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Articles 211 - 240 of 415
Full-Text Articles in Zoology
Growth, Mortality, And Movement Of Endemic Bartram's Bass And Invasive Alabama Bass In Upper Savannah River Basin Tributaries, Tyler Zumwalt
Growth, Mortality, And Movement Of Endemic Bartram's Bass And Invasive Alabama Bass In Upper Savannah River Basin Tributaries, Tyler Zumwalt
All Theses
Bartram’s Bass are an endemic to the Upper Savannah River basin in North Carolina, South Carolina, and Georgia. Bartram’s Bass are facing many risks, primary among them being hybridization with nonnative Alabama Bass. More recently, nonnative Alabama Bass and their hybrid congeners have been observed moving from reservoirs into tributaries where the remaining Bartram’s Bass populations exist. Thus, for Chapter 1 we sought to better understand the threat of nonnative gene spreading in tributary systems. To do this, we 1) quantified the movement of pure Alabama Bass, Bartram’s Bass, and their hybrids, 2) assessed correlations between movement and abiotic variables, …
New Reports Of Smilodon And Panthera From North American Cave Sites With Reviews Of Taxonomy, Biogeography, And History, Matthew Bushell
New Reports Of Smilodon And Panthera From North American Cave Sites With Reviews Of Taxonomy, Biogeography, And History, Matthew Bushell
Electronic Theses and Dissertations
In this study, three new reports of large felids from the Pleistocene are presented and discussed. A single partial left dentary from Jawbone Cave represents the first confirmed presence of S. fatalis in east Tennessee and was sampled for radiocarbon dating. Wind Tunnel and Chilly Bowl Cave are among the first records of P. onca to be identified confidently from Arkansas. Chilly Bowl Cave also produced two trackways attributable to Panthera sp., one set potentially belonging to P. atrox. In addition to the description of these remains and the caves they were found in, taxonomic histories for both S. fatalis …
How Animals Affect Us: Examining The Relationship Between Human-Animal Interactions And Human Well-Being, Elizabeth A. Johnson
How Animals Affect Us: Examining The Relationship Between Human-Animal Interactions And Human Well-Being, Elizabeth A. Johnson
UNLV Theses, Dissertations, Professional Papers, and Capstones
This dissertation utilized a mixed-methods approach which illustrated the potential benefits of HAI in addressing human health concerns, focusing on specific populations within the United States. The chapters presented in this dissertation provide insight into the complex relationships between humans and animals, including the roles of companion animals in promoting human well-being. Chapter three surveys 234 Americans observing COVID-19 stay at home isolation orders and findings suggest that the presence of companion animals alleviates stress and isolation by providing attachment figures and activities on which to focus one’s energy. Chapter four explores women’s oxytocin levels after interacting with their cat …
Disruption Of Play Behavior Influences Development Of Caution In Juvenile Ground Squirrels, William Ryan
Disruption Of Play Behavior Influences Development Of Caution In Juvenile Ground Squirrels, William Ryan
Master's Theses
Play behavior is ubiquitous among young mammals and has a variety of important influences on early development. I evaluated possible influences of social play behavior on the development of temperament in juvenile Belding’s ground squirrels (Urocitellus beldingi), using the caution/boldness spectrum as a measure of temperament. I disrupted the play behavior of juvenile U. beldingi by walking toward juveniles at play until the play interactions stopped. I used undisrupted juveniles and juveniles whose non-play behavior was disrupted at regular intervals as controls. Caution was measured with behavioral tests during which a human intruder walked toward a squirrel and recorded the …
Acoustic Sampling Of Arkansas Bat Species Richness Across Different Seasons And Habitats, Lark E. Sybrant
Acoustic Sampling Of Arkansas Bat Species Richness Across Different Seasons And Habitats, Lark E. Sybrant
ATU Scholars Symposium
