Care that parents provide to offspring often comes at the cost of other reproductive
opportunities, generating parent–offspring conflict and sibling rivalry whenever there are …

Cannibalism is common in animals, and its expression is shaped by a suite of costs and
benefits beyond the caloric content of meals made of conspecifics. We report here on …

Offspring quantity and quality are components of parental fitness that cannot be maximized
simultaneously. When the benefits of investing in offspring quality decline, parents are …

Aggression between nurserymates is common in animals and often hypothesized to result
from proximate resource limitation. In numerous terrestrial frogs, larvae develop in …

Parents can benefit from allocating limited resources nonrandomly among offspring, and
offspring solicitation (ie begging) is often hypothesized to evolve because it contains …

Many prey species are chemically defended and have conspicuous appearance to deter
predators (ie aposematism). Such warning signals work because predators pay attention to …

Predation risk can drive life-history evolution in prey, with high adult mortality favouring the
prioritization of current over future reproduction. Populations that evolve or adopt different or …

En el río Siraín, distrito de Kankintú, comarca Ngäbe Buglé se determinó la distribución
espacial de los anfibios utilizando tecnologías SIG. Se encontraron 11 especies …

ABSTRACT Strawberry Poison Frogs (Oophaga pumilio) are common members of leaf litter
lowland communities in Central America and exhibit several color morphs throughout their …

Geographic variation of color pattern in the South American poison frogs (Dendrobatidae) is
an intriguing evolutionary phenomenon. These chemically defended anurans use bright …