Instituto Florestal IF
Instituto Florestal IF
Petri L.,Federal University of São Carlos |
do Prado B.H.S.,Estacao Ecologica de Angatuba |
Antunes A.Z.,Instituto Florestal IF |
de Oliveira B.C.,Federal University of São Carlos
Biota Neotropica | Year: 2013
The King Vulture Sarcoramphus papa (Linnaeus, 1758) is declining globally and it is listed as threatened with extinction in state of São Paulo, southeastern Brazil. Despite a recent increase in observations of this species, nesting records are scarce in the state. We report a nesting attempt on an observation tower at Estação Ecológica de Angatuba, southwestern state of São Paulo.
de Lima I.L.,Instituto Florestal IF |
Longui E.L.,Instituto Florestal IF |
Freitas M.L.M.,Instituto Florestal IF |
Zanatto A.C.S.,Instituto Florestal IF |
And 3 more authors.
Floresta e Ambiente | Year: 2014
In the present study, we aimed to characterize Eucalyptus resinifera wood through physical and mechanical assays and wood anatomy studies, as well as determine the relationships between the properties and anatomy of wood. We used samples collected from the area close to the bark of ten 26-year-old E. resinifera trees. We concluded that the specific gravity (Gb), compression (fc0), and shear parallel to grain (fv0) were ranked in strength classes C30, C40 and C60, respectively, and that volumetric shrinkage (VS) was ranked as high. A positive relationship between Gb and fv0 results from the higher specific gravity associated with higher tissue proportion, in turn, causing higher shear strength. Higher ray frequency increases shear strength, because rays act as reinforcing elements. A negative relationship between VS and vessel diameter occurs because vessel walls are highly resistant to collapse, and since larger lumens represent a higher proportion of empty spaces, less tissue is available for shrinkage.
de Lima R.A.F.,University of Sao Paulo |
Dittrich V.A.O.,Federal University of Juiz de fora |
de Souza V.C.,University of Sao Paulo |
Salino A.,Federal University of Minas Gerais |
And 2 more authors.
Biota Neotropica | Year: 2011
Located in the Serra de Paranapiacaba, South of São Paulo State, the Carlos Botelho State Park (PECB) shelters more than 37,000 ha of Atlantic Forest in one of the most important and large remnants of this Biome in Brazil. In the Park the Montane and Submontane rain forests are the predominant types of forests. Aiming to organize the available floristic information and to orient future surveys, this study presents the list of native vascular species of the PECB forests. Besides authors ́ personal collections, more than 3,900 records since 1967 were compiled. Coming from different sources of information, these records were checked for the presence of botanical synonyms and new combinations. A total of 1,143 species belonging to 528 genera and 140 families were listed (other 63 species were not included because they were non-native or of doubtful occurrence/determination). There was a great richness of Myrtaceae, Orchidaceae, Fabaceae, Asteraceae, Melastomataceae, Lauraceae, Rubiaceae and Bromeliaceae. Although high species richness was found, the richness of herbs, lianas and epiphytes are certainly underestimated and future surveys will add many species to the list presented here. In addition, more than 60 endangered species were found, mainly among the Myrtaceae, Lauraceae and Gesneriaceae families. Therefore, these results put the PECB among the most species-rich conservation units of São Paulo state with great relevance to national conservancy of plant diversity.
Durigan G.,Instituto Florestal IF |
Ivanauskas N.M.,Instituto Florestal IF |
Zakia M.J.B.,Praxis Socioambiental |
de Abreu R.C.R.,University of Sao Paulo
Natureza a Conservacao | Year: 2013
Biological invasions have contributed to biodiversity loss, ecosystem degradation, and impairment of ecosystem services worldwide, requiring actions towards their prevention and control. Since human and monetary resources are both limited in most countries, priorities must be settled in the real world of biological invasion prevention and control. To support the decision making process regarding plant species already introduced, we propose a classification key, based upon biogeographical and ecological attributes of the target plant population. The key shall be applied to a particular biogeographical region, based on the premise that a species never invades two distinct ecosystems in the same way. The key categorizes the species according to the potential threats offered to the native biodiversity and ecosystem services in that region. Management strategies are recommended on the basis of both the species performance as invader and its economic importance in the region. We highlight the importance of ecological studies to categorize a species by the threats it offers to a specific ecological region, in order to avoid the waste of efforts and resources with non-risky species. Eradication experiments are equally important to find ecologically, technically and economically viable solutions for the problems derived from biological invasions. © 2013 ABECO.
Araujo C.O.,Instituto Florestal IF |
de Almeida-Santos S.M.,Instituto Butantan
Biota Neotropica | Year: 2013
The anurans of São Paulo state are the best known in the country. However, there are still considerable sampling gaps in the state, especially within natural vegetation remnants of the hydrographic basins of the Paranapanema river. The purpose of this study was to obtain information on species composition, species richness and abundance of anurans recorded at Estação Ecológica de Angatuba, a remnant of Cerrado and Atlantic Forest in the hydrographic basin of the Upper Paranapanema river. The survey was conducted in two phases: in March and November 2007, and between October 2008 and March 2009, totaling 38 sampling days. Surveys were conducted using pitfall traps, incidental encounters and acoustic and visual searches. We recorded 31 anuran species, belonging to 16 genera and eight families (Bufonidae, Centrolenidae, Craugastoridae, Cycloramphidae, Hylidae, Leiuperidae, Leptodactylidae and Microhylidae). Of this total, 15 species were new records to the Angatuba and Guareí municipalities. This research is an important contribution for expanding the knowledge of the anuran diversity in the Cerrado and Atlantic Forest, two priority global hotspots for biodiversity conservation in Brazil.