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Handling sticky resin by stingless bees (Hymenoptera, Apidae) Rev. Bras. entomol.
Gastauer,Markus; Campos,Lucio A. O.; Wittmann,Dieter.
For their nest defense, stingless bees (Meliponini) collect plant resins which they stick on intruders like ants or cleptobiotic robber bees causing their immobilization. The aim of this article is to identify all parts of stingless bee workers contacting these sticky resins. Of special interest are those body parts with anti-adhesive properties to resin, where it can be removed without residues. For that, extensive behavioral observations during foraging flight, handling and application of the resin have been carried out. When handling the resin, all tarsi touch the resin while walking above it. For transportation from plants to the nest during foraging flight, the resin is packed to the corbicula via tarsi and basitarsi of front and middle legs. Once...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adhesion; Meliponini; Nest defense; Surface properties.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000200014
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Nest stolen: the first observation of nest predation by an invasive exotic marmoset (Callithrix penicillata) in an agricultural mosaic Biota Neotropica
Alexandrino,Eduardo Roberto; Luz,Daniela Tomasio Apolinario da; Maggiorini,Erica Vanessa; Ferraz,Katia Maria Paschoaletto Micchi de Barros.
Invasive exotic species can negatively impact local biodiversity. We present here a report of a nest predation of an endemic bird species, variable oriole (Icterus pyrrhopterus) by the introduced black-tufted marmoset (Callithrix penicillata) in an agricultural landscape highly disturbed by human activities. Two nestlings were predated, by adults of the introduced marmoset during two alternate days. Antipredator behavior and vocal mimicry were observed in variable oriole, while copulation was observed in black-tufted marmoset during the predation. The use of mobbing against predators by I. pyrrhopterus was observed and it is described here by the first time. The potential impact of the introduced marmosets to local biodiversity is discussed.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Invasive alien species; Birds; Mobbing behaviour; Nest predation; Nest defense.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200021
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