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Copyright of Arqueología Iberoamericana is the property of Arqueologia Iberoamericana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Purpose The purpose of this paper is to explore how consensus decision making serves as a foundation for organizing an alternative economy while the agency of the economic project itself organizes participants because it serves to distribute resources as people need them and foment a community of sharing based on the concept that as individuals we are lacking but as a community we have enough. The paper asserts that as activists looking to foment change, alternative economic projects in themselves are actors in organizing community building and resistance to capitalism.Design/methodology/approach El Cambalache (The Swap in English), located in San Cristobal de las Casas, Chiapas, Mexico, is an exchange-based money-less economy that trades unwanted items as well as knowledge, abilities and skills that one wants to share. The project receives anything; specifically used, broken and/or unwanted electronics as well as just about anything else that one might possess. In exchange people provide laptop maintenance classes, language exchange, land to be worked, rooms, gardening services, objects, stories, etc. The rules in this money-less non-capitalist economy organize participation through one exchange or many.Findings Consensus decision making is an effective method for engaging in non-hierarchical research projects.Originality/value This project contributes to research in heterodox economies by presenting an original project with a new suggestion for exchange value as an inclusive process of exchange among participants in the economy. It also provides evidence that consensus decision making can be a useful and productive method for research. [ABSTRACT FROM AUTHOR]

Copyright of Economía, Sociedad y Territorio is the property of El Colegio Mexiquense and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Despite the shortened commodity chain created for coffee through fair trade, there still exist a number of actors within certified commodity exchange. This chain is populated by disproportionately engaged actors, from a consumer looking for the certification seal, to coffee roasters working directly with coffee producing cooperatives, to producers striving to keep up with the standards for certification. Despite such disparities, connections are made between the roasters and the growers of coffee at multiple sites, from community-based projects to the transfer of knowledge and storytelling beyond the communities where coffee is cultivated. These connections suggest that fair trade exchanges potentially go beyond the sale of a commodity, the creation of surplus value and the connecting of producer and consumer. In this paper, I draw on the expanding literature on diverse and community economies to examine fair trade exchanges. The heterogeneous space of the community economy provides a platform for considering the diversity of exchanges happening within, outside, and alongside capitalism. In this paper, I focus on fair trade certified coffee, moving beyond current explanations of fair trade as “alternative” and working toward a multiplying of our understanding(s) of what fair trade is. Utilizing data collected in Chiapas, Mexico with two coffee producing cooperatives and their U.S.-based partner roasters, as well as analysis of the, 2016 celebration of Fair Trade Month, I reframe fair trade to examine the power and privilege in certified exchanges and consider the broader fair trade network as a site of community economies. [ABSTRACT FROM AUTHOR]

Copyright of Brazilian Journalism Research is the property of Sur le journalisme, About journalism, Sobre jornalismo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The purpose of this paper is to underline the implications that language endangerment has, not only for the speakers of a specific language, but for the entire world as losing a language involves the disappearance of cultural, spiritual and intellectual knowledge as well as cultural identity. Many indigenous languages in Mexico, for example, have been in danger as Spanish, the dominant language of the country, has put them at a disadvantage. Transitional bilingual education has been used to achieve such a goal. Since this has been the case, some indigenous communities have taken the initiative to work diligently to preserve and promote their native language and culture despite the sociopolitical, economic and educational pressures they face. An example of that is the Mayan Tsotsil community in Chiapas in southern Mexico. This paper offers a summary of the findings of the qualitative research study that was conducted to explore the situation of the Tsotsil language at a Spanish-Indigenous Tsotsil elementary bilingual school in Chiapas. Tsotsil children and their teacher show that it is possible to preserve and promote the Tsotsil language when working together as a community. It is concluded that quality bilingual education and inclusive schools can be great tools that can contribute to have a harmonious and peaceful world. [ABSTRACT FROM AUTHOR]

