Cross‐continental variation of herbivore resistance in a global plant invader DOI Creative Commons
Peipei Cao, Zhiyong Liao, Shengyu Wang

et al.

Ecography, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

While successful plant invasions often occur in novel environments, invasive species usually occupy broad niches within their native and introduced ranges. A better understanding of the process invasion therefore requires a wide sampling ranges, good knowledge introduction history. We tested for differentiation herbivore resistance among 128 (European, North American) (Chinese, Japanese) populations Japanese knotweed Reynoutria japonica two common gardens range: one Shanghai other Yunnan. In both gardens, we found that plants from differed China but not Japan, putative source introduction. Compared to Chinese populations, European American had thicker leaves lower C:N ratio higher flavonoids content garden. Variation was more strongly associated with climate collecting sites range than those Our results support hypothesis particularly resistant Japan may have played key role driving biogeographic variation resistance. study highlights importance history interpret divergence global invaders.

Language: Английский

Cross‐Continental Shifts of Ecological Strategy in a Global Plant Invader DOI Creative Commons
Ramona-Elena Irimia, Weihan Zhao, Peipei Cao

et al.

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(2)

Published: Feb. 1, 2025

ABSTRACT Aim Plant invasions are a global problem that requires studying plants and their environmental associations across native introduced ranges. Location 2000 km transects in China, Europe North America. Time Period June 2019–July 2020. Major Taxa Studied Japanese knotweed ( Reynoutria japonica ). Methods We surveyed 150 populations of knotweed, noxious invader the temperate zone, along China ranges Results found larger denser were associated with shifts leaf economy chemical defences. Introduced had higher SLA but reduced chlorophyll, lignin, C:N ratio toughness altered tannins, flavonoids alkaloids. three distinct multivariate phenotypes primarily ranges, two mainly populations. Main Conclusions Decreased herbivore pathogen impacts changes indicate enemy release novel habitat conditions might have driven emergence ecological strategies this plant invader.

Language: Английский

Citations

2
General‐purpose genotypes and evolution of higher plasticity in clonality underlie knotweed invasion DOI Creative Commons
Shengyu Wang, Zhiyong Liao, Peipei Cao

et al.

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Summary Many widespread invasive plant species express high phenotypic variation across novel environments, providing a unique opportunity to examine ecological and evolutionary dynamics under global change. However, studies often lack information about the origin of introduced populations, limiting our understanding post‐introduction evolution. We assessed responses Reynoutria japonica from 128 populations spanning latitudinal transects in native (China Japan), (North America Europe) ranges when grown two common gardens. Plants differed almost all traits those Chinese but were similar plants putative Japan. Compared North American, European Japanese expressed lower trait values plasticity most traits. both higher clonality than populations. Further, basal diameter compared Our findings emphasize potential role for invasion success. In addition, study highlights importance comparisons source within range identify environments.

Language: Английский

Citations

1
Cross‐continental variation of herbivore resistance in a global plant invader DOI Creative Commons
Peipei Cao, Zhiyong Liao, Shengyu Wang

et al.

Ecography, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

While successful plant invasions often occur in novel environments, invasive species usually occupy broad niches within their native and introduced ranges. A better understanding of the process invasion therefore requires a wide sampling ranges, good knowledge introduction history. We tested for differentiation herbivore resistance among 128 (European, North American) (Chinese, Japanese) populations Japanese knotweed Reynoutria japonica two common gardens range: one Shanghai other Yunnan. In both gardens, we found that plants from differed China but not Japan, putative source introduction. Compared to Chinese populations, European American had thicker leaves lower C:N ratio higher flavonoids content garden. Variation was more strongly associated with climate collecting sites range than those Our results support hypothesis particularly resistant Japan may have played key role driving biogeographic variation resistance. study highlights importance history interpret divergence global invaders.

Language: Английский

Citations

1