scholarly journals Changes in riparian forest cover from 1966 to 2017 along the Paraíba do Sul River between Jacareí and Queluz, São Paulo, Brazil

2020 ◽  
Vol 15 (7) ◽  
pp. 1
Author(s):  
João Marcos Tourinho ◽  
Celso De Souza Catelani ◽  
Maria Cecília Barbosa de Toledo
Keyword(s):  
Forest Cover ◽  
Riparian Forest ◽  
Sao Paulo ◽  
Rate Of Change ◽  
Forest Fragments ◽  
São Paulo ◽  
Buffer Strips ◽  
Public Authorities ◽  
Priority Areas ◽  
Paraíba Do Sul River

This study is based on the assumption that beginning with the passage of the Forest Code in 1965, which was revised by the law of 2012, the Permanent Preservation Area (PPA) of Paraíba do Sul River, PSR, is currently recuperated and preserved. In this context, the objective of this study was to: 1) conduct a temporal survey with respect to the rate of change of gains and losses of forest cover during the years 1966, 1977 and 2017; and, 2) do a spatial analysis in relation to this rate of change. This study was conducted along the stretch of the PSR between the municipalities of Jacareí and Queluz. Maps were used from the Brazilian Institute of Geography and Statistics - IBGE (1964-1966), the Geographic and Cartographic Institute of the state of São Paulo – IGC-SP (1978) (IGC), and high resolution images from the Pléiades satellite (2017). For the spatial and temporal analyses of the study area, geoprocessing techniques were used to quantify the area occupied by forest in two: 100 m buffer strips of the PPA, and in buffer strips of 1,000m, starting from each bank of the river. With respect to forest cover, measurements of its total and average size, proportion, gain or loss, and distance between nearby fragments were made. The results indicate that, from the decade of the 1960s to 2017, forest cover grew from 5.3% to 21%, and from 2% to 13% in the strips of 100 and 1,000 meters, respectively. With respect to areas registered from 1960, there was a reduction of 691 hectares, principally of large areas of remaining forest. However, a portion of this forest area was still present in 2017, but most of this forest was in the area 1,000 m from the riverbanks. These results will aid in the planning for establishment of priority areas for conservation of the riparian forest of the PSR. Through analysis of distances between forest fragments, empty spaces devoid of forest cover were identified, and in some cases these spaces were indicated as priority areas for recuperation. The results are discussed in the context of public policies and the periods of economic development that were drivers of landscape changes in the Paraíba do Sul Valley in the São Paulo region. In conclusion, the results demonstrate that the riparian forest of the PSR has slowly recuperated but is still far from being in compliance with current Brazilian legislation. This study will be an important aid in compliance activities conducted by public authorities in permanent preservation areas in the São Paulo PSR. An ample and refined survey of consolidated and fallow areas is suggested so that mitigation and compensation activities can be proposed for the PSR riparian forest that will promote the conservation of the quality of its water and biodiversity resources.

scholarly journals Macroinvertebrates in low-order streams in two fragments of Atlantic Forest in different states of conservation, in the State of São Paulo (Brazil)

2010 ◽  
Vol 70 (3 suppl) ◽  
pp. 899-909 ◽  
Author(s):  
MC. Paula ◽  
AA Fonseca-Gessner
Keyword(s):  
Riparian Forest ◽  
Sao Paulo ◽  
The State ◽  
Forest Fragments ◽  
São Paulo ◽  
Macroinvertebrate Communities ◽  
Benthic Organisms ◽  
Fluvial System ◽  
Lotic Environments ◽  
Low Order

The presence of a riparian forest is one of the main factors that act directly on the ecology of a fluvial system, and the relation of the forest and the lotic environments might have an important influence on the distribution of the macroinvertebrates. In this context, the benthic macroinvertebrate communities in four low-order streams in São Paulo (Brazil) were analysed, with the aim of assessing the state of recovery of the surrounding forest fragments. The benthic organisms were sampled in the winter, a period of low rainfall. Of the 6,331 specimens of macroinvertebrates collected, 124 taxa belonging to 48 families were identified. The results showed greater diversity in the Canchim Farm streams and greater abundance in the Lake Park streams. Cluster analysis showed that the stream Canchim distanced itself from the others, being considered reference.

