Results 71 to 80 of about 7,486 (244)

The vulnerability of British aquatic insects to climate change

open access: yesKnowledge and Management of Aquatic Ecosystems, 2022
Freshwater ecosystems are particularly at risk from climate change due to the intrinsic link between the physical properties of the water environment and those species that live there. Mayflies, stoneflies and caddisflies are key indicators of the health
Macadam Craig R.   +2 more
doaj   +1 more source

Endemic Flora and Fauna of Arkansas [PDF]

open access: yes, 1982
Arkansas has an amazing diversity of plants and animals contained within its political boundaries. Forty-seven taxa are reported as Arkansas endemics, including seven plants, thirteen crustaceans (two amphipods, three isopods, eight crayfishes), nine ...
Robison, Henry W., Smith, Kenneth L.
core   +2 more sources

Clouds, shadows, or twilight? Mayfly nymphs recognise the difference [PDF]

open access: yes, 2006
1. We examined the relative changes in light intensity that initiate night-time locomotor activity changes in nymphs of the mayfly, Stenonema modestum (Heptageniidae).
Allan J.D.   +29 more
core   +3 more sources

New Species and Old Semaphoronts: Updating Taxonomic Knowledge of Kempnyia Klapálek, 1914 (Plecoptera: Perlidae) with an Integrative Approach

open access: yesDiversity
Kempnyia Klapálek, 1914 (Plecoptera: Perlidae) is the only genus within its family endemic to Brazil, being present in the Atlantic Forest and sections of the Cerrado. Taxonomic knowledge of the genus is incomplete, especially for nymphs.
Lucas Henrique de Almeida   +3 more
doaj   +1 more source

Variation in Zn, C, and N isotope ratios in three stream insects

open access: yesFACETS, 2016
Total Zn concentrations and Zn isotope ratios were measured, using multicollector inductively coupled plasma (ICP)-mass spectrometry (MS), in three species of aquatic insects collected from a stream in Peterborough, Ontario, Canada.
R. Douglas Evans   +3 more
doaj   +1 more source

The Return of \u3ci\u3eHexagenia\u3c/i\u3e (Ephemeroptera: Ephemeridae) to the Lower Fox River, Wisconsin [PDF]

open access: yes, 2017
Burrowing mayflies (Hexagenia bilineata) were collected in 1991 in the vicinity of the DePere dam on the Fox River, Brown County, Wisconsin. Because Hexagenia mayflies are indicators of good water quality, their emergence from the Fox River is evidence ...
Cochran, Phillip A
core   +2 more sources

Fish predation cues induce drifting and emergence in an experimental stream mesocosm system

open access: yesLimnology and Oceanography, Volume 70, Issue S2, Page S364-S376, December 2025.
Abstract Predator–prey interactions are important drivers of adaptation in aquatic communities, shaping the behavior of invertebrates with cascading effects on community dynamics. Behavioral responses, such as moving with the downstream current (drift) or altering the timing of emergence, are strategies that reduce the risk of predator encounters ...
Anna‐Maria Vermiert   +8 more
wiley   +1 more source

Two new species of Sinacroneuria Yang & Yang, 1995 (Plecoptera: Perlidae) from China

open access: yesEuropean Journal of Taxonomy
Two new species of the stonefly genus Sinacroneuria, S. aequalis sp. nov. and S. transversa sp. nov., are described and illustrated from the Fujian and Zhejiang provinces of China. These new taxa are compared with related congeners.
Rui-Jun Liu, Zhi-Shan Cao, Wei-Hai Li
doaj   +1 more source

Plecoptera and Trichoptera species in the Upper Neretva Catchment (Bosnia and Herzegovina) – new data from 2023 supplement the high diversity recorded a year before

open access: yesNatura Sloveniae
The Balkan Peninsula is considered to be a biodiversity hotspot, hosting a particularly high number of endemic species. Despite increased faunistic research in recent decades many areas remain poorly investigated, particularly regarding the aquatic ...
Pia Teufl, Wolfram Graf
doaj   +1 more source

Surface Tension dominates Insect Flight on Fluid Interfaces

open access: yes, 2016
Flight on the two-dimensional air-water interface, with body weight supported by surface tension, is a unique locomotion strategy well adapted for the environmental niche on the surface of water.
Bardon, Thibaut C   +3 more
core   +1 more source

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