This paper aims to describe the situations of vulnerability to the possibility of becoming human trafficking victims for both mobile and resident populations in the municipality of Tapachula, Chiapas during October 2018 and July 2019, period in which the first caravans arrived in the border between Tapachula, Mexico and Tecun Uman, Guatemala. This paper is the result of a qualitative research approach that examines the category of vulnerability and the legal framework for human trafficking in Mexico, and it is based on field observation records in institutions dedicated to the protection of migrants and victims of gender-based violence, as well as in interviews with key informants in Chiapas and Mexico City. The main conclusion of this work is that the juncture resulting from the response of the Mexican government to the caravans, the austerity policy enforced by the Mexican government, and the problems derived from an institutional design that operates without adherence to the legal framework and with overwhelmed capacity, led to situations of unprecedented or exacerbated vulnerability for these populations. [ABSTRACT FROM AUTHOR]

Most studies on hazards to smallholder farmers focus on the impact of climate variability on their livelihoods. However, climate variability does not exist in isolation; rather, it manifests in combination with a multiplicity of stressors. This paper examines the perceptions of the influence of climate variability on multiple stressors affecting the agricultural livelihoods of smallholder farmers in an irrigation system in southern Mexico. An ethnographic approach was used to conduct a qualitative study of 85 smallholder farmers in four communities. The results showed that farmers are affected by several biophysical (e.g. water scarcity, crop disease) and socioeconomic (e.g. market price problems, high cost of chemical inputs) stressors that interact with climate variability. Farmers perceived increase in temperature, decrease in rainfall, and changes in the rainfall pattern (onset of the rainy season, its duration or cessation) as amplifying the stressors of water scarcity and crop disease. The results suggest that policies should go beyond the impacts of climate variability on agricultural livelihoods and consider the full range of socioeconomic impacts. Furthermore, the differences in perception regarding stressors and climate variability in communities point to the need for effective implementation of policies adapted to local conditions. [ABSTRACT FROM AUTHOR]

This paper describes a sclerobiont association from the Paso Hondo Formation (Roadian, middle Permian), Chiapas, Mexico. Different marine invertebrates such as hederelloids, microconchids, bryozoans, and crinoids (represented by holdfasts) encrusted brachiopod shells belonging to Athyridida and Rhynchonellida. This association is similar to those recorded in different Devonian localities, especially by the co-occurrence of microconchids, hederelloids, and bryozoans. Paleoecological analysis revealed that bryozoans were the most abundant sclerobionts, whereas crinoid holdfasts were uncommon. Likewise, hederelloids and microconchids often settled on hosts previously colonized by bryozoans. Most microconchids encrusted rhynchonellid shells. A positive correlation between the size of the hosts and abundance/diversity of sclerobionts was recorded. The distribution analysis suggests that sclerobiont colonization could have been influenced either by inhalant currents of brachiopods, time of exposure, position of hosts, or by combination of all these factors. Moreover, most of commissures and foramens of brachiopods were not covered by epibionts, suggesting that there was a live interaction. Thus, studied brachiopods were likely encrusted syn vivo, and the interaction between sclerobionts and their brachiopod hosts was likely commensal since there is no damage to the brachiopod valves in the form of malformations or borings. On the contrary, the epibiont cover might have served as a natural shield against predators and parasites. The Roadian age of the association is based on the stratigraphic distribution of host brachiopods. The studied association inhabited open waters on a homoclinal carbonate ramp in the Chicomuselo region. Although encrusted brachiopods belong to the biotic Grandian Province, similar sclerobiont communities have not been previously recorded from the Permian of North America or beyond. The described community represents the youngest record of co-occurring microconchids, hederelloids, and bryozoans, as all previously known similar communities originate from the Late Devonian. [ABSTRACT FROM AUTHOR]

