Di Evans

Ms. Di Evans


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 July 2020 in Animals
Verified
Journal Article
Open access
PDF file
LMLynette McLeod
Lynette McLeod
DEDi Evans
Di Evans
BJBidda Jones
Bidda Jones
MPMANDY Paterson
MANDY Paterson
SZSarah Zito
Sarah Zito
In Australia, cat owners are encouraged to keep their pet cats contained on their property at all times. This study explores the relationship between the intentions and behaviours of 72 kitten and cat adopters from a RSPCA Queensland animal shelter, to provide a more in-depth understanding of the factors influencing the adoption of cat containment behaviours. At the time of adoption, 64 participants (89%) indicated they were intending to keep their cat fully contained. Eight weeks after adoption, 63 participants (87%) reported they were doing so (59 who had stated their intention at the time of adoption, and 4 who had not). We found cat owner containment behaviour was moderately correlated with containment intentions. For some of the participants when it came to enacting this behaviour, their intentions and the provided education information was not enough to overcome the more compelling capability, opportunity and motivational factors which presented themselves once they got home. We were able to identify these factors and suggest additional behaviour change strategies that would assist. Although it is important to provide cat adopters with advice about how to contain their cats properly, these results also highlight the importance of focusing attention on other behaviour change strategies that address the particular barriers faced by some cat-owners who are unsuccessful in keeping their cat contained on their property.

10 January 2020 in Animals
Verified
Journal Article
Open access
PDF file
SRSally Rizzuto
Sally Rizzuto
DEDi Evans
Di Evans
WBWilson Bethany
Wilson Bethany
PMPaul McGreevy
Paul McGreevy
There are longstanding disagreements between the rodeo industry stakeholders and animal welfare advocates about the wellbeing of the animals used in events. The current study aims to determine whether qualitative behavioural assessment (QBA) is effective in identifying the emotional state of calves in so-called calf-roping events. Still images of calves captured from videos of calf-roping were shown to two groups: practitioners (n = 7) and students (n = 16). For each image, they scored (on a scale of 1–10) 12 descriptive terms—e.g., stressed, energetic, confused, frightened—based on how strongly they thought the animal was experiencing that emotion. Scores were analysed using Factor Analysis and Ordinal Logistic Regression models, while inter-rater reliability was assessed using Intra-Class Correlation Coefficients. The same imagery (video and images) were analysed for behaviours associated with the calves’ ears, neck, legs and tail to develop a behavioural ethogram, which was analysed with Binary Logistic Regression and Anova wrapping. The students were also surveyed to assess their empathy towards animals. The chase phase attracted significantly higher scores for stressed (µ = 5.0, p < 0.001), agitated (µ = 5.1, p < 0.001), anxious (µ = 5.0, p < 0.001) and frightened (µ = 5.0, p < 0.001), and the behavioural ethogram revealed that calves commonly galloped (p < 0.001) and held their tails rigidly during this phase (p = 0.010). In contrast, the recovery phase was characterised by significantly higher scores for calm (µ = 3.0, p < 0.001), contented (µ = 2.7, p < 0.001) and relieved (µ = 1.6, p < 0.001), and calves moved slower (p < 0.001) with more neutral ear positions (ears axial p = 0.008, ears forward p = 0.010). A clear pre- and post-rope effect was evident, showing that QBA indicated that calves were anxious while being chased and were relieved when they had been released. The survey data revealed that students who had more empathy for animals in pain and for those used in experiments were more empathetic towards calves during the chase phase. They felt that calves being chased were agitated, anxious, stressed, frightened and confused. These results confirm that QBA has the potential as a tool for assessing the welfare of animals used in rodeos.

5 March 2024 in Animals
Verified
Journal Article
Open access
PDF file
AJAngela Jeppesen
Angela Jeppesen
RERebekah Eyers
Rebekah Eyers
DEDi Evans
Di Evans
MWMichael Ward
Michael Ward
AQAnne Quain
Anne Quain
Jumps racing is a form of Thoroughbred horse racing that involves hurdles and steeples and typically longer distances, and heavier weights compared with flat racing, which does not incorporate obstacles. In Australia, jumps racing is carried out only in Victoria, one of eight states and territories. The continuation of jumps racing is contentious due to the higher risk of fatalities, falls and injuries for horses, compared with flat racing. While measures have been introduced by the industry to improve the safety of riders and horses, the rates of fatalities, falls and injuries in horses participating in jumps races have not been collectively reported in Australia since the 2012 to 2014 race seasons. Although information on individual horse fatalities, falls and injuries is published by Racing Victoria in Stewards’ Reports, the data are not aggregated, and so cannot readily be used to assess trends or evaluate the efficacy of safety measures introduced by the industry. The aim of this study was to determine the fatality, fall and injury rates for horses participating in hurdle and steeplechase races in Victoria in the 2022 and 2023 Thoroughbred horse jumps racing seasons compared with horses participating in flat races at the same race meets. Data on horse fatalities, falls and injuries were extracted from the published Racing Victoria race results and Stewards’ Reports for the jumps races (n = 150) and corresponding flat races (n = 157) held at the 38 jumps race meets in Victoria in 2022 and 2023. Overall, horse fatalities, falls and injuries occurred at higher rates in jumps races compared with flat races during the study period. The rate of horse fatalities in jumps races was 3.3 per 1000 starts, with no fatalities in flat races. The rate of horse falls in hurdle races was 24 per 1000 starts and 41.6 per 1000 starts in steeplechase races, comparable with rates previously reported in the 2012 to 2014 seasons. There were no falls in flat races. Horse injuries occurred at a rate of 68.9 per 1000 starts in jumps races compared with 18.8 per 1000 starts in flat races. In hurdle and steeplechase races, veterinary clearance being required following horse injury was 5.4 times (OR 5.4, 95% CI 2.8–10.2) and 7.2 times (OR 7.2, 95% CI 3.3–15.6) more likely, respectively, compared with flat races. The risk of trauma was 4 times more likely in hurdle and steeplechase races (OR 4.8, 95% CI 1.7–13.3 and OR 4.1, 95% CI 1.2–13.4, respectively) and the risk of lameness was increased by 2.5 times in hurdles (OR 2.5, 95% CI 1.2–5.2) and 5.1 times in steeplechase races (OR 5.1, 95% CI 2.3–11.5), compared with flat races. These findings support concerns about the welfare of horses involved in jumps racing and of the need for further safety measures to reduce these risks.

