Long-Term Habitat Degradation Drives Neotropical Macrophyte Species Loss While Assisting the Spread of Invasive Plant Species

Salgado, Jorge; Vélez, María Isabel Álvarez; Caceres-Torres, Laura C.; Villegas-Ibagon, Jose A.; Bernal-Gonzalez, Laura C.; Lopera-Congote, Laura; Martinez-Medina, N. Melissa; González‐Arango, Catalina

doi:10.3389/fevo.2019.00140

Cited by 24 publications

(19 citation statements)

References 70 publications

(124 reference statements)

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“…Human socioeconomic activities can affect plant invasion processes (Wu et al, 2010;Wang et al, 2011;Zhang et al, 2015;Egawa, 2017;Salgado et al, 2019;Zhu et al, 2019;Pyšek et al, 2020), which is consistent with our findings for Hainan. Among the 19 administrative units of the province, the administrative unit with the highest population and GDP, Haikou, had the highest PD and SR of non-native and invasive species.…”

Section: Discussion Distribution Patterns Of Non-native Species In Ha...supporting

confidence: 92%

“…This suggests that reduction in the arrival of potentially invasive species in Hainan can be curbed by paying particular attention to arriving ships and aircraft from these areas. Various explanations emphasize that population density and GDP are key factors related to the composition, occurrence, and persistence of non-native species (Wu et al, 2010;Wang et al, 2011;Zhang et al, 2015;Salgado et al, 2019;Zhu et al, 2019). Generally, the higher the density of human residents, the higher the concentration of economic activities.…”

Section: Factors Affecting Non-native Plant Species In Hainanmentioning

confidence: 99%

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Socio-Ecological Effects on the Patterns of Non-native Plant Distributions on Hainan Island

et al. 2022

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Non-native plants spread to recipient areas via natural or human-mediated modes of dispersal, and, if the non-native species are invasive, introduction potentially causes impacts on native plants and local ecosystems as well as economic losses. Therefore, we studied the diversity and distributional patterns of non-native plant species diversity in the tropical island province of Hainan, China and its relationships with environmental and socioeconomic factors by generating a checklist of species and subsequently performing an analysis of phylogenetic diversity. To generate the checklist, we began with the available, relevant literature representing 19 administrative units of Hainan and determined the casual, naturalized, or invasive status of each species by conducting field surveys within 14 administrative units. We found that non-native plants of Hainan comprise 77 casual species, 42 naturalized species, and 63 invasive species. Moreover, we found that non-native plant species had diverse origins from North and South America, Africa, and Asia and that the most common species across administrative areas belong to the plant families Asteraceae and Fabaceae. Moreover, the numbers of non-native species distributed in the areas of Hainan bording the coast arer greater than those within interior areas of the province. Among the coastal areas, Haikou has the highest species richness and, simultaneously, the highest values for significantly, positively correlated predictor variables, population and GDP (R2 = 0.60, P < 0.01; R2 = 0.64, P < 0.01, respectively). In contrast, the landlocked administrative units of Tunchang and Ding’an have the smallest number of non-native species, while their populations are less than a quarter of that of Haikou and their GDP less than one tenth. Among natural environmental variables, we determined that the number of non-native species had the strongest correlation with the minimum temperature in the coldest month, which predicts a smaller number of non-native species. Additionally, non-native species are primarily distributed in urban and rural built-up areas and agricultural areas; areas that are dominated by human activities. Overall, our study provides a working checklist of the non-native plants of Hainan as well as a theoretical framework and reference for the control of invasive plants of the province.

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Section: Discussion Distribution Patterns Of Non-native Species In Ha...supporting

confidence: 92%

Section: Factors Affecting Non-native Plant Species In Hainanmentioning

confidence: 99%

Socio-Ecological Effects on the Patterns of Non-native Plant Distributions on Hainan Island

et al. 2022

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“…The relative shallowness of these two lakes (< 8 m) could explain this synchronous pattern. In general, shallow lakes are regarded as dynamic, well‐mixed systems that respond quickly to climate and anthropogenic disturbance (Salgado et al 2019). In this regard, Aulacoseira taxa were dominant components in Yahuarcocha and Fondococha records as they are dependent on turbulence to remain in the water column.…”

