Rodrigo S. Rios

Rodrigo S. Rios
University of La Serena · Instituto de Investigación Multidisciplinario en Ciencia y Tecnología (IIMCT) / Department of Biology

Ph.D.

About

67
Publications
29,977
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
442
Citations
Introduction
My research interests are centered on the study of biodiversity from an ecological and evolutionary perspective. Specifically, I link: (1) adaptive processes, such as trait network evolution, with patterns of geographical variation in biotic and abiotic conditions. (2) patterns of species co-occurrence with community assembly theory, functional trait variation, and phylogenetic structure. (3) phenotypic evolution with diversification processes in different environments.
Additional affiliations
January 2015 - December 2015
University of La Serena
Position
  • Research Associate
July 2010 - December 2014
University of La Serena
Position
  • PostDoc Position
January 2010 - May 2016
University of La Serena
Position
  • Research Associate

Publications

Publications (67)
Article
Full-text available
Background Diet is a key component of a species ecological niche and plays critical roles in guiding the trajectories of evolutionary change. Previous studies suggest that dietary evolution can influence the rates and patterns of species diversification, with omnivorous (animal and plant, ‘generalist’) diets slowing down diversification compared to...
Article
Full-text available
Litter decomposition is controlled by climate, litter quality and decomposer communities. Because the decomposition of specific litter types is also influenced by the properties of adjacent types, mixing litter types may result in non‐additive effects on overall decomposition rates. The strength of these effects seems to depend on the litter functi...
Article
Full-text available
1.- The fast–slow plant economics spectrum predicts that because of evolutionary and biophysical constraints, different plant organs must be coordinated to converge in a unique ecological strategy within a continuum that shifts from fast to slow resource acquisition and conservation. Therefore, along a gradient of aridity, taxa with different strat...
Article
Full-text available
Background and Aims There is a paucity of empirical research and a lack of predictive models concerning the interplay between spatial scale and disturbance as they affect the structure and assembly of plant communities. We proposed and tested a trait dispersion-based conceptual model hypothesizing that disturbance reinforces assembly processes diff...
Article
Full-text available
Climate and litter quality drive litter decomposition, but there is currently little consensus on their relative importance, likely because studies differ in the duration, the climatic gradients, and variability in litter‐trait values. Understanding these drivers is important because they determine the direct and indirect (via vegetation compositio...
Article
1. Group living in gregarious caterpillars may shorten the larval stage, which is thought to reduce predation exposure. In the gregarious caterpillar Battus polydamas archidamas (Papilionidae) we addressed the effects of simulated predation threat on the duration of the larval stage in solitary and gregarious caterpillars. We further evaluated the...
Article
Birds host a diversity of ectosymbionts including feather‐dwelling arthropods such as feather mites and lice that they have co‐evolved and speciated with. Among these ectosymbionts, feather mites have evolved more mutualistic to commensal associations with birds than other groups. However, our understanding of the biological and ecological drivers...
Article
Full-text available
Coral reefs are structurally complex habitats that provide diverse shelter for motile benthic invertebrates (MBI), including those with cryptic and nocturnal behaviors. In this study, diel changes in MBI structure (species composition, density, and biomass) and functions (trophic groups and isotopic diversity indices) were examined on coral reefs a...
Article
Full-text available
1. Disturbance by small mammals and shrub canopies are ecological factors typical of arid ecosystems that may influence plant invasion through environmental and community changes. Whereas disturbance beneath shrub canopies may promote invasion by removing dominant species, disturbance in open areas may hinder plant invasion by increasing environmen...
Article
Full-text available
Intraspecific hybridization has been a strategy used frequently in mollusc aquaculture to improve the performance of traits for productive interest. In this study, the effect of hybridization between a natural population (Arica = A) and a cultivated population (Coquimbo = C; without genetic management for more than 30 y) of the Peruvian scallop Arg...
Article
Full-text available
