Consulta: subjectFacets:"Mimicry"
Registros recuperados: 17
Data/hora: 06/06/2024 01:19:51

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

A new species of Falsocaenia (Coleoptera: Lycidae) from Brazil
Provedor de dados: 76
Autores: Nascimento,Elynton A. do; Bocakova,Milada.
ABSTRACT A new species of Lycidae, Falsocaenia santatereza sp. nov. is described and illustrated. This species is a member of a Müllerian mimicry ring from the Atlantic Forest in Brazil, presenting color pattern also found in other sites of Neotropical region. There are now 15 species from Falsocaenia Pic, 1922, all restricted to Neotropical region. Additionally, a new site of occurrence is registered for Falsocaenia paranana (Pic, 1922).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; New species; Neotropical Region; Atlantic Forest; Mimicry.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100219

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: Info:eu-repo/semantics/article
Palavras-chave: Chauliognathus; Aggregation; Competition; Mimicry; Coleoptera.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200002

3-Acetoxy-fatty acid isoprenyl esters from androconia of the ithomiine butterfly Ithomia salapia
Provedor de dados: 5
Autores: Mann, Florian; Szczerbowski, Daiane; De Silva, Lisa; Mcclure, Melanie; Elias, Marianne; Schulz, Stefan.
Male ithomiine butterflies (Nymphalidae: Danainae) have hairpencils on the forewings (i.e. androconia) that disseminate semiochemicals during courtship. While most ithomiines are known to contain derivatives of pyrrolizidine alkaloids, dihydropyrrolizines or g-lactones in these androconia, here we report on a new class of fatty acid esters identified in two subspecies, Ithomia salapia aquinia and I. s. derasa. The major components were identified as isoprenyl (3-methyl-3-butenyl) (Z)-3-acetyloxy-11-octadecenoate, isoprenyl (Z)-3-acetyloxy-13-octadecenoate (12) and isoprenyl 3-acetyloxyoctadecanoate (11) by GC/MS- and GC/IR-analyses, microderivatizations, and synthesis of representative compounds. The absolute configuration of 12 was determined to be R. The...
Tipo: Text
Palavras-chave: Fatty acid esters; Mass spectrometry; Mimicry; Pheromones; Pyrrolizidine alkaloids.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00643/75512/76362.pdf

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

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

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

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: Info:eu-repo/semantics/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: Info:eu-repo/semantics/article
Palavras-chave: Jupiaba; Mimicry; Neotropical; Taxonomy.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100045

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: Info:eu-repo/semantics/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: 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

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: 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

Selective advantage conferred by resemblance of aposematic mimics to venomous model
Provedor de dados: 49
Autores: França,Frederico Gustavo Rodrigues; Braz,Vívian da Silva; Araújo,Alexandre Fernandes Bamberg de.
Abstract Mimicry is an excellent example of how natural selection can act on color, morphology, and behavior of species. Herein we assess predation rates on coral snake mimics in Central Brazil, a region with many mimics but only a single model, to answer the following questions: (i) Do predators avoid attacking coral snake mimics? (ii) Does the degree to which mimics resemble their venomous model affect the frequency of predator attacks? (iii) Do predators attack different body regions in mimics with different color patterns? Our experiment was conducted in the Chapada dos Veadeiros National Park, in the municipality of Alto Paraíso de Goiás, state of Goiás, Brazil. To evaluate predation rates on the different mimic patterns, we made 2,400 clay snake...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mimicry; Coral snake; Central Brazil; Predation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300206

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: Info:eu-repo/semantics/other
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

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: Info:eu-repo/semantics/article
Palavras-chave: Butterfly; Identification; Genitalia; Mimicry.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100013