Butterfly Community Composition Across a Successional Gradient in a Human-disturbed Afro-tropical Rain Forest

Biotropica ◽  
2014 ◽  
Vol 46 (2) ◽  
pp. 210-218 ◽  
Author(s):  
Margaret Nyafwono ◽  
Anu Valtonen ◽  
Philip Nyeko ◽  
Heikki Roininen
Keyword(s):  
Community Composition ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Butterfly Community ◽  
Successional Gradient

scholarly journals Spatial and temporal variation in community composition of herbivorous insects on Neoboutonia macrocalyx in a primary tropical rain forest

2013 ◽  
Vol 29 (3) ◽  
pp. 229-241 ◽  
Author(s):  
Kaisa Heimonen ◽  
Jeremiah S. Lwanga ◽  
Marko Mutanen ◽  
Tommi Nyman ◽  
Heikki Roininen
Keyword(s):  
Species Richness ◽  
Temporal Variation ◽  
Community Composition ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Spatial And Temporal Variation ◽  
Herbivorous Insects ◽  
Herbivorous Insect ◽  
Insect Communities ◽  
Study Sites

Abstract:Spatial and temporal variation of tropical insect communities has rarely been studied, although such variation influences estimates of global species richness. Therefore, we compared spatial and temporal variation of herbivorous insect communities on Neoboutonia macrocalyx trees among seven sites over 1 y in a primary tropical rain forest in Kibale National Park, Uganda. The distance between the study sites varied from 4.8 to 31.2 km and altitudinal differences ranged from 20 to 242 m. Permutational multivariate analysis of variance (PERMANOVA) revealed significant spatial changes in community composition of the herbivorous insects and study sites differed also in insect abundance (6.9–26.2 individuals m−2 of leaf area). This is likely to be caused by differences in vegetation, altitude and microclimate among the study sites. The similarity of insect species composition was negatively correlated with geographic and altitudinal distances among sites and positively correlated with the similarity of tree community composition. Species richness varied significantly between sampling dates, ranging from 33 to 41 species. Also community compositions changed between sampling dates, which likely follows from marked seasonal changes in climate and the phenology of other host plants used by the generalist insect species also living on Neoboutonia macrocalyx. In general our study supports the idea of high variability of herbivorous insect communities in primary rain forests even at a small spatial scale. This should be considered when estimations of insect biodiversity are made.

Tree community composition and vegetation structure predict butterfly community recovery in a restored Afrotropical rain forest

2015 ◽  
Vol 24 (6) ◽  
pp. 1473-1485 ◽  
Author(s):  
Margaret Nyafwono ◽  
Anu Valtonen ◽  
Philip Nyeko ◽  
Arthur Arnold Owiny ◽  
Heikki Roininen
Keyword(s):  
Community Composition ◽  
Vegetation Structure ◽  
Rain Forest ◽  
Community Recovery ◽  
Tree Community ◽  
Butterfly Community

The Effects of a Tropical rain Forest Cover on Airborne Gamma-Ray Spectrometry

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Enio B. Pereira ◽  
Daniel J.R. Nordemann
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Cover ◽  
Gamma Ray ◽  
Gamma Ray Spectrometry

Para solicitação de resumo, entrar em contato com editor-chefe ([email protected]). 

scholarly journals (5d RG-flow) trees in the tropical rain forest

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Marieke van Beest ◽  
Antoine Bourget ◽  
Julius Eckhard ◽  
Sakura Schäfer-Nameki
Keyword(s):  
Large Class ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Field Theories ◽  
Flavor Symmetry ◽  
Superconformal Field Theories ◽  
Hasse Diagrams ◽  
Flavor Symmetries ◽  
Rank 2 ◽  
Mass Deformation

Abstract 5d superconformal field theories (SCFTs) can be obtained from 6d SCFTs by circle compactification and mass deformation. Successive decoupling of hypermultiplet matter and RG-flow generates a decoupling tree of descendant 5d SCFTs. In this paper we determine the magnetic quivers and Hasse diagrams, that encode the Higgs branches of 5d SCFTs, for entire decoupling trees. Central to this undertaking is the approach in [1], which, starting from the generalized toric polygons (GTPs) dual to 5-brane webs/tropical curves, provides a systematic and succinct derivation of magnetic quivers and their Hasse diagrams. The decoupling in the GTP description is straightforward, and generalizes the standard flop transitions of curves in toric polygons. We apply this approach to a large class of 5d KK-theories, and compute the Higgs branches for their descendants. In particular we determine the decoupling tree for all rank 2 5d SCFTs. For each tree, we also identify the flavor symmetry algebras from the magnetic quivers, including non-simply-laced flavor symmetries.

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