Direct plant–plant facilitation in coastal wetlands: A review

Zhang, Liwen; Shao, Hongbo

doi:10.1016/j.ecss.2013.01.002

Cited by 39 publications

(24 citation statements)

References 62 publications

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“…wwt.org.uk/). Por otro lado, cuando estos ambientes son destruidos existen alternativas de restauración, sin embargo constituyen técnicas costosas, requieren de un conocimiento detallado del ecosistema para su manejo adaptativo y que su necesidad se inserte en políticas públicas, estas últimas de lenta generación (Hackney, 2000, Kentula, 2000, Zhang & Shao, 2013, Tenório et al, 2015. En Concepción existe la oportunidad de innovar y crear proyectos urbanos que incorporen criterios ecológicos y de arquitectura del paisaje para crear espacios de conservación y de transición que incluso pueden tener uso recreativo y educativo.…”

Section: Discusión Y Conclusiónunclassified

Patrones de urbanización en la biodiversidad de humedales urbanos en Concepción metropolitano

Rojas¹,

Sepúlveda-Zúñiga²,

Barbosa³

et al. 2015

Rev. geogr. Norte Gd.

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RESUMENLa urbanización en Concepción metropolitano (36°S) en las últimas décadas ha impactado áreas de valor ecológico, tales como humedales y lagunas. Aquí analizamos la perturbación de parámetros de biodiversidad en seis humedales urbanos, mediante la exploración y uso de indicadores. Se proponen tres indicadores: naturalidad y riqueza de macrolepidópteros y plantas, los que se evalúan mediante modelos de regresión múltiple. Los resultados indican que los humedales con menor grado de perturbación antrópica se encuentran ubicados dentro de una reserva protegida y rodeados de una matriz de paisaje seminatural; mientras que los más perturbados están más próximos a la urbanización. Además, la riqueza de macrolepidópteros se ve más afectada por la distancia a carreteras, en cambio la riqueza de plantas por la densidad de viviendas. Se genera una herramienta para la evaluación de efectos de la urbanización en humedales urbanos.Palabras clave: Humedales, Urbanización, Biodiversidad, Naturalidad ABSTRACTUrbanization of the Metropolitan region of Concepción (36°S) in the last decades has impacted on the ecological value of areas such as wetlands and lagoons. Here, we analyse the disturbance to biodiversity indicators in six urban wetlands. Three measures are proposed: a naturalness indicator and two Macrolepidoptera plant indicators of species richness. Multiple regression models were developed for the assessment of indicators. Results show that the wetlands with the lowest degree of human interference are located in a protected area and surrounded by a matrix of semi-natural landscapes, whereas the more disturbed wetlands are those closer to areas of urbanization. Results indicate that macrolepidopterans richness is more affected by the distance to roads, in contrast with the richness of plants, which is affected by housing density. We generated a tool for the assessment of urbanization effects in urban wetlands.

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Section: Discusión Y Conclusiónunclassified

Patrones de urbanización en la biodiversidad de humedales urbanos en Concepción metropolitano

Rojas¹,

Sepúlveda-Zúñiga²,

Barbosa³

et al. 2015

Rev. geogr. Norte Gd.

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“…An improved understanding of the influence of phylogenetic relatedness on species interactions can inform the choice of neighbor species that will enhance survival and growth of target species during coastal ecosystem restoration and revitalization planning. Moreover, both positive and negative interactions are prevalent in coastal ecosystems (Zhang and Shao 2013). And all coastal ecosystems share common stresses, for example, salinity, flood, and nutrient stress, as well as stress due to the physical forces of sea waves, making coastal ecosystems ideal for investigating the relationships between stress and species interactions.…”

Section: Communicated By Iris C Andersonmentioning

confidence: 99%

“…Planting distantly related species can promote growth of the protected species, following the theory of using facilitation in restoration (Halpern et al 2007;Silliman et al 2015;Zhang and Shao 2013). Therefore, regardless of stress levels within the managed ecosystem, the positive effects of neighboring distantly related species on target species should be considered.…”

Section: 763mentioning

confidence: 99%

Phylogenetic Relatedness Influences Plant Interspecific Interactions Across Stress Levels in Coastal Ecosystems: a Meta-Analysis

Zhang

Shao

2016

Estuaries and Coasts

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Positive and negative interactions can occur simultaneously between plant species. According to the stress gradient hypothesis (SGH), species interactions shift towards more facilitative interactions or reductions in competition with increasing stress, whereas debate continues over whether evolutionary history influences the strength of species interactions. However, few studies have investigated the effects of phylogenetic relatedness (i.e., the sum of branch lengths separating species on a phylogeny) on the outcomes of interspecific interactions across stress levels. Therefore, we conducted a Bayesian meta-analysis on data collected from publications on plant interactions within coastal ecosystems in order to investigate the effects of phylogenetic relatedness on interspecific interactions across different stress levels. These analyses showed the effect sizes of species interactions on survival and growth to increase with stress increment, supporting the SGH in coastal ecosystems. However, phylogenetic relatedness did not lead to these differences of interspecific interactions between low and high stress. We found that species interactions affecting plant survival were not significantly influenced by phylogenetic relatedness; however, when evolutionary relationships of target and neighbor species were more phylogenetically distant, their interactions were more likely to facilitate growth of target species. Furthermore, the effect of the interaction between phylogenetic distance and stress on species interactions was negative. This suggests the observed net effects of phylogenetically distant neighbor species on target species were not due to true facilitation but reductions in competition when moving from low stress to high stress environments. According to these results, phylogenetic relatedness should be considered in choosing species for restoration of coastal ecosystem plant communities. Specifically, increasing the phylogenetic breadth of the assemblage is more likely to include species that have evolved to reduce stress on surrounding species through modification of the environment.

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“…Marshes are covered by saturated soils and standing water during certain periods of the year. Therefore, maintaining water balance in the marsh is the key to conserving existing marsh coverage (Zhang and Shao, 2013). Precipitation, evapotranspiration, and runoff are the main factors that affect the marsh water balance.…”

Section: Introductionmentioning

confidence: 99%

Investigating marsh sediment dynamics and its driving factors in Yellow River delta for wetland restoration

Kang

Shao

et al. 2016

Ecological Engineering

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a b s t r a c tThe wetlands of the Yellow River delta play important roles for Asian and west Pacific birds during migration. Marshes are the main component of wetlands in the delta, and their coverage area has experienced a decreasing trend for the last few decades. Wetland changes in the Yellow River delta have been analyzed in previous studies; however, those studies only partially analyzed the causes of the decline. Using statistical and spatial analysis based on observational data and remote sensing imagery for the period of 1986-2005, we found that the annual mean temperature and annual precipitation tended to increase, and the evapotranspiration and the moisture index tended to decrease. Consequently, these climate factors led to a significant decrease in river runoff, which resulted in decreased water supply for the marshes in the delta. A Wetland Restoration Project was launched in 1992, and it successfully conserved marshes within a relatively small area. However, the inadequate water supply still resulted in an overall decrease in marsh area over the entire study area. These results provide more insights into managing wetlands eco-restoration.

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Direct plant–plant facilitation in coastal wetlands: A review

Cited by 39 publications

References 62 publications

Patrones de urbanización en la biodiversidad de humedales urbanos en Concepción metropolitano

Patrones de urbanización en la biodiversidad de humedales urbanos en Concepción metropolitano

Phylogenetic Relatedness Influences Plant Interspecific Interactions Across Stress Levels in Coastal Ecosystems: a Meta-Analysis

Investigating marsh sediment dynamics and its driving factors in Yellow River delta for wetland restoration

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