Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica)
Large numbers of parasites are found in various organs of anuran amphibians, with parasite intensities thought to modulate the host's Darwinian fitness traits. Interaction between the anuran hosts and their multiple parasites should modulate the host's phenotypic characteristic, such as th...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-12-01
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| Series: | International Journal for Parasitology: Parasites and Wildlife |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213224417300305 |
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| author | Eduardo Hermógenes Moretti Braz Titon, Jr. Carla Bonetti Madelaire Raquel de Arruda Tatiana Alvarez Fernando Ribeiro Gomes |
| author_facet | Eduardo Hermógenes Moretti Braz Titon, Jr. Carla Bonetti Madelaire Raquel de Arruda Tatiana Alvarez Fernando Ribeiro Gomes |
| author_sort | Eduardo Hermógenes Moretti |
| collection | DOAJ |
| description | Large numbers of parasites are found in various organs of anuran amphibians, with parasite intensities thought to modulate the host's Darwinian fitness traits. Interaction between the anuran hosts and their multiple parasites should modulate the host's phenotypic characteristic, such as those associated with high energetic demand (such as calling effort and locomotor performance), energy balance (standard metabolic rate), and morphological plasticity (as indicated by organ masses). The present study investigated the impact of parasite intensities on the behavioral, physiological, and morphological traits of wild adult male Rhinella icterica (Anura: Bufonidae). We tested as to whether individuals with higher parasite intensities would present: 1) lower vocal calling effort in the field, as well as poorer locomotor performance and body-condition index; and 2) higher standard metabolic rates and internal organ masses. Measurements included: calling effort in the field; standard metabolic rate; locomotor performance; parasite intensity; internal organ masses (heart, liver, kidneys, intestines, stomach, lungs, hind limb muscle, and spleen); and the body-condition index. Results showed a negative association of parasite intensities with locomotor performance, and standard metabolic rate of R. icterica. A positive association between parasite intensities and relative organ masses (heart, intestines and kidneys) was also evident. Toads with higher pulmonary and intestinal parasites intensities also showed higher total parasite intensities. Keywords: Bufonidae, Locomotor performance, Metabolic rate, Vocal effort, Rhabdias, Parasite association |
| first_indexed | 2024-04-12T02:36:36Z |
| format | Article |
| id | doaj.art-99611c4f21094c21b018a8d556db7eee |
| institution | Directory Open Access Journal |
| issn | 2213-2244 |
| language | English |
| last_indexed | 2024-04-12T02:36:36Z |
| publishDate | 2017-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal for Parasitology: Parasites and Wildlife |
| spelling | doaj.art-99611c4f21094c21b018a8d556db7eee2022-12-22T03:51:29ZengElsevierInternational Journal for Parasitology: Parasites and Wildlife2213-22442017-12-0163146154Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica)Eduardo Hermógenes Moretti0Braz Titon, Jr.1Carla Bonetti Madelaire2Raquel de Arruda3Tatiana Alvarez4Fernando Ribeiro Gomes5Corresponding author. Rua do Matão, Travessa 14, 101, 05508-900, São Paulo, SP, Brazil.; Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilDepartamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilDepartamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilDepartamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilDepartamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilDepartamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Rua Prof. Dr. Antônio Celso Wagner Zanin, s/n, 18618-689, Botucatu, SP, BrazilLarge numbers of parasites are found in various organs of anuran amphibians, with parasite intensities thought to modulate the host's Darwinian fitness traits. Interaction between the anuran hosts and their multiple parasites should modulate the host's phenotypic characteristic, such as those associated with high energetic demand (such as calling effort and locomotor performance), energy balance (standard metabolic rate), and morphological plasticity (as indicated by organ masses). The present study investigated the impact of parasite intensities on the behavioral, physiological, and morphological traits of wild adult male Rhinella icterica (Anura: Bufonidae). We tested as to whether individuals with higher parasite intensities would present: 1) lower vocal calling effort in the field, as well as poorer locomotor performance and body-condition index; and 2) higher standard metabolic rates and internal organ masses. Measurements included: calling effort in the field; standard metabolic rate; locomotor performance; parasite intensity; internal organ masses (heart, liver, kidneys, intestines, stomach, lungs, hind limb muscle, and spleen); and the body-condition index. Results showed a negative association of parasite intensities with locomotor performance, and standard metabolic rate of R. icterica. A positive association between parasite intensities and relative organ masses (heart, intestines and kidneys) was also evident. Toads with higher pulmonary and intestinal parasites intensities also showed higher total parasite intensities. Keywords: Bufonidae, Locomotor performance, Metabolic rate, Vocal effort, Rhabdias, Parasite associationhttp://www.sciencedirect.com/science/article/pii/S2213224417300305 |
| spellingShingle | Eduardo Hermógenes Moretti Braz Titon, Jr. Carla Bonetti Madelaire Raquel de Arruda Tatiana Alvarez Fernando Ribeiro Gomes Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) International Journal for Parasitology: Parasites and Wildlife |
| title | Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) |
| title_full | Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) |
| title_fullStr | Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) |
| title_full_unstemmed | Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) |
| title_short | Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica) |
| title_sort | behavioral physiological and morphological correlates of parasite intensity in the wild cururu toad rhinella icterica |
| url | http://www.sciencedirect.com/science/article/pii/S2213224417300305 |
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