You are here
Gimnosperms / Gimnospermas
Podocarpus guatemalensis Standl.
EOL Text
This species is found in the Belizean pine forests along the Central America's northwestern Caribbean Sea coast; the ecoregion exhibits relatively well preserved fragments of vegetation as well as a considerable abundance of fauna. This ecoregion comprises a geographically small portion of the total land area of the ecoregions of Belize. There is relatively low endemism in the Belizean pine forests, and only a moderate species richness here; for example, only 447 vertebrate taxa have been recorded in the ecoregion. The ecoregion represents one of the few examples of lowland and premontane pine forests in the Neotropics, where the dominant tree species is Honduran Pine (Pinus caribaea var. hondurensis), which requires periodic low intensity burns for its regeneration. The vegetation is adapted to the xeric, acidic and nutrient-poor conditions that occur primarily in the dry season.
In the forest of the Maya Mountains, vegetation reaches higher altitudes, the topography is more rugged and crossed by various rivers, and nighttime temperatures are lower. The pine trees are larger and numerous, and the pine forest intersects other formations of interest such as rainforest, Cohune Palm (corozal), cactus associations, and others. About eleven percent of Belize is covered by natural pine vegetation. Only two percent represents totally closed forests; three percent semi-closed forests; and the remaining six percent pine savannas, that occupy coastal areas and contain isolated pine trees or stands of pine trees separated by extensive pastures. In addition to human activity, edaphic factors are a determining matter in this distribution, since the forests on the northern plain and southern coastal zone are on sandy soils or sandy-clay soils and usually have less drainage than the more fertile soils in the center of the country.
At elevations of 650 to 700 metres, the forests transition to premontane in terms of vegetation. At these higher levels, representative tree species are Egg-cone Pine (Pinus oocarpa), which crosses with Honduras Pine (P. hondurensis), where distributions overlap, although belonging to subsections of different genera; British Honduras Yellowwood (Podocarpus guatemalensis) and Quercus spp.; moreover, and in even more moist areas there is a predominance of Jelecote Pine (Pinus patula), together with the palm Euterpe precatoria var. longivaginata and the arboreal ferns Cyathea myosuroides and Hemitelia multiflora.
A number of reptilian species are found in the Belizean pine forests, including: Guatemala Neckband Snake (Scaphiodontophis annulatus); Indigo Snake (Drymarchon corais); On the coasts, interior lakes and rivers of Belize and by extension in this ecoregion there are two species of threatened crocodiles: American Crocodile (Crocodylus acutus) and Morelet's Crocodile (C. moreletii), while observation of the Central American River Turtle (Dermatemys mawii CR) is not uncommon in this ecoregion.
Also to be noted is the use of this habitat by the Mexican Black Howler (Alouatta pigra), which can be considered the most endangered howler monkey of the genus, and the Central American spider monkey (Atteles geoffroyi). Both species experienced a decline due to the epidemic yellow fever that swept the country in the 1950s. The five feline species that exist in Belize: Jaguar (Panthera onca), Puma (F. concolor), Ocelot (Leopardus pardalis), Margay (Leopardus wiedii) and Jaguarundí (Herpailurus yagouaroundi) are in appendix I of CITES, as well as the Central American tapir (Tapirus bairdii) can been seen with relative frequency. Belize has the highest density of felines in Central America. The tapir is abundant around rivers. The White-lipped Peccary (Tayassu pecari) is also present in the ecoregion.
Although most of the amphibians and reptiles are found in humid premontane and lowland forests, the only endemic frog in this ecoregion, Maya Mountains Frog (Lithobates juliani), is restricted to the Mountain Pine Ridge in the Maya Mountains. Salamanders in the ecoregion are represented by the Alta Verapaz Salamander (Bolitoglossa dofleini NT), whose males are arboreal, while females live under logs. Anuran taxa found in the ecoregion include: Rio Grande Frog (Lithobates berlandieri); Sabinal Frog (Leptodactylus melanonotus); Northern Sheep Frog (Hypopachus variolosus); Stauffer's Long-nosed Treefrog (Scinax staufferi); and Tungara Treefrog (Engystomops pustulosus).
Present in the ecoregion are a number of avian species, including the endangered Yellow-headed Amazon Parrot (Amazona oratrix EN), although this bird is adversely affected by ongoing habitat destruction. Of particular interest is the presence in this ecoregion of Central America's highest procreative colony of Jabiru (Jabiru mycteria), a large migratory bird, particularly in the Crooked Tree sanctuary, on the country's northern plains.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | C. Michael Hogan & World Wildlife Fund |
Source | http://www.eoearth.org/view/article/51cbed0e7896bb431f68f5bd/528942920cf28463bc8de5ef/?topic=51cbfc79f702fc2ba8129ee0 |
Distribucion en Costa Rica: Se conoce en la zona norte Boca Tapada de San Carlos y en Sarapiquí (faldas del cerro Tambor, cerca del río San Juan), además en la Península de Osa y Parque Nacional Rincón de la Vieja.
Distribucion General: Nativa desde Guatemala hasta Colombia.
Esta madera no se ha estudiado anatómicamente en el país, pero es muy cotizada en la zona norte de Costa Rica, pues se considera fina. Se utiliza en la fabricación de tablillas y para construcción en general.
Localidad del tipo: Guatemala: Izabal: Puerto Barios.
Depositario del tipo: HT US-1150683; IT: GH
Recolector del tipo: P.C. Standley (25090)
Podocarpus guatemalensis, the Cipresillo or Pinillo, is a species of conifer in the Podocarpaceae family.
Contents |
Distribution
Podocarpus guatemalensis is shrub and small tree found in namesake Guatemala, and also from southern Mexico through Belize, Costa Rica, El Salvador, Honduras, and Panama in Central America, to Venezuela and Colombia in northern South America. [1]
Podocarpus guatemalensis is on the IUCN Red List, as a plant species threatened by habitat loss. [1]
See also
References
- ^ a b ICUN Red List - Podocarpus guatemalensis; Conifer Specialist Group 1998; - Downloaded on 10 July 2007.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Podocarpus_guatemalensis&oldid=541648086 |
Árbol hasta 30 m de altura y 75 cm de diámetro, copa estrecha, fuste cilíndrico, sin gambas, corteza externa pardo-rojiza, escamosa, ramas delgadas. Hojas simples, alternas, lanceoladas, 7-10 cm de largo y 1-1.2 cm de ancho, con la nervadura central depresa hacia la parte cuneada de su base y angosta en el ápice, las hojas de las ramas viejas por lo general son hasta 1-2 cm más pequeñas de largo y ancho. Flores dioicas y a veces monoicas, las flores masculinas solitarias o agrupadas en las axilas de las hojas, cortamente pedunculadas; flores femeninas solitarias, axilares, pedunculadas. Conos masculinos no han sido observados, conos femeninos, cilíndricos, axilares, pedúnculo más o menos 3 mm de longitud. Semillas elipsoides, 6-9 mm de longitud, 4.5 mm de diámetro, con diminuta cresta cónica.
Holotype for Podocarpus guatemalensis Standl.
Catalog Number: US 1150683
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): P. C. Standley
Year Collected: 1922
Locality: Puerto Barrios; alt. sea level, Izabal, Guatemala, Central America
- Holotype: Standley, P. C. 1924. Proc. Biol. Soc. Wash. 37: 49.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2095748 |
Habitat and Ecology
Systems
- Terrestrial
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/34084 |
Es la única gimnosperma arbórea nativa que crece en tierras bajas con climas húmedos y muy húmedos, con altitudes entre los 50-1500 m de elevación, con una precipitación superior a los 2500 mm anuales.