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Papers by Maria Otávia Crepaldi
Biodiversity and Conservation, 2009
The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in t... more The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in the municipality of Santa Leopoldina (20°06 0 04 00 S 9 40°31 0 47 00 W), in Espírito Santo State, Brazil. We expected to encounter high levels of ethnobotanical knowledge in the community due to its distance from the principal local urban center and its localization in a region of high biodiversity. Field work was undertaken between August 2005 and August 2006, employing semi-structured interviews, participant observation, artifact-interviews, as well as the ''walk-in-the-forest'' technique in the company of a local specialist. Ten additional informants participated in the research (seven women and three men with ages between 42 and 84) who were identified using the ''snow-ball'' method. A total of 192 ethnospecies belonging to 188 distinct plant taxa were cited (with 59% being native to the Atlantic Forest biome) and were classified into the following use-categories: medicinal (52%), food (34%), construction (18%), technology (10%), ritualistic (5%), ornamental (5%), and fuelwoods (2%). The plants with the greatest Use-Values were Attalea humilis (1.3) and Polyandrococos caudescens (1.1). The Diversity Index of the community's ethnobotanical knowledge (5.12 nats) was found to be higher than seen in other ethnobotanical studies undertaken in the Atlantic Forest. Using a methodology for determining conservation priorities it was found that 17 of the 49 species analyzed should be examined more closely in studies that could help guarantee the continuity of their populations in the local forest fragment in light of their low density and intense utilization by the Retiro Quilombola community.
Organic agriculture in Brazil has grown considerably in the last twenty years, mainly due to the ... more Organic agriculture in Brazil has grown considerably in the last twenty years, mainly due to the creation of specific laws and regulations. This work spatially and temporally analyzed the growth in registrations of certified organic producers in the state of Bahia, between 2014 and 2020, considering data related to the identity territories (ITs) and to the nature of the certification process. Bibliographic consultations, data collection from the national register of organic producers and the elaboration of comparative maps based on the collected data were carried out. It was found that between 2015 and 2017 the annual average growth of newly registered producers was 43%. From 2018 to 2020, it fell to 4%, coinciding with a new political scenario, which is seen as a landmark in the scope of national agriculture, the end of federal departments responsible for agrarian development and the expansion and flexibilization of the pesticide market. The Litoral Sul and Baixo Sul ITs, in the south region, had the highest number of registered organic producers, with cocoa production. The ITs with the fewest registrations were the Bacia do Rio Grande, Velho Chico, Bacia do Rio Corrente and Bacia do Paramirim, in the extreme west, which is a region dominated by soybean and cotton farming. Organic producers certified by participatory assurance systems and social control organizations in direct sales represented 68% of the total registrations in 2018 and 2019. There is a need to strengthen the participatory assurance systems in environmental and territorial planning processes, and to improve the diagnosis and the availability of data on the areas of organic production in the state of Bahia. In addition, in most ITs in the state, there are gaps that generate a demand for actions of rural technical assistance and scientific research aimed at organic production.
Brazilian Geographical Journal Geosciences and Humanities Research Medium, Dec 8, 2012
This study was conducted in a fragment of Atlantic Forest managed by quilombolas in Santa Leopol... more This study was conducted in
a fragment of Atlantic Forest managed by quilombolas in Santa Leopoldina,
ES, to determine its floristic diversity and successional stage. The chosen area
is part of the “Center of Endemism of Vascular Plants of the Serra do Mar”,
the “Priority Areas for Flora Conservation” and is also operating area of the
“Ecological Corridors Project.” Between August 2005 and February 2006 an
inventory of 0.1 ha was conducted using 10 transects of 50 x 2 m, sampling
individuals with DBH ≥ 2.5 cm. We recorded 297 individuals belonging to 54
species and 28 families. The predominance of species and individuals in the
ecological group of the early secondary, the distributions of height and diameter,
basal area per hectare (29,77 m²) as well as the species with the highest
Importance Value (Zeyheria tuberculosa, Siparuna guianensis e Cedrela fissilis)
refer us to a secondary forest at an intermediary stage of natural regeneration.
The value of Shannon diversity index obtained in this study (H’ = 3.35) is average
compared to other studies in the Atlantic Forest, with high equability (J
= 0.84). Being a fragment very important for the quilombolas, mentioning how
useful more than half of the native trees found in the fragment, as the potential
for connectivity, studies and strategies for conservation and recovery of social
and biological diversity are essential.
