scholarly journals MAMIFEROS EN DOS LOCALIDADES DE SELVA SECA EN EL ESTADO DE GUERRERO

2016 ◽  
Vol 6 (2) ◽  
pp. 50
Author(s):  
Alejandro Marín ◽  
Gerardo Ceballos ◽  
Jesús Pacheco
Keyword(s):  
Latin America ◽  
Endangered Species ◽  
Conservation Status ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Pacific Region ◽  
Forest Patches ◽  
Mexican Pacific ◽  
Global Context ◽  
Terrestrial Mammals

RESUMENLas selvas secas son uno de los ecosistemas más diversos y amenazados en Latinoamérica. Se realizó un muestreo de la mastofauna terrestre en dos localidades de las selvas secas del estado de Guerrero en el Pacífico mexicano. En total se registraron 44 especies de mamíferos terrestres que pertenecen a 20 familias y 8 órdenes, lo que representa el 9% de la mastofauna terrestre del país y el 29% para el estado de Guerrero. De las especies encontradas, 9 son endémicas a México. Sobre el estado de conservación, 3 de ellas se encuentran amenazadas y 3 en peligro de extinción de acuerdo a la lista mexicana de especies en riesgo. A nivel mundial, 2 especies son consideradas vulnerables. Destacan los registros del zorrillo pigmeo (Spilogale pygmaea), la rata leñera (Hodomys alleni) y el jaguarundi (Herpailurus yagouaroundi). Para los murciélagos Musonycteris harrisoni y Myotis carteri se amplía su rango de distribución con los registros aquí presentados. La diversidad de mamíferos registrada enfatiza la importancia de conservar parches de selva en ambientes altamente urbanizados, así como la necesidad de estrategias que incrementen la conectividad entre los diferentes parches y que consideren las amenazas urbanas a la fauna en estos sitios.Palabras clave: Acapulco de Juárez, Guerrero, mamíferos, Omitlán, selva seca.ABSTRACTThe tropical dry forest represents one of the most diverse and threatened ecosystems in Latin America. We carried out a survey of the terrestrial mammals’ community in two locations at the Mexican Pacific region of dry forest in Guerrero state. We registered 44 species of mammals belonging to 20 families and 8 orders, representing 9 % of Mexico’s terrestrial mammals and 29 % of Guerrero’s. About 9 species of the mammals reported in this study are endemic to Mexico. About the conservation status, 3 species are classified as “threatened” and 3 as “endangered” in the Mexican list of endangered species. In the global context, 2 species are listed as vulnerable. Also, the presence of the pygmy skunk (Spilogale pygmaea), the allen’s woodrat (Hodomys alleni) and the presence of the jaguaroundi (Herpailurus yagouaroundi), is noteworthy. With the records in this study, we extend the known distribution of the bats Musonycteris harrisoni and Myotis carteri. The great diversity and peculiarity of the found mammals emphasize the importance of conserve forest patches in highly urbanized, also the need of strategies that increment the connectivity between the patches and consider the urban threats, as roadkill’s, in these sites.Key words: Acapulco de Juárez, dry forest, Guerrero, mammals, Omitlan.

scholarly journals Trees and shrubs of the tropical dry forest of the Magdalena river upper watershed (Colombia)

2019 ◽  
Vol 7 ◽  
Author(s):  
Luz Romero-Duque ◽  
Jesion Rosero-Toro ◽  
Mateo Fernández-Lucero ◽  
Andrea Simbaqueba-Gutierrez ◽  
Caterinne Pérez
Keyword(s):  
Forest Conservation ◽  
Conservation Status ◽  
Tropical Dry Forest ◽  
Abundant Species ◽  
Dry Forest ◽  
Forest Patches ◽  
Conservation Area ◽  
Magdalena River ◽  
North And South ◽  
Trees And Shrubs

We describe the database of trees and shrubs of tropical dry forest patches of the Magdalena upper river basin in Colombia, preserved in the Herbarium of Universidad de Ciencias Aplicadas y Ambientales. The dataset includes 211 taxa, from which 156 were identified to species. We reported 48 families and 137 genera. The most species rich and abundant families were Fabaceae and Rubiaceae and the most abundant species was Talisia stricta (Sapindaceae). We found differences in diversity between north and south zones of the study area. The Magdalena river upper watershed region is an important tropical dry forest conservation area. Twenty nine species and 4 genera recorded in this study have not been reported in previous reviews of the region. Additionally, Oxandra espintana is reported in literature as critically endangered and Aspidosperma polyneuron is reported as endangered, but there are no studies about their conservation status in the region. Our results suggest the strong need to develop additional inventories of plants that contribute to the knowledge of the plant diversity of this ecosystem in the region and studies of their conservation status.

scholarly journals Madrigueras de Liomys pictus en dos selvas tropicales del Pacífico mexicano.

