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Articles 301 - 330 of 2429
Full-Text Articles in Behavior and Ethology
Natural And Experimental Noise Affects Acoustic Communication In Songbirds, Veronica Arlene Reed
Natural And Experimental Noise Affects Acoustic Communication In Songbirds, Veronica Arlene Reed
Master's Theses
Background noise is ubiquitous and can impair acoustic communication and influence signaling behavior in animals. Despite evidence demonstrating myriad effects of anthropogenic noise on animal communication, precisely how natural background noise influences communication and behavior remains unclear. Yet, natural sources of background noise, such as rushing rivers or crashing ocean surf, share similar power spectra to sources of anthropogenic noise and can occur at high amplitudes, potentially masking acoustic signals.
To investigate the effects of water-generated noise on songbird behavior, we experimentally broadcast landscape-level playbacks of ocean surf and river noise in coastal California, USA, and riparian habitat in Idaho, …
Behavioral Analysis Of The Cryptoprocta Ferox In An Ex-Situ Condition, Emilie Alfonso
Behavioral Analysis Of The Cryptoprocta Ferox In An Ex-Situ Condition, Emilie Alfonso
The Pegasus Review: UCF Undergraduate Research Journal
Fossas (Cryptoprocta ferox) are the top, endemic predators of Madagascar. Their populations are dwindling and are reported as “Vulnerable” by IUCN. In an effort to combat this, zoological facilities have placed the species on a captive breeding program. This study focuses on concerns one of those zoos had about their captive C. ferox. The purpose of this study was to collect activity budgets on the C. ferox to determine if there is a change in behavior due to construction occurring around the C. ferox’s habitat, analyze behavior changes during estrus, determine any behavior changes, as well …
Observational Study Of Two Ex Situ North American River Otters (Lontra Canadensis), Julia Rifenberg
Observational Study Of Two Ex Situ North American River Otters (Lontra Canadensis), Julia Rifenberg
The Pegasus Review: UCF Undergraduate Research Journal
Zoos enable the ability to study how captive conditions impact the behaviors of animals. In this study, I observed two North American river otters housed at the Central Florida Zoo to evaluate behavioral changes after the male had been removed from the female for a month-long medical examination. The aim of this study was to 1) determine if mating behaviors were still occurring between the two river otters following the male’s removal and 2) to assess the welfare of the male and female river otters in captivity by observing their interactions and individual behaviors. Observed behaviors were compared to documented …
Using Aerial Photogrammetry And Sexually Dimorphic Measurements To Investigate Seasonal Differences In School Composition Of Delphinus Spp. Off Southern California, Samantha Gm Leander
Using Aerial Photogrammetry And Sexually Dimorphic Measurements To Investigate Seasonal Differences In School Composition Of Delphinus Spp. Off Southern California, Samantha Gm Leander
Theses
Insights into school composition can provide a means to understand basic biology and ecology, including reproductive patterns. They can also be applied to conservation assessments, allowing for better understanding of the potentially differential vulnerability of demographic groups to natural or anthropogenic disturbances that may influence their populations. However, the two subspecies of common dolphins in the waters off California (Delphinus delphis delphis and D. d. bairdii) form large, energetic groups that make characterization of school composition difficult. Remotely controlled drones now offer the opportunity for the study of school composition in Delphinus spp., allowing for precise morphometric measurements …
Increased Cave Use By Butterflies And Moths: A Response To Climate Warming?, Otto Moog, Erhard Christian, Rudolf Eis
Increased Cave Use By Butterflies And Moths: A Response To Climate Warming?, Otto Moog, Erhard Christian, Rudolf Eis
International Journal of Speleology
Between 2015 and 2019, the list of Lepidoptera from “cave” habitats (i.e., proper caves, rock shelters and artificial subterranean structures) in Austria grew from 17 to 62 species, although the effort of data collection remained nearly constant from the late 1970s onwards. The newly recorded moths and butterflies were resting in caves during daytime in the the warm season, three species were also overwintering there. We observed Catocala elocata at 28 cave inspections, followed by Mormo maura (18), Catocala nupta (7), Peribatodes rhomboidaria, and Euplagia quadripunctaria (6). More than half of the species have been repeatedly observed in caves …
