New Frog Species Discovered in Colombia's Pacific Lowlands
A new frog species from the Epipedobates group is identified in Colombia.
Rebecca D. Tarvin, M. Betancourth-Cundar, J. C. Rios-Orjuela, A. J. Crawford, D. C. Cannatella
― 5 min read
Table of Contents
- Habitat
- Genetic Diversity
- Focus on Epipedobates boulengeri
- New Species Description
- Conservation Threats
- Research Methods
- Collection Process
- Morphological Characteristics
- Acoustic Analysis
- Comparison with Similar Species
- Findings on Habitat
- Observations on Behavior
- Conservation Status
- Conclusion
- References and Future Directions
- Original Source
A new type of frog has been found in the Pacific lowlands of Colombia. This frog belongs to the Epipedobates group, which includes various types of poison frogs. Researchers have identified nine potential species within this group, and the newly discovered frog seems to belong to a previously unnamed category referred to as E. sp. 1.
Habitat
The Epipedobates frogs live in both dry and wet tropical forests. They can be found at elevations ranging from sea level to about 1800 meters. Their Habitats stretch across the Pacific region of Colombia, Ecuador, and northern Peru. The unique features of the habitats include various types of forests and geographical settings.
Genetic Diversity
Recent studies have shown that there is considerable genetic and physical variety among these frogs. Despite having similar appearances, some of these frogs were found to be part of distinct evolutionary lines, indicating that they may be different species. This complexity has made it challenging for scientists to clarify the relationships between the different types of Epipedobates frogs in earlier studies.
Focus on Epipedobates boulengeri
One of the frogs studied, Epipedobates boulengeri, showcases significant genetic variation. Differences in traits like calls and the structure of their young were noted, suggesting that this species might consist of multiple different types. Recent genetic assessments have shown that E. boulengeri includes four separate genetic lines found in various regions of Colombia and Ecuador.
New Species Description
This study introduces a new species of Epipedobates from the Colombian Pacific lowlands. By looking at their calls, physical characteristics, and genetic makeup, researchers confirmed that this frog is indeed a new species. The new frog will be named Epipedobates [to be revealed]. Researchers will explore its calls, physical features, behavior, and natural environment.
Conservation Threats
Like many amphibians, the new Epipedobates species faces threats from human activities. Habitat destruction, pollution, and climate change all pose dangers to their survival. By naming and describing this species, scientists hope to deepen the understanding of Epipedobates frogs in Colombia and promote conservation efforts to protect these unique amphibians.
Research Methods
To study the new species, researchers collected various types of data over several years. They focused on genetic material, physical features, and calls. The frogs were observed in their natural habitats during specific periods of the day, and their surroundings were documented.
Collection Process
The research involved capturing live frogs, which were then examined for sex and other identifying characteristics. Samples were taken for genetic analysis, and the frogs were preserved for later studies. They used standardized measurements to provide consistent data on the frogs.
Morphological Characteristics
The new species is relatively small, with an average size of about 18 mm. This frog has a brown color on its back and distinct yellow markings in hidden areas, like the groin. Its fingers are structured uniquely, with some being longer than others.
Acoustic Analysis
The frogs produce calls that are important for communication. The advertisement calls of the new species have unique features, including a specific pitch and call length. These calls differ from those of other closely related species, thus aiding identification. Researchers recorded these calls in their natural setting.
Comparison with Similar Species
When looking at other species in the Epipedobates group, it was clear that E. [to be revealed] has distinct differences in size, color, and calls compared to its relatives, such as E. narinensis and E. boulengeri. These differences are essential for conservationists to understand the diverse needs of each species.
Findings on Habitat
The new species was found primarily in disturbed areas close to human settlements. This includes sites with agricultural activity and some pollution. Despite these challenges, populations were seen in various locations, suggesting adaptability, though continuous monitoring is necessary.
Observations on Behavior
The Epipedobates frogs were often observed during specific times of the day, especially in the mornings and early afternoons. They are generally found around water bodies. The way they call and interact with their environment plays a critical role in their survival.
Conservation Status
The number of the new species is likely small, and they are facing threats from habitat loss. Given the current situation, researchers recommend classifying this frog as Vulnerable. The conservation efforts must focus on protecting their habitats and studying their populations further.
Conclusion
The discovery of Epipedobates [to be revealed] adds to the growing knowledge of biodiversity in the region. Understanding these frogs' distinct characteristics and the threats they face is vital for conservation efforts. Continued research and conservation actions are essential to ensure the survival of this new species and its relatives in their natural habitats.
References and Future Directions
To better understand Epipedobates [to be revealed] and other related frogs, ongoing research is necessary. This includes examinations of their habitats, behaviors, and genetic backgrounds. Collaboration with conservation groups will help promote awareness and action to protect these incredible amphibians from threats that compromise their existence. By engaging local communities and raising awareness about the importance of preserving biodiversity, we can work towards a brighter future for these unique species in Colombia's forests.
