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Emerging Human–Carnivore Conflict Following Large Carnivore Reintroductions Highlights the Need to Lift Baselines 大型食肉动物重新引入后出现的人类-食肉动物冲突凸显了提高基线的必要性
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-27 DOI: 10.3957/056.051.0136
Natalia M. Banasiak, M. Hayward, G. Kerley
Human–wildlife conflicts may be unintended consequences of conservation successes and rewilding, and could be exacerbated where baselines around biodiversity have shifted. Mediating conflict is a conservation priority both due to its socio-economic impacts and due to consequences that negative perceptions of wildlife have for conservation outcomes. We document locally novel emergent conflict following reintroductions of large carnivores to fenced reserves in the Eastern Cape Province, South Africa. Interviews with managers of 13 reserves (reintroduction sites) and adjacent properties show that reintroduced carnivores escaped from eight reserves (61.5%) and were recorded on 25 neighbouring properties (36.7%). Since large carnivore reintroductions to the Eastern Cape Province began in 1996, 75 associated conflict events were reported to the authors. This conflict was not evenly distributed, spatially or economically. Effective, evidence-based mitigation strategies are needed to ensure the continued success of conservation actions. Neighbours and policymakers should be primed for such lifted baselines where predator numbers and/or densities reflect what was historically observed. These conflicts should be anticipated and included in the early planning phases of reintroduction adaptive management processes. Conflict mitigation strategies for reintroductions should include lifting baselines to manage perceptions around recovering wildlife populations or face the prospects of re-extirpation associated with conflict-motivated retaliation.
人类与野生动物之间的冲突可能是保护成功和重建的意外后果,并且在生物多样性基线发生变化的情况下可能会加剧。调解冲突是保护的优先事项,这既是因为冲突的社会经济影响,也是因为对野生动物的负面看法对保护结果的影响。我们记录了南非东开普省围栏保护区重新引入大型食肉动物后当地新出现的冲突。对13个保护区(重新引入点)和邻近地区的管理人员的采访显示,重新引入的食肉动物从8个保护区逃脱(61.5%),并在25个邻近地区记录(36.7%)。自1996年开始向东开普省重新引入大型食肉动物以来,向作者报告了75起相关冲突事件。这场冲突在空间或经济上分布不均。需要有效的、基于证据的缓解策略,以确保保护行动的持续成功。邻居和政策制定者应该为这样一个提升的基线做好准备,即捕食者的数量和/或密度反映了历史上观察到的情况。应预见到这些冲突,并将其纳入重新引入适应性管理过程的早期规划阶段。重新引入的冲突缓解战略应包括取消基线,以管理对恢复野生动物种群的看法,或面临与出于冲突的报复有关的重新灭绝的前景。
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引用次数: 4
Assessing the Performance of Oribi Antelope Populations at Multiple Scales: The Limitations of Citizen-Led Oribi Conservation 在多尺度上评估欧比羚羊种群的表现:公民主导的欧比羚羊保护的局限性
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-06 DOI: 10.3957/056.051.0127
T. Patel, Keenan Stears, I. Little, Adrian M. Shrader
Effective monitoring programmes are critical to understand and mitigate declining wildlife populations. In South Africa, the majority of oribi antelope (Ourebia ourebi ourebi ) occur on private rangelands as broadly distributed and highly-fragmented populations. Thus, to effectively manage such a species, conservation organizations rely on citizen science-led conservation initiatives, whereby members of the public provide data on oribi population demographics and potential threats. Using these data, we estimated the total oribi population size and assessed the population trend of oribi in KwaZulu-Natal, South Africa, over a 14-year period (2001–2014). We found that the oribi population has declined by 30% over the 14 years. However, oribi population estimates were highly correlated with the number of returned survey forms. This relationship makes it difficult to accurately assess population trends and almost impossible to determine if any changes in conservation management have influenced oribi populations. Thus, issues associated with citizen science and data quality (i.e. participation levels), may limit the ability of the oribi census to accurately inform oribi conservation and management. We discuss the value and limitations of citizen science in oribi conservation with the ultimate goal of improving citizen-led oribi conservation.
