Veterinary Medicine Commons^™

Effect Of Buck Existence On Some Reproductive Hormone Levels During Premating Inakkeçi Goats, Ali̇ Şenok, Erkan Pehli̇van, Fati̇n Cedden

Turkish Journal of Veterinary & Animal Sciences

In this study, the effect of buck presence on serum progesterone, estrogen and FSH levels during the premating in 20 female Akkeçi goats was investigated. The goats were assigned to two groups as follows: control group (n = 10) and treatment group (n = 10). At the beginning of study, first blood samples (day 0) were taken from each goat kept isolated away from bucks at mating season. At day 13, female goats in treatment group were placed in a pen next to, that of bucks in order to provide buck effect. Second blood samples were taken from each does …

Effects Of Age At Feedlot Entry On Performance, Carcass Characteristics, And Beef Qualitytraits Of Holstein Friesian Bulls Reared In High Altitude Of Eastern Turkey, Veysel Fati̇h Özdemi̇r, Mete Yanar

Turkish Journal of Veterinary & Animal Sciences

The objective of this research was to determine the effects of different initial fattening ages on the fattening performance, carcass features, and meat quality traits of Holstein Friesian bulls. A total of 24 Holstein-Friesian intact males were used in the study. The bulls were allocated to the initial fattening age groups named as Young Group (8-10 months old) (YG), Middle Aged Group (12-14 months old) (MAG) and Older Group (15-17 months old) (OG) and then placed in the feedlot based on three age groups at feedlot entry. The data that has normal distribution were analysed by using the LSMM in …

Seroprevalence Of Bovine Viral Diarrhoea Virus, Bovine Herpesvirus Type 1 And Bovineherpesvirus Type 4 Infections In Cattle In Ağrı Province, Eastern Anatolia Region, Turkey, Mustafa Si̇nan Aktaş, Hasan Çeli̇k

Turkish Journal of Veterinary & Animal Sciences

This research was carried out to determine the seroprevalence of Bovine Viral Diarrhoea Virus (BVDV), Bovine Herpes Virus 1 (BoHV-1), and Bovine Herpes Virus 4 (BoHV-4) in cattle (n = 188) in Ağrı province of Eastern Anatolia Region, Turkey. The presence of BVDV, BoHV-1, and BoHV-4 antibodies in sera samples were determined by an ELISA test kit. It was determined that the highest seropositivity for BoHV-1 in Tutak disrict (9.9%), in ≤ 3 years age groups (3.39%), and in Simmental cattle (14.28%); for BoHV-4 in Doğubeyazıt disrict (4.16%), %), in ≤ 3 years age groups (1.70%), and in Simmental cross …

Determination Of Mucopolysaccharidosis Iiid In Some Goat Breeds, Yasemi̇n Gedi̇k, Orhan Kavuncu

Turkish Journal of Veterinary & Animal Sciences

Mucopolysaccharidosis IIID (MPS IIID) or Sanfilippo D syndrome is an inherited lysosomal storage disease and caused by a deficiency of the N-acetylglucosamine-6-sulfatase activity, which involves in the catabolism of heparan sulfate. In addition to humans, canine, feline and murine, goats have been reported as possessing this lysosomal storage disease. The molecular defect in the MPS IIID goat has been previously identified. It has been observed that a molecular base for this defect is a nonsense mutation at nucleotide 322 (C→T) results in the change of the arginine codon to a stop codon. This mutation is not only to be related …

Effect Of Clinical Doses Of Buserelin On In Vivo Bovine Uterine Activity At Estrus, Halef Doğan, Muhterem Aydin

Turkish Journal of Veterinary & Animal Sciences

For successful fertilization, a transfer system named "rapid sperm transport" generated by uterine contractions plays a crucial role. The purpose of this in vivo study was to investigate the effect of buserelin, a GnRH agonist widely used for ovulation induction after mating or artificial insemination, on bovine uterine contractility which supports rapid sperm transport at estrus. In vivo uterine contractile activity was measured by intrauterine pressure recording technique. In the study, the spontaneous uterine contractile activities of 28 cows at estrus were observed for 30 min. The cows were randomly divided into 4 treatment groups which have 7 cows each …

Identification Of Allelic Variants, Differential Expression, And In Silico Analysis Of Caprineserum Lysozyme Gene, Narendra Kumar Nagpal, Pushpendra Kumar, Chinmoy Mishra, Tushar Jyotiranjan, Tarun Kumar Bhattacharya, Bharat Bhushan, Arjava Sharma

