兽类学报2017，Vol.37Issue(2)：124-130,7.DOI:10.16829/j.slxb.201702002
红松结实量与松果可利用量对松鼠和花鼠贮食行为的影响
The impacts of Korean pine cone production and availability on hoarding behaviors of squirrels (Sciurus vulgaris) and chipmunks (Eutamias sibiricus)
摘要
Abstract
Plants increase the efficiency of seed dispersal by hoarding animals by producing large seed amounts at intervals of several years,however artificially picking seeds decreased the food availability and had impacts on hoarding behaviors and population dynamics of animals.To probe the impacts of cone-picking on cone availability and behaviors of the main hoarding animals in Korean pine forest,based on the cone production and picking amount of Heilongjiang Liangshui National Nature Reserve during 2003-2012,we investigated changes of cache size and depth;cache density;the number of squirrels in mast and non-mast years;population sizes of squirrels and chipmunks;and larder-hoarding seed amounts in chipmunk caves in 2010 and 2011.The results showed that:(1) compared with non-mast years,the average cache size,density and number of squirrels were significantly larger in mast years;(2) cone availability was lower in some mast years because the picking proportion was higher than non-mast years,such as 2011.Cone production of Korean pine in 2011 was highest,but hoarding density of squirrels was lower than another two mast years,2003 and 2008,and the encounter rate was lowest;(3) however the population density and pine seed amount in chipmunk caves was not significantly different between 2010 and 2011.Our research indicated that the increase of picking proportion decreased cone availability and had obvious impacts on the hoarding behavior of squirrels.Nature Reserves should wisely determine the picking amount of Korean pine cone,especially in mast years,to ensure the food abundance of hoarding animals and maintain the health of Korean pine ecosystem.关键词
红松/球果采摘/结实量/可利用量/松鼠/花鼠/贮食行为Key words
Availability/Cone picking/Cone production/Eutamias sibiricus/Hoarding behavior/Pinus koraiensis/Sciurus vulgaris分类
生物科学引用本文复制引用
高红梅,梅索南措,戎可,马建章,宗诚..红松结实量与松果可利用量对松鼠和花鼠贮食行为的影响[J].兽类学报,2017,37(2):124-130,7.基金项目
教育部中央高校基础科研业务费科研专项(DL12CA15) （DL12CA15）
西藏大学农牧学院柔性人才引进项目 （）
