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Articles 1 - 25 of 25
Full-Text Articles in Behavior and Ethology
Does Seed-Caching Experience Affect Spatial Memory Performance By Pinyon Jays?, B. Lucas Stafford, Russell P. Balda, Alan Kamil
Does Seed-Caching Experience Affect Spatial Memory Performance By Pinyon Jays?, B. Lucas Stafford, Russell P. Balda, Alan Kamil
Papers in Behavior in Biological Sciences
Food-storing birds use spatial memory to find previously cached food items. Throughout winter, pinyon jays (Gymnorhinus cyanocephalus) rely heavily on cached pinyon pine (Pinus edulis) seeds. Because of a recent severe drought, pinyon pine trees had not produced a significant seed crop for several years. Therefore, 1- and 2-year-old birds never had the opportunity to cache and recover seeds and birds 4 or more years of age had not recovered seeds in 3 years. This study examined whether natural but extreme variability in experience might result in differences in abstract spatial memory ability during a non-cache …
Linking Life Zones, Life History Traits, Ecology, And Spatial Cognition In Four Allopatric Southwestern Seed Caching Corvids, Russell P. Balda, Alan Kamil
Linking Life Zones, Life History Traits, Ecology, And Spatial Cognition In Four Allopatric Southwestern Seed Caching Corvids, Russell P. Balda, Alan Kamil
Papers in Behavior in Biological Sciences
This report will review the similarities and differences of four species of pine seed caching members of the avian family Corvidae that live on the slopes and base of the San Francisco Peaks in north-central Arizona. The four species include the Clark’s nutcracker (Nucifraga columbiana), pinyon jay (Gymnorhinus cyanocephalus), western scrub-jay (Aphelocoma californica), and Mexican jay (A. ultramarina). These corvids demonstrate a specialization gradient for the harvesting, transporting, caching and recovering of buried pine seeds. This gradient is reflected in their dependence on cached pine seeds for winter and early spring survival …
The Role Of Visual Ornamentation In Female Choice Of A Multimodal Male Courtship Display, Eileen Hebets, K. Cuasay, P. K. Rivlin
The Role Of Visual Ornamentation In Female Choice Of A Multimodal Male Courtship Display, Eileen Hebets, K. Cuasay, P. K. Rivlin
Eileen Hebets Publications
The courtship behavior of male Schizocosa uetzi wolf spiders incorporates both visual and seismic signals into a multimodal display. These two signals have been shown to interact in such a manner that the seismic signal alters a female’s response to the visual signal, leading to a putative increased importance of visual signaling in the presence of a seismic signal. Experiments leading to this attention-focusing hypothesis relied in part on the video playback technique, eliciting the question of its significance under more biologically relevant conditions. Here, we directly examine female mate choice of males with differing visual signals (foreleg pigmentation) both …
Influence Of Optical Cues From Conspecific Females On Escalation Decisions During Male-Male Interactions Of Jumping Spiders, Fiona R. Cross, Robert R. Jackson, Simon D. Pollard, Mark W. Walker
Influence Of Optical Cues From Conspecific Females On Escalation Decisions During Male-Male Interactions Of Jumping Spiders, Fiona R. Cross, Robert R. Jackson, Simon D. Pollard, Mark W. Walker
All Peer-Reviewed Publications
An important prediction from game theory is that the value of a resource influences the level to which male-male conflict escalates. An earlier experimental study showed that males of Hypoblemum albovittatum, a common salticid in New Zealand, can discern by sight alone whether a female is in the vicinity and that, having detected a female's presence, males escalate (i.e., adopt behaviour that is likely to put them at greater risk of injury). Seeing a bare moving cork, a conspecific male or a prey item also elicits escalation, but not to the level elicited by seeing a conspecific female. Here the …
The Effect Of Male Competition On Female Choice In Brandt’S Vole, Lasiopodomys Brandti, Jianjun Zhang, Dazhao Shi, Lixing Sun
The Effect Of Male Competition On Female Choice In Brandt’S Vole, Lasiopodomys Brandti, Jianjun Zhang, Dazhao Shi, Lixing Sun
All Faculty Scholarship for the College of the Sciences
The effect of male competition on female choice in the Brandt’s vole (Lasiopodomys brandti) was studied in the laboratory. Using a two-way choice test, we showed that when males did not compete, estrous females preferred and mated with the dominant males, but non-estrous females preferred subordinate males. However, when males competed, all dominant males gained the priority to mate, and the amicable behaviour between males, regardless of their dominant status, and between non-estrous females increased, compared with the behaviour between males and the estrous females. These results showed that interactions among Brandt’s voles were not only influenced by …
