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Associações de aves com insetos sociais: um sumário no Sudeste do Brasil Iheringia, Sér. Zool.
Sazima,Ivan; D'Angelo,Giulia B..
RESUMO As aves podem se agregar a diversos tipos de insetos sociais (formigas, vespas, cupins). Estas associações podem ser agrupadas em três tipos, um deles relacionado a atividade alimentar e dois, a atividade reprodutiva: 1) forragear seguindo formigas de correição; 2) nidificar nas proximidades de colônias ativas de vespas e formigas; 3) nidificar em colônia ativas de cupins. Os três tipos de associação podem ser considerados como exemplos de comensalismo. Sumariamos aqui as associações de aves com insetos sociais que observamos no Sudeste do Brasil. Seguir formigas de correição foi habitual a raro para uma grande variedade de espécies, de Accipitridae a Tyrannidae. Nidificar nas proximidades de colônias ativas de vespas foi habitual para uma espécie...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forrageio; Formigas-correição; Nidificação; Colônias de vespas; Cupinzeiros.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000300333
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The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays Neotropical Ichthyology
Garrone-Neto,Domingos; Sazima,Ivan.
One hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River. The ray species involved in such association are Potamotrygon falkneri and P. motoro, whose activity attract four cichlid species, namely Crenicichla britskii, Satanoperca pappaterra, Cichla kelberi, and Geophagus proximus, the two latter non-native species to the study area. The cichlids approach a ray when it begins to stir the substrate and form sediment clouds, and remain close to the ray during this activity only. The association is here regarded as following behavior even if very transient.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cichlidae; Feeding association; Potamotrygonidae; Hunting tactics; Southeastern Brazil.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300018
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Fallen leaves on the water-bed: diurnal camouflage of three night active fish species in an Amazonian streamlet Neotropical Ichthyology
Sazima,Ivan; Carvalho,Lucélia Nobre; Mendonça,Fernando Pereira; Zuanon,Jansen.
Resemblance to dead leaves is a well known type of camouflage recorded for several small vertebrates that dwell in the leaf and root litter on the ground. We present here instances of such resemblance in three species of nocturnal fishes (Siluriformes and Gymnotiformes) that spend the daytime among submersed root-tangle with leaf litter in Amazonian streams. All three species are very difficult to spot visually, due both to their shape and colors which blend with the substrate, as well as to the heterogeneous nature of their cover. Two species were recorded to lie on their sides, which adds to their resemblance to dead leaves. When disturbed, one species may drift like a waterlogged leaf, whereas another moves upwards the root-tangle, exposing its fore...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crypsis; Leaf resemblance; Defence against predators; Siluriformes; Gymnotiformes.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100013
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A remarkable sand-dwelling fish assemblage from central Amazonia, with comments on the evolution of psammophily in South American freshwater fishes Neotropical Ichthyology
Zuanon,Jansen; Bockmann,Flávio A.; Sazima,Ivan.
We studied a specialised assemblage of sand-dwelling fish species from a streamlet in central Amazonia. The five sanddwelling species comprised 15.2 % of the total number in the streamlet (33 species). Two of the sand-dwellers are daytime foragers, Characidium cf. pteroides (Crenuchidae) and Stauroglanis gouldingi (Trichomycteridae), whereas three ones are night-time foragers, Gymnorhamphichthys rondoni (Rhamphichthyidae), "Imparfinis" pristos and Mastiglanis asopos (Heptapteridae). With the exception of C. cf. pteroides, the remainder species bury in the sand during their resting period. All five species bear a cryptic, sand-colour pattern, and some are translucent, traits which we regard as advantageous both for evasion from predators and for approaching...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest streams; Fish diversity; Phylogeny; Feeding behaviour; Drift-trap net.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100012
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Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex Neotropical Ichthyology
Bockmann,Flávio A.; Sazima,Ivan.
