First records of melanistic Euglossa (Hymenoptera: Apidae): evolutionary implications

Martins, Charles Ferreira

doi:10.1590/s1519-69842013000300028

Cited by 3 publications

(2 citation statements)

References 8 publications

(6 reference statements)

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“…For Andrena albihirta , Landham (1974) found a melanism rate of up to 36 percent in twelve populations in the Rocky Mountains and suggested that black colouration functions to lengthen the active period of the species by absorption of solar heat even in reduced sunlight. Nemésio and Martins (2013) found specimens of the Neotropical orchid bee Euglossa carolina in which the metallic integument is replaced by black colouration, indicating a reversion in the evolution of the colouration of the integument.…”

Section: Conclusion and Discussionmentioning

confidence: 98%

Taxonomic revision proves Trachusa pubescens (Morawitz, 1872) sensu lato to be a complex of allopatric and sympatric species in South-Eastern Europe and Western Asia (Hymenoptera, Apoidea, Anthidiini)

Kasparek¹

2018

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Trachusa pubescens (Morawitz, 1872) s. l. has a distribution extending from south-eastern Europe over Anatolia and the Caucasus to Iran and Turkmenistan, and was formerly regarded as a species with high intraspecific variation. By means of an examination of 208 specimens from all parts of the distribution area, covering structural features of the head (mandibles, clypeus), the apical terga and the genitalia, the colouration pattern as well as a morphometric analysis of 26 body measurements with multivariate statistical methods (Principal Component Analysis, Discriminant Analysis), it was possible to assign the material to five species of which two are new to science (Trachusa balcanica sp. n. and T. hakkariensis sp. n.). Two taxa which had previously been described as “variations” or subspecies are elevated to species rank: T. verhoeffi (Mavromoustakis, 1955), stat. n. and T. maxima (Friese, 1931), stat. n. Additionally, some populations can be distinguished by their colouration pattern or by subtle differences in size or body shape, but these features are apparently of no taxonomic significance at the species level. Trachusa balcanica sp. n. and T. verhoeffi have distribution areas which do not overlap with any of the other members of the species group and can thus be characterised as allospecies. By contrast, the distribution areas of the other three species, T. pubescens, T. maxima and T. hakkariensis sp. n., overlap to a certain extent and they co-exist at least to some degree in sympatry. While they have been found in the same region, they have so far never been found together at exactly the same location and it is suggested that species divergence occurred in parallel with ecological differentiation. Niche partitioning such as flower preferences is a mechanism which may be invoked to explain this. Some specimens with intermediate characters were found, particularly in contact zones, and it is thought that some hybridisation may occur. A partly melanistic individual of T. balcanica sp. n. was found, which is probably the first described melanistic individual in the tribe Anthidiini.

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Section: Conclusion and Discussionmentioning

confidence: 98%

Taxonomic revision proves Trachusa pubescens (Morawitz, 1872) sensu lato to be a complex of allopatric and sympatric species in South-Eastern Europe and Western Asia (Hymenoptera, Apoidea, Anthidiini)

Kasparek¹

2018

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“…O autor sugere que, ao coletar essas substâncias, os machos utilizam-nas para atrair, primeiramente, outros machos, formando agregados e, posteriormente, as fêmeas são atraídas. Dessa forma, por meio da utilização de fragrâncias como iscas artificiais para atrair os machos de Euglossina é que foi possível o avanço nos estudos de levantamento faunístico dessas abelhas (OLIVEIRA;CAMPOS, 1996;OLIVEIRA, 2000;REBÊLO;CABRAL, 1997;ROUBIK;HANSON, 2004) que, por muito tempo, foram pouco estudadas (FARIAS et al, 2007).…”

Section: Introductionunclassified

Fauna de Euglossina (Hymenoptera: Apidae) de um fragmento de Mata Atlântica do Alto Oeste Potiguar, Rio Grande do Norte