Copyright of Relaciones: Estudios de Historia y Sociedad is the property of El Colegio de Michoacan, A.C. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of La Granja, de Ciencias de la Vida is the property of Universidad Politecnica Salesiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletín de la Sociedad Geológica Mexicana is the property of Sociedad Geologica Mexicana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Therya is the property of Asociacion Mexicana de Mastozoologia, A. C. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mexicana de Biodiversidad is the property of Universidad Nacional Autonoma de Mexico, Instituto de Biologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Fotocinema is the property of Revista Fotocinema and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of IBEROAMERICANA. América Latina - España - Portugal is the property of Vervuert Verlag and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper tells the story of how a group of fishermen became resilient to face a community crisis in their village caused by the depletion of shrimp stocks, and how they are building transnational social resilience through the creation and operation of an Ecotourist resort to improve their lives, and insure their future well- being. Social change is taking place in some communities in the La Costa region of Chiapas, one of the most impoverished states in Mexico, where people opted to emigrate to the US and came back charged with individual and collective social remittances, new personal narratives which have helped them and their community adapt and change while constructing transnational lives. The development of El Centro Turístico El Madresal in Ponte Duro, Chiapas, provides an interesting case study in how to use the tools of social resilience conceptualization within a transnational context. [ABSTRACT FROM AUTHOR]

Copyright of Sustainability in Debate / Sustentabilidade em Debate is the property of University of Brasilia, Center for Sustainable Development and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletín de la Sociedad Geológica Mexicana is the property of Sociedad Geologica Mexicana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Fair trade certification is a mechanism used by coffee cooperatives to assist farmers with accessing cash income and securing a better price for their product. Third-party certifiers regulate the fair trade label, which is tied not only to price, but also to standards for production and development. In this paper, I examine these standards as they are deployed in self-declared autonomous communities in the highlands of Chiapas, Mexico. I argue that third-party certifiers through enforcement of standards, and surveillance attempt to create a producer subject who becomes “fixed” through certification. Drawing from fieldwork with the coffee cooperative Maya Vinic, I provide an example of how farmers negotiate larger political commitments and livelihood strategies while engaging in coffee production. Members of Maya Vinic reside in communities that have declared autonomy from the Mexican state and neoliberal market. These political commitments draw a tension into the landscape as farmers commit land and time to coffee while maintaining subsistence production. Through an examination of the annual fair trade audit, I detail this contradiction as it plays out in the highlands. I conclude that new lines of inquiry must be established that take into account place-based politics as they intersect with fair trade certification. [ABSTRACT FROM AUTHOR]

Copyright of Estudios de Cultura Maya is the property of Instituto de Investigaciones Filologicas - UNAM and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The interest in the potential role of community enterprises in sustaining self-managed development strategies stems from the analysis of the scarce results provided by top-down development interventions in indigenous settings. This paper reports on an ethnographic study carried out in the Mexican state of Chiapas, where 16 community enterprises managed by local indigenous communities have been analysed. The focus of the analysis was to identify the main needs of local indigenous communities and the contribution that community enterprises could give to addressing these needs. The main findings pinpoint some enabling factors for the emergence of community enterprises and some specific characteristics that explain the contribution of community enterprises in supporting alternative approaches to development, where local communities are actors of their own development processes. Copyright © 2015 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Copyright of Confluenze. Rivista di Studi Iberoamericani is the property of Universita di Bologna, Dipartimento di Lingue, Letterature e Culture Moderne and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Zapatista rebellion in Chiapas has contributed to the construction of indigenous autonomy in Mexico, a process that shares similar features to the struggles of social movements throughout Latin America. This article examines how autonomy became a central demand for the Zapatistas, the practices that they have instituted, and the challenges they face. The analysis draws on recent debates over the political impact of indigenous movements, including the struggle for new models of post-liberal citizenship, the limitations of neoliberal multiculturalism, and the adoption of decolonial forms of resistance. The paper argues that Zapatismo can be understood as an expression of decolonial liberation in which autonomy is constructed through the recreation of social ties in local, national, and international spaces. In doing so, Zapatismo represents a political and theoretical shift that calls for greater attention to the processes and practices that can sustain autonomy. [ABSTRACT FROM PUBLISHER]