Trichomycterus maracaya, a new species of Trichomycteridae, is described from a streamlet in the upper rio Paraná, Poços de Caldas, State of Minas Gerais, southeastern Brazil. The following putative autapomorphies distinguishes T. maracaya from congeneric species: 1) row of lateral blotches not forming a stripe at any phase during ontogeny; 2) superficial layer of pigmentation of juveniles and large (presumably adults) specimens consisting solely of scattered chromatophores. Furthermore, the new species is characterized by a combination of yellow ground color in life and mottled pattern formed by small to medium-sized, brown, irregularly-coalescent, well-defined deeper-lying blotches, and more superficial dots on the body. Trichomycterus maracaya is...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pencil catfish; Ostariophysi; Endemic; Neotropics.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200003
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Fishes associated with spinner dolphins at Fernando de Noronha Archipelago, tropical Western Atlantic: an update and overview Neotropical Ichthyology
Sazima,Ivan; Sazima,Cristina; Silva-Jr,José Martins da.
An update is presented for fish species associated with spinner dolphins at Fernando de Noronha Archipelago, tropical Western Atlantic, providing a general view of their diversity. The associates are mostly reef-dwelling fishes that feed on the dolphin wastes. Twelve species are habitual or occasional plankton-eaters and two species are herbivores that occasionally forage on floating pieces of algae. One species is a strict carnivore, one species is a hitchhiker that forages on a variety of foods including parasites and dead tissue from the dolphins, and one species is a carnivore that joins the dolphin groups to forage on schools of small fishes or squids. We predict that the list of fish associated with spinner dolphins will expand mostly with addition...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish-cetacean symbiosis; Foraging groups; Feeding modes; Plankton-eaters.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000400009
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Predictive factors of species composition of follower fishes in nuclear-follower feeding associations: a snapshot study Neotropical Ichthyology
Teresa,Fabrício B.; Sazima,Cristina; Sazima,Ivan; Floeter,Sergio R..
We tested whether habitat, identity, size of nuclear fishes, and intensity of bottom disturbance caused by their foraging can predict the composition of fish followers in nuclear-follower feeding associations. The study was carried out in a stream of the Serra da Bodoquena, Mato Grosso do Sul State, Southwestern Brazil. We performed underwater observational sessions (total 12 h) of such interspecific interactions to obtain data about the identity and abundance of the followers in the association, as well as the identity and size of the nuclear fish. We also evaluated whether different intensities of bottom disturbance due to the nuclear fish foraging and type of habitat may influence interactions. We recorded 38 episodes involving nuclear and follower...
Tipo: Info:eu-repo/semantics/article
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400913
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The glassy sweepers' way: seeking a versatile wrasse to be cleaned Neotropical Ichthyology
Sazima,Cristina; Krajewski,João Paulo; Bonaldo,Roberta Martini; Sazima,Ivan.
Diurnal reef fishes compose the bulk of clients that seek cleaner fishes' services, but some nocturnal species that shelter at daytime also seek the cleaners. While doing so the nocturnal clients must leave their hiding places and thus they get exposed to potential diurnal predators. We report here on the cleaning interactions between a daytime cleaner wrasse (Thalassoma noronhanum) and a night time active client (Pempheris schomburgki) that usually remains sheltered at daytime. We recorded P. schomburgki leaving their shelter at daytime and heading towards T. noronhanum, whenever the cleaner swam by the shelter. Since T. noronhanum is able to tend temporary cleaning station near the safety of the shelters of its clients, P. schomburgki lessens a possible...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pempheris schomburgki; Thalassoma noronhanum; Cleaning symbiosis; Reef fishes; SW Atlantic.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000100008
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Species records, mistaken identifications, and their further use: the case of the diskfish Echeneis naucrates on a spinner dolphin Neotropical Ichthyology
Sazima,Ivan.
The single record of the sharksucker (Echeneis naucrates) attached to a spinner dolphin (Stenella longirostris) is based on a photograph taken at Fernando de Noronha Archipelago, off northeast Brazil. A careful examination of this photograph demonstrates that the diskfish attached to the dolphin is the whalesucker (Remora australis), a species so far recorded on cetaceans only. Thus, the record of S. longirostris as a host for E. naucrates is here invalidated and the value of vouched records is reiterated. The exaggerated reliance even on refereed papers dealing with species records and checklists that lack or have dubious vouchers and their further use is commented upon.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Remora-dolphin associations; Mistaken species record; Use of vouchers; Refereed papers.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000400010
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The almost invisible league: crypsis and association between minute fishes and shrimps as a possible defence against visually hunting predators Neotropical Ichthyology
Carvalho,Lucélia Nobre; Zuanon,Jansen; Sazima,Ivan.
