Occurrence dynamics of mammals in protected tropical forests respond to human presence and activities

Occurrence dynamics of mammals in protected tropical forests respond to human presence and activities
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受保护热带森林中哺乳动物的出现动态对人类存在和活动的响应

DOI:
10.1038/s41559-023-02060-6
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发表时间:
2023
影响因子:
16.8
通讯作者:
Jansen, Patrick A.
Jansen, Patrick A.
中科院分区:
生物学1区
文献类型:
--
作者:
Semper-Pascual, Asunción;Sheil, Douglas;Beaudrot, Lydia;Dupont, Pierre;Dey, Soumen;Ahumada, Jorge;Akampurira, Emmanuel;Bitariho, Robert;Espinosa, Santiago;Jansen, Patrick A.

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保护区(PA)在野生动物保护中发挥着至关重要的作用。尽管如此,有关注和不确定性,如何以及在什么样的空间尺度人为压力影响发生动态的野生动物种群内保护区。在这里,我们评估了人为压力源如何影响来自三个生物地理区域的16个热带保护区中159种哺乳动物的发生动态。我们量化了物种组(栖息地专家和通才)和个别物种的这些关系。我们使用了长期的相机陷阱数据(1,002个站点),并拟合了贝叶斯动态多物种占用模型来估计局部殖民化(以前空的站点被殖民化的概率)和局部生存率(已占用站点仍然被占用的概率)。多个协变量在当地规模和景观规模影响哺乳动物的发生动态,虽然物种群体之间的反应不同。殖民地的专家增加了当地规模的森林覆盖率时,森林规模的碎片化程度低。多面手的生存概率是较高的边缘附近比在PA的核心时,规模的人口密度低,但发生相反的人口密度高。我们的结论是,哺乳动物的发生动态的影响,人为的压力作用在多个尺度,包括外PA本身。
Protected areas (PAs) play a vital role in wildlife conservation. Nonetheless there is concern and uncertainty regarding how and at what spatial scales anthropogenic stressors influence the occurrence dynamics of wildlife populations inside PAs. Here we assessed how anthropogenic stressors influence occurrence dynamics of 159 mammal species in 16 tropical PAs from three biogeographic regions. We quantified these relationships for species groups (habitat specialists and generalists) and individual species. We used long-term camera-trap data (1,002 sites) and fitted Bayesian dynamic multispecies occupancy models to estimate local colonization (the probability that a previously empty site is colonized) and local survival (the probability that an occupied site remains occupied). Multiple covariates at both the local scale and landscape scale influenced mammal occurrence dynamics, although responses differed among species groups. Colonization by specialists increased with local-scale forest cover when landscape-scale fragmentation was low. Survival probability of generalists was higher near the edge than in the core of the PA when landscape-scale human population density was low but the opposite occurred when population density was high. We conclude that mammal occurrence dynamics are impacted by anthropogenic stressors acting at multiple scales including outside the PA itself.
栖息地数量和栖息地破碎化如何驱动生物多样性对土地利用变化的时滞响应?
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