Female Preference For Complex/Novel Signals In A Spider, Damian O. Elias, Eileen Hebets, Ronald R. Hoy
Female Preference For Complex/Novel Signals In A Spider, Damian O. Elias, Eileen Hebets, Ronald R. Hoy
Eileen Hebets Publications
Identifying the various factors that influence complex signal evolution is a difficult task, yet it is fundamental to understanding the evolution of animal communication. Here we explore the evolution of complex courtship signaling by taking advantage of a system in which sexual selection on male courtship traits has driven the diversification of geographically isolated populations of the jumping spider Habronattus pugillis Griswold. Using 2 populations (Santa Rita [SR] and Atascosa [AT]) in which SR females show xenophilic mating preferences for foreign (AT) over local males (SR), we examine the mechanisms driving this preference. Both AT and SR males produce multimodal …
Impact Of Environmental Disturbance On The Stability And Benefits Of Individual Status Within Dominance Hierarchies, Lynne U. Sneddon, Sophie Hawkesworth, Victoria A. Braithwaite, Julia Yerbury
Impact Of Environmental Disturbance On The Stability And Benefits Of Individual Status Within Dominance Hierarchies, Lynne U. Sneddon, Sophie Hawkesworth, Victoria A. Braithwaite, Julia Yerbury
Ethology Collection
Changes in environmental conditions affect social interactions and thus may modify an individual’s competitive ability within a social group. We subjected three-spined sticklebacks, Gasterosteus aculeatus, housed in groups of four individuals, to environmental perturbations to assess the impact on dominance hierarchy stability. Hierarchy stability decreased during increased turbulence or lowered water levels (‘simulated drought’) whereas control hierarchies became more stable in a constant environment. The dominant individual either became more aggressive and remained dominant during the environmental manipulation or was usurped by a lower rank member. Only simulated drought affected rates of aggression where levels of aggression were higher after …
Spatial Heterogeneity, Predator Cognition, And The Evolution Of Color Polymorphism In Virtual Prey, Alan B. Bond, Alan Kamil
Spatial Heterogeneity, Predator Cognition, And The Evolution Of Color Polymorphism In Virtual Prey, Alan B. Bond, Alan Kamil
Papers in Behavior in Biological Sciences
Cryptically colored prey species are often polymorphic, occurring in multiple distinctive pattern variants. Visual predators promote such phenotypic variation through apostatic selection, in which they attack more abundant prey types disproportionately often. In heterogeneous environments, disruptive selection to match the coloration of disparate habitat patches could also produce polymorphism, but how apostatic and disruptive selection interact in these circumstances is unknown. Here we report the first controlled selection experiment on the evolution of prey coloration on heterogeneous backgrounds, in which blue jays (Cyanocitta cristata) searched for digital moths on mixtures of dark and light patches at three different …
Seismic Signal Production In A Wolf Spider: Parallel Versus Serial Multi-Component Signals, Damian O. Elias, Norman Lee, Eileen Hebets, Andrew Mason
Seismic Signal Production In A Wolf Spider: Parallel Versus Serial Multi-Component Signals, Damian O. Elias, Norman Lee, Eileen Hebets, Andrew Mason
Eileen Hebets Publications
Animal signals can consist of multiple parts within or across sensory modalities (multi-component signals or multimodal signals). While recent work has focused on multimodal signals, the production, processing and evolution of multi-component signals has received considerably less attention. Here, using synchronous high-speed video and laser vibrometer recordings followed by experimental manipulations of putative sound-producing structures, we explored the mechanisms of seismic signal production in the courtship display of Schizocosa stridulans Stratton. Two types of seismic courtship signals were observed: ‘rev’ and ‘idle’ signals. Revs consist of a high-frequency component produced by flexions of the male pedipalp (stridulation) simultaneous with a …
Spatial Learning In Dragonflies, Perri K. Eason, Paul Switzer
Spatial Learning In Dragonflies, Perri K. Eason, Paul Switzer
Faculty Research & Creative Activity
No abstract provided.
