Navegando por Autor "SALM, Rodolfo Aureliano"

Agora exibindo 1 - 3 de 3

Acesso aberto (Open Access)
Abundância e diversidade de palmeiras no Distrito Florestal Sustentável da rodovia BR-163, Pará, Brasil
(2011-09) SALM, Rodolfo Aureliano; JARDIM, Mário Augusto Gonçalves; ALBERNAZ, Ana Luisa Kerti Mangabeira
The abundance and diversity of palm species, as well as its relationship with forest structure were investigated in two study areas in the Sustainable Forest District of the BR-163 road. As such, forty parcels of 0.04 ha (20 × 20 m) were established in a pristine forest in the Amazonia National Park, and another forty parcels in a area submitted to timber logging in the Tapajos National Forest. In each parcel, all the trees with DBH ≥ 10 cm were measured and the adult palms were identified and counted. We verified that although the exploited forest of the Tapajos National Forest is structurally more open than the forest in the national park, it still has a quantity and diversity of palms inferior to the national park, probably due to the dispersal limitation of palms and the relatively recent logging activities. We concluded that exploitation potential of palms in native forests of the region is extremely limited by the natural scarcity of palms in native forests of economic potential, but could be amplified with the deliberate planting of useful species, with benefits for the natural dynamics of the forest.
Acesso aberto (Open Access)
Palm community transitions along a topographic gradient from floodplain to terra firme in the eastern Amazon
(Instituto Nacional de Pesquisas da Amazônia, 2015-03) SALM, Rodolfo Aureliano; PRATES, Anderson Sousa; SIMÕES, Nadson Ressyé; FEDER, Lisa
Palms show clear niche segregation patterns along topographic gradients in tropical forests, with some species associated to terra firme and others to seasonally flooded areas. The aim of this study was to quantitatively describe the fine-scale spatial variation within a palm community, tracking the changes in species' abundance along environmental gradients associated with a perennial stream the eastern Amazon. The study of palm communities was based on 60 forest plots in which all adult palms were counted. We found a total of 566 palms in a community containing 11 species. Furthermore, we found a significant separation in the palm community between seasonally-flooded and terra firme forests. We found a gradient with various densities of the three most abundant palm species within the first 100 m away from the flooded area. Other species were located exclusively in the terra firme forest. The abundance of the six most common species were distributed in relation to humidity gradients from floodplains to terra firme, with palm distribution from the most flood-tolerant to the least flood-tolerant palm species as follows: Euterpe oleracea, Attalea phalerata and Socratea exorrhiza (species with floodplain affinity), Astrocaryum gynacanthum, Astrocaryum aculeatum, Attalea maripa (species with terra firme affinity).
Acesso aberto (Open Access)
Planting coconuts in Indian villages: ethnoecological aspects and evaluation of a "sustainable development" project
(2010-03) SALM, Rodolfo Aureliano; FEDER, Lisa; JALLES FILHO, Euphly; JARDIM, Mário Augusto Gonçalves
Although scientists and policy makers embrace the general concept "sustainable development", there are few who agree on how to carry out sustainable development in specific situations. As such, sustainable development projects among ethnoscientists are widely critiqued as to how well they are inter-culturally formulated. Here we report on a controversial case of planting coconuts in Kayapó Indian villages of southern Pará, Brazil and offer our own self-critique. We began under the premise that reforestation and Kayapó general health/nutrition go hand in hand. Therefore, the flourishing of coconut culture will contribute to forest conservation in the long run, in itself, and simultaneously, maintain good nutrition for the Kayapó people who protect the forest from the threat of non-sustainable practices. We take an ethnoecological approach in discovering how Kayapó behavior affects the growth and flourishing of coconut culture when fostered with external supply. We present the results of two field trips to the Kayapó indigenous territory, where we found socio-ecological factors relevant to the success of our project supporting the culture of coconuts in indigenous villages. First, in November 2007, we visited Kikretum, Moikarakô and Aukre villages (among 10 villages which received coconut seedlings from our support program) to deliver a second shipment of coconut seedlings (the first shipment to these villages took place in April 2006) and quantitatively described one aspect of coconut seed-disperser's (the Kayapó's) behavior. We looked specifically at how the pre-existing coconuts palms were distributed among the Indian families, how they distributed last year's shipment, and how that shipment survived due to ethnoecological factors. Second, in July 2008 we visited Kokraimoro and Pykararankre villages and estimated the position of the previously existing and newly planted coconut palms in relation to other cultivated trees by making use of censuses departing from the village center to their outside limits. In the three Indian villages we visited in 2007, virtually all pre-existing coconut trees belonged to a select few families, and the coconut fruit distribution was, in most cases, highly concentrated among these family members. However, assuming that all the coconut saplings that survived the first year will reach maturity (from the first shipment in April 2006), they represent a remarkable increase in the projected number of adult coconut palms in the three visited villages (48, 195 and 101% in Kikretum, Moikarakô and Aukre, respectively), and a substantial reduction in the inequality in access to coconuts. In the 2008 field trip, we found that the Indians usually plant coconuts very close to their houses where competition with other cultivated trees may hinder the palms development.