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Is regional variability in environmental conditions driving differences in the early body condition of endemic Australian fur seal pups? 环境条件的区域差异是否导致了澳大利亚特有海狗幼仔早期身体状况的差异?
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-20 DOI: 10.1071/wr22113
Demelza Wall, S. Thalmann, S. Wotherspoon, M. Lea
{"title":"Is regional variability in environmental conditions driving differences in the early body condition of endemic Australian fur seal pups?","authors":"Demelza Wall, S. Thalmann, S. Wotherspoon, M. Lea","doi":"10.1071/wr22113","DOIUrl":"https://doi.org/10.1071/wr22113","url":null,"abstract":"ABSTRACT Context. Good body condition in juvenile marine mammals is crucial for survival and, therefore, population demography. Australian fur seals, endemic to Australia, recently established a breeding colony at the southern edge of their range, at The Needles, a small group of islands in south-west Tasmania (43.6614°S) and a significant distance from their core breeding range in Bass Strait. Aims. We aimed to compare pup body condition at two breeding colonies, distinct in time since establishment and latitude. Specific aims were to: (1) establish the timing of peak pupping, to compare condition of known-age pups, and determine a baseline at The Needles; (2) investigate pup body condition over time at an established colony; and (3) gain insight into the effects of environmental conditions on pup body condition. Methods. We conducted a colony comparison of pup body condition using condition indices at The Needles and an established breeding colony in Bass Strait, Tenth Island, for the 2019/20 and 2020/21 breeding seasons. Pup body condition was quantified at Tenth Island over 18 years (2003–2020) using a long-term morphometric dataset. To establish breeding phenology at these two colonies, we determined peak pupping date for the 2019/20 breeding season using daily pup counts. We assessed the effect of environmental parameters on body condition for the long-term dataset. Key results. Pups from The Needles displayed significantly higher body condition than those from Tenth Island, despite similar peak pupping date. Breeding phenology was consistent with published timing for Australian fur seals. Pup body condition at Tenth Island over the 2-year colony comparison was comparable to the historical average. Environmental drivers that affect maternal foraging efficiency are linked to pup body condition. Conclusions. Higher pup body condition at The Needles is likely underpinned by better foraging conditions resulting in increased pup provisioning levels. Our results indicate that south-west Tasmania is a region of foraging and emerging breeding importance for Australian fur seals. Implications. Future research to monitor pup body condition, maternal foraging behaviour and ecosystem productivity at The Needles will help to provide greater understanding of likely population trajectories at this southernmost breeding site for Australian fur seals.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"15 1","pages":"993 - 1007"},"PeriodicalIF":1.9,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85446342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Combining acoustic localisation and high-resolution land cover classification to study predator vocalisation behaviour 结合声学定位和高分辨率土地覆盖分类来研究捕食者的发声行为
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-13 DOI: 10.1071/wr22007
Elisabeth Bru, Bethany R. Smith, Hannah Butkiewicz, Amy C. Fontaine, Angela Dassow, Jessica L. Owens, H. Root-Gutteridge, Loretta Schindler, Arik Kershenbaum
{"title":"Combining acoustic localisation and high-resolution land cover classification to study predator vocalisation behaviour","authors":"Elisabeth Bru, Bethany R. Smith, Hannah Butkiewicz, Amy C. Fontaine, Angela Dassow, Jessica L. Owens, H. Root-Gutteridge, Loretta Schindler, Arik Kershenbaum","doi":"10.1071/wr22007","DOIUrl":"https://doi.org/10.1071/wr22007","url":null,"abstract":"ABSTRACT Context. The ecology of cryptic animals is difficult to study without invasive tagging approaches or labour-intensive field surveys. Acoustic localisation provides an effective way to locate vocalising animals using acoustic recorders. Combining this with land cover classification gives new insight into wild animal behaviour using non-invasive tools. Aims. This study aims to demonstrate how acoustic localisation – combined with high-resolution land cover classification – permits the study of the ecology of vocalising animals in the wild. We illustrate this technique by investigating the effect of land cover and distances to anthropogenic features on coyote and wolf vocal behaviour. Methods. We collected recordings over 13 days in Wisconsin, USA, and triangulated vocalising animals’ locations using acoustic localisation. We then mapped these locations onto land cover using a high-resolution land cover map we produced for the area. Key results. Neither coyotes nor wolves vocalised more in one habitat type