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Moore E, D'Amico V, Trammell TLE. Plant community dynamics following non‐native shrub removal depend on invasion intensity and forest site characteristics. Ecosphere 2023. [DOI: 10.1002/ecs2.4351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Eric Moore
- Department of Plant and Soil Sciences University of Delaware Newark Delaware USA
| | - Vincent D'Amico
- USDA Forest Service Newark Delaware USA
- Department of Entomology and Wildlife Ecology University of Delaware Newark Delaware USA
| | - Tara L. E. Trammell
- Department of Plant and Soil Sciences University of Delaware Newark Delaware USA
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Cao J, Li B, Qi R, Liu T, Chen X, Gao B, Liu K, Baskin CC, Zhao Z. Negative impacts of human disturbances on the seed bank of subalpine forests are offset by climatic factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158249. [PMID: 36028043 DOI: 10.1016/j.scitotenv.2022.158249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Precipitation and temperature in the subalpine region have increased dramatically in recent decades due to global warming, and human disturbances have continued to impact the vegetation in the region. Seed bank plays an important role in population recovery, but there are few studies on the synergistic effects of human disturbances and climate change on seed bank. We analyzed the synergistic effects of human disturbances and climate change on seed bank samples from 20 sites in the subalpine coniferous forest region using grazing and logging as the disturbance intensity gradient and precipitation and temperature as climate variables. The species diversity of aboveground vegetation all changed significantly (p < 0.05) with precipitation, temperature and disturbance level, while the seed bank richness and density did not. Furthermore, the species composition of the seed bank varied significantly less than that of the aboveground vegetation at different levels of disturbance (p < 0.001). Thus, seed bank showed a strong buffering capacity against the risk of local extinction caused by environmental changes that shift the species composition and diversity of aboveground vegetation. In addition, soil and litter are important influences controlling seed bank density in subalpine forests, and the results of structural equation modelling suggest that both disturbance and climate change can indirectly regulate the seed bank by changing the physicochemical properties of soil and litter. We conclude that increases in precipitation and temperature driven by climate change can buffer the negative effects of disturbances on the seed bank.
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Affiliation(s)
- Jiahao Cao
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, LanZhou University, Lanzhou 730070, China; Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China
| | - Bo Li
- Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China.
| | - Rui Qi
- Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China
| | - Ting Liu
- Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China
| | - Xuelong Chen
- Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China
| | - Benqiang Gao
- Institute of Forestry Science of Bailongjiang in Gansu Province, Lanzhou 730046, China; Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu 746300, China
| | - Kun Liu
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, LanZhou University, Lanzhou 730070, China
| | - Carol C Baskin
- Department of Biology, University of Kentucky, Lexington, USA; Department of Plant and Soil Sciences, University of Kentucky, Lexington, USA
| | - Zhigang Zhao
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, LanZhou University, Lanzhou 730070, China.
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Cao JH, Qi R, Liu T, Li B, Gao BQ, Chen XL, Zhao Y, Zhao ZG. Patterns of species and phylogenetic diversity in Picea purpurea forests under different levels of disturbance on the northeastern Qinghai-Tibetan Plateau. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Manee C, Rankin W“D, Kauffman G, Adkison G. Association between Roads and the Distribution ofMicrostegium vimineumin Appalachian Forests of North Carolina. SOUTHEAST NAT 2015. [DOI: 10.1656/058.014.0402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Quantifying Microstegium vimineum seed movement by non-riparian water dispersal using an ultraviolet-marking based recapture method. PLoS One 2013; 8:e63811. [PMID: 24069134 PMCID: PMC3771924 DOI: 10.1371/journal.pone.0063811] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 04/06/2013] [Indexed: 11/19/2022] Open
Abstract
Microstegium vimineum is a shade tolerant annual C4 invasive grass in the Eastern US, which has been shown to negatively impact species diversity and succession in hardwood forests. To date, empirical studies have shown that population expansion is limited to <1 m yr(-1), which is largely driven by gravity dispersal. However, this likely does not fully account for all mechanisms of population-scale dispersal as we observe greater rates of population expansion. Though water, both riparian and non-riparian water (i.e., ephemeral overland flow), have been speculated mechanisms for M. vimineum dispersal, few studies have empirically tested this hypothesis. We designed an experiment along the slopes of a Southwest Virginia hardwood forest to test the role of non-riparian water on local seed dispersal. We developed a seed marking technique by coating each seed with an ultraviolet (UV) powder that did not affect buoyancy to aid in situ seed recapture. Additionally, a new image analysis protocol was developed to automate seed identification from UV photos. Total seed mobility (summation of individual seed movement within each transect) was positively correlated with precipitation. Over a period of one month with 52.32 mm of precipitation, the maximum dispersal distance of any single recaptured seed was 2.4 m, and the average distance of dispersed seed was 0.21±0.04 m. This is the first quantitative evidence of non-riparian water dispersal in a forest understory, which accounts for an additional pathway of population expansion.