Solifuge (Camel Spider) Reproductive Biology: An Untapped Taxon For Exploring Sexual Selection, Alfredo V. Peretti, David E. Vrech, Eileen Hebets
Solifuge (Camel Spider) Reproductive Biology: An Untapped Taxon For Exploring Sexual Selection, Alfredo V. Peretti, David E. Vrech, Eileen Hebets
Eileen Hebets Publications
The exploration of new and diverse animal groups in the study of sexual selection is both necessary and important to help better understand broad patterns and test sexual selection hypotheses regarding the evolutionary origins and maintenance of reproductive tactics and associated traits. Solifuges are, in this matter, an exceptional group and very little explored from the sexual selection point of view. At first glance, mating is apparently quite simple and conserved within this arachnid order, but solifuge reproductive behavior is unique among arachnids and more diverse than previously thought. In particular, these voracious animals appear to exhibit high sexual conflict, …
Spiders (Araneae) Collected As Prey By The Mud-Dauber Wasps Sceliphron Caementarium And Chalybion Californicum (Hymenoptera: Sphecidae) In Southeastern Nebraska1, Tyler B. Corey, Earl Agpawa, Eileen Hebets
Spiders (Araneae) Collected As Prey By The Mud-Dauber Wasps Sceliphron Caementarium And Chalybion Californicum (Hymenoptera: Sphecidae) In Southeastern Nebraska1, Tyler B. Corey, Earl Agpawa, Eileen Hebets
Eileen Hebets Publications
Predator diets represent a potential interaction between local prey availability, prey antipredator defenses, and predator foraging behavior. Female spider-specialist muddauber wasps (Hymenoptera: Sphecidae) collect spiders and provision them intact, but paralyzed, to their developing larvae, providing a unique means of quantifying the diversity and abundance of prey that they capture. Mud-dauber wasps are hypothesized to be a major source of selection on antipredator defenses in web-building spiders, and the spiny and thickened abdomens of female spiny orb-weaving spiders (Araneae: Araneidae) are hypothesized to function as antiwasp defenses. We inventoried spider prey from nests of the mud-dauber wasps Sceliphron caementarium (Drury) …
Jaguars And Pumas Exhibit Distinct Spatiotemporal Responses To Human Disturbances In Colombia’S Most Imperiled Ecoregion, Joe J. Figel, Sebastián Botero-Cañola, Juan David Sánchez-Londoño, Javier Racero-Casarrubia
Jaguars And Pumas Exhibit Distinct Spatiotemporal Responses To Human Disturbances In Colombia’S Most Imperiled Ecoregion, Joe J. Figel, Sebastián Botero-Cañola, Juan David Sánchez-Londoño, Javier Racero-Casarrubia
University of Nebraska State Museum: Mammalogy Papers
Abstract
Coexistence of sympatric felids is facilitated by mutual avoidance and the partitioning of habitats, prey, and time. Anthropogenic disturbances disrupt this coexistence in fragmented landscapes, potentially triggering cascading influences in ecological communities. We used photographic data from 8,717 trap nights (November 2014–June 2016) at 87 camera trap sites in Colombia’s middle Magdalena River basin to compare spatiotemporal overlap among jaguars (Panthera onca), pumas (Puma concolor), their prey, and humans, at sites of high and low disturbance, as determined by the human influence index. Human disturbance events (e.g. domestic dogs, livestock, and humans, including armed hunters) …
Social Familiarity Improves Fast-Start Escape Performance In Schooling Fish, Lauren E. Nadler, Mark I. Mccormick, Jacob L. Johansen, Paolo Domenici
Social Familiarity Improves Fast-Start Escape Performance In Schooling Fish, Lauren E. Nadler, Mark I. Mccormick, Jacob L. Johansen, Paolo Domenici
Marine & Environmental Sciences Faculty Datasets
Using social groups (i.e. schools) of the tropical damselfish Chromis viridis, we tested how familiarity through repeated social interactions influences fast-start responses, the primary defensive behaviour in a range of taxa, including fish, sharks, and larval amphibians. We focused on reactivity through response latency and kinematic performance (i.e. agility and propulsion) following a simulated predator attack, while distinguishing between first and subsequent responders (direct response to stimulation versus response triggered by integrated direct and social stimulation, respectively). In familiar schools, first and subsequent responders exhibited shorter latency than unfamiliar individuals, demonstrating that familiarity increases reactivity to direct and, potentially, …
Seasonal Variation In Home-Range And Core-Area Size In Verreaux's Sifaka, Brynn Harshbarger
