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Articles 1 - 11 of 11
Full-Text Articles in Biodiversity
Coyotes, Rick Tischaefer
Coyotes, Rick Tischaefer
Wildlife Damage Management Technical Series
The coyote (Canis latrans; Figure 1) is a medium-sized member of the canid family. Once primarily found in western deserts and grasslands, coyotes have expanded their range across North America and into diverse habitats, including urban areas. This expansion occurred during a time of extensive habitat change and efforts by people to suppress coyote populations to prevent damage. Coyotes can cause a variety of conflicts related to agriculture, natural resources, property, and human health and safety. This document highlights a variety of methods for reducing those conflicts. Coyotes are a highly adaptable species and may become habituated to some management …
Feral Swine, Michael P. Glow, Nathan P. Snow, Kurt C. Vercauteren
Feral Swine, Michael P. Glow, Nathan P. Snow, Kurt C. Vercauteren
Wildlife Damage Management Technical Series
Feral swine (Sus scrofa; Figure 1), also known as feral hogs, feral pigs, wild pigs, wild boar, or other similar derivations, are a non-native species considered to be one of the most destructive invasive terrestrial vertebrates in North America. While feral swine populations remained relatively small and confined in the continental United States following initial introductions by European explorers during the 15th century, substantial range expansion has occurred across every geographical region of the United States (Figure 2). This expansion has primarily been attributed to human-mediated movements, predominately for the purpose of establishing populations for recreational hunting, and facilitated by …
Population Status, Threats, And Conservation Of Preuss's Red Colobus (Piliocolobus Preussi) And Other Diurnal Primates In The Ndokbou Forest, Littoral Region, Cameroon, Ruth Bowers-Sword
Population Status, Threats, And Conservation Of Preuss's Red Colobus (Piliocolobus Preussi) And Other Diurnal Primates In The Ndokbou Forest, Littoral Region, Cameroon, Ruth Bowers-Sword
Masters Theses, 2020-current
The Ebo-Makombe-Ndokbou forest block in southwest Cameroon lies within the Gulf of Guinea biodiversity hotspot, characterized by extremely high levels of species richness and endemism, including those of primates. These forests may contain one of the last populations of the Critically Endangered Preuss’s red colobus monkey (Piliocolobus preussi; PRC), which is found only in southeastern Nigeria and western Cameroon. Gun hunting for bushmeat and habitat loss and degradation from logging and agriculture are the main threats to PRC. The conservation status of PRC and other primates in the Ndokbou forest are largely unknown, with most regional research efforts occurring in …
Influences Of Anti-Bd Bacteria On Amphibians And Their Microbiomes, Emme L. Schmidt
Influences Of Anti-Bd Bacteria On Amphibians And Their Microbiomes, Emme L. Schmidt
Honors Thesis
The fungal pathogen Batrochochytrium dendrobatidis (Bd) has been threatening amphibian populations across the globe. Recent work has discovered that bacteria isolated from certain populations of amphibians protect hosts from this pathogen. This project focuses on the anti-fungal mechanisms of Serratia marcescens, a species of bacteria isolated from a Costa Rican frog that dramatically inhibited Bd in culture. Wild-type and recombinant S. marcescens was introduced to the microbiomes of a live amphibian host, Acris blanchardi (Blanchard’s Cricket Frog) and then challenged with Bd to examine the protective effects of this bacteria. The experiment includes recombinant S. marcescens with …
Grackles, Michael J. Bodenchuk, David L. Bergman
Grackles, Michael J. Bodenchuk, David L. Bergman
Wildlife Damage Management Technical Series
Numbering in the tens of millions of birds, grackle populations in North America can cause a variety of conflicts with people. Grackles eat agricultural crops and livestock feed, damage property, spread pathogens, and collide with aircraft. Their large roosts can be a nuisance in urban and suburban areas. A combination of dispersal techniques, exclusion, and lethal removal may help to reduce grackle damage.
