Roadside Distribution Patterns of Invasive Alien Plants Along an Altitudinal Gradient in Arunachal Himalaya, India

Kosaka, Yasuyuki; Saikia, Bhaskar; Mingki, Tasong; Tag, Hui; Riba, Tomo; Ando, Katsuhiko

doi:10.1659/mrd-journal-d-10-00036.1

Cited by 43 publications

(28 citation statements)

References 16 publications

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“…In India, Adhikari et al (2015) identified invasion hotspots containing the diverse signature of human activities, and are characterized by 5 major anthropogenic biome types and 18 sub-types. Kosaka et al (2010) suggested that recent construction and use of roads assists the establishment of invasive alien plants in the Himalayan region of Arunachal Pradesh. In addition, the use of edaphic predictors significantly affects the model performance and enhances the accuracy compared to those constructed only with climate variables Velazco et al (2017).…”

Section: Discussionmentioning

confidence: 99%

Plant invasion correlation with climate anomaly: an Indian retrospect

Tripathi

Roy

2019

Biodivers Conserv

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Plant invasion is highly responsive to rising temperature, altered precipitation and various anthropogenic disturbances. Therefore, climate anomalies might provide opportunities to identify the relationship of past climate in deriving the distribution of invasive species and to detect their probable future distribution. In this work, we studied the correlation of climate anomaly i.e. temperature and precipitation with an indicative map of plant invasive species (1° grid) of India. The indicative map was generated through the plant data available from the project 'Biodiversity Characterization at Landscape Level'. Climate anomaly was calculated and represented by average temperature and precipitation using 'Climate Research Unit' data for the period of 1901 to 2000. A comparison of local geographically weighted regression (GWR) model and a global ordinary least square regression (OLS) model was carried out for statistical analysis to depict the correlation at 1° spatial grids. Overall, 20,501 records with a total of 9112 unique plots and 161 unique invasive species were recorded in the database that shows a maximum of 15 invasive species in a 0.04 ha nested quadrat. Cumulative analysis showed a maximum of 53 invasive species at 1° grid. Individually, GWR could reveal a significant correlation with invasive species distribution for temperature anomaly (r 2 = 0.73, AIC= 2206) and precipitation anomaly (r 2 = 0.74, AIC= 2221), while OLS model did not offer a good correlation (r 2 < 0.001, AIC > 2400) compared to GWR. Combination of temperature and precipitation anomaly (shared model) showed an improved spatial correlation (r 2 > 0.75) using GWR. Variation partitioning revealed the dominant influence (> 0.40 of variation) of temperature anomaly over Deccan Peninsula, Himalaya and North East zone. Influence of precipitation anomaly was more prominent over arid and semi-arid zone explaining > 0.35 of variation. Results revealed the strength of GWR to see the interaction of invasive plant species w.r.t. climate anomalies that explain the influence of spatial variation due to heterogeneity at varying neighbour distances. The significant correlation of invasive species with both the anomalies revealed the affinity of invasive species towards warmer, drier and wet places. This gives an indication that the distribution of invasive species could be triggered by climate anomaly. The use of Communicated by M.

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Section: Discussionmentioning

confidence: 99%

Plant invasion correlation with climate anomaly: an Indian retrospect

Tripathi

Roy

2019

Biodivers Conserv

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“…However, this does not suggest that invasion by A. adenophora and C. odorata along roadsides is not severe. It is well known that roadsides can be conduits for the spread of plant invaders (Gelbard & Belnap, ), and this has also been shown to be the case for these species, which may change community diversity and composition along roadsides and affect road slope stability (Liu et al ., ; Dong et al ., ; Kosaka et al ., ). The paucity of roadside studies in our review may be due to practical considerations of residents of the areas in which these plants are invasive.…”

Section: Discussionmentioning

confidence: 99%

A global systematic review of ecological field studies on two major invasive plant species, Ageratina adenophora and Chromolaena odorata

