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Registros recuperados: 17
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Color changing and behavioral context in the Amazonian Dwarf Cichlid Apistogramma hippolytae (Perciformes) Neotropical Ichthyology
Rodrigues,Raoni Rosa; Carvalho,Lucélia Nobre; Zuanon,Jansen; Del-Claro,Kleber.
Animal coloration has many functions, and fishes are noted among vertebrates for presenting a wide variety of color patterns. Although in marine fishes the relationship between body coloration and behavioral context is well documented, there's not much information about freshwater fishes. Here we describe color patterns displayed by the dwarf cichlid Apistogramma hippolytae and suggest that these patterns are dependent on different social and behavioral settings. Field observations were conducted underwater in a pond in Central Amazonia, Brazil. We recorded six body coloration patterns related to seven different kinds of behavioral activities: foraging, resting, reproductive and agonistic displays, aggression (attacking and fleeing) and parental care....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intraspecific communication; Interspecific communication; Color changes; Parental care; Cichlidae.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400013
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Courtship behavior and spawning of the hairy blenny Labrisomus nuchipinnis (Labrisomidae) in southeastern Brazil Neotropical Ichthyology
Gibran,Fernando Zaniolo; Santos,Flávia Borges; Santos,Hertz Figueiredo dos; Sabino,José.
Labrisomus nuchipinnis is a diurnal bottom-dwelling sit-and-wait carnivorous fish that inhabits holes and rifts of rocky areas in tropical shallow waters. Here we report on the courtship behavior and spawning of this hairy blenny in southeastern Brazil, with a detailed description and comparison with other Blennioidei. Labrisomus nuchipinnis is a territorial species that was observed courting with more than one female, and presenting a well defined pattern cycle related to reproductive behavior and paternal egg care. Adhesive demersal eggs are laid on small algae-covered rocks at sites with increased current velocity within the male's territory, which may enable higher egg survivorship and shorter developmental time.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mating behavior; Oviposition; Parental care; Blennies; South Atlantic.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000300009
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Diet and food consumption of the pearl cichlid Geophagus brasiliensis (Teleostei: Cichlidae): relationships with gender and sexual maturity Neotropical Ichthyology
Bastos,Rodrigo F.; Condini,Mário V.; Varela Junior,Antonio S.; Garcia,Alexandre M..
Despite the importance of the pearl cichlid Geophagus brasiliensis for the aquarium fish trade worldwide and its wide distribution, many aspects of its biology, such as the relationships between its feeding ecology and reproductive behavior, are not fully understood in natural conditions on its native habitat. In this paper, we investigated its diet focusing on how differences in diet and food consumption are related to differences in gender and sexual maturity. The digestive tract of each individual was dissected and had its content analyzed, whereas each gonad was microscopically analyzed to determine gender (male/female) and sexual maturity (immature/mature). A total of 28 females and 31 males were analyzed. Mature individuals were more common than...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding ecology; Parental care; Patos-Mirim lagoon complex; Reproduction.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400013
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Foraging, oviposition sites and notes on the natural history of the harvestman Heteromitobates discolor (Opiliones, Gonyleptidae) Biota Neotropica
Silva,Norton Felipe dos Santos; Willemart,Rodrigo Hirata.
The lack of data on the natural history often hampers phylogenetic studies on the evolution of behavior. Herein we provide quantitative field data on foraging and oviposition sites of a Neotropical harvestman belonging to a subfamily with a published phylogeny, Goniosomatinae. Heteromitobates discolor rests during the day on granitic boulders on rivers, laying eggs in sheltered and darker areas. The female guard the eggs and aggressively respond to approaching conspecific females. In the absence of the female, ants, conspecifics and reduviids may predate the eggs. Egg-guarding females are known not to leave the clutch, but males and non-guarding females may leave the granitic boulders and forage on the vegetation at night, close to the river margins and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parental care; Maternal care; Microhabitat choice; Substrate choice; Laniatores; Goniosomatinae.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300103
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Management proposal based on the timing of oral incubation of eggs and juveniles in the sentinel species Genidens genidens (Siluriformes: Ariidae) in a tropical estuary Neotropical Ichthyology
Maciel,Thaís Rodrigues; Vaz-dos-Santos,André Martins; Caramaschi,Erica Pellegrini; Vianna,Marcelo.
