Population abundance gradient of Inurois punctigera along altitude.
Population abundance gradient of Inurois punctigera along altitude.
复制标题
Inurois punctigera 沿海拔的种群丰度梯度。
DOI：
10.1111/ens.12392
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发表时间：
2020
影响因子：
0.9
通讯作者：
Matsuhisa S
中科院分区：
文献类型：
--
作者：
Yamamoto S;Matsuhisa S
冬季尺蠖蛾，Inurois punctigera，在日本寒冷地区显示同域和遗传隔离的季节性种群（即早冬和晚冬种群），而在温暖地区仅显示仲冬种群。成虫飞行物候在大地理尺度上沿着纬度环境梯度的变化已被描述，但在更局部尺度上沿着海拔环境梯度的物候变化尚未被描述。在本研究中，我们评估了飞行物候在高海拔和低海拔地区的山。Rokko，兵库县，日本首先，我们发现，即使在高海拔地区（>660米），冬季中期的飞行期也没有中断，但高海拔地区的种群丰度远低于低海拔地区。然后，在接下来的两个赛季，我们调查了我。punctigeraabundance，冬季严酷（即冬季温度）和它们的寄主植物丰富度在9个紧密定位站在山。洛科广义线性混合模型分析表明冬季温度对I. punctigeraabundance相比，可利用的食物资源，这表明在冬季严酷海拔之间的差异形状的梯度。沿着海拔高度点状分布。我们的研究结果表明，冬季的恶劣条件作为选择剂对仲冬类型的I。punctigera，这可能涉及同域的早冬和晚冬种群之间的分歧。点。
A winter geometrid moth,Inurois punctigera, shows sympatric and genetically isolated seasonal populations (i.e. early‐ and late‐winter populations) in the cold regions of Japan, whereas it shows only mid‐winter populations in the warm regions. Variation in adult flight phenology on a large geographic scale along latitudinal environmental gradients has been described, but the phenological variation on a more local scale along altitudinal environmental gradients has not yet been characterized. In the present study, we assessed the flight phenology at high‐ and low‐elevation areas in Mt. Rokko, Hyogo, Japan. First, we revealed that flight period was not disrupted in mid‐winter, even at high‐elevation areas (>660 m) but the population abundance was much lower in high‐elevation areas than in low‐elevation areas. Then, in the following two seasons, we investigatedI. punctigeraabundance, winter harshness (i.e. winter temperature) and their host plant abundance in nine closely located stations in Mt. Rokko. A generalized linear mixed model analysis indicated a greater effect of winter temperature onI. punctigeraabundance compared to available food resources, suggesting that differences in winter harshness among elevation shapes the gradient ofI. punctigeraabundance along altitude. Our findings suggest that harsh conditions during winter function as selective agents on mid‐winter types ofI. punctigera, and this could be involved in the divergence between sympatric early‐ and late‐winter populations ofI. punctigera.