Spatial structure of rainforest termites: Two matched pioneering cross?continental case studies

نویسندگان

چکیده

Termites are vital parts of the soil biota in tropical regions, but their spatial ecology is barely studied. Here, termites were surveyed two one-hectare plots, to investigate patterns soil-dwelling old growth rainforest. Ecological interactions tested as follows: (1) environmental relationships; (2) termite feeding groups; and (3) predatory ants. The studies Africa (Gabon, Ivindo) Asia (Malaysia, Sabah, Danum Valley). In both locations, wood-feeding had an aggregated structure at fine scales, while humus-feeding a continuous distribution. Environmental variables similar, only associations consistent across sites. Termite groups along humification gradient consistently disassociated. Significant detected between ants sites: however, scale direction differed. This shows that termite-mediated ecosystem processes associated with wood- provided similar for intensity varied due differences plots. Competition functional level may be important interaction, nature which affected by resource availability, more limiting termites. We hypothesize predation important, these relationships varies study All preliminary need fully replicated studies, future constrained sampling effort being so great even single survey. Abstract French available online material. Les sont des éléments vitaux du biote sol dans les régions tropicales, mais leur écologie spatiale est à peine étudiée. Ici, ont été étudiés deux parcelles d'un hectare, pour étudier modèles spatiaux vivant le la forêt tropicale ancienne. écologiques testées étaient: 1) relations environnementales; 2) groupes d'alimentation de termites; 3) et fourmis prédatrices. études se déroulées en Afrique (Gabon Asie (Malaisie, Valley) cantly. Dans endroits, nourrissant bois avaient une agrégée échelles fines, tandis que d'humus distribution continue. environnementales étaient similaires, seules cohérentes entre long d'humification systématiquement dissociés. Des significatives détectées prédatrices sites, échelle différaient. Nous montrons processus écosystémiques médiés par associés aux fournis spatiales d'humus, l'intensité variait raison différences parcelles. La concurrence au niveau fonctionnel peut être interaction importante, dont affectée disponibilité ressources, ce qui plus limitant nourrissent bois. émettons l'hypothèse prédation ces varie d'étude. Tous préliminaires doivent testés entièrement répliquées. futures peuvent limitées l'effort d'échantillonnage étant si grand même seule enquête. data support findings this openly Dryad Digital Repository: https://doi.org/10.5061/dryad.cz8w9gj38 (Scholtz al. 2021). Please note: publisher not responsible content or functionality any supporting information supplied authors. Any queries (other than missing content) should directed corresponding author article.

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ژورنال

عنوان ژورنال: Biotropica

سال: 2021

ISSN: ['0006-3606', '1744-7429']

DOI: https://doi.org/10.1111/btp.12959