Mangrove Recruitment After Forest Disturbance Is Facilitated by Herbaceous Species in the Caribbean

McKee, Karen L.; Rooth, J.; Feller, Ilka C.

doi:10.1890/06-1614.1

Cited by 124 publications

(100 citation statements)

References 55 publications

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“…For example, they suggest that planting seedlings in highdensity clusters is a better strategy than spacing them to avoid competition. Two field studies provide indirect evidence in support of this by showing facilitation between mangroves and other species at high tidal sites (Milbrandt & Tinsley 2006;McKee et al 2007b). Theoretical support comes from the stress gradient hypothesis, at least in general terms (Brooker et al 2008): defining 'stress', however, is difficult.…”

Section: Resultsmentioning

confidence: 99%

“…At present, we do not know the mechanisms underlying this enhanced survival. The amelioration of local microclimate through self-shading and rhizosphere oxygenation (McKee et al 2007b) or optimization of soil surface elevation (Morris 2007) are possibilities, particularly at the high tidal site. The sediment accretion rate of 15.6 mm yr 21 at our high-density treatment in Sri Lanka is among the highest on record for a healthy mangrove site (that does not involve sudden discharges of sediment from eroding watersheds, e.g.…”

Section: Resultsmentioning

confidence: 99%

“…Our 'pioneer' A. marina had significantly higher rates of damage than the other two species and there was no reduction in their leaf damage when grown in mixtures. Increased recruitment may also arise through the passive trapping of floating seeds and propagules (McKee et al 2007b). However, the significantly higher mortality rates of experimental C. tagal propagules planted in control, C and BC treatments compared with treatments containing A. marina suggest that environmental amelioration is important.…”

Section: Discussionmentioning

confidence: 99%

“…Facilitation theory questions this assumption, suggesting that positive interactions among individuals and species may enhance survival and growth, particularly in harsh environments such as the intertidal zone (Bertness & Hacker 1994;Brooker et al 2008). Experiments in the Caribbean (McKee et al 2007b) and Florida (Milbrandt & Tinsley 2006) demonstrate that small saltmarsh plants may act as benefactor species enhancing recruitment and survival of mangroves at high intertidal sites. There are no published experimental demonstrations of positive intra-or interspecific effects of mangrove species themselves on mangrove survival, recruitment or growth.…”

Section: Introductionmentioning

confidence: 99%

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Intra- and interspecific facilitation in mangroves may increase resilience to climate change threats

Huxham

Kumara

Jayatissa

et al. 2010

Phil. Trans. R. Soc. B

105

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Mangroves are intertidal ecosystems that are particularly vulnerable to climate change. At the low tidal limits of their range, they face swamping by rising sea levels; at the high tidal limits, they face increasing stress from desiccation and high salinity. Facilitation theory may help guide mangrove management and restoration in the face of these threats by suggesting how and when positive intra-and interspecific effects may occur: such effects are predicted in stressed environments such as the intertidal, but have yet to be shown among mangroves. Here, we report the results of a series of experiments at low and high tidal sites examining the effects of mangrove density and species mix on seedling survival and recruitment, and on the ability of mangroves to trap sediment and cause surface elevation change. Increasing density significantly increased the survival of seedlings of two different species at both high and low tidal sites, and enhanced sediment accretion and elevation at the low tidal site. Including Avicennia marina in species mixes enhanced total biomass at a degraded high tidal site. Increasing biomass led to changed microenvironments that allowed the recruitment and survival of different mangrove species, particularly Ceriops tagal.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Intra- and interspecific facilitation in mangroves may increase resilience to climate change threats

