̇n Demi̇raslan, Mevlüt Aykut, Özcan Özgel
Macroanatomical Characteristics Of Plexus Brachialis And Its Branches In Martens (Martes Foina), Yasi̇n Demi̇raslan, Mevlüt Aykut, Özcan Özgel
Turkish Journal of Veterinary & Animal Sciences
The purpose of this study was to determine the macroanatomical characteristics of nerves forming the plexus brachialis and originating from plexus in beech martens. A total of 6 beech martens (3 males and 3 females) that died in traffic accidents and were brought to Mehmet Akif Ersoy University's Faculty of Veterinary Medicine, Department of Anatomy on various dates were used in this study. Nerves forming the plexus brachialis and originating from this plexus in martens were dissected and their results were recorded. According to the obtained results, it was observed that the plexus brachialis in beech martens was composed of …
Significance Of Homocysteine And Cardiac Markers In Cattle With Hypocalcemia, Yildiray Başbuğan, Nazmi̇ Yüksek, Nuri̇ Altuğ
Significance Of Homocysteine And Cardiac Markers In Cattle With Hypocalcemia, Yildiray Başbuğan, Nazmi̇ Yüksek, Nuri̇ Altuğ
Turkish Journal of Veterinary & Animal Sciences
This study aimed to determine the levels of homocysteine and cardiac markers in cows with hypocalcemia. This research was conducted with a total of 20 cows, including 10 with hypocalcemia and 10 healthy controls. Hypocalcemia was diagnosed by determining low blood calcium (Ca) levels, and a standard hypocalcemia treatment was initiated in those cows with the disease. Blood samples were taken before the treatment and again 12 h after the treatment, and there was no significant difference in the homocysteine levels between the groups. Ca, ionized calcium (Ica), magnesium (Mg), and phosphorus (P) levels were lower, while cardiac troponin I …
The Effect Of Oxytocin And Prostaglandin Hormones Added Tosemen On Stallion Sperm Quality, Çi̇ğdem Çebi̇ Şen, Ergun Akçay
The Effect Of Oxytocin And Prostaglandin Hormones Added Tosemen On Stallion Sperm Quality, Çi̇ğdem Çebi̇ Şen, Ergun Akçay
Turkish Journal of Veterinary & Animal Sciences
Prostaglandin F2α (PGF2α) and oxytocin have been used to improve reproductive performance in many mammalian species, including humans. The aim of the present study was to determine their effects on sperm quality when extended stallion semen was enriched with PGF2α or oxytocin. In this study, 16 healthy adult stallions, each 15-22 years old, were used. Five ejaculates from each stallion were collected with an artificial vagina during breeding season. Thereafter, gel-free semen was divided into 7 aliquots and diluted with an INRA96 semen extender. The following different treatments were evaluated: 3 with only PGF2α (10, 20, and 40 μg/mL) and …
Sow Fertility After Insemination With Varying Doses Of Volume And Spermatozoa Count, Jelena Apic, Slobodanka Vakanjac, Ivan Stancic, Ivan Radovic, Stoja Jotanovic, Zdenko Kanacki, Branislav Stankovic
Sow Fertility After Insemination With Varying Doses Of Volume And Spermatozoa Count, Jelena Apic, Slobodanka Vakanjac, Ivan Stancic, Ivan Radovic, Stoja Jotanovic, Zdenko Kanacki, Branislav Stankovic
Turkish Journal of Veterinary & Animal Sciences
The aim of the present study was to investigate the possibility of increasing boar's reproductive exploitation by using AI doses of doubly reduced volume and sperm count in the intrauterine AI procedure. The experiment was conducted at a commercial pig farm in Serbia in 2014. Classic intracervical insemination (ICI) was performed by using 50 mL or 100 mL volume doses containing 4 × 109 or 2 × 109 progressively motile spermatozoa. The same volumes and sperm numbers per dose were used with intrauterine insemination (IUI). Each dose combination was used to inseminate 30 sows. Intrauterine insemination with AI doses of …
Development And Validation Of Sandwich Quantitative Elisa Prototypebased On The Bovine Ifng For The Detection Of Cellular Immunity, Oktay Genç, Özlem Büyüktanir, Gülnur Serdar, Yunus Kiliçoğlu, Sali̇h Otlu
Development And Validation Of Sandwich Quantitative Elisa Prototypebased On The Bovine Ifng For The Detection Of Cellular Immunity, Oktay Genç, Özlem Büyüktanir, Gülnur Serdar, Yunus Kiliçoğlu, Sali̇h Otlu