The goal of this study was to test the preference of Dodonaea viscosa (L.) Jacq. by disturbed ar... more The goal of this study was to test the preference
of Dodonaea viscosa (L.) Jacq. by disturbed areas of
restinga in southern coast of the Espírito Santo as well as
if higher disturbance levels increase its abundance.
Populations of this species were analyzed in three
sections of shrubby vegetation with different histories of
man-made disturbance in the Parque Estadual Paulo
César Vinha. In each section were installed four transects
of 10 x 100 m subdivided into 10 contiguous quadrat
plots of 100 m². Inside these plots all individuals of D.
viscosa with height ≥ 20 cm were quantified. The
abundance was significantly higher in the section with a
history of severe disturbance and in plots closer to the
edge of Park, indicating the preference of D. viscosa by
disturbed areas and the positive relationship between
abundance and disturbance level.
The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in t... more The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in the municipality of Santa Leopoldina (20°06 0 04 00 S 9 40°31 0 47 00 W), in Espírito Santo State, Brazil. We expected to encounter high levels of ethnobotanical knowledge in the community due to its distance from the principal local urban center and its localization in a region of high biodiversity. Field work was undertaken between August 2005 and August 2006, employing semi-structured interviews, participant observation, artifact-interviews, as well as the ''walk-in-the-forest'' technique in the company of a local specialist. Ten additional informants participated in the research (seven women and three men with ages between 42 and 84) who were identified using the ''snow-ball'' method. A total of 192 ethnospecies belonging to 188 distinct plant taxa were cited (with 59% being native to the Atlantic Forest biome) and were classified into the following use-categories: medicinal (52%), food (34%), construction (18%), technology (10%), ritualistic (5%), ornamental (5%), and fuelwoods (2%). The plants with the greatest Use-Values were Attalea humilis (1.3) and Polyandrococos caudescens (1.1). The Diversity Index of the community's ethnobotanical knowledge (5.12 nats) was found to be higher than seen in other ethnobotanical studies undertaken in the Atlantic Forest. Using a methodology for determining conservation priorities it was found that 17 of the 49 species analyzed should be examined more closely in studies that could help guarantee the continuity of their populations in the local forest fragment in light of their low density and intense utilization by the Retiro Quilombola community.
Thesis Chapters by Maria Otávia Crepaldi
Biodiversity and Conservation, 2009
The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in t... more The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in the municipality of Santa Leopoldina (20°06 0 04 00 S 9 40°31 0 47 00 W), in Espírito Santo State, Brazil. We expected to encounter high levels of ethnobotanical knowledge in the community due to its distance from the principal local urban center and its localization in a region of high biodiversity. Field work was undertaken between August 2005 and August 2006, employing semi-structured interviews, participant observation, artifact-interviews, as well as the ''walk-in-the-forest'' technique in the company of a local specialist. Ten additional informants participated in the research (seven women and three men with ages between 42 and 84) who were identified using the ''snow-ball'' method. A total of 192 ethnospecies belonging to 188 distinct plant taxa were cited (with 59% being native to the Atlantic Forest biome) and were classified into the following use-categories: medicinal (52%), food (34%), construction (18%), technology (10%), ritualistic (5%), ornamental (5%), and fuelwoods (2%). The plants with the greatest Use-Values were Attalea humilis (1.3) and Polyandrococos caudescens (1.1). The Diversity Index of the community's ethnobotanical knowledge (5.12 nats) was found to be higher than seen in other ethnobotanical studies undertaken in the Atlantic Forest. Using a methodology for determining conservation priorities it was found that 17 of the 49 species analyzed should be examined more closely in studies that could help guarantee the continuity of their populations in the local forest fragment in light of their low density and intense utilization by the Retiro Quilombola community.
Organic agriculture in Brazil has grown considerably in the last twenty years, mainly due to the ... more Organic agriculture in Brazil has grown considerably in the last twenty years, mainly due to the creation of specific laws and regulations. This work spatially and temporally analyzed the growth in registrations of certified organic producers in the state of Bahia, between 2014 and 2020, considering data related to the identity territories (ITs) and to the nature of the certification process. Bibliographic consultations, data collection from the national register of organic producers and the elaboration of comparative maps based on the collected data were carried out. It was found that between 2015 and 2017 the annual average growth of newly registered producers was 43%. From 2018 to 2020, it fell to 4%, coinciding with a new political scenario, which is seen as a landmark in the scope of national agriculture, the end of federal departments responsible for agrarian development and the expansion and flexibilization of the pesticide market. The Litoral Sul and Baixo Sul ITs, in the south region, had the highest number of registered organic producers, with cocoa production. The ITs with the fewest registrations were the Bacia do Rio Grande, Velho Chico, Bacia do Rio Corrente and Bacia do Paramirim, in the extreme west, which is a region dominated by soybean and cotton farming. Organic producers certified by participatory assurance systems and social control organizations in direct sales represented 68% of the total registrations in 2018 and 2019. There is a need to strengthen the participatory assurance systems in environmental and territorial planning processes, and to improve the diagnosis and the availability of data on the areas of organic production in the state of Bahia. In addition, in most ITs in the state, there are gaps that generate a demand for actions of rural technical assistance and scientific research aimed at organic production.
