Richness and composition of tiger moths (Erebidae: Arctiinae) in a Neotropical savanna: are heterogeneous habitats richer in species?

Moreno, Carolina; Cianciaruso, Marcus V.; Sgarbi, Luciano Fabris; Ferro, Viviane Gianluppi

doi:10.1016/j.ncon.2014.09.006

Cited by 10 publications

(10 citation statements)

References 21 publications

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“…The main environmental variables retained by the forward selection procedure were the richness of woody plants and the herbaceous cover. As demonstrated by other authors, the plant species richness (sometimes indicated as the environmental heterogeneity, Stein et al, 2014), is the main driver of animal species richness and composition among communities (Moreno et al, 2014;Stein et al, 2014). The richness of woody plants and the herbaceous cover are important in structuring the vegetation gradient that occurs in the Cerrado biome (Brazilian savanna) (Oliveira-Filho & Ratter, 2002).…”

Section: Discussionmentioning

confidence: 93%

“…They feed on a wide variety of plants, including grasses, herbs, shrubs, and trees (Weller et al., ; Kitching et al., ; Hilt & Fiedler, ; Singer & Bernays, ; Weller et al., ), and the majority (mainly the subtribes Phaegopterina, Euchromiina and Ctenuchina, Zaspel et al., ) of them include in their diet, plants that possess secondary compounds (mainly pyrrolizidine alkaloids, PAs) (Hartmann, ; Zaspel et al., ) that make them unpalatable to some natural enemies (Bowers, ). In general, Arctiini species can occupy a wide variety of vegetation types (Hilt & Fiedler, ; Moreno et al., ). Thus, we believe that they could be mainly limited by their dispersal capabilities.…”

Section: Introductionmentioning

confidence: 99%

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Plant species richness as the main driver of moth metacommunities

Moreno

Landeiro

Ferro

2016

Ecological Entomology

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1. Ecologists have recognised several factors that may explain the distribution of species in a metacommunity. These factors may be related to the dispersal of individuals among the patches and environmental conditions. 2. Here, we attempted to determine which of the four different metacommunity frameworks (patch dynamics, mass effect, neutral processes, and species sorting) explain the distribution of Arctiinae moths in Brazilian savanna areas with different tree species richness. 3. The Arctiinae moths were categorised as habitat specialists or generalists, common or rare, and belonging to the tribes Arctiini and Lithosiini. We hypothesized that environmental variables best explain the abundance and occurrence of habitat specialist species, common species, and members of Lithosiini; whereas spatial processes are more closely related to habitat generalists, rare species, and members of Arctiini. 4. Contrary to our expectations, we found that the species sorting (mainly dictated by the species richness of trees) best explained the variation in abundance and occurrence of the majority of species groups. Spatial processes (more related to patch dynamics, mass effect, and neutral), although they were significantly related to some species groups, were not strong enough to explain the distribution of these species in the study area. 5. The plant species richness was the most important environmental condition, related to moth species niches. Therefore, species sorting best explained the distribution of the species of Arctiinae in the Brazilian savanna.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Plant species richness as the main driver of moth metacommunities

Moreno

Landeiro

Ferro

2016

Ecological Entomology

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“…Almost all previous studies of tiger moths in Neotropical South America were made at low latitude and focused on describing the species richness and composition and their responses to biotic and abiotic factors at a regional or local-scale [ 15 – 19 , 27 – 29 , 51 – 56 ], with some exceptions that encompass more than one ecoregion [ 20 , 57 ]. Furthermore, as far as we know no study until now has tested how the species richness and composition of tiger moths from Neotropical South America varies among regions at higher latitudes.…”

Section: Discussionmentioning

confidence: 99%

Changes in Species Richness and Composition of Tiger Moths (Lepidoptera: Erebidae: Arctiinae) among Three Neotropical Ecoregions