over another. Coyotes vocalised significantly closer to all human features than expected by chance, whereas wolves vocalised significantly further away. When vocalising closer to human features, coyotes selected forests but wolves showed no habitat preference. Conclusions. This novel combination of two sophisticated, autonomous sensing-driven tools permits us to examine animal land use and behavioural ecology using passive sensors, with the aim of drawing ecologically important conclusions. Implications. We envisage that this method can be used at larger scales to aid monitoring of vocally active animals across landscapes. Firstly, it permits us to characterise habitat use while vocalising, which is an essential behaviour for many species. Furthermore, if combined with additional knowledge of how a species’ habitat selection while vocalising relates to its general habitat use, this method could permit the derivation of future conclusions on prevailing landscape use. In summary, this study demonstrates the potential of integrating acoustic localisation with land cover classification in ecological research.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"1 1","pages":"965 - 979"},"PeriodicalIF":1.9,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77253839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applying a versatile, comprehensive, attribute-based waterhole classification scheme to ecosystem-based management challenges 应用一个通用的、全面的、基于属性的水孔分类方案来应对基于生态系统的管理挑战
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-13 DOI: 10.1071/wr22027
K. Glanville, J. Perry, T. Ryan, M. Ronan, P. Zivec
{"title":"Applying a versatile, comprehensive, attribute-based waterhole classification scheme to ecosystem-based management challenges","authors":"K. Glanville, J. Perry, T. Ryan, M. Ronan, P. Zivec","doi":"10.1071/wr22027","DOIUrl":"https://doi.org/10.1071/wr22027","url":null,"abstract":"ABSTRACT Context. Understanding habitat suitability for feral animals across a landscape is important for conservation planning because the spatial and temporal availability of water provides critical limits to native biodiversity and the processes that threaten it. Previous attempts to support management actions on feral pig populations through predictions of population abundance, distribution and seasonal resource constraints have been confounded by a lack of knowledge, classification and mapping of waterholes – which are critical to their survival. Aims. In this paper, we aimed to apply a waterhole classification scheme for feral pig management to address gaps in our understanding of water and food availability through space and time, at scales relevant to feral animal movement and resource use. Methods. We utilise an attribute-based waterhole classification scheme for ecosystem-based management by defining a waterhole typology of feral pig habitat suitability and applying it spatially. Key results. Five attributes (water permanence, predictability of inundation, oceanic influence, dominant vegetation and shading) reflect many of the critical requirements for feral pig habitat in northern Australia. The attributes directly relate to the environmental constraints that exert population and behavioural pressure on feral pigs. These attributes were applied spatially in a specific hierarchy to group waterholes into 21 types. Conclusions. A waterhole typology that characterises within the context of their suitability for feral pig populations is foundational for systematic adaptive management and monitoring programs that aim to reduce the impact of threatening processes on freshwater ecosystems. Implications. Refining the mapping of important feral pig habitat variables (water and food) will greatly improve modelling approaches that aim to support data-driven management approaches, such as connectivity analysis and estimating population dynamics to inform culling programs. Here we demonstrate a significant increase in overlap with known feral pig distributions using a much smaller mapped effective management area when compared with previous best available spatial products.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"337 1","pages":"1085 - 1096"},"PeriodicalIF":1.9,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75932337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Habitat structure facilitates coexistence of native and invasive mesopredators in an Australian tropical savanna 澳大利亚热带稀树草原的栖息地结构促进了本土和入侵中掠食者的共存
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-13 DOI: 10.1071/wr22078
Gavin J. Trewella, T. Cremona, Harry Nevard, B. Murphy
