liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Effect of Tree-Fall Gaps on Fruit-Feeding Nymphalidae Assemblages in a Peruvian Rainforest
Linköping University, Department of Physics, Chemistry and Biology.
2010 (English)Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
Abstract [en]

Tropical rainforests are among the most complex and diverse ecosystems, composed of a mosaic of shady understory under the closed canopy and tree-fall gaps of varying sizes and age. The light reaching the forest floor favors the recruitment of fast growing plant species and provide food resources for other animal species including butterflies. The Nymphalidae are the most species rich butterfly family in the tropics, and are ideal bioindicators. We investigated the effect of the tree-fall gaps on the assemblages of fruit feeding Nymphalidae. We used fruit-bait traps in 15 tree-fall gaps from 100 to 1000 m2 and 15 in undisturbed understory, from July until November, in a lowland tropical rainforest in southeastern Peru. We found distinct differences in butterfly assemblages between tree-fall gaps and understory, with a higher number of species in gaps, associated with a higher level light. We identified several species mostly found in one of the habitats, and generalist species. The heterogeneity was large within the same site both in gaps and in the understory. The difference between butterfly assemblages increased with gap size. Butterfly species were mainly associated with the absence of vines in the gaps, and found in large and light gaps. We distinguished several species according to their preferences for the vegetation structure, light level and size of gaps. We concluded that one example that maintains the biodiversity in the tropical rainforest is the formation of tree fall gaps of different sizes resulting in different species assemblages.

Place, publisher, year, edition, pages
2010. , 17 p.
Keyword [en]
Intermediate disturbances, Gap dynamics, Amazonian Lepidoptera
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-57634ISRN: LITH-IFM-A-EX--2309--SEOAI: diva2:326958
2010-05-28, Linköpings unviersitet, 13:55 (English)
Life Earth Science
Available from: 2010-06-28 Created: 2010-06-24 Last updated: 2011-04-26Bibliographically approved

Open Access in DiVA

Effect of Tree-Fall Gaps on Fruit-Feeding Nymphalidae Assemblages in a Peruvian Rainforest(764 kB)215 downloads
File information
File name FULLTEXT01.pdfFile size 764 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Department of Physics, Chemistry and Biology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 215 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 105 hits
ReferencesLink to record
Permanent link

Direct link