scholarly journals Mammals in tropical dry forest on the central coast of Oaxaca, Mexico

Check List ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1862 ◽  
Author(s):  
Miguel Briones-Salas ◽  
Natalia Martín-Regalado ◽  
Mario C. Lavariega
Keyword(s):  
Deciduous Forest ◽  
Species Turnover ◽  
Tropical Dry Forest ◽  
Similarity Index ◽  
Dry Forest ◽  
Central Coast ◽  
Semideciduous Forest ◽  
Southern Mexico ◽  
Additional Information ◽  
Mammal Diversity

The tropical dry forests of Mexico are one of the world’s biodiversity hotspots. To contribute to the knowledge of mammal diversity and conservation of the central coast of Oaxaca State, southern Mexico, we conducted field surveys in the area. Additional information was obtained from literature and museum databases. In order to compare the taxonomic similitude between areas along the Planicie Costera del Pacífico province we performed a taxonomic similarity analysis using data from the literature and the present study. A total of 49 species of mammals belonging to 19 families and eight orders were recorded. The maximum number of species was recorded in deciduous forest (n = 46), followed by semideciduous forest (n = 11). The similarity index was low (<50%) between areas along the Planicie costera del Pacífico, indicating higher species turnover. The high mammal diversity, the presence of endemic (8%), threatened species (16%), and voluntary conservation areas highlight the importance of this region.

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.

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 Aspects of the population biology of the gregarious tree Cordia elaeagnoides in Mexican tropical deciduous forest

1996 ◽  
Vol 12 (1) ◽  
pp. 11-24 ◽  
Author(s):  
Jan M. Van Groenendael ◽  
Stephen H. Bullock ◽  
L. Alfredo Pérez-Jiménez
Keyword(s):  
Population Biology ◽  
Deciduous Forest ◽  
Size Structure ◽  
Dry Forest ◽  
Tropical Deciduous Forest ◽  
Timber Species ◽  
Large Area ◽  
Embryo Abortion ◽  
Southern Mexico ◽  
Canopy Tree

ABSTRACTCordia elaeagnoides is locally important within a large area of southern México as a highly gregarious canopy tree of dry forest and as a timber species. Its recruitment is problematic so studies of its reproduction and population dynamics were undertaken. The distylous flowers are apparently self-compatible, and pollination and seed dispersal are by wind. Pre-dispersal mortality is largely from embryo abortion, and post-dispersal predation is mostly by generalist rodents. Some seeds may survive in enforced dormancy for two or more years. Recruitment was apparently absent for more than a decade, but had previously occurred within established stands, where size classes were interspersed at random. Population size structure suggests that recruitment over the last century occurred in several pulses. Growth rates determined from ring counts and remeasurement of marked trees support a size-age relationship. The youngest reproductive trees are estimated to be about 18 years old, and about 5% of the present population is over 95 years old.

scholarly journals La flora arbórea de Michoacán, México

2017 ◽  
pp. 47 ◽  
Author(s):  
Eva M. Cué-Bär ◽  
José Luis Villaseñor ◽  
Libertad Arredondo-Amezcua ◽  
Guadalupe Cornejo-Tenorio ◽  
Guillermo Ibarra-Manríquez
Keyword(s):  
Tree Species ◽  
Deciduous Forest ◽  
Coniferous Forest ◽  
Tropical Dry Forest ◽  
The State ◽  
Dry Forest ◽  
Tropical Deciduous Forest ◽  
Oak Forest ◽  
Vegetation Types ◽  
Geologic History

