Effects of Clearing in a Tropical Rain Forest on the Composition of the Coprophagous Scarab Beetle Fauna (Coleoptera)

Howden, HF; Nealis, Vincent G.

doi:10.2307/2989750

Cited by 181 publications

(155 citation statements)

References 5 publications

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“…Dung was kept in plastic bags in the shade. Since the freshness of dung is very important for its attractiveness to dung beetles (Halffter & Edmonds 1982, Howden & Nealis 1975, the dung was generally used for experiments on the same day. When the dung was used the next day, it was kept in a cooler box with ice.…”

Section: Et H Od Smentioning

confidence: 99%

Effects of dung presence, dung amount and secondary dispersal by dung beetles on the fate of Micropholis guyanensis (Sapotaceae) seeds in Central Amazonia

Andresen

2001

J. Trop. Ecol.

101

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ABSTRACT. The study of seed fate is crucial for understanding fruit-frugivore interactions. One factor that can greatly influence the fate of seeds dispersed through mammal defecation, is the dung that accompanies the seeds. Dung attracts dung beetles and rodents; the former eat and bury dung, the latter feed on seeds. In this study the fate of Micropholis guyanensis subsp. guyanensis seeds surrounded by no dung and by 5, 10 and 25 g of howler monkey dung was followed until seedling establishment. The depths at which dung beetles bury the seeds were measured, and the effect of burial depth on seedling emergence was determined. Although initial seed fates differed among treatments, the same percentage of seedlings established from seeds without faecal material, and from seeds with 5, 10 and 25 g of dung. However, a significantly higher proportion of seedlings established from buried seeds when compared to seeds that remained on the surface. The percentage of seedlings establishing in a controlled germination experiment decreased significantly with increasing burial depth. The effect of dung beetle activity should be taken into consideration when assessing the role that mammal endozoochory plays on seed dispersal ecology of tropical plants. These results provide further evidence for the emerging realization that the study of secondary seed dispersal and post-dispersal events is crucial for a more complete understanding of plant regeneration.

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Section: Et H Od Smentioning

confidence: 99%

Effects of dung presence, dung amount and secondary dispersal by dung beetles on the fate of Micropholis guyanensis (Sapotaceae) seeds in Central Amazonia

Andresen

2001

J. Trop. Ecol.

101

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“…El caso de la región Amazónica es especialmente complejo, a pesar de haberse realizado un buen número de estudios (Howden & Nealis, 1975;Quintero, 1998;Castro, 2001;Pulido et al, 2003;Gasca, 2005;Murcia, 2008;Noriega et al, 2008b;Otavo et al, 2013), es muy poca la información publicada si se tiene en cuenta su extensión (379 183km 2 , 32.9% del territorio nacional). La región circundante a la ciudad de Leticia es la mejor muestreada, pero hacia el interior del departamento del Amazonas son muy pocos los muestreos realizados.…”

Section: Discussionunclassified

“…Para el caso de Colombia se registran 305 especies de escarabajos coprófagos agrupadas en 40 géneros. El conocimiento de la riqueza, distribución e historia natural de este grupo ha aumentado significativamente en las últimas décadas a raíz del incremento de estudios en diferentes regiones del país (Howden & Campbell, 1974;Howden & Nealis, 1975;Medina et al, 1990;Pardo & Rubiano, 1994;Pardo et al, 1995;Martín-Piera & Fernández-Torres, 1996;Medina & Kattan, 1996;Pardo-Locarno & Henao, 1996;Amat et al, 1997;Escobar, 1997;Pardo, 1997;Álvarez et al, 1999;Améz-quita et al, 1999;Castellanos et al, 1999;Escobar, 2000a;Escobar & Chacón de Ulloa, 2000;Gasca & Ospina, 2000;GEMA, 2002;Laverde et al, 2002;Medina et al, 2002;Noriega, 2002a;Pardo & Castillo, 2002a;, 2002b;Bustos-Gómez & Lopera, 2003;Escobar, 2003a;, 2003b;Huertas et al, 2003;Neita et al, 2003;Pulido et al, 2003;Escobar, 2004;García & Pardo-Locarno, 2004;Noriega, 2004;Pardo et al, 2004;Escobar et al, 2005;Gasca, 2005;Escobar et al, 2006;Fuentes & Camero, 2006;Mol...…”

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Grado de cobertura del muestreo de escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en Colombia

