Space use by Callosciurus erythraeus in a fragmented landscape

IF 0.8 4区 生物学 Q3 ZOOLOGY
M. Guichón, V. Benitez, A. Gozzi, S. Doyle, G. Cassini
{"title":"Space use by Callosciurus erythraeus in a fragmented landscape","authors":"M. Guichón, V. Benitez, A. Gozzi, S. Doyle, G. Cassini","doi":"10.1515/mammalia-2022-0110","DOIUrl":null,"url":null,"abstract":"Abstract Tree squirrel species that are successful invaders may modify their behaviour according to the characteristics of the invaded community. We studied the use of space by Callosciurus erythraeus in the main invasion focus established in Argentina, where suitable habitat is highly fragmented and immersed in a rural–urban landscape of the Pampas region. We evaluated habitat use in relation to the dominant arboreal vegetation (evergreen vs. deciduous) based on seasonal trapping data throughout two years and home range size and overlap based on seasonal radio-tracking data in two consecutive years. We captured 476 squirrels with a higher trapping success in areas dominated by evergreen vegetation. Effective home ranges were smaller for females (0.10–0.77 ha, n = 12) than for males (0.9–3.78 ha, n = 3). We observed home range overlap between and within both sexes, suggesting no or low territoriality. Our results support the two working hypotheses on the relatively higher use of areas dominated by evergreen vegetation and on the relatively small home range sizes and large overlapping areas associated to high squirrel density. The flexibility in the use of different type of arboreal patches would be another attribute linked to the invasion success of this species.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":"380 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mammalia","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1515/mammalia-2022-0110","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract Tree squirrel species that are successful invaders may modify their behaviour according to the characteristics of the invaded community. We studied the use of space by Callosciurus erythraeus in the main invasion focus established in Argentina, where suitable habitat is highly fragmented and immersed in a rural–urban landscape of the Pampas region. We evaluated habitat use in relation to the dominant arboreal vegetation (evergreen vs. deciduous) based on seasonal trapping data throughout two years and home range size and overlap based on seasonal radio-tracking data in two consecutive years. We captured 476 squirrels with a higher trapping success in areas dominated by evergreen vegetation. Effective home ranges were smaller for females (0.10–0.77 ha, n = 12) than for males (0.9–3.78 ha, n = 3). We observed home range overlap between and within both sexes, suggesting no or low territoriality. Our results support the two working hypotheses on the relatively higher use of areas dominated by evergreen vegetation and on the relatively small home range sizes and large overlapping areas associated to high squirrel density. The flexibility in the use of different type of arboreal patches would be another attribute linked to the invasion success of this species.
赤萼胼胝体在破碎景观中的空间利用
作为成功入侵物种的树松鼠会根据被入侵群落的特点改变其行为。我们研究了红胼胝体对阿根廷主要入侵焦点的空间利用,在那里,适合的栖息地是高度破碎的,沉浸在潘帕斯地区的城乡景观中。基于两年的季节性捕获数据和连续两年的季节性无线电跟踪数据,我们评估了栖息地利用与优势乔木植被(常绿与落叶)的关系。我们在常绿植被为主的地区捕获了476只松鼠,捕获成功率较高。雌性的有效范围(0.10-0.77 ha, n = 12)小于雄性(0.9-3.78 ha, n = 3)。我们观察到两性之间和两性之间的范围重叠,表明没有或低领土性。我们的研究结果支持了两种假设,即松鼠对常绿植被占主导地位的区域的利用相对较高,以及松鼠密度较高的相对较小的活动范围和较大的重叠区域。在使用不同类型的树木斑块方面的灵活性将是与该物种入侵成功相关的另一个属性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Mammalia
Mammalia 生物-动物学
CiteScore
2.20
自引率
10.00%
发文量
68
审稿时长
6-12 weeks
期刊介绍: Mammalia is an international, multidisciplinary, bimonthly journal devoted to the inventory, analysis and interpretation of mammalian diversity. It publishes original results on all aspects of the systematics and biology of mammals with a strong focus on ecology, including biodiversity analyses, distribution habitats, diet, predator-prey relationships, competition, community analyses and conservation of mammals. The journal also accepts submissions on sub-fossil or recently extinct mammals.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信