Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest
Predation is a key determinant of prey community structure, but few studies have measured the effect of multiple predators on a highly diverse prey community. In this study, we asked whether the abundance, species richness, and species composition of a species-rich assemblage of termites in an Amazo...
| Autor principal: | Sales Dambros, Cristian de |
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| Outros Autores: | Morais, José Wellington, Vasconcellos, Alexandre, Souza, Jorge Luiz Pereira, Franklin, E., Gotelli, Nicholas J. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Biotropica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17360 |
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oai:repositorio:1-17360 |
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oai:repositorio:1-17360 Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest Sales Dambros, Cristian de Morais, José Wellington Vasconcellos, Alexandre Souza, Jorge Luiz Pereira Franklin, E. Gotelli, Nicholas J. Ant Environmental Gradient Inorganic Phosphorus Population Density Predator Predator-prey Interaction Rainforest Soil Chemistry Soil Texture Species Diversity Species Richness Termite Top-down Control Vegetation Cover Amazonia Formicidae Isoptera Predation is a key determinant of prey community structure, but few studies have measured the effect of multiple predators on a highly diverse prey community. In this study, we asked whether the abundance, species richness, and species composition of a species-rich assemblage of termites in an Amazonian rain forest is more strongly associated with the density of predatory ants or with measures of vegetation, and soil texture and chemistry. We sampled termite assemblages with standardized hand-collecting in 30 transects arranged in a 5 km × 6 km grid in a terra firme Amazonian rain forest. For each transect, we also measured vegetation structure, soil texture, and soil phosphorus, and estimated the density of predatory ants from baits, pitfall traps, and Winkler samples. Seventy-nine termite species were recorded, and the total density of predatory ants was the strongest single predictor of local termite abundance (r = -0.66) and termite species richness (r = -0.44). In contrast, termite abundance and species richness were not strongly correlated with edaphic conditions (|r| < 0.01), or with the density of non-predatory ants (rabund = -0.27; rs = -0.06). Termite species composition was correlated with soil phosphorus content (r = 0.79), clay content (r = -0.75), and tree density (r = -0.42). Assemblage patterns were consistent with the hypothesis that ants collectively behaved as generalist predators, reducing total termite abundance, and species richness. There was no evidence that ants behaved as keystone predators, or that any single termite species benefited from the reduction in the abundance of potential competitors. © 2016 The Association for Tropical Biology and Conservation. 2020-06-15T21:41:42Z 2020-06-15T21:41:42Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/17360 10.1111/btp.12270 en Volume 48, Número 2, Pags. 237-245 Restrito Biotropica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Ant Environmental Gradient Inorganic Phosphorus Population Density Predator Predator-prey Interaction Rainforest Soil Chemistry Soil Texture Species Diversity Species Richness Termite Top-down Control Vegetation Cover Amazonia Formicidae Isoptera |
| spellingShingle |
Ant Environmental Gradient Inorganic Phosphorus Population Density Predator Predator-prey Interaction Rainforest Soil Chemistry Soil Texture Species Diversity Species Richness Termite Top-down Control Vegetation Cover Amazonia Formicidae Isoptera Sales Dambros, Cristian de Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| topic_facet |
Ant Environmental Gradient Inorganic Phosphorus Population Density Predator Predator-prey Interaction Rainforest Soil Chemistry Soil Texture Species Diversity Species Richness Termite Top-down Control Vegetation Cover Amazonia Formicidae Isoptera |
| description |
Predation is a key determinant of prey community structure, but few studies have measured the effect of multiple predators on a highly diverse prey community. In this study, we asked whether the abundance, species richness, and species composition of a species-rich assemblage of termites in an Amazonian rain forest is more strongly associated with the density of predatory ants or with measures of vegetation, and soil texture and chemistry. We sampled termite assemblages with standardized hand-collecting in 30 transects arranged in a 5 km × 6 km grid in a terra firme Amazonian rain forest. For each transect, we also measured vegetation structure, soil texture, and soil phosphorus, and estimated the density of predatory ants from baits, pitfall traps, and Winkler samples. Seventy-nine termite species were recorded, and the total density of predatory ants was the strongest single predictor of local termite abundance (r = -0.66) and termite species richness (r = -0.44). In contrast, termite abundance and species richness were not strongly correlated with edaphic conditions (|r| < 0.01), or with the density of non-predatory ants (rabund = -0.27; rs = -0.06). Termite species composition was correlated with soil phosphorus content (r = 0.79), clay content (r = -0.75), and tree density (r = -0.42). Assemblage patterns were consistent with the hypothesis that ants collectively behaved as generalist predators, reducing total termite abundance, and species richness. There was no evidence that ants behaved as keystone predators, or that any single termite species benefited from the reduction in the abundance of potential competitors. © 2016 The Association for Tropical Biology and Conservation. |
| format |
Artigo |
| author |
Sales Dambros, Cristian de |
| author2 |
Morais, José Wellington Vasconcellos, Alexandre Souza, Jorge Luiz Pereira Franklin, E. Gotelli, Nicholas J. |
| author2Str |
Morais, José Wellington Vasconcellos, Alexandre Souza, Jorge Luiz Pereira Franklin, E. Gotelli, Nicholas J. |
| title |
Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| title_short |
Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| title_full |
Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| title_fullStr |
Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| title_full_unstemmed |
Association of Ant Predators and Edaphic Conditions with Termite Diversity in an Amazonian Rain Forest |
| title_sort |
association of ant predators and edaphic conditions with termite diversity in an amazonian rain forest |
| publisher |
Biotropica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17360 |
| _version_ |
1787141144298127360 |
| score |
11.755432 |