Results 21 to 30 of about 120,642 (345)

Aquatic insects as bio-indicators of water quality – a study on Sungai Kawal, Johor National Park of Endau-Rompin, Peninsular Malaysia [PDF]

open access: yes, 2020
Biological indicator species or bio-indicators are sensitive to specific environmental factors so that changes in their environment will be reflected by their incidence or abundance.
Blakely   +13 more
core   +1 more source

An Emergence Trap for Aquatic Insects [PDF]

open access: yes, 2017
Excerpt: The identification of organisms is a prerequisite to developing water quality criteria for aquatic life. Identification is necessary because differences in water quality requirements are specific and may be different for closely allied species ...
Lemke, Armond E., Mattson, Vincent R.
core   +2 more sources

New Techniques for Associating the Stages of Aquatic Insects [PDF]

open access: yes, 2017
(excerpt) The immature forms of many benthic insect species are presently either undescribed or unidentifiable. The result is that associations with corresponding adult forms are often necessary in order to confirm specific and sometimes generic ...
McCafferty, W P, Provonsha, A. V.
core   +3 more sources

Curculionidae and Chrysomelidae Found in Aquatic Habitats in Wisconsin [PDF]

open access: yes, 2017
(excerpt) We became interested in aquatic weevils (Curculionidae) and leaf beetles (Chryso- melidae) during the Aquatic Entomology Course at the University of Wisconsin, in the spring of 1971. Many collections, taken from a variety of aquatic habitats in
Bayer, Lutz J, Brockmann, H. Jane
core   +3 more sources

Closely Related Tree Species Differentially Influence the Transfer of Carbon and Nitrogen from Leaf Litter Up the Aquatic Food Web [PDF]

open access: yes, 2014
Decomposing leaf litter in streams provides habitat and nutrition for aquatic insects. Despite large differences in the nutritional qualities of litter among different plant species, their effects on aquatic insects are often difficult to detect.
Adams, KJ   +7 more
core   +1 more source

\u3ci\u3eAnaphes\u3c/i\u3e (Hymenoptera: Mymaridae) Reared from the Eggs of a Shore Fly (Diptera: Ephydridae) [PDF]

open access: yes, 2017
Members of the family Mymaridae are obligate parasitoids of insect eggs, and some species attack the eggs of aquatic insects. Only one account of egg parasitism by the mymarid genus Anaphes on Diptera has been disclosed in the literature.
Foote, B. A   +2 more
core   +2 more sources

Radiocesium-bearing microparticles cause a large variation in 137Cs activity concentration in the aquatic insect Stenopsyche marmorata (Tricoptera: Stenopsychidae) in the Ota River, Fukushima, Japan.

open access: yesPLoS ONE, 2022
After the Tokyo Electric Power Company Fukushima Daiichi Nuclear Power Plant accident in Japan, freshwater ecosystems near the site remained contaminated by radiocesium (RCs).
Yumiko Ishii   +11 more
doaj   +1 more source

Aquatic insect community structure revealed by eDNA metabarcoding derives indices for environmental assessment [PDF]

open access: yesPeerJ, 2020
Environmental DNA (eDNA) analysis provides an efficient and objective approach for monitoring and assessing ecological status; however, studies on the eDNA of aquatic insects, such as Ephemeroptera, Plecoptera, and Trichoptera (EPT), are limited despite ...
Noriko Uchida   +3 more
doaj   +2 more sources

Species and life stages of Odonata nymphs sampled with large drift nets in two Wisconsin rivers [PDF]

open access: yes, 2017
Because relatively few nymphs of Odonata are caught in most drift studies, they have been inconsistently reported and little is known about the species and life stages that are predisposed to drift.
DuBois, Bob, Pratt, Dennis
core   +2 more sources

An Overview of the Heteroptera of Illinois [PDF]

open access: yes, 2017
A key to adults of all heteropteran families known to occur in Illinois is presented together with general information on the biologies of these families.
McPherson, J. E
core   +3 more sources

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