Topic
Tomato frog
About: Tomato frog is a research topic. Over the lifetime, 4 publications have been published within this topic receiving 87 citations. The topic is also known as: Tomato frog.
Papers
TL;DR: Longevity was positively correlated to body size and weight within both sexes and populations, and sexual dimorphism is significantly different between all three populations: females are larger and heavier than males, with males also being distinguishable by a more yellowish throat.
Abstract: Age profile and body size were studied in three populations of the rare and understudied tomato frog, Dyscophus antongilii, from NE Madagascar. For each individual, a phalanx was clipped and the bone used for skeletochronology. Sexual dimorphism is significantly different between all three populations: females are larger and heavier than males, with males also being distinguishable by a more yellowish throat. Age structure analysis was possible on two populations (Antara, Lampirano). The age within the two populations ranged between 3 and 7 years (mean ± SD = 5.0 ± 0.2) for males, and 3 to 11 years (mean ± SD = 5.8 ± 0.3) for females. Longevity was positively correlated to body size and weight within both sexes and populations. Sexual maturity was reached between 2 and 3 years, with sexual maturity recorded for males signifi- cantly lower than for females.
21 citations
TL;DR: The results indicated that the age range was 3–7 years in females and 3–6 years in males, and that sexual maturity was attained between 2 and 4 years, comparatively earlier in males than in females.
Abstract: The false tomato frog, Dyscophus guineti, is an endemic species of eastern Madagascar, typically found in open and swampy areas of mid-elevation forests. We measured 62 females and 70 males from a population from Marovato, next to Brickaville. Snout-vent length of the individuals ranged from 37.7–112.4 mm in females and 37.7–90.7 mm in males, while the mass varied within the range 25.0–80.2 g in males and 25.8–145.6 g in females. Skeletochronological analysis was conducted on clipped phalanges of 20 males and 20 females. The results of these analyses indicated that the age range was 3–7 years in females and 3–6 years in males, and that sexual maturity was attained between 2 and 4 years, comparatively earlier in males than in females. There was a significant correlation between age and size in females. This species appears larger in size but less long-lived than the sister-species D. antongilii.
9 citations
TL;DR: Based on daily monitoring around an urban pond in the coastal town of Maroantsetra, from 2003-2011, an analysis of the yearly reproductive activity of the tomato frog is provided, finding a positive correlation between daily adult counts and minimum air temperature.
Abstract: Based on daily monitoring around an urban pond in the coastal town of Maroantsetra, from 2003-2011, we provide an analysis of the yearly reproductive activity of the tomato frog ( Dyscophus antongilii ), a large-sized and prominent red-coloured microhylid frog from north-eastern Madagascar. Frogs were observed all year round but despite the limited climatic seasonality in the region it was possible to identify a high activity period between January-May and a lower activity period between June-December. Freshly laid eggs were found in all months except November, and with highest incidence between January and May, while calling was heard in all months. We found a positive correlation between daily adult counts and minimum air temperature. On the contrary rainfall did not significantly predict activity, although boosts of calling and egg-laying especially in the austral winter were observed after heavy rainfall events. We define D. antongilii in Maroantsetra as a sporadic wet season breeder that reproduces at irregular intervals following heavy rain events.
TL;DR: It is speculated that synthesis of a proteinase inhibitor in the skin of the tomato frog may be a component of an alternative strategy of this animal to defend itself against microorganisms.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2012 | 1 |
| 2011 | 1 |
| 2007 | 1 |
| 2000 | 1 |