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514 resultados encontrados para: TEMA: Othón P. Blanco (Quintana Roo, México)
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1.
Libro
Chetumal, Quintana Roo, México / Francisco Bautista Pérez
Bautista Pérez, Francisco ;
Chetumal, Quintana Roo, México : Gobierno del Estado de Quintana Roo. Fondo de Fomento Editorial , s.f.
Clasificación: Q/972 / B31/V. 1
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030005008 (Disponible)
Disponibles para prestamo: 1

2.
Libro
Instituto tecnológico de Chetumal: catálogo de carreras
México. Secretaría de Educación Pública. Instituto Tecnológico de Chetumal ;
Chetumal, Quintana Roo, México : Secretaría de Educación Pública. Instituto Tecnológico de Chetumal , s.f.
Clasificación: C Q/378.7267 / I5
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030005151 (Disponible)
Disponibles para prestamo: 1

3.
- Artículo con arbitraje
Ordenamiento territorial, agua subterránea y participación sociopolítica en Bacalar, Quintana Roo, México
Ibarra Madrigal, Silvana Marisa (autora) ; Gracia, María Amalia (autora) ; Schmook, Birgit Inge (autora) ; Hernández Arana, Héctor Abuid (autor) ;
Disponible en línea
Contenido en: Sociedad y Ambiente Número 22 (marzo-junio 2020), páginas 265-292 ISSN: 2007-6576
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

A partir de un estudio interdisciplinario sobre la participación sociopolítica en la formulación del Programa de Ordenamiento Ecológico Local (POEL) de Bacalar, analizamos las motivaciones y dificultades para considerar la "vocación natural” de este territorio, es decir, la capacidad que tiene para sustentar las actividades de los diversos seres vivos que lo habitan, partiendo del hecho de que se trata de un sistema kárstico. Para incluir dicha consideración, el equipo de investigación implementó una estrategia de investigación-acción (IA) que consistió en elaborar un modelo de conectividad hidrogeológica y sumarse a las gestiones para la configuración de este instrumento de política pública. Desde un enfoque socioambiental, la investigación incluyó técnicas etnográficas como entrevistas, observación participante y diario de campo. Los resultados muestran que algunas de las representaciones territoriales de los actores son incompatibles con las características del sistema kárstico y plantean la necesidad de una política participativa, orientada a la construcción de una visión común del territorio mediante procesos de socialización del conocimiento entre los actores y los sectores involucrados. Entre las limitantes de la IA se encontró que, a pesar de lograr la convergencia de sectores, se mantuvo la dinámica inercial que hasta ahora ha impedido la entrada en vigor del POEL en un espacio cada vez más codiciado y en riesgo para el ecosistema y quienes lo habitan.

Resumen en inglés

Based on an interdisciplinary study of sociopolitical participation in the formulation of the Bacalar Local Ecological Zoning Program (Spanish acronym POEL), we analyze the motivations and difficulties of considering the “natural vocation” of this territory, in other words, its ability to sustain the activities of the various living beings that inhabit it, given that it is a karst system. To include this consideration, the research team implemented an action research (AR) strategy that involved developing a hydrogeological connectivity model and joining the efforts to configure this public policy instrument. From a socioenvironmental perspective, the research included ethnographic techniques such as interviews, participant observation, and a field diary. The results show that some of the territorial representations of the actors are incompatible with the characteristics of the karst system, suggesting the need for a participatory policy designed to build a common view of the territory through the socialization of knowledge between the stakeholders and the sectors involved. Among the limitations of AR, it was found that, despite achieving the convergence of sectors, the inertial dynamics, which have so far prevented the entry into force of POEL in an increasingly coveted, at-risk space for the ecosystem and those who inhabit it, remain in place.


4.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Abundance, distribution, and secondary production of the apple snail Pomacea flagellate (Say, 1829) in Bacalar Lake, a tropical karstic system in southern Mexico
De Jesús Navarrete, Alberto (autor) ; Ocaña Borrego, Frank Alberto (autor) ; Oliva Rivera, José Juan (autor) ; Jesús Carrillo, Rosa M. de (autor) ; Vargas Espósitos, Abel Abraham (autor) ;
Contenido en: Studies on Neotropical Fauna and Environment Vol. 54, no. 1 (2019), p. 1–9 ISSN: 1744-5140
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Pomacea flagellata is a gastropod conspicuous in freshwater environments, and represents a fishing resource. To assess their abundance, distribution, and secondary production, monthly samplings were carried out in Bacalar Lake from June 2012 to May 2013 at 12 sampling sites. In each site, three random transects were marked parallel to the shore. All snails on transect were collected and shell length and wet weight measured. The highest density occurred in September (1.27 ind.m−²), lowest in October (0.47 ind.m−²). Shell lengths ranged from 2 to 56 mm, with recruitment in January–March. Growth parameters were L∞ 59.50 mm, K 0.65.year−¹; the lifetime span was 3 years. Average biomass reached 5.57 wet g.m−² and secondary production was 6.025 wet g.m−². year-¹ ; annual renewal rate P/B 1.08. Highest abundance and secondary production was contributed by individuals between 31 and 41 mm in length. A potential biomass of 25.06 tons of snails was estimated in the lake. Snail densities, secondary production, and turnover were very low during the year, indicating that it is not viable to consider a commercial catch without affecting the population. A ban of 10 years is proposed, and aquaculture practices of snails are recommended to recover the resource.


