Description
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.
Enregistrements de données
Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 3 122 enregistrements.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
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Comment citer
Veuillez noter qu'il s'agit d'une ancienne version du jeu de données. Les chercheurs doivent citer cette ressource comme suit:
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. v1.12. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Occurrence. https://ipt.sibbr.gov.br/sibbr/resource?r=maraca_comp_floristic&v=1.12
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 01d28467-87a1-4d64-ba40-4e3e1cc9091b. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Brazil.
Mots-clé
Occurrence; Ecotone forests; floristic survey; species richness; plant community; plant diversity
Contacts
- Créateur ●
- Personne De Contact
- Créateur ●
- Personne De Contact
- Utilisateur
http://orcid.org/https://orcid.org/0000-0002-7482-346X
- Utilisateur
Couverture géographique
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.
| Enveloppe géographique | Sud Ouest [3,36, -61,486], Nord Est [3,405, -61,442] |
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Couverture temporelle
| Date de début / Date de fin | 2017-12-15 / 2017-12-22 |
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Données sur le projet
Pas de description disponible
| Titre | CRESCIMENTO E MORTALIDADE DE ÁRVORES EM FLORESTAS ECOTONAIS DE RORAIMA: EFEITO DAS CONDICIONANTES AMBIENTAIS E DA VARIABILIDADE CLIMÁTICA |
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| Financement | CNPq (Processo n. 403591/2016-3) |
Les personnes impliquées dans le projet:
Méthodes d'échantillonnage
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.
| Etendue de l'étude | 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). |
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Description des étapes de la méthode:
- 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.
Métadonnées additionnelles
| Objet | 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. |
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| Identifiants alternatifs | 01d28467-87a1-4d64-ba40-4e3e1cc9091b |
| https://ipt.sibbr.gov.br/sibbr/resource?r=maraca_comp_floristic |