Results 111 to 120 of about 9,121 (274)

Responses of Chironomidae (Diptera; Insecta) to the exclusion of shrimps and Ephemeroptera in a coastal forest stream, Rio de Janeiro, Brazil

open access: yesBrazilian Journal of Biology
In a benthic community on a continuous flat granite substrate in a third-order coastal forest stream, the dominant chironomid (Cricotopus) increased in number when shrimps (Macrobrachium olfersi and Potimirim glabra) and baetid ephemeropterans were ...
ML. Souza   +4 more
doaj   +1 more source

Ecological study of the River Lambourn. Report for the period October 1970 to September 1973 [PDF]

open access: yes, 1973
Few detailed studies have been made on the ecology of the chalk streams. A complex community of plants and animals is present and much more information is required to achieve an understanding of the requirements and interactions of all the species. It is

core  

Reports of Baetidae (Ephemeroptera) species from Tafna Basin, Algeria and biogeographic affinities revealed by DNA barcoding

open access: yesBiodiversity Data Journal, 2020
Background The Mediterranean basin is known to be the cradle of many endemic species. Within mayflies (Insecta, Ephemeroptera), North African species belonging to the family Baetidae remain poorly known and, traditionally, affinities to European fauna ...
Nadhira Benhadji   +3 more
semanticscholar   +1 more source

First records of four species of the genus Americabaetis (Ephemeroptera: Baetidae) for Argentina Primer registro de cuatro especies del género Americabaetis (Ephemeroptera: Baetidae) para Argentina

open access: yesRevista de la Sociedad Entomológica Argentina, 2012
The family Baetidae is the most diverse family into the Order Ephemeroptera and it has an almost cosmopolitan distribution. The genus Americabaetis Kluge was described in 1992 and actually it has 19 known species with a clearly Neotropical distribution ...
Sofía Bardavid, Carolina Nieto
doaj  

Zoocoenological state of microhabitats and its seasonal dynamics in an aquatic macroinvertebrate assembly (Hydrobiological case studies on lake Balaton, No. 1.) [PDF]

open access: yes, 2005
In the years 2002, 2003 and 2004 we collected samples of macroinvertebrates on a total of 36 occasions in Badacsony bay, in areas of open water (in the years 2003 and 2004 reed-grassy) as well as populated by reed (Phragmites australis) and cattail ...
Gaál, Márta   +2 more
core  

A new species of Parakari (Ephemeroptera: Baetidae) from Guiana Highlands

open access: yesZootaxa, 2015
The genus Parakari was described from Guiana Highlands in southeastern Venezuela by Nieto & Derka in 2011 for two species inhabiting streams draining isolated, flat-topped table mountains called tepuis. A description of a third representative, Parakari roraimensis sp.
Derka, Tomás   +2 more
openaire   +5 more sources

L'Alimentation des jeunes Saumons (Salmo salar L.) dans une rivière du Pays-Basque, la Nivelle. [PDF]

open access: yesMunibe Ciencias Naturales, 1995
El estudio conlleva el análisis estomacal de 136 juveniles de   salmón atlántico (Salmo Salar L.), de tallas que varían entre 70   y 141 mm. Los peces han sido capturados a comienzos de otoño, en   dos tramos someros del río Nivelle (País Vasco).
VIGNES, J.C.
doaj  

TROPHIC AND REPRODUCTIVE ECOLOGY OF A NEOTROPICAL CHARACID FISH HEMIBRYCON BREVISPINI (TELEOSTEI: CHARACIFORMES)

open access: yesCaldasia, 2014
Hemibrycon brevispini is a Neotropical characid fish endemic in La Venada Creek, a headwater tributary of the Quindío River of Colombia ( Cauca River drainage).
CRISTIAN ROMÁN-P.   +2 more
doaj   +1 more source

The mitochondrial genome of Caenis sp. (Ephemeroptera: Caenidae) from Fujian and the phylogeny of Caenidae within Ephemeroptera

open access: yesMitochondrial DNA. Part B. Resources, 2020
The phylogenetic relationship of Caenidae remains hotly debated within the Ephemeroptera. We sequenced the complete mitochondrial genome of Caenis sp. (Ephemeroptera: Caenidae) to discuss the phylogenetic relationships among the Caenidae.
Xiao-Dong Xu   +6 more
doaj   +1 more source

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