Akin-Fajiye

Thapa‐Magar

et al. 2016

Diversity and Distributions

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Aim Much of what is known about invasion biology is based on research conducted in North America and Europe, leading to limitations and potential biases in our knowledge. We address these limitations by conducting a systematic review to assess the literature on ecological studies of two major tropical and subtropical invasive plant species, Ageratina adenophora and Chromolaena odorata. Our goals were to: (1) collect the literature on the invasion biology of these species by broadly searching five databases (one international and four regional); (2) determine limitations to the international literature available in the ISI Web of Science (WOS); (3) quantitatively summarize the scope of the invasion literature on the two species; and (4) propose future studies based on what we found.Location Global.Methods Using specific search terms, we searched the literature for A. adenophora and C. odorata in the ISI WOS, Chinese National Knowledge Infrastructure (CNKI), Indian Journals, Nepal Journals Online and African Journals Online (AJOL). We extracted information on journal titles, publication years, study area locations, habitats investigated and study focus.Results We found 101 papers for A. adenophora and 61 papers for C. odorata, published from 1987 to 2015. A high percentage of the studies were conducted in China, western and southern Africa, and India. Studies from WOS most frequently focused on the mechanism of invasion, while studies from CNKI and AJOL focused on the impacts of the invader.Main conclusions Web of Science is not sufficient for generalizing about the invasion biology literature, particularly if the goal is a comprehensive assessment that includes areas other than North America, Hawaii, Europe, Australia, South Africa and New Zealand. In future systematic reviews, other databases should be used if possible, including those in languages other than English. For future research, several research areas should be studied more thoroughly for A. adenophora and C. odorata invasions, including possible multiple factors responsible for invasion, and impacts of co-occurring invasive species.

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“…Abundant information is available in India on weeds in rice (Rao and Nagamani, 2010;Subudhi et al, 2015), in wheat (Punia et al, 2017), cotton (Nalini et al, 2015), sugarcane (Jeyaraman et al, 2002), groundnut (Rajendran and Lourduraj, 1999), soybean (Panneerselvam and Lourduraj, 2000), forests (Meher-Homji, 2005), road sides (Kosaka et al, 2010), aquatic bodies (Deka et al, 2013) and fodder crops (Mukherjee and Tomar, 2015), in different states of India (Munirathnam and Kumar, 2014;Duary et al, 2015). The data collected from different Indian agro-ecological regions over a period of 20 years revealed that most frequently encountered weed species number in Indian agriculture varied from 60 to 70 in humid, per-humid, subhumid, coastal and island ecosystems, 30-40 in semi-arid and 15-20 in arid ecosystems (Dixit et al, 2008).…”

Section: Weeds Of India and Losses Causedmentioning

confidence: 99%

Weed research issues, challenges, and opportunities in India

et al. 2020

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Agriculture is the major source of livelihood for nearly half of the Indian population. However, the productivity of crops is much lower than many countries and needs enhancement to produce ∼400 million tons of food grains for meeting food demands of a population of 1.7 billion by 2050. Diverse climatic conditions in India favor the most adopted weeds to prevail and cause severe crop yield losses. Weeds also degrade quality of the produce, raise cost of production; harbor and serve as alternate hosts to several insect pests and diseases. Parthenium hysterophorus L.; Phalaris minor Retz.; Leptochloa chinensis (L.) Nees.; Echinochloa spp.; weedy rice; Lantana camara L.; Chromolaena odorata (L.) R.M. King & H. Rob.; Mikania micrantha Kunth., are a few of many major weeds of concern currently in India. Weed management in India is critical to improve crops productivity by minimizing weeds caused crop yield losses and to alleviate other adverse effects of weeds in different ecosystems. In spite of the progress made in evolving weed management technologies for different crops and other ecosystems, weeds continue to be a concern in varying ecosystems. The real challenges of Indian weed research are: managing weeds in small farms; non availability of labor and mechanical tools; inadequate information on weed biology and shifts in weed flora; herbicide resistant weeds; lack of understanding on the impact of climate change on weeds and weed control; popularizing integrated weed management with herbicides use by ensuring safe use to avoid adverse effect on human health, environment and avoid weeds developing herbicide resistance and prevention of entry and management of alien invasive weeds. The greatest opportunity of Indian weed science is the potentiality of appropriate weed management technologies to substantially improve the crops productivity. Thus, weed scientists have a greater role to play in the development, popularization and adoption of location specific effective, economical and eco-friendly weed management technologies for different ecosystems of India.

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Roadside Distribution Patterns of Invasive Alien Plants Along an Altitudinal Gradient in Arunachal Himalaya, India

Cited by 43 publications

References 16 publications

Plant invasion correlation with climate anomaly: an Indian retrospect

Plant invasion correlation with climate anomaly: an Indian retrospect

A global systematic review of ecological field studies on two major invasive plant species, Ageratina adenophora and Chromolaena odorata

Weed research issues, challenges, and opportunities in India

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