2009 ◽  
Vol 13 (1) ◽  
pp. 63 ◽  
Author(s):  
Yolanda Domínguez-Castellanos ◽  
Beatriz Hernandez Meza ◽  
Angeles Mendoza D. ◽  
Gerardo Ceballos González
Keyword(s):  
Seed Production ◽  
Tropical Forests ◽  
Plant Species ◽  
Deciduous Forest ◽  
Vegetation Type ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Mexican Pacific ◽  
La Selva

Resumen: Se determinó la estructura y el contenido de las madrigueras de Liomys pictus por tipo de vegetación y temporada del año, en dos selvas tropicales del Pacífico Mexicano. Se encontraron 24 madrigueras: en la selva baja la mayoría son complejas, mientras que  en la selva mediana son lineales, por consiguiente y de acuerdo a la clasificación de las madrigueras, en selva baja se presentaron madrigueras múltiples y en selva mediana madrigueras simples. De acuerdo al contenido, las de selva baja tienen en promedio una mayor cantidad de materiales en comparación a las de selva mediana. Se catalogaron un total de 248 especies de plantas de estas 50 se comparten en ambos sitios, del total de las especies se llegaron a identificar sólo 77. Las familias más representativas fueron Leguminoseae, Euphorbiaceae y Convolvulaceae. La estructura de las madrigueras no esta determinada por la temporalidad, sin embargo el contenido esta determinado con la cantidad de material almacenado aunque la producción de semillas esta definido por el patrón de fructificación que esta dado a lo largo del año.Palabras clave: Madrigueras, estructura, contenido, Liomys pictus, Jalisco, México.Abstract: We determined the structure and contents of burrows of Liomys pictus by vegetation type and season in two tropical forests of the Mexican Pacific. 24 burrows were found in the tropical dry forest and most complex, in the semi deciduous forest is linear, and therefore according to the classification of the burrows in the tropical dry forest are more numerous and simple in the semi deciduous forest. According to the content, of the tropical dry forest have on average a greater amount of material compared to the semi deciduous forest. Were categorized a total of 248 plant species of these 50 sites are shared in both the total number of species is to determine 77. The most representative families were Leguminoseae, Euphorbiaceae and Convulvolaceae. The structure of the burrows is not affected by the timing, but the content is determined with the amount of stored material but seed production is defined by the pattern of fruit that is given throughout the year.Key words: Burrows, structure, food hoarding, Liomys pictus, Jalisco, Mexico.

scholarly journals Terrestrial mammal diversity in forests close to pineapple crops, Cutris San Carlos, Costa Rica.

2015 ◽  
Vol 7 (1) ◽  
pp. 59-65
Author(s):  
Jonathan Navarro P ◽  
Alexander Gómez L
Keyword(s):  
Conservation Status ◽  
Forest Fragments ◽  
Negative Effects ◽  
Forest Patches ◽  
Wild Mammals ◽  
Predator Prey ◽  
Terrestrial Mammal ◽  
Terrestrial Mammals ◽  
San Carlos ◽  
Mammal Diversity

Pineapple crops reduce the size of forest fragments and generate pressure on biodiversity in the remnants. To determine potential negative effects of forest fragmentation we assessed diversity and composition of terrestrial mammals in forest patches on three farms under pineapple crops. We placedSherman and Tomahawk traps, footprints traps near water bodies, and made daily tracks to obtain traces and direct observation of mammals. We identified seven species of wild mammals, mostly omnivorous and under a least concern conservation status. The effect of cover type generated by the pineapple crops is consistent with mammal composition. Pineapple crops could enhance the most common wildlife problems, such as predator-prey relationships. Therefore, pineapple plantations, by causing fragmentation and lack of connectivity among forest patches, threaten extinction of mammals in some of their original range.

scholarly journals Herpetofaunal diversity in a tropical dry forest on the Central Coast of Oaxaca, Mexico