ABSTRACT Ariids such as Genidens genidens are particularly susceptible to overfishing because of their complex reproductive mechanisms, which result in slow replenishment of stocks. In this study, we obtained data about the reproductive ecology of the catfish G. genidens in the Guanabara Bay estuary, Rio de Janeiro, Brazil, providing supporting information for management of its fishery. The sex ratio, mean size of each sex at first sexual maturation, and female fecundity were determined and the reproductive period was characterized. The males:females ratio was 1:2. The fecundity is low and increases proportionally to the females’ growth in total length and weight. The breeding season occurs during the warmest months of the year, with spawning extending...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Catfish; Fishery management; Guanabara Bay; Parental care; Reproductive strategy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400208
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Maternal care in Gargaphia decoris (Heteroptera, Tingidae), with comments on this behavior within the genus and family Rev. Bras. entomol.
Guidoti,Marcus; Tallamy,Douglas W.; Marsaro Júnior,Alberto Luiz.
Maternal care in Gargaphia decoris is described for the first time. A video is presented as supplementary material. The knowledge on such trait within Tingidae is summarized. The behavior within the family is discussed, and the potential as a source of phylogenetic characters for further analyses is stressed.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Gargaphia; Neotropical; Parental care; Solanum concinnum.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000200104
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Nest building and description of parental care behavior in a temperate reef fish, Chromis crusma (Pisces: Pomacentridae) RChHN
Navarrete-Fernández,Teresa; Landaeta,Mauricio F; Bustos,Claudia A; Pérez-Matus,Alejandro.
BACKGROUND: Subtle ecological and behavioral mechanisms that enhance reproduction such as nest building by animals may provide useful information of population level processes. Variation in behavioral traits may be observed as phenotypic traits that are shaped by sexual and natural selection. Using ecological sampling of benthic substrata and underwater video recordings, we assessed nest-building behavior through habitat modifications, and size of individuals performing parental care behavior and egg/hatching traits of an abundant temperate reef fish, Chromis crusma. RESULTS: We identified that only male individuals performed nest building and uniparental care. We noted that nests containing filamentous green or red algae had the highest percent cover of...
Tipo: Journal article Palavras-chave: Reproductive strategies; Parental care; Reef fishes; Chile.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100027
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Offspring production in three freshwater crab species (Brachyura: Pseudothelphusidae) from the Amazon region and Central America Rev. Bras. Zool.
Wehrtmann,Ingo S.; Magalhães,Célio; Hernáez,Patricio; Mantelatto,Fernando L..
Freshwater crabs are an important component of the fauna of limnic environments, and out of the two true freshwater crab families present in the Neotropics, Pseudothelphusidae is the most diverse. Considering the lack of information regarding reproductive features of neotropical freshwater crabs, we studied, for the first time, the fecundity and the presence of juveniles carried by females of two pseudothelphusids from the Amazon region - Kingsleya latifrons (Randall, 1840) and Kingsleya ytupora Magalhães, 1986 - and one from Central America - Potamocarcinus magnus (Rathbun, 1896). The two Kingsleya species produced relatively few (56-114) and large eggs (1.9-3.7 mm), typical for species with an abbreviated or direct development. Recently produced eggs...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Costa Rica; Freshwater crabs; Direct development; Fecundity; Parental care.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600019
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Parental care in the buffy-tufted-ear marmoset (Callithrix aurita) in wild and captive groups BJB
SANTOS,C. V.; MARTINS,M. M..