Huxham

Kumara

Jayatissa

et al. 2010

Phil. Trans. R. Soc. B

105

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“…Without a protective mangrove buffer along the shoreline, these islands may rapidly erode. Observations at older sites (Twin Cays) showed rapid shoreline retreat (up to 0.3 m per year) where mangroves had been removed in 1992 (McKee et al, 2007b). …”

mentioning

confidence: 99%

Proceedings of the Smithsonian Marine Science Symposium

Lang¹,

Macintyre²,

Rützler³

2009

Smithsonian Contributions to the Marine Sciences

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s m i t h s o n i a n c o n t r i b u t i o n s t o t h e m a r i n e s c i e n c e s • n u m b e r 3 8 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTIONEmphasis upon publication as a means of "diffusing knowledge" was expressed by the fi rst Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Botany Smithsonian Contributions in History and Technology Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Museum Conservation Smithsonian Contributions to Paleobiology Smithsonian Contributions to ZoologyIn these series, the Institution publishes small papers and full-scale monographs that report on the research and collections of its various museums and bureaus. The Smithsonian Contributions Series are distributed via mailing lists to libraries, universities, and similar institutions throughout the world.Manuscripts submitted for series publication are received by the Smithsonian Institution Scholarly Press from authors with direct affi liation with the various Smithsonian museums or bureaus and are subject to peer review and review for compliance with manuscript preparation guidelines. General requirements for manuscript preparation are on the inside back cover of printed volumes. For detailed submissions requirements and to review the "Manuscript Preparation and Style Guide for Authors," visit the Submissions page at www.scholarlypress.si.edu. The paper used in this publication meets the minimum requirements of the American National Standard for Permanence of Paper for Printed Library Materials Z39. Foreword N early two-thirds of Earth's surface is covered by the ocean, a global system essential to all life. Impacts on one part of the ocean can have worldwide effects. The ocean moderates our climate, provides valuable resources, and produces at least half the oxygen we breathe: it makes our planet livable. We know little, however, about the physical, chemical, geological, and biological aspects of this crucial life support system. s m i t h s o n i a n c o n t r i b u t i o n s t o t h e m a r i n S M I T H S O N I A N C O N T R I B U T I O N S T O T H E M A R I N E S C I E N C E S MARINE BIODIVERSITY, EVOLUTION, AND SPECIATION S M I T H S O N I A N C O N T R I B U T I O N S T O T H E M A R I N E S C I E N C E S i i i • S M I T H S O N I A N C O N T R I B U T I O N S T O T H E M A R I N E S C I E N C E SThe Smithsonian Institution, in efforts to increase knowledge about the ocean, has established a ...

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Microtopographic structures facilitate plant recruitment across a saltmarsh tidal gradient

Wang

Cui

Luo

et al. 2019

Aquatic Conservation

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It is well known that establishment limitation is stronger than seed limitation in aquatic ecosystems. Therefore, it seems crucial during the recruitment recovery process to overcome this establishment limitation on bare or degraded patches. Microtopographic structures have been shown to act as trap agents in saltmarshes. They can facilitate establishment, but this effect has not been quantitatively examined and assessed. This study examined the facilitative effect of microtopographic structures on plant recruitment in a dynamic saltmarsh system by conducting a series of field experiments along a saltmarsh tidal gradient. A simple plant life‐cycle model was used to evaluate the dynamics of the plant recruitment process facilitated by microtopographic structure and the importance of each life stage. The influence of abiotic factors on each life stage was also assessed, to identify the determinants during the life history. It was revealed that seed retention was the limiting factor in a bare saltmarsh area, rather than seed dispersal. Microtopographic structures can provide trap agents to facilitate seed anchorage. During seed retention, the stability of the microtopographic structure, especially its relative surface elevation difference, can be influenced by tidal events and the associated sediment process, which then affects seed retention efficiency. Microtopographic structure has a strong environmental filtering effect that can revise the potential dispersed seed and emergence patterns, and the determinant of the final establishment pattern along a tidal gradient is the retention pattern resulting from the interactions between microtopographic structures and tidal events. Furthermore, it can be designed into the early stage of recovery or restoration process so that it facilitates pioneer plant establishment. These early recruitment patches will speed up the recovery or succession process by (1) providing local seed sources, (2) retaining more seeds via the established vegetative structures, and (3) modifying microhabitat factors.

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Mangrove Recruitment After Forest Disturbance Is Facilitated by Herbaceous Species in the Caribbean

Cited by 124 publications

References 55 publications

Intra- and interspecific facilitation in mangroves may increase resilience to climate change threats

Intra- and interspecific facilitation in mangroves may increase resilience to climate change threats

Proceedings of the Smithsonian Marine Science Symposium

Microtopographic structures facilitate plant recruitment across a saltmarsh tidal gradient

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