Native Species Abundance Buffers Non-Native Plant Invasibility following Intermediate Forest Management Disturbances

Chance, Donald P.; McCollum, Johannah R.; Street, Garrett M.; Strickland, Bronson K.; Lashley, Marcus A.

doi:10.1093/forsci/fxy059

Cited by 12 publications

(8 citation statements)

References 40 publications

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“…Furthermore, because removal of vegetation is a disturbance on its own, this practice may only be effective in reducing invasions if natives are not affected and the availability of invader propagules is low (Firn et al 2008). Only disturbances that promote native plants will be associated with resistance to invasion (Chance et al 2019).…”

Section: Disturbance and Vulnerability To Plant Invasionmentioning

confidence: 99%

Assessing vulnerability and resistance to plant invasions: a native community perspective

Ibáñez

Lei

Petri

et al. 2021

Invasive plant sci. manag.

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Risk assessments of biological invasions rarely account for native species performance and community features, but this assessment could provide additional insights for management aimed at decreasing vulnerability or increasing resistance of a plant community to invasions. To gather information on the drivers of native plant communities’ vulnerability and resistance to invasion, we conducted a literature search and meta-analysis. From the data collected we compared native and invasive plant performance between sites with high and low levels of invasion. We then investigated under which conditions native performance increased, decreased, or did not change with respect to invasive plants. We analyzed data from 214 publications summing to 506 observations. There were six main drivers of vulnerability to invasion: disturbance, decrease in resources, increase in resources, lack of biotic resistance, lack of natural enemies, and differences in propagule availability between native and invasive species. The two mechanisms of vulnerability to invasion associated with a strong decline in native plant performance were propagule availability and lack of biotic resistance. Native plants marginally benefited from enemy release and from decreases in resources, while invasive plants strongly benefited from both increased resources and lack of enemies. Fluctuation of resources, decreases and increases, were strongly associated with higher invasive performance while native plants varied in their response. These differences were particularly strong in instances of decreasing water or nutrients, and of increasing light and nutrients. We found overall neutral to positive responses of native plant communities to disturbance; but natives were outperformed by invasive species when disturbance was caused by human activities. We identified ecosystem features associated with both vulnerability and resistance to invasion, then used our results to inform management aimed at protecting the native community.

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Section: Disturbance and Vulnerability To Plant Invasionmentioning

confidence: 99%

Assessing vulnerability and resistance to plant invasions: a native community perspective

Ibáñez

Lei

Petri

et al. 2021

Invasive plant sci. manag.

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“…However, the species are not independent of each other due to the inter-species competitive interactions. It has been suggested that inter-species correlations reflect on the underlying community structure and the phase space [81,82].To investigate the connection between the population structure and the cross-species correlations, we calculated the cross-species abundances correlations, quantified via the Pearson correlation coefficient, as shown in Fig. 5A.…”

Section: The Abundances Of Different Species Are Weakly Anti-correlatedmentioning

confidence: 99%

Phenomenology and dynamics of competitive ecosystems beyond the niche-neutral regimes

Leibovich,

Rothschild,

Goyal

et al. 2022

Preprint

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Structure, composition and stability of ecological populations are shaped by the inter-and intraspecies interactions within these communities. It remains to be fully understood how the interplay of these interactions with other factors, such as immigration, control the structure, diversity and the long term stability of ecological systems in the presence of noise and fluctuations. We address this problem using a minimal model of interacting multi-species ecological communities that incorporates competition, immigration and demographic noise. We find that the complete phase diagram exhibits rich behavior with multiple regimes that go beyond the classical 'niche' and 'neutral' regimes, extending and modifying the 'neutral-like' or 'niche-like' dichotomy. In particular, we observe novel regimes that cannot be characterized as either 'niche' or 'neutral' where a multimodal species abundance distribution is observed. We characterize the transitions between the different regimes and show how they arise from the underlying kinetics of the species turnover, extinction and invasion. Our model serves as a minimal null model of noisy competitive ecological systems, against which more complex models that include factors such as mutations and environmental noise can be compared.

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“…Following their establishment, invasive plants have the potential to reduce rangelands' ability to provide ecosystem services i.e. provision of fodder quality and quantity for livestock and wildlife [1,[8][9][10][11]. Correspondingly, their negative impact on rangelands have been reported to disrupt human wellbeing [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…The spread of some invasive plants on rangelands are frequently enhanced by wind, flood water, and contaminated crops seeds or grains, and agricultural implements [6,8,14]. Also, the establishment of tropical botanical gardens have been reported to play a significant role in the spread of invasive plants on rangelands [15].…”

Section: Introductionmentioning

confidence: 99%

“…The magnitude of the problem is supposed to be augmented by the increase of invasions and spreading nature of invasive plant species [21]. Furthermore, the cost related to the control of invasive plants in rangelands have been claimed to be substantial [2,8]. For instance, in the United States, it was estimated that the annual cost of controlling invasive plants in rangelands is US$5 billion [2].…”

Section: Introductionmentioning

confidence: 99%

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Invasion, Impact and Control Techniques for Invasive Ipomoea hildebrandtii on Maasai Steppe Rangelands

Ojija¹,

Manyanza²

2021

J. Basic Appl. Sci.

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The ecosystem integrity of the Simanjiro Maasai steppe rangeland in Tanzania is threatened by the invasive plant Ipomoea hildebrandtii Vatke. However, its invasion status, impact and control techniques are unclear in the country. We conducted a study in Terrat and Sukuro villages in Simanjro District, Tanzania, to assess its invasion status and impact across grassland–woodland habitats using point sampling techniques. Key informant interviews and questionnaires were used to assess techniques used by the Maasai pastoralists to control I. hildebrandtii. A total of 10 plots (70 m2 each) with 9 quadrats (1 m2 each) in the invaded and non–invaded sites were established to study I. hildebrandtii invasions. The impact of I. hildebrandtii on rangelands was investigated by comparing herbage (herbaceous vegetation) species composition, richness, basal cover and biomass productivity between invaded and non–invaded plots. Results revealed that I. hildebrandtii invasion was higher in grass woodland habitats (90%) than in non-invaded plots. Non–invaded plots exhibited higher biomass productivity (0.289 ± 0.03 t DM/ha) than invaded plots (0.202 ± 0.02 t DM/ha). Furthermore, non–invaded plots had a higher basal cover (grasses: 54.71 ± 1.95%, forbs: 45.29 ± 1.95%) compared with invaded plots. We also recorded high native plants abundance in quadrats with low I. Hildebrandtii density (22.00 ± 1.36). Additionally, 81% of Maasai pastoralists reported to manually (uproot) control I. hildebrandtii. Based on the results of our study, we recommend further research and novel control techniques coupled with education to be implemented in the Simanjiro.

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Native Species Abundance Buffers Non-Native Plant Invasibility following Intermediate Forest Management Disturbances

Cited by 12 publications

References 40 publications

Assessing vulnerability and resistance to plant invasions: a native community perspective

Assessing vulnerability and resistance to plant invasions: a native community perspective

Phenomenology and dynamics of competitive ecosystems beyond the niche-neutral regimes

Invasion, Impact and Control Techniques for Invasive Ipomoea hildebrandtii on Maasai Steppe Rangelands

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