Spatial Learning In Dragonflies, Perri Eason, Paul Switzer
Spatial Learning In Dragonflies, Perri Eason, Paul Switzer
Faculty Research & Creative Activity
No abstract provided.
Behaviour Development: A Cephalopod Perspective, Jennifer A. Mather
Behaviour Development: A Cephalopod Perspective, Jennifer A. Mather
Interactive Behavior Collection
This paper evaluates the development of behaviour from the viewpoint of the intelligent and learningdependent cephalopod mollusks as a contrast to that of mammals. They have a short lifespan, commonly one to two years, and most are semelparous, reproducing only near the end of their lifespan. In the first two months of life, Sepia officinalis cuttlefish show drastic limitation on learning of prey choice and capture, gradually acquiring first short-term and then long-term learning over 60 days. This is paralleled by development of the vertical lobe of the brain which processes visually learned information. In the long nonreproductive adulthood, Octopus …
Predator Survival Tactics And Use Of Habitat Cover In Rana Catesbeiana., Tara E. Bergin
Predator Survival Tactics And Use Of Habitat Cover In Rana Catesbeiana., Tara E. Bergin
Undergraduate Research Symposium (UGRS)
Predator-prey relationships are an important aspect of the natural world, and, because of its relevance to survival and natural selection, is an interesting relationship to study. In amphibian larvae, level of activity and landscape use are often what determines the survival as prey. I studied the anti-predator behavior of the North American bullfrog (Rana catesbeiana) tadpoles when presented with dragonfly (Aeshna) larvae, a known predator of tadpoles. Tadpoles were acclimated to four different habitats with varying degrees of habitat cover, and were transferred to a new habitat with a degree of cover equal to one of the acclimation tanks. A …
The Breeding Ecology And Natural History Of Ambystomatid Salamanders In An Ephemeral Wetland In Mason County, West Virginia, S. Douglas Kaylor
The Breeding Ecology And Natural History Of Ambystomatid Salamanders In An Ephemeral Wetland In Mason County, West Virginia, S. Douglas Kaylor
Theses, Dissertations and Capstones
A forested ephemeral wetland in Mason County, WV, documented to contain 4 of 5 Ambystoma species found in the state, was studied to learn about population sizes, breeding cycles, and habitat use. Minnow traps were placed along three drift fences with additional traps placed throughout the study area. From February 5 to March 27, 2005, 85 captured adults were identified to species, marked by elastomer injection for mark-recapture analysis, and measured for morphometrics. Larval salamanders were identified, staged, measured, and returned. Egg clutches were mapped and counted. Mark-recapture analysis suggests the A. texanum population size is between 635 and 735 …
Social Play In Kakapo (Strigops Habroptilus) With Comparisons To Kea (Nestor Notabilis) And Kaka (Nestor Meridionalis), Judy Diamond, Daryl Eason, Clio Reid, Alan B. Bond
Social Play In Kakapo (Strigops Habroptilus) With Comparisons To Kea (Nestor Notabilis) And Kaka (Nestor Meridionalis), Judy Diamond, Daryl Eason, Clio Reid, Alan B. Bond
Papers in Behavior in Biological Sciences
The play behavior of the critically endangered kakapo (Strigops habroptilus; Aves: Psittaciformes: Psittacidae) is here compared to that of its closest relatives, the kea (Nestor notabilis) and the kaka (Nestor meridionalis). Contrasting kakapos, which are relatively solitary, with the more social Nestor parrots provides an attractive test of the relative contributions of phylogeny and sociality to the evolution of play. Overlapping cluster analysis of play sequences using a hypergeometric similarity metric indicated that kakapo play is generally less complex, lacking the intensity, duration, structure, and reciprocity of play in the Nestor parrots. Kakapos have …
