Invasive Alien Plant Species Assessment in Urban Ecosystem: A Case Study from Andhra University, Visakhapatnam, India (original) (raw)
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Study of Invasive Plant Species Distribution in Warangal City, Telangana, India
2021
The invasive plant species are non-native organisms which invade natural habitats and destroy the indigenous flora. The invasion of alien plant species into various places is recognized as a major cause of loss of biodiversity, after habitat destruction. The aim of the present investigation is to study invasive flora of city of Warangal, Telangana with detailed study about their nativity, family, habit and distribution. A total of 97 species belonging to 72 genera of 30 families have been recorded as alien species. Among them about 63% are native to tropical America. Fabaceae is the dominant family with 13 species, followed by Asteraceae with 12 species, Convolvulaceae with 8 species, Amaranthaceae, Malvaceae, Solanaceae, Euphorbiaceae with 6 species each. Remaining families are represented by species less than 6. Habit wise analysis of invasive plant species showed that 75% species belongs to herbs, 9% belongs to shrubs, 3% trees, and 2% climbers. Mesosphaerum suaveolens, Partheniu...
Checklist of invasive alien species in CSIR-NBRI Botanic Garden, Lucknow, India
2015
The invasive alien species of CSIR-NBRI Botanic Garden are enumerated and their impact on the surrounding ecosystem are discussed. This study deals with the information on habit, nativity and family of plant species occurring in the area of study. A total of 103 invasive alien species under 86 genera and 36 families were recorded. Among these, the eudicotyledons represent 85 species, 69 genera and 32 families; monocotyledons represent 18 species, 17 genera and 4 families. In terms of nativity, species from Tropical America are the most dominant group with 34 species. In addition, based on life forms, herbs are dominant (88 species), followed by shrubs (8 species), climbers (4 species) and trees (3 species).
Invasive Alien Flora in and around an Urban Area of India
Diversity and Ecology of Invasive Plants [Working Title], 2019
Invasive alien species are non-native exotic organisms which can disperse and destroy the biodiversity and change the ecosystem. The present study deals with the comprehensive list of invasive alien plants (IAPs) of Rourkela Steel City, Sundargarh, Odisha, with background information on family, habit, and nativity. A total of 165 invasive alien species under 132 genera and 59 families have been recorded. From the nativity study, among 25 geographic regions, the majority of invasive plants reported from American continent (62%) with 103 species. While in life form analysis, the herbs (114 species) are dominant, followed by trees (23 species), shrubs (22 species), climber (5 species), and undershrub (1 species). Ageratum conyzoides, Blumea lacera, Cassia alata, Lantana camara, Cassia tora, Parthenium hysterophorus, Xanthium sp., Datura sp., Cardamine scutata, Argemone mexicana, Grangea maderaspatana, Hyptis suaveolens, and Gnaphalium polycaulon are some noxious species found during the study. Parthenium hysterophorus is the highly noxious plant which is grown everywhere after Ageratum conyzoides and Lantana camara. Most of the invasive species are locally used for medicinal purposes as well as for food, fuel, and fodder purposes. A better planning and reporting of the spread of new plants in the area are needed for early identification and control of the invasive alien plant species in different seasons. Since the flora of Sundargarh districts has not been beneficially explored, this study will help in the compilation of flora of Sundargarh district and Rourkela in particular. Further studies will reveal the allelopathic effects on different agricultural crops as well as the different ethnobotanical values.
Alien Plant Invasions in India: Current Status and Management Challenges
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2012
ABSTRACT Invasive species are a major driver of global environmental change contributing to the loss of biodiversity, altering of ecosystem structure and functioning, and affecting provision of ecosystem services worldwide, including in India. In view of globalization of Indian economy and consequential increase in international travel and trade, introduction, establishment and spread of alien species is likely to escalate in India with serious ecological and socio-economic consequences. A recent study has reported the occurrence of 1,599 alien plant species belonging to 841 genera in 161 families in India, and the alien flora thus represents 8.5 % of the total Indian vascular flora. While the taxonomic inventory of alien species represents the first important step, but more detailed studies on characterization of alien species on the basis of their stage of invasion, identification of potentially invasible habitats/ecosystems, detection of introduction pathways and vectors of alien species, assessment, mapping and monitoring of invasive species using modern geo-spatial technology such as hyperspectral remote sensing, impact assessment, containment, control and restoration are still lacking in India and hence impede effective management of plant invasions in the country. It is in this context that an integrated research and policy framework for the management of alien plant invasions in India is proposed.
