Diel niche variation in mammalian declines in the Anthropocene.
Diel niche variation in mammalian declines in the Anthropocene.
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DOI：
10.1038/s41598-023-28104-2
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发表时间：
2023-01-19
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
世界范围内的生物多样性正在受到侵蚀。人类的许多压力在一天中的某一特定时段发挥得最为有力或影响最大。因此，当物种处于身体活动状态时（它们的生态位）可能会影响它们种群减少的风险。我们根据5032种现存陆生哺乳动物的主要活动模式（夜间活动、黄昏活动、夜间活动和白天活动）对其进行分组，并确定了不同昼夜生态位的种群下降变化。结果表明，与夜行性（40.1%）、黄昏性（39.1%）和夜行性（43.0%）的物种相比，夜行性（52.1%）的物种数量下降的风险更高，且与灵长类动物比例较大有关。与主要在夜间活动的物种相比，那些种群数量下降、活动主要与人类活动一致的物种（花状、白天）面临更多的人为威胁，白天活动的物种更有可能因采伐而减少。在大部分陆地表面栖息地的丧失是人口减少的主要原因，然而，采伐对撒哈拉以南非洲和亚洲热带大陆的日间活动物种构成了更大的威胁，与大型动物和树栖觅食动物的减少有关。加深对人为压力和由此导致的种群减少的昼夜变化的了解将有助于采取有针对性的保护行动。
Biodiversity is being eroded worldwide. Many human pressures are most forcefully exerted or have greatest effect during a particular period of the day. Therefore when species are physically active (their diel niche) may influence their risk of population decline. We grouped 5032 terrestrial extant mammals by their dominant activity pattern (nocturnal, crepuscular, cathemeral and diurnal), and determine variation in population decline across diel niches. We find an increased risk of population decline in diurnal (52.1% of species), compared to nocturnal (40.1% of species), crepuscular (39.1% of species) and cathemeral (43.0% of species) species, associated with the larger proportion of diurnal mammals that are primates. Those species with declining populations whose activity predominantly coincides with that of humans (cathemeral, diurnal) face an increased number of anthropogenic threats than those principally active at night, with diurnal species more likely to be declining from harvesting. Across much of the land surface habitat loss is the predominant driver of population decline, however, harvesting is a greater threat to day-active species in sub-Saharan Africa and mainland tropical Asia, associated with declines in megafauna and arboreal foragers. Deepening understanding of diel variation in anthropogenic pressures and resulting population declines will help target conservation actions.
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影响因子：
3.3
作者：
Forbes BC;Kumpula T;Meschtyb N;Laptander R;Macias-Fauria M;Zetterberg P;Verdonen M;Skarin A;Kim KY;Boisvert LN;Stroeve JC;Bartsch A
通讯作者：
Bartsch A
影响因子：
10.3
作者：
Brodie, Jedediah F.
通讯作者：
Brodie, Jedediah F.
DOI：
10.1073/pnas.1704949114
发表时间：
2017-07-25
影响因子：
11.1
作者：
Ceballos, Gerardo;Ehrlich, Paul R.;Dirzo, Rodolfo
通讯作者：
Dirzo, Rodolfo
影响因子：
16.6
作者：
Cox DTC;Gardner AS;Gaston KJ
通讯作者：
Gaston KJ
影响因子：
6.1
作者：
Levy, Ofir;Dayan, Tamar;Kronfeld-Schor, Noga
通讯作者：
Kronfeld-Schor, Noga