Seasonal Variation In Home-Range And Core-Area Size In Verreaux's Sifaka, Brynn Harshbarger
Theses, Dissertations and Capstones
Primates living in seasonal forests must adapt to extreme fluctuation in resource availability. Verreaux’s sifaka ( ) live in Madagascar’s highly seasonal tropical dry forests and experience periods of extreme resource abundance and scarcity. Home- range and core-area size were measured using 95% and 50% kernel estimation, and 95% minimum convex polygons to compare seasonal shifts in space use based on resource availability. There have been no long-term space use studies on Verreaux’s sifaka; therefore, we do not know how their space use changes over time in an environment which is both highly seasonal and highly variable. Our study leverages …
Acoustic Communication In The Atlantic Mudskipper, Periopthalmus Barbarus, Seth Hoffman
Acoustic Communication In The Atlantic Mudskipper, Periopthalmus Barbarus, Seth Hoffman
Mahurin Honors College Capstone Experience/Thesis Projects
Mudskippers are intertidal fishes that can survive both in and out of the water. They are territorial and exhibit behaviors to attract mates and defend against competitors. Recently, it has been shown that vibrations are produced and transmitted through the mud during such displays in one species, Periophthalmodon septemradiatus. To see if similar vibrations are produced in other species of mudskippers, I recorded the behavioral interactions of pairs of the mudskipper Periophthalmus barbarus via digital video and acoustic signals via accelerometer. Comparative analysis of fish mass, sex, contest length, and contest outcome coupled with acoustic characteristics within dyadic pairings …
Monograph Reduced Box Price: Managing Human–Deer Conflicts
Monograph Reduced Box Price: Managing Human–Deer Conflicts
Human–Wildlife Interactions
Order form for HWI monograph, Methods for Managing Human–Deer Conflicts in Urban, Suburban, and Exurban Areas. This monograph identifies challenges and benefits associated with many human–deer conflict mitigation actions as well as methods to monitor the response of deer populations to management actions. Deer exploit urban, suburban, and exurban areas where human populations provide anthropogenic attractants, either intentionally or inadvertently, which often leads to human–deer conflicts. Mitigating actions have varying degrees of efficacy and may not be effective or accepted in every situation. Wildlife and municipal managers must work together to seek methods to reduce attractants, mitigate conflicts, and perpetuate …
Thinking Like A Raven: Restoring Integrity, Stability, And Beauty To Western Ecosystems, John M. Marzluff, Matthias-Claudio Loretto, Cameron K. Ho, Georgia W. Coleman, Marco Restani
Thinking Like A Raven: Restoring Integrity, Stability, And Beauty To Western Ecosystems, John M. Marzluff, Matthias-Claudio Loretto, Cameron K. Ho, Georgia W. Coleman, Marco Restani
Human–Wildlife Interactions
Common ravens (Corvus corax; ravens) are generalist predators that pose a threat to several rare wildlife species in the western United States. Recent increases in raven populations, which are fueled by increased human subsidies—notably food, water, and nest sites—are concerning to those seeking to conserve rare species. Due to the challenges and inefficiencies of reducing or eliminating subsidies, managers increasingly rely on lethal removal of ravens. Over 125,000 ravens were killed by the U.S. Government from 1996 to 2019, and annual removals have increased 4-fold from the 1990s to mid-2010s. We contend that lethal removal of ravens, while capable …
Recreation, Vegetation Management, And Disease Impact Sympatric Carnivore Activity In California's East Bay Parks, Leigh J. Douglas
Recreation, Vegetation Management, And Disease Impact Sympatric Carnivore Activity In California's East Bay Parks, Leigh J. Douglas
Cal Poly Humboldt theses and projects
East Bay Regional Park District designated over 1000 ha of protected wildland-urban interface habitat in the hills of California’s East Bay Area for invasive tree removal to reduce fire risk and restore native habitat over a 10-year period starting in 2016. From June to November 2019, 36 camera traps were deployed using a stratified two-pronged detection approach of surveying recreation and wildlife trails to assess the impact of vegetation management on the spatiotemporal distribution of sympatric carnivore species while accounting for potential impacts of human activity and proximity to development. The sampling effort resulted in 5,191 cumulative trap nights, 2,739 …
