Functional traits, growth patterns, and litter dynamics of invasive alien and co-occurring native shrub species of chir pine forest in the central Himalaya, India

Kumar, Mukesh; Garkoti, Satish Chandra

doi:10.1007/s11258-021-01140-6

Cited by 24 publications

(7 citation statements)

References 58 publications

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“…leaf area index, chlorophyll and foliar nitrogen) allows for discriminating the presence of alien invasive species (Große-Stoltenberg et al, 2016;Niphadkar and Nagendra, 2016) and together with ecosystem performance information (e.g. carbon cycle) allows for assessing their impact on ecosystem functioning, e.g., productivity (Große-Stoltenberg et al, 2018), nutrient cycling (Kumar and Garkoti, 2021) and energy exchange (Musavi et al, 2015). However, satellite observations are often too coarse (≥ 20m) in their spatial resolution for detecting individual species (Kissling et al 2018;Skidmore et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Advancing terrestrial biodiversity monitoring with satellite remote sensing in the context of the Kunming-Montreal global biodiversity framework

Timmermans

Kissling

2022

Preprint

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Satellite remote sensing (SRS) provides huge potential for tracking progress towards achieving global conservation targets and goals. To make a transformative impact, SRS workflows should be tailored towards the requirements of ecological users and policymakers. Here, we assess requirements from the post-2020 global biodiversity framework of the Convention of Biological Diversity (CBD) by ranking the use of SRS products in biodiversity indicator workflows. Fifty unique indicators were identified for tracking the state of terrestrial biodiversity, spanning two goals and six targets across seventeen target components. Twentynine indicators shared enough information to analyse workflows and to classify underlying (spatial information) products into the Essential Biodiversity Variable (EBV) framework. We further quantified the policy relevance of EBVs by counting EBV usage across the CBD goals and targets. Combined with scores on the technical feasibility, accuracy, and immaturity of SRS products, we then identified which EBVs offer promising opportunities for workflow development from SRS. Top priority SRS products included the fraction of vegetation cover, plant area index profile, above-ground biomass, foliar N/P/K content, land cover (vegetation type), leaf area index, carbon cycle (above-ground biomass), chlorophyll content & flux, ecosystem fragmentation, ecosystem structural variance, and gross primary productivity. Our results showed that spatial information products related to ecosystem distribution, live cover fraction and species distribution EBVs are currently most widely used in the CBD context, while primary production and physiology EBVs remain under-used. To advance the monitoring of ecosystem distributions, harmonized and high resolution SRS products with higher thematic detail on specific ecosystems and habitat types are needed. Likewise, live cover fraction EBVs (e.g. fraction of vegetation cover and plant area index profile) would require developing and harmonizing ecosystem taxonomies and relating the fraction of vegetation (functional) types to a desired ecosystem reference state. Finally, to enable the monitoring of plant species phenology, stoichiometry and alien invasive species (impact), novel workflows need to combine very high resolution and multi-spectral satellite observations for mapping and monitoring the physiological traits of plant species (e.g. leaf area index, chlorophyll content & flux, and foliar N/P/K content). Capitalizing on these opportunities for SRS-enabled EBVs could improve the tracking of CBD goals and targets, e.g. in the context of ecosystem restoration, productivity and sustainability of agricultural and forested ecosystems, effective management of protected areas, reduction of species extinction rates, or a better management of the impact of alien invasive species.

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Section: Discussionmentioning

confidence: 99%

Advancing terrestrial biodiversity monitoring with satellite remote sensing in the context of the Kunming-Montreal global biodiversity framework

Timmermans

Kissling

2022

Preprint

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“…where, R=Decomposition rate (g/day), T=Time/period of observation (day), Wo=The initial mass (g), Wt=The weight of litter at each time/period of observation (T). Comparison of decomposition rates for different types of land use (complex agroforestry, simple agroforestry, and candlenut monoculture) were analyzed using one-way ANOVA Subsequently, the honestly significant difference test (HSD) is used to test differences among samples for significance [22][23][24][25]. Differences were evaluated at P < 0.05.…”

