Reproductive biology of four species of Fulica, in the La Angostura reservoir, Tafí del Valle, Tucumán
Fulica genus is comprised of 11 worldwide species, six of which inhabit Argentina. The current study was focused on the reproductive biology of four Fulica species resident in a high-altitude wetland in the province of Tucumán. The Angostura dam is located in the department of Tafí del Valle, Tucumán, at about 2000 m asl and has a water body of 12 km in length. There is a great diversity of waterbirds, including F. armillata, F. leucoptera, F. rufifrons, and F. ardesiaca, which are the subject of this study. Between August 2004 to December 2005, monitoring was carried out at the nesting sites. The nests and the eggs were measured to determine the reproductive parameters (number, size, and coloring pattern of the eggs in each clutch). Furthermore, we counted the presence of chicks, juveniles, or immatures in each nest. We made an image bank for a better description of the different stages of reproductive biology. Among the most relevant results obtained are the use of plastics in nesting (first record in Argentina), that clutches were smaller than documented in other studies, and the possible intraspecific brood parasitism of Fulica ardesiaca in Coscoroba coscoroba nests. To corroborate these results, it would be important to carry out more in-depth studies on a systematic and longer-term basis.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fundación Miguel Lillo
2022
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| Online Access: | https://www.lillo.org.ar/journals/index.php/acta-zoologica-lilloana/article/view/1632 |
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| Summary: | Fulica genus is comprised of 11 worldwide species, six of which inhabit Argentina. The current study was focused on the reproductive biology of four Fulica species resident in a high-altitude wetland in the province of Tucumán. The Angostura dam is located in the department of Tafí del Valle, Tucumán, at about 2000 m asl and has a water body of 12 km in length. There is a great diversity of waterbirds, including F. armillata, F. leucoptera, F. rufifrons, and F. ardesiaca, which are the subject of this study. Between August 2004 to December 2005, monitoring was carried out at the nesting sites. The nests and the eggs were measured to determine the reproductive parameters (number, size, and coloring pattern of the eggs in each clutch). Furthermore, we counted the presence of chicks, juveniles, or immatures in each nest. We made an image bank for a better description of the different stages of reproductive biology. Among the most relevant results obtained are the use of plastics in nesting (first record in Argentina), that clutches were smaller than documented in other studies, and the possible intraspecific brood parasitism of Fulica ardesiaca in Coscoroba coscoroba nests. To corroborate these results, it would be important to carry out more in-depth studies on a systematic and longer-term basis. |
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