DOI: 10.1111/ele.12596
Scopus记录号: 2-s2.0-84960467503
论文题名: The population ecology of male gametophytes: The link between pollination and seed production
作者: Harder L.D. ; Aizen M.A. ; Richards S.A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 5 起始页码: 497
结束页码: 509
语种: 英语
英文关键词: Density independence
; Facilitation
; Pollen tube
; Pollination
; Resource competition
; Style morphology
; Two-moment regression
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107764
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biological Sciences, University of Calgary, Calgary, AB, Canada; Laboratorio Ecotono, INIBIOMA-CONICET and Centro Regional Bariloche, Universidad Nacional del Comahue, Quintral 1250, Bariloche, Río Negro, Argentina; School of Biological and Biomedical Sciences, Durham University, South Road, Durham, United Kingdom; CSIRO Oceans and Atmosphere, P.O. Box 1538, Hobart, TAS, Australia
Recommended Citation:
Harder L.D.,Aizen M.A.,Richards S.A.. The population ecology of male gametophytes: The link between pollination and seed production[J]. Ecology Letters,2016-01-01,19(5)