Habitat Characteristics of 3 Leporid Species in Southeastern Arizona
Habitat Characteristics of 3 Leporid Species in Southeastern Arizona
复制标题
亚利桑那州东南部 3 种兔科动物的栖息地特征
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
P. Krausman
中科院分区：
文献类型：
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作者：
C. F. Brown;P. Krausman
羚兔(Lepus Alleni)、黑尾兔(Lepus CalforNicus)和沙漠棉尾兔(Sylvilagus Audubonii)是美国西南部的共生地。然而，每个物种是如何利用资源的还没有得到检验。我们量化了1999年5-8月和2000年5-8月在美国亚利桑那州Picacho山脉的这3种Leporid的植被特征和栖息地利用模式。所有Leporid在地上休息的地方都使用类似直径的头顶植被覆盖。与长颈兔相比，沙漠棉尾兔更多地使用更接近地面的茂密植被。沙漠棉尾通常建在三角形叶囊(Ambrosia Deltoidae)和高大植物(>；1.5米)提供保暖覆盖的地区，但很少建在以沼泽为主的地区(Prosopis spp.)或杂色油灌木(Larrea Tridentata)。杰克兔主要在麦斯奎特和杂酚油占主导地位的地区建造形态。景观管理者应该考虑改变的植被(即通过牲畜分配管理计划)如何能够偏爱一种盲目动物而不是其他动物。
Antelope jackrabbits (Lepus alleni), black-tailed jackrabbits (Lepus californicus), and desert cottontails (Sylvilagus audubonii) are sympatric in the southwestern United States. However, how each species uses resources has not been examined. We quantified vegetation characteristics and patterns of habitat use by these 3 species of leporids in the Picacho Mountains, Arizona, USA, May-August 1999 and 2000. All leporids used similar diameters of overhead vegetation cover for above-ground resting sites. Desert cottontails used dense vegetation that was closer to the ground more often thanjackrabbits. Desert cottontails typically built forms in areas with triangle-leaf bursage (Ambrosia deltoidea) and tall plants (>1.5 m) that provided thermal cover but rarely built in areas dominated by mesquite (Prosopis spp.) or creosote bush (Larrea tridentata). Jackrabbits built forms predominantly in mesquite-and creosote-dominated areas. Landscape managers should consider how altered vegetation (i.e., through livestock allotment management plans) can favor 1 leporid species over others.