缙云山常绿阔叶林栲种子产量及形态特征年际动态

doi:10.16843/j.sswc.2023.03.013

Abstract
Figure/Table
References
Related Citation (11)

Download: PDF (1787 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] Seed production and seed morphological traits are two important biological indicators of plant fruiting, reflecting the reproductive potential and adaptability of plants to the environment. The variation of seed production and morphological traits is common in woody plants and affects population dynamics, community species composition, and the maintenance of biodiversity. Thus, the interannual variation of seed production and seed morphological traits of Castanopsis fargesii were analyzed at population and individual levels. On this basis, the reproductive strategy of C. fargesii was discussed, so as to provide a data support for large-scale research on the dynamics of plant fruiting. [Methods] Taking the 23 individuals in 0.50 hm² permanent monitoring plot of evergreen broad-leaved forest in Jinyun Mountain as the research object, we collected the seeds from 2013—2021. First the number of seeds were counted, then seed mass was weighted, seed height and width were measured after being air-dried. Seed production was defined as seed density, then the interannual coefficients of variation of seed production and morphological traits at population-level and individual-level were calculated, respectively. We used generalized linear mixed models to analyze the relationship between seed production and seed morphological traits. [Results] 1) Totally 36 572 mature seeds of C. fargesii were collected during 9 years, and the seed production was 98.30 seeds/(m²·a); The interannual variation of seed production was significant both at population-level and individual-level (P<0.05), among which the production in 2014, 2018 and 2021 were significantly higher than those in other years. 2) The average seed mass was (0.50±0.19) g, and the average coefficient of variation was 0.39. The ratio of height to width was relatively stable between years, the average coefficient of variation was 0.04. The variation of seed mass and H/W ratio of C. fargesii mainly came from inter-individuals, with the average Gini coefficients were 59.16% and 69.77%, respectively. [Conclusions] 1) The seed production of C. fargesii showed clear masting signs, and the interval was about 3-4 years. The reproductive ability of different individuals in the population was quite different. 2) The intraspecific variation of seed mass and H/W ratio of C. fargesii was at a high level, which mainly from the inter-individuals. In addition, the seed mass also differed interannually, and it decreased with the increase of seed production, which suggested that mast-seeding may led to the reduction of seed mass. In contrast, the H/W ratio of seed was relatively stable between years, and had no significant correlation with seed production.

Key words： Castanopsis fargesii seed production interannual dynamics mast seeding reproductive strategy evergreen broad-leaved forest Jinyun Mountain

Received: 24 October 2022

PACS:

S718.54

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	OUYANG Xue
	YANG Yongchuan
	HUANG Li
	ZHOU Lihua
	LONG Yuxiao
	LIU Yufang

Cite this article:

OUYANG Xue,YANG Yongchuan,HUANG Li, et al. Interannual dynamics of seed production and morphological traits of Castanopsis fargesii in evergreen broad-leaved forest of Jinyun Mountain[J]. SSWC, 2023, 21(3): 103-109.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2023.03.013 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2023/V21/I3/103

