Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China

Pioneer species are crucial for the ecological restoration of degraded forests, but what drives variation in their demographic performance is still unclear. Here, we studied three populations of the dominant tree, Pinus massoniana, corresponding to three levels (low, medium, high) of ecological rest...

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Autores principales:	Wenhao Zhao, Tian Li, Yujie Cui, Jinlu Huang, Hejing Fu, Xianyu Yang, Shouzhong Li
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Degraded subtropical forest Ecological restoration Elasticity Integral projection models Pinus massoniana Pioneer tree demography Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/f4279d72075c492fb12a18b103d8ef1c
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spelling	oai:doaj.org-article:f4279d72075c492fb12a18b103d8ef1c2021-12-04T04:34:33ZDemographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China2351-989410.1016/j.gecco.2021.e01936https://doaj.org/article/f4279d72075c492fb12a18b103d8ef1c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2351989421004868https://doaj.org/toc/2351-9894Pioneer species are crucial for the ecological restoration of degraded forests, but what drives variation in their demographic performance is still unclear. Here, we studied three populations of the dominant tree, Pinus massoniana, corresponding to three levels (low, medium, high) of ecological restoration of secondary subtropical forests. Vital rates (growth, survival, and reproduction) were censused during 2019–2020, and integral projection models (IPMs) were parameterized to evaluate the population growth rate (λ) of P. massoniana. The results showed that the survival probability of large-sized individuals, stem growth, and λ of P. massoniana increased as the ecological restoration progressed. In contrast, the survival rate of seedlings declined substantially. The reproduction probability of small individuals was more likely at low than medium/high restoration levels. Elasticity analysis showed that survival contributes most to λ and fecundity the least. λ was primarily determined by the high survival of seedlings/small trees and large trees in the low- and high-restoration level populations, respectively. Life table response experiments showed that increases in survival were mostly responsible for augmented λ during ecological restoration; hence, the high-restoration population had the highest λ due to a higher survival rate. This work shows P. massoniana is capable of undergoing life-history strategy shifts. Its high recruitment and survival of small individuals make it a suitable species for restoring forests, whereby large-sized individuals eventually maintain populations at low risk of mortality.Wenhao ZhaoTian LiYujie CuiJinlu HuangHejing FuXianyu YangShouzhong LiElsevierarticleDegraded subtropical forestEcological restorationElasticityIntegral projection modelsPinus massonianaPioneer tree demographyEcologyQH540-549.5ENGlobal Ecology and Conservation, Vol 32, Iss , Pp e01936- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Degraded subtropical forest Ecological restoration Elasticity Integral projection models Pinus massoniana Pioneer tree demography Ecology QH540-549.5
spellingShingle	Degraded subtropical forest Ecological restoration Elasticity Integral projection models Pinus massoniana Pioneer tree demography Ecology QH540-549.5 Wenhao Zhao Tian Li Yujie Cui Jinlu Huang Hejing Fu Xianyu Yang Shouzhong Li Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
description	Pioneer species are crucial for the ecological restoration of degraded forests, but what drives variation in their demographic performance is still unclear. Here, we studied three populations of the dominant tree, Pinus massoniana, corresponding to three levels (low, medium, high) of ecological restoration of secondary subtropical forests. Vital rates (growth, survival, and reproduction) were censused during 2019–2020, and integral projection models (IPMs) were parameterized to evaluate the population growth rate (λ) of P. massoniana. The results showed that the survival probability of large-sized individuals, stem growth, and λ of P. massoniana increased as the ecological restoration progressed. In contrast, the survival rate of seedlings declined substantially. The reproduction probability of small individuals was more likely at low than medium/high restoration levels. Elasticity analysis showed that survival contributes most to λ and fecundity the least. λ was primarily determined by the high survival of seedlings/small trees and large trees in the low- and high-restoration level populations, respectively. Life table response experiments showed that increases in survival were mostly responsible for augmented λ during ecological restoration; hence, the high-restoration population had the highest λ due to a higher survival rate. This work shows P. massoniana is capable of undergoing life-history strategy shifts. Its high recruitment and survival of small individuals make it a suitable species for restoring forests, whereby large-sized individuals eventually maintain populations at low risk of mortality.
format	article
author	Wenhao Zhao Tian Li Yujie Cui Jinlu Huang Hejing Fu Xianyu Yang Shouzhong Li
author_facet	Wenhao Zhao Tian Li Yujie Cui Jinlu Huang Hejing Fu Xianyu Yang Shouzhong Li
author_sort	Wenhao Zhao
title	Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
title_short	Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
title_full	Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
title_fullStr	Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
title_full_unstemmed	Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China
title_sort	demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f4279d72075c492fb12a18b103d8ef1c
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Demographic performance of a pioneer tree species during ecological restoration in the soil erosion area of southeastern China

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