{"title":"Habitat structure facilitates coexistence of native and invasive mesopredators in an Australian tropical savanna","authors":"Gavin J. Trewella, T. Cremona, Harry Nevard, B. Murphy","doi":"10.1071/wr22078","DOIUrl":"https://doi.org/10.1071/wr22078","url":null,"abstract":"ABSTRACT Context. The introduction of the cat (Felis catus) to Australia has been a key driver of the decline and extinction of the continent’s endemic mammals. Currently, there is no clear long-term solution to controlling feral populations of cats at a landscape scale. As such, understanding how environmental conditions and habitat attributes can mediate the coexistence between introduced predators and native mammals can improve management outcomes for threatened species. Aims. We sought to compare the differences in habitat use by feral cats and a remnant population of the endangered northern quoll (Dasyurus hallucatus) to understand what environmental variables allow these two mesopredators to coexist in tropical savanna of Cape York Peninsula, Queensland. Methods. We deployed grids of motion-activated cameras three times per year over a 3-year period, across Eucalyptus tetrodonta-dominated plateaux known to be inhabited by feral cats and northern quolls. We modelled the spatial variation in the frequencies of detection of feral cats and northern quolls (referred to as ‘habitat use’), as a function of biotic and abiotic environmental variables by using a generalised linear model for consistent variables and a generalised linear mixed-effect model for fluctuating variables. Key results. Habitat use by feral cats was most frequent in areas with high fire frequencies and low tree basal area, whereas habitat use by northern quolls was most frequent in areas of high basal area of E. tetrodonta (a commonly used den tree species), topographic ruggedness, and long-unburnt savanna. Conclusions. Frequent fires in tropical savanna promote habitat use by feral cats and can result in a reduction of critical habitat for northern quolls. Implications. We postulate that remnant populations of northern quolls on Cape York Peninsula occur in less frequently burnt refugia, primarily on top of plateaux that support high-biomass tropical savanna dominated by E. tetrodonta. Our findings highlighted that threatened mammals can persist alongside introduced predators in tropical savanna but are dependent on the maintenance of structurally complex habitat.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"8 1","pages":"1058 - 1070"},"PeriodicalIF":1.9,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86295045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increasing the accuracy and efficiency of wildlife census with unmanned aerial vehicles: a simulation study 利用无人机提高野生动物普查的准确性和效率:模拟研究
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-09 DOI: 10.1071/wr22074
Pascal Fust, Jacqueline Loos
{"title":"Increasing the accuracy and efficiency of wildlife census with unmanned aerial vehicles: a simulation study","authors":"Pascal Fust, Jacqueline Loos","doi":"10.1071/wr22074","DOIUrl":"https://doi.org/10.1071/wr22074","url":null,"abstract":"ABSTRACT Context. Manned aerial surveys are an expensive endeavour, which is one of the core reasons for insufficient data coverage on wildlife monitoring in many regions. Unmanned aerial vehicles (UAVs) can be a valid, cost-efficient alternative, but the application of UAVs also comes with challenges. Aims. In this explorative simulation study, our aim was to develop an efficient layout of UAV surveys that could potentially overcome challenges related to double counts of individuals and even area coverage, and that would minimise off-effort travel costs. Methods. Based on different simulated survey layouts we developed hypothetically for the Katavi National Park in Tanzania, we quantified the advantages that UAVs might offer. We then compared these findings with manned aerial surveys. Key results. The proposed new survey design and layout indicated an increase in survey efficiency of up to 21% when compared with conventional survey designs using parallel transect lines. Despite the complex flight pattern, the accuracy of the flight paths of the UAV outcompeted those of manned aerial surveys. The adapted survey layout enabled a team of two operators with a small battery-powered UAV to cover an area of up to 1000 km2 per day, without specific infrastructural requirements. Conclusion Our calculations may serve as a vital spark for innovation for future UAV survey designs that may have to deal with large areas and complex topographies while reducing operational effort. Implications. UAV applications, if well designed, provide useful complementation, if not replacement, for manned aerial surveys and other remotely sensed data collections. Our suggested survey design is transferable to other study regions, and may be useful for applying UAVs efficiently.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"28 1","pages":"1008 - 1020"},"PeriodicalIF":1.9,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72875855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carcass use by mesoscavengers drives seasonal shifts in Australian alpine scavenging dynamics 中食腐动物的尸体利用驱动了澳大利亚高山食腐动态的季节性变化
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-09 DOI: 10.1071/wr22100
James Vandersteen, Christopher Fust, M. Crowther, Matt Smith, Benjamin Viola, Philip Barton, T. Newsome
