The prevention and control of invasive of alien species is an important work for nature reserves.This study analyzes the development trend of the alien species sika deer in Liancheng National Nature Reserve.From Octob...The prevention and control of invasive of alien species is an important work for nature reserves.This study analyzes the development trend of the alien species sika deer in Liancheng National Nature Reserve.From October 2019 to June 2020,3523 valid photos and videos of terrestrial animals were acquired from 130 camera traps,and sika deer were recorded in 21 photos from 13 traps.The survival of the sika deer population was investigated by means of morphological identification,population structure analysis,species relative abundance indices,and species spatial association analysis.A total of 13 sika deer individuals were identified by camera trapping,including two kids and three subadults representing the reproductive capacity of the population.Spatially,sika deer is not associated with any local species and was outside the spatial association network of terrestrial animals in Liancheng National Nature Reserve,indicating that the sika deer population has not been integrated into the local community and has failed to perform its ecological function.It is worth noting that the reserve provides habitat suitable for sika deer and that the population has adequate reproductive capacity.Due to the lack of large apex predators in the reserve,the population size of ungulates such as sika deer,red deer,and Siberian roe deer may expand and lead to population outbreaks and the associated problems for the ecosystem.To restore large-and medium-sized carnivores and avoid the population outbreak of the species,the present challenges require immediate attention in Liancheng National Nature Reserve.展开更多
矿物质是野生动物食物的重要组成部分,对于个体的生长、繁殖、扩散和种群数量的增长具有重要作用(辛国省,2010;Zhao et al.,2013;曾小琴等,2016)。有蹄类动物在一年中的特定时间段舔食土壤,主要倾向于靠近地下泉水、树木根部附近、与河...矿物质是野生动物食物的重要组成部分,对于个体的生长、繁殖、扩散和种群数量的增长具有重要作用(辛国省,2010;Zhao et al.,2013;曾小琴等,2016)。有蹄类动物在一年中的特定时间段舔食土壤,主要倾向于靠近地下泉水、树木根部附近、与河流接壤的悬崖(Henshaw and Ayeni,1971;Couturier and Barrette,1988),主要表现为湿舔和干舔(Ayotte et al.,2006)。展开更多
基金supported by the National Natural Science Foundation of China(grants 32171545 and 41801220).
文摘The prevention and control of invasive of alien species is an important work for nature reserves.This study analyzes the development trend of the alien species sika deer in Liancheng National Nature Reserve.From October 2019 to June 2020,3523 valid photos and videos of terrestrial animals were acquired from 130 camera traps,and sika deer were recorded in 21 photos from 13 traps.The survival of the sika deer population was investigated by means of morphological identification,population structure analysis,species relative abundance indices,and species spatial association analysis.A total of 13 sika deer individuals were identified by camera trapping,including two kids and three subadults representing the reproductive capacity of the population.Spatially,sika deer is not associated with any local species and was outside the spatial association network of terrestrial animals in Liancheng National Nature Reserve,indicating that the sika deer population has not been integrated into the local community and has failed to perform its ecological function.It is worth noting that the reserve provides habitat suitable for sika deer and that the population has adequate reproductive capacity.Due to the lack of large apex predators in the reserve,the population size of ungulates such as sika deer,red deer,and Siberian roe deer may expand and lead to population outbreaks and the associated problems for the ecosystem.To restore large-and medium-sized carnivores and avoid the population outbreak of the species,the present challenges require immediate attention in Liancheng National Nature Reserve.
文摘矿物质是野生动物食物的重要组成部分,对于个体的生长、繁殖、扩散和种群数量的增长具有重要作用(辛国省,2010;Zhao et al.,2013;曾小琴等,2016)。有蹄类动物在一年中的特定时间段舔食土壤,主要倾向于靠近地下泉水、树木根部附近、与河流接壤的悬崖(Henshaw and Ayeni,1971;Couturier and Barrette,1988),主要表现为湿舔和干舔(Ayotte et al.,2006)。
