Download Consulta: subjectFacets:"Mimicry" Registros recuperados: 14 Data

Consulta: subjectFacets:"Mimicry"
Registros recuperados: 14
Data/hora: 08/06/2017 16:38:22
An illustrated key to male Actinote from Southeastern Brazil (Lepidoptera, Nymphalidae)
Provedor de dados: 49
Autores: Francini,Ronaldo Bastos; Penz,Carla M.
In certain times of the year, Actinote butterflies can be vastly abundant in Southeastern Brazil, thus representing conspicuous
denizens of our fauna. Their wing coloration allows for the recognition of five major patterns, which probably resulted from
mimicry. Furthermore, examination of series of field-collected and reared specimens clearly demonstrates a high intra-specific
variation in wing color pattern. In concert, inter-specific resemblance (mimicry) and intra-specific variation make it difficult to
discriminate Actinote species from each other. This key aims at providing a tool for identification of male Actinote. To that effect,
we provide diagnostic characters and illustrations of wings and male genitalia for 22 species. We hope that the clear...
Tipo: Journal article
Palavras-chave: Butterfly; Identification; Genitalia; Mimicry.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100013
Head triangulation as anti-predatory mechanism in snakes
Provedor de dados: 49
Autores: Dell'Aglio,Denise Dalbosco; Toma,Tiago Shizen Pacheco; Muelbert,Adriane Esquivel; Sacco,Anne Gomes;
Tozetti,Alexandro Marques.
Anti-predator mechanisms in snakes are diverse and complex, including mimetic behavior. Some snakes triangulate their head,
probably mimicking other more dangerous snakes. However, there is a lack of studies that demonstrate the effectiveness of this
behavior with natural predators. The aim of this study was to verify, using artificial snakes, if snakes with triangular heads are less
susceptible to attack by predators, and if predatory attack is targeted to the head of serpents. Artificial snakes were systematically
arranged on a road border. The rate of attacked models was 48.71%. Number of attacks on models with rounded head was
significantly higher than in models with triangular head. There was a significant difference between the places of attack on...
Tipo: Journal article
Palavras-chave: Artificial models; Defensive behavior; Mimicry; Predation rate; Reptiles.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300031
Caracterización morfológica y fenología de biotipos de Phalaris minor RETZ. resistentes y susceptible
a herbicidas inhibidores de la ACCasa.
Provedor de dados: 32
Autores: García Franco, José Luis.
Phalaris minor Retz. (“alpistillo”) es considerada como una maleza importante en el cultivo de trigo en la región del Bajío
Mexicano, que ha desarrollado resistencia a herbicidas inhibidores de la Acetil Coenzima A Carboxilasa (ACCasa). Se ha
consignado que más de la mitad de la población de Phalaris spp. comúnmente escapa del control manual a causa de la similitud
morfológica con el cultivo de trigo. El objetivo de la presente investigación fue determinar si existen diferencias morfológicas y
fenológicas entre biotipos resistentes y susceptible de P. minor a los herbicidas, y cultivares de trigo. Se realizaron experimentos
en Montecillo, México en condición de no competencia. Se emplearon cuatro biotipos de alpistillo resistentes y uno susceptible,...
Palavras-chave: Graminicidas; Mimetismo; Caracterización morfológica; Trigo; Graminicides; Morphological characterization;
Wheat; Botánica; Maestría; Mimicry.
Ano: 2013
URL: http://hdl.handle.net/10521/1873
Alfred Russel Wallace and the Darwinian Species Concept: His Paper on the Swallowtail Butterflies
(Papilionidae) of 1865
Provedor de dados: 72
Autores: Mallet,James.
Soon after his return from the Malay Archipelago, Alfred Russel Wallace published one of his most signifcant papers. The paper
used butterfies of the family Papilionidae as a model system for testing evolutionary hypotheses, and included a revision of the
Papilionidae of the region, as well as the description of some 20 new species. Wallace argued that the Papilionidae were the most
advanced butterfies, against some of his colleagues such as Bates and Trimen who had claimed that the Nymphalidae were more
advanced because of their possession of vestigial forelegs. In a very important section, Wallace laid out what is perhaps the
clearest Darwinist defnition of the differences between species, geographic subspecies, and local ‘varieties.‘ He also discussed...