2019 ◽  
Vol 29 ◽  
pp. 1-11
Author(s):  
Jesús García Grajales ◽  
Yolanda López-López ◽  
Alejandra Buenrostro Silva
Keyword(s):  
Conservation Status ◽  
Tropical Dry Forest ◽  
Similarity Index ◽  
Dry Forest ◽  
Central Coast ◽  
Amphibian Species ◽  
Baseline Information ◽  
Threatened Habitats ◽  
High Diversity ◽  
Pueblo Viejo

The dry forest is an ecosystem with a relatively high diversity of species. It is also one of the most threatened habitats. This research was carried out between January and November 2010 aiming to describe species richness, composition, and conservation status of the herpetofauna in the Yerbasanta micro-basin in the Central Coast of Oaxaca. Standard visual encounter surveys were used to observe herpetofaunal community in four locations of the micro-basin. Five amphibian species and 37 reptiles species were found. The Shannon-Wienner index showed that Pueblo Viejo had the highest value of diversity, followed by Unión, and the remainder localities had lower values. The similarity index was moderate between locations. Among the registered species, 12 can be classified under some conservation status. These results also suggest that this region can maintain a significant number of herpetofauna species. Additionally, this research represents baseline information that contributes to other studies.

Land use/cover, landforms and fragmentation patterns in a tropical dry forest in the southern Pacific region of Mexico

2008 ◽  
Vol 29 (2) ◽  
pp. 137-154 ◽  
Author(s):  
Leopoldo Galicia ◽  
Alba Esmeralda Zarco-Arista ◽  
Karla Ivette Mendoza-Robles ◽  
José Luis Palacio-Prieto ◽  
Arturo García-Romero
Keyword(s):  
Land Use ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Pacific Region ◽  
Fragmentation Patterns

scholarly journals Effect of fragmentation on the Costa Rican dry forest avifauna

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2422 ◽  
Author(s):  
Gilbert Barrantes ◽  
Diego Ocampo ◽  
José D. Ramírez-Fernández ◽  
Eric J. Fuchs
Keyword(s):  
Tropical Dry Forest ◽  
Bird Community ◽  
Dry Season ◽  
Costa Rican ◽  
Dry Forest ◽  
Forest Fragment ◽  
Avian Community ◽  
Forest Patches ◽  
Species Occupancy ◽  
Avian Assemblages

Deforestation and changes in land use have reduced the tropical dry forest to isolated forest patches in northwestern Costa Rica. We examined the effect of patch area and length of the dry season on nestedness of the entire avian community, forest fragment assemblages, and species occupancy across fragments for the entire native avifauna, and for a subset of forest dependent species. Species richness was independent of both fragment area and distance between fragments. Similarity in bird community composition between patches was related to habitat structure; fragments with similar forest structure have more similar avian assemblages. Size of forest patches influenced nestedness of the bird community and species occupancy, but not nestedness of assemblages across patches in northwestern Costa Rican avifauna. Forest dependent species (species that require large tracts of mature forest) and assemblages of these species were nested within patches ordered by a gradient of seasonality, and only occupancy of species was nested by area of patches. Thus, forest patches with a shorter dry season include more forest dependent species.

scholarly journals A camera trap assessment of terrestrial mammals in Machalilla National Park, western Ecuador

Check List ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1868 ◽  
Author(s):  
Laura Cervera ◽  
Diego J. Lizcano ◽  
Violeta Parés-Jiménez ◽  
Sueanny Espinoza ◽  
Diana Poaquiza ◽  
...  
Keyword(s):  
Wildlife Management ◽  
National Park ◽  
Conservation Status ◽  
Keystone Species ◽  
Camera Trap ◽  
Dry Forest ◽  
Large Mammals ◽  
Panthera Onca ◽  
Terrestrial Mammals ◽  
The Past

Understanding the abundance, geographicdistribution, and conservation status of terrestrial mam­mals is vital to promote effective wildlife management in protected areas. Located in the Tumbes-Chocó-Magdalena hotspot of western Ecuador, Machalilla National Park contains high levels of biodiversity and endemism but suffers from habitat loss and degradation. This study provides an updated inventory of medium-sized to large mammals in the park and assesses changes in species richness over the past 20 years. Surveying 70% of Machalilla’s 562-km2 terrestrial area with 60 camera trap points, we detected 18 species of mammals belonging to 13 families. Richness of terrestrial species has declined in recent decades, due to the disappearance of keystone species like Jaguar (Panthera onca), White-lipped Peccary (Tayassu pecari), and possibly the Sechuran Fox (Lycalopex sechurae). We recommend specific man­agement improvements to ensure conservation of the unique ecosystems and biodiversity of Machalilla, the only national park in Ecuador containing dry forest.

