Diversity and trait patterns of moths at the edge of an Amazonian rainforest

Nino, Luisa Maria Jaimes; Mörtter, Rolf; Brehm, Gunnar

doi:10.1007/s10841-019-00168-4

Cited by 6 publications

(3 citation statements)

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“…Oftentimes, variation in eco-morphological traits reflects ecosystem processes and thereby reveals stressors or constraints acting upon community assembly and ecosystem functioning [ 31 ]. Yet only a few studies have thus far examined biometrical differences of moths along environmental gradients in tropical rainforests (e.g., vertical stratification [ 32 ]; elevational gradients [ 22 , 26 , 33 ]; primary forest and margins [ 25 ]). Even fewer studies have attempted to trace such patterns along tropical land-use gradients (for Amazonian dung beetles [ 34 ]).…”

Section: Discussionmentioning

confidence: 99%

“…For the present study, we concentrated on two focal groups (Erebidae-Arctiinae and Geometridae) for which taxonomic information is sufficient to achieve species identifications and which are numerous enough in light-trap samples from the region to produce statistically meaningful samples. Arctiinae (lichen and tiger moths) and Geometridae (looper moths) have successfully served as model organisms in a range of biodiversity studies in the Neotropics [ 25 , 26 ].…”

Section: Methodsmentioning

confidence: 99%

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Trait Variation in Moths Mirrors Small-Scaled Ecological Gradients in A Tropical Forest Landscape

Rabl

Alonso‐Rodríguez

Brehm

et al. 2020

Insects

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Along environmental gradients, communities are expected to be filtered from the regional species pool by physical constraints, resource availability, and biotic interactions. This should be reflected in species trait composition. Using data on species-rich moth assemblages sampled by light traps in a lowland rainforest landscape in Costa Rica, we show that moths in two unrelated clades (Erebidae-Arctiinae; Geometridae) are much smaller-sized in oil palm plantations than in nearby old-growth forest, with intermediate values at disturbed forest sites. In old-growth forest, Arctiinae predominantly show aposematic coloration as a means of anti-predator defense, whereas this trait is much reduced in the prevalence in plantations. Similarly, participation in Müllerian mimicry rings with Hymenoptera and Lycidae beetles, respectively, is rare in plantations. Across three topographic types of old-growth forests, community-weighted means of moth traits showed little variation, but in creek forest, both types of mimicry were surprisingly rare. Our results emphasize that despite their mobility, moth assemblages are strongly shaped by local environmental conditions through the interplay of bottom–up and top–down processes. Assemblages in oil palm plantations are highly degraded not only in their biodiversity, but also in terms of trait expression.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Trait Variation in Moths Mirrors Small-Scaled Ecological Gradients in A Tropical Forest Landscape

Rabl

Alonso‐Rodríguez

Brehm

et al. 2020

Insects

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“…The study site is located in the westernmost Amazonian Basin, eastern central Peru, department Huánuco, at the ACP Panguana station (−9.613393°N −74.935911°E; 222 m; see also [27]), the fogged target trees were all situated in a radius of less than 2000 metres around the station. Collecting was performed in the late afternoon, betwen 17 and 19 o clock, from 24 th of November to 8 th of December 2017.…”

Section: Methodsmentioning

confidence: 99%

DNA Barcoding of fogged caterpillars in Peru: A novel approach for unveiling host-plant relationships of tropical moths (Insecta, Lepidoptera)

Hausmann

Diller

Morinière

et al. 2019

Preprint

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17A total of 130 lepidopteran larvae were selected from 37 fogging samples at the Panguana 18 station, district Yuyapichis, province Puerto Inca, department Huánuco, Peru. Target trees 19 were pre-identified and subsequently submitted to molecular confirmation of identity with 20 three markers (rbcL, psbA and trnL-F). Identification of 119 lepidopteran larvae (92 species) 21 was successful through DNA barcoding: Comparison of COI barcodes with the reference 22 database of adult moths resulted in 65 (55%) matches at species level, 32 (27%) at genus level 23 and 19 (16%) at subfamily or family level. Three larvae could not be assigned to a family. For 24 these larvae the fogged target tree now suggests a potential host-plant relationship. Molecular 25 gut content analysis, based on High-Throughput-Sequencing was successfully tested for ten 26 larvae corroborating feeding on the target plant in some cases but elucidating several other 27 cases of potential 'alternative feeding'. We propose a larger-scale approach using this rapid 28 and efficient method including molecular gut-content analyses for comprehensively testing 29 the ratio of 'alternative feeders' and pitfalls caused by collateral fogging of larvae from 30 neighboring trees. 31 32

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Drastic loss of insects (Lepidoptera: Geometridae) in urban landscapes in a tropical biodiversity hotspot

et al. 2021

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Diversity and trait patterns of moths at the edge of an Amazonian rainforest

Cited by 6 publications

References 61 publications

Trait Variation in Moths Mirrors Small-Scaled Ecological Gradients in A Tropical Forest Landscape

Trait Variation in Moths Mirrors Small-Scaled Ecological Gradients in A Tropical Forest Landscape

DNA Barcoding of fogged caterpillars in Peru: A novel approach for unveiling host-plant relationships of tropical moths (Insecta, Lepidoptera)

Drastic loss of insects (Lepidoptera: Geometridae) in urban landscapes in a tropical biodiversity hotspot

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