Results 31 to 40 of about 157 (117)
Stream Invertebrate Responses to Fine Sediment Depend on the Organic and Inorganic Components
Freshwater Biology, Volume 70, Issue 3, March 2025.ABSTRACT Excess fine sediment ( < 2 mm) is a pervasive stressor of aquatic systems at a global scale. To date, most research quantifying ecological response to deposited fine sediment has been conducted without distinguishing between the organic and inorganic components of fine sediment, leaving mechanistic understanding of how fine sediment affects ...
Morwenna McKenzie +8 more
wiley +1 more source
River Research and Applications, Volume 40, Issue 10, Page 2022-2034, December 2024.Abstract The presence of sediment‐burrowing clubtail dragonflies (Gomphidae) may be directly related to riverine geomorphic properties. Their synchronous emergence behavior, marked by persistent exuviae, allows for the examination of emerging adult‐stage habitats.
Jessica M. Orlofske +4 more
wiley +1 more source
Ecology of Freshwater Fish, Volume 33, Issue 2, April 2024.Abstract Ecosystem engineers facilitate beneficiary species by ameliorating physical habitat. The stress‐gradient hypothesis (SGH) predicts the importance of facilitation in communities should increase with physical stress but has rarely been tested in freshwater.
Isabel G. Evelyn +2 more
wiley +1 more source
, 2019 Live adult male specimens of C. brevistigma and W. atkinsoni have been collected from Shimla, Himachal Pradesh (India). Male germ cell chromosomes of the species are described on the basis of conventional staining, C-banding, silver nitrate staining and sequence specific staining. Both the species possesses 2n = 25m, as a diploid chromosome number and (
Kaur Walia, Gurinder +1 more
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Morphological variability of Cordulegaster trinacriae in Italy (Odonata: Cordulegastridae)
, 2019 This paper describes the most helpful features for field identification of C. trinacriae and the relevant morphological variability encountered. In C. trinacriae the yellow frons was without a dark horizontal marking in about 70 % of the sample or showed a barely patterned frons, while the remaining 30 % showed a more or less defined dark smudge ...
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The complete mitochondrial genome of Chlorogomphus shanicus Wilson, 2002 (Anisoptera: Chlorogomphidae), an endemic species in South China. [PDF]
Mitochondrial DNA B Resour, 2023 Wang H, Wang L, Liao J, Han BP.
europepmc +1 more source
International Journal of Odonatology, 2022 The larva of Cordulegaster vanbrinkae Lohmann, 1993 is described and illustrated based on fourteen final instar larvae and 49 exuviae that were collected in Gīlān, Māzandarān and Golestān provinces, in northern Iran in July 2014, July 2017 and August 2018.
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Journal of Insect BiodiversityCordulegastridae Tillyard, 1917 is an enigmatic Odonata family with mainly Holarctic distribution. One of its five genera is Thecagaster Selys, 1854, a genus restricted to smaller brooks, trickles, or seepages in the spring or near the spring regions in moderated high mountain areas of the Palaearctic Region.
THOMAS SCHNEIDER +3 more
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Comprehensive comparative morphology and developmental staging of final instar larvae toward metamorphosis in the insect order Odonata. [PDF]
Sci Rep, 2021 Okude G, Fukatsu T, Futahashi R.
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, 2023 Paper presents the first record in the Stołowe Mountains of a rare, protected by law Golden-ringed Dragonfly Cordulegaster boltonii. One specimen was hunted by a domestic cat in 2022 in Łężyce village. The presented locality (c. 600m a.s.l.) is one of the most elevated localities of this species in Poland.
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