The Orchid Bee Communities in different phytophysiognomies in the Atlantic Forest: from lowland to montane rainforests

Sociobiology ◽  
2017 ◽  
Vol 64 (2) ◽  
pp. 182 ◽  
Author(s):  
Willian Moura Aguiar ◽  
Renata Lee dos Santos Medeiros ◽  
Candida Maria Lima Aguiar ◽  
Isaura Gabriela Mendonça Borges
Keyword(s):  
Abiotic Factors ◽  
Abundant Species ◽  
Vegetation Types ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Euglossa Cordata ◽  
Different Types ◽  
Ombrophilous Forest ◽  
Bee Communities ◽  
Different Altitudes

To investigate species composition, diversity, richness, and monthly abundance of orchid bees in different types of dense rainforest, placed in different altitudes, the orchid bees were collected for 11 months in three vegetation types: dense montane ombrophilous forest (DMOF), dense submontane ombrophilous forest (DSOF, with two sites points), and dense lowland ombrophilous forest (DLOF). Were collected 1,945 males of 20 species using aromatic traps. The DMOF showed the highest species richness (19), and diversity (H’ = 2.42) , whereas the DSOF_1 showed the highest abundance (775). Euglossa cordata (Linnaeus) was the most abundant species in three areas, and Euglossa ignita Smith was the most abundant species in the DSOF_2 . Abiotic factors were correlated with some community parameters. Our study reveals the importance of preserving different phytophysiognomies within the same biome to conserve orchid bees.

scholarly journals Community of orchid bees (Hymenoptera: Apidae) in transitional vegetation between Cerrado and Atlantic Forest in southeastern Brazil

2013 ◽  
Vol 73 (3) ◽  
pp. 507-513 ◽  
Author(s):  
EP. Pires ◽  
LN. Morgado ◽  
B. Souza ◽  
CF. Carvalho ◽  
A. Nemésio
Keyword(s):  
Atlantic Forest ◽  
Abundant Species ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Eastern Brazil ◽  
Bait Traps

The community of orchid bees (Hymenoptera: Apidae: Euglossina) was studied at an area in the transition between the Cerrado and Atlantic Forest biomes, from March, 2010 to February, 2011 in the Barroso region, state of Minas Gerais, eastern Brazil. Orchid-bee males were collected with bait traps containing three different scents (cineole, eugenol and vanillin) and with entomological nets for collecting bees on flowers. A total of 614 orchid-bee males were collected using aromatic traps, belonging to four genera and 15 species. Twenty-five female specimens belonging to two genera and at least three species were collected on flowers. Eulaema (Apeulaema) nigrita Lepeletier, 1841 was the most abundant species (50% of collected specimens), followed by Euglossa (Euglossa) truncata Rebêlo & Moure, 1996 (28%). Cineole was the most attractive compound (66.5% of males and 13 species), followed by eugenol (16% and 9 species) and vanillin (13.5% and 4 species). Eulaema (Apeulaema) marcii Nemésio, 2009 and Eufriesea auriceps (Friese, 1899) were attracted to all scents, whereas Euglossa species were collected only in cineole and eugenol.

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

Sociobiology ◽  
2019 ◽  
Vol 66 (2) ◽  
pp. 293 ◽  
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.

Small rodent communities (Muridae) in Gabonese savannas: species diversity and biogeographical affinities

Mammalia ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jean-François Mboumba ◽  
Maxime R. Hervé ◽  
Véronique Guyot ◽  
Frederic Ysnel
Keyword(s):  
Ecological Factors ◽  
Abundant Species ◽  
Small Rodent ◽  
Small Rodents ◽  
South West ◽  
New Information ◽  
Different Types ◽  
Mus Minutoides ◽  
Insight Into ◽  
Coastal Basin

Abstract The study contributes to the knowledge of species composition and biogeographical affinities of savannas rodent in Gabon. Unlike small rodents in Gabonese forests, there is little data on the diversity of small rodents in Gabonese savannas. The diversity and distribution of rodent murid communities was studied in four different types of savanna in Gabon: Coastal Basin (South-West), Lopé/Okanda (in the Center), Batéké Plateaux (Southeastern) and Ngougnié/ N’yanga (in the South). A total of 428 individuals representing six species were captured over 11,920 trap nights. Trap success was highly variable (2.2–6.9 %). The most abundant species were Mus minutoides (69%) followed by Lemniscomys striatus (21.5%). Indices of species richness varied from 2 to 5 and diversity (Shannon and Weaver) was low in the four savannas with the highest value at Ngougnié/N’yanga (H′ = 1.2). Species distributions show that Gabonese savanna small rodents conform to four distribution types, with one species known from Zambesian savannas exhibiting austral affinities (Pelomys campanae: occurs in three southern savannas). This new information provides important insight into the biogeography of small rodents at a local and regional level. Moreover, the correspondence analysis highlighted an influence of local ecological factors on population abundance.

scholarly journals Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights

2020 ◽  
Vol 287 (1939) ◽  
pp. 20202127
Author(s):  
S. Hervías-Parejo ◽  
C. Tur ◽  
R. Heleno ◽  
M. Nogales ◽  
S. Timóteo ◽  
...  
Keyword(s):  
Species Traits ◽  
Abundant Species ◽  
Modular Organization ◽  
Vertebrate Species ◽  
Multilayer Network ◽  
Functional Roles ◽  
Different Types ◽  
Seed Dispersers ◽  
Natural Communities