5.
- Tesis
*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal
Biología reproductiva del pez diablo Pterygoplichthys pardalis (Castelnau, 1855) en el alto Río Hondo, La Unión, Quintana Roo, México / Gabriel Hernández Gómez
Hernández Gómez, Gabriel ; Medina Quej, Alejandro (director) ; Schmitter Soto, Juan Jacobo (director) ;
Chetumal, Quintana Roo, México : Instituto Tecnológico de Chetumal , 2019
Clasificación: TE/597.49097267 / H4
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030008778 (Disponible)
Disponibles para prestamo: 1
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal

6.
Artículo
Changes in the fish community of a western Caribbean estuary after the expansion of an artificial channel to the sea
Schmitter Soto, Juan Jacobo (autor) ; Herrera Pavón, Roberto Luis (autor) ;
Contenido en: Water Vol. 11, no. 12, 2582 (2019), p. 1-17 ISSN: 2073-4441
PDF
Resumen en: Inglés |
Resumen en inglés

Increased connectivity between coastal lagoons and the sea is expected to entail a greater proportion of marine species in the former. Chetumal Bay, estuary of the Hondo river into the Caribbean, had a limited access to the sea until the opening of the Zaragoza Canal. We sought changes in the fish community from 1999–2001 (just after an expansion of the canal) to 2015–2018. The same fishing gear was used, in the same localities, during all seasons. Total fish abundance and mean local richness decreased, although total abundance increased in the polyhaline zone. Diversity was greater in the oligohaline zone in 1999–2001, and in the mesohaline zone in 2015–2018. Three guilds were absent in 2015–2018: Medium-sized herbivores, large piscivores, and medium-sized planktivores. Abundance of small benthivores decreased by decade; medium-sized piscivores and small planktivores became more abundant in 2015–2018 in the polyhaline zone. These changes may be due to the opening of the channel, but illegal fishing outside the bay may explain the decrease in juveniles of large piscivores, and erosion in the innermost part may be destroying important habitats. Our findings can be a reference for similar situations, as coastal development and climate change interact and affect tropical estuaries.


7.
Tesis - Doctorado
Conectividad entre el Mar Caribe y la Bahía de Corozal mediada por la migración del macabí, Albula spp. / Addiel Ubandes Pérez Cobb
Pérez Cobb, Addiel Ubandes (autor) ; Schmitter Soto, Juan Jacobo (director) ; Adams, Aron J. (asesor) ; De Jesús Navarrete, Alberto (asesor) ; Heyman, William D. (asesor) ;
Chetumal, Quintana Roo, México : El Colegio de la Frontera Sur , 2019
Clasificación: TE/597.091309726 / P4
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030008780 (Disponible)
Disponibles para prestamo: 1
PDF
Índice | Resumen en: Español |
Resumen en español

Se utilizó un enfoque de métodos mixtos para determinar los movimientos estacionales y regionales del macabí (A. vulpes) en la Bahía de Corozal-Chetumal (CB) y la Costa del Caribe (CC). Se utilizaron entrevistas, cuestionarios, talleres, observación participante y notas de campo para recopilar el conocimiento local sobre tiempo y dirección del movimiento en relación a la estacionalidad, hábitat, alimentación y reproducción. Tambien se utilizaron experimentos de marcado-recaptura para: a) determinar la frecuencia de tallas, abundancia y distancias de migración; b) modelar movimiento y abundancia en asociación a variables bióticas y abióticas; c) modelar movimiento y supervivencia con modelos multi-estado en el programa MARK. Se encontraron tallas significativamente mayores en CC (35 + 4.9 cm) que en CB (media = 28.6 + 4.1 cm), debido a una posible mayor densidad y diversidad de presas en los fondos de pastos marinos de CC. Los movimientos a lo largo de la costa fueron: 1) locales de corta distancia, norte-sur y sur-norte, en ámbitos hogareños (distancias > 3.5 km), asociados con la alimentación y en secas y lluvias (febrero a octubre) durante altas temperaturas, y 2) migraciones de larga distancia (> 10 km) ida y vuela de este-oeste y oeste-este, entre CB y dos sitios de agregación de pre-desove (APD) en el norte de Belice y durante los nortes (noviembre a enero) cuando las temperaturas fueron más bajas. El movimiento resultó en: a) mayor abundancia de tallas pequeñas (<22 cm) en CB durante secas y lluvias y una mayor abundancia de tallas grandes (> 22 cm) en CC durante nortes, y b) menor sobrevivencia en CB que en CC durante nortes debido a la migración. El macabí como una especie sombrilla tiene implicaciones y se recomienda que Belice y México desarrollen una estrategia binacional de conservación y manejo de los hábitats de forrajeo y APD para mantener poblaciones saludables.