scholarly journals Anurans of the Agudos and Jaú municipalities, state of São Paulo, Southeastern Brazil

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1645 ◽  
Author(s):  
Fábio Maffei ◽  
Bruno Tayar Marinho do Nascimento ◽  
Guilherme Marson Moya ◽  
Reginaldo José Donatelli
Keyword(s):  
Riparian Forest ◽  
Sao Paulo ◽  
Water Bodies ◽  
Southeastern Brazil ◽  
Forest Fragments ◽  
São Paulo ◽  
Amphibian Species ◽  
Paulo State ◽  
Midwest Region ◽  
Strong Seasonality

We present a list of amphibian species from the Agudos and Jaú municipalities, a Midwest region of São Paulo state, Brazil. The 26 species recorded exhibited a strong seasonality, with their reproductive periods concentrated in the rainiest months (October and December).  Most of the species (88%) are generalists and typically associated with open areas. Although none of the species to be associated exclusively forest environments, the occurrence of some species (12%) depends on the proximity of water bodies for environments with forest formation. Thus, the presence of riparian forest fragments near water bodies is essential for some populations, as these sites are refuge for some species.

scholarly journals Ticks infesting birds in Atlantic Forest fragments in Rio Claro, State of Sao Paulo, Brazil

2013 ◽  
Vol 22 (1) ◽  
pp. 6-12 ◽  
Author(s):  
Gustavo Seron Sanches ◽  
Thiago Fernandes Martins ◽  
Ileyne Tenório Lopes ◽  
Luís Flávio da Silva Costa ◽  
Pablo Henrique Nunes ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Tick Species ◽  
Native Species ◽  
Sao Paulo ◽  
Native Forest ◽  
Forest Fragments ◽  
São Paulo ◽  
Eucalyptus Tereticornis ◽  
New Host ◽  
New Host Records

In the present study, we report tick infestations on wild birds in plots of the Atlantic Forest reforested fragments with native species and plots reforested with Eucalyptus tereticornis in the municipality of Rio Claro, State of Sao Paulo, Brazil. A total of 256 birds were captured: 137 individuals of 33 species, in planted native forest; and 128 individuals of 37 species, in planted Eucalyptus tereticornis forest. Nymphs of two tick species were found on the birds: Amblyomma calcaratumand Amblyomma longirostre, the former was more abundant in the fragments reforested with Atlantic forest native species, and the latter in the fragment reforested with E. tereticornis. New host records were presented for A. calcaratum.

scholarly journals Hidrogeochemical comparative study of the Jaú and Jacaré-Guaçu River watersheds, São Paulo, Brazil

2000 ◽  
Vol 60 (4) ◽  
pp. 563-570 ◽  
Author(s):  
A. D. G. de SOUZA ◽  
J. G. TUNDISI
Keyword(s):  
Comparative Study ◽  
Spatial Variability ◽  
Riparian Forest ◽  
Ionic Concentration ◽  
Sao Paulo ◽  
Point Sources ◽  
São Paulo ◽  
Forest Protection ◽  
Water Composition ◽  
Oxygenated Water

The main subject of the present work was to carry out a hydrochemistry comparative study between two river basins in São Paulo State: the Jacaré-Guaçu Basin (21°37'-22°22'S and 47°43'-48°57'W) and the Jaú Basin (22°09'-22°28'S and 48°16'-48°47'W). Nine sampling points in the Jacaré-Guaçu River and eight in the Jaú River were established. The water sampling was performed once each two months from March/95 to September/95. The following variables were analyzed: temperature (°C), pH, conductivity (muScm--1), dissolved oxygen (mg/L) and ionic water composition. Comparatively the Jaú River showed higher spatial variability, less oxygenated water and higher mineralization, due to high pedological and geological substrate richness, point sources existence and less riparian forests. The Jacaré-Guaçu River showed less spatial variability, more oxygenated water with lower ionic concentration due to the lower geological and pedological watershed richness, absence of pollution from point sources and higher riparian forest protection.

