scholarly journals New records and update on the geographic distribution of Lontra longicaudis (Olfers, 1818) (Carnivora: Mustelidae) in Seasonally Dry Tropical Forests of northeastern Brazil

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2108 ◽  
Author(s):  
Patrícia F. Rosas-Ribeiro ◽  
Rodrigo Ranulpho ◽  
Eduardo Venticinque
Keyword(s):  
Tropical Forests ◽  
Species Distribution ◽  
New Records ◽  
River Basins ◽  
Northeastern Brazil ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
Species Distribution Map ◽  
Lontra Longicaudis

We confirmed occurrences of Lontra longicaudis (Olfers, 1818) in Seasonally Dry Tropical Forests (Caatinga) of 10 river basins in northeastern Brazil, reporting the first records of the species in five of them. The species was not found in river basins totally inserted in Caatinga, nor where Caatinga borders Cerrado (Piauí state), indicating a gap in the species distribution. We report the first otter occurrence in Piauí, in the Cerrado biome of the southern part of the state. The relevance of these results for Neotropical Otter conservation is discussed, and an update of the species distribution map is proposed.

scholarly journals Spatial-temporal variation in litterfall in seasonally dry tropical forests in Northeastern Brazil

2020 ◽  
Vol 80 (2) ◽  
pp. 273-284
Author(s):  
V. F. P. Araújo ◽  
M. R. V. Barbosa ◽  
J. P. Araújo ◽  
A. Vasconcellos
Keyword(s):  
Tropical Forests ◽  
Vegetation Structure ◽  
Spatial Dynamics ◽  
Northeastern Brazil ◽  
Semiarid Region ◽  
Seasonally Dry ◽  
Litterfall Production ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
Temporal And Spatial

Abstract The production of litterfall is essential for nutrient cycling in terrestrial ecosystems. From November 2009 to October 2011, analyzed the monthly litterfall production in two areas of Caatinga, a type of Seasonally Dry Tropical Forest located in the Cariri Paraibano, in the semiarid region of the Paraíba, Northeastern Brazil. One of the areas, Private Natural Heritage Reserve (RPPN) Fazenda Almas, is legally protected, and the other, Fazenda Moreiras, does not. The aims were to evaluate the effects of precipitation, evapotranspiration and vegetation structure on the temporal and spatial dynamics of litterfall production. Eight sampling points were randomly chosen at each site, and two 1 m2 collectors were installed 50 m apart from each other. The collected material was sorted, dried and weighed. Additionally, the characteristics (density, species richness, height and mean basal area) of the tree-shrub stratum in plots with a 10 m radius surrounding each collector. Total litterfall production was 4,500 kg ha-1 yr-1 for Fazenda Almas and 3,300 kg ha-1 yr-1 for Fazenda Moreiras; these values were within the expected range for Seasonally Dry Tropical Forests. The inter- and intra-annual variation in litterfall production was positively correlated with precipitation and evapotranspiration rates, and four months after the highest precipitation rates, there was a marked decrease in litterfall occurred during the dry season. Furthermore, the contributions of the material fractions were distinct with the leaf fraction representing for more than 60% of the litterfall, and the vegetation structure explained 75% of the variation in litterfall production. Therefore, climatic factors and vegetation structure affect the temporal and spatial dynamics of litterfall production and consequently influence nutrient dynamics in the semiarid region of Brazil.

Pollen morphology of Crotonoideae (Euphorbiaceae) from Seasonally Dry Tropical Forests, Northeastern Brazil

2016 ◽  
Vol 302 (7) ◽  
pp. 795-817 ◽  
Author(s):  
Lidian R. de Souza ◽  
Daniela S. Carneiro-Torres ◽  
Marileide D. Saba ◽  
Francisco de A. R. dos Santos
Keyword(s):  
Tropical Forests ◽  
Pollen Morphology ◽  
Northeastern Brazil ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

scholarly journals Amphibia, Anura, São Desidério, western Bahia uplands, northeastern Brazil

