66 Works

Etnoarqueología para el combate a la pobreza: la estrategia ignorada por el estado Mexicano

Sandra L. López Varela
pp. 195-211 Alexander von Humboldt (1988 [1811]) describes in his Essai Politique sur le Royaume de la Nouvelle Espagne, the landscape of social inequality that existed in New Spain in terms of the distribution of wealth, civilization and soil cultivation during the reign of Charles IV. For more than two centuries, the Mexican government has tried unsuccessfully to revert social end economic inequality through economic growth and development policies. In the following pages, I discuss...

Sex roles in birds: influence of climate, life histories and social environment

Tamas Székely, András Liker, Gavin H. Thomas, Jan Komdeur, Oliver Krügger & Alejandro Gonzalez-Voyer
For detailed information concerning data collection please see Gonzalez-Voyer et al. Sex roles in birds: phylogenetic analyses of the influence of climate, life histories and social environment. Ecology Letters. Briefly, data on ecology, life histories and behaviour of birds were extracted from published literature. If several data were available for a given species, we included the ones that were extracted from breeding individuals or had larger sample sizes. The details regarding data processing are provided...

Data from: Molecular and morphological evidence reveals a new species of Antiphytum (Echiochiloideae, Boraginaceae) from Guerrero, Mexico

Nidia Mendoza-Díaz, Helga Ochoterena, Michael J. Moore & Hilda Flores-Olvera
Molecular and morphological evidence supports a new species in the genus Antiphytum from the Sierra Madre del Sur, in the state of Guerrero, Mexico, here described as A. brevicalyx. This species is unique in the genus by possessing a calyx shorter than the corolla tube at anthesis; it is similar to A. floribundum in inflorescence arrangement, but differs from that species in lacking a basal leaf rosette and having appendages on the corolla throat. According...

Good alimentation can overcome the negative effects of climate change on growth in reptiles

Pilar Rueda-Zozaya, Melissa Plasman & Victor Hugo Reynoso
Climate change may lead to higher nest temperatures, which may increase embryo development rate, but reduce hatchling size and growth. Larger body size permits better performance, making growth an important fitness trait. In ectotherms, growth is affected by temperature and food quality. To segregate the effects of incubation temperature vs. alimentation on the growth of the Mexican black spiny tailed iguana Ctenosaura pectinata, we incubated eggs at 29 and 32ºC, and hatchlings were kept at...

Data from: Tree recruitment failure in old-growth forest patches across human-modified rainforests

Ricard Arasa-Gisbert, Víctor Arroyo-Rodríguez, Carmen Galán-Acedo, Jorge A. Meave & Miguel Martínez-Ramos
1. Land-use change threatens biodiversity in tropical landscapes, but its impact on forest regeneration remains poorly known. In fact, the landscape-scale patterns driving the diversity of regenerating plants within forest fragments have been rarely explored, and we are uncertain whether such drivers vary across regions with different land-use change patterns. 2. We assessed the effect of landscape composition (forest cover and matrix openness) and configuration (forest patch density) on species diversity of sapling assemblages (trees...

Volcanism and paleoclimate change drive diversification of world’s largest whip spider (Amblypygi)

Frederic Dominique Schramm, Alejandro Valdez-Mondragón & Lorenzo Prendini
The tropics contain many of the most biodiverse regions on Earth but the processes responsible for generating this diversity remain poorly understood. This study investigated the drivers of diversification in arthropods with stenotopic ecological requirements and limited dispersal capability using as model the monotypic whip spider (Amblypygi) genus Acanthophrynus, widespread in the tropical deciduous forests of Mexico. We hypothesized that for these organisms, the tropical deciduous forests serve as a conduit for dispersal, with their...

