3 research outputs found
VARIAÇÃO BIOMÉTRICA DE DIÁSPOROS DE BURITI (Mauritia flexuosa L.f. – ARECACEAE) EM VEREDAS EM DIFERENTES ESTÁGIOS DE CONSERVAÇÃO
http://dx.doi.org/10.5902/1980509816583‘Veredas’ (palm swamps) are phytophysiognomies of the ‘Cerrado’ biome, where the palm tree Mauritia flexuosa Lf. - buriti predominates on the tree layer; this species is considered the key resource for many animals, that use it as shelter and source of food, and also by the man who uses their leaves and fruits as raw material and food. Although, they occur in environments protected by the environmental legislation, human actions have affected the populations of ‘buritis’, by means of the decrease of individuals caused by deforestation, siltation and drainage of these areas. The objective of this study was to evaluate the morphometric parameters of fruits and seeds of Mauritia flexuosa from six different ‘veredas’ at different conservation stages, located in the Environmental Protection Area of ‘Pandeiros’ River (north of Minas Gerais state). In total, 1,800 fruits and seeds were sampled, they were measured in length, width and thickness and, after that, they were weighed. To detect differences in morphometric measurements of fruits and seeds among the sampling areas, the analysis of variance was done. There were differences in morphometric measurements between the studied areas, in which 87.5% of the highest averages occurred in areas with the slightest anthropic interventions. This fact is possibly related to the impacts occurred, besides the genetic variations that may fall upon the individuals.http://dx.doi.org/10.5902/1980509816583As veredas são fitofisionomias do bioma Cerrado, onde, no estrato arbóreo, predomina a palmeira arbórea Mauritia flexuosa L.f. - buriti, espécie considerada recurso-chave para muitos animais, que a utilizam como moradia e fonte alimentar, e também pelo próprio homem, que usa suas folhas e frutos como matéria-prima e alimento. Apesar de ocorrerem em ambientes protegidos pela legislação ambiental, ações antrópicas nas veredas têm afetado as populações do buriti, por meio da diminuição do número de indivíduos ocasionada por desmatamento, assoreamento e drenagem dessas áreas. O objetivo desse trabalho foi avaliar a morfometria de frutos e sementes de buriti oriundos de seis veredas em diferentes estágios de conservação, situadas na Área de Proteção Ambiental do Rio Pandeiros (norte de Minas Gerais). Foram amostrados, no total, 1800 frutos e sementes, que foram mensurados em comprimento, largura, espessura e peso. Para detectar diferenças das medidas morfométricas dos frutos e das sementes entre as áreas de coleta foi feita a análise de variância. Foram observadas variações nas medidas morfométricas de frutos e sementes entre as áreas de estudo, sendo que 87,5% das maiores médias ocorreram em áreas com menores intervenções antrópicas. Esse fato, possivelmente, está relacionado aos impactos ocorridos nas veredas, além das variações genéticas que podem incidir sobre os indivíduos
VARIAÇÃO BIOMÉTRICA DE DIÁSPOROS DE BURITI (<i>Mauritia flexuosa</i> L.f. – ARECACEAE) EM VEREDAS EM DIFERENTES ESTÁGIOS DE CONSERVAÇÃO
‘Veredas’ (palm swamps) are phytophysiognomies of the ‘Cerrado’ biome, where the palm tree Mauritia flexuosa Lf. - buriti predominates on the tree layer; this species is considered the key resource for many animals, that use it as shelter and source of food, and also by the man who uses their leaves and fruits as raw material and food. Although, they occur in environments protected by the environmental legislation, human actions have affected the populations of ‘buritis’, by means of the decrease of individuals caused by deforestation, siltation and drainage of these areas. The objective of this study was to evaluate the morphometric parameters of fruits and seeds of Mauritia flexuosa