Choerophryne nigrescens is a species of frogs in the family Microhylidae. It is endemic to the Papua Province, Indonesia, and is known from its type locality and two other localities on the island of Yapen (Papua Province), off the north-western coast of New Guinea, as well as from one record from Foja Mountains in New Guinea. Common name blackish choerophryne has been suggested for it.
An insectivore is a carnivorous plant or animal that eats insects. An alternative term is entomophage, which also refers to the human practice of e...
Myrmecophagy is a feeding behavior defined by the consumption of termites or ants, particularly as pertaining to those animal species whose diets a...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Jumping (saltation) can be distinguished from running, galloping, and other gaits where the entire body is temporarily airborne by the relatively l...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThree adult males in the type series measure 17–18 mm (0.67–0.71 in) in snout–urostyle length, making it a relatively large Choerophryne ; females are unknown. The snout is moderately long (20–21% of the body length). The eyes are moderately-sized. The tympanum is small. All fingers and toes bear large and conspicuous discs. The dorsum is reddish brown, with blackish blotches. There are also blackish bands in the limbs. There are small whitish spots allover. The ventrum is white with dense, blackish reticulations.
The male advertisement call is a series of distinctly pulsed notes, but in tight succession so as to give an impression of a single, modulated note. The dominant frequency is at 2.9 kHz.
At Yapen, Choerophryne nigrescens inhabits primary and secondary rain forest at elevations of 5–850 m (16–2,789 ft) above sea level. At sites where Choerophryne nigrescens co-occurs with Choerophryne arndtorum, it is much less abundant than the latter species. Males call from hollows and crevices of large, rotting logs on the ground, sometimes higher from the ground (to 2.5 m) on plant stems. One specimen was found on top of a pile of logs.