Determination of the main agricultural crops for the Metropolitan Puebla-Tlaxcala area using the Papadakis Methodology

Objective: The objective of this study is the application of methods to identify areas with potential for agricultural   Design/methodology/approach: The process was through calculations using monthly data, applying the Papadakis Methodology that was obtained in April 2022 from the database of the Mexican Institute of Water Technology (IMTA); Results: Potential areas were identified within the study area, through the Papadakis classification that contemplated five categories for crops such as: Optimal, very adequate, adequate, acceptable and unacceptable areas.   Limitations on study/implications:   It is desirable that the technological tools applied to agriculture can be easily exploited to achieve better results, proposing potential areas for peri-urban urban areas.   Findings/conclusions:   One of the major concerns for the Food and Agriculture Organization of the United Nations (FAO) is the loss of soils suitable for agricultural production. Peri-urban urban agriculture (UPA) takes relevance in the production of available food as an irreplaceable tool in the context of food and sustainability in urban areas. According to the present, this type of UPA is seeking to be recognized by political agendas and that the production obtained by this type of agricultural system can have a market where it can be offered. In addition to being considered as an alternative for the food security of the most unprotected localities in urban areas.agricultural crops in the Puebla-Tlaxcala Metropolitan Area (ZMPT). Design/methodology/approach: From April to June 2022, the classification process for identifying the main crops in the ZMPT was conducted. This process utilized monthly climatic data from the Mexican Institute of Water Technology (IMTA), analyzed through the Papadakis methodology (1970). Subsequently, the results were mapped using the Weighted Overlay (WO) tool in ArcGIS v.10.2. Results: The Papadakis methodology identified 10 seasonal crop types, particularly for summer and winter. The WO tool categorized potential areas into five classes: optimal, highly suitable, acceptable, and unacceptable for the establishment of several crops. Limitations on study/implications: This study has limitations due to incomplete and scarce databases and the complexity and cost associated with the software used. However, the implications for agriculture include the potential to enhance and diversify agricultural production by identifying optimal areas for establishment, especially in urban-peri-urban agricultural areas (UPAs). Findings/conclusions: This study successfully identified the main crops cultivated in the ZMPT and highlighted potential areas for their establishment. The generated cartographic information enables the strategic distribution of productive agricultural systems, particularly in UPAs, to adapt to regional climate fluctuations in the short, medium, and long term. Besides, an adequate distribution in the implementation of productive agricultural systems, particularly in UPAs, depending on fluctuations in the climatic conditions of the region

Global Trends in Blue Carbon Research in Mangroves

Objective: Identify the central themes and research trends on blue carbon in mangroves through bibliometric analysis of the existing global scientific literature. Design/methodology/approach: A total of 1,128 scientific papers obtained from Scopus for the period 1986-2023 were analyzed. The Bibliometrix package in R studio and VOSviewer were used for processing. Results: Results from a total of 4,602 authors, 94 countries, 64 subject areas and 346 journals indicated an exponential growth (R2= 0.99) in mangrove carbon research. The most productive author, country, subject area, and journal were Lovelock, L. C., United States of America, environmental sciences, and Science of The Total Environment, respectively. The studies focused on four thematic areas: carbon storage, sedimentation, blue carbon dynamics, as well as climate change and anthropogenic impact. Topics related to blue carbon, carbon storage, climate change, restoration and remote sensing are of current interest to the scientific community. Limitations on study/implications: Scopus covers a large number of peer-reviewed journals, but may omit some relevant research on the topic. Although the main research topics were identified, deeper information on each research topic is still needed. Findings/conclusions: The four relevant global issues on blue carbon research in mangroves were identified, which can serve as a roadmap for researchers to orient effort and budget for future scientific research in a timely manner.Objective: To identify the central themes and research trends on blue carbon in mangroves through a bibliometric analysis of the existing global scientific literature. Design/Methodology/Approach: A total of 1,128 scientific documents from the period 1986-2023 were analyzed, obtained from the Scopus database. The Bibliometrix package in R Studio and VOSviewer were used for processing. Results: The results, encompassing 4,602 authors, 94 countries, 64 research areas, and 346 journals, indicated an exponential growth (R² = 0.99) in mangrove carbon research. The most productive author, country, research area, and journal were Lovelock, L. C., the United States of America, environmental sciences, and Science of The Total Environment, respectively. The studies focused on four thematic clusters: carbon storage, sedimentation, carbon dynamics, and climate change and anthropogenic impact. Topics related to blue carbon, carbon stores, climate change, restoration, and remote sensing are currently of significant interest to the scientific community. Study Limitations/Implications: While Scopus covers a vast number of peer-reviewed journals, it may omit some relevant research on the topic. Although the main research themes were identified, more in-depth information on each of them is still needed. Findings/Conclusions: Four globally relevant themes in blue carbon research in mangroves were identified, providing a roadmap for researchers to strategically direct efforts and funding in future scientific investigations

Habitat characteristics of the Montezuma quail (Cyrtonyx montezumae Vigors 1830) in Durango, México

