Diel separation of Afrotropical dung beetle guilds—avoiding competition and neglecting resources (Coleoptera: Scarabaeoidea)

Krell, Frank-Thorsten; Krell, Frank‐Thorsten; Linsenmair, K. Eduard

doi:10.1080/00222930310001618921

Cited by 42 publications

(43 citation statements)

References 25 publications

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“…Moreover, the dark coloration of nocturnal species may have evolved as an adaptation in order to avoid predation (Hernández 2002). On the other hand, telecoprid species are frequently diurnal; the increase in body temperature increases the mobility of these beetles, thereby favoring the construction of excrement balls (Krell-Westerwalbesloh et al 2004, Halffter et al 2008). …”

Section: Discussionmentioning

confidence: 99%

Rapid Turnover and Edge Effects in Dung Beetle Assemblages (Scarabaeidae) at a Bolivian Neotropical Forest–Savanna Ecotone1

Spector

Ayzama

2003

Biotrop

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Section: Discussionmentioning

confidence: 99%

Rapid Turnover and Edge Effects in Dung Beetle Assemblages (Scarabaeidae) at a Bolivian Neotropical Forest–Savanna Ecotone1

Spector

Ayzama

2003

Biotrop

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“…Nocturnal tunnelers, such as Catharsius ninus (Fig. 2), may avoid competition with the competitively superior diurnal ball rollers by exploiting the temporal refuges left by such constraints (Walter 1985;Krell-Westerwalbesloh et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Patterns of Niche Partitioning and Alternative Reproductive Strategies in an East African Dung Beetle Assemblage

2012

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Sympatric species of coprophagus dung beetles rely on essentially the same resource for provisioning broods, which raises the question of how local species diversity is maintained. Interspecific competition may be mitigated to some extent by large-scale spatial (e.g., habitat type) and temporal (e.g., seasonal) variation in activity. Niche partitioning also occurs at the scale of individual dung pads. We examined the extent to which inter-and intraspecific variation in adult morphology and behavior contribute to spatial and temporal partitioning above and below the dung pad in the dung beetle community of Kibale Forest, Uganda. Excavations in the vicinity of dung pads revealed significant heterogeneity among species and guilds in the lateral distance between tunnels and dung, and in tunnel depth. Patterns of succession and diel activity demonstrated strong temporal dissociations among guilds. In one species, Onthophagus multicornis, we found a bimodal distribution of male horn sizes and a tunneling pattern consistent with alternative reproductive tactics.

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“…If St and Sr together monopolize most of the resource (due to their numbers and size), Ad species have to be active in other periods of the year when competition is less severe as strong and Scarabaeidae are scarce (Hanski & Cambefort, 1991;Krell-Westerwalbesloh et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Seasonal occurrence and local coexistence within scarabaeid dung beetle guilds (Coleoptera: Scarabaeoidea) in Tunisian pasture

Errouissi¹,

Labidi²,

Nouira³

2009

Eur. J. Entomol.

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Abstract. Dung beetle assemblages were monitored using baited pitfall traps from January to December 2006 in Northern Tunisia. 4,965 beetles belonging to 37 species were trapped. Aphodius lineolatus and Onthophagus taurus dominated the assemblages. Results showed a significant seasonal variation in assemblage composition, and diversity. There were four periods of activity during the course of the year. Temporal turnover was highest in October and in February. Temporal distribution of species shows seasonal segregation and opposite patterns in the two dominant guilds (Aphodiinae-dwellers and Scarabaeidae-tunnelers). Aphodiidaedwellers were active from autumn to spring, although they were affected by summer drought. The Aphodius-dweller showed high temporal plasticity and phenological segregation. In contrast, Scarabaeidae-tunnelers were active all year round but mainly in the spring-summer period and less so in winter. Species in this guild showed a high degree of phenological overlap and a short ecological length. Our results suggest that coexistence in dung beetle guilds is facilitated by their phenological patterns, which reflect distinct ecological requirements and biogeographical origin of species. Geotrupidae-tunnelers and Scarabaeidae-rollers were rare and occurred mainly in the summer-autumn period, when individuals of the two other guilds were rare.

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Diel separation of Afrotropical dung beetle guilds—avoiding competition and neglecting resources (Coleoptera: Scarabaeoidea)

Cited by 42 publications

References 25 publications

Rapid Turnover and Edge Effects in Dung Beetle Assemblages (Scarabaeidae) at a Bolivian Neotropical Forest–Savanna Ecotone1

Rapid Turnover and Edge Effects in Dung Beetle Assemblages (Scarabaeidae) at a Bolivian Neotropical Forest–Savanna Ecotone1

Patterns of Niche Partitioning and Alternative Reproductive Strategies in an East African Dung Beetle Assemblage

Seasonal occurrence and local coexistence within scarabaeid dung beetle guilds (Coleoptera: Scarabaeoidea) in Tunisian pasture

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