Non-adaptive evolutionary processes governed the diversification of a temperate conifer lineage after its migration into the tropics

Jorge Cruz Nicolás, Alfredo Villarruel-Arroyo, David S. Gernandt, Rosa M. Fonseca, Erika Aguirre-Planter, Luis E. Eguiarte & Juan Pablo Jaramillo-Correa
Constructing phylogenetic relationships among closely related species is a recurrent challenge in evolutionary biology, particularly for long-lived taxa with large effective population sizes and uncomplete reproductive isolation, like conifers. Conifers further have slow evolutionary rates, which raises the question of whether adaptive or non/adaptive processes were predominantly involved when they rapidly diversified after migrating from temperate regions into the tropical mountains. Indeed, fine-scale phylogenetic relationships within several conifer genus remain under debate. Here, we studied...

The relative effects of pace of life and habitat characteristics on the evolution of sexual ornaments: a comparative assessment

Will Sowersby, Simon Eckerström-Liedholm, Piotr Rowiński, Julia Balogh, Stefan Eiler, Joseph Upstone, Alejandro Gonzalez-Voyer & Björn Rogell
Selection may favor greater investment into sexual ornaments when opportunities for future reproduction are limited (e.g., due to high adult mortality). However, a key driver of mortality, predation, typically selects against elaborate sexual ornaments. Here, we examine the evolution of sexual ornaments in a group of killifishes, which have marked contrasts in life-history strategy between species and inhabit environments that differ in their accessibility to aquatic predators. We first assessed if the size of sexual...

Data for: Using spatial patterns of seeds and saplings to assess the prevalence of heterospecific replacements among cloud forest canopy tree species

Nancy R. Mejía-Domínguez, Jorge A. Meave, Carlos Díaz-Ávalos & Lorena Gómez-Aparicio
Questions: To gain insights into the role of species-by-species replacements in cloud forest community structuring, we asked: (1) What are the effects of the spatial distribution of standing individuals on the seed rain, soil seed bank, and sapling density and survival in this cloud forest? and (2) What is the prevalence of conspecific vs. heterospecific replacements in the regeneration of this forest? Location: Santo Tomás Teipan, Oaxaca State, southern Mexico. Methods: In a 1-ha cloud...

Elucidating gene expression adaptation of phylogenetically divergent coral holobionts under heat stress

Viridiana Avila-Magaña, Bishoy Kamel, Michael DeSalvo, Kelly Gómez-Campo, Susana Enríquez, Hiroaki Kitano, Rori Rohlfs, Roberto Iglesias-Prieto & Mónica Medina
As coral reefs struggle to survive under climate change, it is crucial to know whether they have the capacity to withstand changing conditions, particularly increasing seawater temperatures. Thermal tolerance requires the integrative response of the different components of the coral holobiont (coral host, algal photosymbiont, and associated microbiome). Here, using a controlled thermal stress experiment across three divergent Caribbean coral species, we attempt to dissect holobiont member metatranscriptome responses from coral taxa with different sensitivities...

Saguaro recruitment data obtained by inverse-growth modelling

Eugenio Larios, Ricardo Efren Felix-Burruel, Edgar J. Gonzalez & Alberto Burquez
Each year, an individual mature large saguaro cactus produces about one million seeds in attractive juicy fruits that lure seed predators and seed dispersers in a three-month feast. From the million seeds produced, however, only a few will persist into mature saguaros. A century of research on saguaro population dynamics has led to the conclusion that saguaro recruitment is an episodic event that depends on the convergence of suitable conditions for survival during the critical...

Colorful traits in female birds relate to individual condition, reproductive performance, and male mate preferences: A meta-analytic approach dataset

America Hernandez, Rene Beamonte-Barrientos, Margarita Martinez-Gomez & Bibiana Montoya
Colorful traits in females are suggested to have evolved and be maintained by sexual selection. Although several studies have evaluated this idea, support is still equivocal. Evidence has been compiled in reviews, and a handful of quantitative synthesis have explored evidence of the link between condition and specific color traits in males and females. However, understanding the potential function of females’ colorful traits in sexual communication has not been the primary focus of any of...

Supervivencia del más apto

Rosa Beltrán
pp. 12-13.

Data from: Low-copy nuclear genes reveal new evidence of incongruence in relationships within Malvaceae s.l.