Noriega

2015

RBT

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Estimation of the sampling cover for dung beetles (Coleoptera: Scarabaeinae) in Colombia. The promotion of biodiversity conservation strategies must address the lack of information and the difficulty of identifying knowledge gaps that may facilitate our knowledge of different taxonomic groups. Dung beetles constitute one of those groups, despite having been proposed as an efficient bioindicator of environmental disturbance processes. In this work, we aimed to prepare a diagnosis on the state of knowledge of the subfamily Scarabaeinae, focusing on the cover sampling degree of this group in Colombia, with the purpose of identifying high-priority areas that will allow the completion of a national inventory. The work consisted of a bibliographical compilation using 12 referential databases and the examination of specimens deposited in 26 national collections. A total of 16 940 individuals were examined, finding registers for 232 species from 386 localities. The respective distribution cover maps were presented, and the cover at a national level was 10.62%. A historical analysis demonstrated a proliferation in the number of studies for the last three decades; nevertheless, a great proportion of unpublished works persists, resulting in only 64 sampled localities with published records. The localities with the greatest sampling efforts were RN La Planada, Lloro, AUN Los Estoraques, PNN Tinigua and Mariquita. Registries for all departments were available, and the best sampled ones were Cundinamarca, Antioquia, Valle del Cauca and Boyaca. The ecosystems with the greatest number of publications are the Andean pre mountain humid forest, followed by the Andean mountain humid forest and the Pacific humid forest. Other ecosystems with few studies included mangroves, desert zones, natural savannahs, palm swamps, paramos, flooding forests and agroforestry systems. The biogeographic region with the greatest number of localities was the Andean region, followed by Choco-Magdalenense and Amazonia. Our results showed that high levels of subsampling persist and that some zones lack registries, as in the case of some parks of the national system of protected areas. It is imperative that the sampling cover is extended at a national level, focusing all possible efforts on collecting in those subsampled regions that have high conservation importance, with the main goal of completing the listing of species and their distribution. Rev. Biol. Trop. 63 (1): 97-125. Epub 2015 March 01.

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“…Ten traps, consisting of a plastic cup, 88 mm in diameter by 121 mm in height, baited with a 20-30 g ball of human dung wrapped in cheesecloth and covered with a styrofoam plate for protection from precipitation, were spaced 50 m apart along a transect (Larsen & Forsyth 2005). Traps were checked every 24h and re-baited every other day to reduce bait desiccation (Howden & Nealis 1975). A sampling period consisted of four to six days of trapping.…”

Section: Methodsmentioning

confidence: 99%

Dung beetle communities: a neotropical-north temperate comparison

Radtke¹,

Fonseca²,

Williamson³

2010

Neotrop. entomol.

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-Dung beetle communities have been compared across north temperate latitudes. Tropical dung beetle communities appear to be more diverse based on studies using different methodologies. Here, we present results from a standardized sampling protocol used to compare dung beetle communities across five neotropical forests in Brazil and Ecuador and two warm, north temperate forests in Mississippi and Louisiana. Species richness in the tropical forests was three to seven times higher than the temperate forests, as would be expected by studies of other taxa across tropical and temperate latitudes. Average body size in the temperate forests was larger than the tropical forests, as predicted by Bergmann's rule. Dung beetle abundance and volume per trap-day were generally higher in Ecuador than Brazil, and higher in Mississippi than Louisiana, but there were no tropical-temperate differences. Species rank-abundance curves were similar within countries and between countries. Rank-volume distributions indicated a smaller range of beetle body sizes in Ecuador versus Brazil or the USA. Community similarity was high within countries and low between countries. Community differences between Brazil and Ecuador sites may be explained by differences in productivity based on geological age of the soils.

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Effects of Clearing in a Tropical Rain Forest on the Composition of the Coprophagous Scarab Beetle Fauna (Coleoptera)

Cited by 181 publications

References 5 publications

Effects of dung presence, dung amount and secondary dispersal by dung beetles on the fate of Micropholis guyanensis (Sapotaceae) seeds in Central Amazonia

Effects of dung presence, dung amount and secondary dispersal by dung beetles on the fate of Micropholis guyanensis (Sapotaceae) seeds in Central Amazonia

Grado de cobertura del muestreo de escarabajos coprófagos (Coleoptera: Scarabaeidae: Scarabaeinae) en Colombia

Dung beetle communities: a neotropical-north temperate comparison

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