Studies on cooperative care of offspring in callitrichid primates are biased in favor of observations in captivity. In the wild, however, individuals have to deal with environmental pressures, which may influence their social behavior. We compared the individual effort attributed to parental care offered by members of a wild group (couple, plus a subadult helper) and two captive groups (A: couple, plus an subadult helper, B: couple, plus four adult helpers) of the buffy-tufted-ear marmoset, Callithrix aurita, from weeks 1-12 after the infants' birth. The carrier (breeding male and female or helper) and the infant's feeding (food sharing and foraging for food) were recorded. Up to week four, while the wild breeding pair shared infant carrying at similar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parental care; Callithrix aurita; Carrying; Wild; Captivity.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400018
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Reproduction and food habits of the lined seahorse, Hippocampus erectus (Teleostei: Syngnathidae) of Chesapeake Bay, Virginia BJB
TEIXEIRA,R. L.; MUSICK,J. A..
The reproductive and feeding biology of the lined seahorse, Hippocampus erectus, was studied in Chesapeake Bay. Seahorses are monogamous, and males incubate the eggs received from females in a closed brood pouch (= marsupium). Females do not play any parental care after mating. Total sex ratio and the operational sex ratio was strongly skewed toward females. Males and females had similar number of eggs/embryos and hydrated oocytes, respectively. The number of eggs/embryos found in the male brood pouch varied from 97 to 1,552 (fish from 80 to 126 mm TL), whereas the number of hydrated oocytes in female varied from 90 to 1,313 (fish from 60 to 123 mm TL). Both, the number of eggs/embryos and hydrated oocytes were better linearly correlated to total weight...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parental care; Fecundity; Fertility; Amphipods; Estuary.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100011
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Reproductive aspects of the gulf pipefish, Syngnathus scovelli (Teleostei: Syngnathidae), from Southeastern Brazil BJB
GASPARINI,J. L.; TEIXEIRA,R. L..
This study attempts to assess the relationship between fecundity and fertility of males and females of the gulf pipefish, Syngnathus scovelli. Specimens of this pipefish were collected in detached algae in the inner surf-zone of a dissipative sandy beach in southeastern Brazil. 97 specimens were collected, and they were associates to detached algae. From these, 14 were males, 36 females and 47 immature. Male-female sex ratio was 0.4:1, which was significantly different from the expected 1:1 ratio. Fish ranged from 43 to 98 mm TL (Fig. 1), and males and females showed similar size. Only 7 males were pregnants, while 9 females had hydrated oocytes. Minimum number of eggs/embryos in the pouch was 30 and the maximum 92. Minimum number of hydrated oocytes was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parental care; Brood pouch; Sex role reversal; Surf zone; Detached algae.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100011
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Reproductive behavior of Cycloramphus dubius Miranda-Ribeiro (Amphibia, Anura, Leptodactylidae) Zoologia
Giaretta,Ariovaldo A; Cardoso,Adão J.
Cycloramphus dubius Miranda-Ribeiro. 1920 is a frog species from the coastal Atlantic Forest in Southeastern Brazil. It uses waterfalls of forested rivulets as breeding sites. The eggs are placed outside of water, between rock crevices or roots constantly wetted by water dripping. Clutches have about 60 eggs, and the tadpoles grow attached to rocks, out of water. Males of this species exhibit parental care, biting and/or pushing away strange objects approaching the egg masses. Two types of calls were identified in the spectrograms. The "advertisement calls" consist of juxtaposed pulses lasting 200ms; the "aggressive calls", also have the short pulses structure, and last around 300ms. The aggressive calls are emitted during territorial invasion.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphibia; Anura; Atlantic Forest; Breeding site; Territoriality; Parental care.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000200002
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Reproductive behavior of Leptodactylus mystacinus (Anura, Leptodactylidae) with notes on courtship call of other Leptodactylus species Iheringia, Sér. Zool.
Oliveira Filho,Júlio C. de; Giaretta,Ariovaldo A..
Here we present data on the reproductive behavior of Leptodactylus mystacinus (Burmeister, 1861), including details on courtship behavior. We also describe and compared the courtship calls of L. mystacinus, L. furnarius Sazima & Bokermann, 1978 and Leptodactylus sp. (L. aff. andreae). Field works were conducted in Uberlândia (central Brazil). During courtship, a female approaches a calling male and is led to a previously excavated chamber; a female can approach a silent male that beat his hands and/or feet on the ground as well. The courtship call of L. mystacinus consists of one single arch-shaped note (duration = 0.04 s) repeated 258 times per minute; the courtship calls of L. furnarius (0.06 s, 84 times per minute) and Leptodactylus sp. (0.15 s,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian savanna; Foam nests; Territoriality; Vocalization; Parental care.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000400015
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Reproductive biology of a bromeligenous frog endemic to the Atlantic Forest: Aparasphenodon arapapa Pimenta, Napoli and Haddad, 2009 (Anura: Hylidae) Anais da ABC (AABC)
LANTYER-SILVA,AMANDA S.F.; SOLÉ,MIRCO; ZINA,JULIANA.
