Author: Reinaldo Imbrozio Barbosa
Keywords: Occurrence, Ecotone forests, floristic survey, species richness, plant community, plant diversity

Tree species composition in ecotone forests of the eastern Maracá Island, Roraima, northern Brazilian Amazonia: preliminary data

Wiliamar Rodrigues Silva^1, Carlos Darwin Angulo Villacorta^1, Lidiany Camila Silva Carvalho^2, Hugo Leonardo S. Farias^3, Ricardo Oliveira Perdiz^4, Reinaldo Imbrozio Barbosa^5, Reinaldo Imbrozio Barbosa^6

1 UFRR, Campus do Paricarana, 69319-000, Boa Vista, Brazil; 2 University of Exeter, Exeter, United Kingdom; 3 UFRR, , Brazil; 4 INPA, Boa Vista, Brazil; 5 INPA, Rua Coronel Pinto 315 - Centro, 69301-150, Boa Vista, Brazil; 6 

Corresponding author(s): Wiliamar Rodrigues Silva (w.r.silva1984@gmail.com)Carlos Darwin Angulo Villacorta (cangulovillacorta@gmail.com)Lidiany Camila Silva Carvalho (lidycamila.carvalho@gmail.com)Hugo Leonardo S. Farias (hugosousafarias@hotmail.com)Ricardo Oliveira Perdiz (ricoperdiz@gmail.com)Reinaldo Imbrozio Barbosa (reinaldo@inpa.gov.br)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Silva W R, Villacorta C D A, Carvalho L C S, Farias H L S, Perdiz R O, Barbosa R I (2019): Tree species composition in ecotone forests of the eastern Maracá Island, Roraima, northern Brazilian Amazonia: preliminary data. v1.8. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Occurrence. https://ipt.sibbr.gov.br/sibbr/resource?r=maraca_comp_floristic&v=1.8

Abstract

Forest inventory carried out in the research grid of the Research Program on Biodiversity (PPBio) located in the eastern Maracá Island, Roraima, northern Brazilian Amazonia. The inventory was carried out by the Research Group "Ecology and Natural Resource Management of Savannas and Forests of Roraima", linked to the National Institute for Research in Amazonia (INPA) in December / 2017. The survey was based on 129 permanent plots dispersed in six trails that cross the research grid. Measurements of stem diameter (DBH = diameter at the breast height) of each observed individual (palms and trees) were taken. All floristic data were correlated with the dominant forest types of the sampled area.

Keywords: Occurrence, Ecotone forests, floristic survey, species richness, plant community, plant diversity

General description

Purpose: This dataset is associated with the PhD thesis of Williamar Rodrigues Silva (Análise das condicionantes ambientais e variabilidade climática no crescimento e mortalidade de árvores nas florestas ecotonais da ESEC Maracá, Roraima), with defense scheduled for August / 2020, PRONAT-UFRR, Boa Vista, Roraima, Brazil.

Project details

Project title: CRESCIMENTO E MORTALIDADE DE ÁRVORES EM FLORESTAS ECOTONAIS DE RORAIMA: EFEITO DAS CONDICIONANTES AMBIENTAIS E DA VARIABILIDADE CLIMÁTICA
Personnel: Reinaldo Imbrozio Barbosa
Funding: CNPq (Processo n. 403591/2016-3)

Data published through GBIF: https://ipt.sibbr.gov.br/sibbr/resource?r=maraca_comp_floristic

Spatial coverage

General spatial coverage: The study was carried out in an ecotone zone (savanna-forest), where predominate a mosaic formed by ombrophilous and seasonal forests in the east of Maracá Island, Roraima, northern Brazilian Amazon. The Maracá Island is part of the Maracá Ecological Station, a Brazilian federal conservation unit with approximately 101,000 ha, located on the river Uraricoera, between the municipalities of Alto Alegre and Amajari. The study area is one of the last ecotonal forests zones that have contact with the larger savanna area of the northern Brazilian Amazonia (called as “Lavrado de Roraima”). Despite the increase in anthropic pressures in recent years, the area has excellent conservation status and it can provide important answers on the behavior of tree species face to the global warming.
Coordinates: 3°21'36''N and 3°24'18''N Latitude; 61°29'9.6''W and 61°26'31.2''W Longitude 

Temporal coverage: December 15, 2017 - December 22, 2017

Methods

Method step description: All the individuals observed were collected and morphotyped in the field, being later delimited and identified botanically for legal deposit. Vouchers representing most of the inventoried species were deposited in INPA, MIRR and UFRR Herbariums.
Study extent description: The study was carried out in the ecotone forests of the eastern Maracá Island (Maracá Ecological Station), a forest-savanna contact region located in Roraima, northern Brazilian Amazonia: 3.360086 N to 3.405148 N / -61.44169 W a -61.48583 W. The vegetation of the region is typically of ecotone forests, a mosaic of ombrophilous forest with seasonal forests (deciduous and semideciduous).
Sampling description: The inventory was carried out in 129 permanent plots (10 m x 50 m each one = 6.45 ha) dispersed in six trails that cross the PPBio research grid. Each plot was arranged systematically along the six trails with a minimum spacing of 150 m between them to avoid pseudoreplications. The floristic inventory was carried out based on stem diameter measurements (cm), plant samples (taxonomy), general description of the individual / species, including photographical register.

Datasets

Dataset description
Object name: Darwin Core Archive Tree species composition in ecotone forests of the eastern Maracá Island, Roraima, northern Brazilian Amazonia: preliminary data
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ipt.sibbr.gov.br/sibbr/archive.do?r=maraca_comp_floristic
Publication date of data: 2019-10-01
Language: Portuguese
Licences of use: Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License

Metadata language: English
Date of metadata creation: 2019-04-18
Hierarchy level: Dataset