Turkish Journal of Veterinary & Animal Sciences
Immunodiagnostic tests based on in vitro enzymatic methods are mostly preferred to in vivo methods for the detection of cellular immunity due to their cost, applicability, repeatability, and higher sensitivity. Therefore, the development of a quantitative sandwich ELISA prototype detecting bovine IFNg (bIFNg) was planned. In this study, two clone originated monoclonal antibodies were used for capturing the plates, and biotin conjugated monoclonal Ab was used as a secondary antibody in sandwich ELISA. Different approaches such as inter- and intraassay precision and dilution parallelism were evaluated for test validation. The correlation of coefficient variation that is over 95% and 5% …
Evaluation Of The Genetic Resistance Status To Classical And Atypicalscrapie In Karacabey Merino Rams, Yalçin Yaman, Mehmet İhsan Soysal, Cemal Ün
Evaluation Of The Genetic Resistance Status To Classical And Atypicalscrapie In Karacabey Merino Rams, Yalçin Yaman, Mehmet İhsan Soysal, Cemal Ün
Turkish Journal of Veterinary & Animal Sciences
Scrapie, the oldest prion disease of sheep, has two types: classical and atypical scrapie. It was determined that some nucleotide polymorphisms in the PrP coding gene have affected classical and atypical scrapie susceptibility. Consequently, EU member states have established breeding programs aiming to increase genetic resistance of their flocks to classical scrapie. These breeding programs have primarily been implemented in economically important breeds. Thus, we investigated classical and atypical scrapie related PrP genotypes of the Karacabey merino breed, which is of great economic importance in western regions of Turkey. In relation to classical scrapie, three alleles (ARR, ARQ, and VRQ) …
Correlation Between The Milk Vein Internal Diameter Surface Andmilk Yield In Simmental Cows, Damjan Gracner, Gerard Gilligan, Nickholas Garvey, Luis Moreira, Patricia Harvey, Amanda Tierney, Robert Zobel
Correlation Between The Milk Vein Internal Diameter Surface Andmilk Yield In Simmental Cows, Damjan Gracner, Gerard Gilligan, Nickholas Garvey, Luis Moreira, Patricia Harvey, Amanda Tierney, Robert Zobel
Turkish Journal of Veterinary & Animal Sciences
It is known that milk production is directly correlated with the blood flow through the mammary gland, and milk veins drain approximately 90% of the total blood passing through this organ. The aim of the present study was to determine the relationship between milk vein internal diameter surface and milk production in Simmental cows. The milk vein internal diameter was measured by ultrasonography in heifers during the 2nd month of the first gravidity, and again on day 50 following the second calving. After the application of exclusion criteria, the internal vein diameter surface area was mathematically calculated (mm2) for a …
Hitchhiking Bats On The Great Lakes Of North America, Saska E.H. Lohi
Hitchhiking Bats On The Great Lakes Of North America, Saska E.H. Lohi
Dissertations, Master's Theses and Master's Reports
Bats can act as potential vectors for various zoonotic diseases and other pathogens. Therefore their interactions with people should be examined to mitigate potential risks. Bats are small flying mammals and hide in small crevices during daylight hours, making them difficult to observe. Consequently, they have a capacity to “hitchhike” on ships to be dispersed over large distances.
This study focused on anthropogenic unintentional bat translocations, i.e. hitchhiking bats. The study area is the Great Lakes region in North America. Using a web-based questionnaire survey, I asked the public about the frequency of bat-human encounters on ships, their nature, and …
Navigating A Pathway Toward Colorado's Water Future: A Review And Recommendations On Colorado's Draft Water Plan, Lawrence J. Macdonnell, Colorado Water Working Group
Navigating A Pathway Toward Colorado's Water Future: A Review And Recommendations On Colorado's Draft Water Plan, Lawrence J. Macdonnell, Colorado Water Working Group
Books, Reports, and Studies
40 pages (includes color illustrations).
