Results 31 to 40 of about 19,555 (242)

Drivers of parasite sharing among Neotropical freshwater fishes [PDF]

open access: yesJournal of Animal Ecology, 2014
SummaryBecause host–parasite interactions are so ubiquitous, it is of primary interest for ecologists to understand the factors that generate, maintain and constrain these associations. Phylogenetic comparative studies have found abundant evidence for host‐switching to relatively unrelated hosts, sometimes related to diversification events, in a ...
Mariana P. Braga   +2 more
openaire   +2 more sources

Ecosystem size predicts eco-morphological variability in a postglacial diversification [PDF]

open access: yes, 2017
Identifying the processes by which new phenotypes and species emerge has been a long-standing effort in evolutionary biology. Young adaptive radiations provide a model to study patterns of morphological and ecological diversification in environmental ...
Adams, Colin E.   +3 more
core   +1 more source

Biology and Physiology of Freshwater Neotropical Fish

open access: yes, 2020
Biology and Physiology of Freshwater Neotropical Fish is the all-inclusive guide to fish species prevalent in the neotropical realm. It provides the most updated systematics, classification, anatomical, behavioral, genetic, and functioning systems information on freshwater neotropical fish species.
Baldisserotto, Bernardo   +2 more
openaire   +2 more sources

Biometric relations of freshwater fishes of the Suaza River (Huila Department, Colombia) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2016
The knowledge of freshwater fishes in remote Andean mountains is scarce and restricted to changes of occurrence distribution along a specific gradient.
I. Tobes   +3 more
doaj   +3 more sources

Spiroxys contortus (Rudolphi, 1819) and Hedruris orestiae (Moniez, 1889) in Argentine turtles [PDF]

open access: yes, 2016
Knowledge of parasites in turtles is scarce,particularly with regard to freshwater turtles of SouthAmerica. Here, we describe the association of Spiroxyscontortus (Rudolphi, 1819) in Phrynops hilarii (Duméril& Bibron, 1835) and S.
Alcalde, Leandro   +4 more
core   +3 more sources

Abundance, sex-ratio, length–weight relation, and condition factor of non-annual killifish Atlantirivulus riograndensis (Actinopterygii: Cyprinodontiformes: Rivulidae) in Lagoa do Peixe National Park, a Ramsar Site of Southern Brazil [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2012
Background. The genus Atlantirivulus includes 11 species distributed along coastal river basins and lagoons of eastern and southern Brazil. Most killifishes are threatened with extinction mostly due to their restricted distribution ranges, small ...
L.E.K. Lanés   +2 more
doaj   +3 more sources

Length at First Maturity, Spawning TIME, and Reproductive Output in the Females of Hamilton\u27s Anchovy (Thryssa Hamiltonii Gray, 1835) [PDF]

open access: yes, 2020
The Hamilton\u27s anchovy (Thryssa hamiltonii Gray, 1835) is one of main target species in Indonesian small pelagic fishery. This engraulids member is characterized by short lifespan and fast reproductive cycle.
Dewi, N. N. (Nina)   +2 more
core  

The piranha genome provides molecular insight associated to its unique feeding behavior [PDF]

open access: yes, 2019
The piranha enjoys notoriety due to its infamous predatory behavior but much is still not understood about its evolutionary origins and the underlying molecular mechanisms for its unusual feeding biology.
Adolfi, Mateus   +9 more
core   +2 more sources

Revalidation and redescription of Steindachnerina nigrotaenia and redescription of S. insculpta (Characiformes: Curimatidae)

open access: yesNeotropical Ichthyology, 2019
Steindachnerina nigrotaenia is resurrected from the synonym of S. brevipinna and considered a valid species. The previous designation of the lectotype of S. nigrotaenia is considered invalid and a new lectotype is designated herein.
Heraldo A. Britski   +3 more
doaj   +1 more source

Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil [PDF]

open access: yesCheck List, 2020
The ribeirão Sucuri, a tributary of the rio Tietê, and part of the upper rio Paraná basin, is located in the municipality of Pongaí, São Paulo state.
Lais Reia   +4 more
doaj   +3 more sources

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