Pleistocene fluvial sequences have been recognised in some regions of México as an important source of information on past environmental change using a wide range of proxies. However, this has not been attempted in Mexico's southernmost state of Chiapas until the current paper, where the main aim is to describe and date five new Late Pleistocene fossil rich sequences and to interpret their paleoenvironmental record and changes that they indicate. This interpretation is based on the sedimentology, pollen record and stable isotopes from vertebrate fossils together with the radiocarbon dating of the fluvial sediments. At Los Mangos and El Bajión fossil sites the fluvial sediment record reported here includes a conspicuous layer with aerodynamic Fe magnetic microspherules associated with the Younger Dryas (YD) meteorite impact which adds to the type of paleoenvironments in which such meteorite impacts have been recognised. The sediment dating indicates that the fossiliferous sites are Late Pleistocene in age, and they add new locations and information for México for this climatic phase. • We present a revisión, dating and interpretation of the Late Pleistocene megafauna from Chiapas State, southern Mexico. • Five fossiliferous fluvial sequences showed important changes in the river direction and energy during the Late Pleistocene. • Late Pleistocene paleoenvironment was mainly of savanna with sporadic trees. • First record of the Younger Dryas Meteorite layer preserved in fluvial sediments in Central America. • The megafauna assemblages are of Rancholabrean age. [ABSTRACT FROM AUTHOR]

Copyright of Estudios de Cultura Maya is the property of Instituto de Investigaciones Filologicas - UNAM and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Natural phenomena affect differently in the world. It comes first from the geographical location, followed by the economic characteristics of each region. The objective of the case study presented is to design a supply network of essential products to victims in the state of Chiapas, located within the Mexican Republic, which is one of the states most affected by the appearance of natural phenomena. The vehicular routing problem with capacity is applied as a solution for the supply of aid products to 120 of 124 municipalities impacted by natural phenomena of a hydrometeorological type during the period 2015-2022. Evaluating the different municipalities that are home to the state under study through various Infrastructure and service factors, the municipality of Tuxtla Gutiérrez is determined as the origin of the routing, obtaining with it a total of 44 routes with an average of 2.7 municipalities to be supplied per route and an average of 402 km travelled. A second municipality is located, Tapachula, which obtains a second place in evaluating factors, providing the longest route in the distance travelled. [ABSTRACT FROM AUTHOR]

Copyright of Estudios de Cultura Maya is the property of Instituto de Investigaciones Filologicas - UNAM and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The snake Mastigodryas dorsalis (Bocourt, 1890) is generally considered absent from Mexico, but a few sources indicate otherwise. Herein we resolve this issue by re-examining a historical specimen and by reporting new records for M. dorsalis in Chiapas, Mexico. These records extend the known distribution of the species 87 km northwest of the nearest pre-existing record in Guatemala. Additionally, based on these new records and an exhaustive literature review, we present an updated distribution for the species and revise its known elevational range to 300–2110 m. A complete Spanish translation of this paper is available in the Supplemental Data. Una traducción completa al español de este artículo está disponible en los Datos Suplementarios.

Regarding migration changes between Mexico and the USA, this study focuses on the increase and diversification of migration between Chiapas and the USA during the period 2000-2007. This paper argues that not only economic conditions are the explanation to these migrations but also, in certain regions, political processes and impacts of natural disasters were important drivers for migration -a combination of causes in the context of migration-. Based on different sources (indicators of migration intensity, index on the remittance reception, migratory censuses, demographic surveys, quantitative and qualitative migratory studies), the increase in migration is shown at a state and regional level. Furthermore, the increase of migration in certain regions is assessed in relation with its causes (social, environmental, political and economical) showing that, migrations are multicausal processes spatially differentiated on the basis of the migrants' place of origin. [ABSTRACT FROM AUTHOR]