Macroinvertebrate Communities Along The Velika Morava River, Vanja Markovic, Jelena Tomovic, Ana Atanackovic, Margareta Kracun, Marija Ilic, Vera Nikolic, Momir Paunovic
Macroinvertebrate Communities Along The Velika Morava River, Vanja Markovic, Jelena Tomovic, Ana Atanackovic, Margareta Kracun, Marija Ilic, Vera Nikolic, Momir Paunovic
Turkish Journal of Zoology
This paper presents the results of a faunistic study of the macrozoobenthos of the Velika Morava River. The investigation was conducted during the summer and autumn months in 2010. A total of 84 macroinvertebrate taxa have been identified, with Insecta (Ephemeroptera) as the most diverse and Oligochaeta as the most abundant groups. A tubificid worm, Limnodrilus hoffmeisteri, was the most important species with regard to relative abundance and frequency of occurrence. Two rare and endangered species, Theodoxus transversalis and Unio crassus, were recorded, as well as 5 alien species. Locality VM4 (Markovac Bridge) is of particular interest as the northernmost …
Climatic Preferences And Distribution Of 6 Evolutionary Lineages Oftyphlops Vermicularis Merrem, 1820 In Turkey Using Ecological Niche Modeling, Serkan Gül, Yusuf Kumlutaş, Çeti̇n Ilgaz
Climatic Preferences And Distribution Of 6 Evolutionary Lineages Oftyphlops Vermicularis Merrem, 1820 In Turkey Using Ecological Niche Modeling, Serkan Gül, Yusuf Kumlutaş, Çeti̇n Ilgaz
Turkish Journal of Zoology
According to evolutionary biologists, ecology is a very important factor in speciation. Ecology may be effective at driving adaptive divergence between lineages in different environments and climatic conditions. Because Anatolia has major mountain belts, paleogeographic characteristics, and unique climatic traits, it plays an important role in speciation and shows a barrier effect for many terrestrial species. In this study, we investigated the climatic preferences of 6 isolated evolutionary lineages of Typhlops vermicularis in Anatolia using ecological niche modeling. Our results revealed that both glacial (Last Glacial Maximum) and interglacial (Last Interglacial) modeling, as well as current modeling, showed the most …
Two New Flat Mite Species Of Aegyptobia And Pentamerismus(Acari: Tenuipalpidae) From Saudi Arabia, Fahad Jaber Alatawi, Muhammad Kamran
Two New Flat Mite Species Of Aegyptobia And Pentamerismus(Acari: Tenuipalpidae) From Saudi Arabia, Fahad Jaber Alatawi, Muhammad Kamran
Turkish Journal of Zoology
Two flat mite genera, Aegyptobia Sayed and Pentamerismus McGregor (Acari: Tenuipalpidae), are reported for the first time from Saudi Arabia based on 2 new species, Aegyptobia arabica sp. nov. and Pentamerismus bahaensis sp. nov. Specimens of A. arabica and P. bahaensis were collected from Hammada sp. (Amaranthaceae) and Thuja occidentalis L. (Cupressaceae), respectively. In addition, Aegyptobia tragardhi Sayed is recorded from Saudi Arabia for the first time.
New Molecular Data For Parasites Hammerschmidtiella Indicus And Thelandros Scleratus (Nematoda: Oxyurida) To Infer Phylogenetic Position, Anshu Chaudhary, Garima Kansal, Neetu Singh, Hridaya Shanker Singh
New Molecular Data For Parasites Hammerschmidtiella Indicus And Thelandros Scleratus (Nematoda: Oxyurida) To Infer Phylogenetic Position, Anshu Chaudhary, Garima Kansal, Neetu Singh, Hridaya Shanker Singh
Turkish Journal of Zoology
A phylogenetic study of nematode species belonging to Nematoda: Oxyurida from India has been conducted using molecular characters. Molecular marker 18S rRNA (18S) from the nuclear gene was tested and analyses were conducted using the minimum evolution, maximum parsimony, and maximum likelihood methods. Phylogenetic analysis revealed that both of the species Hammerschmidtiella indicus and Thelandros scleratus clustered as sister species with species of Thelastoma and Leidynema, and Parapharyngodon, respectively. Interestingly, the results confirm the taxonomic status of H. indicus and T. scleratus from India.
