Sampling performance of bait traps in high Andean fruit-feeding butterflies

Álvarez, Carlos Federico; Giraldo, Alejandra Clavijo; Uribe, Sandra; Pyrcz, Tomasz W.; Iserhard, Cristiano Agra; Freitas, André Victor Lucci; Marín, Mario Alejandro

doi:10.1080/23766808.2021.2004802

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…A sampling unit composed of four standard Van Someren-Rydon (VSR) traps was installed in each locality. Traps were placed about 1.5 meters above ground and separated 100 m from each other, baited alternately with fermented bananas (mixture of mature banana hand mashed with rum and sugar) and rotten sh (trout) (for more details, see Freitas et al 2014 andÁlvarez et al 2021). Traps were revised three times over four days.…”

Section: Study Site and Eldworkmentioning

confidence: 99%

Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

Álvarez

Freitas

Iserhard

et al. 2023

Preprint

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The high Andean mountains are ecosystems subject to high human pressure activities, resulting in disturbed areas increasingly dominating the landscapes. However, there needs to have more knowledge about the contributions of different vegetation coverages and species to global diversity at the local level. For three consecutive years, we studied a guild of fruit-feeding butterflies in four different land covers (cloud forests, paramo, mixed anthropogenic habitats, and cattle pastures) in the northern Andes in Colombia, analyzing the diversity and structure of the butterfly assemblage in the region. The assembly showed significant differences between land covers. The mixed anthropogenic habitat was the richest in order q1 and q2 of diversity, and the cloud forest contained the higher abundance and species richness. Abundance shifted from forest to pasture, significantly reducing diversity in cattle pastures, with cloud forest and paramo containing the key endemic species. These results indicate the value of landscape diversity in providing resources and conditions required for the diversity conservation of high Andean butterflies.

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Section: Study Site and Eldworkmentioning

confidence: 99%

Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

Álvarez

Freitas

Iserhard

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

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“…Due to the widespread application of baited pitfall traps in biodiversity studies worldwide, it is essential to quantify possible sampling biases that may affect their performance and limit our interpretation of results from dung beetles surveys. Bait quality (Álvarez et al, 2021 ; Souza et al, 2015 ), desiccation resistance (Lucci Freitas et al, 2014 ; Newton & Peck, 1975 ), trap size (LeBlanc et al, 2021 ), and even the position within the pitfall traps can all influence attraction (Lobo et al, 1988 ). Beyond these factors, there are also idiosyncratic species responses due to food preferences (Almeida et al, 1998 ; Larsen et al, 2006 ; Noriega, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Bait attractiveness changes community metrics in dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae)

Bach

Mateus

Peres

et al. 2023

Ecology and Evolution

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Species relative abundance (SRA) is an essential attribute of biotic communities, which can provide an accurate description of community structure. However, the sampling method used may have a direct influence on SRA quantification, since the use of attractants (e.g., baits, light, and pheromones) can introduce additional sources of variation in trap performance. We tested how sampling aided by baits affect community data and therefore alter derived metrics. We tested our hypothesis on dung beetles using data from flight interception traps (FITs) as a baseline to evaluate baited pitfall trap performance. Our objective was to assess the effect of bait attractiveness on estimates of SRA and assemblage metrics when sampled by pitfall traps baited with human feces.Dung beetles were sampled at three terra firme primary forest sites in the Brazilian Amazon. To achieve our objective, we (i) identified species with variable levels of attraction to pitfall baited with human feces; (ii) assessed differences in SRA; and (iii) assessed the effect of bait on the most commonly used diversity metrics derived from relative abundance (Shannon and Simpson indices). We identified species less and highly attracted to the baits used, because most attracted species showed greater relative abundances within baited pitfall traps samples compared with our baseline. Assemblages sampled by baited pitfall traps tend to show lower diversity

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Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

Álvarez,

Freitas,

Iserhard

et al. 2024

J Insect Conserv

View full text Add to dashboard Cite

The high Andean mountains are ecosystems subject to high human pressure activities, resulting in disturbed areas increasingly dominating the landscapes. However, there needs to have more knowledge about the contributions of different vegetation coverages and species to global diversity at the local level. For three consecutive years, we studied a guild of fruit-feeding butterflies in four different land covers (cloud forests, paramo, mixed anthropogenic habitats, and cattle pastures) in the northern Andes in Colombia, analyzing the diversity and structure of the butterfly assemblage in the region. The assembly showed significant differences between land covers. The mixed habitat was the most diverse in order q1 (exponential of Shannon entropy) and q2 (inverse of Gini-Simpson dominance index) diversity, and the cloud forest contained the higher abundance and species richness. Abundance decreased from forest to pasture, significantly reducing diversity in pastures, with cloud forest and paramo containing the key endemic species. These results indicate the value of landscape diversity in providing resources and conditions required for the diversity conservation of high Andean butterflies.

show abstract

Sampling performance of bait traps in high Andean fruit-feeding butterflies

Cited by 4 publications

References 23 publications

Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

Bait attractiveness changes community metrics in dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae)

Structure of the assemblage of fruit-feeding butterflies in a high Andean anthropogenic landscape

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