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Topic: Veracruz dry forests


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In the News (Thu 24 Dec 09)

  
  Tropical and subtropical dry broadleaf forests - Wikipedia, the free encyclopedia
Dry forests tend to exist north and south of the equatorial rainforest belt, south of the subtropical deserts, generally in two bands, one between 10° and 20°N latitude and the other between 10° and 20°S latitude.
Dry forests of Madagascar and New Caledonia are also highly distinctive (pronounced endemism and a large number of relictual taxa) for a wide range of taxa and at higher taxonomic levels.
Dry forests are highly sensitive to excessive burning and deforestation; overgrazing and exotic species can also quickly alter natural communities; restoration is possible but challenging, particularly if degradation has been intense and persistent.
en.wikipedia.org /wiki/Tropical_and_subtropical_dry_broadleaf_forests   (730 words)

  
 World Biomes   (Site not responding. Last check: 2007-10-12)
Rain forest of the western edge of India and Sri Lanka is isolated from the remainder by dry forest.
Dry forests vary from largely extirpated to still extensive, depending on the geographic region, but in some regions they are more endangered than rain forests.
Climates range from very wet to very dry depending on the wind regime and the presence of mountains, although the humidity is usually relatively high because of the proximity of the ocean even on islands that are dry because of their low rainfall.
www.ups.edu /biology/museum/worldbiomes.html   (11949 words)

  
 Terrestrial Ecoregions -- Veracruz dry forests (NT0233)   (Site not responding. Last check: 2007-10-12)
These dry forests create an ecological island in the middle of a sea of tropical moist forests.
The northernmost dry forests of the Gulf of Mexico, this ecoregion appears to be an island surrounded by a sea of tropical forests.
Veracruz is known for its extensive cattle industry and forests were cleared long ago for pasture.
www.nationalgeographic.com /wildworld/profiles/terrestrial/nt/nt0233.html   (388 words)

  
 Neotropic   (Site not responding. Last check: 2007-10-12)
Guayanan highlands forests (Brazil, Colombia, Guyana, Suriname, Venezuela)
Trinidad and Tobago moist forests (Trinidad and Tobago)
Windward Islands moist forests (Dominica, Grenada, Martinique, Saint Lucia, Saint Vincent and the Grenadines)
www.encyclopedia-1.com /n/ne/neotropic.html   (726 words)

  
 The Orchid Lady's Orchid Encyclopedia - P-Q   (Site not responding. Last check: 2007-10-12)
tall or short, large or small, terrestrial or epiphytic, erect or pendent, creeping or clumped, thick or thin, course or delicate, tropical or temperate, dry or wet.
There are about twenty small epiphytic distributed in the forested mountain areas of central and southern Brazil.
There are about twenty small monopodial epiphytic species distributed in rain forests from northeast India to southeast Asia with most species found in Borneo.
www.orchidlady.com /encyclopedia/p.html   (3322 words)

  
 iqexpand.com   (Site not responding. Last check: 2007-10-12)
Tropical and subtropical dry broadleaf forests is a biome located at tropical and subtropical latitudes.
Dry forests are highly sensitive to excessive burning and deforestation; overgrazing and exotic species can also quickly alter natural communities; restoration is possible but challenging, particulary if degradation has been intense and persistent.
Tropical and Subtropical Dry Broadleaf Forests andgt; Hawaii tropical dry forests (OC0202) Mamani forest, western slope of Mauna Kea, Hawaii, USA Photograph by David Olson Oceania--Hawaiian Islands Tropical and...
tropical_and_subtropical_dry_broadleaf_forests.iqexpand.com   (997 words)

  
 Terrestrial Ecoregions -- Veracruz dry forests (NT0233)
The dry forests of Veracruz constitute an ecological island in the middle of tropical forests.
The climate is tropical dry due to the orographic influence of the Chiconquiaco Sierra Mountains.
The dry forests of Veracruz constitute an ecological island in the middle of a sea of tropical forests.
www.worldwildlife.org /wildworld/profiles/terrestrial/nt/nt0233_full.html   (1008 words)