Distribution Of Hard Tick Species In Ankara, Turkey, Olcay Heki̇moğlu, Ayşe Nurdan Özer
Distribution Of Hard Tick Species In Ankara, Turkey, Olcay Heki̇moğlu, Ayşe Nurdan Özer
Turkish Journal of Zoology
A systematic study has been carried out on hard ticks from Ankara Province, Turkey. Between April 2010 and July 2012, 1800 tick specimens belonging to 9 species were identified at 31 locations in 9 districts. Tick species are listed as follows: Rhipicephalus sanguineus group (43.44%), Rhipicephalus bursa (36.67%), Hyalomma marginatum (8.83%), Haemaphysalis parva (6%), Hyalomma aegyptium (2.39%), Hyalomma excavatum (1.33%), Dermacentor marginatus (1.06%), Haemaphysalis punctata (0.22%), and Hyalomma detritum (0.06%). Ticks were collected from host animals and from vegetation via the flagging method. The species of the genus Rhipicephalus were present in most of the study areas, the most common …
Cryptinae (Hymenoptera: Ichneumonidae) Fauna Of Isfahan Province Of Central Iran, Hossein Barahoei, Elham Nader, Ehsan Rakhshani
Cryptinae (Hymenoptera: Ichneumonidae) Fauna Of Isfahan Province Of Central Iran, Hossein Barahoei, Elham Nader, Ehsan Rakhshani
Turkish Journal of Zoology
A survey on the fauna of the Cryptinae of Isfahan Province was carried out in the summer of 2012. Specimens were collected using Malaise traps and sweeping nets. Nine species belonging to 9 genera of Cryptinae occurring in Isfahan Province were collected and identified. Among them, 7 species have been recorded from Iran previously. These species are Cryptus inculcator (Linnaeus, 1758); Dichrogaster saharator (Aubert, 1964); Gelis areator (Panzer, 1804); Lysibia nana (Gravenhorst, 1829); Mesostenus transfuga Gravenhorst, 1829; Stilpnus gagates (Gravenhorst, 1807); and Trychosis priesneri Rossem, 1971. Mesoleptus laevigatus (Gravenhorst, 1820) and Zoophthorus plumbeus (Thomson, 1884) are new records for the …
First Larval Description Of The Genus Mirabilithrombium Gabry?, 1999(Acari, Microtrombidiidae) From Turkey, Sevgi̇ Sevsay, Sezai̇ Adi̇l
First Larval Description Of The Genus Mirabilithrombium Gabry?, 1999(Acari, Microtrombidiidae) From Turkey, Sevgi̇ Sevsay, Sezai̇ Adi̇l
Turkish Journal of Zoology
Mirabilithrombium turcicum sp. nov. is described based on both active postlarval forms and larvae. Larvae of Mirabilithrombium Gabrys, 1999 were obtained by experimental rearing from a field-collected female and are described for the first time. This is the third species described in the genus; a key to the active postlarval forms is provided. Data on the habitat specificity for the species are provided.
First Record And A New Species Description Of Dudgeodes (Ephemeroptera: Teloganodidae) From South India, Sankarappan Anbalagan, Chellapandian Balachandran, Mani Kannan, Sundaram Dinakaran, Muthukalingan Krishnan
First Record And A New Species Description Of Dudgeodes (Ephemeroptera: Teloganodidae) From South India, Sankarappan Anbalagan, Chellapandian Balachandran, Mani Kannan, Sundaram Dinakaran, Muthukalingan Krishnan
Turkish Journal of Zoology
Dudgeodes bharathidasani sp. nov. is described from the Western Ghats of South India. The nymphs of this species were found in the seepage areas of a stream, and they were associated with the nets constructed by trichopteran larvae (Hydropsychidae: Hydropsyche).