[1]	WANG B C, SMITH T B. Closing the seed dispersal loop[J]. Trends in Ecology & Evolution, 2002, 17(8): 379.
[2]	PEARSE I S, LAMONTAGNE J M, KOENIG W D. Inter-annual variation in seed production has increased over time (1900—2014)[J]. Proceedings of the Royal Society B-Biological Sciences, 2017, 284: 20171666.
[3]	窦丽娜, 张文富, 邓晓保, 等. 西双版纳望天树林种子雨9年动态[J]. 生物多样性, 2018, 26(9): 919. DOU Lina, ZHANG Wenfu, DENG Xiaobao, et al. Nine-year seed rain dynamics in Parashorea chinensis forest in Xishuangbanna, Southwest China[J]. Biodiversity Science, 2018, 26(9): 919.
[4]	ZWOLAK R, BOGDZIEWICZ M, CRONE E E. On the need to evaluate costs and benefits of synzoochory for plant populations[J]. Journal of Ecology, 2020, 108(5): 1784.
[5]	MINOR D M, KOBE R K. Masting synchrony in northern hardwood forests: Super-producers govern population fruit production[J]. Journal of Ecology, 2017, 105(4): 987.
[6]	BOGDZIEWICZ M, SZYMKOWIAK J, CALAMA R, et al. Does masting scale with plant size? High reproductive variability and low synchrony in small and unproductive individuals[J]. Annals of Botany, 2020, 126(5): 971.
[7]	CAO Lin, WANG Zhenyu, YAN Chuan, et al. Differential foraging preferences on seed size by rodents result in higher dispersal success of medium-sized seeds[J]. Ecology, 2016, 97(11): 3070.
[8]	HUANG Li, JIN Chen, ZHOU Lihua, et al. Benefit versus cost trade-offs of masting across seed-to-seedling transition for a dominant subtropical forest species[J]. Journal of Ecology, 2021, 109(8): 3087.
[9]	田瑞杰, 巩合德, 雷晨雨, 等. 不同种源高山栲种子性状特征及其变异[J]. 中南林业科技大学学报, 2021, 41(9): 88. TIAN Ruijie, GONG Hede, LEI Chenyu, et al. Characteristic and variation in seed traits of Castanopsis delavayi from various provenances[J]. Journal of Central South University of Forestry & Technology, 2021, 41(9): 88.
[10]	李霖. 福建省永安市贡川镇低产丝栗栲次生林特征[J]. 山地学报, 2007(3): 333. LI Lin. Characters of secondary and low productivity forest of Castanopsis fargesii in Gongchuan town, Yongan, Fujian[J]. Mountain Reasearch, 2007(3): 333.
[11]	YANG Yongchuan, HUANG Li, QIAN Shenhua, et al. Completing the life history of Castanopsis fargesii: Changes in the seed dispersal, seedling and sapling recruitment patterns[J]. European Journal of Forest Research, 2015, 134(6): 1143.
[12]	陈艳, 沈浪, 应向阳. 中国大陆青冈分布区东缘大金山岛种群种子形态变异[J]. 广西植物, 2007, 27(4): 555. CHEN Yan, SHEN Lang, YING Xiangyang. Morphological variation of Cyclobalanopsis glauca seeds in Dajinshan Island eastern edge of its distribution in mainland China[J]. Guihaia, 2007, 27(4): 555.
[13]	DU Xiaojun, GUO Qinfeng, GAO Xianming, et al. Seed rain, soil seed bank, seed loss and regeneration of Castanopsis fargesii (Fagaceae) in a subtropical evergreen broad-leaved forest[J]. Forest Ecology and Management, 2007, 238(1-3): 212.
[14]	杜彦君, 马克平. 浙江古田山自然保护区常绿阔叶林种子雨的时空变异[J]. 植物生态学报, 2012, 36(8): 717. DU Yanjun, MA Keping. Temporal and spatial variation of seedfall in a broad-leaved evergreen forest in Gutianshan Nature Reserve of Zhejiang province, China[J]. Chinese Journal of Plant Ecology, 2012, 36(8): 717.
[15]	ZWOLAK R, BOGDZIEWICZ M, WRÓBEL A, et al. Advantages of masting in European beech: timing of granivore satiation and benefits of seed caching support the predator dispersal hypothesis[J]. Oecologia, 2016, 180(3): 749.
[16]	陈波, 宋永昌, 达良俊. 植物大年结实研究概述[J]. 应用生态学报, 2003,14(1): 117. CHEN Bo, SONG Yongchang, DA Liangjun. A review on mast seeding studies[J]. Chinese Journal of Applied Ecology, 2003,14(1): 117.
[17]	殷东生, 沈海龙. 林木大年结实特征及其影响因素研究进展[J]. 生态学杂志, 2016, 35(2): 542. YIN Dongsheng, SHEN Hailong. Research review on the characteristic of mast seeding in forest trees and its influencing factors[J]. Chinese Journal of Ecology, 2016, 35(2): 542.
[18]	孙玉玲, 李庆梅, 杨敬元, 等. 秦岭冷杉球果与种子的形态变异[J]. 生态学报, 2005, 25(1): 176. SU Yuling, LI Qingmei, YANG Jingyuan, et al. Morphological variation in cones and seeds in Abies chensiensis[J]. Acta Ecologica Sinica, 2005, 25(1): 176.