Buscar
Mostrando ítems 1-10 de 57
Firefly femmes fatales: a case study in the semiotics of deception
(2010)
Mimicry and deception are two important issues in studies about animal communication. The reliability of animal signs and the problem of the benefits of deceiving in sign exchanges are interesting topics in the evolution ...
Sexual monomorphism in the advertisement calls of a Neotropical frog
(Oxford University Press, 2018)
In anurans, production of advertisement calls in sexual contexts is predominantly an attribute of males. Female calls occur in a small proportion of species, and these signals typically differ from those of males. The ...
Recent advances on evolution of pollination systems and reproductive biology of vanilloideae (orchidaceae)
(Lankester Botanical Garden, University of Costa Rica, 2016)
Worthless and nutritive nuptial 1 gifts: mating duration, sperm stored and potential female decisions in spiders
(Public Library Of Science, 2015-06)
In nuptial gift-giving species females sometimes select their potential mates based on the presence and size of the gift. But in some species, such as the Neotropical polyandrous spider Paratrechalea ornate male gifts vary ...
Pseudocopulatory pollination in Lepanthes (Orchidaceae: Pleurothallidinae) by fungus gnats
(2005-04)
Background and Aims: Lepanthes is one of the largest angiosperm genera (>800 species). Their non-rewarding, tiny and colourful flowers are structurally complex. Their pollination mechanism has hitherto remained unknown, ...
Variable selection patterns on the labellum shape of Geoblasta pennicillata, a sexually deceptive orchid
(Wiley Blackwell Publishing, Inc, 2009-09-07)
By mimicking shape and female mating pheromones, flowers of sexually deceptive orchids attract sexually excited males which pollinate them while trying to copulate. Although many studies have demonstrated the crucial ...
Females of a gift-giving spider do not trade sex for food gifts: a consequence of male deception?
(Biomed Central, 2017-05)
Polyandry is commonly maintained by direct benefits in gift-giving species, so females may remate as an adaptive foraging strategy. However, the assumption of a direct benefit fades in mating systems where male gift-giving ...
Spatial and temporal variation in volatile composition suggests olfactory division of labor within the trap flowers of Aristolochia gigantea
(Elsevier Gmbh, 2017-07)
The olfactory components of floral advertisement can be complex, often showing dynamic patterns of emission and chemical composition that may reflect diverse functions related to pollination. In this study we investigated ...