Results 81 to 90 of about 2,969 (239)
Networks in Aquatic Communities Collapse Upon Neonicotinoid‐Induced Stress
Ecology Letters, Volume 28, Issue 4, April 2025.We employed an experimental approach with 36 naturally established freshwater ecosystems exposed to increasing field realistic concentrations of the neonicotinoid thiacloprid. Upon exposure, we found severe degradation of species co‐occurrence networks and coincident ecosystem functioning.
S. Henrik Barmentlo +6 more
wiley +1 more source
European Journal of Taxonomy, 2017 Two formerly monotypic lumbriculid genera, Guestphalinus Michaelsen, 1933 and Kincaidiana Altman, 1936, are reviewed using morphological and molecular data, following the discovery of new northwestern, Nearctic species. Several populations of Kincaidiana
Steven V. Fend +3 more
doaj +1 more source
Earthworms (Clitellata, Acanthodrilidae) of the mountains of Eastern Jamaica
Organisms Diversity & Evolution, 2004 AbstractFourteen species new to science are described from material collected at several sites in the Blue Mountains and the John Crow Mountains of eastern Jamaica, doubling the known endemic Jamaican earthworm fauna. New data on Dichogaster montecyanensis (Sims) are provided.
openaire +2 more sources
Fauna Norvegica, 1994 The earthworm species Octolasion cyaneum and Aporrectodea rosea were observed in northern Norway for the first time in 1989 and 1992 respectively. The observations were made at Tromsø, on the southern part of the island Tromsøya (69°39'N, 18° 55'E).
Trond Knapp Haraldsen, Freddy Engelstad
doaj +1 more source
On a collection of enchytraeids (Oligochaeta) from first order streams in São Paulo State, Brazil [PDF]
Opuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis, 2017 A collection of 21 ethanol-preserved specimens of enchytraeids collected in first order streams in São Paulo State, Brazil, was whole-mounted on slides and investigated under light microscope.
Schmelz, R. M., Alves, R. G.
doaj
Fauna Norvegica, 1995 The first record of Potamothrix bedoti (Piguet, 1913) in Norway is from the eutrophic lake Årungen 34 m a.s.l. (59°45'N, 10°41'E) in the county of Akershus, where 31 mature specimens were collected in the littoral zone from 1.0 to 3.0 m depth in silt ...
Svein-Erik Sloreid
doaj +1 more source
New acanthodrilid species from Madagascar (Clitellata, Acanthodrilidae)
Acta Zoologica Academiae Scientiarum Hungaricae, 2019 During collecting trips to Madagascar in the last decade several Acanthodrilidae sensu lato species were collected. The newly acquired material expresses high variability of the excretory system containing meroic, holoic vesiculate and holoic avesiculate species.
Hong, Yong +4 more
openaire +5 more sources
Phylogeny of Annelida (Lophotrochozoa): total-evidence analysis of morphology and six genes
BMC Evolutionary Biology, 2009 Background Annelida is one of the major protostome phyla, whose deep phylogeny is very poorly understood. Recent molecular phylogenies show that Annelida may include groups once considered separate phyla (Pogonophora, Echiurida, and Sipunculida) and that
Piálek Lubomír +3 more
doaj +1 more source
Revista Mexicana de Biodiversidad, 2015 En contraste con los enormes esfuerzos realizados por caracterizar la fauna y flora de Costa Rica, con excepción de algunos registros aislados, muy poco se sabe sobre las sanguijuelas (Annelida: Clitellata) en este país.
Alejandro Francisco Oceguera-Figueroa
doaj +1 more source
Journal of Zoological Systematics and Evolutionary Research, 2003 Many species of Naididae possess a pair of pigmented eyes. Within Clitellata, eyes are generally present in Hirudinea, whereas Naididae are the only oligochaete taxon having these sense organs. The eyes of Naididae are epidermal structures and consist of a multicellular pigment cup in which a single row of five to six photoreceptor cells is embedded ...
openaire +2 more sources