Journal of Guangxi Normal University(Natural Science Edition) ›› 2022, Vol. 40 ›› Issue (4): 199-204.doi: 10.16088/j.issn.1001-6600.2021030503

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Comparison of Seed Removal Behavior of Rodents to Kmeria septentrionalis and Cyclobalanopsis glauca in the Karst Habitat

TANG Chuangbin1,2, DONG Peipei1, HUANG Qiuchan1, TAN Weining3, ZHOU Qihai2,4*, WANG Guohai 1*   

  1. 1. College of Chemistry and Bioengineering, Guangxi Normal University for Nationalities, Chongzuo Guangxi 532200, China;
    2. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education(Guangxi Normal University), Guilin Guangxi 541006, China;
    3. Administrative Bureau of Mulun National Nature Reserve, Huanjiang Guangxi 547100, China;
    4. Guangxi Key Laboratory of Rare and Endangered Animal Ecology (Guangxi Normal University), Guilin Guangxi 541006, China
  • Published:2022-08-05

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Abstract: Seed removal behavior of rodents is of great significance to the regeneration and diffusion of plant population. The seeds of Kmeria septentrionalis and Cyclobalanopsis glauca with different sizes were placed in four karst microhabitats (stone cavern, stone groove, stone surface, and soil surface) from September to October, 2019.The differences of seed removal rate in different microhabitats were compared to explore the effects of karst microhabitat and seed size on rodent removal behavior. The results showed that there was a significant difference in the removal rate between the seeds of K. septentrionalis and C. glauca (Z=-21.902, P<0.001), and rodents preferred to remove the seeds with smaller volume (93.56%±0.99% vs 7.41%±0.65%). The removal rates of K. septentrionalis were significantly different from those of C. glauca in all same microhabitats (P<0.001), and the average seed removal rate in the microhabitats of stone cave (53.41%±3.60%), stone groove (51.31%±3.66%) and stone surface (49.19%±3.59%) were higher than that of soil surface microhabitat (45.37%±3.59%). Microhabitat and seed size are important factors that affect the seed removal of rodents, and the results show that the removal behavior of rodents to plant seeds is the result of the interaction of karst microhabitat and seed size.

Key words: Kmeria septentrionalis, Cyclobalanopsis glauca, seed removal, rodents, sympatry, karst microhabitat

CLC Number: 

  • Q948.122.5
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