Grackles adapt easily to human-dominated environments, and exploit human food and other features of human landscapes. Thus, an integrated damage management approach to grackle damage focuses on reducing and eliminating the damage, rather than simply controlling grackle …
The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov
The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov
Honors Theses
This investigation will collect data to assist in determining if elevated aquatic phosphate levels affects the metamorphosis rate of larval western barred tiger salamanders (Ambystoma mavortium). Monoammonium phosphate fertilizers are being used on crops in Nebraska (NDA, 2017). This area lines up with the area the western barred tiger salamanders are disappearing from (Damme, 2018). Monoammonium phosphate is made up of nitrogen and phosphate. There have been several studies showing how nitrogen is harmful to amphibians such as this salamander (Griffis-Kyle, 2007) (Griffis-Kyle & Richtie, 2007), but there have not been many showing how phosphate affects amphibian’s metamorphosis …
Common Ravens, Luke W. Peebles, Jack O. Spencer Jr.
Common Ravens, Luke W. Peebles, Jack O. Spencer Jr.
Wildlife Damage Management Technical Series
Damage Management Methods for Common Ravens
Type of Control -- Available Management Options
Exclusion -- Often ineffective or impractical
Fertility Control -- None available
Frightening Devices -- Effigies • Pyrotechnics and propane cannons • Lasers and flashing lights
Habitat Modification -- Bale and bury garbage • Install dumpsters with secure lids • Remove or bury dead livestock • Remove abandoned houses, sheds, and barns to eliminate nesting structures
Nest Treatment -- Allowed with proper Federal and State permits; Egg oiling or addling and nest destruction
Repellents -- Methiocarb (EPA Reg. No. 56228-33) • Methyl anthranilate (food-grade grape flavoring agent)
Shooting …
Current Dog Breeding Practices Impacts On Health And Preservation Of Purebred Dogs, Bridget E. Baker
Current Dog Breeding Practices Impacts On Health And Preservation Of Purebred Dogs, Bridget E. Baker
Honors Theses and Capstones
No abstract provided.
What Makes Bats Special So That They Are Reservoirs For So Many Different Pathogens?, Deion Anderson, Eleanor Gorkovchenko, Nicole Hamada, Carolina Martinez, Lupe Martinez
What Makes Bats Special So That They Are Reservoirs For So Many Different Pathogens?, Deion Anderson, Eleanor Gorkovchenko, Nicole Hamada, Carolina Martinez, Lupe Martinez
2020 Symposium Posters
Bats, order Chiroptera, comprise more than 20 percent of all living mammal species with more than 1100 species. Bats are organisms that have high body temperatures and metabolic rates. Therefore, viral adaptation to febrile conditions in the bat host might explain the high reservoir competence that distinguishes these organisms from other mammalian hosts. The purpose of this study is to present a comparative meta-review of the available evidence in order to investigate and identify the reasons or characteristics as to what makes bats special reservoirs for so many different pathogens. Our investigation will not focus on a particular bat species, …
Black Bear, Jimmy D. Taylor, James P. Phillips
Black Bear, Jimmy D. Taylor, James P. Phillips
Wildlife Damage Management Technical Series
The American black bear (Ursus americanus, Figure 1) is a challenging species for wildlife agencies to manage due to its size, intelligence, extensive range, food habits, and adaptability, as well as societal views. In North America alone, agencies receive more than 40,000 complaints about black bear annually. Black bears are known as ‘food-driven’ animals, meaning most conflicts result from a bear’s drive to meet its nutritional needs. Not surprisingly, an overwhelming proportion of conflicts are related to their use of anthropogenic (human) food sources, such as garbage, bird food, and crops. Understanding what drives human-bear conflict is the first part …
Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez
Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez
Theses and Dissertations--Forestry and Natural Resources
North American river otters (Lontra canadensis), native to every U.S. state and Canada, experienced extensive population decreases and range reduction until the mid-20th century as a result of overexploitation and habitat loss during European colonization. The last known river otter in New Mexico was killed on the Gila River in 1953, although unverified reports continued thru 2008. After a nearly 60-year absence from New Mexico, 33 adult river otters were reintroduced to the Rio Pueblo de Taos in the northern part of the state between 2008-2010; however, they were not subsequently monitored or studied. I characterized diet of …