Lucio Malizia | Universidad Nacional de Jujuy (original) (raw)

Papers by Lucio Malizia

In this report 70 out of the 127 tree species evaluated were assessed as globally threatened base... more In this report 70 out of the 127 tree species evaluated were assessed as globally threatened based on the IUCN Red List of Categories and Criteria and a further 20 species classified as Near Threatened. Prior to this regional Red List report, 199 endemic tree species have been evaluated in national Red Listing initiatives. Including these national evaluations with the findings in this report, a total of 235 tree species have been identified as threatened in the tropical Andes.

In this assessment 70 species are recorded as globally threatened based on the IUCN Red List... more In this assessment 70 species are recorded as globally threatened based on the IUCN Red List of Categories and
Criteria out of 127 tree species evaluated. In addition 165 national endemic trees of the region have
previously been evaluated as globally threatened based on the same IUCN process. In total therefore 235 tree
species are currently considered to be threatened with extinction within the Andean montane forests.

Ecosistemas, 2012

Los Andes tropicales constituyen una región única con una alta diversidad de hábitats, producto d... more Los Andes tropicales constituyen una región única con una alta diversidad de hábitats, producto de complejos gradientes espaciales y ambientales. Los bosques montanos de esta región son considerados como una prioridad global de conservación, debido principalmente a su elevada riqueza biológica y de endemismos. Sin embargo su biodiversidad es de las menos conocidas de toda la región tropical, aunque se reconoce la amplia gama de servicios ambientales que prestan, incluyendo la regulación del clima regional y la captura y almacenamiento de carbono. Este artículo ofrece una perspectiva general del estado de conservación de los bosques montanos tropicales andinos y de los retos que esta implica. Asimismo, proporciona información sobre sus amenazas, identificando aquéllas que con mayor probabilidad sean responsables de aumentar el riesgo de extinción de especies. Se resalta la necesidad de disponer de más información sobre el estado de conservación de las especies para identificar las futuras prioridades de conservación en la región. La reciente iniciativa de la "Lista Roja y planeación para la conservación de especies de árboles montanos de los Andes Tropicales", formada por delegados de varios países de la región, constituirá una sólida base para el desarrollo y enfoque de políticas y respuestas de manejo dirigidas a la reducción de la deforestación y pérdida de especies en estos bosques, incluyendo acciones para promover la creación de áreas protegidas, restauración forestal y manejo forestal sostenible.

The Condor, 2001

... LUCIO R. MALIZIA2. ... A escala de parcela ( 7.5 ha), sólo la abundancia de flores en el soto... more ... LUCIO R. MALIZIA2. ... A escala de parcela ( 7.5 ha), sólo la abundancia de flores en el sotobosque y las capturas de nectarívoros se correlacionaron, pero sólo en ... and will be totally gone from Argentina within the next two decades at the present rate of deforestation (Prado 1995 ...

Ornitologia …, 2005

Parque Nacional Calilegua, Administración de Parques Nacionales, San Lorenzo s/n, (4514) Calilegu... more Parque Nacional Calilegua, Administración de Parques Nacionales, San Lorenzo s/n, (4514) Calilegua, Jujuy, Argentina.

Aragón, R.; Chacoff, N. P.; Monmary, A. C. 1998 Cita: Malizia, L. R.; Aragón, R.; Chacoff, N. P.;... more Aragón, R.; Chacoff, N. P.; Monmary, A. C. 1998 Cita: Malizia, L. R.; Aragón, R.; Chacoff, N. P.; Monmary, A. C. (1998) ¿Son las rutas una barrera para el desplazamiento de las aves? El caso de la Reserva Provincial La Florida (Tucumán, Argentina). Hornero 015 (01) : 010-016

Reservas de la Biosfera: un …, 2007

Fundación ProYungas, Comité Asesor RBYungas, administracion@proyungas.com.ar En Noviembre de 2002... more Fundación ProYungas, Comité Asesor RBYungas, administracion@proyungas.com.ar En Noviembre de 2002 se creó en el noroeste de Argentina la Reserva de la Biosfera de las Yungas (RBYungas) en el marco del Programa del Hombre y la Biosfera (MAB) de la UNESCO. La RBYungas cuenta con una superficie de aproximadamente 1.350.000 ha, entre los 300 m y 5000 m de altitud, siendo la más grande de Argentina y la única que incluye territorio de dos provincias (Jujuy y Salta). El objetivo de esta reserva es la implementación de acciones para lograr la conservación y el manejo sustentable de las selvas y bosques subtropicales de montaña (Yungas), un ecosistema crítico del noroeste de la Argentina que representa menos del 2% de la superficie continental del país pero que contendría hasta el 50% de su biodiversidad (Figura 1). La ecoregión de las Yungas presenta un alto

Premontane forest in northern Argentina and southern Bolivia represents a conservation priority d... more Premontane forest in northern Argentina and southern Bolivia represents a conservation priority due to its biological values, role of connectivity among different forest types, and precious timber resources. Premontane forest distribution has fluctuated in correspondence to habitat use and changes in climatic conditions. The objective of this study was to determine current and future distributions of premontane forest and of six distinctive tree species in response to climate change, and to relate distribution changes to the current system of protected areas. Using the Maxent program, we developed species distribution models at the community and species levels. We used future climate scenarios available at WorldClim, in its original version and calibrated with local data. Future models determined a retraction of premontane forest of about 40% and a general tendency of this environment to migrate toward higher altitudes. Future distribution of individual species showed a similar response although concentrated at some particular areas, suggesting a shift in tree species composition of premontane forest in the future. The Yungas Biosphere Reserve represents a stable protection area for premontane forest.

