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Abstract: In tropical dry forests, the dynamics of herbaceous populations is strongly influenced by seasonal and annual variation in total rainfall. Moreover, the present and past events of climatic anomalies (e.g. severe drought years and erratic rain before the gro
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Abstract: Tropical moist forests are ecosystems of high biodiversity and high endemism, like the Choco biogeographic ecoregion. Few studies have characterized this vegetation system, and less attention has been given to the epiphytes. The aim of this study, was to ev
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Resumen: Las costas rocosas de origen calizo, son ecosistemas comúnes en el estado de Quintana Roo en México. En el verano del 2012, se realizó una investigación de campo de comunidades inter-mareales rocosas en 10 sitios del Estado, tanto en la Riviera Maya como
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Abstract: The Atlantic Coast Restinga is a mosaic of plant communities with a distinct floristic and phytophysi - ognomy, exposed to luminous, thermal, and saline stresses. Plants of the restinga must have special features commonly associated to xeric environments,
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Resumen: En el noroeste argentino se reconocen cinco espe - cies o biotipos del género Cactoblastis Ragonot sobre cactáceas: C. cactorum (Berg), C. bucyrus Dyar, C. mun - delli Heinrich, C. doddi Heinrich y C. ronnai (Brèthes). Cactoblastis doddi se ali
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Abstract: The structure, dynamics and density of plant populations in different ecosystems are controlled by climatic seasonality. Seed rain contributes to both establishment and maintenance of the forest as well as to the recovery of disturbed areas near forest frag
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Resumen: La estructura de la comunidad de parásitos, determi - nada mediante análisis de anidamiento, varía considera - blemente en función de la especie hospedera y el tamaño corporal de la misma. El patrón anidado es aquel en el que comunidades pobres en especies
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Abstract: The input of contaminants to coastal ecosystems is a global problem on the rise. Data on metal pol - lution from tropical sites is often lacking and pilot surveys are urgently needed to provide a general framework to estimate the relative impact of these and
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Abstract: Sea cucumbers have an important ecological role in the marine environment because they are able to process organic and inorganic matter, which contributes to the oxygenation and energy transfer in the ecosystem. In general, there is a lack of knowledge on
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Abstract: Most species of the Neotropical genus Holopothrips are associated with plant galls but very little is known about their biology. Here, we provide observations on the biology of a new species of Holopothrips associated with leaf-vein galls on four species
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Abstract: Wetlands are important wildlife habitats that also provide vital services for human societies. Unfortunately, they have been disappearing due to human activities such as conversion to farmland, pollution, habitat fragmentation, invasion of alien species, an
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Abstract: Aves Island Wildlife Refuge is the second most important nesting colony for green turtles ( Chelonia mydas ) in the Caribbean. Even though some research projects have led to a solid source of knowledge about this species’ ecology, little information about i
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Abstract: In America, the species of genus Centropomus (Snooks) are a key component of the tropical estuarine ichthyofauna. These species use brackish water bodies mainly as nursery areas, although adult specimens are also present. The Yellow-fin snook Centropomus
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Abstract: The turtle Podocnemis expansa is an important wildlife species from the Amazon rainforest of Brazil. This also represents an important resource for coastal communities, as it has been historically consumed as food. Nevertheless, besides the sustainability
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Abstract: Rhizoprionodon lalandii is a small shark (< 1.5 m) classified as Data Deficient by IUCN; however, in Venezuelan coastal waters, it represents one of the most captured species, with daily landings in many areas of the country, being an important component o
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Abstract: The early life history stages are inadequately known for most fishes of the Neotropical region. Thus, larvae and juveniles of the species Pachyurus bonariensis and Plagioscion ternetzi, two corvina species found in the Pantanal of Mato Grosso, Brazil, w
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Abstract: Phenology of plants, or the timing of life cycle events, is important for understanding plant ecology, forest dynamics, and plant-animal interactions. In tropical forests, studies that document epiphyte reproductive phenology are relatively few because of t
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Abstract: Comanthera brasiliana , C. magnifica and C . suberosa (Eriocaulaceae) are included in the Brazilian list of endangered species, due to intensive harvest and micro-endemism. These species form the clade of Comanthera magnifica , along with C. brunnea
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Abstract: Mangroves are plant associations that are easily adapted to saline conditions and fluctuating levels of flooding. This ecosystem provides a wide variety of goods and services as carbon storage. Structural dif - ferences, species composition and micro-environ
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Abstract: Food web studies, which include qualitative and quantitative information about species interactions for all trophic levels in a specific community, are important tools to characterize the community structure, and to understand the role of species interactio
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Abstract: The trade-off seed size/number is a recognized phenomenon capable of shaping ecological processes of colonization and establishment of plant species. Studies that describe trade-offs size/number of seeds in supra- annual fruiting species are still rare. In t
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Abstract: Seed germination and dormancy of Miconia chartacea (Melastomataceae) in response to light, temperature and plant hormones. Miconia chartacea is a widely distributed tree along both altitudinal and latitudinal gradients in Brazil, and it can be found in
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Abstract: Reactive oxygen species (ROS) are present in all aerobic organisms, but the seed deterioration pro - cesses can increase its production. Oxidative stress caused by higher endogenous ROS may cause irreparable damage to cells, leading to the loss of seed viabi
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Abstract: Floral and reproductive biology of Vaccinium meridionale (Ericaceae) in the Eastern Andes of Colombia. Vaccinium meridionale is a wild plant producing e.dible fruits in the mountain areas of Northern South America. However, the fruits of this species has
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Abstract: Over the years, sawmilling industries have shown a high growth in the rain forest areas of Nigeria, releasing several wastes into the environment. This study aims at using earthworms ( Eudrilus eugeniae, Libyodrilus violaceous and Hyperiodrilus africanus
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Abstract: Palaeoenvironments of Rhizophora mangle (Rhizophoraceae) in Castilletes, Alta Guajira, Venezuela according to paleoconchas of Crassostrea rhizophorae (Ostreoida: Ostreidae). Shell middens are a very characteristic feature of coastal human adaptations.
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Abstract: Tupinambis teguixin , the common tegu, is the only species of the genus found in Venezuela. It is distributed in different bioregions in the Neotropics, some of them separated by geographic barriers that may restrict gene flow among populations. Thus, to as
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Abstract: Panama is a small Central American country for which apparently there are no specific scientometric studies. We analyzed 4 854 research documents originating in Panama in the Science Citation Index Expanded (SCI-EXPANDED). Most are formal articles and nearly
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