Many vertebrate species act as both plant pollinators and seed-dispersers, thus interconnecting these processes, particularly on islands. Ecological multilayer networks are a powerful tool to explore interdependencies between processes; however, quantifying the links between species engaging in different types of interactions (i.e. inter-layer edges) remains a great challenge. Here, we empirically measured inter-layer edge weights by quantifying the role of individually marked birds as both pollinators and seed-dispersers of Galápagos plant species over an entire year. Although most species (80%) engaged in both functions, we show that only a small proportion of individuals actually linked the two processes, highlighting the need to further consider intra-specific variability in individuals' functional roles. Furthermore, we found a high variation among species in linking both processes, i.e. some species contribute more than others to the modular organization of the multilayer network. Small and abundant species are particularly important for the cohesion of pollinator seed-dispersal networks, demonstrating the interplay between species traits and neutral processes structuring natural communities.

scholarly journals Sampling a biodiversity hotspot: the orchid-bee fauna (Hymenoptera: Apidae) of Tarapoto, northeastern Peru, the richest and most diverse site of the Neotropics

2014 ◽  
Vol 74 (3 suppl 1) ◽  
pp. s33-s44 ◽  
Author(s):  
A Nemésio ◽  
C Rasmussen
Keyword(s):  
Diversity Index ◽  
Species Group ◽  
Biodiversity Hotspot ◽  
Single Site ◽  
Additional Species ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Wiener Diversity Index ◽  
First Time

The orchid-bee fauna of the region of Tarapoto, northeastern Peru, was surveyed using seventeen different scents as baits to attract orchid-bee males. Six hundred and fifty-nine males belonging to 41 species were actively collected with insect nets during 120 hours in late July and early August, 2012. Euglossa dressleriMoure, 1968, Euglossa laurensiBembé, 2008, and Euglossa maculilabrisMoure, 1968, three species belonging to the Euglossa cybelia species-group, are here reported for Peru for the first time. Previous sporadic and unpublished samplings in the area recorded eleven additional species. With 53 species, the region of Tarapoto can be considered the richest single site in the Neotropics for orchid bees. Diversity, estimated with the Shannon-Wiener diversity index (H′ = 3.02), was also the highest ever recorded for orchid bees.

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

2014 ◽  
Vol 74 (3 suppl 1) ◽  
pp. S078-S092 ◽  
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.

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

2013 ◽  
Vol 73 (2) ◽  
pp. 367-374 ◽  
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.

scholarly journals 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

2013 ◽  
Vol 73 (2) ◽  
pp. 437-446 ◽  
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.

scholarly journals Euglossa samperi n. sp., a new species of orchid bee from the Ecuadorian Andes (Hymenoptera: Apidae)

Zootaxa ◽  
2006 ◽  
Vol 1272 (1) ◽  
pp. 61 ◽  
Author(s):  
SANTIAGO RAMÍREZ
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
New Taxon ◽  
Orchid Bees ◽  
Orchid Bee ◽  
The Pacific ◽  
A New Species

A new species of orchid bee in the genus Euglossa is here described. Euglossa samperi n. sp. Ramírez occurs on the Pacific foothills of the Ecuadorian Andes. Based on morphological characters, this new taxon is assigned to the subgenus Glossurella, one of the most species-rich, yet poorly known groups of orchid bees.

scholarly journals Structure of Harvestmen (Arachnida, Opiliones) Communities in Different, Anthropically Disturbed Beech Ecosystems (Western Carpathians, Slovakia)

2017 ◽  
Vol 51 (3) ◽  
pp. 259-270 ◽  
Author(s):  
I. Mihál ◽  
Ľ. Černecká
Keyword(s):  
Abundant Species ◽  
Species Range ◽  
Western Carpathians ◽  
Forest Clearing ◽  
Forestry Management ◽  
Different Types ◽  
Closed Canopy ◽  
The Impact

Abstract The authors evaluate the impact of different types of forestry management, and other anthropic disturbances, on harvestmen (Opiliones) communities in sub-mountain beech stands in the Western Carpathians. Harvestmen were studied in three main localities, consisting of nine partial plots (Žiar nad Hronom - (1) control closed canopy stand; Jalná - (2) control stand, (3) thinning stand, (4) 11-year old forest clearing, and (5) 2-year old forest clearing; Kováčová - (6) control stand, (7) coppice, (8) 10-year old forest clearing, and (9) 3-year old forest clearing). In total, 16 harvestmen species were found, representing 45.7 % of the 35 harvestmen species range known in Slovakia to date. Th e most abundant species, i. e., those with the highest dominance values (D), were Lophopilio palpinalis (D = 22.8%), Trogulus nepaeformis (D = 17.9%), Lacinius ephippiatus (D = 12.2%), Trogulus tricarinatus (D = 11.3%), Oligolophus tridens (D = 10.5%), and Nemastoma lugubre (D = 6.7%). At the partial plot of the 3-year old forest clearing, we found eight harvestmen species and noticed a high number of specimens (5.49) caught in one individual trap, and this was also the highest number among all the nine sites.

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