Rebeca Hernández-Gutiérrez, Carolina Granados Mendoza & Susana Magallón
The family Malvaceae s. l. is a clade that comprises nine subfamilies. Phylogenetic relationships among them are not completely resolved and are inconsistent among studies, probably due to low phylogenetic informativeness of conventional molecular markers. In the present study, we provide new phylogenetic information for Malvaceae s.l. derived from newly-designed group-specific nuclear markers. By mining transcriptome data from the One Thousand Plant Project (1KP) and publicly available genome information from cotton, cacao, and Arabidopsis, we...

Cumulative germination of seeds ingested by black howler monkeys

Julieta Benitez Malvido & Ana Maria González-Di Pierro
Premise of the Study: Primates are important seed dispersers, especially for large-seeded (> 1 cm length) tropical species in continuous and fragmented rainforests. Methods: In three forest fragments within the Montes Azules Biosphere Reserve, southern Mexico, we investigated the effect of howler monkeys´ (Alouatta pigra) gut passage on the germination rate and maximum germination (%) of native large-seeded species. One group of howler monkeys, per fragment, was followed and fresh feces collected. Large seeds were...

Data from: Dispersal limitations and long-term persistence drive differentiation from haplotypes to communities within a tropical sky-island: evidence from community metabarcoding

Nancy Gálvez-Reyes, Paula Arribas, Carmelo Andújar, Brent C. Emerson, Daniel Piñero & Alicia Mastretta-Yanes
Neutral theory proposes that dispersal stochasticity is one of the main drivers of local diversity. Haplotypes-level genetic variation can now be efficiently sampled from across whole communities, thus making it possible to test neutral predictions from the genetic to species-level diversity, and higher. However, empirical data is still limited, with the few studies to date coming from temperate latitudes. Here, we focus on a tropical mountain within the Transmexican Volcanic Belt to evaluate spatially fine-scale...

Data from manuscript: Assessment of the 7075-T6-aluminum-alloy/microalloyed-dual-phase-steel joint for automotive chassis

Rodrigo Mayen-Mondragon, Juan Genesca-Llongueras & Vianey Torres-Mendoza
The corrosion behavior of a 7075-T6 Aluminum Alloy sample (AA7075-T6) and a low-Carbon low-Manganese microalloyed dual-phase steel sample (MADPS) were studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP). The galvanic corrosion resulting from their assembly within a dissimilar joint, was studied by the zero-resistance ammeter technique (ZRA). The tests were conducted at room temperature and pressure (Mexico City) using an aqueous solution of 3% NaCl as electrolyte (pH 5.3) and without deaereating the...

Sugar and nitrogen digestive processing does not explain the specialized relationship between euphonias and low quality fruits

Marco Aurelio Pizo, Ana Crestani, Antonio Fontanella, L. Gerardo Herrera M & Ariovaldo Cruz-Neto
In the Neotropical region, euphonias (Euphonia spp., Fringillidae) are the quintessential example of specialized bird frugivores, making the bulk of feeding visits to certain mistletoes (Phoradendron spp., Santalaceae) and epiphytes in the genus Rhipsalis (Cactaceae), whose fruits have high water and low sugar and protein concentrations. Surprisingly, a mechanistic explanation for such specialized, otherwise rare, relationships is lacking. Using captive birds and artificial diets, we contrasted euphonias with frugivorous tanagers in the genus Thraupis (Thraupidae),...

UCE alignments and phylogenetic trees

Christopher Blair, Robert Bryson, Uri Garcia-Vazquez, Adrian Nieto-Montes De Oca, David Lazcano, John McCormack & John Klicka
Genomic data continue to advance our understanding of species limits and biogeographic patterns. However, there is still no consensus regarding appropriate methods of phylogenomic analysis that make the best use of these heterogeneous data sets. In this study, we used thousands of ultraconserved element (UCE) loci from alligator lizards in the genus Gerrhonotus to compare and contrast species trees inferred using multiple contemporary methods and provide a timeframe for biological diversification across the Mexican Transition...

