A performance appraisal of size dependent reproduction and reproductive allocation: A case study of two Inula species from Kashmir Himalaya

Shabir, Peerzada Arshid; Nawchoo, Irshad A.; Wani, Aijaz A.

doi:10.1134/s1067413617050113

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…This decline would be inevitable if more and more carbon were being diverted to ever-increasing V MASW per unit leaf area. Yet reproductive output tends to be proportional to crown area, volume, or vegetative biomass and, far from decreasing, keeps pace with plant size (Thompson et al 1991;Thomas 1996;Greene & Johnson 2004;Weiner 2004;Shabir et al 2017). This continual tracking of reproductive output with size would be impossible if the amount of surplus carbon that could be directed to reproduction decreased with plant size, as would necessarily occur if V MASW increased relative to leaf area.…”

Section: Discussionmentioning

confidence: 99%

Scaling of leaf area with biomass in trees reconsidered: constant metabolically active sapwood volume per unit leaf area with height growth

Olson

Berry

Anfodillo

et al. 2023

Preprint

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¾-power scaling between metabolic rate and body mass is regarded as near-universal across organisms. However, there are compelling reasons to question ¾-power scaling in woody plants, where metabolic rate≈leaf area. This leaf area must provide carbon to the metabolically active sapwood volume (V ). V is necessarily a much smaller volume than total wood volume, meaning that scaling of total leaf area LA with V should be >¾. Within populations of a species, variants in which V increases per unit leaf area with height growth (e.g. ¾ scaling) would have proportionally less carbon for growth and reproduction as they grow taller. Therefore, selection should favor individuals in which, as they grow taller, leaf area scales isometrically with V . Using tetrazolium staining, we measured total V and total leaf area across 22 individuals of Ricinus communis and confirmed that leaf area scales isometrically with V , and that V is much smaller than total sapwood volume. With the potential of the LA -V relationship to shape factors as diverse as the crown area-stem diameter relationship, conduit diameter scaling, reproductive output, and drought-induced mortality, our work suggests that the notion that sapwood increases per unit leaf area with height growth requires revision.

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Section: Discussionmentioning

confidence: 99%

Scaling of leaf area with biomass in trees reconsidered: constant metabolically active sapwood volume per unit leaf area with height growth

Olson

Berry

Anfodillo

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Reproductive allometry related to plant size is thought to be due to environmental variability and is interpreted as an adaptive strategy of plant growth and allocation (Bonser & Aarssen, 2009). Allocating more biomass to functions that maximize vegetative growth is more common under harsh environments (Shabir et al, 2017). For small individuals, large resource investment in reproduction may have a negative influence on future reproduction, growth, or survival (Obeso, 2002;Shibata & Kudo, 2016 of allocation therefore implies trade-offs for T. caespitosum in harsh alpine environments because resources allocated to one function or organ are not available to other functions or organs (Weiner, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Thus, studies examining reproductive allocation need to consider the potential effect of size‐related variation in cushion species. After all, study of size dependence of fitness components is usually the only way to apply life history theory predictions to most herbaceous perennials due to the difficulty in evaluating the age of these plants except where long‐term demographic studies are conducted (Shabir, Nawchoo, & Wani, ).…”

Section: Introductionmentioning

confidence: 99%

Plant size influences abundance of floral visitors and biomass allocation for the cushion plant Thylacospermum caespitosum under an extreme alpine environment

Zhao

Zhang

2019

Ecology and Evolution

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Variation in size may influence the abundance of visitors and reproductive allocation for cushion plants in the extreme alpine environments. To assess effects of plant size on the abundance of main visitors and reproductive allocation in Thylacospermum caespitosum populations at two altitudes, the abundance of the visitors, visiting frequency, total number of flowers, number of fruits, number of unseeded flowers, and reproductive allocation were investigated during the period of reproductive growth. Concurrently, the effects of plant size on the visitors' contributions to fruit setting rate were assessed by a bagging experiment. Our results showed that flies ( Musca domestica and Dasyphora asiatica ) were the main pollinating insects of T. caespitosum , and they could obvious facilitate ( p < 0.05) the fruit setting rate of this cushion plant. Seed set and floral visitation were significantly influenced ( p < 0.001) by plant size. Moreover, the reproductive allocation and fruit setting rate of T. caespitosum was influenced ( p < 0.001) by plant size. More biomass was allocated to reproduction in plants of greater diameter. There is an increase in reproductive success (increases of fruit number with increase in plant size) in relation to plant size. In conclusion, the extent of M. domestica and D. asiatica to facilitate the fruit setting rate mainly depended on the size of T. caespitosum . Size‐dependent reproductive allocation occurred in T. caespitosum and was the chief factor affecting the contribution of flies to fruit setting rate. These traits reflect reproductive fitness of T. caespitosum related to plant size in extreme alpine environments.

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Ethnopharmacology, phytochemistry, agrotechnology, and conservation of Inula racemosa Hook f. – A critically endangered medicinal plant of the western Himalaya

Rathore

Raj

Debnath

et al. 2022

Journal of Ethnopharmacology

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A performance appraisal of size dependent reproduction and reproductive allocation: A case study of two Inula species from Kashmir Himalaya

Cited by 4 publications

References 39 publications

Scaling of leaf area with biomass in trees reconsidered: constant metabolically active sapwood volume per unit leaf area with height growth

Scaling of leaf area with biomass in trees reconsidered: constant metabolically active sapwood volume per unit leaf area with height growth

Plant size influences abundance of floral visitors and biomass allocation for the cushion plant Thylacospermum caespitosum under an extreme alpine environment

Ethnopharmacology, phytochemistry, agrotechnology, and conservation of Inula racemosa Hook f. – A critically endangered medicinal plant of the western Himalaya

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