Check List ◽  
2003 ◽  
Vol 5 (4) ◽  
pp. 903 ◽  
Author(s):  
Paula Hanna Valdujo ◽  
Renato Sousa Recoder ◽  
Mariana Mira Vasconcellos ◽  
Alexandre De Souza Portella
Keyword(s):  
Tropical Forests ◽  
Northeastern Brazil ◽  
Colonization History ◽  
Seasonally Dry ◽  
Anuran Species ◽  
Caatinga Biome ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
First Time ◽  
Temporary And Permanent Ponds

The contact zone between Cerrado and Caatinga is among the least known areas in the Cerrado biome, and no information is available about the anuran species occurring in this area and their ecology. Along this area, seasonally dry tropical forests are common on the lowlands with some enclaves inside the Cerrado core area. Here, we present for the first time a list of species on this zone recognized as a priority area for conservation inside the Cerrado. We sampled anuran species within 30 km of São Desidério, a city in western Bahia, from habitats including temporary and permanent ponds in Cerrado and seasonally dry tropical forests, as well as veredas and marshes. We recorded 32 anuran species, belonging to 12 genera in five families. Hylidae was the richest family (ten species) followed by Leiuperidae and Leptodactylidae (eight species each), Bufonidae (five species), and Microhylidae (two species). The heterogeneity of this site could be demonstrated by the presence of species with different dispersal/colonization history with eight species (25 %) endemic to Cerrado, three (9 %) shared with Caatinga biome, two (6 %) shared with Atlantic Forest, and eighteen (56 %) widespread through adjacent biomes. 

scholarly journals El Niño-Southern Oscillation affects the water relations of tree species in the Yucatan Peninsula, Mexico

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jorge Palomo-Kumul ◽  
Mirna Valdez-Hernández ◽  
Gerald A. Islebe ◽  
Manuel J. Cach-Pérez ◽  
José Luis Andrade
Keyword(s):  
Water Potential ◽  
Leaf Area ◽  
Tropical Forests ◽  
Specific Leaf Area ◽  
Tree Species ◽  
Deciduous Species ◽  
Mature Trees ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

AbstractWe evaluated the effect of ENSO 2015/16 on the water relations of eight tree species in seasonally dry tropical forests of the Yucatan Peninsula, Mexico. The functional traits: wood density, relative water content in wood, xylem water potential and specific leaf area were recorded during the rainy season and compared in three consecutive years: 2015 (pre-ENSO conditions), 2016 (ENSO conditions) and 2017 (post-ENSO conditions). We analyzed tree size on the capacity to respond to water deficit, considering young and mature trees, and if this response is distinctive in species with different leaf patterns in seasonally dry tropical forests distributed along a precipitation gradient (700–1200 mm year−1). These traits showed a strong decrease in all species in response to water stress in 2016, mainly in the driest site. Deciduous species had lower wood density, higher predawn water potential and higher specific leaf area than evergreen species. In all cases, mature trees were more tolerant to drought. In the driest site, there was a significant reduction in water status, regardless of their leaf phenology, indicating that seasonally dry tropical forests are highly vulnerable to ENSO. Vulnerability of deciduous species is intensified in the driest areas and in the youngest trees.

scholarly journals Taxonomic revision of Amorimia W.R. Anderson (Malpighiaceae)

Hoehnea ◽  
2018 ◽  
Vol 45 (2) ◽  
pp. 238-306 ◽  
Author(s):  
Rafael Felipe de Almeida
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Taxonomic Revision ◽  
Identification Key ◽  
Risk Assessments ◽  
Distribution Maps ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

ABSTRACT The taxonomic revision of Amorimia (Malpighiaceae) is presented, including typifications, and descriptions for all accepted species. The genus is endemic to Seasonally Dry Tropical Forests and Rainforests of South America, and its species can be distinguished by morphological details of leaves, indumenta, inflorescences, flowers, and fruits. This study includes an identification key for the subgenera and species of Amorimia, illustrations, distribution maps, conservation risk assessments, and comments on ecology, nomenclature, and taxonomy for all species. Additionally, I provide a key to differentiate Amorimia from the remaining genera of the Malpighioid clade.

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