Arkansas is home to sixteen bat species belonging to the Vespertilionidae and Molossidae families. Bats are keystone species and provide numerous ecosystem services that also benefit people. This study explores factors that impact species richness between the spring and fall seasons in a wooded rural site (Washburn Park) and an urban field site (Arkansas Tech University campus), Russellville, AR. The non-invasive Echo Meter Touch 2 Pro, from Wildlife Acoustics, was used to record calls and identify bat species from these locations. Nearly 1,050 calls were recorded from 11 different species across the spring and fall between both sites. Results showed …
White Blood Cell Make Up In Kellback Snake Offspring Of Varying Maternal Size, Angelica Mccoy
White Blood Cell Make Up In Kellback Snake Offspring Of Varying Maternal Size, Angelica Mccoy
Symposium of Student Scholars
The immune system is composed of various organs, systems, and other components with one of the most important being white blood cells. White blood cells are commonly separated into two scientific varieties, granulocytes and agranulocytes, which can be differentiated by the presence or absence of granules in the cytoplasm once stained on a slide. There are three granulocytes and two agranulocytes, each with a distinct function and shape. The ratio of these may impact the effectiveness of this portion of the immune system, and multiple factors could play a role in this ratio, an example being the size of an …
Assessing The Dynamics Of The Southeast Florida Shark Community From 2013-2019 Via Catch Per Unit Effort And Stable Isotope Analysis, Alexandra Barth
Assessing The Dynamics Of The Southeast Florida Shark Community From 2013-2019 Via Catch Per Unit Effort And Stable Isotope Analysis, Alexandra Barth
All HCAS Student Capstones, Theses, and Dissertations
Sharks, as well as other top predators, are in drastic decline worldwide. As apex and near-apex predators, species such as nurse, lemon, and tiger sharks maintain balanced marine ecosystems by enacting top-down trophic control. However, this cascading effect is diminished with exploitation via commercial and recreational fishing. Sharks are generally long-lived, mature late, have long reproductive cycles, and produce few offspring. Much remains to be learned about the community structure, population trends and conservation statuses of shark populations worldwide. Comprehensive studies on the composition of the shark community in Southeast Florida north of Miami have been limited. This study assessed …
Plant Sentience: A Hypothesis Based On Shaky Premises, Carel Ten Cate
Plant Sentience: A Hypothesis Based On Shaky Premises, Carel Ten Cate
Animal Sentience
Plants may produce fascinating behavioural phenomena for which the label ‘cognitive process’ may be applicable, at least by some definitions. Segundo-Ortin & Calvo (2023) base their hypothesis that plants might be sentient on the premise of demonstrated presence of cognitive complexity. However, the way phenomena are ascribed, and how the term ‘cognitive’ is used by Segundo-Ortin & Calvo, deviates from the common practice in studies of animal cognition, implying greater complexity than seems justified. It thus provides a questionable basis for attributing sentience to plants.
Implementation Of Seasonal Diets Through Seasonal Diet Surveys In Sloth Bears (Melursus Ursinus): A Case Study At Idaho Falls Zoo, Noah Clever
Undergraduate Honors Thesis Projects
Wild sloth bears (Melursus ursinus) display seasonal diet preferences for insects and fruit during the dry and monsoon season respectively. To potentially utilize as a method for reducing abnormal behaviors and improving animal welfare, the purpose of the study is to survey zoos with captive sloth bears and determine if zoo-housed individuals display seasonal diet preferences. From May 18th, 2022 to March 2nd, 2023 data was collected on Priya, a sloth bear from Idaho Falls Zoo, and her preference for fruit and insects. Temperature, season, fruit choice based on sugar levels, and insect choice based on texture of …
Stress: An Adaptive Problem Common To Plant And Animal Science, Özlem Yilmaz
Stress: An Adaptive Problem Common To Plant And Animal Science, Özlem Yilmaz
Animal Sentience
It is very hard to determine whether plants have “felt states,” but they do have specific states, such as stress, that depend on sensory input from their environment. Plants do not have neurons or brains, but they do have xylem and phloem, as well as many signalling molecules that are dynamically distributed in their bodies, enabling them to produce systemic responses to environmental stimuli. One common topic in plant and animal science that may or may not prove to involve sentience but that does involve the same molecules is stress.