Camouflage is one of the most widespread defence modes used by substrate-dwelling animals, whereas transparency is generally found in open-water organisms. Both these defence types are regarded as effective against visually guided predators. We present here three assemblages of similarly-sized freshwater fish and shrimp species which apparently rely on camouflage and transparency to evade some of their potential predators. In one of the associations, there is a transition from cryptic colours and translucency to transparency of the component species according to the position each of them occupies in the habitat. The likeness between the fishes and the shrimps is here regarded as a type of protective association similar to numerical or social mimicry....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Camouflage; Transparency; Defensive association; Mimicry; Freshwater fauna.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200008
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Wolf in a sheep's clothes: juvenile coney (Cephalopholis fulva) as an aggressive mimic of the brown chromis (Chromis multilineata) Neotropical Ichthyology
Sazima,Ivan; Krajewski,João Paulo; Bonaldo,Roberta Martini; Sazima,Cristina.
We found yellowish juvenile coneys (Cephalopholis fulva) at Fernando de Noronha Archipelago, off Northeast Brazil, joining schools of similarly sized and coloured brown chromis (Chromis multilineata) when these latter closely approach the rocky reefs. Mingled within the mid-water hovering group of the plankton-feeding chromis, the piscivorous coney is able to approach unaware prey - an instance of aggressive mimicry. Three out of four coney individuals hunting under such disguise were successful in their attempts to prey on the otherwise wary rock-dwelling blenny (Malacoctenus species). This is the first instance of an epinepheline grouper mimicking a schooling and plankton-eating damselfish model in the West Atlantic.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mimicry; Hunting tactic; Epinepheline grouper; Plankton-feeding damselfish.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200011
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Does the association of young fishes with jellyfishes protect from predation?A report on a failure case due to damage to the jellyfish Neotropical Ichthyology
Bonaldo,Roberta Martini; Krajewski,João Paulo; Sazima,Ivan.
The fish-jellyfish association is regarded as a temporary symbiosis believed to protect the fishes from predators. Here we report on juvenile scads (Trachurus lathami) associated with the jellyfish Chrysaora lactea, opportunistically preyed on by the grouper Mycteroperca acutirostris while the medusa was being damaged. The predation instances occurred when a couple of the filefish Stephanolepis hispidus approached the jellyfish to nibble on its umbrella. The feeding of the filefish caused a momentary disturbance of the defensive association, perceived and capitalised on by the watchful grouper, an opportunistic and versatile hunter. Before and after the disturbance, the protection offered to the young fish by the jellyfish showed to be effective, which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Protective symbiosis; Fish-jellyfish association; Predation; Defence; SW Atlantic.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200008
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Turtle cleaners: reef fishes foraging on epibionts of sea turtles in the tropical Southwestern Atlantic, with a summary of this association type Neotropical Ichthyology
Sazima,Cristina; Grossman,Alice; Sazima,Ivan.
In the present study we record several instances of reef fish species foraging on epibionts of sea turtles (cleaning symbiosis) at the oceanic islands of Fernando de Noronha Archipelago and near a shipwreck, both off the coast of Pernambuco State, northeast Brazil. Nine reef fish species and three turtle species involved in cleaning are herein recorded. Besides our records, a summary of the literature on this association type is presented. Postures adopted by turtles during the interaction are related to the habits of associated fishes. Feeding associations between fishes and turtles seem a localized, albeit common, phenomenon.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cleaning symbiosis; Foraging association; Cheloniidae; Tropical Western Atlantic.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100023
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A honeymoon in Brazil: the spawning behavior of an exotic reef fish in the western south Atlantic Neotropical Ichthyology
Luiz,Osmar J; Sazima,Ivan; Waib,Luis F; Ferreira,Carlos Eduardo L.
The reproductive strategies of surgeonfishes of the genus Acanthurus are well known for all Atlantic species except the Monrovia doctorfish, Acanthurus monroviae, an eastern Atlantic surgeonfish whose biology remains largely unknown. We provide here the first account on the spawning behavior of A. monroviae, an exotic fish on rocky reefs of southeastern Brazilian coast.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Acanthurus monroviae; Acanthuridae; Reproduction; Laje de Santos; Rocky reef.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200016
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Turtle riders: remoras on marine turtles in Southwest Atlantic Neotropical Ichthyology
Sazima,Ivan; Grossman,Alice.
