Bodegas, un sitio de pescadores durante el periodo Tardío en el norte del Alto Magdalena - Colombia

The results presented below are part of the project entitled “Archaeological study of the impact of pre-Columbian fishing in the area of rapids of the Magdalena River, during the later period (vii to xvi century AD)” Colciencias - Universidad National de Colombia (Bogotá), carriedout by the research group in Archeology and Environment of the Institute of Natural Sciences. This project aimed to approach archaeological issues in the area of influence the Magdalena River rapids. Here, we studied archaeozoological and archaeoichthyological remains, particularly those associated with analysis of landscape units and the cultural contexts provided by the study of ceramics and stone industries. In this study, we present results of our research conducted at the site of Bodegas 1, dated in the xi century ad. The analyzes suggest that the settlement established some houses and orchards on the edge of a mean alluvial terrace located next to the river, where favorable fishing locations exist, particularly of fish species that carry out intense migrations during two annual periods. The changes in the frequencies and the decrease in size of some fish species could be related to the beginning of drier periods that affected their vulnerability.Los resultados que se presentan a continuación forman parte del proyecto titulado “Estudio arqueológico del impacto de la pesca precolombina en la zona de raudales del río Magdalena, durante el periodo Tardío (siglos xi al xii d. C.)” Colciencias - Universidad Nacional de Colombia (Sede Bogotá), desarrollado por el grupo de investigación Arqueología y Ambiente del Instituto de Ciencias Naturales. Este proyecto se propuso abordar la problemática arqueológica del área de influencia de la zona de los raudales del río Magdalena, mediante el estudio de los restos de fauna y, particularmente, de peces migratorios, asociados al análisis de las unidades de paisaje y los contextos culturales que proporcionan el estudio de los materiales cerámicos y de las industrias líticas. Los resultados obtenidos en el sitio de Bodegas 1 indican que fue ocupado por grupos humanos del periodo Tardío en el siglo xi d. C. Los análisis arqueológicos y los estudios de los suelos sugieren que establecieron algunas viviendas y pequeñas huertas sobre el borde de una terraza aluvial media próxima al río, donde se localizan lugares favorables para la pesca, en particular de especies que realizan migraciones intensas durante dos épocas anuales. Los cambios en las frecuencias y la disminución en las tallas de algunas especies de peces podrían estar relacionados con el inicio de periodos más secos que incidieron en su vulnerabilidad

Seroprevalence of bovine viral diarrhea virus (BVDV) in cattle from Sotaquirá, Colombia

Worldwide distributed Bovine Viral Diarrhea Virus (BVDV) represents a high risk of infection in most bovine farms, in which it is associated with gastrointestinal, respiratory, and reproductive diseases. The purpose of this research was to establish the seroprevalence and the main risk factors associated with the presentation of BVDV in the municipality of Sotaquirá, Colombia. Samples were taken from 1000 cattle of Holstein, Ayrshire, Jersey, Normande Gyr and Holstein x Gyr. Epidemiological surveys were implemented, reproductive and management variables were taken into consideration. Indirect ELISA was performed to detect specific antibodies against BVDV using the commercial kit SERELISA® BVD p80 Ab Mono Blocking. The overall seroprevalence of antibodies against BVDV was 42.5% (425/1000), where the Gyr breed (59.1% apparent prevalence (AP); 60.3% real prevalence (PR)) and the age group > 4 years (53.0% PA; 54.4% PR) presented the highest seroprevalences. A significant statistical association was found for the breed, age, management practices evaluated and the presentation of PI3 (p ≤ 0.05). Age group > 4 years, Normande breed, presentation of PI3 and grazing lease were established as risk factors associated with BVDV in the herds. These infections are mainly associated with dairy cattle and herds with many animals, so it is important to consider vaccination plans as a preventive system and follow up on the most common diseases

Diagnóstico coproparasitológico de fascioliasis en ovinos y caprinos de Boavita, Boyacá (Colombia)

The aim of this study was to establish the prevalence of Fasciola hepatica through coprological analysis and to identify risk factors associated with the presentation of the parasite in sheep and goats in the municipality of Boavita, Boyacá. The study was observational, descriptive, cross-sectional with simple random sampling. Faecal samples were taken from 297 sheep and 337 goats to identify parasite eggs. The general prevalence was 8.0% (51/634), being 9.1% for sheep and 7.1% for goats. The prevalence in sheep was higher in males (14.8%) than in females (8.5%), likewise, sheep less than one year old (9.3%) and Criolla (11.1%) presented the highest prevalence. In goats, the prevalence was higher in females (7.3%) than in males (5.6%), and those less than one year old (10.5%) and the Alpine breed (8%) presented the greater prevalence. No significant statistical association was found between females and males. The Creole breed was established as a risk factor for sheep.El objetivo del estudio fue establecer la prevalencia de Fasciola hepatica mediante análisis coprológico e identificar factores de riesgo asociados a la presentación del parásito en ovinos y caprinos del municipio de Boavita, Boyacá. El estudio fue observacional, descriptivo de corte transversal con muestreo aleatorio simple. Se tomaron muestras de materia fecal a 297 ovinos y 337 caprinos para identificar los huevos del parásito. La prevalencia general fue de 8.0% (51/634), siendo de 9.1% para ovejas y de 7.1% para cabras. La prevalencia en ovinos fue mayor en machos (14.8%) que en hembras (8.5%); asimismo, los ovinos menores a un año (9.3%) y de Criolla (11.1%) presentaron las prevalencias más altas. En las cabras, la prevalencia fue mayor en hembras (7.3%) que en machos (5.6%), y los menores a un año (10.5%) y de la raza Alpina (8%) presentaron las prevalencias más altas. No se encontró asociación estadística significativa entre hembras y machos. La raza Criolla se estableció como factor de riesgo para los ovinos