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Predicting Microstegium vimineum invasion in natural plant communities of the southern Blue Ridge Mountains, USA. Biol Invasions 2012. [DOI: 10.1007/s10530-012-0361-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Warren RJ, Bahn V, Bradford MA. The interaction between propagule pressure, habitat suitability and density-dependent reproduction in species invasion. OIKOS 2011. [DOI: 10.1111/j.1600-0706.2011.20174.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Warren RJ, Bahn V, Kramer TD, Tang Y, Bradford MA. Performance and reproduction of an exotic invader across temperate forest gradients. Ecosphere 2011. [DOI: 10.1890/es10-00181.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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9
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Per capita community-level effects of an invasive grass, Microstegium vimineum, on vegetation in mesic forests in northern Mississippi (USA). Biol Invasions 2010. [DOI: 10.1007/s10530-010-9861-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Miller NP, Matlack GR. BIODIVERSITY RESEARCH: Population expansion in an invasive grass, Microstegium vimineum: a test of the channelled diffusion model. DIVERS DISTRIB 2010. [DOI: 10.1111/j.1472-4642.2010.00690.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Warren RJ, Wright JP, Bradford MA. The putative niche requirements and landscape dynamics of Microstegium vimineum: an invasive Asian grass. Biol Invasions 2010. [DOI: 10.1007/s10530-010-9842-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Andrew ME, Ustin SL. The effects of temporally variable dispersal and landscape structure on invasive species spread. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2010; 20:593-608. [PMID: 20437950 DOI: 10.1890/09-0034.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Many invasive species are too widespread to realistically eradicate. For such species, a viable management strategy is to slow the rate of spread. However, to be effective, this will require detailed spread data and an understanding of the influence of environmental conditions and landscape structure on invasion rates. We used a time series of remotely sensed distribution maps and a spatial simulation model to study spread of the invasive Lepidium latifolium (perennial pepperweed) in California's Sacramento-San Joaquin River Delta. L. latifolium is a noxious weed and exhibited rapid, explosive spread. Annual infested area and empirical dispersal kernels were derived from the remotely sensed distributions in order to assess the influence of weather conditions on spread and to parameterize the simulation model. Spread rates and dispersal distances were highest for nascent infestations and in years with wet springs. Simulations revealed that spread rates were more strongly influenced by the length of long-distance dispersal than by temporal variation in its likelihood. It is thus important to capture long-distance dispersal and the conditions that facilitate spread when collecting data to parameterize spread models. Additionally, management actions performed in high-spread years, targeting long-distance recruits, can effectively contain infestations. Corridors were relatively unimportant to spread rates; their effectiveness at enhancing rate of spread was limited by the species' dispersal ability and the time needed to travel through the corridor. In contrast, habitat abundance and shape surrounding the introduction site strongly influenced invasion dynamics. Satellite patches invading large areas of invasible habitat present especially high risk.
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Affiliation(s)
- Margaret E Andrew
- Department of Land, Air, and Water Resources, University of California, Davis, California 95616, USA.
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Leaf litter and understory canopy shade limit the establishment, growth and reproduction of Microstegium vimineum. Biol Invasions 2010. [DOI: 10.1007/s10530-010-9711-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Huebner CD. Establishment of an invasive grass in closed-canopy deciduous forests across local and regional environmental gradients. Biol Invasions 2009. [DOI: 10.1007/s10530-009-9609-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cheplick GP. Limits to local spatial spread in a highly invasive annual grass (Microstegium vimineum). Biol Invasions 2009. [DOI: 10.1007/s10530-009-9587-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Marshall JM, Buckley DS. Influence ofMicrostegium vimineumPresence on Insect Abundance in Hardwood Forests. SOUTHEAST NAT 2009. [DOI: 10.1656/058.008.0312] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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