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901 resultados encontrados para: TEMA: Centroamericanos
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1.
Libro
Das pantheon der maya / Ferdinand Anders
Anders, Ferdinand ;
Austria : Akademische druck- u. Verlagsanstalt , s. f
Clasificación: CH/306.6728 / A5
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
SFA000991 (Disponible)
Disponibles para prestamo: 1

2.
Libro
La iglesia en Centroamérica: Guatemala, El Salvador, Honduras y Nicaragua : información y análisis / Colectivo de Análisis de Iglesias en Centroamérica
Colectivo de Análisis de Iglesias en Centroamérica ;
México : Colectivo de Análisis de Iglesias en Centroamérica , s.f.
Clasificación: G/261.830972 / C6
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
SFA002044 (Disponible)
Disponibles para prestamo: 1

3.
Libro - Informe técnico
Informe técnico del proyecto investigadores PROMECAFE/ANACAFE-GUATEMALA periodo marzo 1995 - febrero 1996
Programa Cooperativo para la Protección de la Caficultura (Guatemala) ;
[Guatemala, Guatemala] : Programa Cooperativo para la Protección de la Caficultura , s.f.
Clasificación: AC/633.73 / P7
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
ECO010009409 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020009701 (Disponible) , ECO020004635 (Disponible)
Disponibles para prestamo: 2

4.
Libro
Palms of Central America and Mexico as a source of vegetable oil / Dale W. Jenkins
Jenkins, Dale W. ;
s. l. : Foreign Economic Administration. Bureau of Supplios. Office of Food Programs , s. f
Clasificación: CH/634.61 / J4
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
SFA000421 (Disponible)
Disponibles para prestamo: 1

5.
Libro
Vegetation, phytogeography and paleo-ecology of the last 20,000 years of montane Central America / Gerald Alexander Islebe
Islebe, Gerald A. ;
Amsterdam : University of Amsterdam , s.f.
Clasificación: AC/581.5 / I5
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030000515 (Disponible)
Disponibles para prestamo: 1

6.
Libro
XXXV Memoria anual: ejercicio 1995/1996 / Banco Centroamericano de Integración Económica
Banco Centroamericano de Integración Económica ;
Tegucigalpa, Honduras : Banco Centroamericano de Integración Económica , s. f
Clasificación: C AC/332.150972 / B3/1995-1996
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
SFC000650 (Disponible)
Disponibles para prestamo: 1

7.
Artículo
*Solicítelo con su bibliotecario/a
Accessing cryptic diversity in Neotropical rattlesnakes (Serpentes: Viperidae: Crotalus) with the description of two new species
Carbajal Márquez, Rubén Alonso (autor) ; Cedeño-Vázquez, J.R. (autor) ; Martínez Arce, Arely (autora) ; Neri Castro, Edgar (autor) ; Machkour M'Rabet, Salima (autora) ;
Contenido en: Zootaxa Vol. 4729, no. 4 (January 2020), p. 451-481 ISSN: 1175-5334
Nota: Solicítelo con su bibliotecario/a
Resumen en español

Los miembros del complejo de especies Crotalus durissus tienen una amplia distribución desde México hasta Argentina, principalmente en zonas con bosque tropical deciduo. Aunque se reconocen actualmente cuatro especies (C. culminatus, C. durissus, C. simus y C. tzabcan), los límites entre estas no son claros. Estudios genéticos previos sugieren que C. durissus y C. simus pueden ser parafiléticos y que al menos una especie críptica puede estar presente. Analizamos una secuencia de 2596 pares de bases de ADN provenientes de tres genes mitocondriales y uno nuclear, para inferir las relaciones filogenéticas en las especies de víboras de cascabel neotropicales. Por otro lado, se examinaron especímenes de museo, silvestres y ejemplares en cautiverio para analizar caracteres morfológicos. Nuestros resultados sugieren que la taxonomía actual del grupo de especies Crotalus durissus no refleja su historia evolutiva. Los resultados obtenidos muestran un fuerte apoyo para cinco linajes independientes en Crotalus simus (sensu lato) con evidencia genética y morfológica para tres taxones previamente reconocidos y dos especies nuevas, y tres linajes en C. durissus, que representan hipótesis de especies para ser probadas con evidencia adicional. También encontramos apoyo para mantener a C. totonacus en el complejo de especies Crotalus molossus. Sugerimos cambios taxonómicos conservadores para el complejo y especies relacionadas, pero se necesita más evidencia (e.g., morfología, ecología y composición bioquímica del veneno), para aclarar las relaciones entre especies.

Resumen en inglés

Members of the Crotalus durissus species complex are widely distributed from Mexico to Argentina in areas with mainly seasonally dry tropical deciduous forest. Although four species (C. culminatus, C. durissus, C. simus and C. tzabcan) are currently recognized, species limits remain to be tested. Previous genetic studies suggest that C. durissus and C. simus may be paraphyletic and that at least one cryptic species may be present. We analyzed 2596 bp of DNA sequence data from three mitochondrial and one nuclear gene to infer phylogenetic relationships in the Neotropical rattlesnakes. We also examined museum and wild specimens as well as captive animals to analyze morphological characters. Our results suggest that current taxonomy of the Crotalus durissus species complex does not reflect evolutionary history. We found strong support for five independent lineages within Crotalus simus (sensu lato), with genetic and morphological evidence for three previously recognized taxa and two new species, as well as three major lineages within C. durissus that each represent species hypothesis to be tested with additional evidence. We also found support to retain C. totonacus in the Crotalus molossus species complex. We suggest conservative taxonomic changes to the complex and related species, but more evidence is needed (e.g., morphology, ecology and venom composition) to clarify relationships among species.


