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Sychra, Jan; Adámek, Zdeněk

doi:10.4194/trjfas.2010.0201

Cited by 7 publications

(2 citation statements)

References 18 publications

(34 reference statements)

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“…Before plants began to senesce in October, we collected three replicate 0.116-m 2 samples of water hyacinth plants using a modified Gerking box sampler at each water hyacinth mat (Downing & Anderson, 1985;Sychra & Adamek, 2010). To reduce the possibility of altering seed production or presence of water hyacinth mats, a mat was not sampled if a majority portion of the mat would have been removed.…”

Section: Biomass Samplingmentioning

confidence: 99%

Water hyacinth (Eichhornia crassipes) invasion and establishment in a temperate river system

VonBank¹,

Casper

Pendleton

et al. 2018

River Research & Apps

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Water hyacinth (Eichhornia crassipes) is an invasive aquatic macrophyte that is prolific throughout many regions worldwide, but it has recently been detected in several areas of the Midwest United States, outside of its historical range. We assessed the occurrence of water hyacinth in the upper Illinois River to understand the current distribution and potential establishment pathways within a large river system in a temperate climate. We estimated plant biomass and occurrence of seeds in substrate and the water column at locations where water hyacinth occurred and other areas throughout the study area. Biomass of seeds varied temporally and spatially, but no potential water hyacinth seeds germinated during germination trials and germination rates for unscarified water hyacinth seeds from an established population were extremely low. Interestingly, a high abundance and diversity of seeds were detected below water hyacinth mats indicating that water hyacinth root systems may also act as a barrier to hydrochoric seeds in large river systems. Generally, the occurrence of water hyacinth mats and propagules during our study did not pose any apparent issues for commercial navigation due to low overall occurrence and biomass, late occurrence in the growing season, and nongermination of seeds. However, presence of potential water hyacinth in the seed bank and rapid proliferation late in the growing season could pose issues for recreational navigation in low‐flow areas and suggests increased risk if environmental conditions become more suitable for establishment. Occurrence of water hyacinth in the upper Illinois River likely relies on biomass reintroduction annually by humans, and behavioural modification or legal means may be necessary to reduce future occurrences.

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Section: Biomass Samplingmentioning

confidence: 99%

Water hyacinth (Eichhornia crassipes) invasion and establishment in a temperate river system

VonBank¹,

Casper

Pendleton

et al. 2018

River Research & Apps

View full text Add to dashboard Cite

show abstract

“…As macrophytes come in a wide variety of forms, a sweep net is commonly used for sampling within plants as it can be used within all plant types. Methodological studies on macroinvertebrate sampling mainly focus on comparing different sampling methods and their efficiency within macrophytes (Kornijów, 2014;Sychra and Adamek, 2010).…”

Section: Introductionmentioning

confidence: 99%

How invasive macrophytes affect macroinvertebrate assemblages and sampling efficiency: Results from a multinational survey

et al. 2022

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Habitat selection and activities of dabbling ducks during non‐breeding periods

Osborn

Hagy

McClanahan³

et al. 2017

J Wildl Manag

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Western Tennessee is an important region for waterfowl during non‐breeding periods, supporting >40% of the Mississippi Flyway population of American black ducks (Anas rubripes). Understanding habitat selection and activities of waterfowl during the non‐breeding period is important for directed habitat management on national wildlife refuges and in other wetlands important in meeting regional waterfowl conservation objectives. During November–February 2011–2013, we investigated diurnal habitat selection and activities of dabbling ducks (Anatini) among 5 common wetland types relative to emergent cover, water depth, and energetic carrying capacity (i.e., duck energy days [DEDs]) in western Tennessee, USA. We observed waterfowl daily and sampled food resources monthly at Tennessee and Cross Creeks National Wildlife Refuges. Mallard (Anas platyrhynchos), gadwall (A. strepera), northern pintail (A. acuta), and American green‐winged teal (A. carolinensis) selected moist‐soil wetlands over wooded, aquatic bed, and open water wetland types. Gadwall also selected deeper wetlands containing submersed aquatic vegetation. Foraging was the dominant activity of all dabbling ducks in mudflats and moist‐soil wetlands, and it was also dominant in wooded wetlands for green‐winged teal and gadwall. Deep, open water was avoided by dabbling ducks. Selection of wetland types was negatively correlated with increasing water depth and positively correlated with increasing emergent cover and DEDs. Shallowly flooded moist‐soil and wooded wetlands provide high‐energy foods and dense emergent cover, and are important to a diversity of dabbling ducks during winter. © 2017 The Wildlife Society.

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Untitled

Cited by 7 publications

References 18 publications

Water hyacinth (Eichhornia crassipes) invasion and establishment in a temperate river system

Water hyacinth (Eichhornia crassipes) invasion and establishment in a temperate river system

How invasive macrophytes affect macroinvertebrate assemblages and sampling efficiency: Results from a multinational survey

Habitat selection and activities of dabbling ducks during non‐breeding periods

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