An overview is presented for a poorly documented relationship between reef vertebrates in Southwest Atlantic: remoras (Echeneidae) associated with marine turtles. Two remora species (Echeneis naucrates and Remora remora) and four turtle species (Caretta caretta, Chelonia mydas, Eretmochelys imbricata, and Dermochelys coriacea) are here recorded in symbiotic associations in the SW Atlantic. Echeneis naucrates was recorded both on the coast and on oceanic islands, whereas R. remora was recorded only at oceanic islands and in the open sea. The remora-turtle association is usually regarded as an instance of phoresis (hitchhiking), albeit feeding by the fish is also involved in this symbiosis type. This association seems to be rare in SW Atlantic.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Marine symbiosis; Remora; Echeneis; Phoresis; Feeding association; Mating opportunity.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100014
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Stirring, charging, and picking: hunting tactics of potamotrygonid rays in the upper Paraná River Neotropical Ichthyology
Garrone-Neto,Domingos; Sazima,Ivan.
Hunting tactics of potamotrygonid freshwater rays remain unreported under natural conditions. Three main foraging tactics of Potamotrygon falkneri and P. motoro are described here based on underwater observations in the upper Paraná River. Both species displayed similar behaviors. The most common tactic was to undulate the disc margins close to, or on, the bottom and thus stirring the substrate and uncovering hidden preys. Another tactic was to charge upon prey concentrated in the shallows. The least common tactic was to pick out prey adhered to the substrate. The first tactic is widespread in several species of marine rays in the Dasyatidae, whereas the remainder (especially picking up prey on substrata above water surface) may be restricted to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Potamotrygonidae; Potamotrygon falkneri; Potamotrygon motoro; Variable hunting tactics; Southwestern Brazil.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000100015
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Uma nova espécie de Crossodactylus da Serra do Cipó, Minas Gerais, Brasil (Amphibia, Leptodactylidae) Zoologia
Caramaschi,Ulisses; Sazima,Ivan.
Crossodactylus bokermanni, sp. n., is described from Serra do Cipó, Minas Gerais, Southeastern Brasil. The new species is characterized by the small size (20-27 mm), slender build, long legs, narrow head, long and acuminate snout, rounded but fairly defined canthus rostralis, and small tympanum. Also, notes on its habits are made and its tadpole is described.
Tipo: Info:eu-repo/semantics/article
Ano: 1985 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751985000100005
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New records and range extensions of reef fishes in the Western South Atlantic, with comments on reef fish distribution along the Brazilian coast Zoologia
Moura,Rodrigo Leão de; Gasparini,João Luiz; Sazima,Ivan.
New occurrences of 11 species of reef fishes are reported for the western South Atlantic, range extensions are recorded for additional 37 reef species along the Brazilian coast, and the distribution of reef ichthyofauna along the eastern coast of South America is commented upon.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Western South Atlantic; Brazilian ichthyofauna; Reef fishes; New records; Range extensions; Latitudinal trends.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200017
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Uma nova espécie de Thoropa da Serra do Cipó, Minas Gerais, Brasil (Amphibia, Leptodactylidae) Zoologia
Caramaschi,Ulisses; Sazima,Ivan.
Thoropa megatympanum, sp. n., is described from the Serra do Cipó, Minas Gerais, Southeastern Brasil. The new species is related to T. miliaris (Spix), from which it is readily distinguished by its smaller size, broader head, larger tympanum, shorter legs, and dorsal pattern mottled. The eggs and the tadpole are also described.
Tipo: Info:eu-repo/semantics/article
Ano: 1983 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751983000300004
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Playful birds: cormorants and herons play with objects and practice their skills Biota Neotropica
Sazima,Ivan.
Play is a behaviour known mostly for mammals, although birds are recorded to play as well. Here I describe the play behaviour for two bird species, the Neotropic Cormorant (Phalacrocorax brasilianus) and the Green Heron (Butorides striata) in southeastern Brazil. Juvenile and adult cormorants were recorded to manipulate sticks, leaves, rootlets, and plant debris while on the ground. They also played with sticks, leaves, pods, and plant debris, as well as live or dead fish while in the water, repeatedly grabbing the object and submerging it. When the object was a fish, they tossed it in the air as well. Juvenile herons played with small pieces of wood, fruits, and other floating objects, which they picked up and tossed repeatedly in the water. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aves; Phalacrocorax brasilianus; Butorides striata; Play behaviour; Object and social play; Motor training.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200025
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