有效的监测方案对于了解和减少野生动物数量的减少至关重要。在南非,大多数奥里比羚羊(Ourebia ourebi ourebi)分布广泛,种群高度分散,分布在私人牧场上。因此,为了有效管理这样一个物种,保护组织依赖于公民科学领导的保护举措,通过该举措,公众提供有关奥里比种群人口统计和潜在威胁的数据。利用这些数据,我们估计了奥里比人的总人口规模,并评估了南非夸祖鲁-纳塔尔州奥里比人在14年期间(2001-2004年)的人口趋势。我们发现奥里比人的数量在14年里下降了30%。然而,奥里比人的估计数与返回的调查表格的数量高度相关。这种关系使得准确评估种群趋势变得困难,几乎不可能确定保护管理的任何变化是否影响了奥里比种群。因此,与公民科学和数据质量(即参与水平)相关的问题可能会限制奥里比人口普查准确告知奥里比保护和管理的能力。我们讨论了公民科学在奥里比保护中的价值和局限性,最终目标是改善公民主导的奥里比保护。
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引用次数: 1
Ten Years on: Have Large Carnivore Reintroductions to the Eastern Cape Province, South Africa, Worked? 十年过去了:大型食肉动物重新引入南非东开普省成功了吗?
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2021-09-24 DOI: 10.3957/056.051.0111
Natalia M. Banasiak, M. Hayward, G. Kerley
Large (>15 kg) carnivores, namely lions (Panthera leo), leopards (Panthera pardus), cheetahs (Acinonyx jubatus), African wild dogs (Lycaon pictus), spotted (Crocuta crocuta) and brown hyaenas (Parahyaena brunnea), have been reintroduced to 16 private- and state-owned reserves in the Eastern Cape Province, South Africa. Objectives behind these reintroductions ranged from ecotourism, ecological restoration, to species conservation. We reassessed the reintroductions' objectives and updated their outcomes a decade after the initial assessment. Ecotourism and ecological restoration were the most common objectives for the reintroduction of top predators to these reserves. With one exception, these reintroductions were successful in meeting their specific objectives, as only African wild dogs have failed to re-establish in the province. Assessments for leopards and brown hyaenas were inconclusive due to a lack of monitoring data. Causes of objective- and species-specific failures in some reserves included founding same-sex populations, lack of breeding events and changes in reserve management objectives. Long-term monitoring is essential in managing and assessing the success of conservation actions, including reintroductions of threatened species. Our review demonstrates this by highlighting changed outcomes for populations and identifying new challenges that have arisen in the landscape. In the modern parlance of conservation marketing, the multi-species reintroductions that occurred within the Eastern Cape represent successful rewilding within the province.
大型(>15公斤)食肉动物,即狮子(Panthera leo)、豹子(Panthera pardus)、猎豹(Acinonyx jubatus)、非洲野狗(Lycaon pictus)、斑点(Crocuta Crocuta)和棕色鬣蜥(Parahyaena brunea),已被重新引入南非东开普省的16个私人和国有保护区。这些重新引入的目标包括生态旅游、生态恢复和物种保护。我们重新评估了重新引入的目标,并在初步评估十年后更新了结果。生态旅游和生态恢复是将顶级捕食者重新引入这些保护区的最常见目标。除了一个例外,这些重新引入成功地实现了其特定目标,因为只有非洲野狗未能在该省重新建立。由于缺乏监测数据,对豹子和棕色鬣蜥的评估没有结论。一些保护区目标和物种特定失败的原因包括建立同性种群、缺乏繁殖活动以及保护区管理目标的变化。长期监测对于管理和评估保护行动的成功至关重要,包括重新引入受威胁物种。我们的审查通过强调人口变化的结果和确定景观中出现的新挑战来证明这一点。用保护营销的现代说法来说,东开普省境内发生的多物种重新引入代表着该省的成功重建。
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引用次数: 5
Conflict Over Wildlife Conservation in the Mbire District, Northern Zimbabwe 津巴布韦北部Mbire地区野生动物保护的冲突
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-11-14 DOI: 10.3957/056.049.0137
Vincent Jani, A. D. Wit, N. Webb
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引用次数: 4
Common Eland (Tragelaphus oryx) Population Trends in the Ukhahlamba-Drakensberg Park and Surrounds, South Africa, between 1942 and 2018 1942年至2018年南非尤哈兰巴-德拉肯斯堡公园及其周边地区的公共土地(大羚羊)人口趋势
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-10-29 DOI: 10.3957/056.049.0121
T. Patel, T. O’Connor, F. Parrini, S. Krüger
Management of protected areas requires an understanding of the long-term population trends of large mammal species that may influence ecosystem functioning. Common eland (Tragelaphus oryx) are the most abundant large mammal species in the uKhahlamba-Drakensberg Park. Aerial and ground surveys have been conducted over the years to monitor the common eland population. This study addressed long-term trends in population size, structure, distribution and mortality of the common eland between 1942 and 2018, examining changes in relation to climate, natural impacts, management, and efficacy of surveys. The common eland population in the Drakensberg remained relatively stable from 1942 to 1982, then increased between 1983 and 1990. However, a continuous decline was observed between 2003 and 2018 concomitant with a 37% reduction in distribution range within the Park. Adults constituted 59.4% of the population over the entire period, while subadults and calves accounted for 19.1% and 18.8%, respectively, with the remaining 2.7% of unknown ages. The ratio of adults: subadults: calves was 1: 0.32: 0.32 and males: females was 1: 3.63, indicating a skewed sex ratio and a low number of juveniles in the population. Human activities had a substantial impact on the population, with 30.3% of mortalities attributed to poaching. However, permitted offtakes of an unknown number may be the most important cause of mortality. Increased movement of eland onto farmlands outside of the protected area appears to have contributed to a decline in their distribution within the Park in recent years; however, this does not affect population trend since those on farmland are still included in counts. There is no cause for concern regarding the population trend at present; however, if the observed population decline continues well beyond the population numbers recorded in 1942, then there is cause for a management response by Ezemvelo KwaZulu-Natal Wildlife for the common eland population in the Drakensberg.
