Comparative study on the floral spectral reflectance of invasive and non-invasive plants

Sooraj, N. P.; Jaishanker, R.; Athira, K.; Sajeev, C.R.; Lijimol, D.; Saroj, K. V.; Dr.Ammini, Joseph; Pillai, Manu S.; Dadhwal, V. K.

doi:10.1016/j.ecoinf.2019.100990

Cited by 8 publications

(7 citation statements)

References 37 publications

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“…Biological invasion is a creeping disaster [52]. Invasive species are quick to cash-in on the degradation of habitat, which is often associated with anthropogenic interference [53, 54].…”

Section: Discussionmentioning

confidence: 99%

Biodiversity clock and conservation triangle: Integrative platform for biodiversity monitoring, evaluation, and preemptive conservation intervention

Jaishanker

Vishnu

Rajan

et al. 2019

Preprint

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25Business-as-usual is no more an option on the table for biodiversity conservation. Disruptive 26 transformation at both policy and polity levels are pressing needs. The possibilities presented by 27 the current wave of information and communication technology can act as travelators to meet the 28 conservation targets. Here, we introduce twin concepts of biodiversity clock and conservation 29 triangle that posit as convergence plane to seamlessly consolidate ongoing discrete efforts and 30 convey real-time biodiversity information in a lucid schematic form. In its present form, the 31 biodiversity clock depicts 12 ecological and 6 biophysical components. The universal 32 consistency in clock-reading facilitates the biodiversity clock to be read and interpreted 33 identically across the world. A ternary plot of the International Union of Conservation of Nature 34 (IUCN) species conservation status is presented as the conservation triangle. Together, the 35 biodiversity clock and the conservation triangle are invaluable in strategizing biodiversity 36 conservation, post-2020. Leveraged smartly, they make possible pre-emptive intervention for 37 biodiversity conservation. 38 Introduction 40 Biological diversity is a strategic investment made by nature that ensures perpetual competition 41 and progressive improvement of life forms. Individual species, like entrepreneurs, scout for 42 opportunities (niches) within and beyond their native habitats. Successful entrepreneurs acquire 43 more niches, gain a competitive edge, and become keystone assets. The synchronized orchestra 44 of different life forms generates value-added (ecosystem) services. As an immaculate 45 bandmaster, nature has designed seamless ways to ensure cooperative-competition among 3 46 different species. However, unlike the notion of collective action in human societies [1], 47individual cost-benefits in the natural schema are conjoined with that of the whole. The splice 48 ensures no free lunch and preempts a proprietary claim to the ecosystem services by any species. 49All species have to contribute in order to enjoy the benefits of value-added services. The system 50 satiates both the micro and macro contributors. While the former gets a habitat, the status of the 51 latter (keystones) is imaginary, sans the former. 52The total productivity of an ecosystem is linked to the individual productivity of all constituent 53 species and is governed by the limiting factor resource [2]. Nature has designed the system in 54 such a way as to predominantly expend the value-added services, in-situ. The design of activities 55 (biotic-biotic, biotic-abiotic and abiotic-abiotic interactions) and the spatio-temporal distribution 56 of resources within (eco) systems, help to generate unique services. Within a stable structural 57 ensemble, ecosystems remain sustainable and productive. Here too, the ingenuity of the 58 bandmaster is on display. Albeit stable, structural ensembles are not rigid. They are amenable to 59 gradual changes, which in-turn coerce the vying...

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“…Biological invasion is a creeping disaster [52]. Invasive species are quick to cash-in on the degradation of habitat, which is often associated with anthropogenic interference [53, 54].…”

Section: Discussionmentioning

confidence: 99%

Biodiversity clock and conservation triangle: Integrative platform for biodiversity monitoring, evaluation, and preemptive conservation intervention