Conservation status of tropical dry forest remnants in Nicaragua: Do ecological indicators and social perception tally?

2009 ◽  
Vol 19 (3) ◽  
pp. 813-827 ◽  
Author(s):  
David Tarrasón ◽  
Josué T. Urrutia ◽  
Federica Ravera ◽  
Ertilia Herrera ◽  
Pilar Andrés ◽  
...  
Keyword(s):  
Social Perception ◽  
Conservation Status ◽  
Tropical Dry Forest ◽  
Ecological Indicators ◽  
Dry Forest ◽  
Forest Remnants

scholarly journals Estructura, composición y diversidad de la selva baja caducifolia del Cerro Verde, Nizanda (Oaxaca), México

2017 ◽  
pp. 19 ◽  
Author(s):  
José A. Gallardo-Cruz ◽  
Jorge A. Meave ◽  
Eduardo A. Pérez-García
Keyword(s):  
Species Richness ◽  
Forest Cover ◽  
Conservation Status ◽  
Tropical Dry Forest ◽  
Basal Area ◽  
Floristic Composition ◽  
Dry Forest ◽  
Tropical Region ◽  
Mean Values ◽  
Seasonally Dry

In this study we describe the structure, floristic composition, and diversity of the tropical dry forest established on the Cerro Verde (Verde Hill), located at Nizanda (Isthmus of Tehuantepec, Oaxaca, Mexico). We censused woody plants with DBH Ɛ 1 cm (upper stratum) present in 30 100-m2 plots, and in five 4-m2 subplots within each of them, those plants with height > 30 cm but < 1 cm DBH (lower stratum). A total of 194 species belonging to 52 families were recorded. Species richness was identical in both strata (145 species), each contributing exclusively with ca. 25% of total recorded richness. Leguminosae was the most speciose family (27), followed by Asteraceae (20) and Euphorbiaceae (18). The most frequent species were Bursera simaruba + B. aff. cinerea (not distinguished in the field), Euphorbia schlechtendalii, Pilosocereus collinsii and Capparis verrucosa. Average richness by plot was 30 species. Mean values of indices based on species richness and abundances (Berger-Parker = 0.20;  Simpson = 0.09; Fisher’s[= 9.47; Shannon = 2.78; eveness = 0.82) indicated a high diversity and consequently a low dominance in this forest. Extrapolated values showed a total (upper + lower strata) density of 23,950 ind. ha-1 (830 ind. ha-1 with DBH Ɛ 10 cm), a forest cover of 446.7%, and a basal area of 53 m2 ha-1. Mean height of those individuals accounting for 10% of the highest trees by plot was 9.1 m. Tropical dry forest structure at Cerro Verde is comparable to other Mexican communities within the seasonally dry tropical region and indicates a good conservation status. This feature, together with its particular floristic composition, makes of this area a high priority site which requires inclusion in a formal conservation scheme.

scholarly journals Flora de la costa de Oaxaca, México: Lista florística de la región de Zimatán

2017 ◽  
pp. 21 ◽  
Author(s):  
Silvia H. Salas-Morales ◽  
Alfredo Saynes-Vásquez ◽  
Leo Schibli
Keyword(s):  
Pacific Coast ◽  
Vascular Plant ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Biological Information ◽  
Floristic Diversity ◽  
Vegetation Types ◽  
Mexican Pacific ◽  
Elevational Range ◽  
Floristic Data

The Zimatan region of Oaxaca is characterized by the occurrence of several vegetation types and a large floristic diversity, primarily due to the large elevational range that it encompasses (from sea level to 2,580 m). In 1991 this region was proposed as a high-priority area for conservation in Oaxaca State, largely due to its extensive, well-preserved tracts of tropical dry forest. Nonetheless, little biological information is available for this area. In 1997 we initiated a series of studies aimed at supporting the conservation of the Zimatan region. Here we present floristic data based on 8,063 original botanical collections. The list includes 1,384 vascular plant species, distributed among 668 genera and 144 families. These collections make of the Zimatan region one of the most comprehensively collected areas and most diverse on the Mexican Pacific coast, along with the Chamela Biological Station in Jalisco State.

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