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Social and Behavioral Sciences Commons™
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Articles 1 - 30 of 33
Full-Text Articles in Social and Behavioral Sciences
Properties Of Corneal Receptors In A Teleost Fish, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan
Properties Of Corneal Receptors In A Teleost Fish, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan
Veterinary Science and Medicine Collection
Corneal receptors have not previously been identified in lower vertebrates. The present study describes the properties of trigeminal ganglion corneal receptors in a teleost fish, the rainbow trout (Oncoryhnchus mykiss). Out of 27 receptors, 7 were polymodal nociceptors, 6 were mechanothermal nociceptors, 2 were mechanochemical receptors and the largest group, 12, were only responsive to mechanical stimulation. No cold responsive receptors were found on the trout cornea. Mechanical and thermal thresholds were lower and receptive field diameters smaller than those of cutaneous trigeminal receptors in the trout, demonstrating greater sensitivity in the cornea. The lack of cold sensitive neurons may …
Counting The Contributions: Benchmarking For Your Organization And Your State, Andrew N. Rowan
Counting The Contributions: Benchmarking For Your Organization And Your State, Andrew N. Rowan
Shelter Management and Adoption Procedures Collection
An analysis of per-capita donations can help shelters assess their effectiveness in raising funds and awareness in their communities.
Putting Humans First?, David Graham, Nathan Nobis
Putting Humans First?, David Graham, Nathan Nobis
Attitudes Towards Animals Collection
In Putting Humans First: Why We Are Nature's Favorite, Tibor Machan argues against moral perspectives that require taking animals' interests seriously. He attempts to defend the status quo regarding routine, harmful uses of animals for food, fashion and experimentation. Graham and Nobis argue that Machan's work fails to resist pro-animal moral conclusions that are supported by a wide range of contemporary ethical arguments.
Identifying And Preventing Pain In Animals, Daniel M. Weary, Lee Niel, Frances C. Flower, David Fraser
Identifying And Preventing Pain In Animals, Daniel M. Weary, Lee Niel, Frances C. Flower, David Fraser
Assessment of Animal Welfare Collection
Animals are routinely subjected to painful procedures, such as tail docking for puppies, castration for piglets, dehorning for dairy calves, and surgery for laboratory rats. Disease and injury, such as tumours in mice and sole ulcers on the feet of dairy cows, may also cause pain. In this paper we describe some of the ways in which the pain that animals experience can be recognized and quantified. We also describe ways in which pain can be avoided or reduced, by reconsidering how procedures are performed and whether they are actually required. Ultimately, reducing the pain that animals experience will require …
The Changing Concept Of Animal Sentience, Ian J. H. Duncan
The Changing Concept Of Animal Sentience, Ian J. H. Duncan
Sentience Collection
A brief history of the concept of sentience is given. It is pointed out that the idea of sentience, at least in the mammals and birds, was accepted by lay people by the time of the Renaissance and before it was acknowledged by philosophers. It was not until the Enlightenment of the 18th century that philosophers started to accept the notion that animals have feelings. Towards the end of the 19th century, scientists and philosophers had developed a fairly sophisticated concept of sentience. Little consideration was given to sentience by scientists through much of the 20th century due to the …
Mother-Young Recognition In An Ungulate Hider Species: A Unidirectional Proce, Marco V.G. Torriani, Elisabetta Vannoni, Alan G. Mcelligott
Mother-Young Recognition In An Ungulate Hider Species: A Unidirectional Proce, Marco V.G. Torriani, Elisabetta Vannoni, Alan G. Mcelligott
Veterinary Science and Medicine Collection
Parent‐offspring recognition is usually crucial for survival of young. In mammals, olfaction often only permits identification at short range, and vocalizations are important at longer distances. Following and hiding antipredator strategies found in newborn mammals may also affect parental recognition mechanisms. We investigated mother‐offspring recognition in fallow deer, an ungulate hider species. We analyzed the structure of adult female and fawn contact calls to determine whether they are individually distinctive and tested for mother‐offspring recognition. Only females (and not fawns) have individualized vocalizations, with the fundamental frequency as the most distinctive parameter. Playback experiments showed that fawns can distinguish the …
Report Of The Working Group On Animal Distress In The Laboratory, Marilyn Brown, Larry Carbone, Kathleen Conlee, Marian Dawkins, Ian J. Duncan, David Fraser, Gilly Griffin, Victoria A. Hampshire, Lesley A. Lambert, Joy A. Mench, David Morton, Jon Richmond, Bernard E. Rollin, Andrew N. Rowan, Martin L. Stephens, Hanno Würbel
Report Of The Working Group On Animal Distress In The Laboratory, Marilyn Brown, Larry Carbone, Kathleen Conlee, Marian Dawkins, Ian J. Duncan, David Fraser, Gilly Griffin, Victoria A. Hampshire, Lesley A. Lambert, Joy A. Mench, David Morton, Jon Richmond, Bernard E. Rollin, Andrew N. Rowan, Martin L. Stephens, Hanno Würbel
Laboratory Experiments Collection
Finding ways to minimize pain and distress in research animals is a continuing goal in the laboratory animal research field. Pain and distress, however, are not synonymous, and often measures that alleviate one do not affect the other. Here, the authors provide a summary of a meeting held in February 2004 that focused on distress in laboratory animals. They discuss the difficulties associated with defining ‘distress,’ propose methods to aid in recognizing and alleviating distressful conditions, and provide recommendations for animal research conduct and oversight that would minimize distress experienced by laboratory animals.
