scholarly journals Influence of environmental variations on the formation of microhabitats within a fragment of Seasonally Dry Tropical Forest - SDTF, Brazil

2018 ◽  
Vol 42 (2) ◽  
Author(s):  
Gabriela Gomes Pires de Paula ◽  
Rubens Manoel dos Santos ◽  
Gisele Cristina de Oliveira Menino ◽  
Deborah Mattos Guimarães Apgaua ◽  
Diego Gualberto Sales Pereira ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Indicator Species ◽  
Tree Species ◽  
Environmental Variables ◽  
Indicator Species Analysis ◽  
Seasonally Dry ◽  
Species Analysis ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests ◽  
Environmental Variations

ABSTRACT Caatinga represents one of the two major centers of Seasonally Dry Tropical Forests (SDTF) and is completely inserted in the Brazilian territory. The present work aimed to evaluate the structure of two micro-environments and relate them to environmental variables. Twenty 20 × 20 m plots were placed in which we measured the height and CBH and made the botanical identification of all trees with CBH ≥10 cm. The CCA and indicator species analysis presented a clear distribution of species according to the micro-environments. We concluded that the presence of limestone slabs provided the formation of microhabitats, thus influencing the distribution and composition of tree species, what characterized the phytoecological unit here referred as “furados”.

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 The role of climate and environmental variables in structuring bird assemblages in the Seasonally Dry Tropical Forests (SDTFs)

PLoS ONE ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. e0176066 ◽  
Author(s):  
Gabriela Silva Ribeiro Gonçalves ◽  
Pablo Vieira Cerqueira ◽  
Leandro Schlemmer Brasil ◽  
Marcos Pérsio Dantas Santos
Keyword(s):  
Tropical Forests ◽  
Environmental Variables ◽  
Bird Assemblages ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

Selecting framework tree species for restoring seasonally dry tropical forests in northern Thailand based on field performance

2003 ◽  
Vol 184 (1-3) ◽  
pp. 177-191 ◽  
Author(s):  
Stephen Elliott ◽  
Puttipong Navakitbumrung ◽  
Cherdsak Kuarak ◽  
Sudarat Zangkum ◽  
Vilaiwan Anusarnsunthorn ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Tree Species ◽  
Field Performance ◽  
Northern Thailand ◽  
Seasonally Dry ◽  
Seasonally Dry Tropical Forests ◽  
Dry Tropical Forests

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.

Patterns of Indigenous Tree Species Distribution in Guangdong Province and the Implications for Tree Introduction

2012 ◽  
Vol 518-523 ◽  
pp. 5324-5329 ◽  
Author(s):  
Xiang Lin Wang ◽  
Jing Peng Li ◽  
Yan Zhang ◽  
Zhi Yao Su
Keyword(s):  
Species Distribution ◽  
Indicator Species ◽  
Tree Species ◽  
Guangdong Province ◽  
Distribution Patterns ◽  
Indicator Species Analysis ◽  
Mountain Areas ◽  
Species Analysis ◽  
Significant Difference ◽  
Indigenous Tree Species

Distribution pattern of 1148 indigenous tree species in Guangdong province and their relations to the environment were investigated based on the 0.5°×0.5° latitude-longitude grid system. The results showed that indigenous tree species richness increased with increasing latitude. Richness peaked in the middle of the study area with longitudinal gradient. Four ecological areas for indigenous tree species distribution were delimited using cluster analysis and TWINSPAN (two-way indicator species analysis). Indicator Species Analysis showed a significant difference was found in indicator species distribution across latitude gradient and the 4 ecological areas. Northern mountain areas and southern coastal areas possessed most of the indicator species (IV ≥ 0.7), among which Celtis philippensis, Gironniera cuspidata and Symplocos chunii were strongly indicative of the environmental characteristics. The study of distribution patterns and classification of ecological areas, which reflects different geographical and climatic characteristics, will be of significant implications for introduction of indigenous tree species from natural ecological areas.

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