Understanding the importance of spatial scale in the patterns of grassland invasions

Czarniecka-Wiera, Marta; Szymura, Tomasz H.; Kącki, Zygmunt

doi:10.1016/j.scitotenv.2020.138669

Cited by 17 publications

(15 citation statements)

References 61 publications

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“…Propagule pressure (P) includes dispersal and geographical constraints, while abiotic characteristics (A) comprise environmental and habitat constraints and biotic characteristics (B) describe the internal dynamics of the vegetation and community interactions (Catford et al., 2009 ). All these factors operate at different spatial scales (Czarniecka‐Wiera et al., 2020 ; Milbau et al., 2009 ) and are influenced by human activity (Essl et al., 2011 ). In practice, different indices can be applied as proxies of propagule pressure and abiotic and biotic conditions in modeling plant invasion process (Bazzichetto et al., 2018 ; Beaury et al., 2020 ; Chytrý et al., 2008 ; Szymura et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

“…Despite their deficiencies (e.g., problematic species‐environment equilibrium; Gallien et al., 2012 ; Hattab et al., 2017 ), iSDMs are still useful in the face of accelerating global changes and data deficiencies, as well as limited research funding (Yates et al., 2018 ). The PAB approach, despite its obvious advantages for selection of explanatory variables and model results interpretation, has rarely been used within an invasive species distribution modeling framework (but see Bazzichetto et al., 2018 ; Czarniecka‐Wiera et al., 2020 ; Lozano et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Drivers of Solidago species invasion in Central Europe—Case study in the landscape of the Carpathian Mountains and their foreground

Perera

Szymura

Zając

et al. 2021

Ecology and Evolution

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Aim The invasion process is a complex, context‐dependent phenomenon; nevertheless, it can be described using the PAB framework. This framework encompasses the joint effect of propagule pressure (P), abiotic characteristics of the environment (A), and biotic characteristics of both the invader and recipient vegetation (B). We analyzed the effectiveness of proxies of PAB factors to explain the spatial pattern of Solidago canadensis and S. gigantea invasion using invasive species distribution models. Location Carpathian Mountains and their foreground, Central Europe. Methods The data on species presence or absence were from an atlas of neophyte distribution based on a 2 × 2 km grid, covering approximately 31,200 km2 (7,752 grid cells). Proxies of PAB factors, along with data on historical distribution of invaders, were used as explanatory variables in Boosted Regression Trees models to explain the distribution of invasive Solidago. The areas with potentially lower sampling effort were excluded from analysis based on a target species approach. Results Proxies of the PAB factors helped to explain the distribution of both S. canadensis and S. gigantea. Distributions of both species were limited climatically because a mountain climate is not conducive to their growth; however, the S. canadensis distribution pattern was correlated with proxies of human pressure, whereas S. gigantea distribution was connected with environmental characteristics. The varied responses of species with regard to distance from their historical distribution sites indicated differences in their invasion drivers. Main conclusions Proxies of PAB are helpful in the choice of explanatory variables as well as the ecological interpretation of species distribution models. The results underline that human activity can cause variation in the invasion of ecologically similar species.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Drivers of Solidago species invasion in Central Europe—Case study in the landscape of the Carpathian Mountains and their foreground

Perera

Szymura

Zając

et al. 2021

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Propagule pressure (P) includes dispersal and geographical constraints, while abiotic characteristics (A) comprise environmental and habitat constraints and biotic characteristics (B) describe the internal dynamics of the vegetation and community interactions (Catford et al, 2009). All these factors operate at different spatial scales (Czarniecka-Wiera, Szymura, & Ka˛cki, 2020;Milbau, Stout, Graae, & Nijs, 2009) and are influenced by human activity (Essl et al, 2011). In practice, different indices can be applied as proxies of propagule pressure and abiotic and biotic conditions in modelling plant invasion process (Bazzichetto et al, 2018;Beaury, Finn, Corbin, Barr, & Bradley, 2020;Chytrý et al, 2008;Szymura, Szymura, Zaja˛c, & Zaja˛c, 2018).…”

mentioning

confidence: 99%

“…Among the abiotic interactions with the greatest impact on a large spatial scale (continental, regional), climate is considered the most critical in limiting the geographic distribution of species (Hulme, 2017;Thuiller, Richardson, & Midgley, 2007). In terms of resource availability, invasive species usually prefer productive habitats where they are able to achieve competitive dominance (Czarniecka-Wiera et al, 2020;Peltzer, Kurokawa, & Wardle, 2016;Perkins, Leger, & Nowak, 2011). In addition, environments with high variability in resource availability, resulting from periodic external supply (e.g., surface runoff) or destruction of local vegetation that previously used the resources (e.g., human disturbances, abandonment of agricultural crops), are more susceptible to invasions than habitats with stable availability of resources (Davis, Grime, & Thompson, 2000;Kulmatiski, Beard, & Stark, 2006;Rejmánek, 1989).…”