A New Monotypic Genus And Species From China, Langxie Feti Gen. Et Sp. N. (Scorpiones: Buthidae), Victoria Tang, Qingquan Jia, Leonhard Liu
A New Monotypic Genus And Species From China, Langxie Feti Gen. Et Sp. N. (Scorpiones: Buthidae), Victoria Tang, Qingquan Jia, Leonhard Liu
Euscorpius
A new monotypic genus, Langxie gen. n., is described from Xizang (Tibet), China. The new genus shares an important morphological character with Afrolychas Kovařík, 2019: absence of external accessory denticles (EADs) along the sixth row of median denticles (MDs) on the pedipalp movable finger. Langxie gen. n. is different from Afrolychas in the following aspects: loss of EAD near the proximally enlarged MD within each row (i. e., loss of all EAD on the movable finger; this also distinguishes the new genus from other related genera in the “(Ananteris + Isometrus)” clade (Štundlová et …
Benthic Beasts: The Ecological Significance Of Lake Sturgeon And Blue Catfish In Eastern Appalachian Waterways, Stewart Thacker
Benthic Beasts: The Ecological Significance Of Lake Sturgeon And Blue Catfish In Eastern Appalachian Waterways, Stewart Thacker
Research Day
East Tennessee freshwater ecosystems comprise an abundance of an extremely diverse selection of species. This presentation examines Acipenser fulvescens and Ictalurus furcatus, two of the largest freshwater fish in the Appalachian area, which play significant ecological roles within the benthic dimension of our freshwater environments. Commonly known as “bottom-feeders,” Benthivorous species enjoy a broad range of food sources including other fish, detritus, crustaceans, and more. The extensive variety of food consumed by A. fulvescens and I. furcatus permits population control of other, denser, aquatic populations inhabiting other regions of the water column, as well as other organisms included …
What Can Plant Science Learn From Animal Nervous Systems?, Luiz Pessoa
What Can Plant Science Learn From Animal Nervous Systems?, Luiz Pessoa
Animal Sentience
I welcome Segundo-Ortin & Calvo’s (2023) call for a rigorous science of plant behavior and physiology. My commentary addresses three points drawn from the literature on animal brains that could help elucidate the possibility of cognition and sentience in plants: (1) the presumed requirement of a centralized brain; (2) centralization of control versus heterarchical organization; and (3) connecting plant research with research on animal nervous systems.
Questions About Sentience Are Not Scientific But Cultural, Yoram Gutfreund
Questions About Sentience Are Not Scientific But Cultural, Yoram Gutfreund
Animal Sentience
Abstract: The findings of complex cognitive-like behaviours in plants are surprising and exciting. However, they do not provide a scientific reason for ascribing sentience to plants. The target article, in trying to provide evidence for sentience in plants, exposes the weakness of the science of animal consciousness in general. In this commentary, I try to explain why the scientific method is incapable of resolving the question of which organisms or systems are sentient.
A Diverse Flea (Siphonaptera) Assemblage From The Small Mammals Of Central New Mexico, Dianne E. Peterson, Jonathan L. Dunnum, Schuyler W. Liphart, Karen A. Boegler, Ralph P. Eckerlin, Eric P. Hoberg, Martha O. Perez-Arriaga, Katrina Derieg, David Garnand, Mariel L. Campbell, Joseph A. Cook
A Diverse Flea (Siphonaptera) Assemblage From The Small Mammals Of Central New Mexico, Dianne E. Peterson, Jonathan L. Dunnum, Schuyler W. Liphart, Karen A. Boegler, Ralph P. Eckerlin, Eric P. Hoberg, Martha O. Perez-Arriaga, Katrina Derieg, David Garnand, Mariel L. Campbell, Joseph A. Cook
MANTER: Journal of Parasite Biodiversity
The geographical ranges of many mammals and their associated parasites are dynamic. Comprehensive documentation of these communities over time provides a foundation for interpreting how changing environmental conditions, driven by accelerating climate change, other anthropogenic disturbances, and natural events, may influence host-parasite interactions. Fleas (Order Siphonaptera) are obligate, hematophagous parasites of birds and mammals with medical interest because of their role in transmitting pathogens. From 2016 to 2019, we sampled the small mammal and associated flea communities in El Malpais National Conservation Area (El Malpais) in Cibola County, New Mexico. Among 898 mammalian specimens, 925 fleas representing 29 species were …
Abcds Of Triggerfish In Pemba And Misali Island: Abundance, Biodiversity, Behaviour, Cultural Significance And Distribution, Hannah Ng Shueh Yi
