Mineralogia de solos e ambientes de sedimentação em manguezais do Estado de São Paulo

Júnior, Souza; de, Valdomiro Severino

doi:10.11606/t.11.2006.tde-05042006-142238

Cited by 2 publications

(2 citation statements)

References 35 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other palaeochannels have been hypothesized for the Brazilian coast (e.g. Abreu & Calliari, 2005;Souza-J unior et al, 2007;Conti & Furtado, 2009;Weschenfelder et al, 2010), which suggests that extensive bays and lagoons were produced by the deepening of fluvial channels during low sea-level events. These areas could have provided the opportunity for connection among the southern populations of this study.…”

Section: Discussionmentioning

confidence: 97%

Opportunity and taxon pulse: the central influence of coastal geomorphology on genetic diversification and endemism of strict estuarine species

Baggio

Stoiev

Spach

et al. 2017

Journal of Biogeography

View full text Add to dashboard Cite

Aim Sea‐level changes and coastal geomorphology (extension of continental shelves) have affected the pattern of diversification of brackish/freshwater fish populations due to the confluence of basins/estuaries during low sea‐level periods (opportunity) and isolation during high sea‐level periods. It is hypothesized that populations from estuaries in extensive continental shelves, which have greater potential for confluence, should have more opportunities for gene exchange than those in narrow continental shelves. To test this, we assessed the distribution of the genetic diversity and the patterns of diversification of the estuarine silverside, Atherinella brasiliensis, from the Brazilian coast. Location Eight estuaries along the southern and north‐eastern portions of the Brazilian coast. Materials and methods Sequences of the mitochondrial control region (D‐loop) and the cytochrome B were used to assess the distribution of genetic diversity, and these mitochondrial fragments and two nuclear introns were used to assess the patterns of diversification of A. brasiliensis. The palaeochannels that were exposed along the Brazilian coast during the Last Glacial Maximum were reconstructed using bathymetry data and the GIS method. Results The populations of A. brasiliensis from the estuaries of the north‐eastern Brazilian coast (narrower and shallower continental shelf) showed higher levels of genetic differentiation and larger (more haplotypes) endemic lineages than the populations in the southern coast (broader and deeper continental shelf). Furthermore, south coast lineages showed more evidence of genetic exchange among populations, which have resulted in a reticulated relationship between lineages and estuaries. The reconstruction of palaeochannels revealed more connections among southern than north‐eastern basins. Main conclusions Our results support the hypothesis that continental shelf extension and sea‐level changes have influenced the diversification of A. brasiliensis. By extension, they also support the hypothesis of diversification by taxon pulse, which makes predictions based on the opportunities for expansion during periods of low sea level and the width of the continental shelf. We suggest this as a model for the genetic diversification and distribution of estuarine species along the Brazilian coast and other regions of the world.

show abstract

Section: Discussionmentioning

confidence: 97%

Opportunity and taxon pulse: the central influence of coastal geomorphology on genetic diversification and endemism of strict estuarine species

Baggio

Stoiev

Spach

et al. 2017

Journal of Biogeography

View full text Add to dashboard Cite

show abstract

“…O último máximo glacial ocorrido há 17.000 A.P (SUGUIO E MARTIN, 1978), segundo Souza-Júnior (2006), fez com que a drenagem continental, no seu processo de evolução gerado pelo recuo marinho, ocasionasse um aprofundamento dos canais fluviais. Após esse evento, por ocasião da transgressão Santos (5.100 A.P), o mar transgrediu novamente em direção ao continente, penetrando através dos canais formados pela regressão anterior.…”

Section: Tabela 41: Eventos Cenozóicos E Feições Associadasunclassified

Análise cronológica e pedológica de uma topossequência na planície fluvial do médio Mogi Guaçu

Celarino¹,

Ladeira²

View full text Add to dashboard Cite

vi vii "A sociedade se divide em dois grupos: O grupo dos que não comem e o grupo dos que não dormem -com receio da revolta dos que não comem". Josué de Castro, 1961. Geopolítica da fome. "Feita a revolução nas escolas, o povo a fará nas ruas." Florestan Fernandes, 1994. "Essa globalização não vai durar. Primeiro, ela não é a única possível, segundo, não vai durar como está, porque como está é monstruosa, perversa. Não vai durar, porque não tem finalidade." Milton Santos, 1996. viii ix AGRADECIMENTOSEste pequeno texto não é suficiente para contemplar todas as pessoas que, diretamente ou indiretamente, passaram pela minha vida e me ajudaram durante essa trajetória tão intensa que é o mestrado. Correndo o risco de cometer algumas injustiças, citarei algumas delas que foram decisivas na realização desta dissertação de mestrado:À Fundação de Amparo à pesquisa do Estado de São Paulo (FAPESP) pela bolsa concedida, ao

show abstract

Mineralogia de solos e ambientes de sedimentação em manguezais do Estado de São Paulo

Cited by 2 publications

References 35 publications

Opportunity and taxon pulse: the central influence of coastal geomorphology on genetic diversification and endemism of strict estuarine species

Opportunity and taxon pulse: the central influence of coastal geomorphology on genetic diversification and endemism of strict estuarine species

Análise cronológica e pedológica de uma topossequência na planície fluvial do médio Mogi Guaçu

Contact Info

Product

Resources

About