Different Physiognomies and the Structure of Euglossini bee (Hymenoptera: Apidae) Communities

Our aim was to evaluate the occurrence of orchid bees in remnants of the Atlantic Forest. We sampled specimens from five regions of Southeast Brazil, covering three different physiognomies of the Atlantic Forest (mixed Araucaria forests with high altitude fields, Atlantic Semi-deciduous Forest and Atlantic Rain Forest). The distances between the sampling sites ranged from 24 to 746 km. Male orchid bees attracted by fragrances were actively sampled monthly during one year using entomological nets and aromatic traps. A total of 1,482 bees were captured, including four genera and at least 31 species. We observed differences in the abundance and richness of species sampled among sites. Climatic variables, mostly relative humidity, explained twice more of the observed differences in the Euglossini communities than simple spatial variation. Our study found differences in the composition of euglossine bee communities as well as in their patterns of abundance and dominance among different vegetation formations. However, the level of pairwise similarity among the Euglossini communities sampled, although highly variable, was not related to climatic factors or geographical distances between the sampling sites. The greatest dissimilarities in the composition of the orchid bee communities were observed between sites around 400 km from each other rather than among sites that were further apart. A possible explanation is that the sampled areas that were 400 km from each other were also highly dissimilar regarding climate, especially altitude.

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Euglossine bee communities in small forest fragments of the Atlantic Forest, Rio de Janeiro state, southeastern Brazil (Hymenoptera, Apidae)

Revista Brasileira de Entomologia ◽

10.1590/s0085-56262012005000018 ◽

2012 ◽

Vol 56 (2) ◽

pp. 210-219 ◽

Cited By ~ 26

Author(s):

Willian Moura de Aguiar ◽

Maria Cristina Gaglianone

Keyword(s):

Atlantic Forest ◽

Rio De Janeiro ◽

Southeastern Brazil ◽

Forest Fragments ◽

Euglossine Bee ◽

Bee Communities ◽

Janeiro State ◽

Small Forest

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Geographic note on species of the genus Upa Kimsey, 1991 (Hymenoptera: Tiphiidae, Thynninae) in the Atlantic Forest, Brazil

Check List ◽

10.15560/9.5.1057 ◽

2013 ◽

Vol 9 (5) ◽

pp. 1057 ◽

Cited By ~ 1

Author(s):

Cíntia Eleonora Lopes Justino ◽

Eduardo Fernando dos Santos ◽

Fernando Barbosa Noll

Keyword(s):

Atlantic Forest ◽

Rain Forest ◽

New Records ◽

Deciduous Forest ◽

Atlantic Rain Forest ◽

Malaise Traps

Upa Kimsey is a poorly known genus of Tiphiidae with seven species. This genus has records in forest areas and in this paper we present new records to four species. All specimens were collected by malaise traps in four areas of Atlantic Rain Forest and three of Atlantic Semi-deciduous forest, mainly from high and mid-elevations. The new records indicate that species of Upa are not as rare as others genera of Tiphiidae, which are virtually unknown in many Neotropical regions.

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Continuous Micro-Environments Associated Orchid Bees Benefit from an Atlantic Forest Remnant, Paraná State, Brazil

Sociobiology ◽

10.13102/sociobiology.v66i2.3443 ◽

2019 ◽

Vol 66 (2) ◽

pp. 293 ◽

Cited By ~ 1

Author(s):

Ana Isabel Sobreiro ◽

Lucas Lopes da Silveira Peres ◽

Samuel Boff ◽

Jessica Amaral Henrique ◽

Valter Vieira Alves Junior

Keyword(s):