Abcds Of Triggerfish In Pemba And Misali Island: Abundance, Biodiversity, Behaviour, Cultural Significance And Distribution, Hannah Ng Shueh Yi
Independent Study Project (ISP) Collection
This study takes a socioecological approach to understanding triggerfish (Balistidae) in Pemba Island, using Misali Island reefs as a sample ecological site. Two reef sites on Misali Island and three of four districts in Pemba were observed during the study. The abundance of Balistipus undulatus at one of two study sites is close to the maximum carrying capacity of the reef. Overall observed biodiversity was low. Behavioural trends point to distinct species specific defence strategies and species aggression taking different forms. Triggerfishes cultural significance was primarily as a food fish, though it is not highly sought after. With polarised responses …
Hydropower To The People: Implications Of A Comparative Macroinvertebrate Study On Either Side Of The Central Hidroeléctrica Topo In Tungurahua, Ecuador, Grace Mazur
Independent Study Project (ISP) Collection
This study uses macroinvertebrates as bioindicators to assess the water quality upstream and downstream of a hydroelectric project in Ecuador’s eastern cloud forest. Ecuador has increasingly turned to hydropower to supply its energy needs as pressure mounts to turn away from fossil fuels. This transition has been realized on the Río Topo, located in the province of Tungurahua. This study aims to determine how the Central Hidroeléctrica Topo (CHT), a diversion hydroelectric project (HEP) constructed on the Río Topo in the 2010s, has affected the water quality of the river. Samples were taken of benthic (bottom-dwelling) macroinvertebrates in the Río …
Anomalies In The Mitochondrial Genomes Of Members Of Aliciidae, Boloceroididae, And Gonactiniidae (Actiniaria:Metridioidea), Isabel Pen
2023 Midwest Ecology & Evolution Conference
Analysis of gene sequences from three mitochondrial and two nuclear genes for a broad sampling of actiniarian taxa proposed a novel grouping of the families Aliciidae, Boloceroididae, and Gonactiniidae. (Rodríguez et al., 2014). Although previously unlinked, the association of these taxa was credible given the consistency of the genetic data and the shared occurrence of anatomical traits, including complex column structures (Aliciidae and Boloceroididae), tentacular sphincters (Boloceroididae and Gonactiniidae), and retention of juvenile musculature in adults (Boloceroididae and Gonactiniidae). Although the mitochondrial genome structure of actiniarians is generally conserved, complete mitochondrial genomes identify unusual gene orders (Alicia sansibarensis: …
Anthropogenic Influences Of Play In The Green Monkeys Of Barbados, Rose Amrhein
Anthropogenic Influences Of Play In The Green Monkeys Of Barbados, Rose Amrhein
2023 Midwest Ecology & Evolution Conference
There are multiple theories behind the evolutionary origins and functions of play behavior in the animal kingdom, all with varying levels of support. Some argue play originated as a byproduct of individuals having excess energy in a resource-rich environment while others argue it arose as a way for young individuals to enhance the physical and mental skills needed to survive into adulthood. Many believe that both these theories are coexisting and applicable to some degree. However, previous play studies usually focused on one group of organisms, failing to consider how animals’ environment directly impacts the structure of their play and …
Rehabilitating An Aging Ichthyology Collection And Turning Into An Effective Teaching Tool For Organismal Biology, Emmy Delekta
Rehabilitating An Aging Ichthyology Collection And Turning Into An Effective Teaching Tool For Organismal Biology, Emmy Delekta
2023 Midwest Ecology & Evolution Conference
Natural history collections are crucial for understanding the world’s biodiversity. These collections also hold important value in educating students about biodiversity, particularly phenotypic diversity. The University of Louisville (UofL) Department of Biology holds a natural history collection, a wet collection of preserved fishes, that appears to have been maintained up through the 1990s. However, due to shifts in funding priorities and faculty interests, much of the collection was relocated and what remains has been neglected for many years. Here, we describe our efforts to rehabilitate, revitalize, and digitize what is left of UofL’s ichthyology collection - transforming it into a …