New Data On Distribution, Ecology, And Taxonomy Of Turkish Nitidulidae (Coleoptera), Saki̇ne Serap Avgin, Gloria Antonini, Andrzej Lason, Nicklas Jansson, Tuba Öncül Abacigi̇l, Saki̇n Vural Varli, Alessio De Biase, Paolo Audisio
New Data On Distribution, Ecology, And Taxonomy Of Turkish Nitidulidae (Coleoptera), Saki̇ne Serap Avgin, Gloria Antonini, Andrzej Lason, Nicklas Jansson, Tuba Öncül Abacigi̇l, Saki̇n Vural Varli, Alessio De Biase, Paolo Audisio
Turkish Journal of Zoology
This paper updates our present knowledge on the geographical distribution and host plant relationships of Turkish species of the sap- and pollen-beetle family Nitidulidae. Pria zenobia Jelínek, 1997 from eastern Mediterranean areas is synonymized with Pria angustula Cooper, 1982, from South Africa (syn. nov.). The unknown ovipositor of Xerogethes osellai Audisio & Jelínek, 2000, a species endemic to central Turkey, is described, and the first information on its biology is reported. Glischrochilus quadripunctatus (Linnaeus, 1758) (Tunceli Province) and Pityophagus quercus Reitter, 1877 (Balikesir Province) are first recorded for the Turkish fauna. The distributions of Glischrochilus hortensis (Geoffroy in Fourcroy, 1785), …
A New Subspecies Of Lyciasalamandra Flavimembris (Urodela: Salamandridae) From Muğla, Southwestern Turkey, Nazan Üzüm, Azi̇z Avci, Emi̇n Bozkurt, Kurtuluş Olgun
A New Subspecies Of Lyciasalamandra Flavimembris (Urodela: Salamandridae) From Muğla, Southwestern Turkey, Nazan Üzüm, Azi̇z Avci, Emi̇n Bozkurt, Kurtuluş Olgun
Turkish Journal of Zoology
A new Lycian salamander subspecies, Lyciasalamandra flavimembris ilgazi subsp. nov., is described from southwestern Anatolia, Turkey. It differs from nominate subspecies by its characteristic color pattern, especially the ground color of the dorsum, tail, upper eyelids, and limbs. Its distribution is limited to the type locality (Kötekli, Muğla Province, Turkey).
New Records Of Tenuipalpid Mites (Acari: Tenuipalpidae) For The Georgian And Caucasus Fauna, Tea Arabuli, Sultan Çobanoğlu, Eristo Kvavadze
New Records Of Tenuipalpid Mites (Acari: Tenuipalpidae) For The Georgian And Caucasus Fauna, Tea Arabuli, Sultan Çobanoğlu, Eristo Kvavadze
Turkish Journal of Zoology
Three flat mite species-Brevipalpus cuneatus (Canestrini & Fanzago, 1876), Aegyptobia tragardhi Sayed, 1950, and Aegyptobia beglarovi Livschitz & Mitrofanov, 1967-were registered for the first time for the Georgian fauna, of which B. cuneatus and A. tragardhi are new records in the Caucasus. Consequently, in adding these new records, the total number of tenuipalpid mites in Georgia is increased to 31 species.
A New Record For The Spider Fauna Of Iran: Olios Sericeus (Araneae: Sparassidae), Salman Shalchian Tabrizi, Shahrokh Pashaei Rad, Zeinab Hedayati
A New Record For The Spider Fauna Of Iran: Olios Sericeus (Araneae: Sparassidae), Salman Shalchian Tabrizi, Shahrokh Pashaei Rad, Zeinab Hedayati
Turkish Journal of Zoology
In this study, Olios sericeus (Kroneberg, 1875) is introduced as a new record to the fauna of the spiders of Iran. Photos and a drawing of the male specimen are presented and its zoogeographic distribution is discussed.