保护区的管理需要了解可能影响生态系统功能的大型哺乳动物物种的长期种群趋势。普通羚羊(Tragelaphus oryx)是uKhahlamba Drakensberg公园中数量最多的大型哺乳动物。多年来进行了空中和地面调查,以监测常见的陆地人口。这项研究探讨了1942年至2018年间公共土地人口规模、结构、分布和死亡率的长期趋势,考察了与气候、自然影响、管理和调查效果有关的变化。从1942年到1982年,Drakensberg的普通草原人口保持相对稳定,然后在1983年到1990年间增加。然而,在2003年至2018年间,随着公园内分布范围减少37%,观察到了持续的下降。在整个时期,成年人占总人口的59.4%,亚成年人和小牛分别占19.1%和18.8%,其余2.7%的年龄不详。成年:亚成年:小牛的比例为1:0.32:3.32,雄性:雌性为1:3.63,这表明人口中的性别比例扭曲,青少年数量较少。人类活动对人口产生了重大影响,30.3%的死亡归因于偷猎。然而,数量未知的许可出口可能是导致死亡的最重要原因。近年来,越来越多的土地迁移到保护区外的农田,似乎导致了公园内土地分布的下降;然而,这并不影响人口趋势,因为耕地上的人口仍然包括在统计中。目前没有理由对人口趋势感到担忧;然而,如果观察到的种群数量持续下降,远远超过1942年记录的种群数量,那么Ezemvelo KwaZulu Natal野生动物有理由对Drakensberg的普通陆地种群做出管理回应。
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引用次数: 1
A Novel Technique for Artificial Pack Formation in African Wild Dogs Using Odour Familiarity 一种利用气味熟悉度的非洲野狗人工组队新技术
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-10-28 DOI: 10.3957/056.049.0116
C. Marneweck, A. Marchal, David G. Marneweck, Grant Beverley, H. Davies-Mostert, D. Parker
Wildlife ACT Fund, Land Rover Centurion, Richard Bosman, Investec, Vaughan de la Harpe, Q20, and Jaguar Land Rover South Africa.
野生动物行动基金,路虎百夫长,理查德博斯曼,天达,Vaughan de la Harpe, Q20和捷豹路虎南非。
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引用次数: 4
Using Camera Traps to Generate a Species Inventory for Medium-Sized and Large Mammals in South West Zimbabwe 使用相机陷阱生成津巴布韦西南部中型和大型哺乳动物的物种清单
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-09-03 DOI: 10.3957/056.049.0089
Rebecca J. Welch, Tanith Grant, D. Parker
We investigated the presence of medium-sized and large mammals utilizing by-catch data from a camera trapping survey in the Mangwe District in South West Zimbabwe, an unprotected commercial livestock farming area which is impacted by human encroachment, poaching and trophy hunting. The camera trapping survey was carried out from 23 October to 5 December 2009, covered an area of 200 km2 and was initially intended to estimate the population density of leopards (Panthera pardus). The study area was split into two contiguous subsections, with each section sampled for a total of 20 days using 20 cameras. Camera trap photographs were identified to species level, then compared to a list of species thought to occur in the area according to available literature, as well as sightings from professional hunters and local landowners. Twenty-seven out of 38 medium-sized and large mammals thought to occur in the area were photographed. After 26 survey days (day six in section two), all ungulate species present in the area were photographed. However, the more elusive and less common carnivore species were not all recorded during the study. Both spotted (Crocuta crocuta) and brown hyaenas (Parahyaena brunnea) were once thought to be locally extinct or transient in the area but our results demonstrate that they may now be resident. Species inventories are useful to record species presence, particularly in data-poor areas where limited information exists. In areas where trophy hunting and poaching are high, like the Mangwe District, such information is critical to carefully monitor populations and allow for assessment of future management interventions.
