Invasive Alien Species: An Emerging Challenge for the Biodiversity

Khan, Raees; Iqbal, Iqra; Ullah, Asad; Ullah, Zahid; Khan, Shujaul Mulk

doi:10.1007/978-3-030-73943-0_25

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…This outcome is contingent, in part, upon how invasive species share the niche of pollinators. Nonetheless, the process of collecting and analyzing data pertaining to pollen transport and transfer networks is already intricate and time intensive (Khan et al, 2022). The challenge becomes even more formidable when considering intraspecific variations and the dynamic nature of invasive species.…”

Section: Introductionmentioning

confidence: 99%

Revealing the intricate microcosm: Advancing invasive species pollen analysis through scanning microscopy of ultra sculpture

Al‐Qahtani

2023

Microscopy Res & Technique

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Micromorphological visualization of plant surface peculiarities provides valuable characters for the precise identification of plant species. Invasive alien species, introduced outside their native range, pose significant ecological, and health challenges. This study focuses on micromorphological investigations of selected invasive plant species belonging to the families Amaranthaceae, Asteraceae, Moraceae, Crassulaceae, Cannabaceae, Fabaceae, Commelinaceae, and Oxalidaceae. The study employs scanning electron microscopy (SEM) to analyze the species micromorphology of pollen structure in depth to characterize the sculpturing patterns. Additionally, the study examines the pollen characteristics of these invasive plants, including shape, size, and fertility, along with exine sculpturing. The maximum polar diameter was observed for Senna tora (41.2 μm). The spines in Achillea fragrantissima were measured to have dimensions of approximately 1.91 μm in length and 2.11 μm in width. The findings shed light on the allergy‐causing potential of these invasive species, providing crucial information for accurate identification and effective management strategies to safeguard the indigenous flora of the region. The study contributes to the knowledge base for botanists, taxonomists, policy makers, climate experts, and biodiversity specialists.Research Highlights Integrating SEM to analyze the pollen of invasive species. Unveiling pollen micromorphology of invasive species. Exploring the microscopic realm of invasive pollen to accurately identify the species.

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Section: Introductionmentioning

confidence: 99%

Revealing the intricate microcosm: Advancing invasive species pollen analysis through scanning microscopy of ultra sculpture

Al‐Qahtani

2023

Microscopy Res & Technique

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“…Biological invasion can lead to alterations in species composition and changes in nutrient cyclic and result in forest fire [ 2 ]. In Pakistan, alien invasive plants are considered as one of the biggest and neglected hazards to the native biodiversity [ 3 ]. The climatic characteristics like temperature, day length, and relative humidity act as an abiotic filter for newly introduced plants [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Seed Coat Morphology and Sculpturing of Selected Invasive Alien Plants from Lesser Himalaya Pakistan and Their Systematic Implications

Anjum

Mir

Shakir

et al. 2022

BioMed Research International

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Invasive alien species (IAS) are considered as the second major threat to biodiversity after habitat destruction worldwide. They are aggressive competitors and dominate an ecosystem where they introduce and cause reduction in indigenous diversity. Invasive plants alter the evolutionary pathways of native species by competition, niche displacement, hybridization, introgression, predation, and ultimately extinction of native species. Biological invasion also results in economic and environmental damage and harm to human health. Invasive plants have an effective reproductive as well as dispersal mechanisms. Most invasive plants produce abundant fruits and seeds that are widely disseminated and remain viable in the soil for several years. Invasive plants may change their seed character in order to adapt themselves to the new environment and facilitate their performance. A study on seed coat sculpturing in invasive alien plants collected from Lesser Himalaya region, Pakistan, was conducted using scanning electron microscope to determine the importance of seed morphological characters as an additional tool for identification. Quantitative characters such as seed length and width, macromorphological characters including color, hilum position, and seed shape, and micromorphological characters of seed including surface patterns and periclinal and anticlinal wall of seeds were studied. Findings at the present indicate that most of the seeds were found spherical followed by ovate and elliptical in shape with smooth surface and showed terminal hilum. Almost reticulate seed patterns were observed in seeds. Majority of seeds showed raised anticlinal walls with protuberance periclinal walls. The seeds of Xanthium strumarium were observed with maximum length of 13 mm and with width of 8 mm. Length by width ratio of seeds was also calculated; it was found that maximum L/W ratio was observed in Sonchus oleraceus L., i.e., 2.66. Seed characters, both macro- and micromorphological, furnish useful data for classification and delimitation of invasive taxa. This study will help to understand the invasion mechanism in plants due to variations in seed surface, shape, and other characters. Adaptive behavior of the seed during the invasion process of the new ecosystem is also elaborated.

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Invasive Alien Species: An Emerging Challenge for the Biodiversity

Cited by 2 publications

References 30 publications

Revealing the intricate microcosm: Advancing invasive species pollen analysis through scanning microscopy of ultra sculpture

Revealing the intricate microcosm: Advancing invasive species pollen analysis through scanning microscopy of ultra sculpture

Seed Coat Morphology and Sculpturing of Selected Invasive Alien Plants from Lesser Himalaya Pakistan and Their Systematic Implications

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