Tipo: Journal article
Palavras-chave: History of evolution; Mimicry; Species concepts; Geographic variation; Taxonomic infation; Island biology;
Lepidoptera.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382009000300005
The aggregation of Chauliognathus species (Coleoptera, Cantharidae) and its possible role for
coexistence and mimicry
Provedor de dados: 76
Autores: Machado,Vilmar; Araújo,Aldo Mellender de.
The relative population sizes of a species complex of Chauliognathus are reported, as well as their spatial distribution associated
with different patches of food plants. Field work was done at Fazenda Santa Isabel, municipality of Guaíba, State of Rio Grande
do Sul, Brazil. The results suggest that two mechanisms account for the reduction in food competition among the species
involved: one is asynchrony in the appearance of the species in the area, and the other is aggregation in different patches of food
plants. Since the species here reported show a similar colour pattern (yellow-black) the possibility of the occurrence of serial
mimicry in this complex of species is dicussed.
Tipo: Journal article
Palavras-chave: Chauliognathus; Aggregation; Competition; Mimicry; Coleoptera.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200002
Hyperthelie, Wurfgröße und Trächtigkeitsdauer bei der Unterfamilie Tenrecinae Cabrera, 1925
(Mammalia: Insectivora: Tenrecidae), nebst Bemerkungen zur Längsstreifung der Gattung
Hemicentetes
Provedor de dados: 16
Autores: Poduschka, Walter.
In a comparison of basic reproductive variables (number of teats, litter size, and duration of pregnancy) in the Madagascan
Tenrecinae, some striking features (hyperthelia, litter size) are observed in Tenrec ecaudatus Lacépède, 1799 and the genus
Hemicentetes Mivart, 1871. These variations are compared to Setifer setosus Froriep, 1806 and Echinops telfairi Martin, 1838.
Tenrec ecaudatus gives birth to litters at intervals shorter than what was once believed to be the duration of pregnancy. This could
be due either to superfetation, or to giving birth to one litter in two or more installments. The longitudinal stripe pattern of the
genus Hemicentetes is interpreted as a mimicry of the sympatric, equally striped, juvenile Tenrec ecaudatus. The latter...
Tipo: Article / Letter to the editor
Palavras-chave: Insectivora; Tenrecidae; Hyperthelia; Reproduction; Litter size; Pregnancy; Mimicry.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504596
The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 3. The
P. inclyta- to P. auriguttata-groups
Provedor de dados: 16
Autores: Vardy, C.R.
In this part the remaining 78 species of the genus Pepsis, belonging to ten species-groups, are described and figured, and their
phylogenetics and biogeography are discussed. 14 of the species are described as new: P. achterbergi spec. nov., P. adonta spec.
nov., P. boharti spec. nov., P. caliente spec. nov., P. dayi spec. nov., P. esmeralda spec. nov., P. ianthoides spec. nov., P.
jamaicensis spec. nov., P. krombeini spec. nov., P. martini spec. nov., P. multichroma spec. nov., P. nanoides spec. nov., P. wahisi
spec. nov., and P. willinki spec. nov. Three species-names, P. infuscata Spinola, 1841, P. lampas Lucas, 1895, and P. thoreyi
Dahlbom, 1845, are recalled from synonymy. The following 293 names are newly synonymized (the valid names are listed...
Tipo: Article / Letter to the editor
Palavras-chave: Spider-hunting wasps; Pompilidae; Pepsis; Systematic revision; New species; Mimicry; Neotropical; Natural
history; 42.75.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/210789
Systematic notes on Asian birds. 42. A preliminary review of the Oriolidae
Provedor de dados: 16
Autores: Dickinson, E.C.
Asian orioles that have been reviewed since Greenway (1962) are discussed and recommendations are made for the recognition of
subspecies. Reasons are provided for the split of Oriolus steerii Sharpe, 1877a, from Oriolus xanthonotus Horsfield, 1821,
originally proposed in Dickinson et al. (1991) when such reasons were omitted. Problem areas remain and research is suggested,
some morphological, some molecular.
Tipo: Article / Letter to the editor
Palavras-chave: Orioles; Figbirds; Oriolidae; Mimicry; Friarbird; Lipochrome; 42.83.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/215554
The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 2. The
P. grossa- to P. deaurata-groups
Provedor de dados: 16
Autores: Vardy, C.R.
