Research articles

Neighbor Density and Habitat Heterogeneity Jointly Determined the Seedling Abundance in Gaoligong Mountains, Southwestern China

  • 王丽萍,乌俊杰,柴 勇,于小莉,孙继文,冯 哲,陈凤仙
Expand
  • (1. College of Agriculture and Biological Sciences, Dali University, Dali 671003, Yunnan China; 2. Yunnan Academy of Forestry and Grassland, Kunming 650201, Yunnan China; 3. Yunnan Key Laboratory of Biodiversity of Gaoligong Mountain, Kunming 650201, Yunnan China; 4. Gaoligong Mountain Forest Ecosystem Observation and Research Station of Yunnan Province, Kunming 650201, Yunnan China)

Received date: 2024-03-18

  Accepted date: 2024-04-07

  Online published: 2024-05-27

Abstract

To understand the crucial dependency factors of seedling abundance with a diameter at breast height (DBH) <1 cm in a mid-montane moist evergreen broad-leaved forest of 4 hm2 Gaoligong Mountains forest. The generalized linear mixed models were used to analyze whether neighbor density and habitat factors shaped seedling abundance at the community and species level, and whether the strength of them varied with temporal. The results showed that: (1) The effect of neighbor density and habitat factors on all seedling abundance were significant and gradually strengthen at the community level. The positive correlation of common species with heterospecific neighbor density increased significantly, while no correlation with environmental factors. The seedling abundance of rare species reflected non-significant with neighbor density and environmental factors. (2) At species level, the seedling abundance of Psychotria morindoides was only slightly and significantly negatively associated with elevation in 2022. From 2020 to 2023, the significant positive effects of biotic and habitat heterogeneity on seedling abundance of Myrsine semiserrata. The higher canopy openness, elevation, and soil total potassium and temperatures, the higher seedling abundance. However, these correlations were non-significant on the seedling abundance of Symplocos stellaris var. aenea in the four periods. This study indicated that the seedling abundance is driven by both neighbor density and habitat heterogeneity. The strength of neighbor densities and habitat factors differs greatly among community, species and temporals, which relative importance of variables can maintain the community diversity in the plot.

Cite this article

王丽萍,乌俊杰,柴 勇,于小莉,孙继文,冯 哲,陈凤仙 . Neighbor Density and Habitat Heterogeneity Jointly Determined the Seedling Abundance in Gaoligong Mountains, Southwestern China[J]. Subtropical Plant Science, 2024 , 53(2) : 89 -99 . DOI: 10.3969/j.issn.1009-7791.2024.02.001