Guimarães-Brasil¹,

Brasil

Mahlmann³

et al. 2017

Revista Verde

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Resumo: As abelhas da subtribo Euglossina encontram-se amplamente distribuídas na região Neotropical, sendo mais diversificadas nas florestas úmidas. Objetivou-se realizar um levantamento das espécies desta subtribo em um fragmento de Mata Atlântica, um remanescente de brejo de altitude, localizado em uma região do Semiárido Brasileiro. O estudo foi conduzido no município de Portalegre, Rio Grande do Norte, entre os meses de fevereiro e agosto de 2015. A coleta de dados foi realizada mensalmente entre às 08h00 e 16h00, com a utilização de armadilhas contendo as essências eucaliptol, eugenol e vanilina. Foram coletados um total de 123 machos, distribuídos em quatro gêneros e seis espécies, sendo elas: Eufriesea danielis (43,09%), Euglossa melanotricha (25,20%), Euglossa cordata (15,45%), Eulaema nigrita (13,82%), Euglossa fimbriata (1,63%) e Exaerete dentata (0,81%). O intervalo entre 08h00 e 10h00 foi o de maior atividade, com 54,4% do total dos machos coletados. A comunidade de abelhas da região estudada apresentou maior preferência pelo eucaliptol, atraindo cinco espécies e 67 indivíduos (53,6%). A espécie Eufriesea danielis é reportada pela primeira vez para a região Nordeste do Brasil, enquanto que Exaerete dentata tem seu primeiro registro para o estado do Rio Grande do Norte. Palavras-chave:Iscas-odores; Abelhas das orquídeas; Abundância; Diversidade. Abstract:The bees of the Euglossina subtribe are widely distributed in the Neotropical region, being more diversified in the humid forests. The purpose of this research was to carry out a survey of the species of this subtribe in a fragment of Atlantic Forest, a remnant of altitude swamp, located in a region of the Brazilian Semiarid. The study was conducted in the municipality of Portalegre, Rio Grande do Norte, between February and August 2015. Data collection was performed monthly between 08h00 and 16h00, using traps containing the eucalyptol, eugenol and vanillin essences. A total of 123 males, distributed in four genera and six species were collected, which are: Eufriesea danielis (43.09%), Euglossa melanotricha (25.20%), Euglossa cordata (15.45%), Eulaema nigrita (13.82%), Euglossa fimbriata (1.63%) and Exaerete dentata (0.81%). The interval between 8:00 a.m. and 10:00 was the most active, with 54.4% of the total collected males. The community of the bees studied region showed greater preference for eucalyptol, attracting five species and 67 individuals (53.6%). The species Eufriesea danielis is reported here the first time for the Northeast region of Brazil, while Exaerete dentata has its first record for the state of Rio Grande do Norte.

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Climate-associated shifts in color and body size for a tropical bee pollinator

Suni

Cruz

2021

Apidologie

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Habitat degradation and climatic changes are causing declines in bee populations, which in turn threaten wild plant reproductive success and the global food supply. We examined spatial and temporal variation in traits that may influence the way bees respond to environmental changes. For a color polymorphic species, we characterized proportions of three morphs and measured body size of individuals within sites of varying elevation over an 11-year sampling period. We found climate-associated variation in both color and body size, as well as temporal shifts in these traits that were associated with climatic conditions of sites. The proportion of bees that were red-orange increased relative to two other color morphs. Body size increased over time, and it increased more at drier sites. These results suggest that precipitation may be an important driver of trait shifts in tropical bees and motivate investigations of natural selection on color and body size due to differential climatic tolerances.

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First records of melanistic Euglossa (Hymenoptera: Apidae): evolutionary implications

Cited by 3 publications

References 8 publications

Taxonomic revision proves Trachusa pubescens (Morawitz, 1872) sensu lato to be a complex of allopatric and sympatric species in South-Eastern Europe and Western Asia (Hymenoptera, Apoidea, Anthidiini)

Taxonomic revision proves Trachusa pubescens (Morawitz, 1872) sensu lato to be a complex of allopatric and sympatric species in South-Eastern Europe and Western Asia (Hymenoptera, Apoidea, Anthidiini)

Fauna de Euglossina (Hymenoptera: Apidae) de um fragmento de Mata Atlântica do Alto Oeste Potiguar, Rio Grande do Norte

Climate-associated shifts in color and body size for a tropical bee pollinator

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