Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco
The aims of this study were to characterize the fauna of dung beetles and analyze their spatial and temporal diversity in a cattle ranch in the province of Chaco. Seven surveys were conducted in three environmental units: a forest fragment, a cattle pasture, and an open grassland. The efficiency of...
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| Formato: | Artículo |
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Springer
2021
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| Acceso en línea: | http://repositorio.unne.edu.ar/handle/123456789/28290 |
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I48-R184-123456789-28290 |
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I48-R184-123456789-282902025-03-06T11:09:31Z Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco Damborsky, Miryam Pieri Álvarez Bohle, María Celeste Ibarra Polesel, Mario Gabriel Porcel, Eduardo Adolfo Fontana, José Luis Argentina Aphodiinae Diversity Scarabaeinae Seasonality The aims of this study were to characterize the fauna of dung beetles and analyze their spatial and temporal diversity in a cattle ranch in the province of Chaco. Seven surveys were conducted in three environmental units: a forest fragment, a cattle pasture, and an open grassland. The efficiency of the sampling was assessed with non-parametric richness estimators, and attributes of the assemblage were evaluated. The species composition and the abundance distribution in each of the environmental units studied were compared using rank-abundance curves. The indicator value of each species was measured with the IndVal method. The relationship between richness, abundance, and environmental variables (temperature, precipitation, and relative humidity) was calculated by multivariate multiple regression analysis. A total of 3,356 adult individuals belonging to 29 species of the subfamily Scarabaeinae and to five species of Aphodiinae were captured. Dichotomius nisus (Olivier), Trichillum externepunctatum (Preudhomme), Canthon podagricus (Harold), Onthophagus hirculus (Mannerheim), Pseudocanthon aff. perplexus, Ontherus sulcator (Fabricius), and Ataenius platensis (Blanchard) were the most abundant. Diversity, species richness, and abundance were highest in the forest fragment and in spring and summer captures. Between 94% and 97% of the species present in the entire landscape were recorded. According to the analysis of similarity, the composition of the assemblage was different among habitats. Eurysternus caribaeus (Herbst), Eurysternus aeneus (Génier), and O. sulcator were indicators of the forest. In the three units, the coprophagous species represented more than 60% of the total species number. The rainfall regime, the temperature, and the heterogeneous use of the environmental units influenced the structure of dung beetle assemblages. 2021-08-02T12:09:42Z 2021-08-02T12:09:42Z 2014-12-05 Artículo Damborsky, Miryam Pieri, et al., 2015. Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco. Neotropical Entomology. New York: Springer, vol. 44, no. 1, p. 30-39. ISSN 1678-8052. http://repositorio.unne.edu.ar/handle/123456789/28290 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Springer Neotropical Entomology, 2015, vol. 44, no. 1, p. 30-39. |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-184 |
| collection |
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
| language |
Inglés |
| topic |
Argentina Aphodiinae Diversity Scarabaeinae Seasonality |
| spellingShingle |
Argentina Aphodiinae Diversity Scarabaeinae Seasonality Damborsky, Miryam Pieri Álvarez Bohle, María Celeste Ibarra Polesel, Mario Gabriel Porcel, Eduardo Adolfo Fontana, José Luis Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| topic_facet |
Argentina Aphodiinae Diversity Scarabaeinae Seasonality |
| description |
The aims of this study were to characterize the fauna of dung beetles and analyze their spatial and temporal diversity in a cattle ranch in the province of Chaco. Seven surveys were conducted in three environmental units: a forest fragment, a cattle pasture, and an open grassland. The efficiency of the sampling was assessed with non-parametric richness estimators, and attributes of the assemblage were evaluated. The species composition and the abundance distribution in each of the environmental units studied were compared using rank-abundance curves. The indicator value of each species was measured with the IndVal method. The relationship between richness, abundance, and environmental variables (temperature, precipitation, and relative humidity) was calculated by multivariate multiple regression analysis. A total of 3,356 adult individuals belonging to 29 species of the subfamily Scarabaeinae and to five species of Aphodiinae were captured. Dichotomius nisus (Olivier), Trichillum externepunctatum (Preudhomme), Canthon podagricus (Harold), Onthophagus hirculus (Mannerheim), Pseudocanthon aff. perplexus, Ontherus sulcator (Fabricius), and Ataenius platensis (Blanchard) were the most abundant. Diversity, species richness, and abundance were highest in the forest fragment and in spring and summer captures. Between 94% and 97% of the species present in the entire landscape were recorded. According to the analysis of similarity, the composition of the assemblage was different among habitats. Eurysternus caribaeus (Herbst), Eurysternus aeneus (Génier), and O. sulcator were indicators of the forest. In the three units, the coprophagous species represented more than 60% of the total species number. The rainfall regime, the temperature, and the heterogeneous use of the environmental units influenced the structure of dung beetle assemblages. |
| format |
Artículo |
| author |
Damborsky, Miryam Pieri Álvarez Bohle, María Celeste Ibarra Polesel, Mario Gabriel Porcel, Eduardo Adolfo Fontana, José Luis |
| author_facet |
Damborsky, Miryam Pieri Álvarez Bohle, María Celeste Ibarra Polesel, Mario Gabriel Porcel, Eduardo Adolfo Fontana, José Luis |
| author_sort |
Damborsky, Miryam Pieri |
| title |
Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| title_short |
Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| title_full |
Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| title_fullStr |
Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| title_full_unstemmed |
Spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid Chaco |
| title_sort |
spatial and temporal variation of dung beetle assemblages in a fragmented landscape at eastern humid chaco |
| publisher |
Springer |
| publishDate |
2021 |
| url |
http://repositorio.unne.edu.ar/handle/123456789/28290 |
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