Predation on livestock by wild carnivores represent large economic losses worldwide. Livestock predation by puma (Puma concolor) and culpeo fox (Lycalopex culpaeus) represents not only a problem for the Sajama National Park (SNP) management in Bolivian highlands, but also for the conservation efforts of these predators. At SNP we quantified: 1) The...
Article
Full-text available
1. Group living in caterpillars may enhance individual performance due to sharing of costs associated with individual tasks when dealing with biotic or abiotic ecological factors. 2. In the gregarious caterpillar Battus polydamas archidamas (Papilionidae) egg clusters and caterpillar groups vary in size. We hypothesized that individual survival wou...
Chapter
Full-text available
The bat family Phyllostomidae has undergone one of the largest known adaptive radiations among mammals; currently it is the second most diverse family of bats after Vespertilionidae and the most diverse with respect to feeding habits. Consequently, the Phyllostomidae plays a vital role in ecosystem processes, which include forest regeneration, plan...
Poster
Full-text available
This poster won the second place of the Best Poster Ecography Awards (15th EEF – European Ecological Federation Congress)
Poster
Full-text available
Thermal niche differences between three congeneric darkling beetles influencing their microhabitat use and environmental factors affecting their interannual abundance
Article
Full-text available
Livestock production is an important activity in drylands. However, lack of adequate regulation of ranching activities can lead to the degradation of plant communities, which in turn can impact ecosystem functioning. In the arid ecosystems of north‐central Chile, unregulated goat grazing is widespread. Since the vegetation has a relatively short ev...
Article
Full-text available
Aims Lianas are expected to influence composition, structure and functioning of forest systems due to unequal distribution across the potential set of host plants. However, our understanding of mechanisms associated with preferences for specific hosts is still limited, and so is our ability to discern between endogenous and exogenous forces drivin...
Data
SUPPLEMENTARY DATA Functional trait variation predicts distribution of alien plant species across the light gradient in a temperate rainforest
Poster
Full-text available
En plena ciudad de La Serena se encuentra el Cerro Grande cuya ubicación, topografía y condiciones microambientales heterogéneas lo erigen como punto único que da refugio a numerosas especies vegetales de la zona. Las laderas Norte y Sur tienen marcadas diferencias en radiación solar, mientras que el régimen de humedad y brisa marina varía de Este...
Article
Full-text available
1. The swallowtail butterfly Battus polydamas archidamas Boisduval, 1936, exhibits polyphenism for pupal colouration (green and brown). It is distributed across arid regions with winter rains and is monophagous on Aristolochia plants, which emerge after winter rains and dry out during summer. Thus, day length does not covary positively with host pl...
Article
Full-text available
In birds, the environmental variables and intrinsic characteristics of the nest have important fitness consequences through its influence on the selection of nesting sites. However, the extent to which these variables interact with variables that operate at the landscape scale, and whether there is a hierarchy among the different scales that influe...
Data
Mean values, standard deviation, confidence intervals (italics) and effect size θ of the ravine characteristics Mean values, standard deviation, confidence intervals (italics) and effect size θ of the ravine characteristics (effect size comparisons are for Non-reproductive ravines vs. Reproductive ravines and Active ravines vs. Inactive ravines; gi...
Data
Raw data file of study variables Geological origin (APG, sand with big stones; APM, sand with medium stones; APP, sand with small stones; A, sand without stones; CD, dejection cones, DC, colluvial deposits, FL, flow sandy slope, TA, alluvial terrace; TE, talud erosion).
Data
Proportion of all study ravines Proportion of all study ravines (in black non-reproductive ravines and gray reproductive) (A, B) and reproductive ravines (in black inactive reproductive ravines and gray active) (C, D) in relation to their corresponding geomorphology characteristics to substrate (A, C) and geological origin (B, D) expressed in perce...
Article
Full-text available
Background and aims: Disturbance often drives plant invasion and may modify community assembly. However, little is known about how these modifications of community patterns occur in terms of taxonomic, functional and phylogenetic structure. This study evaluated in an arid shrubland the influence of disturbance by an endemic rodent on community fun...
Article
Full-text available
