Insect pollination and self-planting seed dispersal strategy in the true viviparous mangrove tree species Ceriops tagal (Perr.) C.B. Robinson (Rhizophoraceae)

Jonathan, K. H.; Raju, A. J. S.

doi:10.11609/jott.o1854.133-40

Cited by 6 publications

(5 citation statements)

References 22 publications

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“…This practice could be justified in the light of predominant entomophilous sexual reproduction in mangroves, the success of which is linked with the success of cross-pollination and pollinator activity. However, in the absence of a favorable ecological niche for outcrossing, their reproductive potential gets impaired 63 – 65 .…”

Section: Discussionmentioning

confidence: 99%

“…Under the second objective, the quantifiable metrics utilized to evaluate the success of restoration are (1) species composition, richness, function and structure of mangroves 44 , 45 ; (2) edaphic factors, physical and biochemical 44 , 45 ; (3) genomic abundance and density profile of nutrient-cycler microbiota in sediment 55 – 57 ; (4) osmotic acclimation of mangrove species 30 ; (5) reproductive/pollination success, pollinator diversity, frequency of visits 63 – 65 ; (6) epifaunal diversity and abundance 53 , 54 ; (7) post-planting onsite natural colonization/recruitment of seedlings 66 .…”

Section: Introductionmentioning

confidence: 99%

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Ecological restoration at pilot-scale employing site-specific rationales for small-patch degraded mangroves in Indian Sundarbans

Ray,

Basak,

Giri

et al. 2024

Sci Rep

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To date, degraded mangrove ecosystem restoration accomplished worldwide primarily aligns towards rehabilitation with monotypic plantations, while ecological restoration principles are rarely followed in these interventions. However, researchers admit that most of these initiatives' success rate is not appreciable often. An integrative framework of ecological restoration for degraded mangroves where site-specific observations could be scientifically rationalized, with co-located reference pristine mangroves as the target ecosystem to achieve is currently distinctively lacking. Through this experimental scale study, we studied the suitability of site-specific strategies to ecologically restore degraded mangrove patches vis-à-vis the conventional mono-species plantations in a highly vulnerable mangrove ecosystem in Indian Sundarbans. This comprehensive restoration framework was trialed in small discrete degraded mangrove patches spanning ~ 65 ha. Site-specific key restoration components applied are statistically validated through RDA analyses and Bayesian t-tests. 25 quantifiable metrics evaluate the restoration success of a ~ 3 ha degraded mangrove patch with Ridgeline distribution, Kolmogorov–Smirnov (K-S) tests, and Mahalanobis Distance (D2) measure to prove the site’s near-equivalence to pristine reference in multiple ecosystem attributes. This restoration intervention irrevocably establishes the greater potential of this framework in the recovery of ecosystem functions and self-sustenance compared to that of predominant monoculture practices for vulnerable mangroves.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological restoration at pilot-scale employing site-specific rationales for small-patch degraded mangroves in Indian Sundarbans

Ray,

Basak,

Giri

et al. 2024

Sci Rep

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“…Since M. capitata occurs either in small patches or in pure stands, it provides the required levels of nutrients through its pollen and nectar to local insects. The same insects also effect pollination of true mangrove plant species which occur at different salinity zones from land side to sea side (Jonathan & Solomon Raju 2009). Therefore, flower-insect interactions of M. capitata play an important role in supporting pollinator species of true mangrove species in all areas of its distribution.…”

Section: Recommendationsmentioning

confidence: 99%

“…Theob. ; both are adapted for insect pollination (Jonathan & Solomon Raju, 2009;Solomon Raju & Jonathan, 2008;Solomon Raju et al, 2006). Except for these studies, there is no information available on the pollination biology of other mangrove species, especially so for the so-called mangrove associates.…”

Section: Introductionmentioning

confidence: 99%

Mixed Breeding System and Entomophily in Malachra capitata L. (Malvaceae)

Raju

2013

TAPROBANICA

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Malachra capitata is a small seasonal herb. Flowering occurs during September-October. It is hermaphroditic and self-compatible with a mixed breeding system. The conspicuous floral displays, non-tubular nature of the flower, and the small volume of nectar with high sugar concentration attract bees and butterflies with bees serving as the principal pollinator. The fruit set is 21% in openpollination mode despite the hectic foraging activity of bees and butterflies. The observed fruit set rate is attributed to the high percentage of flower predation by beetles, and by the nature of soil nutrient/environment requirements. The fruit is a schizocarp with five 1-seeded indehiscent mericarps. New plants arise from seed during the rainy season mostly at parental sites and usually form pure stands; the plants complete their life cycle within six or seven months.