Anthracotheres are generalised artiodactyls that have an extensive record in the Cenozoic of Eurasia and Africa. In North America they have been collected in middle Eocene to early Miocene localities from the California Coast, the Great Plains and the Gulf Coast of the United States, with a single record from the early Miocene of Panama. Here we report few specimens from the early Oligocene (Ar1) Iniyoo Local Fauna of north-western Oaxaca, and the earliest Miocene of Simojovel de Allende, in northern Chiapas. This material has diverse features that indicate they belonged to the bothriodontine Arretotherium , such as selenodont cristids associated with the protoconid and hypoconid, the absence of a premetacristid, and the crenulated enamel. They share with Arretotherium acridens and Arretotherium meridionale the absence of a mesiolingual metacristid, but their general morphology and size indicate a close relationship to Ar. meridionale. Nevertheless, in absence of better-preserved specimens, we decided not to assign the fossil material to this species. Specimens from Oaxaca and Chiapas are the first records of anthracotheres in Mexico. These new records link the previous ones from temperate North America and tropical Central America and indicate that Anthracotheriidae had a very wide geographical distribution in North America during the Palaeogene and the Neogene. Additionally, they represent the southern-most records of Arretotherium in North America during the Oligocene and the early Miocene. [ABSTRACT FROM AUTHOR]

Autonomy is often universally defined and undertheorized, making invisible ways of knowing and understanding autonomy that are embodied and practiced. Alternate theorizations have drawn on anti-capitalist and alter-globalization movements and discourses to provide accounts of struggles for autonomy as they relate to self-determination, identity politics, and oppositional action, however, in many cases these accounts are still grounded in universal understandings. In this paper I use a feminist geopolitical perspective to re-read autonomy for difference within, alongside and outside of contemporary political geographies of autonomy. Empirical work in self-declared autonomous communities in Chiapas, Mexico, demonstrates that current political geographies of autonomy do not sufficiently explain the ongoing struggle for indigenous farmers in the highlands. In the article, I examine how autonomy is understood and practiced by subsistence corn and coffee farmers who have declared themselves autonomous and in resistance. I argue that in the case of farmers in resistance, autonomy is not just a political act, but also an embodied practice deployed through agricultural production and consumption. A feminist geopolitics assists with reframing autonomy and identifying different ways that it is understood and practiced. In examining the practices that farmers view as contributing to autonomy, different understandings and ways of knowing autonomy emerge. [ABSTRACT FROM AUTHOR]

In this paper we explore notions of within-group language variation in a Tzotzil Maya town of Chiapas, Mexico. Integrating GIS mapping, cultural domain analysis, and ethnographic research we find that the Tzotzil of Chenalhó hold a center-diffusion model of language variation in their municipality. We show that, counter to dichotomous models of identity, people see variation between communities as continuous and use spatial distances as a proxy for estimating linguistic differences. However, contrary to our expectations, people do not estimate linguistic distances from their own community; instead, they use the presumed pre-conquest center of the larger ethnic group as a point of reference from which variation emerges. Estimations are further influenced by a notion of a linguistically homogeneous center as well as by socio-political knowledge and stereotypes. These findings suggest that spatial cognition, combined with social and historical factors, may play a pivotal role in processes of identity formation and maintenance. Linguistic ideologies inscribe both deeply buried histories as well as people's conceptualization of space and their place in it. [ABSTRACT FROM AUTHOR]

Two new species of sequestrate fungi are described from south Mexico based on morphological and molecular evidences. Here we describe Elaphomyces castilloi characterized by the yellowish mycelial mat, dull blue gleba and ascospores of 9.7-11.5 µm; Entoloma secotioides is characterized by the secotioid basidiomata, sulcate, pale cream pileus, and basidiospores of 7-13 × 5-9 µm. Both species grow in montane cloud forest under Quercus sp. in the state of Chiapas, Mexico. Descriptions, photographs, and multilocus phylogeny for both species are presented. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Animal Ecology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Brittonia is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The meaning of "youth" is changing among young Tzeltal migrants from Chiapas, Mexico, living in the U.S. state of California. Migration improves young people's condition in terms of work, leisure time, and cultural consumption. A study based on ethnographic data, interviews, questionnaires, and participant observation undertaken in 2011, 2013, and 2016 shows how the material resources to which these migrants have access are directed toward building a unique youth style based on aesthetics and language that can be called the "Tzeltal jungle cowboy." El significado del concepto "juventud" está cambiando entre los jóvenes migrantes tzeltales de Chiapas, México, que viven en el estado de California en Estados Unidos. La migración mejora las condiciones de vida de los jóvenes debido a su acceso al trabajo, tiempo libre y consumo cultural. Un estudio hecho en base a datos etnográficos, entrevistas, cuestionarios y observación participante realizado en 2011, 2013 y 2016 nos muestra cómo los recursos materiales a los que tienen acceso estos migrantes se dirigen a construir un estilo juvenil único basado en la estética y el lenguaje que podría denominarse el "vaquero tzeltal de la selva". [ABSTRACT FROM AUTHOR]