Ordinality And Inferential Abilities Of A Grey Parrot (Psittacus Erithacus), Irene M. Pepperberg
Ordinality And Inferential Abilities Of A Grey Parrot (Psittacus Erithacus), Irene M. Pepperberg
Sentience Collection
A grey parrot (Psittacus erithacus), able to label the color of the bigger or smaller object in a pair (I. M. Pepperberg & M. V. Brezinsky, 1991), to vocally quantify ≤6 item sets (including heterogeneous subsets; I. M. Pepperberg, 1994), and separately trained to identify Arabic numerals 1–6 with the same vocal English labels but not to associate Arabic numbers with their relevant physical quantities, was shown pairs of Arabic numbers or an Arabic numeral and a set of objects and was asked for the color of the bigger or smaller one. The parrot’s success showed he (a) understood number …
The Ethics Of Referral, Bernard Rollin
The Ethics Of Referral, Bernard Rollin
Professional Veterinary Ethics Collection
The rapid growth of veterinary specialty practices has created a number of vexatious ethical issues relevant to veterinary medicine. The preeminent question pertains to “the duty to refer.” Do primary care practitioners have such a moral duty? If so, when does this duty arise? Does it pertain in all cases where specialized knowledge is relevant to a disease?
This raises the fundamental question of “Veterinary Ethics” — namely, does the veterinarian ideally have primary obligation to the client/owner or the animal? (1) There are 2 possible ideal types that a veterinarian can aim for — the Garage Mechanic Model or …
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 …
Using Self-Organizing Maps To Recognize Acoustic Units Associated With Information Content In Animal Vocalizations, John Placer, C. N. Slobodchikoff, Jason Burns, Jeffrey Placer, Ryan Middleton
Using Self-Organizing Maps To Recognize Acoustic Units Associated With Information Content In Animal Vocalizations, John Placer, C. N. Slobodchikoff, Jason Burns, Jeffrey Placer, Ryan Middleton
Veterinary Science and Medicine Collection
Kohonen self-organizing neural networks, also called self-organizing maps (SOMs), have been used successfully to recognize human phonemes and in this way to aid in human speech recognition. This paper describes how SOMS also can be used to associate specific information content with animal vocalizations. A SOM was used to identify acoustic units in Gunnison’s prairie dog alarm calls that were vocalized in the presence of three different predator species. Some of these acoustic units and their combinations were found exclusively in the alarm calls associated with a particular predator species and were used to associate predator species information with individual …
Acoustic Structures In The Alarm Calls Of Gunnison’S Prairie Dogs, C. N. Slobodchikoff, J. Placer
Acoustic Structures In The Alarm Calls Of Gunnison’S Prairie Dogs, C. N. Slobodchikoff, J. Placer
Veterinary Science and Medicine Collection
Acoustic structures of sound in Gunnison’s prairie dog alarm calls are described, showing how these acoustic structures may encode information about three different predator species (red-tailed hawk—Buteo jamaicensis; domestic dog—Canis familaris; and coyote—Canis latrans). By dividing each alarm call into 25 equal-sized partitions and using resonant frequencies within each partition, commonly occurring acoustic structures were identified as components of alarm calls for the three predators. Although most of the acoustic structures appeared in alarm calls elicited by all three predator species, the frequency of occurrence of these acoustic structures varied among the alarm calls for the different predators, suggesting that …
Does Diving Limit Brain Size In Cetaceans?, Lori Marino, Daniel Sol, Kristen Toren, Louis Lefebvre
Does Diving Limit Brain Size In Cetaceans?, Lori Marino, Daniel Sol, Kristen Toren, Louis Lefebvre
Veterinary Science and Medicine Collection
We test the longstanding hypothesis, known as the dive constraint hypothesis, that the oxygenation demands of diving pose a constraint on aquatic mammal brain size.Using a sample of 23 cetacean species we examine the relationship among six different measures of relative brain size, body size, and maximum diving duration. Unlike previous tests we include body size as a covariate and perform independent contrast analyses to control for phylogeny. We show that diving does not limit brain size in cetaceans and therefore provide no support for the dive constraint hypothesis. Instead, body size is the main predictor of maximum diving duration …