Turkish Journal of Veterinary & Animal Sciences

Serum lysozyme gene empowers the immune system due to its bacteriolytic property targeting peptidoglycan layer of cell wall. Polymorphs of serum lysozyme gene are reported to be significantly associated with disease resistance traits. Two different gene fragments viz. fragment I (275 bp) and fragment II (230 bp) of serum lysozyme gene were amplified and screened by polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) technique to identify genetic variation in two different goat breeds (Barbari and Marwari) of India. The serum lysozyme activity of different genotypes and mRNA expression across the breed was also estimated. In fragment I, four genotypes (AA, …

Genetic Relationships Of Thrace And Yığılca Honey Bee Populations Based Onmicrosatellite Structure, Meral Kekeçoğlu, Emel Özkan Ünal, Mehmet İhsan Soysal

Turkish Journal of Veterinary & Animal Sciences

Thrace and Yığılca honey bees, two important honey bee ecotypes in apicultural activity of Turkey, are the subject of genetic conservation effort. In this study, the genetic structure and diversity of honey bee populations from Thrace and Yığılca were investigated using 27 microsatellites. Except Kırklareli and Yığılca (Fst: 0.14), it was observed lower genetic divergence between the populations based on the value of pairwise Fst. Although Thrace populations (Edirne, Tekirdağ and Kırklareli) were not fully separated from each other, Yığılca population was significantly separated from Kırklareli and separated slightly from the rest of other populations. The calculated gene diversity of …

Comparison Of Performance Parameters, Stress, And Immunity Levels Of Native Andcommercial Layers Reared In Different Cage Densities In Turkey, Uğur Özentürk, Ahmet Yildiz

Turkish Journal of Veterinary & Animal Sciences

In this study, production performance, stress, and immunity levels of native Turkish and imported commercial laying hens were investigated in two different cage densities. In the trial, a total of 06 groups were formed by using two different cage densities (312.50 and 468.75 cm$^{2}$/hen) on each of 03 different laying hen hybrids of Isa Brown (IB), Atak-S (A-S) and Novogen White (NW). The trial was carried out with 09 replicates in each group having 10 birds per replicate making 540 birds in total. Water and feed were provided as ad libitum. It was found that the native hybrid showed lower …

Ram Sexual Preferences And Estrous Behavior Expression In Ewes With Differentreproductive Status, Juan González Maldonado, Gustavo Ramírez Valverde, Raymundo Rodríguez De Lara, Jaime Gallegos Sánchez, Javier Antillón Ruiz

Turkish Journal of Veterinary & Animal Sciences

The hypothesis was that the level of sexual experience and reproductive status of ewes affect the time that rams dedicate to courtship. Ewes (n = 40) were separated into four groups according to their reproductive status: maiden, empty, under continuous and restricted suckling ewes. Rams (n = 8) were separated into four groups according to their sexual experience: experienced-I and -II and inexperienced-I and -II. Each group of ewes was exposed at the same time to a different group of rams at 10-12 h intervals for 22 days, an injection of prostaglandin was given to ewes at the end of …

The Effect Of Low Dietary Cation–Anion Difference (Dcad) On Urine Acidification And Acid–Base Balance In Dairy Goats Under Tropical Condition, Dang Khoa Do Nguyen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Global warming is characterized by high ambient temperature (HTa). The negative effects of HTa in tropical condition have been well elucidated in dairy goats. The effect of high dietary cation-anion difference (H-DCAD) has been partially elucidated on dairy goats under tropical condition. However, there is scarce information about the low DCAD (L-DCAD) effect on dairy goats under tropical condition. Thus, the present study aimed to investigate the potential effect of low DCAD on alleviating HTa effect, urine acidification, and acid-base balance in dairy goats under tropical condition. In total, twelve lactating Saanen goats (n=12) were enrolled and divided into a …

Efficacy Of Topical Cbd Application In Dogs Undergoing Medial Patellar Luxation Surgery., Natnicha Pansin

