Browsing by Autor "J. Julio Camarero"

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Adjusting xylem anatomy and growth to inter-annual climate variability in two Fabaceae species (Centrolobium microchaete, Cenostigma pluviosum) from Bolivian dry tropical forests
(Elsevier BV, 2021) Ana I. García‐Cervigón; Luz Natalia Mercado; Hooz A. Mendivelso; Marisol Toledo; J. Julio Camarero
Climatic influences on leaf phenology, xylogenesis and radial stem changes at hourly to monthly scales in two tropical dry forests
(Elsevier BV, 2015) Hooz A. Mendivelso; J. Julio Camarero; Emília Gutiérrez; Alejandro Castaño
Dendrochronology in Neotropical dry forests: methods, advances and applications
(Spanish Association for Terrestrial Ecology, 2016) Hooz A. Mendivelso; J. Julio Camarero; Emília Gutiérrez
Medivelso, H.A., Camarero, J.J., Gutiérrez, E. 2016. Dendrochronology in Neotropical dry forests: methods, advances and applications. Ecosistemas 25(2): 66-75. Doi.: 10.7818/ECOS.2016.25-2.08 Neotropical dry forests (TDFs) are characterized by a dry season which allows some tree species forming annual rings. In TDFs the study of tree rings using dendrochronology involves their identification, dating and measurement. In this way, we gain a retrospective view of tree growth at a temporal scale in agreement with tree longevity. Having a good knowledge of wood anatomy and phenology is necessary to perform dendrochronological studies in TDFs. For instance, most angiosperm tree species which have been studied in TDFs from a dendrochronological point of view present ring boundaries characterized by a band of marginal parenchyma. The information recorded in tree rings has allowed (i) quantifying how growth of TDF trees responds to climatic variables (mainly precipitation) and determining if it is related to large scale atmospheric patterns (El Niño-Southern Oscillation) (dendroclimatology); (ii) reconstructing the dynamics of many TDFs (dendroecology) by improving our knowledge of tree ages and growth rates. Dendroecology will provide forest managers with objective tools to quantify and forecast cutting cycles, making the management of TDFs more sustainable.
Differential Growth Responses to Water Balance of Coexisting Deciduous Tree Species Are Linked to Wood Density in a Bolivian Tropical Dry Forest
(Public Library of Science, 2013) Hooz A. Mendivelso; J. Julio Camarero; Oriol Royo Obregón; Emília Gutiérrez; Marisol Toledo
A seasonal period of water deficit characterizes tropical dry forests (TDFs). There, sympatric tree species exhibit a diversity of growth rates, functional traits, and responses to drought, suggesting that each species may possess different strategies to grow under different conditions of water availability. The evaluation of the long-term growth responses to changes in the soil water balance should provide an understanding of how and when coexisting tree species respond to water deficit in TDFs. Furthermore, such differential growth responses may be linked to functional traits related to water storage and conductance. We used dendrochronology and climate data to retrospectively assess how the radial growth of seven coexisting deciduous tree species responded to the seasonal soil water balance in a Bolivian TDF. Linear mixed-effects models were used to quantify the relationships between basal area increment and seasonal water balance. We related these relationships with wood density and sapwood production to assess if they affect the growth responses to climate. The growth of all species responded positively to water balance during the wet season, but such responses differed among species as a function of their wood density. For instance, species with a strong growth response to water availability averaged a low wood density which may facilitate the storage of water in the stem. By contrast, species with very dense wood were those whose growth was less sensitive to water availability. Coexisting tree species thus show differential growth responses to changes in soil water balance during the wet season. Our findings also provide a link between wood density, a trait related to the ability of trees to store water in the stem, and wood formation in response to water availability.
Environmental heterogeneity and dispersal processes influence post-logging seedling establishment in a Chiquitano dry tropical forest
(Elsevier BV, 2015) Robin Corrià-Ainslie; J. Julio Camarero; Marisol Toledo
Time-dependent effects of climate and drought on tree growth in a Neotropical dry forest: Short-term tolerance vs. long-term sensitivity
(Elsevier BV, 2014) Hooz A. Mendivelso; J. Julio Camarero; Emília Gutiérrez; Pieter A. Zuidema