Background: In Mexico, despite that the fact that several social programs have been implemented, chronic undernutrition is still a public health problem affecting 1.5 million children of <5 years. Chiapas ranks first in underweight and stunting at national level with a stunting prevalence of 31.4 % whereas for its rural population is 44.2 %. The purpose of this paper is to determine if the nutritional status of a cohort of children living in poor rural communities under Oportunidades has changed. We were interested in assessing the nutrition evolution of the children who were initially diagnosed as stunted and of those who were diagnosed as normal. Oportunidades is an anti-poverty program of the Mexican government consisting mainly in monetary transfers to the families living in alimentary poverty.Methods: A 9-year cohort prospective study was conducted with nutritional evaluations of 222 children. Anthropometric indices were constructed from measurements of weight, height, and age of the children whose nutritional status was classified following WHO standards.Results: The results showed that although these children were Oportunidades beneficiaries for 9 years and their families improved their living conditions, children still had a high prevalence of stunting (40.1 %) and 69.6 % had not recovered yet. Children who were initially diagnosed with normal nutritional status and became stunted 2 years later had a higher risk (relative risk (RR) 5.69, 2.95-10.96) of continuing stunted at school age and adolescence.Conclusions: Oportunidades has not impacted, as expected, the nutritional status of the study population. These findings pose the question: Why has not the nutritional status of children improved, although the living conditions of their families have significantly improved? This might be the result of an adaptation process achieved through a decrease of growth velocity. It is important to make efforts to watch the growth of the children during their first 3 years of age, to focus on improving the diet of women at fertile age and pay special attention to environmental conditions to break the vicious cycle of malnutrition. [ABSTRACT FROM AUTHOR]

Copyright of Polis (07176554) is the property of Polis - Revista Academica Universidad Bolivariana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The description of the male of Anacroneuria izapa Stark & Kondratieff 2004 is complemented and the female and egg are described from specimens collected in the Lacandona jungle, Chiapas, Mexico. [ABSTRACT FROM AUTHOR]

The trematodes of Allocreadiidae are mainly parasites of freshwater fish and the family contains 18 valid genera. Since 2004, 4 genera have been described in the Americas: Paracreptotrema, Paracreptotrematoides, Pseudoparacreptotrema and Auriculostoma, of which the latter was recently synonymized with Creptotrema by Franceschini et al., (2021). During a study in 2018 on fish parasites of Lacantún River, Chiapas, Mexico, allocreadiids were collected from the intestine of Atherinella alvarezi and morphological differences with other genera of the family were immediately noted. These differences were corroborated with molecular data and phylogenetic analyses, which indicated that it was a new genus and species. The objective of this study is to describe the new taxon, which we name Mesoamericatrema magnisacculus n. gen., n. sp. as well as to clarify its phylogenetic relationships, host specificity, and geographical distribution. For this, we carried out a meticulous study of the morphology and compared the new taxon with its congeners. We also obtained sequences of the 28S and ITS from the ribosomal RNA region that were used in generating molecular phylogenies and in calculating genetic distances with sequences of other species of Allocreadiidae available in the Genbank. The new genus is mainly characterized by having a very large cirrus sac in relation to the length of its body and nests in a clade that groups Creptotrema, Creptotrematina, Paracreptotrema, Paracreptotrematoides, Pseudoparacreptotrema and Wallinia, all of which have a Neotropical affinity in terms of their geographic and host distribution. Mesoamericatrema n. gen. is the fifth genus of Allocreadiidae to be described in the Americas since 2004, the third discovered in Mexico since 2016, and the first to be described as parasitizing Atheriniformes, which indicates that Middle America is a region where important speciation events have occurred in freshwater fish parasites. [ABSTRACT FROM AUTHOR]

