| masking interference and the evolution of the acoustic communication system in the amazonian dendrobatid frog allobates femoralis. | the efficacy of communication relies on detection of species-specific signals against the background noise. features affecting signal detection are thus expected to evolve under selective pressures represented by masking noise. spectral partitioning between the auditory signals of co-occurring species has been interpreted as the outcome of the selective effects of masking interference. however, masking interference depends not only on signal's frequency but on receiver's range of frequency sensi ... | 2006 | 17089972 |
| map-like navigation from distances exceeding routine movements in the three-striped poison frog (ameerega trivittata). | most animals move in dense habitats where distant landmarks are limited, but how they find their way around remains poorly understood. poison frogs inhabit the rainforest understory where they shuttle tadpoles from small territories to widespread pools. recent studies revealed their excellent spatial memory and the ability to home back from several hundred meters. it remains unclear if this homing ability is restricted to the areas that had been previously explored or if it allows the frogs to n ... | 2017 | 29217629 |
| genetic divergence and speciation in lowland and montane peruvian poison frogs. | amazonia is famous for high biodiversity, and the highlands of the transition zone between the andes and the lowlands of the amazon basin show particularly high species diversity. hypotheses proposed to explain the high levels of diversity in the highlands include repeated parapatric speciation across ecological gradients spanning the transition zone, repeated allopatric speciation across geographic barriers between the highlands and lowlands, divergence across geographic barriers within the tra ... | 2006 | 16815043 |