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Tree species composition of natural forest islands in a savanna matrix in the northern Brazilian Amazonia

Latest version published by Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr on Dec 13, 2019 Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr

A forest inventory was carried out in 12 forest islands scattered in the large savanna matrix of Roraima, northern Brazilian Amazon. The fieldwork occurred between 2013-2014 based on direct observations along transects established between the edge-interior gradient of each sampled forest island. It was investigated species composition and forest structure variables: stem diameter (DBH = diameter at breast height ≥ 10 cm) and total height (visually estimated). All floristic dataset was correlated with the forest fragment size. The survey was conducted by the Research Group "Ecology and Natural Resource Management of Roraima Savanna", associated to the National Institute for Research in Amazonia (INPA).

Data Records

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How to cite

Researchers should cite this work as follows:

Jaramillo M M A, Turcios M M, Perdiz R O, Carvalho L C S, Barbosa R I (2019): Tree species composition of natural forest islands in a savanna matrix in the northern Brazilian Amazonia. v1.9. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Occurrence. https://ipt.sibbr.gov.br/sibbr/resource?r=forest-island_floristic&v=1.9

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 5846793d-f540-473c-88ee-23b2b13af7ef.  Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Brazil.

Keywords

Occurrence; species list; Amazonia; savanna; forest islands; seasonal forest

Contacts

Who created the resource:

Margarita Maria Almanza Jaramillo
MSc
UFRR Campus do Paricarana 69319-000 Boa Vista Roraima BR +559536239433
Maryory Medina Turcios
MSc
UFRR Campus do Paricarana 69319-000 Boa Vista Roraima BR +559536239433
Ricardo Oliveira Perdiz
Dr.
INPA Rua Coronel Pinto 315 - Centro 69301-150 Boa Vista Roraima BR +559536239433
Lidiany Camila Silva Carvalho
Dr.
University of Exeter 69319-000 Exeter GB +559536239433
Reinaldo Imbrozio Barbosa
Dr.
INPA Rua Coronel Pinto 315 - Centro 69301-150 Boa Vista Roraima BR +559536239433

Who can answer questions about the resource:

Margarita Maria Almanza Jaramillo
MSc
UFRR Campus do Paricarana 69319-000 Boa Vista Roraima BR +559536239433
Maryory Medina Turcios
MSc
UFRR Campus do Paricarana 69319-000 Boa Vista Roraima BR +559536239433
Ricardo Oliveira Perdiz
Dr.
INPA Rua Coronel Pinto 315 - Centro 69301-150 Boa Vista Roraima BR +559536239433
Lidiany Camila Silva Carvalho
Reinaldo Imbrozio Barbosa
Dr.
INPA Rua Coronel Pinto 315 - Centro 69301-150 Boa Vista Roraima BR +559536239433

Who filled in the metadata:

Reinaldo Imbrozio Barbosa
Dr.
INPA Rua Coronel Pinto 315 - Centro 69301-150 Boa Vista Roraima BR +559536239433

Geographic Coverage

The study was carried out on 12 natural forest fragments (forest islands) dispersed in a Roraima’s savanna area, located in the municipality of Boa Vista, state of Roraima, northern Brazilian Amazonia. This area is legally characterized as an INCRA agricultural colonization project - currently named as “Projeto de Assentamento Nova Amazônia I” (or PANA I). The PANA I cover an area > 43,000 ha in extension in the confluence zone between Rio Cauamé and Rio Murupu, both integrating the Rio Branco basin.

Bounding Coordinates South West [2.886, -60.986], North East [3.153, -60.764]

Temporal Coverage

Start Date / End Date 2013-07-03 / 2014-03-13

Project Data

No Description available

Title Estrutura, biomassa arbórea e composição florística de ilhas de mata da savana de Roraima, norte da Amazônia brasileira
Funding Projeto Institucional PPI-INPA 15/122 (Ecologia e Manejo dos Recursos Naturais de Savanas e Florestas de Roraima)

The personnel involved in the project:

Author
Margarita Maria Almanza Jaramillo

Sampling Methods

The natural forest fragments (forest islands) inventoried are Pleistocene relics that represent the richness and tree species composition of the past forest formations occurring in the forest-savanna contact zone of the northern Brazilian Amazonia. The forest inventory was articulated through the establishment of three transects crossing each island in the north-south direction. In each transect, sampling plots (10 m x 30 m) were dispersed between the border and the interior of the fragments: 8-10 plots for fragments with area > 30 ha, 4-8 for islands between 10-30 ha, and 2-6 for islands < 10 ha. This sampling design was the most adequate to represent the forest fragments, avoiding pseudo replication and maintaining a minimum distance (independence) between transects and plots. Forest inventory was performed based on measurements of stem DBH (cm) and individual total height (m); the last one by visual estimates. Vegetative and reproductive material were collected, as well as a general description of each species was done. Photographs of all collected morphotypes were done too.

Study Extent The study was carried out in 12 forest fragments distributed in the Roraima’s savanna region, located in the municipality of Boa Vista (state of Roraima), northern Brazilian Amazonia, in a locality currently known as “Projeto de Assentamento Nova Amazônia I” (PANA I): 2.8864 N to 3.1526 N / -60.7638 W at -60.9865 W. The phytophysionomic formation of the region is typically savanna, ranging from grassy to parkland, with several forest fragments scattered in the general landscape. The temporal coverage of the study was 07/2013 to 03/2014.
Quality Control All the individuals observed were measured. Most species were collected and registered by a numbered tag in the fieldwork. All of them were identified botanically to deposit in herbariums. Thirty-six vouchers representing most of the inventoried species were deposited in the UFRR Herbarium.

Method step description:

  1. The species identification was done by R. O. Perdiz using both (i) specific literature and (ii) comparison with herbarium specimens from INPA, K, MIRR, P, RB, SPF, UFRR, and US, including the digital resources of Projeto REFLORA (Plantas do Brasil: Resgate Histórico e Herbário Virtual para o Conhecimento e Conservação da Flora Brasileira - http://reflora.jbrj.gov.br/reflora/herbarioVirtual/). Herbaria acronyms follow Thiers (2019).
  2. Scientific names of the species list were checked against database provided by BFG (2015) and Tropicos (http://www.tropicos.org/). The circumscriptions for the botanical families followed APG IV (2016).

Collection Data

Collection Name Flora das Ilhas de Mata da Savana de Roraima

Bibliographic Citations

  1. APG-IV, 2016. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181, 1-20. http://dx.doi.org/10.1111/boj.12385
  2. Thiers, B. 2019. Index Herbariorum. A global directory of public herbaria and associated staff. New York Botanical Garden's Virtual Herbarium.
  3. BFG (Brazil Flora Group). 2015. Growing knowledge: an overview of Seed Plant diversity in Brazil. Rodriguésia 66, 1085-1113. http://dx.doi.org/10.1590/2175-7860201566411.

Additional Metadata

This dataset is associated to the Master Thesis of Margarita Maria Almanza Jaramillo (Estrutura, biomassa arbórea e composição florística de ilhas de mata da savana de Roraima, Norte da Amazônia Brasileira), concluded in August/2015 in the PRONAT/UFRR, Boa Vista, Roraima - http://bdtd.ibict.br/vufind/Record/UFRR_7f0b9955cdd438aabdb34036bc47394c

Alternative Identifiers 5846793d-f540-473c-88ee-23b2b13af7ef
https://ipt.sibbr.gov.br/sibbr/resource?r=forest-island_floristic