Original Source
Title: Honoring the Afro-Colombian musical culture with the naming of Epipedobates currulao sp. nov. (Anura: Dendrobatidae), a frog from the Pacific rainforests
Abstract: The number of amphibian species described yearly shows no signs of slowing down, especially in tropical regions, implying that the biodiversity of amphibians remains woefully underestimated. We describe a new species of poison frog from the Pacific lowlands of southwestern Colombia: Epipedobates currulao sp. nov., named for the Pacific music and dance genre known as bambuco viejo or currulao. This species inhabits lowland forests from 0-260 m a.s.l. This taxon differs from congeners by having a combination of bright yellow blotches in the dorsal anterior region of the thigh and upper arm, homogenous dark-brown dorsal coloration, and advertisement calls of long duration and many pulses. We also describe the courtship call of E. currulao, which is lower in frequency and shorter in duration than its advertisement call. Molecular phylogenetic analyses confirm the monophyly of the populations sampled and its position as the sister species of Epipedobates narinensis, which occurs in southwestern Colombia. Among species of Epipedobates, the new species has been previously confused with E. boulengeri, but we find that the two species are allopatric and represent two divergent clades (1.77% divergent for 12S-16S and 5.39% for CYTB). These species can be distinguished by the presence of a bright yellow blotch on the dorsal anterior region of the thigh and on the upper arm of E. currulao, blotches that are either more white than yellow or absent in E. boulengeri. In addition, the advertisement calls are distinct, with E. currulao having a single but long call in each call series while E. boulengeri has 2-6 calls in a series with each call being much shorter in length. Epipedobates currulao is the most northern species of Epipedobates, which extends southwards along the western edge of the Andes. Known as the Choco, this biogeographic region has been largely converted to agriculture in Ecuador and is experiencing widespread transformation in Colombia, which may endanger E. currulao and biodiversity in the region. A Spanish translation of the main text is available in the Supplementary Materials. ResumenEl numero de especies de anfibios descritas cada ano continua aumentando, especialmente en las regiones tropicales, lo que implica que la biodiversidad de anfibios sigue siendo subestimada. Describimos una nueva especie de rana venenosa de las tierras bajas del Pacifico del suroccidente de Colombia: Epipedobates currulao sp. nov., nombrada asi por el genero de musica y danza del Pacifico conocido como bambuco viejo o currulao. Las ranas de esta especie habitan en bosques de tierras bajas desde el nivel del mar hasta los 260 m. Este taxon se diferencia de sus congeneres por tener una combinacion de manchas amarillas brillantes en la region dorsal anterior del muslo y los brazos, una coloracion dorsal homogenea marron oscuro y cantos de advertencia mas largos y en consecuencia con mayor numero de pulsos. Tambien describimos la llamada de cortejo de E. currulao, con menor frecuencia pico y duracion que la llamada de advertencia. Los analisis filogeneticos confirman la monofilia de la especie y su posicion como hermana de Epipedobates narinensis, la cual se distribuye en el suroccidente de Colombia. Entre las especies de Epipedobates, la nueva especie ha sido previamente asignada a E. boulengeri, pero las dos especies son alopatricas y representan dos clados filogeneticamente divergentes (1.77% divergentes para 12S-16S y 5.39% para CYTB). Estas especies se pueden distinguir fenotipicamente por la presencia de una mancha amarilla brillante en la region dorsal anterior del muslo y en la parte superior del brazo en E. currulao, que son mas blancas que amarillas o estan ausentes en E. boulengeri. Ademas, los cantos de advertencia son distintos, E. currulao tiene una unica y larga llamada en una serie de llamadas, mientras que E. boulengeri tiene de 2 a 6 llamadas por serie, siendo cada llamada mucho mas corta. Epipedobates currulao es la especie distribuida mas al norte del genero Epipedobates, el cual se extiende hacia el sur a lo largo del flanco occidental de la cordillera de los Andes. Esta region conocida como el Choco biogeografico, ha sido fuertemente transformada por agricultura en Ecuador y esta experimentando una transformacion generalizada de sus bosques en Colombia, lo cual pone en peligro a E. currulao y toda su biodiversidad en un futuro cercano. Una traduccion al espanol del texto principal esta disponible en el material suplementario.
Authors: Rebecca D. Tarvin, M. Betancourth-Cundar, J. C. Rios-Orjuela, A. J. Crawford, D. C. Cannatella
Last Update: 2024-12-31 00:00:00
Language: English
Source URL: https://www.biorxiv.org/content/10.1101/2024.03.23.586415
Source PDF: https://www.biorxiv.org/content/10.1101/2024.03.23.586415.full.pdf
Licence: https://creativecommons.org/licenses/by-nc/4.0/
Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.
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