Atlantic Forest ◽

Forest Regeneration ◽

Environmental Changes ◽

Secondary Forest ◽

Forest Fragments ◽

Orchid Bees ◽

Orchid Bee ◽

Forest Remnant ◽

Forest Remnants ◽

Bee Communities

The fragmentation and habitat loss are the main causes of pollinators decline worldwide, however very little is known about the composition and distribution of neotropical pollinators along continuous micro-environments. To fill this gap, we carried out samplings of Euglossini bees in a continuous area of forest with micro-environments of primary (remnant) and secondary (regeneration) forest of Atlantic Forest. We evaluated the differences in the composition and uniformity of orchid bees in different micro-environments, in order to characterize the responses of the local environmental changes in the attraction of bees to chemical traps. Our results indicated that the composition and uniformity were similar between the two forest fragments studied here, although there are greater abundance of some species by micro-environments. We conclude that the characteristics of the sites in a continuous environment with primary and secondary forest do not seem to have an effect on the composition of the Euglossini fauna, and that the chemical substances are complementary in the attractiveness of the orchid bee males. Thus, our findings suggest that micro-environments in a continuous matrix near forest remnants can help to promote the reintegration of the orchid bee communities and contribute to the conservation of areas in process of forest regeneration.

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Is the “Centro de Endemismo Pernambuco” a biodiversity hotspot for orchid bees?

Brazilian Journal of Biology ◽

10.1590/1519-6984.26412 ◽

2014 ◽

Vol 74 (3 suppl 1) ◽

pp. S078-S092 ◽

Cited By ~ 4

Author(s):

A Nemésio ◽

JE Santos Junior

Keyword(s):

Atlantic Forest ◽

Conservation Status ◽

Biodiversity Hotspot ◽

Northeastern Brazil ◽

Orchid Bees ◽

Orchid Bee ◽

Forest Remnants ◽

First Time ◽

Forest Preserve

The orchid-bee faunas (Hymenoptera: Apidae: Euglossina) of the three largest forest remnants in the “Centro de Endemismo Pernambuco”, northeastern Brazil, namely Estação Ecológica de Murici (ESEC Murici), RPPN Frei Caneca, and a forest preserve belonging to Usina Serra Grande, in the states of Alagoas and Pernambuco, were surveyed using seventeen different scents as baits to attract orchid-bee males. Eight sites were established in the three preserves, where samplings were carried out using two protocols: insect netting and bait trapping. We collected 3,479 orchid-bee males belonging to 29 species during 160 hours in early October, 2012. Seven species were collected in the “Centro de Endemismo Pernambuco” for the first time. Richness proved to be one of the highest of the entire Atlantic Forest domain, and diversity in some sites, especially at ESEC Murici, revealed to be one of the highest in the Neotropics. Eulaema felipei Nemésio, 2010, a species previously recorded only at ESEC Murici, was found in no other preserve in the region and its conservation status is discussed.

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Are orchid bees at risk? First comparative survey suggests declining populations of forest-dependent species

Brazilian Journal of Biology ◽

10.1590/s1519-69842013000200017 ◽

2013 ◽

Vol 73 (2) ◽

pp. 367-374 ◽

Cited By ~ 26

Author(s):

A Nemésio

Keyword(s):

Atlantic Forest ◽

Anthropogenic Disturbances ◽

The Other ◽

Orchid Bees ◽

Orchid Bee ◽

Disturbed Areas ◽

Eastern Brazil ◽

Forest Remnants ◽

Declining Populations ◽

Comparative Survey

The two largest Atlantic Forest remnants in the state of Espírito Santo, eastern Brazil, namely ‘Reserva Biológica de Sooretama’ (REBIO Sooretama) and ‘Reserva Natural Vale’ (RNV), were surveyed for their orchid-bee faunas. Seventeen scent baits were used to attract orchid-bee males. Three-thousand, two hundred and twenty-five males belonging to 24 species were actively collected with insect nets during 100 hours in March, April and December, 2009. In comparison with a previous study in the same area twelve years before, it is evident that the abundance of all forest-dependent orchid bees analysed declined around 50%, and it was statistically significant (P = 0.022) for Euglossa marianae Nemésio, 2011, the most sensitive to anthropogenic disturbances of all Atlantic Forest orchid bees. On the other hand, the abundance of populations of species tolerant to open or disturbed areas rose. Possible explanations are discussed.