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Resumen en: Español |
Resumen en español

Here, we use 30 long-term, high-resolution palaeoecological records from Mexico, Central and South America to address two hypotheses regarding possible drivers of resilience in tropical forests as measured in terms of recovery rates from previous disturbances. First, we hypothesize that faster recovery rates are associated with regions of higher biodiversity, as suggested by the insurance hypothesis. And second, that resilience is due to intrinsic abiotic factors that are location specific, thus regions presently displaying resilience in terms of persistence to current climatic disturbances should also show higher recovery rates in the past. To test these hypotheses, we applied a threshold approach to identify past disturbances to forests within each sequence. We then compared the recovery rates to these events with pollen richness before the event. We also compared recovery rates of each site with a measure of present resilience in the region as demonstrated by measuring global vegetation persistence to climatic perturbations using satellite imagery. Preliminary results indeed show a positive relationship between pre-disturbance taxonomic richness and faster recovery rates. However, there is less evidence to support the concept that resilience is intrinsic to a region; patterns of resilience apparent in ecosystems presently are not necessarily conservative through time.


9.
Artículo
*Solicítelo con su bibliotecario/a
Precipitous decline of white-lipped peccary populations in Mesoamerica
Thornton, Daniel (autor) ; Reyna Hurtado, Rafael Ángel (autor) ; Perera Romero, Lucy (autora) ; Radachowsky, Jeremy (autor) ; Hidalgo Mihart, Mircea Gabriel (autor) ; García Anleu, Rony (autor) ; McNab, Roan (autor) ; Mcloughlin, Lee (autor) ; Foster, Rebecca (autora) ; Harmsen, Bart (autor) ; Moreira Ramírez, José Fernando (autor) ; Diaz Santos, Fabricio (autor) ; Jordan, Christopher A. (autor) ; Salom Pérez, Roberto (autor) ; Meyer, Ninon France Victoire (autor) ; Castañeda, Franklin (autor) ; Elvir Valle, Fausto Antonio (autor) ; Ponce Santizo, Gabriela (autora) ; Amit, Ronit (autora) ; Arroyo Arce, Stephanny (autora) ; Thomson, Ian (autor) ; Moreno, Ricardo (autor) ; Schank, Cody J. (autor) ; Arroyo Gerala, Paulina (autora) ; Bárcenas, Horacio V. (autor) ; Brenes Mora, Esteban (autor) ; Calderón, Ana Patricia (autora) ; Cove, Michael V. (autor) ; Gómez Hoyos, Diego (autor) ; González Maya, José F. (autor) ; Guy, Danny (autor) ; Hernández Jiménez, Gerobuam (autor) ; Hofman, Maarten (autor) ; Kays, Roland (autor) ; King, Travis (autor) ; Martinez Menjivar, Marcio Arnoldo (autor) ; Maza, Javier de la (autor) ; León Pérez, Rodrigo (autor) ; Ramos, Víctor Hugo (autor) ; Rivero Hernández, Crysia Marina (autora) ; Romo Asunción, Sergio (autor) ; Juárez López, Rugieri (autor) ; Jesús de la Cruz, Alejandro (autor) ; De la Torre, Jesús Antonio (autor) ; Towns, Valeria (autora) ; Schipper, Jan (autor) ; Portillo Reyes, Hector Orlando (autor) ; Artavia, Adolfo (autor) ; Hernández Pérez, Edwin Luis Oswaldo (autor) ; Martínez, Wilber (autor) ; Urquhart, Gerald R. (autor) ; Quigley, Howard (autor) ; Pardo, Lain E. (autor) ; Sáenz, Joel C. (autor) ; Sanchez, Khiavett (autora) ; Polisar, John (autor) ;
Contenido en: Biological Conservation Vol. 242, no. 108410 (2020), p. 1-12 ISSN: 0006-3207
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Large mammalian herbivores are experiencing population reductions and range declines. However, we lack regional knowledge of population status for many herbivores, particularly in developing countries. Addressing this knowledge gap is key to implementing tailored conservation strategies forspecies whose population declines are highly variable across their range. White-lipped peccaries (Tayassupecari) are important ecosystem engineers in Neotropical forests and are highly sensitive to human disturbance. Despite maintaining a wide distributional range, white-lipped peccaries are experiencing substantial population declines in some portions of their range.We examined the regional distribution and population status of the species in Mesoamerica. We used a combination of techniques, including expert-based mapping and assessment of population status, and data-driven distribution modelling techniques to determine the status and range limits of white-lipped peccaries. Our analysis revealed declining and highly isolated populations of peccaries across Mesoamerica, with a range reduction of 87% from historic distribution and 63% from current IUCN range estimates for the region. White-lipped peccary distribution is affected by indices of human influence and forest cover, and more restricted than other sympatric large herbivores, with their largest populations confined to transboundary reserves. To conserve white-lipped peccaries in Mesoamerica, transboundary efforts will be needed that focus on both forest conservation and hunting management, increased cross-border coordination, and reconsideration of country and regional conservation priorities. Our methodology to detail regional white-lipped peccary status could be employed on other poorly-known large mammals.


10.
Libro
Vidas fronterizas / coordinación: Ailsa Winton ; diseño: Nancy Silva García ; fotografía de portada: Fernando Limón Aguirre
Winton, Ailsa (coordinadora) ; Silva García, Nancy (diseño) ; Limón Aguirre, Fernando (fotógrafo) (1964-) ;
San Cristóbal de Las Casas, Chiapas, México : El Colegio de la Frontera Sur. Departamento de Sociedad y Cultura , 2020
Disponible en línea
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¿Vulnerables nosotros?
Naturaleza, culturas y memorias del territorio Maya-Mam
De cerca con la migración LGBTTTI