Based on the review of floristic and taxonomic literature, as well as on the examination of specimens housed at the herbaria of the Centro Regional del Bajío (IEB) and the Instituto de Biología (MEXU), we recorded 845 species, 352 genera and 100 families of trees for the state of Michoacán, Mexico. The largest numbers of species per family were recorded for Asteraceae (82), Fabaceae (74), Mimosaceae (67), Caesalpiniaceae (39) and Burseraceae (38), while at the genus level Bursera (37), Quercus (35), Lonchocarpus (19), Senna (18), and Acacia (16) are the most speciose. The genus Beiselia (Burseraceae) and 14 species (1.8 %) are strict endemics to the state. A total of 28 families (28%) and 210 genera (60%) are represented in the state only by one tree species each. The most important vegetation types according to their species richness are tropical deciduous forest (593, 70.2%), coniferous forest (336, 39.8%) and oak forest (332, 39.3%). A high proportion (69.9%) of Michoacán’s tree species is located in 2-4 vegetation types; 173 species (21.5%) have been found just in one type, mainly in the tropical dry forest (87 species, 10.3%). The floristic richness of Michoacán is largely explained by its complex geologic history, its rugged physiography, its diverse climate, and its multiple vegetation types, as well as by its location at the confluence of the Holartic and Neotropical floristic kingdoms. Counties and species on which to focus conservation efforts for trees in the state are pinponted.

scholarly journals Edaphic and Seasonal Heterogeneity of Seed Banks in Agricultural Fields of a Tropical Dry Forest Region in Southern Mexico

2012 ◽  
Vol 90 (3) ◽  
pp. 287 ◽  
Author(s):  
Jorge A. Meave ◽  
Claudia Flores-Rodríguez ◽  
Eduardo A. Pérez-García ◽  
Marco Antonio Romero-Romero
Keyword(s):  
Seed Bank ◽  
Tropical Dry Forest ◽  
Abundant Species ◽  
Black Soil ◽  
Seed Banks ◽  
Dry Forest ◽  
Agricultural Fields ◽  
Tropical Region ◽  
Soil Cores ◽  
Southern Mexico

<p class="p1"><span class="s1">The slash-and-burn agriculture practiced across tropical dry regions results in the elimination of native vegetation. Upon field abandonment, the seed bank becomes a potentially important mechanism of natural regeneration at early successional stages. Soil properties and climate seasonality may affect seed bank characteristics, thus we analyzed the effects of these two factors on seed bank density and composition in agricultural fields of a seasonally dry tropical region of southern Mexico. Soil cores were collected for the rainy and the dry seasons in order to assess changes occurring in the seed bank from the time of harvest to the moment when succession could potentially start (the next rainy season). The 12 studied fields comprised three different soil types recognized by local inhabitants: sandy and stony, silty, and clayey soils, locally known as cascajo, black soil, and red soil, respectively. At each fi eld 20 soil cores (8 cm diameter, 4.5 cm depth) were collected and mixed to form four pooled samples, which were placed in a greenhouse to induce germination. A total of 4,422 seedlings (2,291 seeds m<sup>-2</sup>) representing 40 species were recorded. The most abundant species were, in decreasing order, <em>Melanthera nivea</em>, <em>Rhynchelytrum repens</em>, <em>Waltheria indica</em>, <em>Amaranthus scariosus</em>, <em>Digitaria bicornis</em>, and <em>Cenchrus pilosus</em>. Herbs were the prevailing growth form (&gt; 80% of total richness). No clear pattern was observed in the seed bank related to soil type; however, seed bank characteristics tended to be associated with the time of use of the agricultural fields, a variable that was not controlled in the study. Seed bank species richness was significantly larger in the dry season, and although seed density showed a similar trend, it was not significant. The studied seed banks contain no elements of the regional primary tropical dry forest, which suggests that seed banks in deforested areas cannot guarantee their maintenance beyond forested areas.</span></p>

scholarly journals Land-Use Change in a Mexican Dry Forest Promotes Species Turnover and Increases Nestedness in Plant-Hummingbird Networks: Are Exotic Plants Taking Over?