An Examination Of Agonistic Interactions In The Whip Spider Phrynus Marginemaculatus (Arachnida, Amblypygi), Kasey D. Fowler-Finn, Eileen Hebets
An Examination Of Agonistic Interactions In The Whip Spider Phrynus Marginemaculatus (Arachnida, Amblypygi), Kasey D. Fowler-Finn, Eileen Hebets
Eileen Hebets Publications
Intraspecific interactions in adult whip spiders (Phrynus marginemaculatus) were investigated in a laboratory setting to quantify agonistic interactions and to determine predictors of contest outcome. Males were initially paired with size-symmetric or size-asymmetric opponents to assess the effect of size symmetry on contests. Three weeks later, the same males were paired with either the same opponent, or a different opponent to determine whether or not individuals remember earlier encounters. Finally, we quantified aspects of female-female contests. Agonistic encounters between males are characterized by varying degrees of pedipalpal opening, elevation displays, and rapid flicking (~ 29 Hz) of the …
Regional Seismic Song Differences In Sky Island Populations Of The Jumping Spider Harbonattus Pugillis Griswold (Araneae, Salticidae), Damian O. Elias, Eileen Hebets, Ronald R. Hoy, Wayne P. Maddison, Andrew C. Mason
Regional Seismic Song Differences In Sky Island Populations Of The Jumping Spider Harbonattus Pugillis Griswold (Araneae, Salticidae), Damian O. Elias, Eileen Hebets, Ronald R. Hoy, Wayne P. Maddison, Andrew C. Mason
Eileen Hebets Publications
Jumping spiders have long been used as model organisms to study visual communication. However, recent studies documenting the presence of intricate multicomponent seismic songs during courtship displays suggest an important role of seismic communication as well. Given the relatively recent focus on seismic communication, the extent to which seismic songs vary among jumping spider species or even among populations remains poorly understood. Here, we use the extensively studied Habronattus pugillis Griswold 1987 complex to explore putative seismic song diversity among males from isolated populations. H. pugillis populations have been studied extensively because of the tremendous diversification of male visual secondary …
Differential Habituation Of Male Betta Splendens To Qualitatively Different Stimuli, Lauren Baard
Differential Habituation Of Male Betta Splendens To Qualitatively Different Stimuli, Lauren Baard
Undergraduate Research Symposium (UGRS)
Habituation is a learning mechanism that functions to decrease the amount of energy and attention focused on a certain stimuli. Male Siamese Fighting Fish, Betta splendens, are territorial animals that defend their territories using a number of aggressive displays. Male Bettas have previously shown the ability to habituate to the presence of a conspecific male when visually exposed to each other. Due to the costly nature of many of the male Betta’s displays, I hypothesized that male Bettas should differentially habituate to qualitatively different stimuli. I presented each of three groups of male Betta splendens with a different stimulus, each …
Strategies Of Sex And Survival In Hamadryas Baboons: Through A Female Lens, Larissa Swedell
Strategies Of Sex And Survival In Hamadryas Baboons: Through A Female Lens, Larissa Swedell
Publications and Research
No abstract provided.