Jaishanker

Vishnu

Rajan

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Several studies have revealed the disruption of native plant-pollinator networks by successful invasive plant species in detriment of native plant species, highlighting thereby one of the key factors of their success ( Ghazoul, 2004 ; Bjerknes et al., 2007 ; Bartomeus et al., 2008 ; Goodell and Parker, 2017 ; Stout and Tiedeken, 2017 ; Burns et al., 2019 ; Parra-Tabla and Arceo-Gomez, 2021 ; Kovács-Hostyánszki et al., 2022 ). Some invasive plants may provide richer nectar, being therefore particularly attractive for pollinators ( Chittka and Schurkens, 2001 ), or more conspicuous flowers that outcompete those of native plants ( Traveset and Richardson, 2006 ; Sooraj et al., 2019 ). They are also usually generalists with respect to pollinators, a strategy that allows them benefiting from the fertilization contribution of local pollinators ( Richardson et al., 2007 ; Parra-Tabla and Arceo-Gomez, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…However, few analyses have focused on the floral color of invasive species and its role and contribution to their ecological success from a pollinator vision perspective. Analyses performed on an Indian community including 22 native and 8 invasive plant species showed that invasive species with higher UV absorbance tended to differ chromatically from native species, a strategy that may increase their attractiveness and discriminability for pollinators ( Sooraj et al., 2019 ). Yet, the strategy adopted by invasive plants may vary significantly according to the characteristics of their ecological niche and those of the surrounding native species.…”

Section: Introductionmentioning

confidence: 99%

Color-advertising strategies of invasive plants through the bee eye

Dessart,

Aguiar,

Tabacchi

et al. 2024

Front. Plant Sci.

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Invasive plants represent a significant global challenge as they compete with native plants for limited resources such as space, nutrients and pollinators. Here, we focused on four invasive species that are widely spread in the French Pyrenees, Buddleja davidii, Reynoutria japonica, Spiraea japonica and Impatiens glandulifera, and analyzed their visual advertisement signals with respect to those displayed by their surrounding native species using a perceptual approach based on the neural mechanisms of bee vision given that bees are regular pollinators of these plants. We collected 543 spectral reflections from the 4 invasive species, and 66 native species and estimated achromatic and chromatic similarities to the bee eye. R. japonica, S. japonica and B. davidii were inconspicuous against the foliage background and could be hardly discriminated in terms of color from their surrounding native plants. These characteristics promote generalization, potentially attracting pollinators foraging on similar native species. Two morphs of I. glandulifera were both highly salient in chromatic and achromatic terms and different from their surrounding native species. This distinctive identity facilitates detection and learning in association with rich nectar. While visual signals are not the only sensory cue accounting for invasive-plant success, our study reveals new elements for understanding biological invasion processes from the perspective of pollinator perceptual processes.

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“…Flower colour has rarely been studied in the context of plant invasions, and only a few studies at the community level have considered visual perception by different pollinators (Makino & Yokoyama 2015; Sooraj et al . 2019). In this work, we assessed the role of different pollination scenarios and abiotic environments as drivers of a potential flower colour variation through native and non‐native ranges in the cosmopolitan invasive plant Nicotiana glauca R. Graham (tree tobacco, Solanaceae).…”

Section: Introductionmentioning

confidence: 99%

Floral colour variation ofNicotiana glaucain native and non‐native ranges: Testing the role of pollinators' perception and abiotic factors

et al. 2023

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Invasive plants displaying disparate pollination environments and abiotic conditions in native and non-native ranges provide ideal systems to test the role of different ecological factors driving flower colour variation.• We quantified corolla reflectance of the ornithophilous South American Nicotiana glauca in native populations, where plants are pollinated by hummingbirds, and in populations from two invaded regions: South Africa, where plants are pollinated by sunbirds, and the Balearic island of Mallorca, where plants reproduce by selfing. Using visual modelling we examined how corolla reflectance could be perceived by floral visitors present in each region. Through Mantel tests we assessed a possible association between flower colour and different abiotic factors.• Corolla reflectance variation (mainly along medium to long wavelengths, i.e. human green-yellow to red colours) was greater among studied regions than within them. Flower colour was more similar between South America and South Africa, which share birds as pollinators. Within invaded regions, corolla reflectance variation was lower in South Africa, where populations could not be distinguished from each other by sunbirds, than in Spain, where populations could be distinguished from each other by their occasional visitors. Differences in corolla colour among populations were partially associated with differences in temperature.• Our findings suggest that shifts in flower colour of N. glauca across native and invaded ranges could be shaped by changes in both pollination environment and climatic factors. This is the first study on plant invasions considering visual perception of different pollinators and abiotic drivers of flower colour variation.

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Comparative study on the floral spectral reflectance of invasive and non-invasive plants

Cited by 8 publications

References 37 publications

Biodiversity clock and conservation triangle: Integrative platform for biodiversity monitoring, evaluation, and preemptive conservation intervention

Biodiversity clock and conservation triangle: Integrative platform for biodiversity monitoring, evaluation, and preemptive conservation intervention

Color-advertising strategies of invasive plants through the bee eye

Floral colour variation ofNicotiana glaucain native and non‐native ranges: Testing the role of pollinators' perception and abiotic factors

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