2020 ◽  
Vol 13 ◽  
pp. 194008292097895
Author(s):  
Sergio Díaz Infante ◽  
Carlos Lara ◽  
María del Coro Arizmendi
Keyword(s):  
Land Use ◽  
Plant Species ◽  
Species Turnover ◽  
Land Use Changes ◽  
Tropical Dry Forest ◽  
Exotic Plants ◽  
Dry Forest ◽  
Interaction Networks ◽  
Native Plant ◽  
Plant Interactions

Background Despite the increasing knowledge of plant-pollinator interaction networks, the effects of human-induced disturbances on them have barely been studied. We analyzed whether land-use changes modified the structure and topology of plant-hummingbird interaction networks or promoted the integration of exotic plant species. Methods Fieldwork was carried out in two vegetation areas in Mexico: a protected tropical dry forest and nearby disturbed sites. For two years we registered hummingbird-plant interactions monthly in each area. Then, we constructed interaction matrices from these data and compared their assemblage structure. Results The conversion of original dry forest to disturbed habitats impacted some assemblage attributes of the plant-hummingbird network. In the disturbed sites, there were more plant species, mainly exotics, and one additional hummingbird species. Most network attributes remained the same except niche width and nestedness (pattern of interactions where generalists and specialists tend to interact with generalists whereas specialist-to-specialist interactions are infrequent), which were higher in the disturbed network. The generalist core in the disturbed network contained half of the core species in the conserved network. Implications for conservation Exotic plants that strongly integrated into the disturbed network may exert a large influence on network dynamics in these areas. Identifying the interacting species and their role provides valuable insights for their conservation and protection. Hummingbirds attracting native plant species have a potential for practical or ornamental use, and hummingbirds presence in human-modified landscapes not only provides positive aesthetic value to people but can additionally contribute to conserving native plants and the biodiversity associated with them.

scholarly journals Effects of Land-Use Modifications in the Potential Distribution of Endemic Bird Species Associated With Tropical Dry Forest in Guerrero, Southern Mexico

2018 ◽  
Vol 11 ◽  
pp. 194008291879440
Author(s):  
R. Carlos Almazán-Núñez ◽  
Pablo Sierra-Morales ◽  
Octavio R. Rojas-Soto ◽  
Javier Jiménez-Hernández ◽  
Alfredo Méndez-Bahena
Keyword(s):  
Land Use ◽  
Potential Distribution ◽  
Tropical Dry Forest ◽  
Bird Species ◽  
Dry Forest ◽  
Southern Mexico ◽  
Effects Of Land Use

scholarly journals REGENERATION THROUGH RESPROUTING AFTER CLEAR-CUTTING AND TOPSOIL STRIPPING IN A TROPICAL DRY FOREST IN CENTRAL BRAZIL1

2017 ◽  
Vol 41 (2) ◽  
Author(s):  
Maxmiller Cardoso Ferreira ◽  
Silvia Barbosa Rodrigues ◽  
Daniel Luis Mascia Vieira
Keyword(s):  
Natural Regeneration ◽  
Deciduous Forest ◽  
Tropical Dry Forest ◽  
Species Level ◽  
Dry Forest ◽  
Forest Trees ◽  
Central Brazil ◽  
Clear Cutting ◽  
Plant Organ ◽  
Resprouting Ability

ABSTRACT Tropical dry forest trees have high resprouting ability, which may be useful for ecological restoration purposes. However, resprouting ability is affected by the type and severity of the disturbance. This study described the regeneration of trees through resprouting in a seasonally deciduous forest in Central Brazil, six months after being subjected to a gradient of disturbance. In order to expand a limestone quarry, 10 ha of deciduous forest were deforested in May 2013, creating areas with three increasing levels of disturbance: Clear-Cutting, Stump Removal and 5-20 cm of Topsoil Stripping. Twenty 3.14 m² circular plots were randomly selected in each type of disturbance. All resprouts were counted and identified to species level. The plant organ where each resprout grew from and the distance of the resprout insertion to the soil were recorded. There were 27 species in the Clear-Cutting and Stump Removal areas, and 24 in the Topsoil Stripping site. Resprout density was 3.0 ± 0.3a/m² in the Clear-Cutting, 1.7 ± 0.4b in the Stump Removal and 1.4 ± 0.4b in the Topsoil Stripping area (mean ± SD; Tukey HSD). Stems contributed to 61% of the resprouts in the Clear-Cutting area, while 60% of the resprouts in Stump Removal grew from root collars and 70% of the resprouts in Topsoil Stripping grew from roots. Underground resprouts emerged from a depth of up to 24 cm. An increase in disturbance severity negatively affected resprouting ability, but natural regeneration was high regardless of disturbance severity. The high resprouting ability of the deciduous forest trees provides resilience even after topsoil stripping.

