The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants

Climate change caused by human activities leads to nitrogen deposition, phosphorus input and changes in rainfall patterns, which also result in heterogeneous distribution patterns of resources and biological invasion. Clonal plants grow in environments with spatial and temporal heterogeneity; they c...

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Autores principales:	Junnan Wang, Qiuyue Wang, Jingwen Hu, Hongwei Yu, Chunhua Liu, Dan Yu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Environmental heterogeneity Clonal plants Biological invasion Growth performance Foraging response Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/64a6e47a57e2463eaf9f5928316cfb67
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spelling	oai:doaj.org-article:64a6e47a57e2463eaf9f5928316cfb672021-12-01T04:47:30ZThe influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants1470-160X10.1016/j.ecolind.2021.107504https://doaj.org/article/64a6e47a57e2463eaf9f5928316cfb672021-06-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21001692https://doaj.org/toc/1470-160XClimate change caused by human activities leads to nitrogen deposition, phosphorus input and changes in rainfall patterns, which also result in heterogeneous distribution patterns of resources and biological invasion. Clonal plants grow in environments with spatial and temporal heterogeneity; they can effectively adapt to heterogeneous environments and further increase growth performance through their own unique characteristics. The strong clonal ability may help invasive species take advantage of heterogeneous environments. To investigate the combined effects of soil nutrients and water heterogeneity on the growth performance and foraging behavior of exotic and native aquatic plants, we conducted a greenhouse experiment with the notorious invasive species Alternanthera philoxeroides and Myriophyllum aquaticum compared with similar life forms of native species Ludwigia peploides. We grew each species in containers in two heterogeneous soils consisting of patches of nitrogen and phosphorus, mixed evenly, and low-nutrient soils, and in soils where the nitrogen and phosphorus soils were mixed homogeneously. The experiment was carried out with homogeneous or heterogeneous water treatments to examine how the interaction with the soil treatments. Overall, all three species increased or maintained their growth performance in heterogeneous soils compared with homogeneous soils. The heterogeneous nutrient treatment with large nutrient differences between patches produced significantly more total biomass, by 68.83% and 160.59%, than the homogeneous nutrient treatment of A. philoxeroides and L. peploides, respectively. There were no significant effects of water heterogeneity on the growth performance of A. philoxeroides and M. aquaticum. In addition, A. philoxeroides and L. peploides showed obvious preferential selective placements of foraging organs in resource-rich patches and further increased whole plant growth. However, M. aquaticum did not show foraging behavior during the experiment, and the effects of soil nutrient heterogeneity on L. peploides changed with the supply mode of water. Foraging behavior may help A. philoxeroides better adapt to heterogeneous environments. Our results suggest that the combination with soil nutrients and water heterogeneity could promote the expansion and growth of the notorious invasive species A. philoxeroides.Junnan WangQiuyue WangJingwen HuHongwei YuChunhua LiuDan YuElsevierarticleEnvironmental heterogeneityClonal plantsBiological invasionGrowth performanceForaging responseEcologyQH540-549.5ENEcological Indicators, Vol 125, Iss , Pp 107504- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental heterogeneity Clonal plants Biological invasion Growth performance Foraging response Ecology QH540-549.5
spellingShingle	Environmental heterogeneity Clonal plants Biological invasion Growth performance Foraging response Ecology QH540-549.5 Junnan Wang Qiuyue Wang Jingwen Hu Hongwei Yu Chunhua Liu Dan Yu The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
description	Climate change caused by human activities leads to nitrogen deposition, phosphorus input and changes in rainfall patterns, which also result in heterogeneous distribution patterns of resources and biological invasion. Clonal plants grow in environments with spatial and temporal heterogeneity; they can effectively adapt to heterogeneous environments and further increase growth performance through their own unique characteristics. The strong clonal ability may help invasive species take advantage of heterogeneous environments. To investigate the combined effects of soil nutrients and water heterogeneity on the growth performance and foraging behavior of exotic and native aquatic plants, we conducted a greenhouse experiment with the notorious invasive species Alternanthera philoxeroides and Myriophyllum aquaticum compared with similar life forms of native species Ludwigia peploides. We grew each species in containers in two heterogeneous soils consisting of patches of nitrogen and phosphorus, mixed evenly, and low-nutrient soils, and in soils where the nitrogen and phosphorus soils were mixed homogeneously. The experiment was carried out with homogeneous or heterogeneous water treatments to examine how the interaction with the soil treatments. Overall, all three species increased or maintained their growth performance in heterogeneous soils compared with homogeneous soils. The heterogeneous nutrient treatment with large nutrient differences between patches produced significantly more total biomass, by 68.83% and 160.59%, than the homogeneous nutrient treatment of A. philoxeroides and L. peploides, respectively. There were no significant effects of water heterogeneity on the growth performance of A. philoxeroides and M. aquaticum. In addition, A. philoxeroides and L. peploides showed obvious preferential selective placements of foraging organs in resource-rich patches and further increased whole plant growth. However, M. aquaticum did not show foraging behavior during the experiment, and the effects of soil nutrient heterogeneity on L. peploides changed with the supply mode of water. Foraging behavior may help A. philoxeroides better adapt to heterogeneous environments. Our results suggest that the combination with soil nutrients and water heterogeneity could promote the expansion and growth of the notorious invasive species A. philoxeroides.
format	article
author	Junnan Wang Qiuyue Wang Jingwen Hu Hongwei Yu Chunhua Liu Dan Yu
author_facet	Junnan Wang Qiuyue Wang Jingwen Hu Hongwei Yu Chunhua Liu Dan Yu
author_sort	Junnan Wang
title	The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
title_short	The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
title_full	The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
title_fullStr	The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
title_full_unstemmed	The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
title_sort	influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/64a6e47a57e2463eaf9f5928316cfb67
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The influence of small-scale resource heterogeneity caused by human activities on the growth phenotype of invasive aquatic plants

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