亚马逊中部低营养湿地中体型较大的鱼散播较大的种子

IF 1.8 4区 环境科学与生态学 Q3 ECOLOGY Wetlands Pub Date : 2024-01-22 DOI:10.1007/s13157-024-01779-7
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引用次数: 0

摘要

摘要 鱼类可以作为许多植物物种的传播媒介,这种互惠关系对于亚马逊可淹没森林的结构和再生至关重要。然而,人类活动造成的威胁,如滥伐可淹没森林和过度捕捞某些物种,可能会破坏这种互惠互动关系。我们研究了可淹没森林中食用果实和种子的鱼类的大小与从鱼类体内获取的种子大小之间的关系。我们假设,在可淹没森林中,体型较大的鱼类会散播较大的种子。在九种食俭鱼的消化道中发现了 16 种植物的共 1,054 粒种子。鱼的体长和体重与消化道中发现的种子大小呈正相关。鱼类数量和体型的减少可能会影响植物的传播和再生,尤其是种子较大的物种。考虑到鱼类与亚马逊森林湿地之间的相互作用面临多种威胁,我们的研究强调了充分管理渔业资源和可淹没森林对维持该地区这些环境的生态系统服务的重要性。
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Larger Fish Disperse Larger Seeds in Oligotrophic Wetlands of the Central Amazon

Abstract

Fish can act as dispersal vectors for many plant species, and this mutualistic relationship is critical for structuring and regeneration in Amazonian floodable forests. However, anthropogenic threats, such as the deforestation of floodable forests and the overfishing of some species, can disrupt this mutualistic interaction. We investigated the relationship between the size of fish that consume fruits and seeds and the size of seeds retrieved from the fish in the floodable forests. We hypothesize that, in floodable forests, fish with larger body size disperse the larger seeds. A total of 1,054 seeds from 16 plant species were found in the digestive tracts of nine species of frugivorous fish. The length and weight of the fish were positively related with the size of the seeds found in the digestive tracts. The reduction in fish abundance and size may affect dispersal and regeneration, especially of species with larger seeds. Considering the diverse threats to interactions between fish and Amazonian forested wetlands, our study highlights the importance of adequate management of fishery resources and floodable forests for the maintenance of ecosystem services of these environments in the region.

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来源期刊
Wetlands
Wetlands 环境科学-环境科学
CiteScore
4.00
自引率
10.00%
发文量
108
审稿时长
4.0 months
期刊介绍: Wetlands is an international journal concerned with all aspects of wetlands biology, ecology, hydrology, water chemistry, soil and sediment characteristics, management, and laws and regulations. The journal is published 6 times per year, with the goal of centralizing the publication of pioneering wetlands work that has otherwise been spread among a myriad of journals. Since wetlands research usually requires an interdisciplinary approach, the journal in not limited to specific disciplines but seeks manuscripts reporting research results from all relevant disciplines. Manuscripts focusing on management topics and regulatory considerations relevant to wetlands are also suitable. Submissions may be in the form of articles or short notes. Timely review articles will also be considered, but the subject and content should be discussed with the Editor-in-Chief (NDSU.wetlands.editor@ndsu.edu) prior to submission. All papers published in Wetlands are reviewed by two qualified peers, an Associate Editor, and the Editor-in-Chief prior to acceptance and publication. All papers must present new information, must be factual and original, and must not have been published elsewhere.
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