The genus Aparasphenodon is restricted to South America and comprises five poorly studied species which present a straight relationship with bromeliads. Herein we present the reproductive biology of the species Aparasphenodon arapapa. Our observations indicate that A. arapapa is a prolonged breeder, reproducing throughout the year using bromeliads as a calling and breeding site. The tadpoles complete their development inside those plants. Males, females and juveniles may also use the bromeliads as a shelter. We also describe the courtship behavior and the parental care of the species with an evidence of temporary fidelity between male and female and propose a new reproductive mode.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reproductive mode; Oophagy; Parental care; Bromeliad.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200867
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Reproductive ecology and behavior of Thoropa miliaris (Spix, 1824) (Anura, Leptodactylidae, Telmatobiinae) Biota Neotropica
Giaretta,Ariovaldo Antonio; Facure,Kátia Gomes.
Thoropa species are distributed in southern and southeastern Brazil and have semiterrestrial tadpoles on rocky environments. Herein, we provide further data on reproduction, paternal care and tadpole cannibalism in T. miliaris. Guarding males were tested for disturbances in their egg masses. Egg masses were laid in stripes of wet rock; eggs were in a single layer and were adhered to the rock surface, roots, and to one another. The tadpoles hatched between four and six days. The egg number in two egg masses was 750 and 1190; eggs were gray and the yolk were about 1.7 mm in diameter; 2.3 mm with the jelly capsule. Aggressive interactions were observed between males. Males remained with their egg masses during the night and reacted aggressively to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thoropa miliaris; Parental care; Reproduction; Cannibalism; Atlantic forest; Brazil.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200008
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Reproductive seasonality of Geophagus steindachneri Eigenmann & Hildebrand, 1922 (Perciformes: Cichlidae) in a tropical mountain river Neotropical Ichthyology
Rangel-Serpa,Federico; Torres,Mauricio.
Reproductive seasonality in tropical freshwater fishes is strongly influenced by rainfall. In lowlands, floods spill laterally to floodplains and fishes usually breed during the flooding season. In mountain rivers, floods are sudden and flush out aquatic organisms. Fishes in mountain rivers usually breed during dry seasons, what has been hypothesized as a strategy to reduce mortality due to strong floods. If that is the case, mouth-brooding fishes should suffer less from strong floods and should have more prolonged breeding seasons in mountain rivers. Here we investigated the breeding activity of a mouth-brooding cichlid (Geophagus steindachneri) in a mountain river in Colombia using three kinds of evidence: monthly variation of gonad weight, macroscopic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Limnology; Parental care; Phenology; Rainfall; Spawning.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200421
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The first seven months of an infant of Alouatta guariba (Humboldt) (Primates, Atelidae): interactions and the development of behavioral patterns Zoologia
Miranda,João M. D.; Aguiar,Lucas M.; Ludwig,Gabriela; Moro-Rios,Rodrigo F.; Passos,Fernando C..
The development of the interactions of an infant primate with its mother and the other members of its social group plays a special role in the ethology and demography of the species, with consequences for their survive and their conservation. The objective of the present study is to investigate the development of an infant of Alouatta guariba (Humboldt, 1812) in the wild, its behavior and interactions during its first seven months of age, in a remnant of Araucaria Pine Forest in Paraná State, Brazil. Using the method of instantaneous scanning with 5 min intervals, a total of 46 hours and 15 minutes of direct observation (555 individual records) showed that the infant behavioral patterns during its first four months were characterized by high dependency,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Infancy; Ontogenetic development; Parental care; Social behavior.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400054
Registros recuperados: 17
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