Variation in Seed Harvest Potential of Carapa guianensis Aublet in the Brazilian Amazon: A Multi-Year, Multi-Region Study of Determinants of Mast Seeding and Seed Quantity

Autor: Christie A. Klimas, Patrícia Costa, Fernanda Lopes da Fonseca, A. C. Lira-Guedes, Carolina Volkmer de Castilho, Lúcia Helena de Oliveira Wadt
Přispěvatelé: CHRISTIE A. KLIMAS, DePaul University, Chicago, USA, LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO, CAROLINA VOLKMER DE CASTILHO, CPAF-RR, ANA CLAUDIA LIRA GUEDES, CPAF-AP, PATRICIA DA COSTA, CNPMA, FERNANDA LOPES DA FONSECA, CPAF-AC.
Rok vydání: 2021
Předmět:
0106 biological sciences
multi-use species
010504 meteorology & atmospheric sciences
Seedling production
non-timber forest products
ved/biology.organism_classification_rank.species
forest management
Várzea
Colheita
Climatic factors
Biology
Tropical rain forests
010603 evolutionary biology
01 natural sciences
Acre
Amazonia
Floresta Tropical
Dry season
Harvesting
Ecosystem
Precipitation
Mainlands
QK900-989
Plant ecology
0105 earth and related environmental sciences
Carapa guianensis
Climate pattern
Rondônia
Manejo florestal
Forest management
Produto florestal não madeireiro (PFNM)
Amazon rainforest
ved/biology
Roraima
Diameter at breast height
Variação climática
Floodplains
food and beverages
Forestry
Produção de Sementes
Multi-use species
Terra firme
Carapa Guianensis
Habitat
Agronomy
Andiroba
Nontimber forest products
Zdroj: Forests
Volume 12
Issue 6
Forests, Vol 12, Iss 683, p 683 (2021)
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
ISSN: 1999-4907
DOI: 10.3390/f12060683
Popis: This work augments research on masting for the economically important tropical tree Carapa guianensis Aublet, specifically on whether determinants of mast years vary regionally, spatially, and due to longer term ENSO climate patterns. Longer term measurements (an 11-year period in Acre and Roraima
4 years and 8 months in Amapá) from three regions of the Brazilian Amazon allowed for the analysis of whether climate cues were regionally consistent for this species. We used generalized linear mixed models, to determine which factors were significant in predicting whether trees would produce in a given year and to model the seed production quantity. We found a positive effect of increasing the diameter at breast height (dbh) on the quantity and likelihood of seed production. Our results also suggested that ecosystems and climate cues may jointly affect seed production. In flooded forests, increases in dry season rainfall had a negative impact on the likelihood of seed production whilst none of the precipitation variables investigated influenced the quantity of seeds produced. In drier terra firme forests in Acre with extended dry seasons, increases in dry season precipitation had significant and positive impacts on both the likelihood and the quantity of seed production. Our results illustrate the importance of considering plant habitat and climate to better understand individual and regional differences in seed production and their responses to inter-annual climate variation.
Databáze: OpenAIRE
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