References

[1] Janzen D H. Herbivores and the number of tree species in tropical forests [J]. The American Naturalist, 1970, 104(940): 501–528.
[2] Connell J H. On the role of natural enemies in preventing competitive exclusion in some marine animals and in rain forest trees [M]// Den Boer P J, Gradwell G R. Dynamics of Populations. PUDOC: Wageningen, the Netherlands: 1971, 298–312.
[3] Comita L S, Muller-Landau H C, Aguilar S, Hubbell S P. Asymmetric density dependence shapes species abundances in a tropical tree community [J]. Science, 2010, 329(5989): 330–332.
[4] Comita L S, Queenborough S A, Murphy S J, Eck J L, Xu K, Krishnadas M, Beckman N, Zhu Y. Testing predictions of the Janzen-Connell hypothesis: a meta-analysis of experimental evidence for distance- and density-dependent seed and seedling survival [J]. Journal of Ecology, 2014, 102(4): 845–856.
[5] Lin L X, Comita L S, Zheng Z, Cao M. Seasonal differentiation in density-dependent seedling survival in a tropical rain forest [J]. Journal of Ecology, 2012, 100(4): 905–914.
[6] Hubbell S P, Ahumada J A, Condit R, Foster R B. Local neighborhood effects on long-term survival of individual trees in a neotropical forest [J]. Ecological Research, 2001, 16(5): 859–875.
[7] Zhu Y, Queenborough S A, Condit R, Hubbell S P, Ma K P, Comita L S. Density-dependent survival varies with species life-history strategy in a tropical forest [J]. Ecology Letters, 2018, 21(4): 506–515.
[8] Mensah S, Lokossou C J M, Assogbadjo A E, Kaka? R G. Seasonal variation of environment and conspecific density-dependence effects on early seedling growth of a tropical tree in semi-arid savannahs [J]. Global Ecology and Conservation, 2023, 43: e02455.
[9] Harms K E, Wright S J, Calderon O, Hernandez A, Herre E A. Pervasive density-dependent recruitment enhances seedling diversity in a tropical forest [J]. Nature, 2000, 404(6777): 493–495.
[10] Zhu K, Woodall C W, Monteiro J V, Clark J S. Prevalence and strength of density-dependent tree recruitment [J]. Ecology, 2015, 96(9): 2319–2327.
[11] Bachelot B, Kobe R K, Vriesendorp C. Negative density dependent mortality varies over time in a wet tropical forest, advantaging rare species, common species, or no species [J]. Oecologia, 2015, 179(3): 853–861.
[12] Metz M R, Sousa W P, Valencia R. Widespread density-dependent seedling mortality promotes species coexistence in a highly diverse Amazonian rain forest [J]. Ecology, 2010, 91(12): 3675–3685.
[13] Johnson D J, Beaulieu W T, Bever J D, Clay K. Conspecific Negative Density Dependence and Forest Diversity [J]. Science, 2012, 336(6083): 904–907.
[14] Mangan S A, Schnitzer S A, Herre E A, Mack K M L, Valencia M C, Sanchez E I, Bever J D. Negative plant-soil feedback predicts tree–species relative abundance in a tropical forest [J]. Nature, 2010, 466(7307): 752–755.
[15] Novotny V, Drozd P, Miller S E, Kulfan M, Janda M, Basset Y, Weiblen G D. Response to Comment on "Why Are There So Many Species of Herbivorous Insects in Tropical Rainforests?" [J]. Science, 2007, 315(5819): 1666.
[16] Bagchi R, Gallery R E, Gripenberg S, Gurr S J, Narayan L, Addis C E, Freckleton R P, Lewis O T. Pathogens and insect herbivores drive rainforest plant diversity and composition [J]. Nature, 2014, 506(7486): 85–88.
[17] Bever J D, Westover K M, Antonovics J. Incorporating the soil community into plant population dynamics: The utility of the feedback approach [J]. Journal of Ecology, 1997, 85(5): 561–573.
[18] Wright S J. Plant diversity in tropical forests: a review of mechanisms of species coexistence [J]. Oecologia, 2002, 130(1): 1–14.
[19] Comita L S, Condit R, Hubbell S P. Developmental changes in habitat associations of tropical trees [J]. Journal of Ecology, 2007, 95(3): 482–492.
[20] Metz M R. Does habitat specialization by seedlings contribute to the high diversity of a lowland rain forest? [J]. Journal of Ecology, 2012, 100(4): 969–979.