scholarly journals Uso de hábitat de los roedores arborícolas en Chamela, Jalisco.

2007 ◽  
Vol 11 (1) ◽  
pp. 21 ◽  
Author(s):  
Yolanda Domínguez Castellanos ◽  
Felipe Pimentel López ◽  
Gerardo Ceballos González
Keyword(s):  
Habitat Use ◽  
Tropical Dry Forest ◽  
Dry Season ◽  
Dry Forest ◽  
Tropical Dry Forests ◽  
Semideciduous Forest ◽  
Palabras Clave ◽  
Distribution Of Resources ◽  
Selection Of

Resumen: Los bosques tropicales son sitios estructuralmente complejos, con una alta diversidad de especies de roedores, que incluyen especies terrestres y arborícolas. En las selvas secas de México, que mantienen una alta concentración de especies endémicas, se desconoce como usan diferentes tipos de hábitat en diferentes épocas del año. En este estudio evaluamos el uso de hábitat de los roedores arborícolas de la selva seca y selva mediana de la reserva de  la biosfera Chamela  Cuixmala en la costa central de Jalisco. El muestreo se realizó en dos temporadas y en los dos tipos de hábitat. Se utilizó la técnica de polvos fluorescentes para evaluar el uso de hábitat., que consiste en marcarlos con los polvos fluorescentes. Una vez capturados y marcados se realizó un seguimiento del rastro y se hizo un mapa del área recorrida. Se capturaron 149 individuos de cuatro especies de roedores y un marsupial obteniendo 136 rastros. Osgoodomys banderanus y Peromyscus perfulvus fueron las especies más abundantes.  En recorridos, las especies se desplazaron más veces en el suelo durante secas y en árboles tanto en secas como en lluvias. Se empleó una clasificación de los cuatro tipos de uso de hábitat, en secas, los roedores utilizaron el hábitat para buscar recursos, mientras que en lluvias, los roedores sólo buscaron refugio y escaparon de los depredadores. Las especies arborícolas presentaron uso diferencial del hábitat tanto por selvas como por temporadas y aprovecharon los recursos disponibles para poder sobrevivir dando una repartición de recursos y una selección espacial del hábitat para la coexistencia de las especies. Palabras clave: Uso de hábitat, polvos fluorescentes, roedores, Chamela, Jalisco. Abstract: The tropical dry forests are structurally complex sites that allow the establishment of a high diversity of species. We evaluated the habitat use of arboreal rodents in Chamela, Jalisco. The sampling was realized in two seasons and in both forests (the tropical semideciduous forest and the tropical dry forest). There was in use the fluorescent powders for the use of habitat, likewise there was realized a follow-up of the track and a map of the crossed area. I captured 149 individuals of Osgoodomys banderanus, Nyctomys sumichrasti, Peromyscus perfulvus and Xenomys nelsoni, obtaining 136 trails.  During dry season in tropical dry forest, there were more trails in the ground than in the trees and during the rainfall there were more trails in the trees than in the ground. In the tropical semideciduous forest the trails were the same, during two seasons in ground and trees. In dry season, the habitat use was the same and the rainfall season they searched refuges and escaped. In Chamela by its characteristic allowed that arboreal species presented differential use of the habitat both for forests and for seasons and took advantage of the available resources to be able to survive giving a distribution of resources and a spatial selection of the habitat for the coexistence of the species. Key words: Habitat use, fluorescent powders, rodents, Chamela, Jalisco.

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