Índice

1.0 Resumen
2.0 Capítulo I
Introducción
2.1 Introducción general
2.2 Objetivos
2.3 Hipótesis
3.0 Capítulo II
Artículo aceptado: Connectivity mediated by seasonal bonefish (Albula vulpes) migration between the Caribbean Sea and a tropical estuary of Belize and Mexico
4.0 Capítulo III
Artículo sometido: Influence of environmental variables on abundance and movement of bonefish (Albula vulpes) between the Caribbean Sea and a tropical estuary of Belize and Mexico
5.0 Capítulo IV
Artículo por ser enviado: Using mark-recapture to estimate survival, recapture probability and movement of bonefish (Albula vulpes) in the Caribbean Sea and a tropical estuary in Belize and Mexico
6.0 Capítulo IV
6.1 Discusión y conclusiones
6.2 Recomedaciones
7.0 Literatura Citada
8.0 Anexos 8.1 Anexo 1: Tabla 1. Diversidad de Albula spp. en la región Atlántico Oeste y la región del Indo-Pacífico
8.2 Anexo 2: Formatos de campo


8.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Connectivity mediated by seasonal bonefish (Albula vulpes) migration between the Caribbean Sea and a tropical estuary of Belize and Mexico
Pérez Cobb, Addiel Ubandes (autor) ; Schmitter Soto, Juan Jacobo (autor) ; Adams, Aaron J. (autor) ; Heyman, William D. (autor) ;
Contenido en: Environmental Biology of Fishes Vol. 102, no. 2 (February 2019), p. 197-207 ISSN: 0378-1909
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Bonefish (Albula vulpes) are an important resource for catch-and-release fishing in the Caribbean Sea. Understanding movements within and between the Caribbean Coast (CC) and Chetumal-Corozal Bay (CB) in Mexico and Belize is crucial for identifying and protecting home ranges, migration routes, pre-spawning and spawning sites. We used a mixed-methods approach to document dynamics of bonefish movement. We collected fishers’ local knowledge (LK) using qualitative methods including workshops, key informant interviews, participant observation and field notes about bonefish seasonal movements. We then used mark-recapture (8816 tagged, 569 recaptured) method to understand bonefish movements by size, location and season. Bonefish were significantly larger in CC than in CB. We documented several seasonal movement patterns. A southward movement within CB during the rainy season was likely driven by salinity changes. This was followed by an eastward long-distance migration during the norths or cold front season between the bay and the Caribbean Sea, likely for spawning, as we document likely spawning readiness, pre-spawning behavior and synchronized to the fore-reef at one of two pre-spawning aggregation sites in a World Heritage Site in the CC of Belize during November and December of 2018. There was then a northward movement during the dry season as a journey back to home ranges. The information presented herein can inform resource management and protected areas planning towards a bi-national conservation and management of bonefish and its habitats.


9.
- Artículo con arbitraje
Distribución y abundancia del gavilán caracolero (Rostrhamus sociabilis) y la correa (Aramus guarauna), y su interacción con la chivita (Pomacea flagellata) en la Laguna de Bacalar, Quintana Roo, México
Correa Sandoval, Jorge (autor) ; García Reynoza, Xanny Lenisse (autora) ;
Contenido en: Huitzil, Revista Mexicana de Ornitología Vol. 20, no. 1, e-457 (enero-junio 2019), p. 1-13 ISSN: 1870-7459
Resumen en español

