{"title":"狮子(Panthera leo)在博茨瓦纳奥卡万戈三角洲东部狭长地带的多用途区域运动。","authors":"Eric G LeFlore, Todd K Fuller, Andrew B Stein","doi":"10.1093/jmammal/gyad090","DOIUrl":null,"url":null,"abstract":"<p><p>As global large carnivore populations continue to decline due to human actions, maintaining viable populations beyond protected area (PA) borders is critical. African lions (<i>Panthera leo</i>) ranging beyond PA borders regularly prey on domestic livestock causing humans to retaliate or even preemptively kill lions to minimize impacts of lost livestock. To understand how lions navigate high-conflict areas in human-dominated landscapes, lions were observed and monitored in the eastern Panhandle of the Okavango Delta between October 2014 and December 2016, and five lions were fitted with GPS satellite collars from August 2015 to December 2016. Lion prides and coalitions were small, with all prides having four or fewer females and all coalitions having two or fewer males. Home range size varied between the sexes but was not statistically different (males: <math><mstyle><mrow><mover><mi>x</mi><mo>¯</mo></mover></mrow></mstyle></math> = 584 km<sup>2</sup>, <i>n</i> = 3; females: <math><mstyle><mrow><mover><mi>x</mi><mo>¯</mo></mover></mrow></mstyle></math> = 319 km<sup>2</sup>, <i>n</i> = 2). There was considerable spatial overlap in home ranges as nonassociating, neighboring collared individuals utilized high levels of shared space (female-female overlap = 152 km<sup>2</sup>, representing 41-56% of respective home ranges; male-male overlap = 125-132 km<sup>2</sup>, representing 16-31% of respective home ranges). However, neighboring lions varied use of shared space temporally as evidenced by low coefficients of association (< 0.08), avoiding potentially costly interactions with neighboring individuals. Highest levels of overlap occurred during the wet and early dry seasons when flood waters minimized the amount of available land area. All collared individuals minimized time in close proximity (< 3 km) to human habitation, but some individuals were able to rely heavily on areas where unmonitored livestock grazed. While most lions exist within PAs, anthropogenic impacts beyond PA boundaries can impact critical populations within PAs. Studying systems beyond park boundaries with high levels of human-lion conflict while also establishing conservation programs that account for both ecological and sociocultural dimensions will better aid lion conservation efforts moving forward.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"104 6","pages":"1317-1328"},"PeriodicalIF":1.5000,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10697412/pdf/","citationCount":"0","resultStr":"{\"title\":\"Lion (<i>Panthera leo</i>) movements in a multiuse area of the eastern Panhandle of the Okavango Delta, Botswana.\",\"authors\":\"Eric G LeFlore, Todd K Fuller, Andrew B Stein\",\"doi\":\"10.1093/jmammal/gyad090\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>As global large carnivore populations continue to decline due to human actions, maintaining viable populations beyond protected area (PA) borders is critical. African lions (<i>Panthera leo</i>) ranging beyond PA borders regularly prey on domestic livestock causing humans to retaliate or even preemptively kill lions to minimize impacts of lost livestock. To understand how lions navigate high-conflict areas in human-dominated landscapes, lions were observed and monitored in the eastern Panhandle of the Okavango Delta between October 2014 and December 2016, and five lions were fitted with GPS satellite collars from August 2015 to December 2016. Lion prides and coalitions were small, with all prides having four or fewer females and all coalitions having two or fewer males. Home range size varied between the sexes but was not statistically different (males: <math><mstyle><mrow><mover><mi>x</mi><mo>¯</mo></mover></mrow></mstyle></math> = 584 km<sup>2</sup>, <i>n</i> = 3; females: <math><mstyle><mrow><mover><mi>x</mi><mo>¯</mo></mover></mrow></mstyle></math> = 319 km<sup>2</sup>, <i>n</i> = 2). There was considerable spatial overlap in home ranges as nonassociating, neighboring collared individuals utilized high levels of shared space (female-female overlap = 152 km<sup>2</sup>, representing 41-56% of respective home ranges; male-male overlap = 125-132 km<sup>2</sup>, representing 16-31% of respective home ranges). However, neighboring lions varied use of shared space temporally