Guy Beauchamp
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View article: Annual Temperature Variation, Not Number of Predators, Predicts Variation in Foraging Group Size Among Pigeons Worldwide
Annual Temperature Variation, Not Number of Predators, Predicts Variation in Foraging Group Size Among Pigeons Worldwide Open
Many life history traits show predictable patterns at broad biogeographical scales, yet much less is known about how behavioural traits vary across such gradients. In this study, I investigated global variation in foraging group size withi…
View article: Chorus Organization in a Neotropical Forest Cicada
Chorus Organization in a Neotropical Forest Cicada Open
In many species of animals, males aggregate in particular locations and produce calls to attract searching females for reproduction. One striking feature of such choruses is synchronization. On a scale of hours, choruses are often concentr…
View article: Gazing Strategies among Sentinels of a Cooperative Breeder Are Repeatable but Unrelated to Survival
Gazing Strategies among Sentinels of a Cooperative Breeder Are Repeatable but Unrelated to Survival Open
Vigilance is a common behavioural adaptation to increase the chances of detecting predators before it is too late to escape. Behavioural traits are often repeatable among individuals over the long term, suggesting differences in personalit…
View article: Vascularity evaluation of the equine tarsocrural and proximal intertarsal joint septum, and comparative analysis of two arthroscopic transection techniques
Vascularity evaluation of the equine tarsocrural and proximal intertarsal joint septum, and comparative analysis of two arthroscopic transection techniques Open
Objective To evaluate vascularity of the synovial membrane covered septum (SMS) separating the tarsocrural (TC) and proximal intertarsal (PIT) joints (Part 1) and compare two methods of transection, electrosurgical or Ferris Smith rongeur …
View article: Radiographic analysis in Thoroughbreds reveals morphological changes in healthy maturing stifle joints and possible association between subchondral lesions and femoral condyle width
Radiographic analysis in Thoroughbreds reveals morphological changes in healthy maturing stifle joints and possible association between subchondral lesions and femoral condyle width Open
OBJECTIVE Assess femorotibial features in foals with and without medial femoral condyle (MFC) subchondral radiolucencies (SR+ and SR–). METHODS 3 independent, sequential radiographic studies were performed. Study 1 retrospectively measured…
View article: <scp>Micro‐computed tomography</scp> reveals high‐density mineralised protrusions and microstructural lesions in equine stifle joint articular cartilage
<span>Micro‐computed tomography</span> reveals high‐density mineralised protrusions and microstructural lesions in equine stifle joint articular cartilage Open
Background Stifle osteoarthritis (OA) lesions are most common in the medial femorotibial (MFT) compartment. Their characterisation and mapping will inform equine veterinarians towards an accurate diagnosis of OA. Objectives Investigate and…
View article: Is wing morphology across birds associated with life history and sociality?
Is wing morphology across birds associated with life history and sociality? Open
Wings in birds vary tremendously in size and shape across species. Ecological needs are thought to shape variation across species in wing morphology over evolutionary times. For instance, demands for energetic efficiency in species that fl…
View article: Effects of soaked hay on lung function and airway inflammation in horses with severe asthma
Effects of soaked hay on lung function and airway inflammation in horses with severe asthma Open
Background Reducing inhaled dust particles improves lung function in horses with severe asthma. Soaked hay is commonly used by owners, but its efficacy in improving lung function and inflammation has not been documented. Objectives To meas…
View article: Life History and Sociality Predict Variation in Eye Size across Birds
Life History and Sociality Predict Variation in Eye Size across Birds Open
Over evolutionary times, the eye has acquired several adaptations to improve feeding efficiency and reduce predation pressure. Eye size, in particular, represents a target for selection, as it affects light capture and image resolution. Pr…
View article: Comparison of sedation with dexmedetomidine/atipamezole administered subcutaneously at <scp>GV20</scp> acupuncture point with usual routes of administration in dogs presented for orthopaedic radiographs
Comparison of sedation with dexmedetomidine/atipamezole administered subcutaneously at <span>GV20</span> acupuncture point with usual routes of administration in dogs presented for orthopaedic radiographs Open
Objectives To evaluate the efficacy of subcutaneous administration of dexmedetomidine/atipamezole at the Governing Vessel 20 (GV20) acupuncture point compared with other administration routes (intramuscular and intravenous) in dogs present…
View article: Iatrogenic adrenal atrophy following oral corticotherapy is not reliably identified ultrasonographically in cats.
Iatrogenic adrenal atrophy following oral corticotherapy is not reliably identified ultrasonographically in cats. Open
Feline iatrogenic adrenal atrophy may be difficult to establish with ultrasonography, as only cats receiving anti-inflammatory corticosteroid doses for > 1 mo had a modest (< 1 mm) decrease in adrenal height.