Destructive fishing: An expert-driven definition and exploration of this quasi-concept

Data availability statement: Data that breaches the anonymity of responses in this study cannot be made available. Some anonymised and summary data can be found in the Supplementary Information.Data Availability Statement: Data that breaches the anonymity of responses in this study cannot be made available. Some anonymized and summary data can be found in the Supplementary Information.Code Availability Statement: Code for the figures and certain analyses used in this manuscript can be found at https://github.com/arlie-m/destructive_fishing_defintion_delphi.Supporting Information is available online at: https://conbio.onlinelibrary.wiley.com/doi/10.1111/conl.13015#support-information-section .Numerous policy and international frameworks consider that “destructive fishing” hampers efforts to reach sustainability goals. Though ubiquitous, “destructive fishing” is undefined and therefore currently immeasurable. Here we propose a definition developed through expert consultation: “Destructive fishing is any fishing practice that causes irrecoverable habitat degradation, or which causes significant adverse environmental impacts, results in long-term declines in target or nontarget species beyond biologically safe limits and has negative livelihood impacts.” We show strong stakeholder support for a definition, consensus on many biological and ecological dimensions, and no clustering of respondents from different sectors. Our consensus definition is a significant step toward defining sustainable fisheries goals and will help interpret and implement global political commitments which utilize the term “destructive fishing.” Our definition and results will help reinforce the Food and Agricultural Organization's Code of Conduct and meaningfully support member countries to prohibit destructive fishing practices.Cambridge Conservation Initiative. Grant Number: CCI-05-20-009; Helmholtz Institute for Functional Marine Biodiversity (HIFMB) at the University of Oldenburg; Brunel University London; Alfred-Wegener-Institute for Polar and Marine Research; Arcadia; Rothschild Foundation; A.G. Leventis Foundation; Isaac Newton Trust; Prince Albert II of Monaco Foundation

Underrepresented, understudied, underserved: Gaps and opportunities for advancing justice in disadvantaged communities

A common approach in scientific research and policy is a commitment to develop projects or legislation trying to improve problems experienced by low-income and rural communities; however, lack of interaction with community members during the process tends to produce unsatisfactory results. We visited disadvantaged communities in the San Joaquin Valley of California and interviewed local stakeholders (community members and leaders, policy advocates, attorneys, and educators). Then we analyzed a corpus related to disadvantaged communities from a pool of California-related publications containing 154,000 scientific papers, 2.6 million newspaper articles, and 11,000 state legislation bills from 2017 to 2020 to estimate the frequency and quality of disadvantaged community representation. Here we present our findings describing the biases and gaps of knowledge by scientific papers, California newspaper articles, and legislation bills with respect to disadvantaged communities in California, and we suggest opportunities for scientists, media communicators, and policymakers to amplify the voices of these stakeholders. In all corpus categories, disadvantaged communities are underrepresented: about one in four Californians live in disadvantaged communities, but only one in 2000 news articles and scientific papers cover them. The concerns and priorities of disadvantaged communities do not match the public perspective of them depicted by the corpus. Developing effective policies requires addressing place-specific nuances and co-occurrence of structural inequities in partnership with local stakeholders. Holistic coverage in newspapers and community-based approaches are necessary platforms to increase awareness and sensibility about disadvantaged communities, helping tailor policy solutions, and building the political leverage needed to implement them

Water, environment, and socioeconomic justice in California: A multi-benefit cropland repurposing framework

Low-income, rural frontline communities of California's Central Valley experience environmental and socioeconomic injustice, water insecurity, extremely poor air quality, and lack of fundamental infrastructure (sewage, green areas, health services), which makes them less resilient. Many communities depend financially on agriculture, while water scarcity and associated policy may trigger farmland retirement further hindering socioeconomic opportunities. Here we propose a multi-benefit framework to repurpose cropland in buffers inside and around (400-m and 1600-m buffers) 154 rural disadvantaged communities of the Central Valley to promote socioeconomic opportunities, environmental benefits, and business diversification. We estimate the potential for (1) reductions in water and pesticide use, nitrogen leaching, and nitrogen gas emissions, (2) managed aquifer recharge, and (3) economic and employment impacts associated with clean industries and solar energy. Retiring cropland within 1600-m buffers can result in reductions in water use of 2.18 km3/year, nitrate leaching into local aquifers of 105,500 t/year, greenhouse gas emissions of 2,232,000 t CO2-equivalent/year, and 5388 t pesticides/year, with accompanying losses in agricultural revenue of US$4213 million/year and employment of 25,682 positions. Buffer repurposing investments of US$27 million/year per community for ten years show potential to generate US$101 million/year per community (total US$15,578 million/year) for 30 years and 407 new jobs/year (total 62,697 jobs/year) paying 67 % more than prior farmworker jobs. In the San Joaquin Valley (southern Central Valley), where groundwater overdraft averages 2.3 km3/year, potential water use reduction is 1.8 km3/year. We have identified 99 communities with surficial soils adequate for aquifer recharge and canals/rivers within 1600 m. This demonstrates the potential of managed aquifer recharge in buffered zones to substantially reduce overdraft. The buffers framework shows that well-planned land repurposing near disadvantaged communities can create multiple benefits for farmers and industry stakeholders, while improving quality of life in disadvantaged communities and producing positive externalities for society