Results 51 to 60 of about 452 (174)

Biological Monitoring Using Macroinvertebrates as Bioindicators of Water Quality of Maroaga Stream in the Maroaga Cave System, Presidente Figueiredo, Amazon, Brazil

International Journal of Ecology, Volume 2014, Issue 1, 2014., 2014
Aquatic environments are being modified by anthropogenic activities regarding their biological, physical, and chemical conditions; even pristine aquatic ecosystems can be threatened. This study focused on the biological monitoring of Maroaga Stream—a first order stream located in an Environmental Protection Area in the Amazon using the Biological ...
Christiane Brito Uherek, Fernando Bernardo Pinto Gouveia, L. M. Chu   +2 more
wiley   +1 more source

An annotated checklist of the aquatic Polyphaga (Coleoptera) of Egypt III. Families: Helophoridae, Georissidae, Hydrochidae, Spercheidae, Scirtidae, Elmidae, Dryopidae, Limnichidae and Heteroceridae [PDF]

, 2017
An annotated list of the aquatic Polyphaga (Coleoptera: Helophoridae, Georissidae, Hydrochidae, Spercheidae, Scirtidae, Elmidae, Dryopidae, Limnichidae and Heteroceridae) recorded from Egypt is presented, based on data gathered from earlier literature ...
Mohamed Salah
core   +1 more source

Study on Freshwater Macroinvertebrates of Some Tanzanian Rivers as a Basis for Developing Biomonitoring Index for Assessing Pollution in Tropical African Regions

Journal of Ecosystems, Volume 2014, Issue 1, 2014., 2014
Macroinvertebrates and physicochemical parameters were assessed at 15 sites along five rivers in Kilimanjaro region, Tanzania, with the aim of understanding their ecological status and setting a base to the development of a biological index for tropical regions.
Julius D. Elias, Jasper N. Ijumba, Yunus D. Mgaya, Florence A. Mamboya, Rui Cortes   +4 more
wiley   +1 more source

Fig. 7. A–D. Elmomorphus brevicornis Sharp, 1888 in Taxonomic revision of the genus Elmomorphus Sharp, 1888 I. Japanese and Korean species (Coleoptera: Dryopidae) [PDF]

, 2021
Fig. 7. A–D. Elmomorphus brevicornis Sharp, 1888, ♂ (JKCB). A. Foreclaws. B. Dorsal plastron scales. C. Ventral plastron scales. D. Detail on ventrite 5. E. Elmomorphus amamiensis Nomura, 1959, detail on male ventrite 5 (JKCB).Published as part of Kodada,
Jäch, Manfred A., Kodada, Ján, Selnekovič, Dávid, Goffová, Katarína, Vďačný, Peter   +4 more
core   +1 more source

Aquatic Coleoptera assemblages in protected wetlands of North-western Spain

Journal of Limnology, 2014
Wetlands are diverse and productive ecosystems endangered by human pressure, which degradation implies a biodiversity loss worldwide. Among the biological assemblages of these habitats, aquatic Coleoptera is one of the most diverse and useful groups when
Amaia Pérez-Bilbao, Cesar João Benetti, Josefina Garrido   +2 more
doaj   +1 more source

Floodplain Restoration and Its Effects on Summer Water Temperature and Macroinvertebrates in Whychus Creek, Oregon (USA)

River Research and Applications, Volume 41, Issue 1, Page 37-55, January 2025.
ABSTRACT Stream restoration is a proposed climate adaptation tool; however, outcomes of floodplain restoration on stream temperature have been debated. Despite a growing number of studies that investigated water temperature in restored streams, few have quantified temperature variations in new habitat types created by restored hydrogeomorphic processes
Wesley N. Noone, Patrick M. Edwards, Yangdong Pan, Colin Thorne   +3 more
wiley   +1 more source

FIGURES 1–3 in Dryops renateae Greń & Przewoźny sp. n. from Tajikistan (Coleoptera: Dryopidae) [PDF]

, 2016
FIGURES 1–3. Dryops renateae sp. n., 1) habitus of paratype male; 2a) aedeagus in ventral view; 2b) aedeagus in lateral view; 3) last female sternite. Photo: Marek Przewoźny, drawings by Czesław Greń.Published as part of Greń, Czesław, Przewoźny, Marek ...
Greń, Czesław, Szczepański, Wojciech T., Przewoźny, Marek, Karpiński, Lech   +3 more
core   +1 more source

FIG. 2 in Rhithrops capensis gen. et sp. nov., a new aquatic dryopid beetle from the Western Cape of South Africa (Coleoptera: Dryopoidea: Dryopidae) [PDF]

, 2022
FIG. 2. South African endemic dryopid genera, dorsolateral view of pronotal margins. A) Rhithrops capensis gen. et sp. nov., holotype male; B) Rhithrops capensis gen. et sp. nov., paratype female; C) Rapnus sp., female; D) Strina sp., female.
Shepard, William D., Bilton, David T.
core   +1 more source

The spatial extent and the dispersal strategy of species shape the occupancy frequency distribution of stream insect assemblages

Ecology and Evolution, Volume 14, Issue 7, July 2024.
We examined the role of spatial extent of sampling and dispersal strategies of stream insect species in shaping occupancy frequency distribution (OFD) in near‐natural streams in the Pannon Ecoregion. With increasing spatial extent, the OFD pattern changed from bimodal to unimodal for active dispersers.
I. Szivák, Z. Csabai, D. Schmera, A. Móra   +3 more
wiley   +1 more source

Coleópteros acuáticos de lagunas situadas en el noroeste de la provincia de Corrientes, Argentina Aquatic Coleoptera from ponds in the northwest of Corrientes Province, Argentina

Revista de la Sociedad Entomológica Argentina, 2012
El objetivo de este estudio es contribuir al conocimiento de la biodiversidad de coleópteros acuáticos del NE argentino. Los sitios de muestreo corresponden a dos lagunas permanentes ubicadas en el departamento Capital de la provincia de Corrientes ...
María C. Gomez Lutz, Liliana A. Fernández, Arturo I. Kehr   +2 more
doaj