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Publications (32)
FULL TEXT DOWNLOAD LINK UNTIL SEPT 30 https://authors.elsevier.com/c/1bYnRB8ccoJOV
Recent studies have shown the importance of subtropical forests as terrestrial carbon sinks and also their vulnerability to human disturbances and climate change. The Semi-deciduous Atlantic Forest presents large extensions replaced by productive uses, such as tree...
https://authors.elsevier.com/a/1f7TD1L%7EGwUkET
Anyone clicking on this link before July 12, 2022 will be taken directly to the final version of the article.
Long-term studies are key to understanding the dynamics of managed forests, especially as related to timber supplies. We evaluated 20 years of recovery of pre-harvest structure, biomass, and...
R������. Las parcelas forestales permanentes son áreas de muestreo donde se registran periódicamente la identidad, abundancia y tamaño de los árboles, para estudiar cómo cambian los bosques en relación con el clima, los disturbios naturales y los usos y manejos. Hasta hoy, los patrones de cambio observados con parcelas permanentes en la Argentina t...
Serie didáctica sobre la importancia y los usos del Palmito en la Selva Misionera. Comprende láminas sobre diferentes temas para que los docentes puedan trabajarlos con los alumnos.
The palm Euterpe edulis is an important palm species for the extraction of palm heart, a highly profitable consumable product. Due to its importance, much research has been conducted around the ecology of this palm species. Nevertheless, information available on its reproductive ecology is quality-deficient and fragmented, resulting in misleading v...
In ecosystems with grassland-forest boundaries, tree plantations could be used to promote forest restoration. In the Humid Chaco region of central South America, fire is one of the main disturbances that shapes the landscape. As eucalypt plantations are flammable, the contribution they can make to forest restoration is questionable. We planted sapl...
The objective of this study was to evaluate the storage of carbon in the living aboveground biomass
of native and implanted forests, and to estimate the average carbon residence time both in the
biomass and in the wood products harvested from Pinus taeda plantations. There were significant
differences in the carbon storage between native forest and...
The Euterpe edulis Mart. (Arecaceae) occurs both in protected and logged areas of the Atlantic forest in Misiones, Argentina. This palm tree is harvested for its heart. To study the growth and estimate the age of E. edulis individuals, three one-hectare permanent plots were used: two of them located in the Iguazú National Park and the third, a priv...
The native vegetation within tree plantations increases the suitability for native biodiversity; however, the re-generation of this vegetation depends on the movement of seeds from the native forest by vertebrates and wind. In the present study, we examined functional patterns of seed dispersal between the native forest and tree plantations with di...
Phenology is a key ecosystem process that reflects climate–vegetation functioning, and is an indicator of global environmental changes. Recently, it has been suggested that land-use change and timber extraction promote differences in forest phenology. We use remote-sensing data to describe regional leaf phenological patterns in combination with fie...
Disturbances such as selective logging in a forest may lead to a degradation process, where new species become dominant and replace the original vegetation. This is the case of the Semi-deciduous Atlantic Forest, where bamboos replace trees and palms, affecting the forest structure and dynamics. As bamboos show plant traits that contrast those of t...
The degradation and replacement of native ecosystems affects both their taxonomic and functional biodiversity. However, native species may find a gradient of habitat suitability in different land uses within a region. The aim of this study was to evaluate the effect of land use on the taxonomic and functional diversity of dung beetle assemblages in...
p>Los detritos, aunque a veces imperceptibles, son un componente esencial del bosque. Cumplen funciones ecológicas indispensables, como albergar innumerables especies, proveer protección al suelo, regular procesos de ciclado de nutrientes y ser importantes reservorios de carbono y agua. Si bien sabemos que las actividades humanas los alteran, no co...
p>La Reserva Natural Rincón de Santa María (RNR SM) fue creada con el objeto de compensar la pérdida de ambientes naturales ocasionada por el llenado del embalse al construir la Represa Yacyretá. Durante muchos años, las distintas actividades humanas dentro del área de la Reserva ocasionaron que las distintas comunidades vegetales originales cambia...
Necromass is a critical structural and functional component of forest ecosystems that represents an important and relatively long-lived aboveground forest carbon pool. In the Atlantic Forest of Northern Argentina, a large area of native forest has been replaced by commercial, non-native tree plantations. We hypothesized that total aboveground necro...