Section: Decomposition Ratementioning

confidence: 99%

Soil Macrofauna Diversity and Litter Decomposition Rate in the Buffer Zone of Lore Lindu Biosphere Reserve Indonesia

Zulkaidhah¹,

Wardah²,

Saleh³

et al. 2022

IJDNE

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Conversion of forest to agricultural land (agroforestry and monoculture) has a negative impact on soil macrofauna diversity. Soil macrofauna have a key role in maintaining soil fertility through decomposition and supporting the productive capacity of ecosystems. This study aimed at determining the soil macrofauna diversity and the litter decomposition rate in agroforestry and monoculture and investigating the correlation between soil macrofauna diversity and litter decomposition rate. This study involved field and laboratory activities. Litter traps were installed for soil macrofauna observation, macrofauna identification was carried out in the laboratory, and litter bags were used for decomposition rate observation. Data analysis was conducted to determine species diversity and similarity of soil macrofauna on agroforestry and monoculture plantations. The calculation of the diversity index (H’) shows that complex agroforestry and simple agroforestry have moderate, while candlenut monoculture has low diversity of soil macrofauna. The similarity of soil macrofauna in these sites is low (similarity index below 50%). The decomposition rate of litter is relatively high (0.01 g/day). The correlation between species diversity and the decomposition rate of litter in complex agroforestry and candlenut monoculture is very strong. Meanwhile, in simple agroforestry, the correlation is relatively low.

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“…Previous studies have frequently linked seed germination characteristics and other functional traits to plant invasiveness. For instance, compared to the native species, the invasive species were found to have higher germination percentage, rate (Guido et al, 2017) and showed higher SLA, RGR, leaf mass ratio, and shoot mass ratio (Dawson et al, 2011; Kumar & Garkoti, 2021; Leishman et al, 2014; Rejmánek et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Germination ecology and seedling growth of invasive Ageratum species and allied native Adenostemma lavenia

Airi,

Dangol,

Shrestha

et al. 2023

Weed Biology and Management

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The success of invasive plants can be better understood by comparing their traits with closely related native species. This study compared germination ecology and seedling growth of invasive Ageratum houstonianum and Adenostemma conyzoides with co‐occurring and allied native Adenostemma lavenia. Seeds were germinated under a different light (12 h photoperiod/complete dark), temperatures (low: 25°C/15°C day/night, and high: 30°C/20°C), and different levels of water stress (−0.1, −0.25, −0.5, −0.75, and −1 MPa). Seedlings were grown to determine biomass allocation, relative growth rate (RGR), plant height, and number of leaves. The seed mass and size of native A. lavenia were higher than those of invasive species. Seeds of all species were positively photoblastic. At low temperature and in all levels of water stress, all measured parameters except mean germination time were the highest in A. houstonianum. However, at high temperature, there was no significant difference in germination percentage between A. houstonianum and A. lavenia. No germination of A. conyzoides and A. lavenia was recorded beyond −0.5 MPa water potential, but seeds of A. houstonianum germinated up to −0.75 MPa. A. houstonianum had higher root mass fraction, root‐to‐shoot ratio, and number of leaves than the other two species. Stem mass fraction and the height of seedling were highest in A. conyzoides. The RGR was 1.6 times higher in invasive Ageratum species than the native species; it was slightly higher in A. houstonianum than in A. conyzoides. Overall, the results suggest that germination traits and seedling growth performance can be used as predictors of a species' invasiveness.

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Functional traits, growth patterns, and litter dynamics of invasive alien and co-occurring native shrub species of chir pine forest in the central Himalaya, India

Cited by 24 publications

References 58 publications

Advancing terrestrial biodiversity monitoring with satellite remote sensing in the context of the Kunming-Montreal global biodiversity framework

Advancing terrestrial biodiversity monitoring with satellite remote sensing in the context of the Kunming-Montreal global biodiversity framework

Soil Macrofauna Diversity and Litter Decomposition Rate in the Buffer Zone of Lore Lindu Biosphere Reserve Indonesia

Germination ecology and seedling growth of invasive Ageratum species and allied native Adenostemma lavenia

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