Species Composition of Termites (Isoptera) in Different Cerrado Vegetation Physiognomies

Oliveira, Danilo Elias de; Carrijo, Tiago F.; Brandão, Divino

doi:10.13102/sociobiology.v60i2.190-197

Cited by 15 publications

(7 citation statements)

References 22 publications

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“…Overlap with neighbouring colonies of different species occurred more frequently when resource suitability measures were very high or very low. Our results could explain the absence (Oliveira et al ) and also ‘aberrant’ inverse (Araújo et al ) relations between termite abundance and resource availability. The inverse relations could occur when colonies retract their foraging range in higher quality habitats, potentially impairing sampling detection and producing false low abundance records (e.g.…”

Section: Discussionsupporting

confidence: 57%

“…at a regional scale, we suggest that the results of the present study could help to understand some common conflicting patterns of termite diversity: Eggleton et al () found a negative trend between termite generic diversity and net primary productivity (NPP) in tropical regions. However, in Brazilian biomes, termite diversity has been reported to be positively related to plant productivity in the semiarid ‘Caatinga’ (scrub forest; Melo & Bandeira ), negatively with increment of resource availability in Atlantic rainforest (Araújo et al ), and no pattern was observed in the ‘cerrado’ (Brazilian savanna; Oliveira et al ). The possible mechanism behind these conflicting results in termite diversity could be the regulation of foraging distance as a response of resource availability.…”

Section: Discussionmentioning

confidence: 99%

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Resource suitability modulating spatial co‐occurrence of soil‐forager termites (Blattodea: Termitoidea)

et al. 2016

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Resource can regulate animal foraging range, which in turn determines the chances of species co-occurrence. Here, we addressed the question of whether resource determines the co-occurrence of soil-forager termite species (i.e. those foraging in subterranean tunnels). Eight quadrats (4 × 4 m) were marked in seven sites of Brazilian Atlantic rainforests, giving a total area sampled of 896 m 2 . Inside each quadrat, we measured the co-occurrence of soil forager species and the resource suitability (N:C ratio of the soil and litter biomass). The number of records of more than one soil-forager termite species at a single foraging spot, relative to the total number of foraging spots detected in each forest, was taken as a surrogate for spatial co-occurrence. We tested whether termite co-occurrence was mediated by random or nonrandom processes. Data were subjected to linear regression to test how the termite species co-occurrence responds to resources. We compared this method with a null model analysis. Soil-forager termites comprised 885 records, 20 species and 14 genera. From those records, 29% indicated species co-occurrence. Co-occurrence was not random: occurred more frequently when resource suitability was very high or very low. This result suggests an optimised use of space by termite communities.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Resource suitability modulating spatial co‐occurrence of soil‐forager termites (Blattodea: Termitoidea)

et al. 2016

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“…The increment of soil litter biomass has been shown to decrease termite richness and abundance in a Brazilian Atlantic Rainforest (Araújo et al, 2007). In turn, no effect has been observed in Brazilian "Cerrado" (Oliveira et al, 2013).…”

Section: Discussionmentioning

confidence: 90%

“…The occurrence of particular species per plot, quadrants or transect is frequently used as a single record of abundance independently of how many times this species has been recorded in the sampled area (e.g. see Oliveira et al, 2013). However, regardless whether individuals collected belong to the same or different colonies, the number of records per area (plot, quadrants or transect) provide an overview of the rate of the habitat use by these individuals and therefore, how much termites contribute to ecosystem functioning in terms of nutrient cycling and soil properties.…”

Section: Termite Communitymentioning

confidence: 99%

The impact of edge effect on termite community (Blattodea: Isoptera) in fragments of Brazilian Atlantic Rainforest

et al. 2016

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Habitat fragmentation is considered to be one of the biggest threats to tropical ecosystem functioning. In this region, termites perform an important ecological role as decomposers and ecosystem engineers. In the present study, we tested whether termite community is negatively affected by edge effects on three fragments of Brazilian Atlantic Rainforest. Termite abundance and vegetation structure were sampled in 10 transects (15 × 2 m), while termite richness, activity, and soil litter biomass were measured in 16 quadrants (5 × 2 m) at forest edge and interior of each fragment. Habitat structure (i.e. number of tree, diameter at breast height and soil litter biomass) did not differ between forest edge and interior of fragments. Termite richness, abundance and activity were not affected by edge effect. However, differences were observed in the β diversity between forest edge and interior as well as in the fragments sampled. The β diversity partitioning indicates that species turnover is the determinant process of termite community composition under edge effect. Our results suggest that conservation strategies should be based on the selection of several distinct sites instead of few rich sites (e.g. nesting).Keywords: β diversity, habitat fragmentation, Termitoidea, species turnover.O impacto do efeito de borda na comunidade de cupins (Blattodea: Isoptera) em fragmentos de florestas da Mata Atlântica ResumoA fragmentação do habitat é considerada uma das maiores ameaças para o funcionamento do ecossistema tropical. Nesta região, os cupins desempenham um papel ecológico importante como decompositores e engenheiros do ecossistema. No presente estudo, testamos se comunidades de cupins são negativamente afetadas pelo efeito de borda em três fragmentos de Mata Atlântica. Para isso, foram amostrados a abundância de cupins e a estrutura da vegetação em 10 transectos (15 × 2 m), enquanto a riqueza, abundância de cupins e biomassa da serrapilheira foram amostrados em 16 parcelas (5 × 2 m) na borda e no interior de cada um dos três fragmentos. A estrutura do habitat (número de árvores, diâmetro à altura do peito e biomassa da serrapilheira) não diferiu entre a borda e o interior dos fragmentos. A riqueza, abundância e atividade dos cupins também não foram afetados pelo efeito de borda. No entanto, foram observadas diferenças na diversidade β entre borda e interior dos fragmentos, bem como nos fragmentos amostrados. O particionamento da diversidade β indicou que a substituição de espécies ("turnover") é o processo determinante da composição da comunidade de cupins sob efeito de borda. Nossos resultados sugerem que as estratégias de conservação devem ser baseadas na seleção de locais distintos em vez de poucos locais (via processo de aninhamento -"nesting").Palavras-chave: diversidade β, fragmentação de habitat, Termitoidea, substituição de espécies (turnover).

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“…Distances of 100 m between each transect and 50 m from the edge of the fragment was maintained. The number of plots where a given species was present was used as estimation for relative abundance (Jones, 2000;Bignell & Eggleton, 2000;Oliveira et al, 2013). As standard time scale, each plot was explored for 1h/person, making it possible to collect termites in all potential nesting and foraging sites.…”

Section: Termite Samplingmentioning

confidence: 99%

Termite assemblages in dry tropical forests of Northeastern Brazil: Are termites bioindicators of environmental disturbances?

Viana‐Júnior¹,

Reis²,

Costa³

et al. 2014

Sociobiology

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Species Composition of Termites (Isoptera) in Different Cerrado Vegetation Physiognomies

Cited by 15 publications

References 22 publications

Resource suitability modulating spatial co‐occurrence of soil‐forager termites (Blattodea: Termitoidea)

Resource suitability modulating spatial co‐occurrence of soil‐forager termites (Blattodea: Termitoidea)

The impact of edge effect on termite community (Blattodea: Isoptera) in fragments of Brazilian Atlantic Rainforest

Termite assemblages in dry tropical forests of Northeastern Brazil: Are termites bioindicators of environmental disturbances?

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