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The orchid-bee faunas (Hymenoptera: Apidae) of 'Parque Nacional do Monte Pascoal', 'Parque Nacional do Descobrimento' and three other Atlantic Forest remnants in southern Bahia, eastern Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842013000200028 ◽

2013 ◽

Vol 73 (2) ◽

pp. 437-446 ◽

Cited By ~ 7

Author(s):

A Nemésio

Keyword(s):

Atlantic Forest ◽

Amazon Basin ◽

First Record ◽

The State ◽

Orchid Bees ◽

Orchid Bee ◽

Eastern Brazil ◽

Forest Remnants ◽

Southern Bahia

The orchid-bee faunas of ‘Parque Nacional do Monte Pascoal’, ‘Parque Nacional do Descobrimento’ and three other Atlantic Forest remnants ranging from 1 to 300 ha in southern Bahia, eastern Brazil, were surveyed. Baits with seventeen different scents were used to attract orchid-bee males. Four thousand seven hundred and sixty-four males belonging to 36 species were actively collected with insect nets during 300 hours from November, 2008 to November, 2009. Richness and diversity of orchid bees found in this study are the highest ever recorded in the Atlantic Forest domain. Eufriesea dentilabris (Mocsáry, 1897) and Eufriesea violacea (Blanchard, 1840) were collected at the ‘Parque Nacional do Monte Pascoal’, the first record of these species for the state of Bahia and the northernmost record for both species. Females Exaerete dentata (Linnaeus, 1758) were also collected at ‘Parque Nacional do Monte Pascoal’ and old records of Eufriesea aeneiventris (Mocsáry, 1896) in this area makes this site the richest and most diverse concerning its orchid-bee fauna in the entire Atlantic Forest and similar to areas in the Amazon Basin.

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Molecular edge effects in the Endangered golden-brown mouse lemur Microcebus ravelobensis

Oryx ◽

10.1017/s0030605318000029 ◽

2018 ◽

Vol 53 (4) ◽

pp. 716-726 ◽

Cited By ~ 1

Author(s):

U. Radespiel ◽

J. Schulte ◽

R. J. Burke ◽

S. M. Lehman

Keyword(s):

Edge Effects ◽

Deciduous Forest ◽

Mitochondrial Control Region ◽

Mouse Lemur ◽

Continuous Forest ◽

Ecological Changes ◽

Close Proximity ◽

Geographical Distances ◽

Dry Deciduous Forest ◽

Underlying Mechanisms

AbstractHabitat fragmentation creates habitat edges, and ecological edge effects can cause major changes in the ecology and distribution of many taxa. However, these ecological changes may in turn influence animal movements and lead to molecular edge effects and edge-related genetic structure, matters that are largely unexplored. This study aims to infer molecular edge effects and to test three possible underlying mechanisms in the Endangered golden-brown mouse lemur Microcebus ravelobensis, a nocturnal species in the dry deciduous forest of the Ankarafantsika National Park in north-western Madagascar. Mouse lemurs were sampled in one edge and two interior habitats in close proximity to each other (500–1,400 m) in a continuous forest. A total of 41 mouse lemur samples were genotyped with seven nuclear microsatellites, and a fragment of the mitochondrial control region was sequenced for all samples. The overall genetic diversity (allelic richness, heterozygosity, haplotype richness, nucleotide diversity) was lower in the edge habitat compared to the two interior sites and all subpopulations showed signals of relatively low genetic exchange and significant genetic differentiation between them despite the short geographical distances, supporting the local preference model. These findings can be interpreted as preliminary signals of a molecular edge effect and suggest the potential for local adaptation. They are highly relevant for the conservation of fragmented populations, because a further subdivision of already small populations may increase their vulnerability to stochastic demographic changes and collapse.

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Diversity of Convolvulaceae from Meruoca Massif, Ceará, Brazil

Rodriguésia ◽

10.1590/2175-7860202172110 ◽

2021 ◽

Vol 72 ◽

Author(s):

Diego Santos ◽

Marlene Feliciano Figueiredo ◽

Maria Teresa Buril ◽

Elnatan Bezerra de Souza

Keyword(s):