This paper presents a discussion on purview of the immigration issue that develops through the participatory mechanisms of different institutions in the governmental, intergovernmental and civil society areas which featured prominently in the consulting, decision making and ideas-formulation processes that addressed the migratory phenomenon in Mexico (highlighting the think tank experts of migration and the FaithBased Community Organizations). A theoretical analysis of the relational conception of interagency is developed and interpreted as structurally hybrid. This analysis combines material and symbolic practices because it works as an anchor for the political strategies, and it strengthens the rhetoric of dialog, thus creating decision makers and providing imaginary models of the "integrated management of migration". The discussion presented here is complemented by examining the relation between migrants and the institution "Casa del Migrante" in Chiapas, Mexico --which provides them humanitarian aid--, and by recovering information from the study case, applied at the time of their traffic by the southern border and within the focused groups. [ABSTRACT FROM AUTHOR]

This paper identifies conditions of social vulnerability and climate-related disaster risk in the Huehuetán River basin, Chiapas, Mexico and analyses the capacity of small coffee producers to adapt to hydrometeorological hazards. Small-scale farmers in the basin use various strategies to adapt to the impacts of such hazards and to confront the deterioration of their livelihoods, including diversifying the varieties of coffee they cultivate, diversifying their sources of income, and emigration. Analysis of these strategies suggests that high levels of poverty, coffee monoculture, food insecurity, and instability in sources of employment and income combine to limit the flexibility and stability of population's adaptive capacity. The strategies employed by local people have allowed for short-term subsistence but offer little chance of long-term sustainability. Conditions do not appear to reduce social vulnerability and, in fact, undermine local resilience that would reduce damage and risks from extreme climate events. The impacts of climate change are placing the region's small farmers in a very vulnerable situation from which it may be difficult to escape, without the implementation of social reform predicated on greater justice and social equality, which will require political will. This case illustrates the challenges that must be addressed in order to overcome the social inequalities that prevent small-farmer communities from reducing their vulnerability in the face of climate-(or non-climate-) related risks. [ABSTRACT FROM AUTHOR]

RESUMO – O jornalismo empreendedor, que se multiplicou em diferentes partes do mundo, apresenta suas próprias nuances em cada país. Neste trabalho analisamos oito projetos jornalísticos de dois estados do México, Chiapas e Jalisco; o primeiro, o mais pobre do país e de menor acesso à internet, e o segundo, dos mais desenvolvidos no plano econômico, com mais teledensidade e maior contribuição ao PIB nacional. Os resultados obtidos em ambas as entidades são projetos jornalísticos empreendedores ainda não consolidados que exploram diferentes formas de receitas, como convenções publicitárias institucionais, em primeiro lugar, e de forma mais marginal, publicidade comercial, monetização digital, e apoio solidário de leitores e de fundações. Em Chiapas, os projetos se caracterizam por serem iniciativas unipessoais, enquanto em Jalisco surgem dentro do novo cooperativismo que experimenta o jornalismo digital. ABSTRACT – Entrepreneurial journalism, which has multiplied in different parts of the world, has its own nuances in each country. In this paper we analyze eight journalistic projects in two states of Mexico, Chiapas and Jalisco; the first, the poorest in the country and with less access to the internet, and the second, of the most developed in the economic plane, with more teledensity and greater contribution to the national GDP. The results show, in both entities, enterprising journalistic projects not yet consolidated that explore different forms of revenue, such as institutional advertising agreements, first, and more marginally, commercial advertising, digital monetization, and solidarity support from readers and foundations. In Chiapas, the projects are characterized by being unipersonal initiatives, while in Jalisco they arise within the new cooperativism that digital journalism experiences. RESUMEN – El periodismo emprendedor, que se ha multiplicado en diferentes partes del mundo, presenta sus propios matices en cada país. En este trabajo analizamos ocho proyectos periodísticos de dos estados de México, Chiapas y Jalisco; el primero, el más pobre del país y de menor acceso a internet, y el segundo, de los más desarrollados en el plano económico, con más teledensidad y mayor aportación al PIB nacional. Los resultados arrojan, en ambas entidades, proyectos periodísticos emprendedores aún no consolidados que exploran diferentes formas de ingresos, como convenios publicitarios institucionales, en primer lugar, y de manera más marginal, publicidad comercial, monetización digital, y apoyo solidario de lectores y de fundaciones. En Chiapas, los proyectos se caracterizan por ser iniciativas unipersonales, mientras que en Jalisco surgen dentro del nuevo cooperativismo que experimenta el periodismo digital.