Section: Discussionmentioning

confidence: 99%

Ecological resilience in tropical Andean lakes: A paleolimnological perspective

Benito

Luethje

Schneider

et al. 2021

Limnology & Oceanography

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Little is known about whether changes in lake ecosystem structure over the past 150 years are unprecedented when considering longer timescales. Similarly, research linking environmental stressors to lake ecological resilience has traditionally focused on a few sentinel sites, hindering the study of spatially synchronous changes across large areas. Here, we studied signatures of paleolimnological resilience by tracking change in diatom community composition over the last 2000 years in four Ecuadorian Andean lakes with contrasting ecoregions. We focused on climate and anthropogenic change, and the type of biological responses that these changes induced: gradual, elastic, or threshold. We combined multivariate ordination techniques with nonlinear time‐series methods (hierarchical generalized additive models) to characterize trajectories of community responses in each lake, and coherence in such trajectories across lakes. We hypothesized that remote, high‐elevation lakes would exhibit synchronous trends due to their shared climatic constraints, whereas lower elevation lakes would show less synchronous trends as a consequence of human density and land‐cover alteration. We found that gradual and elastic responses dominated. Threshold‐type responses, or regime shifts, were only detected in the less remote lake, after a long period of gradual and elastic changes. Unexpected synchrony was observed in diatom assemblages from geographically distant and human‐impacted lakes, whereas lakes under similar broad‐scale environmental factors (climate and ecoregion) showed asynchronous community trajectories over time. Our results reveal a complex ecological history and indicate that Andean lakes in Ecuador can gradually adapt and recover from a myriad of disturbances, exhibiting resilience over century to millennial timescales.

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“…We also found that the invasion of X. strumarium was prominent on the roads/wastes field sides in herb or shrub-dominated communities, and in agricultural fields. Similarly, [87][88][89][90][91] have predicted road pavements, railway tracks, and agricultural lands are most susceptible to plant invasion. Moreover, low diversity indexes were recorded which may correspond to the high invasion rate in the measured sites.…”

Section: Strumarium Invasion and Environmental Variablesmentioning

confidence: 99%

Invasive Species as Rivals: Invasive Potential and Distribution Pattern of Xanthium strumarium L.

et al. 2022

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Xanthium strumarium L. is a globally successful invasive herb that has had significant negative ecological, economic and social impacts in many world regions. The present study was therefore conducted to evaluate the invasive potential and spatial distribution patterns of X. strumarium in heavily invaded plant communities of the semiarid regions of northern Pakistan. Investigations were based on data from 20 plants grown in the Herbarium at the University of Malakand, and from observations in 450 plots distributed across 45 stands representing habitats across Northern Province including open fields, hillocks and abandoned areas in both urban and rural areas. Multivariate analysis identified elevation, organic matter and organic carbon as the environmental variables most associated with communities invaded by X. strumarium. Increased soil silt was positively associated and available water was negatively associated with X. strumarium–invaded communities. These key environmental characteristics allowed us to identify four main associations: Group I: X. strumarium-C. sativa, Group II: X. strumarium-P. hysterophorus, Group III: X. strumarium-A. aspera and Group IV: X. strumarium-C. sativa. Other invasive species were observed, either exotic, such as P. hysterophorus, or indigenous, such as C. sativa and D. inoxia, often co-occurring and responding similarly to these factors. The results suggest that high temperature with drought stress could be a determinant of increasing population at lower elevations, whereas colder climates with adequate moisture are related to reduced populations at higher elevations, near the species’ upper range limits. It is recommend that the inclusion of appropriate, additional soil and climatic variables in species distribution models be implemented in order to better explain species’ ecological niches and help guide conservation and protection plans for native plant communities.

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Long-Term Habitat Degradation Drives Neotropical Macrophyte Species Loss While Assisting the Spread of Invasive Plant Species

Cited by 24 publications

References 70 publications

Socio-Ecological Effects on the Patterns of Non-native Plant Distributions on Hainan Island

Socio-Ecological Effects on the Patterns of Non-native Plant Distributions on Hainan Island

Ecological resilience in tropical Andean lakes: A paleolimnological perspective

Invasive Species as Rivals: Invasive Potential and Distribution Pattern of Xanthium strumarium L.

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