19 January 2023 in Animals
Verified
Journal Article
Open access
PDF file
SDSylvia Dixon
Sylvia Dixon
DEDi Evans
Di Evans
TVThinza Vicky Vindevoghel
Thinza Vicky Vindevoghel
MWMichael Ward
Michael Ward
AQAnne Quain
Anne Quain
There are significant welfare concerns with the use of calves in calf roping (also known as rope-and-tie) events in rodeos. However, little work has been carried out to scientifically assess calves’ behavioural responses to the stressors of these events. This study evaluated video footage of calves (n = 15) during roping events from two rodeos. An ethogram was created to assess behavioural parameters during five phases of a calf roping event: Chase, Lasso, Catch and Restraint, Leg Tie and Release. Six behavioural parameters were observed during each of the five phases: Ear position (Axial or Back Up/Down), Eye White, Leg Movement (Slow/Fast), Tail Position (Rigid/Swish/Relaxed), Vocalisation and Evasive Behaviour. The presence or absence of each behaviour during each phase of roping was documented. Chi-squared analysis found significant (p < 0.001) differences in the proportions of behaviours observed in all five phases of the event. Binary logistic regression was performed, and six behaviours were observed to be significant across all phases: Evasive Behaviour (p < 0.001), Vocalisation (p = 0.002) and Legs Fast (p = 0.016) were more likely to be observed in comparison to Ears Axial, which was used as a reference category. Eye White (p < 0.001), Legs Slow (p < 0.001) and Tail Relaxed (p < 0.001) were less likely to be observed than Ears Axial. This study found that calves exhibit signs of distress in all of the phases of calf roping, including the Release phase.

20 April 2022 in Animals
Verified
Journal Article
Open access
PDF file
MSMorgan Stonebridge
Morgan Stonebridge
DEDi Evans
Di Evans
JKJane Kotzmann
Jane Kotzmann
Animal sentience is recognised either implicitly or explicitly in legislation in all Australian states and territories. In these jurisdictions, animal welfare legislation prohibits acts of cruelty towards animals because animals have the capacity to experience pain or suffering. This acknowledgement is supported by scientific research that demonstrates animal sentience, as well as public opinion. Despite these legal prohibitions, calf-roping, a common event at rodeos, is permitted in the majority of Australian jurisdictions. In recent times, calf-roping has generated significant public concern due to the potential for injury, pain or distress for the calves involved. This concern is evidently shared in some overseas jurisdictions, such as New Zealand, where animal advocacy organisations have filed a legal challenge asserting that rodeo events violate New Zealand’s animal welfare legislation due to the pain and distress inflicted on the animals. This commentary discusses these welfare concerns, the legislative inconsistencies between Australian jurisdictions and the problematic legal status of calf-roping in Australia.

13 February 2026 in Ruminants
Verified
Journal Article
Open access
PDF file
ADAditya Dave
Aditya Dave
DEDi Evans
Di Evans
TVThinza Vicky Vindevoghel
Thinza Vicky Vindevoghel
MWMichael Ward
Michael Ward
AQAnne Quain
Anne Quain
Calf rope-and-tie is a competitive rodeo event that has drawn criticism due to concerns around the potential for stress and injury of calves. While previous studies have utilised behavioural indicators to assess the welfare of rodeo calves in the arena, there are no published studies on rodeo calf behaviour during confinement in the chute prior to release into the arena. We analysed video footage of calves in the chute prior to release during two rodeo events. The footage was categorised into short duration (SD, 28–51 s, n = 17) and long duration (LD, 52–166 s, n = 14) based on the total length of the video clip of each calf in the chute. To enable comparison, the final 28 s from both SD and LD categories before calf release were reviewed, and an ethogram was developed to assess the frequency of observable calf behaviours. All calves expressed at least one behaviour indicative of a negative mental state, with ear and head movements being the most frequent. Behaviours observed in SD and LD clips were strongly correlated (Spearman’s rank correlation coefficient 0.875, p < 0.001). Longer confinement was associated with increased frequency of “red flag” behaviours indicating fear and/or stress (chi-square = 10.48, p = 0.0149), including mouth opening, tongue protrusion, rearing and escape attempts. We conclude that calves used in roping events experience fear and stress while held in the chute, especially during longer periods of confinement.