Описание
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).
Записи данных
Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 1 087 записей.
Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.
Версии
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Как оформить ссылку
Пожалуйста, имейте в виду, это старая версия набора данных. Исследователи должны дать ссылку на эту работу следующим образом:
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
Права
Исследователи должны соблюдать следующие права:
Публикующей организацией и владельцем прав на данную работу является Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Эта работа находится под лицензией Creative Commons Attribution (CC-BY 4.0).
Регистрация в GBIF
Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: 5846793d-f540-473c-88ee-23b2b13af7ef. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке GBIF Brazil.
Ключевые слова
Occurrence; species list; Amazonia; savanna; forest islands; seasonal forest
Контакты
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Географический охват
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.
Ограничивающие координаты | Юг Запад [2,886, -60,986], Север Восток [3,153, -60,764] |
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Временной охват
Дата начала / Дата окончания | 2013-07-03 / 2014-03-13 |
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Данные проекта
Описание отсутсвует
Название | Estrutura, biomassa arbórea e composição florística de ilhas de mata da savana de Roraima, norte da Amazônia brasileira |
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Финансирование | Projeto Institucional PPI-INPA 15/122 (Ecologia e Manejo dos Recursos Naturais de Savanas e Florestas de Roraima) |
Исполнители проекта:
Методы сбора
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.
Охват исследования | 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. |
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Контроль качества | 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. |
Описание этапа методики:
- 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).
- 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).
Данные коллекции
Название коллекции | Flora das Ilhas de Mata da Savana de Roraima |
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Библиографические ссылки
- 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
- Thiers, B. 2019. Index Herbariorum. A global directory of public herbaria and associated staff. New York Botanical Garden's Virtual Herbarium.
- 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.
Дополнительные метаданные
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
Альтернативные идентификаторы | 5846793d-f540-473c-88ee-23b2b13af7ef |
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https://ipt.sibbr.gov.br/sibbr/resource?r=forest-island_floristic |