from six different ‘veredas’ at different conservation stages, located in the Environmental Protection Area of ‘Pandeiros’ River (north of Minas Gerais state). In total, 1,800 fruits and seeds were sampled, they were measured in length, width and thickness and, after that, they were weighed. To detect differences in morphometric measurements of fruits and seeds among the sampling areas, the analysis of variance was done. There were differences in morphometric measurements between the studied areas, in which 87.5% of the highest averages occurred in areas with the slightest anthropic interventions. This fact is possibly related to the impacts occurred, besides the genetic variations that may fall upon the individuals
BIOMETRIC VARIATIONS OF DIASPORES OF BURITI ( Mauritia flexuosa L.f. \u2013 ARECACEAE) IN \u2018VEREDAS\u2019 AT DIFFERENT CONSERVATION STAGES
As veredas s\ue3o fitofisionomias do bioma Cerrado, onde, no estrato
arb\uf3reo, predomina a palmeira arb\uf3rea Mauritia flexuosa
L.f. - buriti, esp\ue9cie considerada recurso-chave para muitos
animais, que a utilizam como moradia e fonte alimentar, e tamb\ue9m
pelo pr\uf3prio homem, que usa suas folhas e frutos como
mat\ue9ria-prima e alimento. Apesar de ocorrerem em ambientes
protegidos pela legisla\ue7\ue3o ambiental, a\ue7\uf5es
antr\uf3picas nas veredas t\ueam afetado as popula\ue7\uf5es do
buriti, por meio da diminui\ue7\ue3o do n\ufamero de
indiv\uedduos ocasionada por desmatamento, assoreamento e drenagem
dessas \ue1reas. O objetivo desse trabalho foi avaliar a morfometria
de frutos e sementes de buriti oriundos de seis veredas em diferentes
est\ue1gios de conserva\ue7\ue3o, situadas na \uc1rea de
Prote\ue7\ue3o Ambiental do Rio Pandeiros (norte de Minas Gerais).
Foram amostrados, no total, 1800 frutos e sementes, que foram
mensurados em comprimento, largura, espessura e peso. Para detectar
diferen\ue7as das medidas morfom\ue9tricas dos frutos e das
sementes entre as \ue1reas de coleta foi feita a an\ue1lise de
vari\ue2ncia. Foram observadas varia\ue7\uf5es nas medidas
morfom\ue9tricas de frutos e sementes entre as \ue1reas de estudo,
sendo que 87,5% das maiores m\ue9dias ocorreram em \ue1reas com
menores interven\ue7\uf5es antr\uf3picas. Esse fato,
possivelmente, est\ue1 relacionado aos impactos ocorridos nas
veredas, al\ue9m das varia\ue7\uf5es gen\ue9ticas que podem
incidir sobre os indiv\uedduos.\u2018Veredas\u2019 (palm swamps) are phytophysiognomies of the
\u2018Cerrado\u2019 biome, where the palm tree Mauritia flexuosa
Lf. - buriti predominates on the tree layer; this species is considered
the key resource for many animals, that use it as shelter and source of
food, and also by the man who uses their leaves and fruits as raw
material and food. Although, they occur in environments protected by
the environmental legislation, human actions have affected the
populations of \u2018buritis\u2019, by means of the decrease of
individuals caused by deforestation, siltation and drainage of these
areas. The objective of this study was to evaluate the morphometric
parameters of fruits and seeds of Mauritia flexuosa from six different
\u2018veredas\u2019 at different conservation stages, located in the
Environmental Protection Area of \u2018Pandeiros\u2019 River (north
of Minas Gerais state). In total, 1,800 fruits and seeds were sampled,
they were measured in length, width and thickness and, after that, they
were weighed. To detect differences in morphometric measurements of
fruits and seeds among the sampling areas, the analysis of variance was
done. There were differences in morphometric measurements between the
studied areas, in which 87.5% of the highest averages occurred in areas
with the slightest anthropic interventions. This fact is possibly
related to the impacts occurred, besides the genetic variations that
may fall upon the individuals