Objective. To characterize the habitat of the Montezuma quail (Cyrtonyx montezumae) in Rancho Chapultepec, Durango, Mexico.Design/Methodology/Approach. From February to October 2020, fieldwork was carried out to search for Montezuma quail sites using transects and sounds. Subsequently each site-of-use was characterized; for each of them three random sites were located. Intercept lines (or Canfield), embedded frames, and nearest neighbour techniques were used. Recorded data were analysed using Principal component analysis (PCA); Frequency ofobservation (FO); Kruskal-Wallis; and Poisson regression (PR).Results. The PCA showed values for sites of use= 48, non-use= 43, and both= 36 of the present variability in vegetation-habitat variables. FO showed values per site of use = 6.25%; non-use = 2.08% and both = 1.56%; and per species in sites of use = 3.57, non- use = 3.85 and both = 3.33%. Kruskal-Wallis exhibited significant differences in richness and abundance and similarity in diversity. Poisson regression (PR) showed the effect of some vegetation-habitat variables on the Montezuma quail.Limitations /Implications of the study. The monitoring period evaluated only comprised a short space of time. It is suggested to extend the sampling time, allowing to visualize the population fluctuation regarding this variable.Findings/Conclusions: It was possible to determine that there is an association between the variables of the vegetation-habitat with the presence of C. montezumae. Vegetation type is the variable that determines the incidence of this species

Multifunctionality in maize production systems in the Mixteca Alta region of Oaxaca: Multifunctionality in corn production systems in the mixteca alta region Oaxaca

ABSTRACT Objective: Infer the role of multifunctionality of milpa systems in the high Mixtec region of Oaxaca, Mexico. Design/methodology/approach: the methodological framework of the Index of Multifunctionality of Agricultural Production Systems (IMSPA) was used, applying semi-structured interviews to producers. Results: the level of multifunctionality of each of the corn systems evaluated was determined, highlighting the Milpa Interspersed with Fruit Trees as the system with the highest multifunctionality and potential attributes for local development. Limitations on study/implications: The paradigm of some producers to the change in their plots, usually leads to a negativity in participation and mistrust in this type of research. Findings/conclusions: It is necessary to follow up on multifunctionality evaluations, there are systems that are in a line where they can advance or regress in terms of their functions.Objective: To infer the role of multifunctionality in the milpa systems of the Mixteca Alta region of Oaxaca, Mexico. Design/Methodology/Approach: The methodological framework of the Multifunctionality Index of Agricultural Production Systems (IMSPA) was used, applying semi-structured interviews to producers. Results: The multifunctionality level of each evaluated systems was determined and the Milpa Intercropped with Fruit Trees (MIAF) showed the greatest multifunctionality and potential attributes for local development. Study Limitations/Implications: The resistance among producers to make changes in their plots usually leads to a refusal to participate and to mistrust this type of research. Findings/Conclusions: It is necessary to follow up on multifunctionality evaluations, since some systems are at a point where their functions can advance or regress

Distribución potencial del tecolote moteado mexicano (Strix occidentalis lucida Nelson 1903) en Aguascalientes, Durango, Jalisco y Zacatecas, México: POTENCIAL DISTRIBUTION OF MEXICAN SPOTTED OWL (STRIX OCCIDENTALIS LUCIDA, NELSON 1903) IN AGUASCALIENTES, DURANGO, JALISCO AND ZACATECAS, MEXICO

The mexican spotted owl (Strix occidentalis lucida) is a threatened species in the United States and Mexico, the lack of studies throughout its range and habitat loss limits their conservation. The aim of this study was to estimate the potential distribution of this species in a portion of central Mexico. For this, we use the algorithm Maxent and ArcMap software using 21 presence records of owls, 19 bioclimatic layers, 4 layers of the digital elevation model, one cover layer and one of vegetation and land use layer. Cover, vegetation, elevation, precipitation and temperature were the variables that explained the resulting potential distribution model. Zacatecas had the highest surface with very high probability of distribution. Maxent appears to be a useful management tool for indicating the distribution of Strix occidentalis lucida; however, to validate the results, it is necessary to verify the field presence of the species at the sites indicated by this model. Keywords: potential habitat, conservation tool, presence predictionEl tecolote moteado mexicano (Strix occidentalis lucida) es una especie amenazada en Estados Unidos y México, la falta de estudios en todo su ámbito de distribución y la creciente pérdida de hábitat, limita su conservación. El objetivo de este estudio fue estimar la distribución potencial de esta especie en una porción del centro de México. Para ello, se usó el algoritmo Maxent y el software ArcMap utilizando 21 registros de presencia del tecolote, 19 capas bioclimáticas, 4 capas del modelo digital de elevación, una de cobertura, y una de vegetación y uso de suelo. La cobertura, vegetación, elevación, precipitación y temperatura fueron las variables que más explicaron el modelo de distribución potencial. Zacatecas presentó la mayor superficie con muy alta probabilidad de distribución. Maxent parece ser una herramienta útil para definir la distribución de Strix occidentalis lucida; sin embargo, para validar sus resultados, es necesario comprobar en campo la presencia de esta especie en los sitios indicados por este modelo