Alopecosa Psammophila Buchar, 2001 (Araneae: Lycosidae): Morphometricdata And First Record For Romania, Eva Hajnalka Sas Kovacs, Istvan Sas Kovacs, Istvan Urak
Alopecosa Psammophila Buchar, 2001 (Araneae: Lycosidae): Morphometricdata And First Record For Romania, Eva Hajnalka Sas Kovacs, Istvan Sas Kovacs, Istvan Urak
Turkish Journal of Zoology
The present work reports for the first time the occurrence of Alopecosa psammophila (Araneae: Lycosidae) in Romania. It was identified in the autumn of 2013 in 2 habitats located in northwestern Romania, at a Natura 2000 site. Both habitats are represented by open and dry sandy grasslands. Comparison of standard body measurements showed that males have longer legs than females, but the total body length of females is greater than that of males.
Collyriclum Faba (Digenea: Collyriclidae) In Migrant Phylloscopus Trochilus(Aves: Sylvidae) In Egypt: The First Record Of The Parasite On The African Continent, Izabella Rzad, Przemyslaw Busse
Collyriclum Faba (Digenea: Collyriclidae) In Migrant Phylloscopus Trochilus(Aves: Sylvidae) In Egypt: The First Record Of The Parasite On The African Continent, Izabella Rzad, Przemyslaw Busse
Turkish Journal of Zoology
The aim of this paper is to document the presence of the avian trematode Collyriclum faba in Egypt. During bird migration, parasitological research was carried out along the East European bird migration flyway (Jordan, Palestine, Egypt) in 2012-2014. A total of 1783 birds belonging to 87 species, mainly passerines, were macroscopically examined for the presence of parasites. An adult male individual of the willow warbler, Phylloscopus trochilus, examined in Aswan, southern Egypt, presented 5 subcutaneous cysts containing parasites identified as C. faba located on its thighs, above the eye, and on the body under the wing. The parasites were probably …
A New And Simple Technique For The Isolation Of Symbiotic Bacteria Associated With Entomopathogenic Nematodes (Heterorhabditidae And Steinernematidae), Derya Uluğ, Canan Hazir, Selçuk Hazir
A New And Simple Technique For The Isolation Of Symbiotic Bacteria Associated With Entomopathogenic Nematodes (Heterorhabditidae And Steinernematidae), Derya Uluğ, Canan Hazir, Selçuk Hazir
Turkish Journal of Zoology
This study describes a new, simple, and economical method for isolation of symbiotic bacteria from entomopathogenic nematodes. Isolation of the symbiotic bacteria from entomopathogenic nematodes is useful for mass production of the nematodes. In addition to traditional isolation methods from infected insect larvae or infective juveniles, we show a new method of isolating symbiotic bacteria from either gravid females or females in the endotokia matricida stage, producing symbiont colonies after a very short period of surface sterilization.
The Role Of Citizens In Detecting And Responding To A Rapid Marine Invasion, Steven B. Scyphers, Sean P. Powers, J. Lad Akins, J. Marcus Drymon, Charles W. Martin, Zeb H. Schobernd, Pamela J. Schofield, Robert L. Shipp, Theodore S. Switzer
The Role Of Citizens In Detecting And Responding To A Rapid Marine Invasion, Steven B. Scyphers, Sean P. Powers, J. Lad Akins, J. Marcus Drymon, Charles W. Martin, Zeb H. Schobernd, Pamela J. Schofield, Robert L. Shipp, Theodore S. Switzer
University Faculty and Staff Publications
Documenting and responding to species invasions requires innovative strategies that account for ecological and societal complexities. We used the recent expansion of Indo-Pacific lionfish (Pterois volitans/miles) throughout northern Gulf of Mexico coastal waters to evaluate the role of stakeholders in documenting and responding to a rapid marine invasion. We coupled an online survey of spearfishers and citizen science monitoring programs with traditional fishery-independent data sources and found that citizen observations documented lionfish 1–2 years earlier and more frequently than traditional reef fish monitoring programs. Citizen observations first documented lionfish in 2010 followed by rapid expansion and proliferation in …
Observations Of Hippopotamus H. Amphibius In The Little Scarcies River Of Sierra Leone And Arguments For Their Conservation Based On Roles They Play In Riverine Grasslands And Nutrient Loading, Lindsey R. Perry
Dissertations, Master's Theses and Master's Reports