Results of an aquatic beetle survey at Volcán Tacaná, Mexico, are presented with five altitudinal levels in a monthly sampling regime, aiming to estimate both diversity and altitudinal distribution patterns of the aquatic beetle fauna. The first list of aquatic beetle species from this mountain is presented, comprising 40 species in 32 genera and nine families, with four species recorded for the first time from Mexico and six recorded for the first time from Chiapas. The aquatic beetle fauna is characterized by Elmidae with 20 species, Dytiscidae with eleven species, Dryopidae with three, and Epimetopidae, Hydraenidae, Hydrophilidae, Gyrinidae, Lutrochidae, and Noteridae with one species each. The species composition through the sampled altitudinal gradient (670-1,776 m) was not homogeneous, with the elmid genera Macrelmis, Heterelmis, Microcylloepus, and Austrolimnius present at all levels, while Hexanchorus, Neoelmis, and Onychelmis were present at levels 1-3 (673-1,214 m); dytiscids were mostly present at levels 4 and 5 (1,619-1,776 m), and dryopids were present only at levels 1-3. A Parsimony Analysis of Endemicity supports a general partition between altitudinal levels 1-3 and levels 4 + 5. [ABSTRACT FROM AUTHOR]

This paper describes a sclerobiont association from the Paso Hondo Formation (Roadian, middle Permian), Chiapas, Mexico. Different marine invertebrates such as hederelloids, microconchids, bryozoans, and crinoids (represented by holdfasts) encrusted brachiopod shells belonging to Athyridida and Rhynchonellida. This association is similar to those recorded in different Devonian localities, especially by the co-occurrence of microconchids, hederelloids, and bryozoans. Paleoecological analysis revealed that bryozoans were the most abundant sclerobionts, whereas crinoid holdfasts were uncommon. Likewise, hederelloids and microconchids often settled on hosts previously colonized by bryozoans. Most microconchids encrusted rhynchonellid shells. A positive correlation between the size of the hosts and abundance/diversity of sclerobionts was recorded. The distribution analysis suggests that sclerobiont colonization could have been influenced either by inhalant currents of brachiopods, time of exposure, position of hosts, or by combination of all these factors. Moreover, most of commissures and foramens of brachiopods were not covered by epibionts, suggesting that there was a live interaction. Thus, studied brachiopods were likely encrusted syn vivo, and the interaction between sclerobionts and their brachiopod hosts was likely commensal since there is no damage to the brachiopod valves in the form of malformations or borings. On the contrary, the epibiont cover might have served as a natural shield against predators and parasites. The Roadian age of the association is based on the stratigraphic distribution of host brachiopods. The studied association inhabited open waters on a homoclinal carbonate ramp in the Chicomuselo region. Although encrusted brachiopods belong to the biotic Grandian Province, similar sclerobiont communities have not been previously recorded from the Permian of North America or beyond. The described community represents the youngest record of co-occurring microconchids, hederelloids, and bryozoans, as all previously known similar communities originate from the Late Devonian.