Mesozooplâncton Do Estuário Do Rio Dos Passos, Pernambuco, Brasil

Figueirêdo, Lucas Guedes Pereira; Fidelis, Valdylene Tavares Pessoa; Aquino, Eveline Pinheiro de; Neumann‐Leitão, Sigrid; Passavante, José Zanon de Oliveira

doi:10.5914/tropocean.v42i3.8033

Cited by 3 publications

(3 citation statements)

References 18 publications

(20 reference statements)

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“…Thus, the species that migrated to zone I during the rainy season may not have the ability to persist to the new environmental conditions of drought periods and, consequently, presented decreased survival rates, resulting in communities that only persist in habitats with particular environmental characteristics (Harrison et al 1992; Kawecki 2008). This pattern was not observed in the Passos estuary because this ecosystem is strongly influenced by saline incursions and has a very low inflow of continental freshwater drainage, maintaining high salinity throughout the estuary and consequently showing little variation in taxonomic richness between estuarine zones (Figueirêdo et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The Passos estuary is part of the estuarine complex of the Formoso River, along with the Ariquindá, Formoso and União rivers. This complex is strongly influenced by the sea because it is situated in a meso-tide estuarine complex (i.e., with tides ranging from 2 to 4 m), receiving a very low continental water supply (Figueirêdo et al 2014).…”

Section: Typical Tropical Estuariesmentioning

confidence: 99%

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Spatial scale drives diversity patterns of benthic macroinvertebrate communities in tropical estuaries

Medeiros

Heino

Santos

et al. 2020

Limnology & Oceanography

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Identifying the hierarchical spatial levels that show the greatest dissimilarities between communities and how these patterns are generated is essential to provide insights into the monitoring and protection of biodiversity. In this study, we additively partitioned diversity of macroinvertebrates into alpha, beta, and gamma diversity across multiple scales in typical and semi‐arid tropical estuaries. We also determined which components of the total beta diversity, in terms of species replacement or richness difference (presence‐absence data) and abundance difference (relative abundance data), had the greatest relative importance in structuring the composition of benthic macrofauna. In typical and semi‐arid tropical estuaries, a non‐random spatial pattern was observed in additive partitioning of diversity, with higher values of beta diversity obtained at the largest scales analyzed. When considering the presence‐absence data, in general there was no clear trend which components of beta diversity had greater relative importance in typical estuaries. In the semi‐arid tropical estuaries, the richness difference component showed greater relative importance in the rainy season, whereas the species replacement presented greater proportions in the dry season. When considering abundance data, in general the abundance difference component showed greater relative importance in typical and semi‐arid tropical estuaries in the two seasonal periods. Therefore, approaches based on the presence/absence and on the relative abundance of species provided complementary answers about the distribution patterns of benthic macroinvertebrate communities. We demonstrated that environmental filtering and dispersal limitation may affect the patterns of distribution of benthic macrofauna in estuaries located in regions with different climatic conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Typical Tropical Estuariesmentioning

confidence: 99%

Spatial scale drives diversity patterns of benthic macroinvertebrate communities in tropical estuaries

Medeiros

Heino

Santos

et al. 2020

Limnology & Oceanography

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“…They receive the freshwater discharge from important rivers in the region, which is why they are classified as positive estuaries. Among these estuaries, Passos is most influenced by tides and least influenced by freshwater discharge (Figueirêdo et al., 2014). According to the Köppen‐Geiger classification, the region's climate is hot/humid tropical, treated here as typical tropical, with wet winters, annual rainfall over 1500 mm, and temperatures ranging between 25 and 30°C (Alvares et al., 2013).…”

Section: Methodsmentioning

confidence: 99%

Taxonomic richness and its relationship to the functional diversity of polychaetes in tropical estuaries

Gomes,

Jovem‐Azevêdo,

de Melo

et al. 2024

Marine Ecology

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Biological diversity can be evaluated by the taxonomic and functional components. This study aimed to assess the relationship between taxonomic richness with the functional diversity components [functional richness (FRic), functional evenness (FEve) and functional divergence (FDiv)] and the functional trait dominance of polychaetes. In addition, we evaluated the environmental parameters that shape the functional structure in six tropical estuaries in north‐eastern Brazil. Three estuaries have a continuous environmental gradient (typical tropical), and the other three estuaries have no defined environmental gradient (semiarid tropical). We identified significant differences in the dominance of feeding strategy and habitat between estuaries, demonstrating that the functional space of the communities is not equally occupied. Also, the substrate particle size composition was correlated with the functional structure. FRic showed a positive relationship with taxonomic richness, regardless of the type of estuary. As taxonomic richness increases, the probability of different combinations of functional categories added to a community also increases. FEve and FDiv seem to be independent of taxonomic richness. Therefore, it is important to simultaneously evaluate diversity's taxonomic and functional components, considering the complementarity of the information provided by these diversity measures.

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rural and urban community perceptions of ecosystem goods and services in the semi-arid reservoirs landscape

Osório de Sousa,

Barbosa de Melo,

Marques Rocha Ferreira

et al. 2024

Ethnobio Conserv

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Ecosystem goods and services (EGS) are the contributions that ecosystems provide to human well-being. The reservoir landscape, an artificial ecosystem, offers a wide range of ecological and socioeconomic functions for local populations, such as potable water, irrigation, and plants for food purposes. This study aimed to assess the perception of EGS provided by the reservoir landscapes of rural and urban populations. Research was conducted with residents around reservoirs in the Paraiba Basin of Brazil, specifically in the cities of Camalaú and Boqueirão. Socioeconomic information and population perceptions were obtained using semi-structured forms and participatory mapping, respectively. Based on analyses using PERMANOVA and Mann-Whitney statistical tests, it was found that rural people and men perceived and cited a higher number of EGS. Responses varied with different education levels (Illiterate, Primary School Incomplete, Primary School Complete, High School Incomplete, High School Complete, and University Degree Complete), with provisioning services being more easily perceived and mentioned by the interviewees. People in direct contact with the natural environment were more likely to perceive EGS than those without such contact. However, the importance of EGS was recognised by both rural and urban populations, as these services are essential for their well-being. Perceptions of riverside populations are important for conservation efforts because they provide valuable information about ecosystems based on their experiences within these ecological systems.

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Mesozooplâncton Do Estuário Do Rio Dos Passos, Pernambuco, Brasil

Cited by 3 publications

References 18 publications

Spatial scale drives diversity patterns of benthic macroinvertebrate communities in tropical estuaries

Spatial scale drives diversity patterns of benthic macroinvertebrate communities in tropical estuaries

Taxonomic richness and its relationship to the functional diversity of polychaetes in tropical estuaries

rural and urban community perceptions of ecosystem goods and services in the semi-arid reservoirs landscape

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