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View article: Multiple Sentinels in a Cooperative Breeder Synchronize Rather Than Coordinate Gazing
Multiple Sentinels in a Cooperative Breeder Synchronize Rather Than Coordinate Gazing Open
Sentinels can detect predators and rivals early by monitoring their surroundings from vantage points. Multiple sentinels in a group may reduce the perceived predation risk by diluting the risk and increasing collective detection, especiall…
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View article: Susceptibility to Predation Varies with Body Mass, Foraging Niche, and Anti-Predator Responses among Bird Species
Susceptibility to Predation Varies with Body Mass, Foraging Niche, and Anti-Predator Responses among Bird Species Open
Predation is a major source of mortality for many avian species. Species that face more predators, and those with less effective anti-predator responses, are presumably more likely to die from predation over time. Predation rate, as a meas…
View article: Visual Monitoring Strategies of Sentinels in a Cooperative Breeder
Visual Monitoring Strategies of Sentinels in a Cooperative Breeder Open
Vigilance is important for early detection of threats. Previous studies have focused on the allocation of time to vigilance but neglected how animals monitor their surroundings during vigilance. Where animals look and how long each look la…
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US$1,501 (Rest of World), €976 (Europe), £769 (UK)
View article: Reliability of Electric Pulp Test, Cold Pulp Test or Tooth Transillumination to Assess Pulpal Health in Permanent Dog Teeth
Reliability of Electric Pulp Test, Cold Pulp Test or Tooth Transillumination to Assess Pulpal Health in Permanent Dog Teeth Open
The aim of this study was to evaluate the reliability of electric pulp test (EPT), cold pulp test (CPT) and tooth transillumination (TTI) in the assessment of pulpal health in dog teeth. Forty-five client-owned dogs requiring tooth extract…
View article: Effects of the number and the position of transfixation pins in acrylic connecting bars.
Effects of the number and the position of transfixation pins in acrylic connecting bars. Open
Acrylic columns are commonly used in external skeletal fixators, especially for fracture management or trans-articular fixations. To the authors' knowledge, there are no studies demonstrating if the number or position of the transfixation …
View article: Association between hyperlipidemia and calcium oxalate lower urinary tract uroliths in dogs
Association between hyperlipidemia and calcium oxalate lower urinary tract uroliths in dogs Open
Background Metabolic syndrome is associated with formation of calcium oxalate (CaOx) uroliths in humans. Objectives To investigate the association between obesity and hyperlipidemia with CaOx lower urinary tract uroliths in client‐owned do…
View article: Putative antigenic proteins identified by comparative and subtractive reverse vaccinology in necrotic enteritis-causing Clostridium perfringens isolated from broiler chickens
Putative antigenic proteins identified by comparative and subtractive reverse vaccinology in necrotic enteritis-causing Clostridium perfringens isolated from broiler chickens Open
View article: Asthmatic Bronchial Matrices Determine the Gene Expression and Behavior of Smooth Muscle Cells in a 3D Culture Model
Asthmatic Bronchial Matrices Determine the Gene Expression and Behavior of Smooth Muscle Cells in a 3D Culture Model Open
Asthma is associated with increased deposition and altered phenotype of airway smooth muscle (ASM) cells. However, little is known about the processes responsible for these changes. It has been suggested that alterations of the extracellul…
View article: Subcutaneous ureteral bypass device placement in 81 cats with benign ureteral obstruction (2013‐2018)
Subcutaneous ureteral bypass device placement in 81 cats with benign ureteral obstruction (2013‐2018) Open
Background Benign ureteral obstructions (BUOs) present a therapeutic challenge in cats. Hypothesis/Objectives The purpose of this study was to determine the outcome and complications associated with placement of subcutaneous ureteral bypas…
View article: Management of veterinary anaesthesia and analgesia in small animals: A survey of English-speaking practitioners in Canada
Management of veterinary anaesthesia and analgesia in small animals: A survey of English-speaking practitioners in Canada Open
Objective To describe how small animal anaesthesia and analgesia is performed in English-speaking Canada, document any variation among practices especially in relation to practice type and veterinarian’s experience and compare results to p…
View article: Author response for "Osteoclast density is not increased in bone adjacent to radiolucencies (cysts) in juvenile equine medial femoral condyles"
Author response for "Osteoclast density is not increased in bone adjacent to radiolucencies (cysts) in juvenile equine medial femoral condyles" Open
View article: Suicide in French Polynesia: a retrospective analysis based on medicolegal documents and interview with family
Suicide in French Polynesia: a retrospective analysis based on medicolegal documents and interview with family Open
Objective To analyse the epidemiological data on suicide in French Polynesia (FP). Methods Data on suicides were collected from the Public Health Direction, Judicial Police Investigations Court of Justice records, the Centre d’Opérations e…
View article: Adversity Over the Life Course: A Comparison Between Women and Men Who Died by Suicide
Adversity Over the Life Course: A Comparison Between Women and Men Who Died by Suicide Open
Purpose: This study sets out to compare the presence of life events across different domains throughout the life course which may contribute to the burden of adversity experienced differently among men and women who died by suicide. Method…
View article: Effects of Butorphanol With Alfaxalone or Dexmedetomidine on Feline Splenic Size and Appearance on Ultrasound and Computed Tomography
Effects of Butorphanol With Alfaxalone or Dexmedetomidine on Feline Splenic Size and Appearance on Ultrasound and Computed Tomography Open
The purpose of the study was to determine the effects of intramuscular butorphanol with dexmedetomidine or alfaxalone on feline splenic size, echogenicity, and attenuation using ultrasound and computed tomography (CT). Ten healthy research…
View article: Behavioral evaluation of 65 aggressive dogs following a reported bite event.
Behavioral evaluation of 65 aggressive dogs following a reported bite event. Open
Peer-reviewed scientific publications on the topic of dog bites are numerous. Montreal was one of the first municipalities in the province of Quebec to require mandatory assessment of aggressive dogs by veterinarians. In 2019, dogs reporte…
View article: <i>Nicoletella semolina</i>in the airways of healthy horses and horses with severe asthma
<i>Nicoletella semolina</i>in the airways of healthy horses and horses with severe asthma Open
Background Nicoletella semolina was identified in the airways of horses and its low prevalence could be because of its difficult differentiation from other Pasteurellaceae . Objectives To develop a molecular method for the identification o…