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this study, the post-operative pain and inflammation management after undergoing medial patellar luxation surgery in dogs by the use of CBD ointment and topical NSIADs were compared. The data was collected from the surgery during November 2021 to April 2022, including 10 Pomeranians and 4 Chihuahuas, which were medial patellar luxation (MPL) grade 3. The samples were divided into 3 groups, inclusive of control group and treatment groups that were samples receiving CBD ointment and topical NSAIDs. The clinical evaluations were collected for 2 weeks, which consisted of clinical wound healing evaluation, lameness score, weight bearing score, pain score, …

Plasmodium Bubalis; The Development Of An Effective Detection Method, The Course Of Infection, Co-Infection, Multi-Gene Phylogeny, And The Potential Vector, Yudhi Ratna Nugraheni

Chulalongkorn University Theses and Dissertations (Chula ETD)

Ungulate malaria parasites, such as the species that infects farmed dairy buffaloes (Plasmodium bubalis), have received little attention, with only a few reports in other livestock animals. Therefore, a comprehensive understanding of the parasites, hosts, and mosquito vectors for their biology and molecular evolution remains inadequate. This study aimed to investigate the natural infection of P. bubalis and its suspected vector, develop an effective detection method, and analyze the genome of P. bubalis and related genera. A total of 177 buffaloes’ blood samples were collected from 2019 to 2021 to evaluate the malaria infection status. Mosquitoes were also collected (1,652 …

The Role Of Interleukin-6 (Il-6) On Osteogenic Differentiation Potential Of Human Periodontal Ligament Stem Cells (Hpdlscs) In Vitro, Medania Purwaningrum

Chulalongkorn University Theses and Dissertations (Chula ETD)

Interleukin-6 (IL-6) has been reported significantly increases in inflammation environment and plays pivotal roles in osteogenic differentiation and matrix mineralization enhancement. However, the regulating pathways governing osteogenic differentiation potential by human periodontal ligament stem cells (hPDLSCs) under IL-6 treatment are still unclear. To elucidate this phenomenon, the pathway inhibiton and stimulation strategies were employed. Osteogenic and pathway-related mRNA marker expression, alkaline phosphatase (ALP) activity, matrix mineralization, and b-catenin stabilization and translocation were analyzed. The results showed that IL-6 significantly enhanced osteogenic differentiation in terms of osteogenic marker expression, ALP activity, and matrix mineralization mainly via canonical and non-canonical Wnt pathways …

Minimal Inhibitory And Mutant Prevention Concentrations Of Levofloxacinagainst Gram-Negative Canine Urinary Pathogenic Bacteria, Thanawit Siha-Umphai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Levofloxacin (LEV) is one of the third-generation quinolones with broader spectrum against gram-positive and anaerobic bacteria, compared with the previous generations. LEV is an extra-label antimicrobial drug for treating systemic infection and urinary tract infection (UTI) in dogs in many countries including Thailand. Although the pharmacokinetic data of LEV in dogs has been published, its antimicrobial activity against gram-negative bacteria causing UTI is limited. The aim of this study was to investigate the antimicrobial activities of LEV against canine gram-negative urinary pathogenic bacteria including Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis and Pseudomonas aeruginosa. These gram-negative bacteria were retrieved from dogs …

Spatial Transferability Of Expert Opinion Models For American Beaver Habitat, Isidro Barela, Leslie M. Burger, Guiming Wang, Kristine O. Evans, Qingmin Meng, Jimmy D. Taylor

United States Department of Agriculture Wildlife Services: Staff Publications

Species distribution models and habitat suitability models (HSMs) have become a popular tool in the conservation of biodiversity. However, the ability to predict species spatial distributions at sites beyond the data source sites (i.e., spatial transferability) is critical for the applications of HSMs in the management and conservation of rare or endangered species. The main objective of our study was to assess the predictive performance and spatial transferability of expert opinion models (EOMs). To build EOMs, we identified through extensive literature reviews 17 key landscape variables to characterize habitat use by American beaver (Castor canadensis). We developed 31 pairwise opinion …

Evidence For Continental-Scale Dispersal Of Antimicrobial Resistant Bacteria By Landfill-Foraging Gulls, Christina A. Ahlstrom, Mariëlle L. Van Toor, Hanna Woksepp, Jeffrey C. Chandler, John A. Reed, Andrew B. Reeves, Jonas Waldenström, Alan B. Franklin, David C. Douglas, Jonas Bonnedahl, Andrew M. Ramey