2016

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Paraná, Yungas and Chaco Serrano ecoregions are among the most species-rich terrestrial habitats at higher latitude. However, the information for tiger moths, one of the most speciose groups of moths, is unknown in these ecoregions. In this study, we assess their species richness and composition in all three of these ecoregions. Also we investigated whether the species composition of tiger moths is influenced by climatic factors and altitude. Tiger moth species were obtained with samples from 71 sites using standardized protocols (21 sites were in Yungas, 19 in Paraná and 31 in Chaco Serrano). Rarefaction-extrapolation curves, non-parametric estimators for incidence and sample coverage indices were performed to assess species richness in the ecoregions studied. Non metric multidimensional scaling and adonis tests were performed to compare the species composition of tiger moths among ecoregions. Permutest analysis and Pearson correlation were used to evaluate the relationship among species composition and annual mean temperature, annual temperature range, annual precipitation, precipitation seasonality and altitude. Among ecoregions Paraná was the richest with 125 species, followed by Yungas with 63 species and Chaco Serrano with 24 species. Species composition differed among these ecoregions, although Yungas and Chaco Serrano were more similar than Paraná. Species composition was significantly influenced by climatic factors and altitude. This study showed that species richness and species composition of tiger moths differed among the three ecoregions assessed. Furthermore, not only climatic factors and altitude influence the species composition of tiger moths among ecoregions, but also climatic seasonality at higher latitude in Neotropical South America becomes an important factor.

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“…Geralmente hábitats estruturalmente complexos apresentam maior riqueza de espécies (Bazzaz, 1975;Moreno et al, 2014), como predito pela hipótese da complexidade ambiental (Bazzaz, 1975), já que fornecem maior variedade de microhábitats, amplitude microclimática e mais oportunidades de refúgios contra os inimigos naturais (Bazzaz, 1975;Price et al, 1980;Sanders et al, 2008), possibilitando que maior quantidade de espécies coexista e, consequentemente, que a diversidade alfa aumente.…”

Section: Discussionunclassified

Riqueza e composição de Arctiinae (Lepidoptera, Erebidae) em cinco Unidades de Conservação do Cerrado

Moreno

Magalhães

Rezende

et al. 2015

Iheringia, Sér. Zool.

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ABSTRACT. Richness and composition of Arctiinae (Lepidoptera, Erebidae) in five Conservation Units in the Cerrado biome. The Cerrado biome contains about 50% of the Brazilian Arctiinae moths. However, northern region of the Cerrado is under-sampled for these insects, where there are more preserved areas. Here, we described the richness, composition, abundance, and beta diversity of Arctiinae in different vegetation types in five Protected Areas in the Cerrado northeast. We found 83 species, almost 78% of them occurred in one Protected Area. Less preserved localities had higher species richness. This result can be explained as a response to frequent intermediate disturbances in the landscape of these places. Forested areas were richer in species, supporting the environmental heterogeneity hypothesis. Compositional similarity was low among protected areas and among vegetation types. More complete inventories are required to assess which factors are influencing species richness and composition patterns of Arctiinae moths in these localities and thus guide future conservation actions. KEYWORDS. Protected Areas, inventories, moths.RESUMO. Cerca de 50% da diversidade de mariposas Arctiinae do Brasil está no Cerrado. Contudo, a fauna desses insetos é extremamente subamostrada na região norte do bioma, onde localizam-se as áreas de vegetação mais preservadas. Diante disso, este trabalho teve como objetivos descrever a riqueza, abundância, composição e diversidade beta de Arctiinae em diferentes fitofisionomias de cinco Unidades de Conservação localizadas no nordeste do Cerrado. Foram amostradas 83 espécies, das quais quase 78% ocorreram em apenas uma Unidade de Conservação. As localidades com menor grau de preservação apresentaram maior riqueza de espécies, o que pode ser explicado como uma resposta a distúrbios intermediários na paisagem destes locais. As fitofisionomias florestais foram mais ricas em espécies, corroborando a hipótese da heterogeneidade ambiental. De maneira geral, a similaridade da fauna foi baixa tanto entre as Unidades de Conservação quanto entre as fitofisionomias. Inventários mais completos precisam ser feitos a fim de avaliarmos que fatores estão influenciando os padrões de riqueza e composição de Arctiinae nestas localidades de Cerrado e, assim, subsidiar futuras ações de conservação. PALAVRAS-CHAVE.Áreas protegidas, inventários, mariposas.

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Richness and composition of tiger moths (Erebidae: Arctiinae) in a Neotropical savanna: are heterogeneous habitats richer in species?

Cited by 10 publications

References 21 publications

Plant species richness as the main driver of moth metacommunities

Plant species richness as the main driver of moth metacommunities

Changes in Species Richness and Composition of Tiger Moths (Lepidoptera: Erebidae: Arctiinae) among Three Neotropical Ecoregions

Riqueza e composição de Arctiinae (Lepidoptera, Erebidae) em cinco Unidades de Conservação do Cerrado

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