The climbing habit is a key innovation in plants: climbing taxa have higher species richness than non-climbing sister groups. We evaluated the hypothesis that climbing plant species show greater among-population genetic differentiation than non-climber species. We compared the among-population genetic distance in woody climbers (8 species, 30 popul...
Poster
Full-text available
La diversificación de los Psitácidos Neotropicales estaría asociada a innovaciones clave producto del alzamiento de los Andes, el cual generó nuevas presiones selectivas por el cambio de hábitats de bosque tropical por sabana (~15 mya). En estos nuevos ambientes, la aparición de la estrategia de constructor estaría asociada a presiones selectivas i...
Article
Full-text available
In herbivorous insects, differences in the degree of specialization to host plants emerge when the distribution of an herbivore differs from that of its host plants, which results in a mosaic of populations differing in performance on the different host plants. Using a specialized butterfly, Battus polydamas archidamas Boisduval, 1936, which feeds...
Research
Full-text available
Informe final a CONAF sobre el estado de conservación del Guayacan, Porlieria chilensis Porlieria chilensis I. M. Johnst.(Zygophyllaceae) es una especie endémica Chile y está declarada oficialmente como “Vulnerable”. El objetivo de este proyecto fue “Evaluar el estado de conservación de Porlieria chilensis(guayacán) con base en análisis de modelos...
Article
Full-text available
AimTo develop an integrative framework to evaluate variation in aboveground carbon storage (AGC). A model that can be applied to understand and predict how global-change drivers influence tropical carbon sinks.LocationOld-growth tropical forests world-wide.Methods Using structural equation modelling (SEM), we propose an a priori model to evaluate t...
Conference Paper
Full-text available
Las aves evalúan la calidad del sitio de nidificación en función de diferentes componentes ambientales, biológicos y antrópicos; evento que repercute directamente en su éxito reproductor. Esta conducta ha sido poco abordada en especies constructoras de cavidades en emplazamientos alternativos como barrancos. El loro Tricahue, subespecie endémica de...
Poster
Full-text available
The effects of disturbance on diversity depend on the environmental conditions. Here, we assessed the role of natural disturbance by an endemic fossorial rodent (Spalacopus cyanus) on plant invasions and its consequence on ecological and phylogenetic community structure in an arid ecosystem. Exotic taxa tend to be associated with disturbed sites, a...
Article
Full-text available
The knowledge derived from Antarctic ecology may be fundamental to facing the complex environmental future of the world. As an early warning system, a deep understanding of Antarctic ecosystems is therefore needed, but Antarctic ecology as a field is still very young and currently under consolidation. Around the world, 55 nations are involved in th...
Article
Full-text available
The climbing habit is an evolutionary key innovation in plants because it is associated with enhanced clade diversification. We tested whether patterns of species divergence and variation of three ecophysiological traits that are fundamental for plant adaptation to light environments (maximum photosynthetic rate [Amax], dark respiration rate [Rd],...
Article
Full-text available
For many tropical plants, birds are the most important seed dispersers. Not all birds, however, will provide equally effective dispersal ser-vices. Behavioral differences, during and after feeding, can result in different establishment probabilities of new individuals. During 3 yr, we examined species-specific quantitative and qualitative aspects o...
Article
Full-text available
Antarctica is a highly interesting region for ecologists because of its extreme climatic conditions and the uniqueness of its species. In this article, we describe the trends in Antarctic ecological research participation by Latin American countries. In a survey of articles indexed by the ISI Web of Science, we searched under the categories ''Ecolo...
Conference Paper
Full-text available
Habitats that differ in environmental conditions will tend to select for species with particular phenotypes. Such a filtering process operates on particular traits key for survival and reproduction and thus has been shown to be an important process in community assembly. Plant species that belong to different climbing functional groups, defined acc...
Article
Full-text available
The stress gradient hypothesis posits that facilitation and stress are positively correlated. The hump-shaped hypothesis, on the contrary, proposes that facilitation is greater at intermediate stress levels. The relationship between facilitation and environmental stress is commonly studied at small spatial scales and/or considering few species; thu...
Data
Data matrices for the herb species case. (XLS)
Data
Data matrices for the shrub/cactus species case. (XLS)
Data
Data matrices for the shrub species only case. (XLS)
Article
Full-text available