我们利用津巴布韦西南部曼圭区摄像机捕捉调查的副渔获物数据,调查了中型和大型哺乳动物的存在。曼圭区是一个未受保护的商业畜牧区,受到人类入侵、偷猎和战利品狩猎的影响。相机捕捉调查于2009年10月23日至12月5日进行,覆盖面积为200平方公里,最初旨在估计豹子(Panthera pardus)的种群密度。研究区域被分为两个连续的部分,每个部分使用20台相机进行为期20天的采样。相机捕捉到的照片被确定为物种级别,然后根据现有文献以及专业猎人和当地土地所有者的目击事件,与该地区可能出现的物种列表进行比较。据信,该地区38种中型和大型哺乳动物中有27种被拍下了照片。调查26天后(第二节第六天),对该地区所有有蹄类物种进行了拍照。然而,更难以捉摸和不太常见的食肉动物物种并没有在研究期间全部记录下来。斑点(Crocuta Crocuta)和棕色鬣蜥(Parahyaena brunea)都曾被认为在该地区局部灭绝或短暂存在,但我们的研究结果表明,它们现在可能是居民。物种清单有助于记录物种的存在,特别是在信息有限的数据贫乏地区。在战利品狩猎和偷猎猖獗的地区,如曼圭区,这些信息对于仔细监测种群数量和评估未来的管理干预措施至关重要。
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引用次数: 3
Insights into the Genetic Population Structure of Black-Backed Jackal and Caracal in South Africa 南非黑背豺和野猫遗传种群结构的研究
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-06-14 DOI: 10.3957/056.049.0084
L. Tensen, M. Drouilly, B. J. Vuuren
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引用次数: 5
Carcass Composition and Yields of Wild Fallow Deer (Dama dama) in South Africa 南非野生小鹿(Dama Dama)的胴体组成和产量
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2019-01-01 DOI: 10.3957/056.049.0100
Leon Brett Fitzhenry, D. Cawthorn, V. Muchenje, D. Bureš, R. Kotrba, L. Hoffman
Although wild fallow deer (Dama dama) are abundant in South Africa, they remain overlooked as a potential protein source and little is known about their carcass production potential. Our study aimed to determine the carcass characteristics, meat yields and offal contributions of fallow deer harvested in South Africa, as well as the effect of sex thereupon. Slaughter weights, warm carcass weights and cold carcass weights were higher in male (n = 8) fallow deer versus females (n = 14), and in pregnant females (n = 5) compared to non-pregnant females (n = 9). Similarly, dressing percentages were higher in males (62%) than females (59%), but were comparable to, or surpassed, those of other African game species and domestic livestock. Consumable offal (excluding stomach and intestines) contributed 10% and 9% to the slaughter weights of males and females, respectively, with some significant sex and pregnancy effects on certain offal components. The individual weights of seven muscles (longissimus thoracis et lumborum, infraspinatus, supraspinatus, biceps femoris, semimembranosus, semitendinosus, psoas major) did not differ between males and females. However, male fallow deer had significantly higher total meat and bone weights than females even though no differences were observed for the meat-to-bone ratios between males and females. These baseline data should provide the impetus for increased utilization of fallow deer by the South African game meat industry and strengthen the contribution of these animals to domestic food security.
尽管南非有大量的野生黇鹿(Dama Dama),但它们作为一种潜在的蛋白质来源仍然被忽视,人们对它们的胴体生产潜力知之甚少。我们的研究旨在确定在南非收获的休鹿的胴体特征、肉产量和内脏贡献,以及性别对其的影响。雄休鹿(n = 8)的屠宰重、热胴体重和冷胴体重高于母休鹿(n = 14),怀孕母休鹿(n = 5)的屠宰重高于未怀孕母休鹿(n = 9)。同样,雄休鹿的屠宰率(62%)高于母休鹿(59%),但与其他非洲野生动物和家畜的屠宰率相当或超过。消耗性内脏(不含胃和肠)分别占公母肉鸡屠宰重的10%和9%,对某些内脏成分有显著的性别和妊娠影响。7块肌肉(胸腰最长肌、冈下肌、冈上肌、股二头肌、半膜肌、半腱肌、大腰肌)的个体重量在男女之间没有差异。然而,雄鹿的总肉重和骨重显著高于雌鹿,尽管雄鹿和雌鹿的肉骨比没有差异。这些基线数据应为南非野味肉类工业增加对黇鹿的利用提供动力,并加强这些动物对国内粮食安全的贡献。
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引用次数: 4
Phasing Out of the Printed Version of the African Journal of Wildlife Research 逐步淘汰印刷版的《非洲野生动物研究杂志》
IF 0.9 4区 环境科学与生态学 Q2 Agricultural and Biological Sciences Pub Date : 2018-10-01 DOI: 10.3957/056.048.021001
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引用次数: 0
期刊
African Journal of Wildlife Research
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