mentioning

confidence: 99%

“…The iSDMs are especially useful in the face of accelerating global changes and data deficiencies, as well as limited research funding (Yates et al, 2018). The PAB approach, despite its obvious advantages for selection of explanatory variables and model results interpretation, has rarely been used within an invasive species distribution modelling framework (but see Bazzichetto et al, 2018;Czarniecka-Wiera et al, 2020;Lozano et al, 2020).…”

mentioning

confidence: 99%

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Drivers of Solidago species invasion in Central Europe---Case study in the landscape of the Carpathian Mountains and their foreground

Perera

Szymura

Zając

et al. 2021

Preprint

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Aim: The invasion process is a complex, context-dependent phenomenon; nevertheless, it can be described using the PAB framework. This framework encompasses the joint effect of propagule pressure (P), abiotic characteristics of the environment (A), and biotic characteristics of both the invader and recipient vegetation (B). We analyzed the effectiveness of proxies of PAB factors to explain the spatial pattern of Solidago canadensis and S. gigantea invasion using invasive species distribution models. Location: Carpathian Mountains and their foreground, Central Europe. Methods: The data on species presence or absence were from an atlas of neophyte distribution based on a 2 × 2 km grid, covering approximately 31,200 km2 (7752 grid cells). Proxies of PAB factors, along with data on historical distribution of invaders were used as explanatory variables in Boosted Regression Trees models to explain the distribution of invasive Solidago. The areas with potentially lower sampling effort were excluded from analysis based on a target species approach. Results: Proxies of the PAB factors helped to explain the distribution of both S. canadensis and S. gigantea. Distributions of both species were limited climatically because a mountain climate is not conducive to their growth; however, the S. canadensis distribution pattern was correlated with proxies of human pressure, whereas S. gigantea distribution was connected with environmental characteristics. The varied responses of species with regard to distance from their historical distribution sites indicated differences in their invasion drivers. Main conclusions: Proxies of PAB are helpful in the choice of explanatory variables as well as the ecological interpretation of species distribution models. The results underline that human activity can cause variation in the invasion of ecologically similar species.

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Restoration of ecologically valuable grassland on sites degraded by invasive Solidago: lessons from a 6‐year experiment

2022

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Most semi‐natural grasslands are threatened by invasive alien plants, which have also overgrown abandoned fields. We conducted a 6‐year experiment testing different methods of eliminating invasive Solidago species and adding seed to restore valuable species‐rich grassland. Three removal treatments (herbicide spraying, rototilling, turf stripping) and two seed addition methods (direct sowing of a fast‐growing grass species mixture, spreading of fresh hay collected from a semi‐natural meadow) were examined alongside control treatments (no removal, no seed addition). The experimental plots were mowed twice a year, and the vegetation composition, biomass production, hay chemical composition, and fodder quality were assessed. Mowing twice a year significantly reduced Solidago cover. Although significant differences were observed in the invaders' cover between the removal treatments and between the seed addition methods early in the study, the differences lessened over time, especially for the removal treatments. By the end of the 6‐year study period, the Solidago cover was reduced to 25% of the initial complete coverage. Spreading fresh hay greatly reduced Solidago biomass and yielded the highest characteristic species cover. Herbicide treatment was no more efficient than the more environmentally friendly methods over the study period. The results suggest that fresh hay is good method of seed addition for restoring old fields overgrown by invasive Solidago. With mowing of the restored area twice a year for several years, Solidago removal by turf striping (scalping) followed by the spreading of fresh hay is recommended for grassland restoration given its environmental impact, cost, and hay quality.

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Understanding the importance of spatial scale in the patterns of grassland invasions

Cited by 17 publications

References 61 publications

Drivers of Solidago species invasion in Central Europe—Case study in the landscape of the Carpathian Mountains and their foreground

Drivers of Solidago species invasion in Central Europe—Case study in the landscape of the Carpathian Mountains and their foreground

Drivers of Solidago species invasion in Central Europe---Case study in the landscape of the Carpathian Mountains and their foreground

Restoration of ecologically valuable grassland on sites degraded by invasive Solidago: lessons from a 6‐year experiment

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