Occurrence of Invasive Plant in three phytogeographical region of Bilaspur district of Chhattisgarh
The present study deals with comprehensive list of invasive species in the flora of Bilaspur district of Chhattisgarh, India with background information of family, nativity, mode of introduction, flowering and fruiting. 83 species of plant belong to 26 families were documented as invasive plant in all three phytogeographical regions (agricultural land, urban land and protected land). Both native and invasive plants were found in the same region, but the occurrence of invasive species were found high in the urban land (34.58%) in comparison with protected land (29.16%) and agriculture land (25%). Habit wise analysis of invasive species showed 84.52% herbs, followed by 13.09% shrubs and 2.38% climbers. Maximum proportion of invasive plant are native to Tropical America and belongs to family Asteraceae (16), followed by Malvaceae (9), Euphorbiaceae (8), Fabaceae (6), Solanaceae (5), Convolvulaceae (4) and Lamiaceae (4).
Status of Invasive Alien Plant species in Dhankuta Municipality
Journal of research and development, 2023
Invasive alien species are plants, animals, pathogens and other organisms that are non-native to an ecosystem, and which may cause economic or environmental harm or adversely affect human health. At least 179 species of alien plant species are naturalized in Nepal and 26 of them have become invasive with negative impacts on environment and economy. Out of 26 invasive alien species four species are among the 100 of the world's worst invasive alien species. The present study intended to investigate the invasive alien plant species found in Dhankuta Municipality, which has not been explored previously. Present study reported 30 species of invasive alien plant species belong to 13 families of 28 genera. Agro-ecosystems accounted for 40% of the 30 species' IAPS, followed by grasslands and residential areas (31% each), and forests and shrubland (27% each).
Diversity of invasive alien species in Pantnagar flora
2015
Biological diversity faces many threats throughout the world and one of the major threats is caused by invasion of alien species. The present study proves presence of 94 invasive alien species in flora of Pantnagar, Uttarakhand, India. These 94 invasive alien species (IAS) belong to 72 genera, under 33 families 85 species are dicotyledons while 9 species are monocotyledons. On the basis of their nativity maximum IAS have their sourced region as American continents (74), followed by Africa (8), Europe (5), Mediterranean (3) and Asia & Australia (2). The taxonomic analysis of IAS reveals dominance of Asteraceae with 18 spp. followed by Fabaceae, Amaranthaceae, Convolvulaceae, Malvaceae, Solanaceae, Poaceae etc. Among these, 78 IAS are herbs followed by shrubs (8), grasses (4), sedges (2), trees (1), and climber (1). Such a large number of invasive alien species in small area of Pantnagar, indicate miserable condition of natural vegetation.
Pleione 7(2): 305 - 313. 2013, 2013
Pleione 7(2): 305 -313. 2013. A study was carried out to assess the phytosociology of the invasive alien plants along the altitudinal gradient in Darjiling Himalaya with information on family, growth form and nativity. A total of 66 invasive alien species belonging to 26 families have been recorded. The analysis revealed that most of the species were reported from American sub-continent. Majority of the species were found to be introduced unintentionally and the distribution was maximum towards the temperate zone. Proper management strategies are required to understand the invasion and colonization of these alien species in this region.
Status of Invasive Alien Plant Species in Urban Forest of Hetauda, Nepal
Forestry: Journal of Institute of Forestry, Nepal, 2021
This paper explores the status of Invasive Alien Plant Species in an urban forest of Hetauda, Nepal. The study is based on a quadrate survey (130 quadrants) within the transect line at an interval of 30 m within different six habitat types. This study identified a total of 22 invasive alien plant species representing 20 genera and 12 families out of recorded 26 species representing 24 genera and 15 families in the country. This study identified four species namely Chromolaena odorata, Eichhornia crassipes, Lantana camara and Mikania micrantha in the study area that were listed as the world’s 100 worst invasive species. The invasion was found to be negatively correlated with canopy cover. The higher the canopy cover; the lower the abundance of invasive alien species. Regarding the habitat type, settlement area had the highest number of invasive species followed by forest and roadside. Mikania micrantha, Lantana camara, Ageratum houstonianum and Chromolaena odorata were mostly abundan...
Catalogue of invasive alien flora of India
The present study deals with comprehensive list of invasive alien species in the flora of India with background information on family, habit and nativity. Total 173 invasive alien species belonging to 117 genera under 44 families were documented. It was prepared based on history, species origin, species behavior and field observations. Literature and websites were consulted extensively for relevant publications. Almost 80% of the species were introduced from neotropics. Tropical America (74%) and Tropical Africa (11%) contribute maximum proportion to the invasive alien flora of India. Habit wise analysis shows herbaceous species share 151 species, followed by shrubs , climbers (5) and trees (3). A better planning is needed for early detection and reporting of infestations of spread of new and naturalized weeds to monitor and control.