Animal Carcinogenicity Studies: Implications For The Reach System, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: Implications For The Reach System, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Experimentation Collection
The 2001 European Commission proposal for the Registration, Evaluation and Authorisation of Chemicals (REACH) aims to improve public and environmental health by assessing the toxicity of, and restricting exposure to, potentially toxic chemicals. The greatest benefits are expected to accrue from decreased cancer incidences. Hence the accurate identification of chemical carcinogens must be a top priority for the REACH system. Due to a paucity of human clinical data, the identification of potential human carcinogens has conventionally relied on animal tests. However, our survey of the US Environmental Protection Agency’s (EPA’s) toxic chemicals database revealed that, for a majority of the …
Animal Carcinogenicity Studies: 1. Poor Human Predictivity, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: 1. Poor Human Predictivity, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Experimentation Collection
The regulation of human exposure to potentially carcinogenic chemicals constitutes society’s most important use of animal carcinogenicity data. Environmental contaminants of greatest concern within the USA are listed in the Environmental Protection Agency’s (EPA’s) Integrated Risk Information System (IRIS) chemicals database. However, of the 160 IRIS chemicals lacking even limited human exposure data but possessing animal data that had received a human carcinogenicity assessment by 1 January 2004, we found that in most cases (58.1%; 93/160), the EPA considered animal carcinogenicity data inadequate to support a classification of probable human carcinogen or non-carcinogen. For the 128 chemicals with human or …
Grey Parrot (Psittacus Erithacus) Numerical Abilities: Addition And Further Experiments On A Zero-Like Concept, Irene M. Pepperberg
Grey Parrot (Psittacus Erithacus) Numerical Abilities: Addition And Further Experiments On A Zero-Like Concept, Irene M. Pepperberg
Sentience Collection
A Grey parrot (Psittacus erithacus), able to quantify 6 or fewer item sets (including heterogeneous subsets) by using English labels (I. M. Pepperberg, 1994), was tested on addition of quantities involving 0–6. He was, without explicit training, asked, “How many total X?” for 2 sequentially presented collections (e.g., of variously sized jelly beans or nuts) and required to answer with a vocal English number label. His accuracy suggested (a) that his addition abilities are comparable to those of nonhuman primates and young children, (b) some limits as to his correlation of “none” and the concept of zero, and (c) a …
Animal Carcinogenicity Studies: 2. Obstacles To Extrapolation Of Data To Humans, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: 2. Obstacles To Extrapolation Of Data To Humans, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Experimentation Collection
Due to limited human exposure data, risk classification and the consequent regulation of exposure to potential carcinogens has conventionally relied mainly upon animal tests. However, several investigations have revealed animal carcinogenicity data to be lacking in human predictivity. To investigate the reasons for this, we surveyed 160 chemicals possessing animal but not human exposure data within the US Environmental Protection Agency chemicals database, but which had received human carcinogenicity assessments by 1 January 2004. We discovered the use of a wide variety of species, with rodents predominating, and of a wide variety of routes of administration, and that there were …
Animal Carcinogenicity Studies: 3. Alternatives To The Bioassay, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: 3. Alternatives To The Bioassay, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Experimentation Collection