[21] Hubbell S P, Foster R B. Commonness and rarity in a neotropical rainforest: implications for tropical tree conservation [M]// Conservation Biology: The Science of Scarcity and Diversity. Sinauer Press Associates, 1986.
[22] Grubb P J. The maintenance of species-richness in plant communities: the importance of the regeneration niche [J]. Biological Reviews Cambridge Philosophical Society, 1977, 55(1): 107–145.
[23] Harpole W S. Tilman D. Non-neutral patterns of species abundance in grassland communities [J]. Ecology Letters, 2006, 9(1): 15–23.
[24] LaManna J A, Walton M L, Turner B L, Myers J A. Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species [J]. Ecology Letters, 2016, 19(6): 657–667.
[25] 柴勇, 孟广涛, 和丽萍, 袁春明, 邵金平, 李品荣, 李贵祥. 高黎贡山中山湿性常绿阔叶林树种的分布格局及其地形影响因子[J]. 广西植物, 2017, 37(12): 1508–1520.
[26] 吴征镒. 云南植被[M]. 北京: 科学出版社: 1987, 97–143.
[27] 孟广涛, 柴勇, 袁春明, 艾怀森, 李贵祥, 王骞, 李品荣, 蔺汝涛. 云南高黎贡山中山湿性常绿阔叶林的群落特征[J]. 林业科学, 2013, 49(3): 144–151.
[28] Canham C D, Lepage P T, Coates K D. A neighborhood analysis of canopy tree competition: effects of shading versus crowding. Canadian Journal of Forest Research, 2004, 34(4): 778–787.
[29] Wu J J, Swenson N G, Brown C, Zhang C C, Yang J, Ci X Q, Li J, Sha L Q, Cao M, Lin L X. How does habitat filtering affect the detection of conspecific and phylogenetic density dependence? [J]. Ecology, 2016, 97(5): 1182–1193.
[30] Ridler T W, Calvard S. Picture thresholding using an iterative selection method [J]. IEEE Transactions on Systems Man and Cybernetics, 1978, 8(8): 630–632.
[31] Murphy S J, Wiegand T, Comita L S. Distance-dependent seedling mortality and long–term spacing dynamics in a neotropical forest community [J]. Ecology Letters, 2017, 20(1): 1469–1478.
[32] Chen L, Swenson N, Ji N, Mi X C. Differential soil fungus accumulation and density dependence of trees in a subtropical forest [J]. Science, 2019, 366(6461): 124–128.
[33] LaManna J A, Mangan S A, Alonso A, Bourg N A, Brockelman W Y, Bunyavejchewin S, Chang L W, Chiang J M, Chuyong G B, Clay K, Condit R, Cordell S, Davies S J, Furniss T J, Giardina C P, Gunatilleke I A U N, Gunatilleke C V S, He F, Howe R W, Hubbell S P, Hsieh C F, InmanNarahari F M, Janík D, Johnson D J, Kenfack D, Korte L, Kr′al K, Larson A J, Lutz J A, McMahon S M, McShea W J, Memiaghe H R, Nathalang A, Novotny V, Ong P S, Orwig D A, Ostertag R, Parker G G, Phillips R P, Sack L, Sun I F, Tello J S, Thomas D W, Turner B L, Vela Díaz D M, Vr?ka T, Weiblen G D, Wolf A, Yap S, Myers J A. Plant diversity increases with the strength of negative density dependence at the global scale [J]. Science, 2017, 356(6345): 1389–1392.
[34] Wang W T, Jiang Y, Li B H, Xi N X, Chen Y F, He D, Feng J Y, Chu C J. Species abundance is jointly determined by functional traits and negative density dependence in a subtropical forest in southern China [J]. Journal of Plant Ecology, 2021, 14(3): 491–503.
[35] 王明慧, 陈昭铨, 李帅锋, 黄小波, 郎学东, 胡子涵, 尚瑞广, 刘万德. 云南普洱季风常绿阔叶林不同种子扩散方式的优势种空间点格局分析[J]. 生物多样性, 2023, 31(9): 86–95.
[36] 霍兵兵, 孙哲明, 欧文慧, 毛鸿志, 胡傲, 杨予静, 李中强. 环境筛选和扩散限制对长江流域湖北段湿地植物群落构建的共同影响[J]. 生态学报, 2023, 43(5): 1804–1811.
[37] Peters H A. Neighbour-regulated mortality: The influence of positive and negative density dependence on tree populations in species-rich tropical forests [J]. Ecology Letters, 2003, 6(8): 757–765.
[38] Getzin S, Wiegand T, Wiegand K, He F L. Heterogeneity influences spatial patterns and demographics in forest stands [J]. Journal of Ecology, 2008, 96(4): 807–820.
[39] 徐文秀, 路俊盟, 卢志军, 刘梦婷, 刘检明, 江明喜. 八大公山常绿落叶阔叶混交林影响幼苗存活的主要因子分析[J].植物科学学报, 2017, 35(5): 659–666.
[40] Gaston K J, Blackburn T M, Greenwood J J D, Gregory R D, Quinn R M, Lawton J H. Abundance-occupancy relationships [J]. Journal of Applied Ecology, 2000, 37(1): 39–59.
[41] 刘帅, 侯嫚嫚, 廖嘉星, 王均伟, 肖翠, 范秀华. 生物邻体和生境异质性共同驱动乔木幼苗存活动态[J]. 应用与环境生物学报, 2016, 22(4): 639–645.
[42] 邱华, 舒皓, 吴兆飞, 李明鲁, 殷正, 张春雨, 赵秀海. 长白山阔叶红松林乔木幼苗组成及多度格局的影响因素[J]. 生态学报, 2020, 40(6): 2049–2056.
Outlines

/

〈 〉