{"title":"Carcass use by mesoscavengers drives seasonal shifts in Australian alpine scavenging dynamics","authors":"James Vandersteen, Christopher Fust, M. Crowther, Matt Smith, Benjamin Viola, Philip Barton, T. Newsome","doi":"10.1071/wr22100","DOIUrl":"https://doi.org/10.1071/wr22100","url":null,"abstract":"ABSTRACT Context. Carrion is a high-energy and nutrient-rich resource that attracts a diverse group of vertebrate scavengers. However, despite the carrion pool being highly seasonal in its availability, there is little understanding of how scavengers utilise carcasses across all four seasons. Aims. To assess how season influences carcass-detection times by vertebrate scavengers and their rates of scavenging. Methods. We used remote cameras to monitor vertebrate scavenging at 15 eastern grey kangaroo (Macropus giganteus) carcasses in four consecutive seasons (summer, autumn, winter, and spring; total 58 carcasses) in the Australian Alps. Key results. In total, 745 599 remote-camera images were captured, within which 34 vertebrate species were identified, nine of which were recorded to actively scavenge. Time to first detection of carcasses by vertebrate scavengers was 5.3 and 9.6 times longer during summer (average 144 h) than during spring (average 34 h) and winter (average 24 h) respectively. Rates of vertebrate scavenging were highest in winter and spring, with brushtail possums (Trichosurus vulpecula) accounting for 78% of all scavenging events during winter, and ravens (Corvus spp.) accounting for 73% during spring. High rates of carcass use by these mesoscavengers may reflect a scarcity of other food sources, the demands of their breeding season, or a relative absence of scavenging by larger dominant species such as dingoes (Canis dingo) and wedge-tailed eagles (Aquila audax). Conclusions. These findings demonstrate the highly seasonal nature of vertebrate scavenging dynamics in an alpine ecosystem, and that mesoscavengers, not apex scavengers, can dominate the use of carcasses. Implications. Accounting for the effects of season is integral to understanding the way animals utilise carcasses in alpine and other strongly seasonal environments; and for developing further our knowledge of ecosystem processes linked to decomposition.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"172 1","pages":"1031 - 1045"},"PeriodicalIF":1.9,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76671905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Factors influencing the adaptability and habitat use of rescued Malayan sun bears (Helarctos malayanus) released in Peninsular Malaysia 马来西亚半岛获救马来熊(Helarctos malayanus)的适应性和栖息地利用的影响因素
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-02 DOI: 10.1071/WR21108
Kamaruddin Z. Abidin, M. S. Mansor, I. Husna, Nabilah Nazri, Farah Ayuni Farinordin, Nur Amalina Mohd Izam, D. Magintan, S. M. Nor
{"title":"Factors influencing the adaptability and habitat use of rescued Malayan sun bears (Helarctos malayanus) released in Peninsular Malaysia","authors":"Kamaruddin Z. Abidin, M. S. Mansor, I. Husna, Nabilah Nazri, Farah Ayuni Farinordin, Nur Amalina Mohd Izam, D. Magintan, S. M. Nor","doi":"10.1071/WR21108","DOIUrl":"https://doi.org/10.1071/WR21108","url":null,"abstract":"Abstract Context. The lack of documentation and detailed assessment of previous sun bear (Helarctos malayanus) release programs raises concerns about bears’ capacity to adapt to their new habitats and key elements of release success. AimsWe evaluated the influence of the sun bears’ individual profiles and environmental factors on their adaptability, and investigated their habitat use and movements in the wild. Methods. We released 13 rescued sun bears (four wild-caught and nine rehabilitated) to natural habitats between December 2015 and August 2017, and inferred adaptability process by analysing their pre- and post-release data. Key results. Post-release monitoring showed that sun bears required at least a month to acclimatise to their release area. No nuisance cases were reported, and bears were observed avoiding monitoring teams in a series of encounters. Principal-component analysis identified a previous history of ill health (e.g. malnutrition), low avoidance of humans prior to release and low potential of release sites as significant factors associated with poor adaptability of released bears. Rehabilitated bears also showed lower adaptability to hilly topography with an average elevation of more than 500 m. Individual profiles of adult physically fit wild-caught bears with high avoidance of humans prior to release were associated with high adaptability. Binary logistic regression indicated that habitat type was the main factor influencing bear movement. Bears had a high affinity for oil palm plantations adjacent to the forest edge. Most habitat use of released bears was close to the forest edge. Conclusions. In terms of competition, predation, food availability, and adaptability, the selection of forest edges adjacent to other favourable habitats is perceived as a more opportunistic survival strategy, as long as the bears do not rely on humans to survive and endure with the natural interactions in the wild. Implications. This study emphasises the importance of improving the likelihood of survival of rehabilitated bears, especially in the early release phase. Reducing human–bear interaction in rehabilitation centres by practising a buddy system and minimal human contact in captivity considerably enhances release effectiveness.