  
 MSN Encarta - Mexico
The south—characterized by dense forests, a tropical climate, a largely indigenous population, and a rural-based economy—is much less developed than the rest of the country.
The northern region is generally dry, and agriculture is possible only with the help of irrigation.
The northwestern peninsula is dry and brushy and supports some agriculture; further south rainfall is plentiful and the peninsula is covered by tropical rain forests.
encarta.msn.com /encyclopedia_761576758/Mexico.html   (2475 words)

  
 Hardwoods
Eucalypts constitute most of the forest vegetation of Australia and are one of the most important hardwood timber resources in the world.
It occurs in dry lowland forests and semi-deciduous dry upland forests.
The dry fruits of mountain mahogany are easy to spot in the summer and fall, with their silvery, feathery styles glistening in the sunlight.
waynesword.palomar.edu /plsept99.htm   (5052 words)

  
 Table of Contents and Excerpt, Bray, Merino-Pérez, and Barry, The Community Forests of Mexico
Of this, 32.9 million hectares (52% of total forests and rainforests) are temperate zone forests and 30.7 million (48% of the total) are tropical forests, both tropical dry forests and rainforests (INEGI 1997).
It is not known how forest might have been defined and thus neither the absolute numbers of communities with forests on their lands nor the total number of hectares of that forest are known with any degree of precision.
Mexican forest policy has always been beset with tensions between forces that want to realize the ideals of the Mexican Revolution in terms of peasant empowerment and those that regard peasants as incapable of managing their forests for the good of the nation.
www.utexas.edu /utpress/excerpts/exbracom.html   (7166 words)

  
 [No title]   (Site not responding. Last check: 2007-10-12)
Dry forest covers nearly 30% of Mexico's land, with Pine and Oak species accounting for over 16%.
These dense forested tracts remain the largest expanse of tropical dry forest north of the equator.
The dry forests that cover one third of Mexico's land are disappearing at an alarming rate.
www.globalgiving.com /pfil/225/projdoc.doc   (1624 words)

  
 The Annotated Ramsar List: Mexico
Forest fires are increasingly common: in 1998, 50% of the park was burnt.
Mangrove forests dominated by Laguncularia racemosa and deciduous tropical forest are the dominant vegetation.
Endemic communities of swamp forests and of petenes, emerging islands of forests protected from saline intrusions, are mostly pristine and of global significance.
www.ramsar.org /profile/profiles_mexico.htm   (9075 words)

  
 ATB 1998 Program
Forest fragmentation in central Amazonia and its effects on leaf-litter ants.
Gene flow and dispersal of pollen and seed with respect to population and forest structure.
Abundance and diversity of insect herbivores foraging on seedlings in a rain forest in Guyana.
ecology.botany.ufl.edu /biotropica/atb_1998_program.htm   (2047 words)

  
 ALEAR : Products and Services - Congress   (Site not responding. Last check: 2007-10-12)
This is truth particularly in the case of Oaxaca, located in the southeastern of the Mexican Pacific: it limits at the north with Puebla and Veracruz, at the east with Chiapas and at the west with Guerrrero.
The highest levels of biodiversity are found in the low forests caducifolias (dry forests) and the forests of pine-encino of the state.
As it is the case all along the country, these forests have a high biological and environmental value, they produce a great rank of economic benefits and are extremely important for the welfare of the native towns and other local communities.
www.alear.org /english/products/congress/tourism.asp   (1123 words)

  
 ATBC 2004 Abstracts   (Site not responding. Last check: 2007-10-12)
Besides the dramatic reduction in forest area between 1960 and 1979, fragmentation metrics for this period showed a decrease in the number of patches and mean and median patch size; while edge density remained nearly constant and mean shape index increased.
Forest fragmentation and land cover change interact synergistically to expose more of the forest to fire and consequently raise the risk of unintended fires occurring across the entire landscape.
These results indicate that dry forest plants of riparian habitats present two peaks of leaf-flushing, GII colonize leaves produced in the first peak at the beginning of the wet season and accumulate or re-colonize leaves in the second peak at the beginning of the dry season.
darwin.fiu.edu /CETroB/ATBC2004/Abstracts.html   (19699 words)

