Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL 32611, USA.
Environ Manage. 2012 Apr;49(4):846-54. doi: 10.1007/s00267-012-9821-x. Epub 2012 Feb 28.
Private landowners play a pivotal role in determining whether or not rare species persist in regions where privately owned land is extensive. The range of the gopher tortoise (Gopherus polyphemus) is confined to the Southeastern U.S., a region predominantly under private ownership, and thus the status of this species is largely dependent upon land management decisions made by private landowners. We sent an anonymous mail survey to 2,584 individuals to examine factors affecting gopher tortoise occurrence on private lands in Mississippi (adjusted response rate of 23%). Few respondents (19%) reported currently having tortoises on their property, although many had them in the past (30%). Tortoises were persisting primarily on larger properties with longleaf pine that were not managed chiefly for timber production. In general, respondents were largely unaware of habitat requirements of tortoises or effects of various land management practices on them, and few reported using management techniques that benefit tortoises, such as prescribed burning. Most respondents (57%) knew of wildlife incentive programs, but were hesitant to enroll because they did not want to commit to managing their property in a particular manner (34%). We suggest actions that could improve the likelihood of tortoise persistence in this region, as well as changes that could be made to incentive programs to increase landowner participation. These suggestions should be relevant to the conservation of other rare species on private lands in other regions.
私人土地所有者在决定是否在私人土地广泛存在的地区保留稀有物种方面起着关键作用。草原龟(Gopherus polyphemus)的分布范围仅限于美国东南部,该地区主要为私人所有,因此该物种的状况在很大程度上取决于私人土地所有者做出的土地管理决策。我们向 2584 名个人发送了匿名邮件调查,以研究影响密西西比州私人土地上草原龟出现的因素(调整后的回复率为 23%)。很少有受访者(19%)报告说他们目前在自己的财产上有龟,尽管过去很多人都有(30%)。龟主要存在于未主要用于木材生产的具有长叶松的较大土地上。一般来说,受访者对龟的栖息地要求或各种土地管理实践对它们的影响知之甚少,很少有人报告使用有利于龟的管理技术,如规定燃烧。大多数受访者(57%)知道野生动物激励计划,但由于他们不想承诺以特定方式管理自己的财产,因此犹豫不决(34%)。我们提出了一些可以提高该地区龟生存可能性的行动,以及可以对激励计划进行的改变,以增加土地所有者的参与。这些建议应该与其他地区私人土地上其他稀有物种的保护有关。