Results 81 to 90 of about 1,518 (216)

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

Sociobiology, 2018
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 ...
Clycie Aparecida da Silva Machado, Claudineia Pereira Costa, Tiago Maurício Francoy   +2 more
doaj   +1 more source

Phenotypic selection on floral scent: trade-off between attraction and deterrence? [PDF]

, 2018
Flowers emit a large variety of floral signals that play a fundamental role in the communication of plants with their mutualists and antagonists. We investigated phenotypic selection on floral scent and floral display using the rewarding orchid species ...
Gomez, José, Huber, Franz, Schiestl, Florian   +2 more
core  

Structural and ultrastructural characterization of male reproductive tracts and spermatozoa in fig wasps of the genus Pegoscapus (Hymenoptera, Chalcidoidea) [PDF]

, 2008
The three Pegoscapus species present the same internal reproductive tract features comprising testes with a single testicular tubule, seminal vesicles, vasa deferentia, accessory glands and an ejaculatory duct.
Báo, Sônia Nair, Fiorillo, Bruno Silva, Lino-Neto, José   +2 more
core   +1 more source

Genetic structure analysis of Eufriesea violacea (Hymenoptera, Apidae) populations from southern Brazilian Atlantic rainforest remnants

Genetics and Molecular Biology, 2005
Random amplified polymorphic DNA (RAPD) markers were used to analyze the genetic structure of Eufriesea violacea populations in three fragments (85.47, 832.58 and 2800 ha) of Atlantic rainforest located in the north of the Brazilian state of Paraná.
Silvia H. Sofia, Francine M. de Paula, Aline M. dos Santos, Fernanda S. Almeida, Leda M.K. Sodré   +4 more
doaj   +1 more source

Genetic structure of Bertholletia excelsa populations from the Amazon at different spatial scales. [PDF]

, 2017
Population genetic structure and genetic diversity levels are important issues to understand population dynamics and to guide forest management plans.
AZEVEDO, V. C. R., MARTINS, K., SOLFERINI, V. N., SUJII, P. S., WADT, L. H. de O.   +4 more
core   +1 more source

More than symbioses : orchid ecology ; with examples from the Sydney Region [PDF]

, 2013
The Orchidaceae are one of the largest and most diverse families of flowering plants. Orchids grow as terrestrial, lithophytic, epiphytic or climbing herbs but most orchids native to the Sydney Region can be placed in one of two categories.
Entwisle, Timothy J., Perkins, Andrew J., Weston, Peter H.   +2 more
core  

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

Brazilian Journal of Biology
The orchid-bee fauna of the region of Tarapoto, northeastern Peru, was surveyed using seventeen different scents as baits to attract orchid-bee males.
A Nemésio, C Rasmussen
doaj   +1 more source

Orchid bees (Hymenoptera: Apidae) in the coastal forests of southern Brazil: diversity, efficiency of sampling methods and comparison with other Atlantic forest surveys

Papéis Avulsos de Zoologia, 2011
Surveys of orchid bees at the Brazilian Atlantic forest have been restricted to a few regions, making difficult to understand latitudinal patterns of distribution and diversity of these bees.
Vanessa C. Mattozo, Luiz R.R. Faria, Gabriel A.R. Melo   +2 more
doaj   +1 more source

The orchid-bee fauna (Hymenoptera: Apidae) of ‘Reserva Biológica de Una’, a hotspot in the Atlantic Forest of southern Bahia, eastern Brazil

Brazilian Journal of Biology
The orchid-bee fauna of ‘Reserva Biológica de Una’ (REBIO Una), one of the largest Atlantic Forest remnants in southern Bahia, eastern Brazil, was surveyed for the first time. Baits with sixteen different scents were used to attract males of orchid bees.
A Nemésio
doaj   +1 more source

Monitoring Flower Visitation Networks and Interactions between Pairs of Bumble Bees in a Large Outdoor Flight Cage [PDF]

, 2016
This research was supported by a combined grant from the Wellcome Trust, the Biotechnology and Biological Sciences Research Council, and the Engineering and Physical Sciences Research Council (BB/F52765X/1). While writing, ML was supported by the IDEX of
A Dornhaus, A Kapustjansky, B Heinrich, BD Worden, D Goulson, DH Janzen, DH Morse, DW Inouye, DW Roubik, DW Stephens, E Leadbeater, E Leadbeater, EL Charnov, EM Lichtenberg, FB Gill, GH Pyke, GH Pyke, H Dreisig, H Muller, HP Possingham, JA Stamps, JC Nieh, JC Stout, JD Thomson, JD Thomson, JD Thomson, Jeff Ollerton, K Ohashi, K Ohashi, K Ohashi, K Ohashi, L Comba, L Harder, LA Giraldeau, Lars Chittka, LE Gilbert, LG Kawaguchi, LJ Morrell, M Bergman, M Giurfa, M Lihoreau, M Lihoreau, M Lihoreau, M Lihoreau, M Lihoreau, Mathieu Lihoreau, MJ Duchateau, NB Davies, NE Raine, NE Raine, NE Raine, Nigel E. Raine, NJ Balfour, NL Charlton, P Opler, RV Cartar, S Dray, SD Fretwell, SJ Simpson, TO Lemke, TT Makino, WN Venables   +61 more
core   +5 more sources