在喀麦隆南部Campo-Ma 'an,人类主导的景观中,水果供应影响森林大象栖息地的利用

IF 1.7 4区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION
I. B. Djoko, R. Weladji, A. Granados, Patrick Paré, G. Body
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引用次数: 0

摘要

背景和研究目的非洲森林象(Loxodonta cyclotis)处于极度濒危状态,但对影响其资源利用的因素的研究在中非有限。我们评估了水果可用性、土地利用类型和人为活动对Campo-Ma'an技术运营单位(CMTOU)西南部森林大象存在和相对丰度的影响,以更好地了解人类主导系统中大象栖息地的使用情况,并为大象管理策略提供信息。方法我们使用了17个相机捕捉站,并调查了17个样带,以监测森林大象的存在和相对丰度,作为水果可用性、树种丰富度和土地利用类型的函数。我们的研究区域跨越了人类干扰的梯度,包括国家公园(NP)、森林管理单位(FMU)和社区土地(CL)。结果森林象更容易出现在水果供应量和树种丰富度增加的地区。此外,CL中大象存在的可能性高于FMU和NP。大象的相对丰度受到人类活动(如狩猎和伐木)的负面影响。与FMU相比,CL和NP中大象相对丰度与果实有效性之间的关系更强。雨季大象的相对丰度较高。结论不同土地利用类型的森林象栖息地利用受到果实可利用性的正向影响,而人类活动对森林象栖息地的利用产生负向影响。对保护的影响CMTOU有必要继续监测大象对食物供应的反应,以跟踪大象栖息地使用的变化。了解森林大象食用的果树的分布情况,可以让管理者预测栖息地使用的热点,从而制定有效的管理策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fruit Availability Influences Forest Elephant Habitat Use in a Human Dominated Landscape, Campo-Ma’an, Southern Cameroon
Background and Research Aim African forest elephants (Loxodonta cyclotis) are critically endangered yet research on factors influencing their resource use is limited in Central Africa. We assessed the influence of fruit availability, land use types, and anthropogenic activity on forest elephant presence and relative abundance in the southwest part of the Campo-Ma’an Technical Operational Unit (CMTOU) to better understand elephant habitat use in human dominated systems and inform elephant management strategies. Methods We used 17 camera trap stations and surveyed 17 line transects to monitor forest elephant presence and relative abundance as a function of fruit availability, tree species richness, and land use types. Our study area spanned a gradient of human disturbance and included a National Park (NP), Forest Management Unit (FMU), and Community Land (CL). Results Forest elephants were more likely to occur in areas with increased fruit availability and tree species richness. Also, the likelihood of their presence was higher in CL than in FMU and NP. Elephant relative abundance was negatively affected by human activities such as hunting and logging. The relationship between elephant relative abundance and fruit availability was stronger in CL and NP as compared to the FMU. Elephant relative abundance was higher during the rainy season. Conclusion Forest elephant habitat use was positively affected by fruit availability across land use types, and negatively affected by human activities in the southwest part of the CMTOU. Implications for Conservation Continued monitoring of elephant responses to food availability in CMTOU is warranted to track changes in elephant habitat use. Knowledge of the distribution of fruiting trees consumed by forest elephants may allow managers to predict hotspots of habitat use, and to therefore develop effective management strategies.
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来源期刊
Tropical Conservation Science
Tropical Conservation Science BIODIVERSITY CONSERVATION-
CiteScore
3.60
自引率
5.90%
发文量
16
审稿时长
>12 weeks
期刊介绍: Tropical Conservation Science is a peer-reviewed, open access journal that publishes original research papers and state-of-the-art reviews of broad interest to the field of conservation of tropical forests and of other tropical ecosystems.
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