as evidenced by low coefficients of association (< 0.08), avoiding potentially costly interactions with neighboring individuals. Highest levels of overlap occurred during the wet and early dry seasons when flood waters minimized the amount of available land area. All collared individuals minimized time in close proximity (< 3 km) to human habitation, but some individuals were able to rely heavily on areas where unmonitored livestock grazed. While most lions exist within PAs, anthropogenic impacts beyond PA boundaries can impact critical populations within PAs. Studying systems beyond park boundaries with high levels of human-lion conflict while also establishing conservation programs that account for both ecological and sociocultural dimensions will better aid lion conservation efforts moving forward.</p>\",\"PeriodicalId\":50157,\"journal\":{\"name\":\"Journal of Mammalogy\",\"volume\":\"104 6\",\"pages\":\"1317-1328\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2023-11-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10697412/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mammalogy\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1093/jmammal/gyad090\",\"RegionNum\":3,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2023/12/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"ZOOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mammalogy","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/jmammal/gyad090","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/12/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 0
摘要
由于人类活动导致全球大型食肉动物种群数量持续下降,在保护区边界外维持可存活的种群至关重要。非洲狮(Panthera leo)活动范围超出保护区边界,经常捕食家畜,导致人类报复甚至先发制人地杀死狮子,以尽量减少牲畜损失的影响。为了了解狮子如何在人类主导的高冲突地区导航,研究人员于2014年10月至2016年12月在奥卡万戈三角洲东部狭长地带对狮子进行了观察和监测,并于2015年8月至2016年12月为5头狮子安装了GPS卫星项圈。狮群和狮群规模都很小,所有狮群都有四只或更少的雌性狮群,所有狮群都有两只或更少的雄性狮群。家范围大小在性别之间存在差异,但没有统计学差异(雄性:x¯= 584 km2, n = 3;雌性:x¯= 319 km2, n = 2)。在栖息地范围内存在相当大的空间重叠,因为非关联的相邻项圈个体利用了高水平的共享空间(雌性-雌性重叠= 152 km2,占各自栖息地范围的41-56%;男性-男性重叠= 125-132平方公里,占各自家庭范围的16-31%)。然而,邻近的狮子对共享空间的使用在时间上有所不同,这可以通过低关联系数(< 0.08)来证明,从而避免了与邻近个体之间潜在的昂贵互动。重叠程度最高的是在雨季和旱季早期,此时洪水使可用土地面积最小化。所有戴项圈的个体最大限度地减少了靠近人类居住地(< 3公里)的时间,但一些个体能够在很大程度上依赖于不受监测的牲畜放牧的地区。虽然大多数狮子存在于保护区内,但保护区边界以外的人为影响可能会影响保护区内的临界种群。研究公园边界以外人类与狮子冲突程度高的系统,同时建立兼顾生态和社会文化维度的保护计划,将更好地帮助狮子保护工作向前发展。
Lion (Panthera leo) movements in a multiuse area of the eastern Panhandle of the Okavango Delta, Botswana.
As global large carnivore populations continue to decline due to human actions, maintaining viable populations beyond protected area (PA) borders is critical. African lions (Panthera leo) ranging beyond PA borders regularly prey on domestic livestock causing humans to retaliate or even preemptively kill lions to minimize impacts of lost livestock. To understand how lions navigate high-conflict areas in human-dominated landscapes, lions were observed and monitored in the eastern Panhandle of the Okavango Delta between October 2014 and December 2016, and five lions were fitted with GPS satellite collars from August 2015 to December 2016. Lion prides and coalitions were small, with all prides having four or fewer females and all coalitions having two or fewer males. Home range size varied between the sexes but was not statistically different (males: = 584 km2, n = 3; females: = 319 km2, n = 2). There was considerable spatial overlap in home ranges as nonassociating, neighboring collared individuals utilized high levels of shared space (female-female overlap = 152 km2, representing 41-56% of respective home ranges; male-male overlap = 125-132 km2, representing 16-31% of respective home ranges). However, neighboring lions varied use of shared space temporally as evidenced by low coefficients of association (< 0.08), avoiding potentially costly interactions with neighboring individuals. Highest levels of overlap occurred during the wet and early dry seasons when flood waters minimized the amount of available land area. All collared individuals minimized time in close proximity (< 3 km) to human habitation, but some individuals were able to rely heavily on areas where unmonitored livestock grazed. While most lions exist within PAs, anthropogenic impacts beyond PA boundaries can impact critical populations within PAs. Studying systems beyond park boundaries with high levels of human-lion conflict while also establishing conservation programs that account for both ecological and sociocultural dimensions will better aid lion conservation efforts moving forward.