@Article{CarvalhoNeBiPlKuDa:2013:DeSpEx,
author = "Carvalho, Anelena L. de and Nelson, Bruce W. and Bianchini, Milton
C. and Plagnol, Daniela and Kuplich, Tatiana Mora and Daly,
Douglas C.",
affiliation = "National Institute for Amazon Research, Cruzeiro do Sul, Brazil
and National Institute for Amazon Research, Manaus, Brazil and
Instituto de Criminal\ı \́ stica do Amazonas -
IC/Departamento de Pol\ı \́ cia Te \́ cnico
Cient\ı \́ fica – DPTC/Pol\ı \́ cia Civil
do Estado do Amazonas – PCAM, National Institute for Amazon
Research, Manaus, Brazil and National Institute for Amazon
Research, Manaus, Brazil and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and The New York Botanical Garden, Bronx, New
York, United States of America",
title = "Bamboo-Dominated Forests of the Southwest Amazon: Detection,
Spatial Extent, Life Cycle Length and Flowering Waves",
journal = "PLoS One",
year = "2013",
volume = "8",
number = "1",
pages = "e54852",
month = "Jan.",
keywords = "bamboo, forest, Amazon.",
abstract = "We map the extent, infer the life-cycle length and describe
spatial and temporal patterns of flowering of sarmentose bamboos
(Guadua spp) in upland forests of the southwest Amazon. We first
examine the spectra and the spectral separation of forests with
different bamboo life stages. False-color composites from orbital
sensors going back to 1975 are capable of distinguishing life
stages. These woody bamboos flower produce massive quantities of
seeds and then die. Life stage is synchronized, forming a single
cohort within each population. Bamboo dominates at least 161,500
km 2 of forest, coincident with an area of recent or ongoing
tectonic uplift, rapid mechanical erosion and poorly drained soils
rich in exchangeable cations. Each bamboo population is confined
to a single spatially continuous patch or to a core patch with
small outliers. Using spatial congruence between pairs of
mature-stage maps from different years, we estimate an average
life cycle of 2728 y. It is now possible to predict exactly where
and approximately when new bamboo mortality events will occur. We
also map 74 bamboo populations that flowered between 2001 and 2008
over the entire domain of bamboo-dominated forest. Population size
averaged 330 km2. Flowering events of these populations are
temporally and/or spatially separated, restricting or preventing
gene exchange. Nonetheless, adjacent populations flower closer in
time than expected by chance, forming flowering waves. This may be
a consequence of allochronic divergence from fewer ancestral
populations and suggests a long history of widespread bamboo in
the southwest Amazon.",
doi = "10.1371/journal.pone.0054852",
url = "http://dx.doi.org/10.1371/journal.pone.0054852",
issn = "1932-6203",
label = "lattes: 8997858562195060 5 CarvalhoNeBiPlKuDa:2013:DeSpEx",
language = "en",
targetfile = "journal.pone.0054852.pdf",
urlaccessdate = "20 set. 2024"
}