Conventional animal carcinogenicity tests take around three years to design, conduct and interpret. Consequently, only a tiny fraction of the thousands of industrial chemicals currently in use have been tested for carcinogenicity. Despite the costs of hundreds of millions of dollars and millions of skilled personnel hours, as well as millions of animal lives, several investigations have revealed that animal carcinogenicity data lack human specificity (i.e. the ability to identify human non-carcinogens), which severely limits the human predictivity of the bioassay. This is due to the scientific inadequacies of many carcinogenicity bioassays, and numerous serious biological obstacles, which render profoundly …
“Nuisance” Wildlife Control Trapping: Another Perspective, Brad Gates, John Hadidian, Laura Simon
“Nuisance” Wildlife Control Trapping: Another Perspective, Brad Gates, John Hadidian, Laura Simon
Wildlife Population Management Collection
Urban wildlife control is a rapidly growing profession in which many practitioners apparently still come from a recreational or commercial trapping background. Perhaps for that reason, much of the “control” in resolving human-wildlife conflicts in cities and suburbs seems to revolve around the use of lethal traps to eliminate “problem” animals. Although some states allow relocation and most apparently allow for nuisance animals to be released on site, the extent to which these practices occur is little known. Further, the biological impacts of continual trapping cycles on urban wildlife populations remain little known as well. An alternative approach to trapping …
Differential Effects Of Sodium And Magnesium Sulfate On Water Consumption By Beef Cattle, A. S. Grout, D. M. Veira, D. M. Weary, M. A. G. Von Keyserlingk, D. Fraser
Differential Effects Of Sodium And Magnesium Sulfate On Water Consumption By Beef Cattle, A. S. Grout, D. M. Veira, D. M. Weary, M. A. G. Von Keyserlingk, D. Fraser
Biochemistry Collection
The existing guidelines for maximum sulfate (SO4) in cattle drinking water are based on Na2SO4, although many water sources contain greater concentrations of MgSO4. Two experiments compared the effect of different SO4 salts on water consumption and fecal DM of cattle. In Exp. 1, 8 yearling heifers (initial BW = 345 ± 8 kg; mean ± SD) were watered twice daily with tapwater or water containing Na2SO4 or MgSO4 at target levels of 1,500, 3,000, or 4,500 mg of SO4/L for 2-d treatment periods separated by 2 …
Forty-Two Thousand And One Dalmatians: Fads, Social Contagion, And Dog Breed Popularity, Harold A. Herzog
Forty-Two Thousand And One Dalmatians: Fads, Social Contagion, And Dog Breed Popularity, Harold A. Herzog
Pets Collection
Like other cultural variants, tastes in companion animals (pets) can shift rapidly. An analysis of American Kennel Club puppy registrations from 1946 through 2003 (N = 48,598,233 puppy registrations) identified rapid but transient large-scale increases in the popularity of specific dog breeds. Nine breeds of dogs showed particularly pronounced booms and busts in popularity. On average, the increase (boom) phase in these breeds lasted 14 years, during which time annual new registrations increased 3,200%. Equally steep decreases in registrations for the breeds immediately followed these jumps in popularity. The existence of extreme fluctuations in preferences for dog breeds has implications …
Exploration And Habituation In Intact Free Moving Octopus Vulgaris, Jennifer Mather
Exploration And Habituation In Intact Free Moving Octopus Vulgaris, Jennifer Mather
Sentience Collection
Despite the huge numbers of studies published on the learning of cephalopod mollusks, studies on non-associative learning are scarce. We tested non-associative learning (habituation) and exploration in Octopus vulgaris in two different studies using a prey-shaped object (Study A) and inanimate objects and food objects (Study B). Study A consisted of the repeated presentation of a prey-like stimulus, which 23 subjects could only explore visually. In study B, 14 octopuses were presented two Lego blocks (one black and white with a smooth surface, one a blue "snowflake" with a rough surface) and two food items, one preferred (clams) and one …
The Class B Dealer: Down And Out?, Bernard Unti
The Class B Dealer: Down And Out?, Bernard Unti
Laboratory Experiments Collection
The supply of dogs and cats to laboratories by Class B animal dealers has been a contentious matter for decades. The subject engenders heated debate whenever it surfaces, most recently in September 2005 when Senator Daniel Akaka (D-HI) proposed an amendment to the FY 2006 agriculture funding bill to withhold federal monies to research institutions that purchase animals from Class B dealers.