Brazilian Geographical Journal Geosciences and Humanities Research Medium, Dec 8, 2012
This study was conducted in a fragment of Atlantic Forest managed by quilombolas in Santa Leopol... more This study was conducted in
a fragment of Atlantic Forest managed by quilombolas in Santa Leopoldina,
ES, to determine its floristic diversity and successional stage. The chosen area
is part of the “Center of Endemism of Vascular Plants of the Serra do Mar”,
the “Priority Areas for Flora Conservation” and is also operating area of the
“Ecological Corridors Project.” Between August 2005 and February 2006 an
inventory of 0.1 ha was conducted using 10 transects of 50 x 2 m, sampling
individuals with DBH ≥ 2.5 cm. We recorded 297 individuals belonging to 54
species and 28 families. The predominance of species and individuals in the
ecological group of the early secondary, the distributions of height and diameter,
basal area per hectare (29,77 m²) as well as the species with the highest
Importance Value (Zeyheria tuberculosa, Siparuna guianensis e Cedrela fissilis)
refer us to a secondary forest at an intermediary stage of natural regeneration.
The value of Shannon diversity index obtained in this study (H’ = 3.35) is average
compared to other studies in the Atlantic Forest, with high equability (J
= 0.84). Being a fragment very important for the quilombolas, mentioning how
useful more than half of the native trees found in the fragment, as the potential
for connectivity, studies and strategies for conservation and recovery of social
and biological diversity are essential.
The goal of this study was to test the preference of Dodonaea viscosa (L.) Jacq. by disturbed ar... more The goal of this study was to test the preference
of Dodonaea viscosa (L.) Jacq. by disturbed areas of
restinga in southern coast of the Espírito Santo as well as
if higher disturbance levels increase its abundance.
Populations of this species were analyzed in three
sections of shrubby vegetation with different histories of
man-made disturbance in the Parque Estadual Paulo
César Vinha. In each section were installed four transects
of 10 x 100 m subdivided into 10 contiguous quadrat
plots of 100 m². Inside these plots all individuals of D.
viscosa with height ≥ 20 cm were quantified. The
abundance was significantly higher in the section with a
history of severe disturbance and in plots closer to the
edge of Park, indicating the preference of D. viscosa by
disturbed areas and the positive relationship between
abundance and disturbance level.
The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in t... more The present work was undertaken in the Cachoeira do Retiro ''Quilombola'' community, located in the municipality of Santa Leopoldina (20°06 0 04 00 S 9 40°31 0 47 00 W), in Espírito Santo State, Brazil. We expected to encounter high levels of ethnobotanical knowledge in the community due to its distance from the principal local urban center and its localization in a region of high biodiversity. Field work was undertaken between August 2005 and August 2006, employing semi-structured interviews, participant observation, artifact-interviews, as well as the ''walk-in-the-forest'' technique in the company of a local specialist. Ten additional informants participated in the research (seven women and three men with ages between 42 and 84) who were identified using the ''snow-ball'' method. A total of 192 ethnospecies belonging to 188 distinct plant taxa were cited (with 59% being native to the Atlantic Forest biome) and were classified into the following use-categories: medicinal (52%), food (34%), construction (18%), technology (10%), ritualistic (5%), ornamental (5%), and fuelwoods (2%). The plants with the greatest Use-Values were Attalea humilis (1.3) and Polyandrococos caudescens (1.1). The Diversity Index of the community's ethnobotanical knowledge (5.12 nats) was found to be higher than seen in other ethnobotanical studies undertaken in the Atlantic Forest. Using a methodology for determining conservation priorities it was found that 17 of the 49 species analyzed should be examined more closely in studies that could help guarantee the continuity of their populations in the local forest fragment in light of their low density and intense utilization by the Retiro Quilombola community.