Leptodactylus Fragilis, Mirriiam Muedeking Heyer, W. Ronald Heyer, Rafael O. De Sá
Leptodactylus Fragilis, Mirriiam Muedeking Heyer, W. Ronald Heyer, Rafael O. De Sá
Biology Faculty Publications
Leptodactylus fragilis (Brocchi) White-lipped thin-toed frogs are characteristically defined according to their habitation and age. There is a diagnosis of different species group within Leptodactylus. It is furthermore described from different perspectives and discoveries such as its eggs and karyotype. The distribution of the frog is considered to be prominent occurring form Southernmost Teaxs throughout Mexico and Middle America expanding to Venezuela. The fossil fuel records and literature on Leptodactylus are slighly viewed before studying its nomenclatural history and rarity.
Perspectives On Reproduction And Life History In Baboons, Larissa Swedell, Steven R. Leigh
Perspectives On Reproduction And Life History In Baboons, Larissa Swedell, Steven R. Leigh
Publications and Research
No abstract provided.
Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech
Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Urine-marking and ground-scratching were observed in an Arctic Wolf (Canis lupus) pack on Ellesmere Island, Nunavut, Canada, during 16 summers between 1986 and 2005. All previously known urination postures and ground-scratching by breeding males and females were seen, and incidence of marking and scratching was greatest when non-pack wolves were present. Observations of urine-marking of food remains supported the conclusion from a captive Wolf study that such marking signals lack of edible food.
Interference Effects In The Memory For Serially Presented Locations In Clark’S Nutcrackers, Nucifraga Columbiana, Jody L. Lewis, Alan C. Kamil
Interference Effects In The Memory For Serially Presented Locations In Clark’S Nutcrackers, Nucifraga Columbiana, Jody L. Lewis, Alan C. Kamil
Papers in Behavior in Biological Sciences
The authors tested the spatial memory of serially presented locations in Clark’s nutcrackers (Nucifraga columbiana). Birds were serially presented with locations in an open room. The authors buried a seed in a sand-filled cup at each location and then tested nutcrackers for their memory for each location in the list by using the cluster method. For each item in the list, the authors opened a cluster of 6 holes. Accuracy was measured by how many tries were required for the bird to find the correct location within each cluster. In Experiments 1 and 2, the authors presented 2 …
Selective Attention, Priming, And Foraging Behavior, Alan Kamil, Alan B. Bond
Selective Attention, Priming, And Foraging Behavior, Alan Kamil, Alan B. Bond
Papers in Behavior in Biological Sciences
Animals selectively filter and transform their sensory input, increasing the accuracy with which some stimuli are detected and effectively ignoring others. This filtering process, collectively referred to as “selective attention,” takes place at a variety of different levels in the nervous system. It was described in considerable detail by William James over a century ago (James, 1890/1950) and has been a principal focus of research in cognitive psychology for nearly 50 years (Parasuraman & Davies, 1984; Pashler, 1998; Richards, 1998). Investigations of selective attention have also been central to the study of animal cognition, where the process of attention has …
Anatomy And Physiology Of Giant Neurons In The Antenniform Leg Of The Amblypygid Phrynus Marginemaculatus, A. J. Spence, Eileen Hebets
Anatomy And Physiology Of Giant Neurons In The Antenniform Leg Of The Amblypygid Phrynus Marginemaculatus, A. J. Spence, Eileen Hebets
Eileen Hebets Publications
Amblypygids have modified front legs that are not used for locomotion, but rather to probe the environment in the manner of antennae. These elongate, motile sense organs are referred to as antenniform legs. We have found remarkable replication in structure and function of giant neurons in the antenniform leg of the amblypygid Phrynus marginemaculatus C.L. Koch 1841 when compared with other amblypygids. These neurons have such large diameter axons (several μm) that their action potentials can be recorded outside the cuticle. Their cell bodies are found in the periphery, in the distal-most segments of the antenniform leg, centimeters away from …