Zooplankton community of sand pits of Paraiba do Sul River basin, São Paulo, Brazil

1998 ◽  
Vol 26 (4) ◽  
pp. 1524-1528
Author(s):  
Maria Aparecida Juliano de Carvalho ◽  
Suzana Sendacz
Keyword(s):  
River Basin ◽  
Zooplankton Community ◽  
Sao Paulo ◽  
São Paulo ◽  
Sand Pits ◽  
Paraíba Do Sul River

scholarly journals The vascular flora of Porto Ferreira State Park: an ecotonal area in São Paulo State, southeastern Brazil

2021 ◽  
Vol 21 (4) ◽  
Author(s):  
Gabriel Pavan Sabino ◽  
Vitor de Andrade Kamimura ◽  
Renan Borgiani ◽  
Rafael Konopczyk ◽  
Ernesto Pedro Dickfeldt ◽  
...  
Keyword(s):  
Riparian Forest ◽  
Vegetation Type ◽  
Sao Paulo ◽  
Southeastern Brazil ◽  
São Paulo ◽  
Vegetation Types ◽  
Conservation Units ◽  
Semideciduous Forest ◽  
Floristic Similarity ◽  
Vascular Flora

Abstract: The Porto Ferreira State Park (PFSP) is located in the State of São Paulo southeastern Brazil, in an intriguing transitional area between the Atlantic Forest and Cerrado - both hotspots of biodiversity - represented mainly by the cerradão (CER), and the seasonal semideciduous forest (SSF), with its alluvial variation vegetation type (riparian forest - RP). Ecotonal areas play an important role in providing ecological and phytogeographic knowledge regarding the flora and vegetation of this region. Despite various studies on the PFSP, knowledge of this region remains fragmented. In this study, we aim to conduct an updated checklist of the PFSP vascular flora, including a compilation of all the studies conducted in this protected area, plus field work carried out by the authors from 2014 to 2017. In addition, given its ecotonal characteristics, we completed a floristic similarity analysis between the PFSP and other floristic surveys that examined the same vegetation types present in this study, to gain a better understanding of their phytogeographic relationships. Overall, 684 species, belonging to 387 genera and 107 families, were recorded. The SSF presented the richest vegetation type (478 species), followed by the CER (418) and the RP (231). The most diverse families were Fabaceae (64 species), Myrtaceae (41), Orchidaceae (39), Rubiaceae (37), Asteraceae (35), Bignoniaceae (26) and Malvaceae (20). Moreover, eight threatened species, at regional and national levels, were found. To date, 412 species have been added to the floristic list produced for the PFSP. The life forms with the highest number of species were trees (286 species), herbs (176) plus shrubs and subshrubs (123). Our research findings indicate floristic patterns with higher levels of similarity among species in geographical proximity, including those in ecotonal areas encompassing different vegetation types. These results rank the PFSP among some of the most species-rich conservation units with seasonal climates, and therefore is of great importance for plant conservation in the southeast of Brazil.

scholarly journals Ichthyofauna of the Una river in the Paraíba do Sul Paulista River Valley, Southeastern of Brazil

2018 ◽  
Vol 18 (4) ◽  
Author(s):  
Juliano Rodrigues Honorio ◽  
Itamar Alves Martins
Keyword(s):  
River Basin ◽  
New Records ◽  
Sao Paulo ◽  
The State ◽  
River Valley ◽  
São Paulo ◽  
Number Of Individuals ◽  
Fyke Nets ◽  
Paraíba Do Sul River

