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来源类型 | Articles |
规范类型 | 论文 |
DOI | 10.1007/s11273-016-9480-4 |
ISSN | 0923-4861 |
Effects of nesting waterbirds on nutrient levels in mangroves, Gulf of Fonseca, Honduras | |
McFadden, T.N.; Kauffman, J.B.; Bhomia, R.K. | |
发表日期 | 2016 |
出处 | Wetlands Ecology and Management 24(2): 217-229 |
出版年 | 2016 |
语种 | 英语 |
摘要 | Mangroves provide numerous ecosystem services, including biodiversity values such as nesting sites for piscivorous waterbirds. High concentrations of waterbirds at nest sites are hypothesized to affect ecosystem dynamics, yet few studies have examined their effects as a nutrient source in mangroves. We examined the effects of nutrient enrichment by colonial waterbirds at a mangrove rookery in the Gulf of Fonseca, Honduras. We compared nutrient inputs via bird guano deposition and macronutrient levels in the vegetation and soils between a small island that hosted large numbers of roosting waterbirds and an adjacent island with little evidence of waterbird activity. Nest density at the rookery was 1721 ± 469 nests ha-1. Rookery birds deposited 7.2 ± 3.4 g m-2 day-1 guano dry weight, delivering an estimated 1.12 Mg ha-1 nitrogen and 0.16 Mg ha-1 phosphorus to the island over a 120 day breeding season. This large nutrient influx contributed to substantially higher concentrations of biologically important nutrients in the rookery soils (seven times more plant available phosphorus, eight times more nitrate, and two times more ammonium). Rookery mangrove leaves contained significantly higher concentrations of nitrogen and phosphorus compared to the control site. These results suggest that colonial waterbirds significantly influence nutrient dynamics of mangroves at local scales. Further research is needed to understand the effects of avian derived nutrients on mangrove growth rates, nutrient export to adjacent waters, invertebrate communities, and mangrove associated fisheries. |
主题 | mangroves ; ecosystem services ; macronutrients ; nutrient cycling |
区域 | Honduras |
URL | https://www.cifor.org/library/6000/ |
来源智库 | Center for International Forestry Research (Indonesia) |
引用统计 | |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/93292 |
推荐引用方式 GB/T 7714 | McFadden, T.N.,Kauffman, J.B.,Bhomia, R.K.. Effects of nesting waterbirds on nutrient levels in mangroves, Gulf of Fonseca, Honduras. 2016. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
09234861.jpg(7KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
AKauffman1601.pdf(1702KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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