Li Dianwei, Liu Yang, Shan Hongjia, Li Na, Hao Jingwei, Yang Binbin, Peng Ting, Jin Zhimin
College of Life Sciences and Technology, Mudanjiang Normal University, No. 191 Wenhua Road, Mudanjiang, Heilongjiang 157011, China Mudanjiang Normal University Mudanjiang China.
College of Wildlife and Protected Area, Northeast Forestry University, No. 26 Hexing Road, Harbin 150040, China Northeast Forestry University Harbin China.
Zookeys. 2021 Mar 18;1025:73-89. doi: 10.3897/zookeys.1025.60972. eCollection 2021.
To explore the differences in hoarding strategies of rodents for different seeds in various seasons, we labeled and released the seeds of , , and in temperate forests of Northeast China and investigated the fate of the seeds in spring and autumn. The analysis showed that the hoarding strategies of the rodents varied substantially between seasons. The seeds were consumed faster in the spring than in the autumn. More than 50% of the seeds in the two seasons were consumed by the 16 day. It took 36 days to consume 75% of the seeds in the spring and 44 days in the autumn. The rate of consumption of the seeds in the spring was greater than in the autumn, and the rate of spread of the seeds was greater in the autumn. The distances of removal for the consumption and dispersal of seeds in the spring (3.26 ± 3.21 m and 4.15 ± 3.52 m, respectively) were both shorter than those in the autumn (3.74 ± 3.41 m and 4.87 ± 3.94 m, respectively). In addition, the fate of different seeds varied significantly owing to differences in hoarding strategies. The seeds of the three preferred species, , , and , were quickly consumed. More than 90% of the seeds of these species were consumed. Only 21% of seeds were slowly consumed, and the two seasons had the same seed consumption rate patterns: the consumption rate of seeds was the highest, followed by , then , and finally . The median removal times of the two seasons were different, but the rules were the same: was the shortest, followed by , and the third was . In both seasons, the most predated seeds were those of ; the most hoarded seeds were those of , and the most unconsumed seeds were those of .
为探究啮齿动物在不同季节对不同种子的贮藏策略差异，我们在中国东北温带森林中对[种子名称1]、[种子名称2]、[种子名称3]和[种子名称4]的种子进行标记并释放，调查了春秋两季种子的去向。分析表明，啮齿动物的贮藏策略在不同季节间有很大差异。种子在春季的消耗速度比秋季快。两个季节中超过50%的种子在16天内被消耗。春季消耗75%的种子需要36天，秋季则需要44天。种子在春季的消耗速度大于秋季，而种子的传播速度在秋季更快。春季种子用于消耗和扩散的搬运距离（分别为3.26±3.21米和4.15±3.52米）均短于秋季（分别为3.74±3.41米和4.87±3.94米）。此外，由于贮藏策略的差异，不同种子的去向有显著不同。三种偏好物种[种子名称5]、[种子名称6]和[种子名称7]的种子很快被消耗。这些物种超过90%的种子被消耗。只有21%的[种子名称8]种子被缓慢消耗，且两个季节的种子消耗速率模式相同：[种子名称8]种子的消耗速率最高，其次是[种子名称9]，然后是[种子名称10]，最后是[种子名称11]。两个季节的中位搬运时间不同，但规律相同：[种子名称12]最短，其次是[种子名称13]，第三是[种子名称14]。在两个季节中，被捕食最多的[种子名称15]种子是[具体种子种类1]的；贮藏最多的种子是[具体种子种类2]的，未被消耗最多的种子是[具体种子种类3]的。
