Further insights into the responses of macroinvertebrate species to burial by sediment

Conroy, Emer; Turner, Jonathan; Rymszewicz, A.; Bruen, Michael; O’Sullivan, John; Lawler, Damian; Stafford, S.; Kelly‐Quinn, Mary

doi:10.1007/s10750-017-3328-7

Cited by 22 publications

(17 citation statements)

References 70 publications

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“…For example, mobile sediments can damage sensitive structures such as the external gills of many families of Ephemeroptera, or inhibit proper function of these organs through clogging, whereas sediment deposition can cause burial of sedentary invertebrates (e.g., Trichoptera, mollusks) or vulnerable life stages (e.g., pupa) (see review in Jones et al 2012). Conroy et al (2018) showed that many invertebrates experience more difficulty escaping finer sediment fractions than coarser ones, and that even mobile invertebrates (e.g., Ephemeroptera) can become entrapped in fine sediments when burial depth reaches 10 mm. There may also be indirect impacts of sedimentation through a reduction in habitat quality due to changes in substrate composition (Lenat et al 1981; Suren and Jowett 2001) or changes to food availability (Hildebrand 1974; Suren and Jowett 2001), particularly through scouring or burial of biofilm (Levenstein et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams

Levenstein

Lento

Culp

2020

Limnology & Oceanography

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Retrogressive thaw slumps are areas of unstable degraded permafrost that often drain into nearby watersheds, leading to increased sediment loads and changes in water quality. Thaw slumps are prevalent across the Arctic, including western Canada, Alaska, and Russia, and high‐altitude areas of western China. Over the past several decades, increased temperatures and precipitation in the Arctic have led to increases in the size and frequency of thaw slumps. Our study explored the effects of prolonged sedimentation from thaw slumps in the Peel Plateau, NWT, Canada on benthic macroinvertebrate drift, an important biological function of stream ecosystems. Though sedimentation is known to initiate a catastrophic drift response, studies have generally not considered the drift response to ongoing, long‐term perturbation. Drift densities and sediment loads were measured using drift nets and sediment traps at paired sites upstream and downstream of thaw slumps. We compared drift densities and sediment loads between sites and examined how drift differed over a fine‐sediment gradient. The amount of suspended and settling fine sediments increased significantly at downstream sites. Drift densities decreased at downstream sites; however, when drift was corrected for benthic abundance at each site, there was an increase in proportional drift density associated with increased fine sediments. These results indicate that prolonged impacts from thaw slumps result in lower macroinvertebrate abundance and higher proportional drift relative to undisturbed sites. Ultimately, increased sediment loads from thaw slumps represent a chronic stressor that will continue to prevent recovery of macroinvertebrate communities at impacted sites until these features stabilize.

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Section: Discussionmentioning

confidence: 99%

Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams

Levenstein

Lento

Culp

2020

Limnology & Oceanography

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“…Excessive sediment also affects invertebrates (Bond & Downes, ; Conroy et al. , ; Yeakley et al., ).…”

Section: The Value Of Observational Evidence In Mapping Connectivitymentioning

confidence: 99%

Off‐site impacts of soil erosion and runoff: Why connectivity is more important than erosion rates

Boardman

Vandaele

Evans

et al. 2019

Soil Use and Management

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Off-site impacts of soil erosion are of greater social and economic concern in Western Europe than on-site impacts. They fall into two related categories: muddy flooding of properties and ecological impacts on watercourses because of excessive sedimentation and associated pollutants. Critical to these impacts is the connectedness of the runoff and sediment system between agricultural fields and the river system. We argue that well-connected systems causing off-site damage are not necessarily related to areas of high erosion rates; emphasis should therefore be on the way in which connections occur. In temperate, arable systems, important elements of connectivity are anthropogenic in origin: roads, tracks, sunken lanes, field drains, ditches, culverts and permeable field boundaries. Mapping these features allows us to understand how they affect runoff and modify its impacts, to design appropriate mitigation measures and to better validate model predictions. Published maps (digital and paper) do not, by themselves, give sufficient information. Field mapping and observation, aided by remote sensing, are also necessary. K E Y W O R D Sconnectivity, field mapping, off-site impacts, runoff and sediment flux, soil erosion

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“…by sheep treatment or industrial chemicals) 3,7 , siltation (e.g. arising from cattle access over-grazing, drainage, quarrying or stone-cutting operations) 3,8,9 and acidification in sensitive afforested areas 10 . Similarly, hydromorphological alteration to river channels can have influential and adverse effects on aquatic organisms 3 .…”

Section: Background and Summarymentioning

confidence: 99%

A national macroinvertebrate dataset collected for the biomonitoring of Ireland’s river network, 2007–2018

et al. 2020

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the Environmental Protection agency (EPa) in Ireland is responsible for the ecological monitoring and assessment of 37 hydrometric areas covering 46 river catchments and over 13,000 km of river channel nationwide. The national river monitoring program commenced in 1971 and has developed further since 2007 into the National Rivers Water Framework Directive (WFD) Monitoring Program following the implementation of the WFD across the European Union. the monitoring program is designed to obtain sufficiently representative information to assess ecological quality for each water body assessed. Consequently, macroinvertebrate data have been collected at over 2,900 river survey stations on a minimum 3-year cycle to fulfil these requirements. While the EPA has collected these data for water quality assessments we recognize that the data have value beyond this one purpose. We provide a summary of how these 10,987 data records, covering the years 2007 to 2018, have been collected and used to deepen understanding of water quality, biodiversity and general ecological health of Ireland's river network.

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Further insights into the responses of macroinvertebrate species to burial by sediment

Cited by 22 publications

References 70 publications

Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams

Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams

Off‐site impacts of soil erosion and runoff: Why connectivity is more important than erosion rates

A national macroinvertebrate dataset collected for the biomonitoring of Ireland’s river network, 2007–2018

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