In herbivorous insects, the interaction between adult preference and progeny performance on specific host plants is modified by maternal feeding experience and host plant quality. Ultimately, changes in the strength of this interaction can affect insect population dynamics. In this study, we hypothesized that adult host plant preference influences...
Article
Full-text available
Seed dispersal is a key process for plant regeneration in tropical areas. Differences in disperser behavior result in a nonrandom distribution of seeds among habitats. Patterns of seed dispersal may cascade through the entire recruitment phase or uncoupling between developmental stages may occur such that patterns of seed dispersal are discordant w...
Conference Paper
Full-text available
Introduction - Seed predation changes across spatial and temporal scales. We are yet to identify, however, the scale at which it operates (i.e., fruit, plant or population) and link it to factors responsible for scale variation (i.e., fruit traits). Scale-concordance occurs if regional correlations between plant traits and seed loss result from an...
Conference Paper
Full-text available
Background/Question/Methods Seed predation is pervasive in tropical forest systems and an important cause of reproductive loss for many plant species. This can have a strong selective force on plants to increase defenses against seed predators. On the other hand, insects that are obligate seed predators must evolved mechanism to match those of th...
Article
Full-text available
The benefits of ant-plant-herbivore interactions for the plant depend on the abundance of ants and herbivores and the selective pressures these arthropods exert. In plants bearing extrafloral nectaries (EFN), different mean trait values may be selected for by different populations in response to local herbivore pressure, ultimately resulting in the...
Technical Report
Full-text available
del aprovechamiento de Oenocarpus bataua en estructura y densidad poblacional IIFA-UAB/FORLIVE Página 1 de 9 Efecto del aprovechamiento comercial de frutos de majo (Oenocarpus bataua C. Martius) en estructura y densidad poblacional, en tres comunidades en el Norte Amazónico de Bolivia El fruto de majo (Oenocarpus bataua) es uno de los Productos For...
Article
Full-text available
Low postdispersal mortality of palm seeds in tapir dung is hypothesized to result from the mechanical barrier provided by dung against bruchid infestation and/or from the distance to adult palms at which seeds are dispersed. We tested these hypotheses by distributing endocarps of Attalea phalerata Mart. ex Spreng. in experimental dung piles in Beni...
Article
Full-text available
La disponibilidad de recursos alimenticios es uno de los factores más importantes que afectan la dieta y comportamiento de forrajeo de murciélagos frugívoros. En este estudio examinamos la composición del gremio de murciélagos frugívoros en la Estación Biológica Tunquini (EBT) – Cotapata y pusimos a prueba la hipótesis de que la dieta de murciélago...
Article
Full-text available
Considerar el comportamiento de forrajeo de visitantes florales es importante para muchos estudios de polinización ya que puede influenciar directamente sobre muchos aspectos de la interfase entre plantas y sus polinizadores como, por ejemplo, el flujo genético (Kearns & Inouye 1991). Al mismo tiempo, la dependencia que existe entre el comportamien...
Article
Full-text available
Evaluamos el grado de asociacion de la temperatura y la humedad, con el volumen, la concentracion y la composlicion del nectar en Nicotiana glauca en un clima seco. Examinamos ademas, la asociacion en1tre la temperatura y las visitas de los insectos alas flares. La temperatura y la humedad no estan asociadas con las caracteristicas del nectar y, pa...
Data
An update of Rios and Khan with two more species of bromeliads
Article
Full-text available
Sixty species are recorded with uses, all the genera are listed in KW2 Western_South_America, dessert_fruits, tonic, paper, fibres, cord, Tillandsia_spp, Billbergia_decora, Bromeliaceae, var_brevifolia, materials, Neoglaziovia_variegata, Dyckia_encholirioides, Pseudananas_sagenarius, Ecuador, plant_parts, dysentery, cork, Southern_America, leukorrh...

Questions

Questions (4)
Question
When analyzing data for identifying convergent evolution across communities without the a priori designation of ecomorphs or selective regimes as proposed by the ‘SURFACE’ method (Ingram & Mahler 2013), is it required that the inputed phylogenetic tree be monophyletic and composed of member of a same lineage? or can one use a community wide phylogenetic tree where taxa are not necessarily closely related, as is the case for community phylogenetic trees?
Question
Hi,
I was wondering if there is an R-package (and functions therein) that implements Bayesian Phylogenetic Mixed Models (BPMM) or is the general R-package "MCMCglmm" for Bayesian Mixed Models currently the best option?