In this Part, 37 species of the genus, belonging to eight species-groups, are described and figured, and their phylogenetics and
biogeography are discussed. Seven of the species are described as new: P. ecuadorae, friburgensis, marthae, onorei, pulawskii,
riopretensis, yucatani. One species-name, P. tolteca Lucas, 1895, is recalled from synonymy and one name, P. lycaon Banks,
1945, is upgraded from varietal to species status. The following 49 names are newly synonymized (valid names first): P. grossa
(Fabricius, 1798) = P. formosus Say, 1823, P. affinis Dahlbom, 1845, P. obliquerugosa Lucas, 1895, P. nephele Lucas, 1895, P.
theresiae Kriechbaumer, 1900, P. colombica Brèthes, 1926, P. pattoni Banks, 1945, P. pellita Haupt, 1952; P. aquila Lucas, 1895
= P....
Tipo: Article / Letter to the editor
Palavras-chave: Spider-hunting wasps; Pompilidae; Pepsis; Systematic revision; New species; Mimicry; Neotropical; Natural
history; 42.75.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/220200
Juveniles of the piscivorous dourado Salminus brasiliensis mimic the piraputanga Brycon hilarii as an
alternative predation tactic
Provedor de dados: 83
Autores: Bessa,Eduardo; Carvalho,Lucélia Nobre; Sabino,José; Tomazzelli,Paola.
In the district of Bom Jardim, in Nobres, Mato Grosso State, Brazil, there are clear water streams originating on karstic terrain.
The dourado, Salminus brasiliensis, is an apex stalking predator in these streams. In clear waters, where visually oriented prey
may perceive predator in advance, surprise is needed for successful attacks. These streams are cohabited by other Characiformes,
like the frugivorous piraputanga Brycon hilarii, which lives in schools and exhibits body colour and shape similar to the dourados.
Here we describe an alternative predatory tactic for juvenile dourado occurring in headwater streams of the Paraguay River basin,
in which they act as an aggressive mimic of the piraputanga. Based on 43 h of observations in Bom Jardim, and on...
Tipo: Journal article
Palavras-chave: Characid; Feeding behavior; Mimicry; Underwater observations.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200012
Redescription of Astyanax multidensEigenmann, 1908 (Characiformes: Characidae), a small characid
of the Brazilian Amazon
Provedor de dados: 83
Autores: Marinho,Manoela M. F.; Birindelli,José L. O.
Astyanax multidensis redescribed based on syntypes and additional specimens from the rio Amazonas at Silves, Amazonas State
and Óbidos, Pará State, and the rios Trombetas, Tapajós, Xingú, and Araguaia.Astyanax multidensis distinguished from congeners
by the unique combination of five to seven maxillary teeth, 31 to 34 pored lateral-line scales, 20 to 23 branched anal-fin rays, and
a dark triangular blotch restricted to the middle caudal-fin rays. Astyanax multidens was collected syntopically with Jupiaba
paranatinga in the rio Tapajós basin and with Jupiabacf. essequibensis in the rio Xingu basin, which have paired anteriorly
oriented pelvic-fin spines, a antipredatory mechanism. Based on the external morphological similarity betweenAstyanax
multidens and...
Tipo: Journal article
Palavras-chave: Jupiaba; Mimicry; Neotropical; Taxonomy.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100045
Wolf in a sheep's clothes: juvenile coney (Cephalopholis fulva) as an aggressive mimic of the brown
chromis (Chromis multilineata)
Provedor de dados: 83
Autores: 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: Journal 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
A new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the upper rio Paraná
basin, Brazil
Provedor de dados: 83
Autores: Tencatt,Luiz F. C.; Britto,Marcelo R.; Pavanelli,Carla S.
A new species of Corydorasis described from three tributaries of the rio Ivaí drainage, upper rio Paraná basin, Paraná State, Brazil.
The new species can be distinguished from most of its congeners by the presence of three nasal pores. Other diagnostic features
are the lower number of serrations in posterior margin of pectoral and dorsal spines and presence of four to six small black
blotches along the midline of the flank. The possible mimetic relationship between the new species and Characidium
heirmostigmatais discussed.
Tipo: Journal article
Palavras-chave: Characidium heirmostigmata; Corydoradinae; Mimicry; Rio Ivaí; Taxonomy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000100089
The almost invisible league: crypsis and association between minute fishes and shrimps as a possible
defence against visually hunting predators
Provedor de dados: 83
Autores: 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: Journal 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