CHAPTER 10. Dung Beetles in Tropical Forests in South-East Asia

Hanksi, Ilkka; Krikken, J.

doi:10.1515/9781400862092.179

Cited by 71 publications

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“…Apart from being recognized as important decomposer organisms (involved with nutrient recycling) (Hanski and Krikken 1991), their ecological role as a secondary seed disperser has recently received increasing attention (Estrada and Coates-Estrada 1991;Vullnec 2002). It has been reported worldwide that the species diversity of dung beetles has been rapidly decreasing with fragmentation and isolation of their habitats arising directly or indirectly because of increasing human activity (Klein 1989;Davis et al 2001;Halffter and Arellano 2002;Feer and Hingrat 2004).…”

Section: Introductionmentioning

confidence: 99%

Assessing the diversity of dung beetle assemblages utilizing Japanese monkey feces in cool-temperate forests

Enari

Koike

Sakamaki

2011

Journal of Forest Research

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Ecological investigation of the distribution and composition of dung beetle species utilizing feces of wild mammals has rarely been attempted, especially in cooltemperate forests. In this study we recorded and evaluated the community structure of dung beetle species utilizing feces of Japanese monkeys (Macaca fuscata) by conducting a macro-scale inventory survey in the northeastern Shirakami Mountains, located in the northernmost part of mainland Japan. Moreover, to assess the effect of humaninduced forest disturbance on species assemblages in this cool-temperate area, we also carried out field sampling using pitfall traps baited with monkey feces in primary forests, secondary forests, and coniferous plantations, during every season except winter. Our findings were: (1) 14 dung beetle species comprising eight dwellers and six tunnelers utilized monkey feces; (2) Aphodius eccoptus was the core species in dung beetle assemblages attracted to the feces during spring and summer; (3) the frequency of occurrence of every species was extremely high in spring; and (4) human-induced forest disturbance did not increase species richness or biomass in cool-temperate forests.

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Section: Introductionmentioning

confidence: 99%

Assessing the diversity of dung beetle assemblages utilizing Japanese monkey feces in cool-temperate forests

Enari

Koike

Sakamaki

2011

Journal of Forest Research

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“…Dung beetles (Coleoptera, Scarabaeidae) are of high ecological importance due to their role as decomposers of dung and other decaying organic material and their enhancement of ecological processes such as nutrient recycling and dispersal of seeds (e.g., Hanski and Cambefort 1991;Hanski and Krikken 1991;Andresen 2002a,b). Dung beetles are also used as an indicator group, because they reflect structural differences between habitats caused by forest type or human habitat modification (Klein 1989, Nummelin and Hanski 1989, Hill 1996, Davis and Sutton 1998, Davis et al 2001.…”

Section: Introductionmentioning

confidence: 99%

Changes of dung beetle communities from rainforests towards agroforestry systems and annual cultures in Sulawesi (Indonesia)

2005

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Little is known about how tropical land-use systems contribute to the conservation of functionally important insect groups, including dung beetles. In a study at the margin of Lore Lindu National Park (a biodiversity hotspot in Central Sulawesi, Indonesia) dung-beetle communities were sampled in natural forest, young secondary forest, agroforestry systems (cacao plantations with shade trees) and annual cultures (maize fields), each with four replicates (n ¼ 16 sites). At each site we used 10 pitfall traps, baited with cattle dung, along a 100 m transect for six 3-day periods. The number of trapped specimens and species richness at the natural forest sites was higher than in all land-use systems, which did not significantly differ. Each land-use system contained, on average, 75% of the species richness of the natural forest, thereby indicating their importance for conservation. However, a two-dimensional scaling plot based on NESS indices (m ¼ 6) indicated distinct dung beetle communities for both forest types, while agroforestry systems and annual cultures exhibited a pronounced overlap. Mean body size of dung beetles was not significantly influenced by land-use intensity. Five of the six most abundant dung beetle species were recorded in all habitats, whereas the abundance of five other species was significantly related to habitat type. Mean local abundance and number of occupied sites were closely correlated, further indicating little habitat specialisation. The low dung beetle diversity (total of 18 recorded species) may be due to the absence of larger mammals in Sulawesi during historical times, even though Sulawesi is the largest island of Wallacea. In conclusion, the dung beetle fauna of the lower montane forest zone in Central Sulawesi appears to be relatively robust to man-made habitat changes and the majority of species did not exhibit strong habitat preferences.

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“…Both species have been reported along the Indonesia-MalaysiaThailand borders but not within Thailand. 11,15 This finding will shed light on the missing link of dung beetle species in Thailand, and will be of significance to the study of the geographical distribution of dung beetles. The discovery of two new species in the genus Onthophagus, once confirmed, will add to the list of dung beetles found in tropical rain forests.…”

Section: Mean Number Of Individuals ( X ± Se ) Mean Number Of Indivmentioning

confidence: 83%

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Boonrotpong¹,

Sotthibandhu²,

Pholpunthin³

2004

ScienceAsia

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The species composition of dung beetles in primary forest and secondary forest at Ton Nga Chang Wildlife Sanctuary, Songkhla province, southern Thailand, was compared. Traps baited with pig dung were placed along line transects running through the two forest types. Species diversity and abundance of dung beetles were examined every 2 months from April 1999 to May 2000. Species diversity of dung beetles was significantly higher in the primary forest than in the secondary forest. Seven out of 20 species were found exclusively in the primary forest, namely Microcopris reflexus, Oniticellus tessellatus, Onthophagus near pilularius, O. taeniatus, O. ventralis, O. sp.3 and O. sp.4. Differences in forest structure, native animals present, and physical factors were suggested to be the factors determining species composition in the two forests. More individuals were trapped in the dry season than in the wet season in both forest types. However, seasonal effects on species diversity were not found. Tiniocellus sarawacus and Microcopris reflexus, were recorded for the first time in Thailand. Onthophagus sp.1 and O. sp.2 are expected to be new to science.

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CHAPTER 10. Dung Beetles in Tropical Forests in South-East Asia

Cited by 71 publications

References 0 publications

Assessing the diversity of dung beetle assemblages utilizing Japanese monkey feces in cool-temperate forests

Assessing the diversity of dung beetle assemblages utilizing Japanese monkey feces in cool-temperate forests

Changes of dung beetle communities from rainforests towards agroforestry systems and annual cultures in Sulawesi (Indonesia)

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