Results 51 to 60 of about 1,997 (179)

RIVPACS database documentation. Final report [PDF]

open access: yes, 2007
With the advent of the EU Water Framework Directive the concept of the 'reference condition' has become explicit within the legislative framework of the European Union.
Clarke, Ralph   +6 more
core  

МОРФОЛОГІЧНІ ОСОБЛИВОСТІ ТА ПОШИРЕННЯ КЛІЩІВ РОДУ UNIONICOLA (ACARI: HYDRACARINA: UNIONICOLIDAE) – ПАРАЗИТІВ ПЕРЛІВНИЦЕВИХ (MOLLUSCA: BIVALVIA: UNIONIDAE) У РІЧКОВИХ БАСЕЙНАХ УКРАЇНИ [PDF]

open access: yes, 2012
У цій статті розглядається встановлення видового складу водяних кліщів роду Unionicola – паразитів перлівницевих з водойм і водотоків України.
Пампура, М. М.   +2 more
core  

A Short History of the Brown-Tail Moth (1782). William Curtis. London: The Curwen Press, 1969. [v], 18, [ii], 13 pp. $9.30. Entomological Reprint Specialists, Los Angeles, California. [PDF]

open access: yes, 2017
Excerpt: This slim volume is easily one of the most attractive entomological reprints that has appeared to date. Most American entomologists are familiar with the story of the brown-tail moth, Nygmia phaeorrhoea Donovan, the European species which was ...
Wilkinson, Ronald S
core   +2 more sources

Hydracarina from Glacier National Park

open access: yesTransactions of the American Microscopical Society, 1930
Material for this study consisted of collections of water mites made by Dr. R. M. Muttkowski in Lake McDonald, Glacier National Park, Montana, during the months of July and August, 1925. The author wishes here to express her thanks to Dr. Muttkowski for the opportunity to examine this material and thus to add a little to our scanty knowledge of the ...
openaire   +2 more sources

A bibliography of works for the identification of freshwater invertebrates in the British Isles [PDF]

open access: yes, 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  

АНАЛИЗ РЕЗУЛЬТАТОВ СБОРА НА СВЕТ ПРЕСНОВОДНЫХ БЕСПОЗВОНОЧНЫХ С ПОМОЩЬЮ ПОДВОДНОЙ СВЕТОЛОВУШКИ [PDF]

open access: yes, 2008
Анализируются результаты сборов на свет пресноводных беспозвоночных, проведенных в 2004–2005 гг. с помощью подводной светоловушки. В качестве источника света в ловушке были использованы светодиоды белого света.
Николаева, Н.Е.
core  

Guide to the freshwater fauna of Ceylon (Sri Lanka). Supplement 4 [PDF]

open access: yes, 1974
In the present supplement, where records in the past have been few in a group, new records are given of localities both as regards species previously recorded from Sri Lanka and especially for new records. This gives the new records more standing and may
Fernando, C.H.
core  

Some data on the predacious behaviour of tendipidae larvae [Translation from: C. R. Acad. Sci. U.R.S.S. 111, 466-4, 1956] [PDF]

open access: yes, 1956
A study has been made primarily of the food of the chironomid Procladius nigriventris: this includes Alona affinis, Bosmina coregoni, Camptocercus, Eucyclops serrulatus, Paracyclops fimbriatus, Acanthocyclops viridis, Harpacticoida, Diaptomus graciloides,
Luferov, V.P.
core  

Зараженість перлівницевих (mollusca, bivalvia, unionidae) Тетерівського водосховища водяними кліщами (acari, hydracarina, unionicola) [PDF]

open access: yes, 2011
Метою нашої роботи було встановити видовий склад перлівницевих Тетерівського водосховища (м. Житомир), а також їх паразитів – водяних кліщів роду Unionicola.
Пампура, М. М.   +1 more
core  

Combined stable isotope and gut contents analysis of food webs in plant-dominated, shallow lakes [PDF]

open access: yes, 2003
1. To determine feeding links between primary producers, invertebrates and fish, stable isotope analyses and gut content analyses of fish were conducted on the components of four shallow, eutrophic to hypertrophic, plant-dominated lakes. 2.
Adams   +45 more
core   +1 more source

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