PLOS ONE, 2015

General patterns of forest dynamics and productivity in the Andes Mountains are poorly characteri... more General patterns of forest dynamics and productivity in the Andes Mountains are poorly characterized. Here we present the first large-scale study of Andean forest dynamics using a set of 63 permanent forest plots assembled over the past two decades. In the North-Central Andes tree turnover (mortality and recruitment) and tree growth declined with increasing elevation and decreasing temperature. In addition, basal area increased in Lower Montane Moist Forests but did not change in Higher Montane Humid Forests. However, at higher elevations the lack of net basal area change and excess of mortality over recruitment suggests negative environmental impacts. In North-Western Argentina, forest dynamics appear to be influenced by land use history in addition to environmental variation. Taken together, our results indicate that combinations of abiotic and biotic factors that vary across elevation gradients are important determinants of tree turnover and productivity in the Andes. More extensive and longer-term monitoring and analyses of forest dynamics in permanent plots will be necessary to understand how demographic processes and woody biomass are responding to changing environmental conditions along elevation gradients through this century.

La designación de las entidades geográficas y la presentación del material en este libro no impli... more La designación de las entidades geográficas y la presentación del material en este libro no implican la expresión de ninguna opinión por parte de la UICN o de la Comisión Europea respecto a la condición jurídica de ningún país, territorio o área, o de sus autoridades, o referente a la delimitación de sus fronteras y límites.

Journal of Tropical Ecology, 2012

We identified and quantified regional and local environmental factors and spatial variation assoc... more We identified and quantified regional and local environmental factors and spatial variation associated with tree-species composition across a 2000-m altitudinal gradient of Andean forest in north-western Argentina. A network of 47 1-ha plots was established along the altitudinal gradient within an area of about 25 000 km 2 ; all trees ≥ 10 cm dbh were identified and measured. Constrained ordinations and variance-partitioning analyses were performed to investigate the determinants of tree-species distribution at the regional scale, across and within forest types (i.e. dry and cloud forests). We marked and measured a total of 22 240 trees belonging to 160 species. Significant environmental factors and spatial location combined accounted for 35% of total variation explained. A high proportion of variation was explained by climatic factors that were spatially structured; after removing the spatial effect, climate explained more variation in species composition across the complete gradient than did local factors. Relative importance of regional and local factors varied with geographic extent. Local factors explained more variation in tree-species composition at the within-forest scale than at the scale of the complete gradient. Our findings support the conceptual model of multi-scale controls on vegetation distribution, where local community composition and abundance result from processes at both regional and local scales.

Journal of Heredity, 2012

Phylogeography in combination with ecological niche modeling (ENM) is a robust tool to analyze hy... more Phylogeography in combination with ecological niche modeling (ENM) is a robust tool to analyze hypotheses on range shifts under changing climates particularly of taxa and areas with scant fossil records. We combined phylogeographic analysis and ENM techniques to study the effects of alternate cold and warm (i.e., glacial and interglacial) periods on the subtropical montane cold-tolerant conifer Podocarpus parlatorei from Yungas forests of the central Andes. Twenty-one populations, comprising 208 individuals, were analyzed by sequences of the trnL -trnF cpDNA region, and 78 sites were included in the ENM. Eight haplotypes were detected, most of which were widespread while 3 of them were exclusive of latitudinally marginal areas. Haplotype diversity was mostly even throughout the latitudinal range. Two distribution models based on 8 bioclimatic variables indicate a rather continuous distribution during cooling, while under warming remained within stable, yet increasingly fragmented, areas. Although no major range shifts are expected with warming, long-lasting persistence of cold-hardy taxa inhabiting subtropical mountains may include in situ and ex situ conservation actions particularly toward southern (colder) areas.

Environment, Development and Sustainability, 2010

The purpose of this paper is to discuss a methodology for the implementation of a participative p... more The purpose of this paper is to discuss a methodology for the implementation of a participative plan for forest use and management in a rural community. We present an experience carried out in an aboriginal community located in the ''Yungas biosphere reserve'' in Northern Argentina. We developed a methodology to work with the community to assess the quality of the forest resources and to find out the causes of degradation. We worked at three levels: the community council, the community, and the school. The community has a very short-term vision. The setup, the feasibility, and the implementation of the plan is highly dependent on the willingness of the community to participate. It is so far the first attempt, in Yungas region, to develop a multi-level methodology to work with local communities to implement a forest-management plan. Findings and recommendations could be useful for others who would like to work in similar contexts.

Ecology and Society, 2012

Forest Landscape Restoration (FLR) involves the ecological restoration of degraded forest landsca... more Forest Landscape Restoration (FLR) involves the ecological restoration of degraded forest landscapes, with the aim of benefiting both biodiversity and human well-being. We first identify four fundamental principles of FLR, based on previous definitions. We then critically evaluate the application of these principles in practice, based on the experience gained during an international, collaborative research project conducted in six dry forest landscapes of Latin America. Research highlighted the potential for FLR; tree species of high socioeconomic value were identified in all study areas, and strong dependence of local communities on forest resources was widely encountered, particularly for fuelwood. We demonstrated that FLR can be achieved through both passive and active restoration approaches, and can be cost-effective if the increased provision of ecosystem services is taken into account. These results therefore highlight the potential for FLR, and the positive contribution that it could make to sustainable development. However, we also encountered a number of challenges to FLR implementation, including the difficulty of achieving strong engagement in FLR activities among local stakeholders, lack of capacity for community-led initiatives, and the lack of an appropriate institutional and regulatory environment to support restoration activities. Successful implementation of FLR will require new collaborative alliances among stakeholders, empowerment and capacity building of local communities to enable them to fully engage with restoration activities, and an enabling public policy context to enable local people to be active participants in the decision making process. Ecology and Society 17(1): 21