United States Department of Agriculture Wildlife Services: Staff Publications

Anthropogenic inputs into the environment may serve as sources of antimicrobial resistant bacteria and alter the ecology and population dynamics of synanthropic wild animals by providing supplemental forage. In this study, we used a combination of phenotypic and genomic approaches to characterize antimicrobial resistant indicator bacteria, animal telemetry to describe host movement patterns, and a novel modeling approach to combine information fromthese diverse data streams to investigate the acquisition and long-distance dispersal of antimicrobial resistant bacteria by landfill-foraging gulls. Our results provide evidence that gulls acquire antimicrobial resistant bacteria from anthropogenic sources, which they may subsequently disperse across and between …

Evaluating Potential Effects Of Solar Power Facilities On Wildlife From An Animal Behavior Perspective, Rachel Y. Chock, Barbara Clucas, Elizabeth K. Peterson, Bradley Blackwell, Daniel T. Blumstein, Kathleen Church, Esteban Fernández-Juricic, Gabriel Francescoli, Alison L. Greggor, Paul Kemp, Gabriela M. Pinho, Peter M. Sanzenbacher, Bruce A. Schulte, Pauline Toni

United States Department of Agriculture Wildlife Services: Staff Publications

Solar power is a renewable energy source with great potential to help meet increasing global energy demands and reduce our reliance on fossil fuels. However, research is scarce on how solar facilities affect wildlife. With input from professionals in ecology, conservation, and energy, we conducted a research-prioritization process and identified key questions needed to better understand impacts of solar facilities on wildlife. We focused on animal behavior, which can be used to identify population responses before mortality or other fitness consequences are documented. Behavioral studies can also offer approaches to understand the mechanisms leading to negative interactions (e.g., collision, singeing, …

Multi-Level Movement Response Of Invasive Wild Pigs (Sus Scrofa) To Removal, Guillaume Bastille-Rousseau, Peter E. Schlichting, David A. Keiter, Joshua B. Smith, John C. Kilgo, George Wittemyer, Kurt C. Vercauteren, James C. Beasley, Kim M. Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

BACKGROUND: Lethal removal of invasive species, such as wild pigs (Sus scrofa), is often the most efficient approach for reducing their negative impacts. Wild pigs are one of the most widespread and destructive invasive mammals in the USA. Lethal management techniques are a key approach for wild pigs and can alter wild pig spatial behavior, but it is unclear how wild pigs respond to the most common removal technique, trapping.We investigated the spatial behavior of wild pigs following intensive removal of conspecifics via trapping at three sites within the Savannah River Site, SC, USA. We evaluated changes in …

Food Habits Of Wintering Double-Crested Cormorants In The Mississippi Delta, Terrel W. Christie, Brian S. Dorr, J. Brian Davis, Luke A. Roy, Carole R. Engle, Katie Hanson-Dorr, Anita M. Kelly

United States Department of Agriculture Wildlife Services: Staff Publications

Given its ubiquity, it is not surprising that agriculture, including fin fish aquaculture, contributes to food webs worldwide and is used by numerous wildlife for foraging and meeting other needs. Double-crested Cormorants (Phalacrocorax auritus) impact United States commercial aquaculture and are considered the primary avian predator in catfish (Ictalurus spp.) aquaculture facilities in the Mississippi Delta. Recent changes in aquaculture practices, regulatory policies, and decreased overall hectares in production prompted this study that assessed cormorant consumption of catfish in relation to their night roosts through surveys and diet analysis. Cormorants were collected from night roosts from October …

Principal Economic Effects Of Cormorant Predation On Catfish Farms, Carole R. Engle, Terrel W. Christie, Brian S. Dorr, Ganesh Kumar, Luke A. Roy, Anita M. Kelly

United States Department of Agriculture Wildlife Services: Staff Publications

Substantial economic losses of farmed catfish to fish-eating birds such as the double-crested cormorant, Phalacrocorax auritus, continue to be reported on U.S. catfish farms. An economic analysis was conducted of the on-farm effects of both the increased expenditures to scare fish-eating birds from catfish farms and of the value of the catfish that were consumed by cormorants. A survey was conducted of U.S. catfish farmers in the Delta region of Mississippi and Arkansas, to obtain farm-level data on expenditures to scare birds. Estimations of the lost revenue from catfish consumed by cormorants were developed from a concurrent study on …

Environmental Correlates Of Genetic Variation In The Invasive European Starling In North America, Natalie R. Hofmeister, Scott J. Werner, Irby J. Lovette