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“…Surprisingly, less is known about floral biology, pollination, and breeding systems, although knowledge of the effectiveness of floral mechanics and genetic isolating mechanisms is an important prerequisite to the study of successful dispersal and establishment (Primack et al, 1981;Tomlinson, 1986;Juncosa and Tomlinson, 1987;Clarke and Meyerscough, 1991;Azuma et al, 2002;Ge et al, 2003;Chiou-Rong et al, 2005;Coupland et al, 2006). In India, a few studies provide some preliminary accounts of floral biology and pollination in some mangrove plants (Solomon Raju, 1990;Solomon Raju et al, 1994;Subba Reddi and Solomon Raju, 1997;Solomon Raju and Jonathan, 2008;Jonathan and Solomon Raju, 2009;Pandit and Choudhury, 2001;Jonathan, 2009;Rama Mohan, 2009). The available information relates to viviparous and crypto-viviparous species, but not non-viviparous true mangroves or mangrove associate species.…”

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confidence: 99%

Reproductive Biology of Mangrove PlantsClerodendrum inerme, Derris trifoliata, Suaeda maritima, Suaeda monoica, Suaeda nudiflora

Aluri

Kumar

Chappidi

2016

Transylvanian Review of Systematical and Ecological Research

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Floral biology, sexual system, breeding system, pollinators, fruiting and seed dispersal aspects of five mangrove associate species, namely, Clerodendrum inerme, Derris trifoliata, Suaeda maritima, S. monoica, and S. nudiflora were studied. All these species are hermaphroditic, self-compatible, and exhibit mixed breeding systems adapted for pollination by external agents. C. inerme and D. trifoliata are principally entomophilous, while Suaeda species are ambophilous. The study suggests that these plant species are important constituents of mangrove forests. C. inerme and D. trifoliata are useful in stabilizing the banks of back water creeks, while Suaeda species are useful to carpet the saline areas and desalinate the soils which are subsequently useful for agricultural activities. Articolul prezintă studiul asupra biologiei florale, sistemului sexual, sistemului de creștere, polenizatorilor, rodirii și răspândirii semințelor la cinci specii de mangrove asociate, Clerodendrum inerme, Derris trifoliata, Suaeda maritima, S. monoica și S. nudiflora. Toate aceste specii sunt hermafrodite, auto compatibile și prezintă sisteme de creștere mixte adaptate pentru polenizare de către agenții externi. C. inerme și D. trifoliata sunt în principal entomofile în timp ce speciile Suaeda sunt ambophilous. Studiul sugerează că aceste specii de plante sunt constituenți importanți ai pădurilor de mangrove. C. inerme și D. trifoliata sunt utile în stabilizarea malurilor cursurilor de apă, în timp ce speciile Suaeda sunt utile pentru covorul zonelor saline și desalinizarea solurilor care sunt ulterior utile pentru activități agricole. ZUSAMMENFASSUNG: J. S. R. Aluri et al. -Reproductive biology of mangrove plants (31 ~ 68) 32 INTRODUCTIONMangrove conservation has received an increased importance in the recent past as research has increased the understanding of the values, functions, and attributes of mangrove ecosystems and the role they play in providing important ecological services and livelihoods for the mangrove associated communities. Mangrove forests are among one of the world's most productive tropical ecosystems. They are now one of the most threatened ecosystems in the world due to natural and demographic pressures (Roy and Krishnan, 2005). The mangrove vegetation is comprised of unique plant communities consisting of evergreen trees and shrubs belonging to several unrelated families growing in tropical and subtropical intertidal regions where there is constant intertidal exchange of sea water and freshwater (Spalding et al., 1997).The focus of research on the reproductive biology of mangrove plants has almost exclusively been on the fruit and seed or seedling dispersal stage. Surprisingly, less is known about floral biology, pollination, and breeding systems, although knowledge of the effectiveness of floral mechanics and genetic isolating mechanisms is an important prerequisite to the study of successful dispersal and establishment (Primack et al., 1981;Tomlinson, 1986;Juncosa and Tomlinson, 1987;Clarke and Meye...

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Insect pollination and self-planting seed dispersal strategy in the true viviparous mangrove tree species Ceriops tagal (Perr.) C.B. Robinson (Rhizophoraceae)

Abstract: Insect pollination and self-planting seed dispersal strategy in the true viviparous mangrove tree species, Ceriops tagal (Perr.) C.B. Robinson (Rhizophoraceae).

Cited by 6 publications

References 22 publications

Ecological restoration at pilot-scale employing site-specific rationales for small-patch degraded mangroves in Indian Sundarbans

Ecological restoration at pilot-scale employing site-specific rationales for small-patch degraded mangroves in Indian Sundarbans

Mixed Breeding System and Entomophily in Malachra capitata L. (Malvaceae)

Reproductive Biology of Mangrove PlantsClerodendrum inerme, Derris trifoliata, Suaeda maritima, Suaeda monoica, Suaeda nudiflora

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