Stream macroinvertebrate reintroductions: A cautionary approach for restored urban streams

IF 1.7 4区 环境科学与生态学 Q3 ECOLOGY Freshwater Science Pub Date : 2022-09-01 DOI:10.1086/721471
S. Clinton, Jacqueline Hartman, K. Macneale, A. Roy
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引用次数: 7

Abstract

Macroinvertebrate assemblages often remain depauperate in physically restored urban streams despite efforts to improve habitat conditions and increase species abundance and diversity. The lack of biological recovery may be due to a lack of a natural, nearby source of colonists, and this has inspired researchers and practitioners to reintroduce macroinvertebrates in otherwise restored urban streams to jump start the recovery process. However, without standardized guidelines that describe reintroduction best practices, some reintroduction programs may create additional problems (e.g., disease spread, genetic homogenization, population loss). To reduce these risks and limit a potential waste of resources, a cautionary approach is warranted. In this paper we summarize current stream reintroduction knowledge and detail best practices for aquatic macroinvertebrate reintroduction in restored urban streams. We provide criteria that managers can use to determine whether reintroduction is appropriate and demonstrate how researchers can use reintroduction as a tool to test hypotheses regarding factors limiting recolonization. We provide guidance for how to set clear reintroduction goals, select donor sites, determine the number of organisms required, establish reintroduction frequency and timing, and overcome challenges associated with monitoring. This framework can help managers create more successful reintroduction programs that can benefit urban stream restoration.
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溪流大型无脊椎动物的重新引入:恢复城市溪流的警示方法
尽管努力改善栖息地条件,增加物种丰度和多样性,但在物理恢复的城市溪流中,大型无脊椎动物群落往往仍然不活跃。缺乏生物恢复可能是由于附近缺乏天然的殖民者来源,这激发了研究人员和从业者在其他恢复的城市溪流中重新引入大型无脊椎动物,以启动恢复过程。然而,如果没有描述重新引入最佳实践的标准化指南,一些重新引入计划可能会产生额外的问题(例如,疾病传播、基因同质化、种群损失)。为了减少这些风险并限制潜在的资源浪费,有必要采取谨慎的方法。在本文中,我们总结了目前溪流重新引入的知识,并详细介绍了在恢复的城市溪流中重新引入水生大型无脊椎动物的最佳实践。我们提供了管理者可以用来确定重新引入是否合适的标准,并展示了研究人员如何将重新引入作为一种工具来测试有关限制重新殖民化因素的假设。我们为如何设定明确的重新引入目标、选择捐赠地点、确定所需的生物体数量、确定重新引入频率和时间以及克服与监测相关的挑战提供指导。这一框架可以帮助管理者制定更成功的重新引入计划,有利于城市溪流的恢复。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Freshwater Science
Freshwater Science ECOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
4.10
自引率
0.00%
发文量
49
审稿时长
6-12 weeks
期刊介绍: Freshwater Science (FWS) publishes articles that advance understanding and environmental stewardship of all types of inland aquatic ecosystems (lakes, rivers, streams, reservoirs, subterranean, and estuaries) and ecosystems at the interface between aquatic and terrestrial habitats (wetlands, riparian areas, and floodplains). The journal regularly features papers on a wide range of topics, including physical, chemical, and biological properties of lentic and lotic habitats; ecosystem processes; structure and dynamics of populations, communities, and ecosystems; ecology, systematics, and genetics of freshwater organisms, from bacteria to vertebrates; linkages between freshwater and other ecosystems and between freshwater ecology and other aquatic sciences; bioassessment, conservation, and restoration; environmental management; and new or novel methods for basic or applied research.
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