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"8 1","pages":"129 - 140"},"PeriodicalIF":1.9,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85492202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Do high recapture rates indicate representative sampling? The relationship between recapture probability, risk-taking, and personality 高回收率是否表明有代表性的抽样?再获概率、冒险和个性之间的关系
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-02-02 DOI: 10.1071/wr22046
K. C. Johnstone, C. Mcarthur, Peter B. Banks
{"title":"Do high recapture rates indicate representative sampling? The relationship between recapture probability, risk-taking, and personality","authors":"K. C. Johnstone, C. Mcarthur, Peter B. Banks","doi":"10.1071/wr22046","DOIUrl":"https://doi.org/10.1071/wr22046","url":null,"abstract":"ABSTRACT Context. Monitoring programs provide valuable information on wildlife populations, thereby underpinning strategies for conservation and control. For threatened species, where every animal represents a substantial portion of the population, representative sampling is vital. One fundamental challenge during sampling is understanding drivers of survey bias; for instance, behavioural heterogeneity in trap response. Methods such as capture–mark–recapture have long been used to estimate capture and recapture heterogeneity; yet, this method, like many others, is able to gather data only from the trappable and re-trappable portion of the population; a problem that presents a particular challenge for small or vulnerable populations. A greater understanding of why biases arise can result in improved survey methods, more reliable survey data and increased modelling accuracy. Aims. We focus on an endangered species with unusually high recapture probabilities (0.78–0.92), namely, the mountain pygmy-possum (Burramys parvus). Specifically, we examine whether, within a single trapping session, a recapture bias exists either as a function of past trapping experience or personality. Methods. We tested whether recapture probability differs among cohorts with different capture histories (‘known’ animals captured during trapping sessions in previous years vs ‘new’ animals trapped for the first time in this study). We also tested for individual personality, general risk-taking behaviour during foraging, and subsequent links to recapture probability. Key results. Recapture probability was significantly affected by cohort. New animals had lower probabilities of recapture and took fewer risks during foraging than did known animals. Although personality did not significantly influence recapture probability, it did influence risk-taking during foraging. Conclusions. Despite high recapture probability within the populations, captures were significantly skewed towards a subset of the population, likely being due to different perceptions of risk among individuals. Implications. Understanding potential sources of bias during live-capture surveys is the initial step towards modifying and improving surveys to reduce sampling biases and to ensure representative population sampling.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"43 1","pages":"954 - 964"},"PeriodicalIF":1.9,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82723864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of lion (Panthera leo) scat as a wild dog (Lycaon pictus) deterrent on game farms 评估狮子(Panthera leo)的粪便作为野狗(Lycaon pictus)在游戏农场的威慑
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-01-31 DOI: 10.1071/wr22084
Ronja D. Haring, Grant Beverley, P. Thompson, A. Taylor, J. O'Dell
{"title":"Evaluation of lion (Panthera leo) scat as a wild dog (Lycaon pictus) deterrent on game farms","authors":"Ronja D. Haring, Grant Beverley, P. Thompson, A. Taylor, J. O'Dell","doi":"10.1071/wr22084","DOIUrl":"https://doi.org/10.1071/wr22084","url":null,"abstract":"ABSTRACT Context. The conservation of the Endangered African wild dog (Lycaon pictus) poses a major challenge to conservationists because outside the boundaries of protected areas, wild dogs are prone to conflict with farmers. Mitigation measures appropriate for game farmers are scarce, leaving them with limited options to reduce wild dog impact. As a result, targeted persecution is a common occurrence. However, wild dogs are subject to intraguild competition with dominant competitors, often resulting in their suppression and spatial displacement. Therefore, olfactory cues of lion presence may trigger an adverse reaction in wild dogs, and could be a means to manage wild dog movements across the landscape