Endemic insects from the Yungas of Argentina

Cuezzo, Fabiana; Grosso, Mercedes Lizarralde De; Navarro, Fernando; Szumik, Claudia

doi:10.11646/zootaxa.1576.1.5

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…In Argentina, it is located between 400 and 3000 m a.s.l., and it has a subtropical climate, with a dry season. The total annual rainfall is around 900–2000 mm, the mean temperature of the warmest month is approximately 22°C and the mean annual temperature is approximately 18°C with a cold season during April-November [ 33 , 36 ]. The Alto Paraná Atlantic forest, or “Paraná”, is an ecoregion located in southeastern Brazil, northeastern Argentina and eastern Paraguay.…”

Section: Methodsmentioning

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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Section: Methodsmentioning

confidence: 99%

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

2016

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“…Unfortunately, knowledge of the distribution and diversity of most ant species is largely incomplete or fragmented, which has precluded large-scale analyses (Economo et al, 2018). Research on ant fauna in subtropical forests of South America mostly studies the ant community structure at a single study area (Leponce et al, 2004;Cuezzo et al, 2007;Calcaterra et al, 2010;Hanisch et al, 2015Hanisch et al, , 2017Hanisch et al, , 2018, and explores the effects of grazing and fire disturbances on ant assemblages (Calcaterra et al, 2010(Calcaterra et al, , 2014, or the mechanisms that govern local assemblage structure (e.g., Calcaterra et al, 2008;Hanisch et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Andean and Atlantic forests constitute two mega diverse mountainous biomes that harbour many endemic species; they are one of the world's highest priorities for conservation (Myers et al ., 2000; Kappelle & Brown, 2001; Giraudo et al ., 2003; Whittaker et al ., 2005; Cuezzo et al ., 2007; Szumik et al ., 2012). These rainforests are separated by around 1,000 km of the Chaco xerophytic woodlands, and further north, by the Cerrado open savannas (Prado, 1993; Morrone, 2006).…”

Section: Introductionmentioning

confidence: 99%

Diversity of ground‐dwelling ants across three severely threatened South American subtropical forests: are diversity patterns influenced by spatial or climatic variables?

Calcaterra

Chifflet

Cuezzo

et al. 2021

Insect Conserv Diversity

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1. Understanding the spatial distribution of species sheds light on the biogeographical history, offers clues to the drivers of biodiversity and helps guide conservation strategies. In southern South America, Andean, Chaco and Atlantic forests drastically decreased their coverage in the last decades mainly by changes in land use.2. Ants represent an excellent model for macro-ecological studies that support evidence-based management policies. Unfortunately, little is known about ant distribution, diversity patterns and drivers in the southernmost portion of these three biomes.3. We surveyed ground-dwelling ants using baits and leaf-litter sieves in 38 sites across these subtropical forests in Argentina. We analysed ant species richness, turnover and composition within and between forests, and whether spatial and climatic variables explain diversity patterns.4. We collected 161 species belonging to 38 genera. The Atlantic forest had the highest cumulative species richness (91 species), followed by the Chaco (60) and Andean (52) forests. Neither mean species richness nor beta diversity differed significantly between forests, though both indicators tended to increase from west to east.5. Seven spatial and climatic variables differentiated forests. Aridity index, and variables associated with seasonal rainfall, moderately influenced a tendency to increase species richness from west to east.6. We identified five shared species between the Andean and Atlantic forests, which are candidates to test biogeographic hypotheses. The high level of species replacement across and among forests resulted in unique assemblages (with at least 29 species that seem to be exclusive to one forest), indicating the importance of conserving the biodiversity of the three forests.

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Conservation biogeography and diversity of tarantulas in Argentina

Allegue,

Schwerdt,

Ferretti

2024

Biological Journal of the Linnean Society

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The loss of biodiversity due to the effects of a number of human activities is a cause for great concern. Protected areas are currently one of the main conservation tools worldwide and their correct selection and design play a key role. Since 2000, there have been protocols for systematic conservation planning, which emphasize the identification of priority conservation areas (PCAs) to ensure the persistence of species habitats and the environmental processes associated with them. Spiders of the family Theraphosidae (tarantulas) have biological characteristics that make them vulnerable to fragmentation in time and space and also are underrepresented in current conservation efforts. The geographical distribution of endemic species, such as tarantulas, represents a historical and ecological footprint of all biological entities; therefore, such endemic areas are recognized as priority areas for biodiversity conservation plans. The present work aims to develop an integrative biogeographical approach to conservation through the evaluation of multispecies distribution patterns, and the study of species richness and areas of endemism of tarantulas in Argentina with the ultimate goal of assessing their relationship to existing protected areas and proposing PCAs.

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Endemic insects from the Yungas of Argentina

Cited by 7 publications

References 4 publications

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

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

Diversity of ground‐dwelling ants across three severely threatened South American subtropical forests: are diversity patterns influenced by spatial or climatic variables?

Conservation biogeography and diversity of tarantulas in Argentina

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