Nucleotide sequences in Procambarus clarkii

Leonardo Rodríguez-Sosa, Gabina Calderón-Rosete, Juan Antonio González-Barrios, Celia Piña-Leyva, Hayde Nallely Moreno-Sandoval & Manuel Lara-Lozano
Crayfish is a model for studying the effect of light on locomotor activity and neuroendocrine functions. In this study, we have described 62 transcripts from the pleonal nerve cord of the crayfish, using bioinformatics tools that identify phylogenetic families of genes related to the light interaction in the extraretinal photoreceptors. We deposited all sequencing data in the GenBank database. Here shows supplemental data from the freshwater crayfish Procambarus clarkii. The results suggest that the genes...

Data from: The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes

Sofía Zorrilla Azcué, Antonio González-Rodríguez, Ken Oyama, Mailyn A. González & Hernando Rodríguez-Correa
The climatic and geological changes that occurred during the Quaternary, particularly the fluctuations during the glacial and interglacial periods of the Pleistocene, shaped the population demography and geographic distribution of many species. These processes have been studied in several groups of organisms in the northern hemisphere, but their influence on the evolution of Neotropical montane species and ecosystems remains unclear. This study contributes to the understanding of the effect of climatic fluctuations during the late...

Midgut transcriptome assessment of the cockroach-hunting wasp Ampulex compressa (Apoidea: Ampulicidae)

Manuela Sann, Jovana M. Jasso-Martínez, Alexander Donath, Dieter Schulten & Alejandro Zaldívar-Riverón
The emerald jewel wasp Ampulex compressa (Hymenoptera: Ampulicidae) is a solitary wasp that is widely known for its specialized hunting of cockroaches as larvae provision. Adult wasps mainly feed on pollen and nectar, while their larvae feed on the cockroachs’ body, first as ecto- and later as endoparsitoids. Little is known about the expression of digestive, detoxification and stress-response-related genes in the midgut of A. compressa, or about its transcriptional versatility between life stages. To...

Bat-flower interaction networks in Caatinga reveal generalized associations and temporal stability

Eugenia Cordero-Schmidt, Pietro Kiyoshi Maruyama, Juan Carlos Vargas-Mena, Paulino Pereira Oliveira, Francisco De Assis R. Santos, Rodrigo A. Medellín, Bernal Rodriguez-Herrera & Eduardo M. Venticinque
Seasonal variation in precipitation regimes influences species composition and plant-animal interactions. Such temporal variation is especially relevant in the Brazilian Caatinga, the largest Seasonally Dry Tropical Forest in South America, where bat pollination is unusually frequent in comparison with other tropical plant communities. Here, we describe seasonal and annual variations of the interaction networks between nectarivorous bats and flower species in the Caatinga. Five species of nectar-feeding bats interacted with 30 plant species. Nectarivorous bats...

Fast life-histories are associated with larger brain size in killifishes

Will Sowersby, Simon Eckerström-Liedholm, Alexander Kotrschal, Joacim Näslund, Piotr Rowiński, Alejandro Gonzalez-Voyer & Björn Rogell
The high energetic demands associated with the vertebrate brain are proposed to result in a trade-off between the pace of life-history and relative brain size. However, because both life-history and brain size also have a strong relationship with body size, any associations between the pace of life-history and relative brain size may be confounded by coevolution with body size. Studies on systems where contrasts in the pace of life-history occur without concordant contrasts in body...

The importance of environmental conditions in maintaining lineage identity in Epithelantha (Cactaceae)

Alejandra Moreno-Letelier, David Aquino, Miguel A. González-Botello, Salvador Arias, Alejandra Moreno‐Letelier & Miguel A. González‐Botello
The use of environmental variables to explain the evolution of lineages has gained relevance in recent studies. Additionally, it has allowed the recognition of species by adding more characters to morphological and molecular information. This study focuses on identifying environmental and landscape variables that have acted as barriers that could have influenced the evolution of Epithelantha species and its close genera. Our results show that soil pH, isothermality, temperature seasonality, and annual precipitation have a...

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  • National Autonomous University of Mexico
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  • Universidad de Ciencias y Artes de Chiapas
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  • Osaka City University
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  • Universidad Juárez del Estado de Durango
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