Abstract: This study focus on an inventory of the ichthyofauna of the Una river, a tributary of the Paraíba do Sul river, located in the region of Paraíba do Sul River Valley, in the State of São Paulo. Sampling was carried out in three sampling areas along the channel of the Una river between April 2016 and March 2017. For the collection of fish specimens, was used angling, fyke nets, cast nets, dragnets and hand nets. A total of 1.534 specimens were collected, which corresponds to five different orders, 14 families, 26 genera and thirty species. The study revealed that the most significant number of reported species are from the orders Siluriformes and Characiformes. The Characidae family was the most representative concerning the wealth of species and Astyanax aff. bimaculatus (two spot Astyanax | lambari-do-rabo-amarelo) was the species with the highest number of individuals captured. The freshwater ichthyofauna of the Una river is composed of eight species considered allochthonous and one exotic. Of the thirty species listed in this study, five are new records for the Paraíba do Sul river basin.

THE VEGETATION OF PRIORITY AREAS FOR CERRADO CONSERVATION IN SÃO PAULO STATE, BRAZIL

2003 ◽  
Vol 60 (2) ◽  
pp. 217-241 ◽  
Author(s):  
G. DURIGAN ◽  
M. F. DE SIQUEIRA ◽  
G. A. D. C. FRANCO ◽  
S. BRIDGEWATER ◽  
J. A. RATTER
Keyword(s):  
Deciduous Forest ◽  
Riparian Forest ◽  
Detrended Correspondence Analysis ◽  
Sensu Stricto ◽  
Sao Paulo ◽  
São Paulo ◽  
Vegetation Types ◽  
Widespread Species ◽  
Paulo State ◽  
São Paulo State

Natural cerrado vegetation in São Paulo State now covers less than 7% of its original area and exists only as isolated fragments. Eighty-six sites in these priority cerrado conservation areas were surveyed using a rapid assessment technique. A total of 554 species of vascular plants, belonging to 77 families, was recorded. The vegetation types encountered comprised: campo sujo, campo cerrado, cerrado sensu stricto, cerradão, wet campo, riparian forest, swamp forest, ecotone cerrado/forest and seasonal semi-deciduous forest. Two-Way Indicator Species Analysis (TWINSPAN), Detrended Correspondence Analysis (DCA) and Unweighted Pair-Groups Method using Arithmetic Averages (UPGMA) revealed a weak similarity pattern based on geography, but divided the sites into two main structural groups: (a) areas where more open forms of cerrado occur (cerrado sensu stricto, campo cerrado); (b) areas where only forest physiognomies occur (cerradão, ecotone cerradão/seasonal semi-deciduous forest, or riparian forest). The first group tends to be located in the east and the second in the west of São Paulo State. Cerradão was the most frequent vegetation type, observed in 70% of the sites. Cerrado sensu stricto was recorded in only 31% of the sites. Casearia sylvestris and Byrsonima intermedia were the most widespread species, recorded in 90% and 88% of the sites, respectively. Only 10% of the species were found in 50% or more of the sites, while 19% of species were recorded at a single site only. There was a considerable difference in species number between sites, from a minimum of 29 at Taubaté to a maximum of 185 in one of those at Campos Novos Paulista. As shown in other studies, species richness is directly correlated with diversity of vegetation types occurring at a site (beta diversity). As expected, the seven richest fragments contain ecotonal vegetation, which combines both forest and cerrado elements.

Helminth Parasites of Hypsiboas prasinus (Anura: Hylidae) from Two Atlantic Forest Fragments, São Paulo State, Brazil

2012 ◽  
Vol 98 (3) ◽  
pp. 560-564 ◽  
Author(s):  
Carla Bonetti Madelaire ◽  
Fernando Ribeiro Gomes ◽  
Reinaldo José da Silva
Keyword(s):  
Atlantic Forest ◽  
Sao Paulo ◽  
Forest Fragments ◽  
Helminth Parasites ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State
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