to prevent conflict with farmers. Aims. We aimed to evaluate whether wild dogs can be deterred by simulating lion presence. Methods. By using translocated scent cues in the form of lion scat deployed along the perimeter of plots, lion presence was simulated on game farms where lions were absent. The rate and duration of incursions by wild dogs, collared with GPS trackers, into control and treatment plots (‘group’) were evaluated. Key results. Wild dog incursion rate dropped by 55.5%, and duration of incursion events dropped by 72.7%, after lion scat was deposited. Control and treatment plots were equally affected with no significant effect of the grouping on wild dog movement. The magnitude of the treatment effect differed between packs. Conclusion. The significant decline of wild dog movement after implementation of treatment suggests a deterrence effect. The insignificant effect of group on wild dog movement indicates large-scale avoidance triggered by a change in the wild dogs’ risk perception across the landscape following treatment. The fact that the magnitude of the treatment effect differed between packs indicates that the response to predator cues is likely to be context-dependent. Implications. The findings present a novel approach to managing free-roaming wild dogs by utilising biologically relevant cues, which may benefit wild dog conservation. There is a need for further research to develop the emerging field of scent studies to provide non-lethal solutions and progress towards evidence-based large carnivore management practices.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"119 1","pages":"1021 - 1030"},"PeriodicalIF":1.9,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77949549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reducing koala roadkill: a social marketing formative study 减少道路上考拉的死亡:一项社会营销形成性研究
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-01-30 DOI: 10.1071/WR21172
Bo Pang, Anran Zhang, Tori Seydel, Patricia David, Murooj Yousef, S. Rundle‐Thiele
{"title":"Reducing koala roadkill: a social marketing formative study","authors":"Bo Pang, Anran Zhang, Tori Seydel, Patricia David, Murooj Yousef, S. Rundle‐Thiele","doi":"10.1071/WR21172","DOIUrl":"https://doi.org/10.1071/WR21172","url":null,"abstract":"ABSTRACT Context. Koalas are an Australian icon and their numbers are seriously declining. In some regions, a key threat to koalas is vehicle strikes. Therefore, understanding what might convince people to be more vigilant and willing to slow down in areas with high koala numbers is an important research undertaking. Aims. This study aims to use the wildlife value orientation (WVO) framework, a value-based segmentation process, to extend conservation insight. It will do this by demonstrating the application of social cognitive theory (SCT), to investigate how wildlife beliefs can help in identifying worthwhile groups to target with wildlife conservation interventions. The findings of this study can be used to benefit koalas by assisting conservation planning efforts to decrease driving speed and promote positive changes in driving behaviour. Methods. Data collection through intercept surveys was employed by convenience sampling in 2019. A total of 661 responses were collected from residents of a koala priority conservation area in Queensland, Australia. Respondents were asked about their wildlife values, beliefs, attitudes, norms, barriers, and intentions to slow down, while driving in a koala area. Four key groups were identified based on respondents’ WVO (i.e. mutualists, pluralists, traditionalists and distanced) and multigroup structural equation modelling was conducted to understand group differences. Key results. The analysis identified several significant psychographic factors that influenced people’s intentions to protect koalas dependent on what wildlife value respondents held. Injunctive norms were important, positively influencing the intention of traditionalists and pluralists to slow down while driving in a koala area. Individual attitude positively influenced safe driving intention for pluralists, while perceived barriers negatively influenced mutualists’ intention to slow down. Other groups did not show similar results. Conclusions. A person’s WVO can influence their intention to protect koalas by modifying their driving behaviour. Various social marketing approaches can benefit conservation strategies aimed at different WVO groups with targeted messages and interventions for each group. Implications. This paper demonstrates the value of SCT in explaining people’s intention to slow down to protect koalas. The identification of group differences demonstrates that varied approaches are required to deliver behavioural change to benefit koalas.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"2 1","pages":"858 - 868"},"PeriodicalIF":1.9,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88896777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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