The Evolving Animal Rights And Welfare Debate In China: Political And Social Impact Analysis, Peter J. Li
The Evolving Animal Rights And Welfare Debate In China: Political And Social Impact Analysis, Peter J. Li
Animal Welfare Collection
In the past few years, a new debate has erupted in mainland China. This debate focuses on animal rights, animal welfare and animal treatment in general. In the not too distant past, such subjects were conveniently rejected as unworthy of serious academic attention. China’s rapid economic changes, increasing societal activism on environmental issues, continuous influx of foreign ideas and a rising societal awareness of the rights for the disadvantaged, including the nonhuman animals, are impacting the agendas of public discussions. Directly triggering this public debate were several highly publicized animal cruelty incidents involving, for example, five bears at Beijing Zoo …
Ethics And Welfare: Pain Perception In Fish, L. U. Sneddon
Ethics And Welfare: Pain Perception In Fish, L. U. Sneddon
Aquaculture Collection
Fish welfare is currently a controversial subject with many scientific studies now demonstrating the possibility for fish to experience negative events such as pain, fear and stress. This has important implications in the treatment of fish during commercial and experimental procedures in terms of ethics and welfare. In this review, the evidence for pain perception in fish is considered and the repercussions for the use of fish as a research model as well as in aquaculture and largescale fisheries. These issues are discussed briefly from a welfare and ethical perspective.
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 …
The Effect Of Housing And Handling Practices On The Welfare, Behaviour And Selection Of Domestic Cats (Felis Sylvestris Catus) By Adopters In An Animal Shelter, N. Gourkow, D. Fraser
The Effect Of Housing And Handling Practices On The Welfare, Behaviour And Selection Of Domestic Cats (Felis Sylvestris Catus) By Adopters In An Animal Shelter, N. Gourkow, D. Fraser
Shelter Management and Adoption Procedures Collection
As adult cats can often be difficult to re-home, they may spend long periods in rescue shelters where barren housing and inconsistent handling can reduce their welfare. In this study, 165 adult cats in an animal shelter in Vancouver, Canada, were assigned to four treatments. The Basic Single treatment reflected typical conditions in that particular shelter, with cats handled in an inconsistent manner by various staff and housed singly in relatively barren cages. Three alternative treatments involved more consistent, positive handling by only the experimenter and research assistants, plus three housing conditions: Enriched Single (individual cages with opportunities to perch …
Compassion Fatigue In The Animal-Care Community, Charles R. Figley, Robert G. Roop
Compassion Fatigue In The Animal-Care Community, Charles R. Figley, Robert G. Roop
eBooks
Compassion fatigue---the exhaustion caused by the demands of being empathic and helpful to those who are suffering---is found at every level among the underserved, underappreciated, and uncomplaining caregivers in animal-related fields. In this ground-breaking book, two prominent leaders in the field examination the causes of compassion fatigue and offer help to those who suffer from it.
Compassion Fatigue in the Animal-Care Community is a must-read for animal shelter employees, volunteers, and board members veterinarians, and veterinary practice and veterinary hospital staffs wildlife rehabilitators breed-rescue or equine-rescue volunteers.
Early Ontogenetic Diet In Gray Wolves, Canis Lupus, Of Coastal British Columbia, Heather M. Bryan, Chris T. Darimont, Thomas E. Reimchen, Paul C. Paquet
Early Ontogenetic Diet In Gray Wolves, Canis Lupus, Of Coastal British Columbia, Heather M. Bryan, Chris T. Darimont, Thomas E. Reimchen, Paul C. Paquet
Biogeography and Ecological Opportunity Collection
Within populations, different age classes often consume dissimilar resources, and provisioning of juveniles by adults is one mechanism by which this can occur. Although the diet of Gray Wolves (Canis lupus) has been studied extensively, the diet of pups is largely unknown. We examined faeces deposited by altricial pups and adult providers during the first two months following birth at two den sites over two years on the central coast of British Columbia, Canada. Pups and adult wolves consumed similar species, and Black-tailed Deer (Odocoileus hemionus) constituted most of the diet for both age groups. Pup and adult diet, however, …
Animals In Disasters: Issues For Animal Liberation Activism And Policy, Leslie Irvine
Animals In Disasters: Issues For Animal Liberation Activism And Policy, Leslie Irvine
Animal Liberation Movement Collection
Non-human animals face significant risks in meteorological, geological, technological, and terrorist disasters. A large network of rescue organizations and policies has developed in response to the needs of animals. This paper examines the animal response system through four case studies, revealing issues and conflicts that can inform animal rights policy and activism. The first case examines the response to Hurricane Katrina, pointing out that emergency response plans reflect speciesist assumptions that give human lives priority, in all circumstances. The media highlighted accusations of racism during the Katrina response, but activists need to educate the public about the connections between these …