A small population of Hippopotamus amphibius remains in Sierra Leone and conservation efforts may be needed to support the Hippos and their indirect benefits to fisheries and grassland production. The hippo is a known ecosystem engineer, and a potentially important contributor of nutrients to the river systems they inhabit supporting the food web and local fisheries. In this study I observed hippos in the Little Scarcies River and uplands of the Outamba-Kilimi National Park to estimate their numbers and ultimately their potential input of nutrients into the river. Hippos forage at night in grasslands neighboring rivers, removing up to 3.62 …
Yellowstone Wolf (Canis Lupus) Density Predicted By Elk (Cervus Elaphus) Biomass, L. David Mech, Shannon M. Barber-Meyer
Yellowstone Wolf (Canis Lupus) Density Predicted By Elk (Cervus Elaphus) Biomass, L. David Mech, Shannon M. Barber-Meyer
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The Northern Range (NR) of Yellowstone National Park (YNP) hosts a higher prey biomass density in the form of elk (Cervus elaphus L., 1758) than any other system of gray wolves (Canis lupus L., 1758) and prey reported. Therefore, it is important to determine whether that wolf–prey system fits a long-standing model relating wolf density to prey biomass. Using data from 2005 to 2012 after elk population fluctuations dampened 10 years subsequent to wolf reintroduction, we found that NR prey biomass predicted wolf density. This finding and the trajectory of the regression extend the validity of the model …
Harvest Demographics Of Temperate-Breeding Canada Geese In South Dakota, 1967–1995, Jeffrey S. Gleason, Jonathan A. Jenks, David E. Naugle, Paul W. Mammenga, Spencer J. Vaa, Jennifer M. Pritchett
Harvest Demographics Of Temperate-Breeding Canada Geese In South Dakota, 1967–1995, Jeffrey S. Gleason, Jonathan A. Jenks, David E. Naugle, Paul W. Mammenga, Spencer J. Vaa, Jennifer M. Pritchett
Human–Wildlife Interactions
In South Dakota, breeding giant Canada geese (Branta canadensis maxima) have increased substantially, and harvest management strategies have been implemented to maximize hunting opportunity (e.g., special early-September seasons) on local, as well as molt-migrant giant Canada geese (B. c. interior) while still protecting lesser abundant Arctic breeding Canada geese and cackling geese (e.g., B. hutchinsii, B. minima). Information on important parameters, such as survival and recovery rates, are generally lacking for giant Canada geese in the northern Great Plains. Patterns in Canada goose band recoveries can provide insight into the distribution, chronology, and harvest pressures …
Methodology For Estimating Deer Browsing Impact, Timothy G. Pierson, David S. Decalesta
Methodology For Estimating Deer Browsing Impact, Timothy G. Pierson, David S. Decalesta
Human–Wildlife Interactions
Because there were no reliable indicators of deer browsing on tree seedling regeneration, we developed methodology that can be used to measure deer browsing impact. We compared 11 years (2002 to 2012) of annual estimates of deer density with coarse (percent-plots-no-regeneration, percent-plots-no-impact) and fine (3 levels of impact on 6 indicator seedling species) indicators within a 29,642-ha study area in northwestern Pennsylvania. Coarse and fine measures met established criteria for indicators of environmental stress (e.g., high deer density); they were predictive of stresses that can be: avoided by management; integrative with causes of stress; responsive to disturbances and changes over …
Changes In Distribution Of Canada Geese Nesting In Arkansas, M. Eliese Ronke, David G. Krementz
Changes In Distribution Of Canada Geese Nesting In Arkansas, M. Eliese Ronke, David G. Krementz
Human–Wildlife Interactions
The reintroduced Canada goose (Branta canadensis) population in Arkansas has grown in range and abundance in recent decades. We determined the geographic range of Arkansas resident Canada geese from 2004 to 2012 using volume contour maps from citizen science observations using eBird, a citizen science website, and hunter recovery locations from the U.S. Geological Survey Bird Banding Laboratory. Resulting maps indicate an increase in Canada goose encounters toward northwestern and southwestern Arkansas from the original relocations in the Arkansas River valley. We examined movement of Canada geese banded and recovered in Arkansas by determining the distance and angle …