Atlantic Forest ◽

Geographic Distribution ◽

Morphological Analysis ◽

Deciduous Forest ◽

The State ◽

Identification Key ◽

Dry Forest ◽

Diagnostic Characters ◽

Taxonomic Treatment ◽

Northwest Region

Abstract We present the taxonomic treatment of Convolvulaceae for the Meruoca Massif, located in the Northwest region of the Ceará state, where there are remnants of Tropical Pluvial Sub-deciduous Forest (Dry Forest) and Tropical Pluvial-Nebular Rainforest (Wet Forest). The present study was based on the morphological analysis of specimens collected in the field and from the collections EAC, HUEFS, HUVA, PEUFR, and SPF. We recorded 24 species distributed in four genera: Ipomoea (18 species), Jacquemontia (three species), Distimake (two species), and Camonea (one species). We report the first records of I. cearensis for Atlantic Forest and I. aristolochiifolia to the state of Ceará. The taxonomic treatment includes identification key, morphological descriptions, geographic distribution, taxonomic and ecological comments, the period of flowering and fruiting, and photos and illustrations of the diagnostic characters.

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Orchid bees (Hymenoptera: Apidae) of the Brazilian Atlantic Forest

Zootaxa ◽

10.11646/zootaxa.2041.1.1 ◽

2009 ◽

Vol 2041 (1) ◽

pp. 1-242 ◽

Cited By ~ 71

Author(s):

ANDRÉ NEMÉSIO

Keyword(s):

New York ◽

Natural History ◽

Atlantic Forest ◽

Geographic Distribution ◽

Valid Species ◽

Type Specimens ◽

Orchid Bees ◽

Domain Identification ◽

Orchid Bee ◽

The Status

A detailed synopsis of all the orchid-bee species known to occur in the Atlantic Forest Domain, eastern Brazil, is provided, including synonymy, complete type data, diagnoses, relevant data on biology and geographic distribution (with detailed localities of known occurrence of each species), colorful illustrations of onomatophores (“name-bearing type specimens”), and a list with the main references dealing with each species. Fifty-four species are recognized to occur in the Atlantic Forest Domain. Identification keys are presented for each genus and their species occurring in the Atlantic Forest. Euglossa carinilabris Dressler, 1982, Euglossa cyanaspis Moure, 1968, Eulaema (Eulaema) niveofasciata (Friese, 1899) and Exaerete lepeletieri Oliveira & Nemésio, 2003, considered junior synonyms of other species by different authors, are reinstated as valid species. A full discussion on the status of the four orchid-bee species described by Linnaeus is presented, as well as colorful illustrations of the four onomatophores. The two existing onomatophores of orchid bee species described by Fabricius are also illustrated and his Apis cingulata has been shown to be the species recently described as Eulaema (Apeulaema) pseudocingulata Oliveira, 2006, which, thus, becomes a junior synonym (syn. n.). Euglossa aratingae sp. n., Euglossa carolina sp. n., Euglossa nanomelanotricha sp. n., Euglossa roderici sp. n., Euglossa roubiki sp. n., Eulaema (Eulaema) atleticana sp. n., and Eulaema (Apeulaema) marcii sp. n. are described as new species. Neotypes are designated for Eufriesea violacea (Blanchard, 1840) and Exaerete frontalis (Guérin-Méneville, 1844). Some corrections concerning the repository institutions of some onomatophores of orchid bees were also made: Eufriesea auriceps (Friese, 1899) holotype has been listed as belonging to the US National Museum (Washington) or to the American Museum of Natural History (New York) but, in fact, it belongs to the Zoologisches Museum der Humboldt Universität (Berlin); the lectotype of Eufriesea aeneiventris (Mocsáry, 1896) has been listed as belonging to the Istituto e Museo di Zoologia, Universita di Torino (Turin), but it actually belongs to the Hungarian Museum of Natural History (Budapest). Publication dates of both Exaerete frontalis Guérin-Méneville and Exaerete smaragdina Guérin-Méneville have been listed as 1845 but, in fact, the actual date is 1844. Based on the known geographic distribution and abundance of each species in orchid-bee inventories, IUCN criteria were applied and three species are recommended to be included in future lists of threatened species in one of the IUCN categories of risk: Eufriesea brasilianorum (Friese, 1899) and Euglossa cognata Moure, 1970 are suggested to be listed as “vulnerable”, and Euglossa cyanocholora Moure, 1996 is suggested to be listed as “endangered”. A fully annotated check list of all known orchid bee species is also presented as an Appendix.

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