Nabor Moya

Universidad Mayor Real y Pontificia de San Francisco Xavier de Chuquisaca, Bolivia · Biology

The lack of data from non-perennial rivers, which regularly cease to flow and dry up, poses a significant challenge in understanding river biodiversity. These dynamic ecosystems, accounting for over half of the global river network, remain understudied. To address this gap, we conducted a coordinated experiment and a metabarcoding approach on envir...

Freshwater biota are more comprehensive and direct indicators of biological impacts, and more meaningful to the public than water quality or physical habitat surrogates. Freshwater biotic data and the multiple biological indicators developed from them offer a much richer array of data for assessing the impacts of pollution controls than a limited s...

Rivers suffer from multiple stressors acting simultaneously on their biota, but the consequences are poorly quantified at the global scale. We evaluated the biological condition of rivers globally, including the largest proportion of countries from the Global South published to date. We gathered macroinvertebrate‐ and fish‐based assessments from 72...

River networks are among Earth’s most threatened hot-spots of biodiversity and provide key ecosystem services (e.g., supply drinking water and food, climate regulation) essential to sustaining human well-being. Climate change and increased human water use are causing more rivers and streams to dry, with devastating impacts on biodiversity and ecosy...

Resumen Los ríos son grandes centros de biodiversidad, pero también los más amenazados por distintas actividades antropogénicas. El caso particular del río Quirpinchaca que atraviesa por el centro de la ciudad de Sucre ha sufrido visiblemente serios daños y hasta ahora no existen estudios con base ecológica y técnica que permita evaluar y restaurar...

Perennial rivers and streams make a disproportionate contribution to global carbon (C) cycling. However, the contribution of intermittent rivers and ephemeral streams (IRES),which sometimes cease to flow and can dry completely, is largely ignored although theymay represent over half the global river network. Substantial amounts of terrestrialplant...

In the version of this Article originally published, the affiliation for M. I. Arce was incorrect; it should have been: ⁵Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany. This has now been corrected in the online versions of the Article.

More freshwater ecosystems are drying in response to global change thereby posing serious threat to freshwater biota and functions. The production of desiccation-resistant forms is an important adaptation that helps maintain biodiversity in temporary freshwa-ters by buffering communities from drying, but its potential to mitigate the negative effec...

More freshwater ecosystems are drying in response to global change thereby posing serious threat to freshwater biota and functions. The production of desiccation-resistant forms is an important adaptation that helps maintain biodiversity in temporary freshwa-ters by buffering communities from drying, but its potential to mitigate the negative effec...

The effect of drying events on aquatic biodiversity is still overlooked in wet Neotropical systems. Yet, the responses of local communities and metacommunities in these biodiversity hotspots may differ from what is reported in other areas. We addressed the effect of drying events on local and regional fish and macroinvertebrate communities in the h...

Most metacommunity studies indicate that dispersal processes play a minor role compared with species sorting in explaining metacommunity organisation, in particular, in stream systems. However, the role of dispersal could vary with environmental harshness, as a result of frequent resetting of community succession by disturbances and the selection o...

The effect of drying events on aquatic biodiversity is still overlooked in wet Neotropical systems. Yet, the responses of local communities and metacommunities in these biodiversity hotspots may differ from what is reported in other areas. We addressed the effect of drying events on local and regional fish and macroinvertebrate communities in the h...

Metals have been crucial components of cultures for millenia, but their acquisition and use have multiple undesirable side effects. In this talk, we focus on how metal mining has affected fish, macroinvertebrate, or diatom assemblages through use of case studies of mines in Montana (USA), Minas Gerais (Brasil), the High Andes (Bolivia), and Quebec...

Desarrollo de un índice multimétrico basado en macroinvertebrados acuáticos para evaluar la integridad biológica en ríos de los valles interandinos de Bolivia RESUMEN. Se presenta un índice multimétrico que permite discriminar la variabilidad ambiental natural de la antropogénica en 91 sitios (63 sitios de referencia y 28 sitios perturbados) distri...

We developed a multimetric index that could discriminate natural from anthropogenic variability in 91 sites (63 reference sites and 28 disturbed sites) fairly evenly distributed across the upper Grande River Basin (Bolivia). To do so, we examined 12 candidate metrics for their potential to indicate degradation and reflecting different aspects of ma...

We developed and validated a single multimetric index based on predictive models that could evaluate anthropogenic disturbances in streams of three disparate ecoregions of Bolivia. To do so, we examined 45 candidate metrics reflecting different aspects of macroinvertebrate assemblage structure and function gleaned from available literature and for...

A new species of riffle beetle from Bolivia, Neocylloepus chaparensis sp. nov., is described and illustrated from adults of both sexes and the larva. This is the first species of Neocylloepus Brown described from South America. The new species is compared with other species described in the genus. Distributional records, diagnoses and a key to dist...

El impacto de la estacionalidad de los ríos sobre las comunidades de macroinvertebrados fue estudiado en ríos de la zona Altoandina de Bolivia, durante la época de transición y época seca del año 2008. En nueve arroyos intermitentes y nueve permanentes se colectaron muestras de macroinvertebrados y parámetros ambientales. A traves de análisis multi...

Several recent studies have demonstrated that a functional approach (i.e. analysis of traits indicating species ecological functions) can be successfully used for river biomonitoring. To date this approach has only been applied in temperate rivers, even though it could notably contribute toward the development of an environmental assessment system...

The River Continuum Concept (RCC) explains the structural and functional characteristics of stream communities focusing on the gradually changing physical components from headwaters to downstream habitats of streams and rivers. The global value of the RCC is still uncertain, possibly because physical factors (e.g., altitude and then temperature, st...

We developed a preliminary macroinvertebrate-based multi-metric index to assess streams biotic condition in the Upper Isiboro-Sécure basin (Bolivia). To do so we used eight local habitat descriptors and twelve metrics describing the structure and function of macroinvertebrate assemblages from 38 reference and 29 disturbed sites. Stepwise multiple l...

Productivity (trophic energy) is one of the most important factors promoting variation in species richness. A variety of species-energy relationships have been reported, including monotonically positive, monotonically negative, or unimodal (i.e. hump-shaped). The exact form of the relationship seems to depend, among other things, on the spatial sca...

RESUMEN Con el propósito de desarrollar un índice multimétrico para evaluar la calidad biológica de los ríos de la Cuenca Chipiriri (Bolivia), tomamos muestras de macroinvertebrados bentónicos y medidas ambientales en dos grupos de sitios distribuidos uniformemente en toda la cuenca, 38 sitios con mínima perturbación antropogénica y 29 sitios pertu...

Con el propósito de desarrollar un índice multimétrico para evaluar la calidad biológica de los ríos de la Cuenca Chipiriri (Bolivia), tomamos muestras de macroinvertebrados bentónicos y medidas ambientales en dos grupos de sitios distribuidos uniformemente en toda la cuenca, 38 sitios con mínima perturbación antropogénica y 29 sitios perturbados....

RESUMEN Se estudiaron características físicas y químicas en 20 ríos, así como la composición y abundancia de las comunidades bentónicas, para tipificar los ríos del Piedemonte andino en el Departamento de Cochabam-ba. Mediante las comunidades de Ephemeroptera, Coleoptera, Trichoptera y Plecoptera, se realizaron análisis multivariables para determin...