Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Vertical and temporal variability in the probability of detection of fruit-feeding butterflies and moths (Lepidoptera) in tropical forest

Full text
Author(s):
Ribeiro, Danilo Bandini [1, 2] ; Williams, Matthew R. [2] ; Specht, Alexandre [3] ; Freitas, Andre V. L. [4]
Total Authors: 4
Affiliation:
[1] Univ Fed Mato Grosso do Sul, Ctr Ciencias Biol, POB 549, BR-79070900 Campo Grande, MS - Brazil
[2] Dept Parks & Wildlife, Sci & Conservat Div, Locked Bag 104, Bentley Delivery Ctr, Perth, WA 6983 - Australia
[3] Embrapa Cerrados, BR 020 Km 18 Cx Postal 08223, BR-73310970 Planaltina, DF - Brazil
[4] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, POB 6109, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: AUSTRAL ENTOMOLOGY; v. 55, n. 1, p. 112-120, FEB 2016.
Web of Science Citations: 12
Abstract

One important source of variation present in all biodiversity sampling protocols is species detection probability (i.e. the probability of observing a species, given that it is present at a site). In tropical forests, many species have very low probability of detection, and thus they can be easily overlooked. Measuring the detection probability (detectability) of these species is important to determine the sampling effort required to accurately record them. In the present study, the variation of detectability of fruit-feeding butterflies and moths between strata (understory vs. canopy), temporally across sampling months, and in relation to observed abundance were examined in the Amazon and Atlantic forests using models of logistic regression. These results enabled the estimation of the sampling effort required to detect a given fraction of the total assemblage. Species detectability was positively correlated with observed abundance for both butterflies and moths. In the Amazon, most species were more detectable in a specific stratum (canopy or understory). Biblidinae, Charaxinae and Satyrini showed temporal variation in detection probability in Atlantic Forest, with distinct peaks during July-August, November, and March. In contrast, Brassolini and Coeini showed peak detectability in January and March, respectively. The vertical and temporal variation in detection probability means that sampling effort must be applied strategically to the correct seasons and strata to improve the accuracy of results. The estimated minimum sampling effort to detect 70% of the species present in these tropical forests is 428 trap-days in Atlantic Forest and 1435 trap-days in the Central Amazon forest. (AU)

FAPESP's process: 11/50225-3 - Natural history, phylogeny and conservation of Neotropical Lepidoptera
Grantee:André Victor Lucci Freitas
Support type: BIOTA-FAPESP Program - Regular Research Grants
FAPESP's process: 03/11697-0 - Effects of anthropic activity and forest fragmentation on the lepidoptera guild
Grantee:Danilo Bandini Ribeiro
Support type: Scholarships in Brazil - Master