Characterizing The Host Usage And Development Of Ormia Lineifrons (Diptera: Tachinidae), Kyler J. Rogers
Characterizing The Host Usage And Development Of Ormia Lineifrons (Diptera: Tachinidae), Kyler J. Rogers
Murray State Theses and Dissertations
Insect communication systems are strongly driven by the evolution of signals or signal preferences. These systems rely on a signaler to truthfully emit signals for receivers to interpret. Often, these signals are conspicuously broadcasted. Conspicuous signals involved in animal communication are intended to attract mates, however, these signals are often exploited by eavesdroppers. Thus, many communication systems experience natural selection and sexual selection acting in opposite directions. New adaptations can arise in response to selective pressures, such as eavesdroppers, leading to co-evolving systems between eavesdroppers and hosts, for example. Understanding these systems can provide valuable insight into how unintended receivers …
Multisensory Integration Supports Configural Learning Of A Home Refuge In The Whip Spider Phrynus Marginemaculatus, Kaylyn A.S. Flanigan, Daniel D. Wiegmann, Eileen Hebets, Verner Peter Bingman
Multisensory Integration Supports Configural Learning Of A Home Refuge In The Whip Spider Phrynus Marginemaculatus, Kaylyn A.S. Flanigan, Daniel D. Wiegmann, Eileen Hebets, Verner Peter Bingman
Eileen Hebets Publications
Predator diets represent a potential interaction between local prey availability, prey antipredator defenses, and predator foraging behavior. Female spider-specialist muddauber wasps (Hymenoptera: Sphecidae) collect spiders and provision them intact, but paralyzed, to their developing larvae, providing a unique means of quantifying the diversity and abundance of prey that they capture. Mud-dauber wasps are hypothesized to be a major source of selection on antipredator defenses in web-building spiders, and the spiny and thickened abdomens of female spiny orb-weaving spiders (Araneae: Araneidae) are hypothesized to function as antiwasp defenses. We inventoried spider prey from nests of the mud-dauber wasps Sceliphron caementarium (Drury) …
Visual Control Of Refuge Recognition In The Whip Spider Phrynus Marginemaculatus, Kaylyn A.S. Flanigan, Daniel D. Wiegmann, Patrick Casto, Vincent J. Coppola, Natasha R. Flesher, Eileen Hebets, Verner Peter Bingman
Visual Control Of Refuge Recognition In The Whip Spider Phrynus Marginemaculatus, Kaylyn A.S. Flanigan, Daniel D. Wiegmann, Patrick Casto, Vincent J. Coppola, Natasha R. Flesher, Eileen Hebets, Verner Peter Bingman
Eileen Hebets Publications
Amblypygids, or whip spiders, are nocturnally active arachnids which live in structurally complex environments. Whip spiders are excellent navigators that can re-locate a home refuge without relying on visual input. Therefore, an open question is whether visual input can control any aspect of whip spider spatial behavior. In the current study, Phrynus marginemaculatus were trained to locate an escape refuge by discriminating between differently oriented black and white stripes placed either on the walls of a testing arena (frontal discrimination) or on the ceiling of the same testing arena (overhead discrimination). Regardless of the placement of the visual stimuli, the …
Identification And Quantification Of 11 Airborne Biochemicals Emitted By The Brown Recluse And Another Primitive Hunting Spider Using Headspace Solid-Phase Microextraction-Gc/Ms, Zachary Foulks, Jennifer Parks, William Stoecker, Charles Kristensen, Eileen A. Hebets, Honglan Shi
Identification And Quantification Of 11 Airborne Biochemicals Emitted By The Brown Recluse And Another Primitive Hunting Spider Using Headspace Solid-Phase Microextraction-Gc/Ms, Zachary Foulks, Jennifer Parks, William Stoecker, Charles Kristensen, Eileen A. Hebets, Honglan Shi
Eileen Hebets Publications
Loxosceles reclusa, or brown recluse spider, is a harmful household spider whose habitat extends throughout the Midwest in the USA and other regions in the world. The pheromones and other biomolecules that facilitate signaling for brown recluses and other spider species are poorly understood. A rapid and sensitive method is needed to analyze airborne spider signaling biomolecules to better understand the structure and function of these biochemicals in order to control the population of the spiders. In this study, we developed a novel headspace solid-phase microextraction (HS-SPME)-GC/MS method to analyze potential pheromones and biomolecules emitted by the brown recluse …
Cover, Editorial Staff, Journal Information
Cover, Editorial Staff, Journal Information
Human–Wildlife Interactions
This includes the cover, editorial staff, and journal information.