Habitiat Structure And Ecomorphology Of Fishes In Neotropical Blackwater Creeks., Devya Hemraj-Naraine
Habitiat Structure And Ecomorphology Of Fishes In Neotropical Blackwater Creeks., Devya Hemraj-Naraine
2023 Midwest Ecology & Evolution Conference
Freshwater ecosystems provide habitat for a diversity of aquatic flora and fauna. However, anthropogenic activities like mining and pollution alters aquatic habitats and the ecosystem services they provide. In South America, which hosts one quarter of all freshwater fish species, aquatic habitats are under considerable encroachment from human development. We surveyed nine blackwater creeks tributary to the Demarara River along a major Highway in Guyana to determine whether fish morphology and community structure correlate with habitat characteristics among sites with different degrees of human impact. Twenty-three morphological traits were measured on 3-5 adult specimens of each species. The most abundant …
Functional Implications Reflected In Neurocranial Morphology Of Lamniform Sharks (Elasmobranchii: Lamniformes), Jake J. Wood
Functional Implications Reflected In Neurocranial Morphology Of Lamniform Sharks (Elasmobranchii: Lamniformes), Jake J. Wood
2023 Midwest Ecology & Evolution Conference
Lamniform sharks (Elasmobranchii: Lamniformes) display diverse habitat preferences and lifestyles. Based on museum specimens and published illustrations, we examined the proportion of the anteroposterior length of the rostral, olfactory, optic, and otic regions with respect to the neurocranial length in each lamniform species as a proxy of relative importance of each sensory region (electroreception, olfaction, vision, and ‘coordination’) to its lifestyle. We show that: 1) Carcharias and Megachasma (ragged-tooth and megamouth) have short rostral and large otic regions indicative of slower-swimming pelagic lifestyles with elevated coordination for balancing in the water column; 2) Alopias pelagicus, A. vulpinus, …
Repeatability And Distribution Of Behavior Types Over Time And Across Populations In Free-Ranging Adult And Juvenile Ornate Box Turtles (Terrapene Ornata), Abigail Trautman
Repeatability And Distribution Of Behavior Types Over Time And Across Populations In Free-Ranging Adult And Juvenile Ornate Box Turtles (Terrapene Ornata), Abigail Trautman
2023 Midwest Ecology & Evolution Conference
As studies continue to investigate inter-individual variation, it is becoming increasingly evident that individual animals have their own unique behavior type (personality; repeatable behaviors over time and context) that persists throughout their life. Behavior is simply different forms of motion, and a behavior type influences which motions (behaviors) are most likely to be on display. Behavioral types can influence resource acquisition, predation risk, and mating opportunities and thus can directly influence the fitness of any given individual. In this study, we examine the behavior types of free-ranging adult ornate box turtles (Terrapene ornata), including their repeatability and variation …
Anuran Species Diversity And Abundance Between Three Locations In El Valle De Antón, Coclé, Panamá, Xena Gehring
Anuran Species Diversity And Abundance Between Three Locations In El Valle De Antón, Coclé, Panamá, Xena Gehring
Independent Study Project (ISP) Collection
Panama is an incredibly biodiverse country that houses 230 species of amphibians including 188 species of frogs, 35 of which are endemic to Panama. Commonly found in terrestrial and aquatic habitats, frogs play a very important role in the regulation of insect populations and serve as a valuable food resource to other predators. The greatest threat to amphibian species at this time is Chytridiomycosis, a fungal pathogen that infects the skin and often results in death. Many species of amphibians have already gone completely extinct or are extinct in the wild due to the proliferation of this disease. The skin …
Rocky Intertidal Community Structure Along An Upwelling Gradient Between Playa Venao And Nueva Gorgona On Panama’S Pacific Coast, Claire Brady
Independent Study Project (ISP) Collection
Ecological research on rocky intertidal ecosystems has increasingly focused on the regional oceanographic processes that shape community structure over functional group interactions. Intertidal communities’ dependence on onshore and offshore transport of intertidal species larvae, dissolved inorganic nutrients, and phytoplankton signal that upwelling and nearshore currents can have an influential role in determining the growth and composition of intertidal systems. The community structure of rocky intertidal areas was compared between two locations along an upwelling gradient in the Gulf of Panama: Nueva Gorgona, with intermittent seasonal upwelling, and Playa Venao, with fringe seasonal upwelling. The surface cover of algae, barnacles, and …
