Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns

doi:10.1038/srep37520

	Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns
	Xia, Ke 1,2; Harrower, William L.3,4; Turkington, Roy 3,4; Tan, Hong-Yu 5; Zhou, Zhe-Kun2,6
	2016-11-22
发表期刊	SCIENTIFIC REPORTS
卷号	6 期号:1 页码:1
摘要	We investigated how pre-dispersal strategies may mitigate the effects of weevil infestation of acorns in a population of Quercus schottkyana, a dominant oak in Asian evergreen broad-leaved forests, and assess if weevil infestation contributes to low seedling recruitment. We counted the number of acorns produced, daily from the end of August to mid-late November for 9 years from 2006-2014. We also recorded the rate of acorn infestation by weevils and acorn germination rates of weekly collections. Annual acorn production was variable, but particularly low in 2011 and 2013. There was no trade-off between acorn production and acorn dry mass. However, acorns produced later in the season were significantly heavier. For most years: (i) the rate of weevil infestation was negatively density dependent (a greater proportion of acorns died with increased acorn density), (ii) the percentage germination of acorns was positively density dependent (proportionately more acorns germinated with increased density), and (iii) as the season progressed, the percentage of infested acorns declined while germination rates increased. Finally, (iv) maximum acorn production, percentage infestation and percentage germination were asynchronous. Although pre-dispersal mortality is important it is unlikely to be the primary factor leading to low recruitment of oak seedlings.
DOI	10.1038/srep37520
收录类别	SCI
语种	英语
WOS记录号	WOS:000388256100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/33670
专题	中国西南野生生物种质资源库
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 3.Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada 4.Univ British Columbia, Biodivers Res Ctr, Vancouver, BC V6T 1Z4, Canada 5.Quicken Loans Inc, Detroit, MI 48226 USA 6.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Xia, Ke,Harrower, William L.,Turkington, Roy,et al. Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns[J]. SCIENTIFIC REPORTS,2016,6(1):1.
APA	Xia, Ke,Harrower, William L.,Turkington, Roy,Tan, Hong-Yu,&Zhou, Zhe-Kun.(2016).Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns.SCIENTIFIC REPORTS,6(1),1.
MLA	Xia, Ke,et al."Pre-dispersal strategies by Quercus schottkyana to mitigate the effects of weevil infestation of acorns".SCIENTIFIC REPORTS 6.1(2016):1.

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