Results 41 to 50 of about 815 (183)
The first freshwater molluscs from Wrangel Island, Arctic Russia [PDF]
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
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]
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
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
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
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
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
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
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