Troop Composition And Behavior Of Mantled Howler Monkeys (Alouatta Palliata) In Mangroves And Forested Islands South Of David, Panama, Slate Hyacinthe
Troop Composition And Behavior Of Mantled Howler Monkeys (Alouatta Palliata) In Mangroves And Forested Islands South Of David, Panama, Slate Hyacinthe
Independent Study Project (ISP) Collection
The mantled howler monkey, Alouatta palliata, is one of the most commonly studied and widely distributed primate species in Central America. They have been reported to inhabit mangrove environments in Panama, but few studies have undertaken to describe their demography and behavior in these particular ecosystems. For my study, I spent 12 days studying A. palliata populations in both the mangrove and forested island ecosystems (Isla Parida and Isla Boca Brava) south of David. Seven groups were found in the mangrove environments, and 11 groups were found on the island environments. The mangrove groups were significantly smaller and at a …
Understanding Invasive Predation: Detections Of Feral Cats (Felis Catus) On Kangaroo Island’S Western River Refuge, Leah Boget
Independent Study Project (ISP) Collection
Feral cats (Felis catus) are a priority-level threat for small to medium-sized native vertebrates across Australia and especially so in insular environments like that of Kangaroo Island, South Australia. The island is home to several endangered and geographically restricted species, including the Kangaroo Island Dunnart (Sminthopsis aitkeni), an endangered marsupial endemic to Kangaroo Island. When bushfires spread across the island and burned x percent of native vegetation in late 2019 to early 2020, these populations were critically impacted and post-fire feral cat predation on the island risked their extinctions, motivating the creation of a refuge with …
Impact Of Wildlife Provisioning On Species Diversity, Relative Frequency, And Richness In New South Wales, Alanah Cohen-Tigör
Impact Of Wildlife Provisioning On Species Diversity, Relative Frequency, And Richness In New South Wales, Alanah Cohen-Tigör
Independent Study Project (ISP) Collection
Wildlife provisioning and camera trapping are two recently evolving methods of conservation and wildlife management, aimed at protecting animals in the face of ever worsening climate change. Habitats are being destroyed by climate disruption, decreasing species diversity and abundance worldwide. It is imperative that methods of protecting species are developed to slow or reverse this era of extinction. By providing supplementary food and water to ecological communities, the hope is that species will have improved survivorship and reproduction, making them more resilient and resistant to population decline. Camera trapping is product of modern technology, allowing researchers to monitor species without …
A Survey Of Captive Wild And Exotic Animal Training Programs In The Eastern United States, Savannah Atchison
A Survey Of Captive Wild And Exotic Animal Training Programs In The Eastern United States, Savannah Atchison
Senior Honors Theses
Methods of positive reinforcement as a successful means for animal training are the result of many years of research into operant conditioning and learning. However, current literature is unclear on the extent to which these methods are utilized in captive wild and exotic animal populations in the United States. Through phone interviews with animal trainers employed at zoos and wildlife rehabilitation centers in the eastern United States, the author determined that these facilities are currently utilizing positive reinforcement training methods which are proving to be a great benefit for all parties involved. They are enabling a variety of voluntary health …
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
United States Department of Agriculture Wildlife Services: Staff Publications
We report the spillover of highly pathogenic avian influenza A(H5N1) into marine mammals in the northeastern United States, coincident with H5N1 in sympatric wild birds. Our data indicate monitoring both wild coastal birds and marine mammals will be critical to determine pandemic potential of influenza A viruses.