Los factores intrínsecos como la migración y la inmigración, y externos como la competencia por alimento con otras especies limitan a las poblaciones de aves. El gavilán caracolero (Rostrhamus sociabilis) y la correa (Aramus guarauna) se distribuyen en el mismo hábitat y ambas se alimentan casi exclusivamente de caracoles del género Pomacea. En este documento reportamos la distribución y abundancia de ambas especies de aves así como el tamaño de presa utilizado por éstas en la Laguna de Bacalar, en Quintana Roo, México. De junio de 2012 a agosto de 2013 realizamos 10 salidas de campo, recorrimos 36 transectos de 500 m de longitud. Registramos 319 gavilanes caracoleros. La abundancia extrapolada promedio mensual fue de 63.3 ± 46.2 individuos. Registramos 181 adultos, 87 juveniles y 66 individuos indeterminados. Los gavilanes siempre estuvieron presentes en toda la laguna. Registramos 339 correas en los transectos. La abundancia extrapolada promedio mensual fue de 73.3 ± 82.8 individuos. Las correas siempre estuvieron presentes en toda la laguna. Tuvimos evidencia de selección de caracoles respecto a las presas disponibles en su hábitat. La longitud sifonal (LS) promedio de los caracoles consumidos fue de 37 ± 0.56 (n = 4312). La LS más pequeña depredada fue de 17 mm y la mayor de 55 mm y, de las disponibles en el ambiente, la LS promedio fue 33 ± 2.82 mm. Recomendamos realizar estudios detallados sobre la ecología reproductiva y alimenticia de estas dos especies de aves así como estudios de consumo humano de los caracoles chivita en la Laguna de Bacalar y proponer medidas de manejo y conservación.

Resumen en inglés

Bird populations are limited by internal factors such as immigration and migration as well as external factors such as competing for food with other species. The Snail-Kite (Rostrhamus sociabilis) and the Limpkin (Aramus guarauna) share their habitat both of them feed almost exclusively in Apple-Snails (Pomacea). In this document we report on the distribution and abundance of both species, as well as their preferred size of prey at Laguna Bacalar in Quintana Roo, Mexico. From June 2012 to August 2013 we conducted 10 field expeditions and surveyed 36 transects of 500 m each. Snail-Kites and Limpkins were always present in Laguna Bacalar. We observed 319 Snail-Kites; 181 adults, 87 juvenile and 66 indeterminate sex birds. Of the adults 67% were males and 33% female. Their monthly average abundance was 63.3 ± 46.2 individuals. As for the Limpkins, 339 were recorded; their monthly average abundance was 73.3 ± 82.8 individuals. We found evidence of prey selection by size compared with the snails available in the lagoon. Average siphonal length (LS) of snails consumed was 37 ± 0.56 mm. (n= 4312). The smallest LS depredated was 17 mm and the largest of 55 mm. Of snails available in the environment, the average LS was 33 ± 2.82 mm. We recommend further research be conducted on diet and reproductive ecology of both species and on the human consumption of snails in order to provide advice for their management and conservation.


10.
Artículo
PDF
Resumen en: Inglés |
Resumen en inglés

Macro-invertebrate diversity in silvopastoral systems of Southern Quintana Roo, Mexico. The diversity of macro-invertebrates is related to the state of disturbance of the soil, caused mainly by the land-use change for agricultural activities. A strategy for the conservation of these organisms is the implementation of diversified production systems such as silvopastoral systems. However, in the Southeast of Mexico, information is still limited. The aim of the present study was to evaluate and compare the richness, abundance and composition of macro-invertebrates in four contrasting agro-ecosystems: two silvopastoral systems made of Leucaena leucocephala and associated pastures (i.e. Panicum maximum cv mombaza and Cynodon plectostachyus ), a pasture of Brachiaria brizantha with scattered trees in low density and, a medium-statured tropical dry forest. In each system, an area of one hectare was delimited and a transect of 50 m in length was established in which five pit-fall traps were placed every 10 m. The sampling was carried out in February and May of 2018 and in each month five collections were made with five-day intervals. A total of 1 737 organisms belonging to 10 orders of the class Insecta and one of the class Gastropoda were collected.

The medium-statured tropical dry forest (923 individuals) and the silvopastoral systems of L. leucocephala with C. Plectostachyus (354 individuals) show the highest abundance of macro-invertebrates. The most abundant genera were: Hymenoptera, Coleoptera, Aracninae and Orthoptera. The higher macro-invertebrate diversity was found in the silvopastoral systems of L. leucocephala with P. maximum (H ‘= 1.58) and L. leucocephala with C. plectostachyus (H’ = 1.44). The results show that livestock systems managed with woody components (trees or shrubs) are home of an important abundance and richness of macro-invertebrates, compared to tropical forests. This diversity of macro-invertebrates may contribute to the integrity and functionality of the agro-ecosystems.