El objetivo de este proyecto fue evaluar la influencia de diferentes usos de la tierra en la riqueza y composición del ensamble de escarabajos estercoleros del bosque Atlántico del Alto Paraná. Durante el verano 2014 se realizaron muestreos de estercoleros utilizando trampas de caída cebadas. Se trabajó en diferentes ambientes: cultivos de yerba ma...
Physiological characteristics of saplings can be considered one of the most basic constraints on species distribution. The shade-tolerant arborescent palm Euterpe edulis Mart. is endemic to the Atlantic Forest of Argentina, Brazil and Paraguay. At a local scale, saplings of this species growing in native forests are absent in gaps. We tested the hy...
Many woody bamboo species are forest understory plants that become invasive after disturbance. They can grow rapidly forming a dense, nearly monospecific understory that inhibits tree regeneration. The principal aim of this study was to understand what functional traits of bamboos allow them to outcompete tree seedlings and saplings and become succ...
La radiación solar es el factor más importante que limita el crecimiento de las plantas en los bosques tropicales y subtropicales húmedos. En función de esto, las especies de árboles se clasificaron históricamente en dos grupos funcionales sobre la base de sus requerimientos de germinación, establecimiento y crecimiento. Mientras que las especies m...
In tropical and subtropical moist forests the most important factor limiting plant growth is solar radiation. On this basis, tree species had traditionally been classified into two functional groups based on their requirements for germination, establishment and growth. While shade-tolerant species germinate, grow and establish in places with low so...
Chusquea ramosissima is a native monocarpic bamboo species growing in subtropical forests of northeastern Argentina, which can dominate gaps and open forests in the region, particularly after human disturbance. This bamboo species started to flower in different areas of northeastern Argentina in 2001, with the flowering peak during 2002 and 2003 an...
We studied developmental and environmental constraints on leaf dynamics, morphology and physiology in the monopodial tropical palm of the Atlantic Forest biome, Euterpe edulis. Plastic responses to light environments in terms of photosynthesis, leaf size, leaf life span, patterns of biomass allocation and growth were analysed. Plants were grown dur...
This study examined how leaf and stem functional traits related to gas exchange and water balance scale with two potential proxies for tree hydraulic architecture: the leaf area:sapwood area ratio (A(L):A(S)) and wood density (rho(w)). We studied the upper crowns of individuals of 15 tropical forest tree species at two sites in Panama with contrast...
Frost resistance and subzero temperature effects on photosynthesis, survival and distribution were studied in Euterpe edulis, a tree palm species of the Atlantic Forest, near the southern limit of the species distribution. E. edulis grows under the forest canopy and is absent from forest stands located near bottom valleys. This palm species has bee...
Stomatal regulation of transpiration constrains leaf water potential (ΨL) within species-specific ranges that presumably avoid excessive tension and embolism in the stem xylem upstream. However, the hydraulic resistance of leaves can be highly variable over short time scales, uncoupling tension in the xylem of leaves from that in the stems to which...
Plasticity in hydraulic architecture of five dominant Atlantic forest species differing in light requirements and growth rates was evaluated in saplings grown at different irradiances to determine if hydraulic architecture changes in coordination with photosynthetic capacity. Saplings were grown in shade-houses at 10, 30, 45 and 65% of full solar i...
We assessed the effect of native bamboo and lianas on microclimate, tree regeneration and forest structure in a semi-deciduous Atlantic Forest subjected to selective timber extraction during the last century. We hypothetized that bamboo and liana cutting would increase incoming solar radiation in the understory promoting establishment and survival...
Determinants of liana abundance on several canopy tree species and the impact of liana abundance on host tree growth were studied in a subtropical Atlantic Forest in northeastern Argentina. Six permanent 1 ha plots were located in a native forest stand. In three of those plots all lianas were cut and allowed to decompose in situ, while the other th...
We experimentally determined whether the low density of antlion larvae found in ant-acacia clearings is due to high levels of ant predation or an inadequate substrate for pit-trap construction. Pit establishment was more affected by soil improvement than by the exclusion of ants, suggesting that soil condition is the main factor that affect antlion...
