气候变化领域集成服务门户(CCPortal): The population ecology of male gametophytes: The link between pollination and seed production

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DOI	10.1111/ele.12596
	The population ecology of male gametophytes: The link between pollination and seed production
	Harder L.D.; Aizen M.A.; Richards S.A.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:5
英文摘要	The fate of male gametophytes after pollen reaches stigmas links pollination to ovule fertilisation, governing subsequent siring success and seed production. Although male gametophyte performance primarily involves cellular processes, an ecological analogy may expose insights into the nature and implications of male gametophyte success. We elaborate this analogy theoretically and present empirical examples that illustrate associated insights. Specifically, we consider pollen loads on stigmas as localised populations subject to density-independent mortality and density-dependent processes as they traverse complex stylar environments. Different combinations of the timing of pollen-tube access to limiting stylar resources (simultaneous or sequential), the tube distribution among resources (repulsed or random) and the timing of density-independent mortality relative to competition (before or after) create signature relations of mean pollen-tube success and its variation among pistils to pollen receipt. Using novel nonlinear regression analyses (two-moment regression), we illustrate contrasting relations for two species, demonstrating that variety in these relations is a feature of reproductive diversity among angiosperms, rather than merely a theoretical curiosity. Thus, the details of male gametophyte ecology should shape sporophyte reproductive success and hence the dynamics and structure of angiosperm populations. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Density independence; Facilitation; Pollen tube; Pollination; Resource competition; Style morphology; Two-moment regression
学科领域	gametophyte; male; morphology; pollination; population dynamics; population ecology; reproductive success; seed production; sporophyte; Magnoliophyta; angiosperm; biological model; ecology; flower; physiology; plant seed; pollen; pollination; reproduction; Angiosperms; Ecology; Flowers; Models, Biological; Pollen; Pollination; Reproduction; Seeds
语种	英语
scopus关键词	gametophyte; male; morphology; pollination; population dynamics; population ecology; reproductive success; seed production; sporophyte; Magnoliophyta; angiosperm; biological model; ecology; flower; physiology; plant seed; pollen; pollination; reproduction; Angiosperms; Ecology; Flowers; Models, Biological; Pollen; Pollination; Reproduction; Seeds
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118552
作者单位	Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada; Laboratorio Ecotono, INIBIOMA-CONICET and Centro Regional Bariloche, Universidad Nacional del Comahue, Quintral 1250, Bariloche, Río Negro, 8400, Argentina; School of Biological and Biomedical Sciences, Durham University, South Road, Durham, DH1 3LE, United Kingdom; CSIRO Oceans and Atmosphere, P.O. Box 1538, Hobart, TAS 7001, Australia
推荐引用方式 GB/T 7714	Harder L.D.,Aizen M.A.,Richards S.A.. The population ecology of male gametophytes: The link between pollination and seed production[J],2016,19(5).
APA	Harder L.D.,Aizen M.A.,&Richards S.A..(2016).The population ecology of male gametophytes: The link between pollination and seed production.Ecology Letters,19(5).
MLA	Harder L.D.,et al."The population ecology of male gametophytes: The link between pollination and seed production".Ecology Letters 19.5(2016).