Results 61 to 70 of about 3,393 (189)
A review of the species of Rhynchopsilopa Hendel from China (Diptera, Ephydridae)
ZooKeys, 2012 Species of the shore-fly genus Rhynchopsilopa Hendel from China are reviewed. Four new species (Rhynchopsilopa guangdongensis sp. n., R. huangkengensis sp. n., R. jinxiuensis sp. n., R. shixingensis sp.
Zhang Junhua, Ding Yang, Wayne Mathis
doaj +1 more source
A bibliography of works for the identification of freshwater invertebrates in the British Isles [PDF]
, 1979 This bibliography covers the literature up to the end of 1978. The criteria used in the selection of references were that they should aid identification of invertebrates directly; thus, works solely concerned with the taxonomy of a particular group are ...
Armitage, P.D. +2 more
core
A second European Axysta species (Diptera: Ephydridae)
Acta Zoologica Academiae Scientiarum Hungaricae, 2022 Axysta clausseni spec. nov. is described from Finland and Germany. All available names of European Axysta are discussed and Hydrina viridula Robineau-Desvoidy, 1830 is placed as nomen dubium in the genus Hyadina (status rev.).
openaire +2 more sources
An Improved Biotic Index of Organic Stream Pollution [PDF]
, 2017 Major improvements were made in using a biotic index of the arthropod fauna to evaluate organic stream pollution. All tolerance values were reevaluated, many were changed, and the scale for tolerance values was expanded to 0-10 to provide greater ...
Hilsenhoff, William L
core +3 more sources
Ecohydrology, Volume 17, Issue 8, December 2024.Abstract Environmental flows (e‐flows) assessments are a powerful mechanism for enhancing and conserving the ecosystem goods and services rivers provide while allocating water to essential human use. There is a paucity of e‐flows assessments and implementation in water scarce regions such as the Middle East, where limited freshwater resources are under
P. Mark Graham +4 more
wiley +1 more source
Evaluación de la calidad del agua mediante un enfoque múltiple en arroyos de la llanura templada (Argentina, América del Sur) [PDF]
, 2012 We assessed the water quality in two pampean lotic systems (Argentina), the Juan Blanco and Buñirigo streams, subjected to different land uses (i. e., the UNESCO Biosphere Nature Reserve versus industry and agriculture, respectively) through measurements
Ocon, Carolina Silvia +1 more
core +1 more source
Optimizing eDNA Replication for Standardized Application in Lotic Systems in Aotearoa, New Zealand
Environmental DNA, Volume 6, Issue 5, September–October 2024.The objective of this study was to optimize eDNA sample replication for the consistent characterization of freshwater fish and aquatic macroinvertebrate communities in flowing New Zealand waters, and ultimately, to inform the development of robust national monitoring standards. Results indicated that six replicates were needed to consistently detect 89.
Josh Smith +7 more
wiley +1 more source
Insect Conservation and Diversity, Volume 17, Issue 5, Page 758-787, September 2024.Monitoring invertebrates in cereal fields in southern England over 50 years (1970–2019) showed an overall decline in abundance. For taxa at the order/family level, 47% declined in abundance, 16% increased and 37% showed no change. Most functional groups declined, expect for pollinators—whose abundance did not change overall.
J. A. Ewald +5 more
wiley +1 more source
Biología Acuática, 2020 En este estudio se caracteriza el ensamble de macroinvertebrados en bañados de desborde fluvial de cuatro arroyos pampeanos bonaerenses con diferentes actividades en el uso del suelo (intensa horticultura y ganadería extensiva) desde un punto de vista ...
Alberto Rodrigues Capítulo +9 more
doaj +1 more source
Kétszárnyúak (Diptera) minőségi és mennyiségi előfordulási viszonyai egy alföldi mocsárban | Qualitative and quantitative characteristics of the distribution of Diptera in a lowland marsh [PDF]
, 2005 A vízi és a vizes élőhelyek Diptera-együtteseiről viszonylag kevés ismerettel rendelkezünk. Ez elsősorban az azonosítási problémákra vezethető vissza, mivel a legtöbb kétszárnyúcsalád lárváit nem ismerjük kielégítően, vagy pedig a lárvák morfológiai ...
Csabai, Zoltán +3 more
core