  
 SignOnSanDiego.com > News > Mexico -- Smugglers decimate Mexican forests to make room for drug crops
Drug smugglers are believed to have contributed to heavy deforestation in dry, northern states such as Sinaloa and Sonora, where countless rows of coca, poppy and marijuana plants flourish in isolated valleys and police presence is minimal.
Logging concerns who cut down trees illegally and farmers who slash and burn trees in protected areas to make room for their sheep or cattle to graze are also responsible for decimating the country's forests, Cardenas said.
Despite federal efforts to regenerate forests, Cardenas said deforestation claims 40 trees in the time it takes authorities to plant just one new one.
www.signonsandiego.com /news/mexico/20021009-1506-mexico-deforestation.html   (369 words)

  
 Biodiversity Hotspots - Mesoamerica - Overview
The Mesoamerican forests are the third largest among the world’s hotspots.
The hotspot’s montane forests are important for amphibians, many endemic species of which are in dramatic decline due to an interaction between habitat loss, fungal disease and climate change.
The hotspot's major ecosystems are a complex mosaic of dry forests, lowland moist forest, and montane forests.
www.biodiversityhotspots.org /xp/Hotspots/mesoamerica   (297 words)

  
 Department of Botany and Plant Sciences
My recent research activities are conducted in close association with scientists from a new research center created by the University of Veracruz (Center for Tropical Research-CITRO) in collaboration with the University of California Riverside.
Biodiversity restoration of a tropical dry forest in Quintana Roo.
Impacts of early- and late-seral mycorrhizae during restoration in seasonal tropical forest, Mexico.
plantbiology.ucr.edu /people?Gomez-Pompa&show_for=new_window   (329 words)

  
 ICTE Award Recipients   (Site not responding. Last check: 2007-10-12)
The effect of the river dynamic on the habitat use and foraging behavior of forest birds restricted to river islands in northeastern Ecuador.
Feeding ecology of Neotropical carnivores in Caatinga, a seasonal dry forest in the northeast of Brazil.
Seed rain, seedling survival, and the role of frugivorous birds in regeneration of forest trees in tropical pastures.
www.umsl.edu /~biology/icte/award.html   (2044 words)

  
 Defenders Magazine - Defenders of Wildlife Magazine
While U.S. forests suffer from unsustainable logging and other threats, the breeding habitat for a large proportion of forest-dwelling North American migratory birds actually increased during the latter half of the 20th century, mainly because of the decline of farming, particularly in the eastern United States.
As of 1983, 17 percent of Costa Rican primary forest remained, representing a loss of 50 percent between 1940 and 1983.
Especially hard hit are the Pacific dry forests of Central America, which are nearly entirely destroyed.
www.defenders.org /defendersmag/issues/spring03/plightsongbird.html   (2225 words)

  
 Fig-eating review: References
FRANKIE, G. Comparitive phenological studies of trees in tropical wet and dry forests in the lowlands of Costa Rica.
KALINA, J. Ecology and behaviour of the Black-and-white Casqued Hornbill (Bycanistes subcylindricus) in Kibale Forest, Uganda.
Pigeons as seed predators and dispersers of figs in a Malaysian lowland forest.
www.geocities.com /mikeshanahan/figs/FIGREFS.html   (7601 words)

  
 Black Sapote
The fl sapote is native along both coasts of Mexico from Jalisco to Chiapas, Veracruz and Yucatan and in the forested lowlands of Central America, and it is frequently cultivated throughout this range.
In Mexico it grows naturally in dry forests or on alluvial clay near streams or lagoons where it is frequently subject to flooding.
The fl sapote is usually grown from seeds, which remain viable for several months in dry storage and germinate in about 30 days after planting in flats.
www.hort.purdue.edu /newcrop/morton/black_sapote.html   (1409 words)

  
 Mahogany - Swietenia macrophylla
It is usually found in dry forests but it also occurs in moist and gallery forests.
macrophylla is now widely planted throughout the whole of the tropics as a forest crop and currently provides almost all mahogany on the commercial market.
This indicator is more meaningful if it is used together with other drying information and actual shrinkage data in the tangential and radial directions.
www.exotichardwoods-southamerica.com /mahoganygenuine.htm   (924 words)

