Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina
Knowledge of population dynamics provides information on the recent history, current status, and future trends of a population. Physalaemus biligonigerus is widely distributed in the Neotropics, this anuran has a high and explosive reproductive activity, but its populations seem to be composed of yo...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v66_n2_p765_Nicolino http://hdl.handle.net/20.500.12110/paper_00347744_v66_n2_p765_Nicolino |
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paper:paper_00347744_v66_n2_p765_Nicolino2023-06-08T15:01:05Z Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina Age structure Life table Physalaemus biligonigerus Population demography Population projection Knowledge of population dynamics provides information on the recent history, current status, and future trends of a population. Physalaemus biligonigerus is widely distributed in the Neotropics, this anuran has a high and explosive reproductive activity, but its populations seem to be composed of young individuals. The objective of this study was to analyze the population demography of P. biligonigerus in a semipermanent pond in Río Cuarto, Córdoba, Argentina and to carry out a population projection through 30 generations. The age structure was determined from the use of skeletochronology, and a static life table was later made. Fertility and survival rates were calculated for each stage, by which a Leslie Matrix was constructed and the population projection was performed. The projection shows oscillations in the number of individuals but in spite of this, the final tendency of the population is an increase in its size. The highest proportion of survivors occurs in the egg-to-larval stages and the mortality force acts intensively on the larval phase. The net reproductive rate indicates that the population of P. biligonigerus of the study pond is increasing. © 2018, Universidad de Costa Rica. All rights reserved. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v66_n2_p765_Nicolino http://hdl.handle.net/20.500.12110/paper_00347744_v66_n2_p765_Nicolino |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Age structure Life table Physalaemus biligonigerus Population demography Population projection |
| spellingShingle |
Age structure Life table Physalaemus biligonigerus Population demography Population projection Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| topic_facet |
Age structure Life table Physalaemus biligonigerus Population demography Population projection |
| description |
Knowledge of population dynamics provides information on the recent history, current status, and future trends of a population. Physalaemus biligonigerus is widely distributed in the Neotropics, this anuran has a high and explosive reproductive activity, but its populations seem to be composed of young individuals. The objective of this study was to analyze the population demography of P. biligonigerus in a semipermanent pond in Río Cuarto, Córdoba, Argentina and to carry out a population projection through 30 generations. The age structure was determined from the use of skeletochronology, and a static life table was later made. Fertility and survival rates were calculated for each stage, by which a Leslie Matrix was constructed and the population projection was performed. The projection shows oscillations in the number of individuals but in spite of this, the final tendency of the population is an increase in its size. The highest proportion of survivors occurs in the egg-to-larval stages and the mortality force acts intensively on the larval phase. The net reproductive rate indicates that the population of P. biligonigerus of the study pond is increasing. © 2018, Universidad de Costa Rica. All rights reserved. |
| title |
Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| title_short |
Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| title_full |
Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| title_fullStr |
Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| title_full_unstemmed |
Demography and life histories of physalaemus biligonigerus (Anura: Leptodactylidae) in a peri-urban pond in central Argentina |
| title_sort |
demography and life histories of physalaemus biligonigerus (anura: leptodactylidae) in a peri-urban pond in central argentina |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00347744_v66_n2_p765_Nicolino http://hdl.handle.net/20.500.12110/paper_00347744_v66_n2_p765_Nicolino |
| _version_ |
1768542072780881920 |