Assessment of Vegetation-Edaphic Correlation of Wetland Complex of Soon Valley, Pakistan using Multivariate Techniques

Zia, Arooba; Ahmad, Sheikh Saeed; Bashir, Hafsa

doi:10.52763/pjsir.biol.sci.61.1.2018.21.31

Cited by 2 publications

(3 citation statements)

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“…This finding supports the hypothesis of reduction in biodiversity as a result of the arrival of invasive plants, as reported by many authors, including [74][75][76][77][78]. Our findings also provide further evidence for the observation that X. strumarium-P. hysterosporus support each other in community invasion [79], and the findings of a X. strumarium-D. innoxia association as reported by [80] from Soon Valley, Pakistan.…”

Section: Local Distribution Of X Strumariumsupporting

confidence: 92%

“…Organic matter promotes soil structure, porosity and water availability [100,101]. We found increased organic and total carbon in X. strumarium-dominated communities, which was significantly contributing to its invasion [80], also indicating the importance of organic matter in sustaining Xanthium-Datura communities. Xanthium species tend to grow well in marshy places, as reported by [29], suggesting that available water is a significant contributing factor in determining the growth and reproduction of the species in communities, while [102] describe the importance of water for X. sibricum seed germination and growth production.…”

Section: Pattern Of Communities' Compositionmentioning

confidence: 76%

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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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Section: Local Distribution Of X Strumariumsupporting

confidence: 92%

Section: Pattern Of Communities' Compositionmentioning

confidence: 76%

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

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In environmental variables, elevation was a prominent factor in every community, i.e., C-I-IV, across which the vegetation characteristics vary (S Table 2-5). The species were most abundant at lower elevations, as high elevations have more diurnal variation in the climate (Zia et al, 2018). Along the elevation gradient in non-native communities, our results showed distinct and substantial variations in community composition across environmental variables.…”

Section: Discussionmentioning

confidence: 56%

Spatial distribution of the four invasive plants and their impact on natural communities’ dynamics across the arid and semi-arid environments in northwest Pakistan

Khan,

Ullah,

Okla

et al. 2023

Front. Plant Sci.

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IntroductionNon-native species are globally successful invaders with negative impacts on vegetation communities’ social, economic, and ecological values. Hence, the current research was carried out to assess the spatial distribution patterns and vegetative diversity of the four non-native species in severely invaded areas of the semi-arid parts of northern Pakistan.MethodsThe research was conducted using data from 1065 plots spread across 165 sites. These sites represented habitats throughout Northern Province, such as farm countryside, highlands, and abandoned places in rural and urban areas.Results and discussionThe communities were floristically diverse, represented by 107 plant species, and dominated mainly by annual and perennial life forms with herbaceous habits. Similarly, the floristic structure shows significant variation tested by the χ2 test (P< 0.05) for plant status, life forms, life cycle, and habitat base distribution. In addition, the diversity indices show significant variation having the highest diversity in C-III (P. hysterophorus-dominated sites) and lowest in C-IV (S. marianum-dominated sites, i.e., primarily pure communities), indicating non-native species may increase or decrease site diversity. The diversity communities were further supported by higher quantities of soil nutrients, i.e., organic percentage (2.22 ± 0.04). Altitude, soil nutrients, and texture were shown to be the environmental factors most associated with communities that non-native species had invaded.RecommendationIt is recommended that relevant, additional soil and climatic parameters be integrated into species distribution models to improve our understanding of the ecological niches of different species and to make a collective approach for preserving and conserving native plant communities.

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Assessment of Vegetation-Edaphic Correlation of Wetland Complex of Soon Valley, Pakistan using Multivariate Techniques

Cited by 2 publications

References 6 publications

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

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

Spatial distribution of the four invasive plants and their impact on natural communities’ dynamics across the arid and semi-arid environments in northwest Pakistan

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