  
 Patterns of leaf-pathogen infection in the understory of a Mexican rain forest: incidence, spatiotemporal variation, ...
Patterns of leaf-pathogen infection in the understory of a Mexican rain forest: incidence, spatiotemporal variation, and mechanisms of infection
Appendix 2. List of the surveyed plant species during the dry and rainy seasons, with the number of sampled leaves, proportion of infected leaves, and the index of pathogen damage (IP) for each species.
1991 Altered patterns of herbivory and diversity in the forest understory: a case of the possible consequences of contemporary defaunation.
www.amjbot.org /cgi/content/full/88/4/634   (5459 words)

  
 ScienceDaily: Related Stories   (Site not responding. Last check: 2007-10-12)
Lemurs Critical To Regeneration Of Madagascar Forests (July 30, 1999) — The dry forests of western Madagascar are unusual: they have among the greatest diversity of trees in the world but the lowest diversity of animals that disperse the seeds.
Although the cause of these changes-in what are believed to be completely undisturbed, old-growth forests-is uncertain, a leading explanation is that they are being driven by rising levels of carbon dioxide in the atmosphere.
A new study released this week in the on-line edition of the journal Science suggests that tree diversity in tropical forests plays a crucial role in determining how much carbon these natural storehouses are able to hold, as well as their ability to provide other crucial ecosystem services such as preventing erosion.
www.sciencedaily.com /related.php?filename=000526071305   (860 words)

  
 DOG GRAPE (zarzaparrillasmilax aspera)
Mexican Zarzaparrilla or of Veracruz (Smilax aristolochiifolia Miller), that as its name indicates mainly gives in Veracruz and other places of Mexico.
The composition and properties of all these species of the Smilax sort are very similar to zarzaparrilla rough and were used by the natives like depurativas, and as curativos powers were attributed to them on sífilis, they raised great expectations, that soon were demonstrated infundadas.
Habitat: dry forests of Centro and South America and the south of Europe.
www.hipernatural.com /en/pltuva_de_perro.htm   (352 words)

  
 New Books Listing
Forest structure and fire hazard in dry forests of the western United States / David L. Peterson...
Projections of timber harvest in western Oregon and Washington by county, owner, forest type, and age class / Xiaoping Zhou, Richard W. Haynes, and R. James Barbour.
Poverty alleviation and forests in Vietnam / by William D. Sunderlin and Huynh Thu Ba.
library.oregonstate.edu /new/archive/052605.htm   (5530 words)

  
 Full vita of Dr. David A. White, Loyola University New Orleans
Vegetation patterns and environmental gradients in tropical dry forests of Yucatan Peninsula, Mexico.
Remnant bottomland forests near the terminus of the Mississippi River in southeastern Louisiana.
Woody vegetation of tropical lowland deciduous forests and Mayan ruins in the north-central Yucatan Peninsula, Mexico.
www.loyno.edu /~dawhite/FullVita.htm   (1835 words)

  
 Nature Field Guide :: Nature Project Profiles :: Calakmul Biosphere Reserve, Mexico
The dense green embrace of the reincarnated Maya Forest has preserved thousands of temples and stone structures at Calakmul, one of the seats of power of the ancient Maya Empire.
The forest of Calakmul sprawls across the southern state of Campeche in the Yucatán Peninsula—once the thriving heart of the Maya Empire.
The reserve anchors the northern end of the humid lowland jungle known as the Maya Forest, which stretches south into Guatemala and Belize.
nature.org /wherewework/fieldguide/projectprofiles/cbr.html   (513 words)

  
 MEXICO CHANNEL ® Discover Mexico : Oaxaca : The Mixtecs !
There are about 10,000 different types of plants and ecosystems in this territory - from wet jungles to tropical rain forests to dry forests, thorny forests and dry scrub.
There are also forests of conifers and oaks and incredible forests covered in mist.
The hillsides of the plain and the windward zone at the foot of the mountains towards the Pacific were covered with tropical forests.
www.trace-sc.com /mixtecs.htm   (5272 words)

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