United States Department of Agriculture Wildlife Services: Staff Publications

Populations of invasive species that colonize and spread in novel environments may differentiate both through demographic processes and local selection. European starlings (Sturnus vulgaris) were introduced to New York in 1890 and subsequently spread throughout North America, becoming one of the most widespread and numerous bird species on the continent. Genome-wide comparisons across starling individuals and populations can identify demographic and/or selective factors that facilitated this rapid and successful expansion. We investigated patterns of genomic diversity and differentiation using reduced-representation genome sequencing of 17 winter-season sampling sites. Consistent with this species' high dispersal rate and rapid expansion history, …

Continental-Scale Dynamics Of Avian Influenza In U.S. Waterfowl Are Driven By Demography, Migration, And Temperature, Erin E. Gorsich, Colleen T. Webb, Andrew A. Merton, Jennifer A. Hoeting, Ryan S. Miller, Matthew Farnsworth, Seth R. Swafford, Thomas J. Deliberto, Kerri Pedersen, Alan B. Franklin, Robert G. Mclean, Kenneth R. Wilson, Paul Doherty

United States Department of Agriculture Wildlife Services: Staff Publications

Emerging diseases of wildlife origin are increasingly spilling over into humans and domestic animals. Surveillance and risk assessments for transmission between these populations are informed by a mechanistic understanding of the pathogens in wildlife reservoirs. For avian influenza viruses (AIV), much observational and experimental work in wildlife has been conducted at local scales, yet fully understanding their spread and distribution requires assessing the mechanisms acting at both local, (e.g., intrinsic epidemic dynamics), and continental scales, (e.g., long-distance migration). Here, we combined a large, continental-scale data set on low pathogenic, Type A AIV in the United States with a novel network-based …

Embracing Dynamic Models For Gene Drive Management, Andrew J. Golnar, Emily W. Ruell, Alun L. Lloyd, Kim M. Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

Robust methods of predicting how gene drive systems will interact with ecosystems is essential for safe deployment of gene drive technology. We describe how quantitative tools can reduce risk uncertainty, streamline empirical research, guide risk management, and promote cross-sector collaboration throughout the process of gene drive technology development and implementation.

Gene drive technologies, although diverse in design and mode of action, are molecular architectures that promote the transmission of genetic information between generations. In theory, the release of one gene-drive-modified organism (GDMO) has the potential to irreversibly alter species, ecosystems, and environmental processes at a global scale (although in practice …

Temporal And Spatial Blood Feeding Patterns Of Urban Mosquitoes In The San Juan Metropolitan Area, Puerto Rico, Matthew W. Hopken, Limarie J. Reyes-Torres, Nicole Scavo, Antoinette J. Piaggio, Zaid Abdo, Daniel Taylor, James Pierce, Donald A. Yee

United States Department of Agriculture Wildlife Services: Staff Publications

Simple Summary: Understanding the biodiversity of urban ecosystems is critical for management of invasive and pest species, conserving native species, and disease control. Mosquitoes (Culicidae) are ubiquitous and abundant in urban ecosystems, and rely on blood meals taken from vertebrates. We used DNA from freshly blood-fed mosquitoes to characterize the diversity of vertebrate host species in the San Juan Metropolitan Area, Puerto Rico. We collected two mosquito species that fed on a variety of vertebrates. Culex quinquefasciatus fed on 17 avian taxa (81.2% of blood meals), seven mammalian taxa (17.9%), and one reptilian taxon (0.85%). Aedes aegypti blood meals were …

Population Genomic Transformations Induced By Isolation Of Wild Bird Avian Influenza Viruses (Orthomyxoviridae) In Embryonated Chicken Eggs, Matthew W. Hopken, Antoinette J. Piaggio, K. L. Pabilonia, James Pierce, Theodore Anderson, Courtney Pierce, Zaid Abdo

United States Department of Agriculture Wildlife Services: Staff Publications

Isolation and cultivation of wild-type viruses in model organism cells or tissues is standard practice in virology. Oftentimes, the virus host species is distantly related to the species from which the culture system was developed. Thus, virus culture in these tissues and cells basically constitutes a host jump, which can lead to genomic changes through genetic drift and/or adaptation to the culture system. We directly sequenced 70 avian influenza virus (Orthomyxoviridae) genomes from oropharyngeal/cloacal swabs collected from wild bird species and paired virus isolates propagated from the same samples following isolation in specific-pathogen-free embryonated chicken eggs. The data were analyzed …

