Results 41 to 50 of about 815 (183)

The first freshwater molluscs from Wrangel Island, Arctic Russia [PDF]

open access: yesPolar Research, 2015
The first finding of a freshwater snail, Sibirenauta sibiricus (Westerlund, 1877), in one of the lakes on Wrangel Island (north-eastern Russia) is reported. No freshwater mollusc species have hitherto been known from this island.
Maxim V. Vinarski   +2 more
doaj   +1 more source

Physidae

open access: yes, 2022
Identification of Physidae 1) Right- handed shells of various shapes: ovate, ovate-conical, spherical or quasi-spherical, outline elongate, asymmetrical, apex pointed................................................................................ – (Lymnaeidae). - Left-handed shells, spindle-shaped or ovoid-shaped, smooth and thin, pointed spire, small
Cieplok, Anna   +4 more
openaire   +2 more sources

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]

open access: yesEcol Evol
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S   +7 more
europepmc   +2 more sources

Diet composition and prey selection of Telmatobius macrostomus, the JunÌn giant frog

open access: yesEndangered Species Research, 2017
This study describes the diet composition and prey selection of the Endangered JunÌn giant frog Telmatobius macrostomus, endemic to the central Andes of Peru.
Watson, AS   +2 more
doaj   +1 more source

Moluscos aquáticos do Estado de Rondônia (Brasil), com especial referência ao gênero Biomphalaria Preston, 1910 (Pulmonata, Planorbidae) Freshwater mollusks from the State of Rondônia (Brazil), with special reference to the genera Biomphalaria Preston, 1910 (Pulmonata, Planorbidae)

open access: yesRevista de Saúde Pública, 1986
Foi realizado no Estado de Rondônia, Brasil, levantamento malacológico com o objetivo de estabelecer a distribuição geográfica dos moluscos aquáticos, com ênfase especial no gênero Biomphalaria. Foram pesquisados 11 municípios ao longo da rodovia BR-364,
Carlos E.A. Coimbra Júnior   +1 more
doaj   +1 more source

Aspectos epidemiológicos da esquistossomose mansônica na região da Represa de Americana, estado de São Paulo, Brasil Epidemiological aspects of schistosomiasis mansoni in the Americana reservoir area (S. Paulo, Brazil)

open access: yesRevista de Saúde Pública, 1973
Após conhecimento de casos humanos de esquistossomose mansônica supostamente autóctones da Represa de Americana (São Paulo, Brasil) procedeu-se ao estudo epidemiológico da região. Foram constatados seis focos localizados junto à Represa.
Luiz A. Magalhães   +4 more
doaj   +1 more source

Physidae

open access: yes, 2007
Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp.
Cremonte, Florencia, Drago, Fabiana B.
openaire   +1 more source

Biomphalaria glabrata no Estado do Piauí Biomphalaria glabrata in the State of Piaui

open access: yesMemorias do Instituto Oswaldo Cruz, 1984
É registrado o primeiro encontro do molusco planorbideo Biomphalaria glabrata, hospedeiro intermediário do Schistosoma mansoni, no Estado do Piauí, coletado em vários criadouros na cidade de Parnaíba.
W. Lobato Paraense, Maurilio V. Araujo
doaj   +1 more source

Diversity of echinostomes (Digenea: Echinostomatidae) in their snail hosts at high latitudes

open access: yesParasite, 2021
The biodiversity of freshwater ecosystems globally still leaves much to be discovered, not least in the trematode parasite fauna they support. Echinostome trematode parasites have complex, multiple-host life-cycles, often involving migratory bird ...
Pantoja Camila   +5 more
doaj   +1 more source

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