Residency And Sociality Analysis Of Skin Lesions In Bottlenose Dolphins (Tursiops Truncatus) Of The St. Johns River, Fl, Brittney Divittore-Goodrum
Residency And Sociality Analysis Of Skin Lesions In Bottlenose Dolphins (Tursiops Truncatus) Of The St. Johns River, Fl, Brittney Divittore-Goodrum
UNF Graduate Theses and Dissertations
Photo analysis of skin lesions is a non-invasive method to measure the health of cetacean populations. The St. Johns River (SJR) in NE Florida is an estuarine system inhabited by bottlenose dolphins that is characterized by high levels of anthropogenic activity, which can impact dolphin health. Social transmission of disease may influence lesion formation in dolphins; thus this study aimed to determine if skin lesion prevalence and body coverage differed based on 1) the amount of time spent in the SJR annually and 2) sociality measures. The dataset was restricted to three 12-month periods, based on the occurrence of an …
In The News, Ike Ionel, Jessica Tegt
A Novel Technique To Improve Capture Success Of Common Ravens, Lindsey R. Perry, Terrah M. Owens, Zachary T. Slick, Jimmy D. Taylor, Jonathan B. Dinkins
A Novel Technique To Improve Capture Success Of Common Ravens, Lindsey R. Perry, Terrah M. Owens, Zachary T. Slick, Jimmy D. Taylor, Jonathan B. Dinkins
Human–Wildlife Interactions
Traditional trapping techniques for common ravens (Corvus corax; raven) require significant effort, often produce low capture rates, and cannot be used in some situations. We designed a 3-m noose pole to secure ravens from nocturnal roost locations while using a strobe spotlight to temporarily disorient them. We collected measures of trapping efficiency and contrasted them with padded leghold traps also used in the study. We effectively implemented our noose pole method in July and August of 2018, 2019, and 2020 in the Baker and Cow Lakes sage-grouse (Centrocercus urophasianus) Priority Areas of Conservation in eastern Oregon, …
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Human–Wildlife Interactions
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Lifetime Reproductive Benefits Of Cooperative Polygamy Vary For Males And Females In The Acorn Woodpecker (Melanerpes Formicivorus), Sahas Barve, Christina Riehl, Eric L. Walters, Joseph Haydock, Hannah L. Dugdale, Walter D. Koenig
Lifetime Reproductive Benefits Of Cooperative Polygamy Vary For Males And Females In The Acorn Woodpecker (Melanerpes Formicivorus), Sahas Barve, Christina Riehl, Eric L. Walters, Joseph Haydock, Hannah L. Dugdale, Walter D. Koenig
Biological Sciences Faculty Publications
Cooperative breeding strategies lead to short-term direct fitness losses when individuals forfeit or share reproduction. The direct fitness benefits of cooperative strategies are often delayed and difficult to quantify, requiring data on lifetime reproduction. Here, we use a longitudinal dataset to examine the lifetime reproductive success of cooperative polygamy in acorn woodpeckers (Melanerpes formicivorus), which nest as lone pairs or share reproduction with same-sex cobreeders. We found that males and females produced fewer young per successful nesting attempt when sharing reproduction. However, males nesting in duos and trios had longer reproductive lifespans, more lifetime nesting attempts and higher …
Cover, Editorial Staff, Journal Information
Cover, Editorial Staff, Journal Information
Human–Wildlife Interactions
This includes the cover, editorial staff, and journal information.
Why Advertise In Hwi?
Human–Wildlife Interactions
The benefits of advertising with Human–Wildlife Interactions and how to do so.
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Human–Wildlife Interactions
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Covid-19: The Spearpoint Of Human–Wildlife Interactions, Terry A. Messmer
Covid-19: The Spearpoint Of Human–Wildlife Interactions, Terry A. Messmer
Human–Wildlife Interactions
This is the letter from the editor-in-chief.