Variation In Angiostrongylus Cantonensis Infection In Definitive And Intermediate Hosts In Hawaii, A Global Hotspot Of Rat Lungworm Disease, Chris Niebuhr, Shane R. Siers, Israel Leinbach, Lisa M. Kaluna, Susan I. Jarvi

United States Department of Agriculture Wildlife Services: Staff Publications

Angiostrongylus cantonensis (rat lungworm) is a tropical and subtropical parasitic nematode, with infections in humans causing angiostrongyliasis (rat lungworm disease), characterized by eosinophilic meningitis. Hawaii has been identified as a global hotspot of infection, with recent reports of high infection rates in humans, as well as rat definitive and snail intermediate hosts. This study investigated variation in A. cantonensis infection, both prevalence and intensity, in wild populations of two species of rats (Rattus exulans and R. rattus) and one species of snail (Parmarion martensi). An overall infection prevalence of 86.2% was observed in P. martensi and …

Estimation Of Wildlife Damage From Federal Crop Insurance Data, Sophie Mckee, Stephanie A. Shwiff, Aaron M. Anderson

United States Department of Agriculture Wildlife Services: Staff Publications

BACKGROUND: Wildlife damage to crops is a persistent and costly problem for many farmers in the USA. Most existing estimates of crop damage have relied on direct assessment methods such as field studies conducted by trained biologists or surveys distributed to farmers. In this paper, we describe a new method of estimating wildlife damage that exploits federal crop insurance data. We focused our study on four crops: corn, soybean, wheat, and cotton, chosen because of their economic importance and their vulnerability to wildlife damage.

RESULTS: We determined crop-raiding hot spots across the USA over the 2015–2019 period and identified the …

Inefficiency Of Anthraquinone-Based Avian Repellents When Applied To Sunflower: The Importance Of Crop Vegetative And Floral Characteristics In Field Applications, Brandon Kaiser, Burton L. Johnson, Mike Ostlie, Scott J. Werner, Page E. Klug

United States Department of Agriculture Wildlife Services: Staff Publications

BACKGROUND: Blackbirds (Icteridae) cause significant damage to sunflower (Helianthus annuus L.) prompting the need for effective management tools. Anthraquinone-based repellents can reduce feeding by > 80% in laboratory settings, but require birds to learn the negative association through repellent ingestion. We evaluated an anthraquinone-based repellent applied directly to mature sunflower plants for its ability to reduce bird damage. We used captive male red-winged blackbirds (Agelaius phoeniceus) to evaluate efficacy of two anthraquinone-based formulations in varying concentrations and applied in a manner attainable by sunflower producers. We also assessed field application methods for repellent coverage and anthraquinone residues when …

Evaluating The Effects Of Mountain Beaver (Aplodontia Rufa) Management On Conifer Stocking In Western Oregon, Jimmy D. Taylor, Vanessa M. Petro

United States Department of Agriculture Wildlife Services: Staff Publications

Mountain beaver (Aplodontia rufa) is the most primitive rodent species in North America and is endemic to the Pacific Northwest, USA. Within their range, mountain beaver cause more conflict with conifer forest regeneration than any other vertebrate species. Most damage occurs as a result of clipping and browsing new seedlings, which reduces stocking density and delays stand development. An integrated approach using trapping and a registered toxicant (baiting) has been suggested as the most efficacious means to reduce seedling loss during stand initiation. We evaluated this management strategy in intensively managed conifer stands across two mountain ranges in …

Avian Use Of Exotic Street Treescapes In Metropolitan Areas Of Phoenix, Arizona, Brian E. Washburn, Karen Hoss, David L. Bergman

United States Department of Agriculture Wildlife Services: Staff Publications

Urban areas are highly modified environments that are strongly influenced by a variety of anthropogenic factors. Consequently, these areas contain unique wildlife communities typically dominated by species that are generalist in nature or highly adaptable. We examined the use of five species of exotic treescapes by exotic and native birds in metropolitan areas of Phoenix, Arizona. House Sparrows [Passer domesticus (37%)], European Starlings [Sturnus vulagris (27%)], Mourning Doves [Zenaida macroura (11%)], and Great-tailed Grackles [Quiscalus mexicanus (7%)] were the most frequently observed species during the study. Approximately two-thirds (67%) of the birds observed during the study were exotic species. Avian …