Temporal variation in richness and composition of recruits in a diverse cnidarian assemblage of subtropical Brazil

Fernandez, Marina O.; Navarrete, Sergio A.; Marques, Antônio Carlos

doi:10.1016/j.jembe.2014.06.015

Cited by 14 publications

(7 citation statements)

References 52 publications

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“…The hypothesis of a greater temporal persistence of species at Pecém, the more tropical location, was also rejected, as persistence was greater at Ilhabela. Unfortunately, our study was too short in duration to properly evaluate interannual variability, but a two-year study at Ilhabela found a similar turnover of species between years, and patterns of species persistence held within both years encompassed by that study (Fernandez et al 2014).…”

Section: Spatial and Temporal Variation In Cnidarian Recruitmentmentioning

confidence: 87%

“…Temporal turnover of benthic cnidarians 495 panels on which a species was observed, for each period, out of the total number of replicate panels. This measure of local population abundance (occurrence on different panels) is therefore only a proxy for the number of individuals, but previous studies at Ilhabela show it correlates well with individual-based counts on plates (Fernandez et al 2014;Marina Fernandez 2014, personal observation). We then evaluated whether temporal persistence was associated with local abundance using bivariate scatterplots and determined whether the bivariate space formed by these variables was non-random using EcoSim v. 7.71 (Gotelli & Entsminger 2012).…”

Section: Statistical Analysesmentioning

confidence: 99%

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A comparison of temporal turnover of species from benthic cnidarian assemblages in tropical and subtropical harbours

Fernandez

Navarrete

Marques

2014

Marine Biology Research

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An important component of species diversity which has recently received significant attention is the change in species composition across space, or beta diversity. Temporal turnover of species is an equally important component of species diversity, which can by itself account for diversity patterns, but has received much less attention, especially in marine communities. Indeed, patterns of diversity of marine epifaunal assemblages may be better understood through the study of variability in richness and composition of recruits that colonize and survive long enough to start a population, but before species interactions mask the diversity initially settled. Here we document temporal patterns in richness and composition of recruits of a speciose benthic cnidarian assemblage, contrasting a tropical and a subtropical site to evaluate simple predictions about latitudinal diversity and richness stability. Recruitment variation was quantified during five three-month periods at two harbour areas (Pecém at 3°32′S and Ilhabela at 23°46′S) in Brazil separated by 20°latitude. Results show that: (1) species richness of benthic cnidarian assemblages was higher at the more tropical location, as expected from general patterns in marine species global distribution; (2) contrary to the expectation of a negative association between richness and species turnover, temporal turnover of species was similar at both sites, although more seasonal at the higher latitude site; and (3) species temporal persistence was greater at the subtropical site. Results are discussed in the context of how different environments and different regional richness may influence temporal patterns in species turnover and local richness, and how this may vary across latitudes.

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Section: Spatial and Temporal Variation In Cnidarian Recruitmentmentioning

confidence: 87%

Section: Statistical Analysesmentioning

confidence: 99%

A comparison of temporal turnover of species from benthic cnidarian assemblages in tropical and subtropical harbours

Fernandez

Navarrete

Marques

2014

Marine Biology Research

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Section: Discussionmentioning

confidence: 99%

“…Seasonality and population dynamics of hydroid species (viz., Gili & Hughes 1995;Bavestrello et al 2006;Rossi et al 2012;Fernandez et al 2014Fernandez et al , 2015 are influenced by marine abiotic and biotic factors that, ultimately, may constitute geographic barriers for some species although not influencing the distribution of others. Temporal variation of species richness in assemblages of benthic hydroids has already been described, and two types of species in Hydrozoa have been recognized: species recruiting to new surfaces year-round, and species doing so sporadically and without strong seasonality (Migotto et al 2001;Fernandez et al 2014). Reasons for these different scenarios are not clear, but one could hypothesize that wide distributions of hydroid species may be due to the many different strategies of asexual and sexual reproduction in complex life cycles including polyp and/or medusa/medusoid stages (Gili & Hughes 1995), and their great capacity to colonize different substrates (viz., Gili & Hughes 1995;Genzano & Rodriguez 1998;Migotto et al 2001;Genzano 2002;Oliveira & Marques 2007, 2011.…”

Section: Discussionmentioning

confidence: 99%

Areas of endemism in the Southwestern Atlantic Ocean based on the distribution of benthic hydroids (Cnidaria: Hydrozoa)

Miranda

Genzano

Marques

2015

Zootaxa

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Geographic distributions of 130 species of benthic hydroids were used to infer areas of endemism in the Southwestern Atlantic Ocean (SWAO, between 22°S and 55°S). Endemicity Analysis (EA) was carried out with the software NDM VNDM, using a 2° x 2° grid with different values of F (F = 0.5 and F = 1.0) for inferred presence. Hypothesized areas of endemism (16 with F = 0.5 and 13 with F = 1.0) formed three generalized patterns: (1) Tropical, (2) Subtropical, and (3) disjunctions along Tropical and Subtropical areas. Areas of endemism estimated here were compared with provinces, ecoregions and areas of endemism previously defined (but not based on algorithmic analysis) in the literature. Ecological and historical aspects that are potentially relevant for the SWAO realm were contrasted, related and discussed to areas of endemism. This is the first study to apply NDM VNDM to the marine realm and one of the few that focuses on the SWAO.

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“…Artificial substrates, such as recruitment panels, are widely used to monitor marine fouling communities, describe spatial and temporal patterns and predator effects to determine the composition of the fouling community, and detect the presence of non-native species (e.g. Nydam & Stachowicz, 2007;Broitman et al, 2008;Bumbeer & Rocha, 2012;Fernandez et al, 2014;García-Sanz et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Mollusks on Recruitment Panels Placed in an Offshore Harbor in Tropical Northeastern Brazil

Rabay

Cascon

2018

ACMAR

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Como o objetivo de contribuir para o conhecimento das comunidades marinhas incrustantes, o presente estudo analisou a variação temporal em comunidades de moluscos encontradas em placas de recrutamento trimestrais e anuais instaladas em uma região portuária no nordeste do Brasil. Um conjunto de 30 placas artificiais foi submerso entre os pilares do píer a uma profundidade aproximada de 6 m. A cada três meses, um subconjunto de 15 placas era removido para o exame da biota presente. O segundo subconjunto de 15 placas foi deixado submerso por um ano, e depois removido para análise. No mesmo dia em que as placas eram removidas, elas eram substituídas por novas placas. Doze remoções/reposições de placas foram realizadas de outubro de 2009 a novembro de 2012. Duas classes de Mollusca foram encontradas nos painéis de recrutamento: Gastropoda e Bivalvia. Trinta táxons foram encontrados nas placas trimestrais e 23 táxons nas placas anuais. Duas espécies nãonativas da costa brasileira foram encontradas: Isognomon bicolor e Eualetes tulipa. Nas placas trimestrais, a espécie mais comum e abundante foi a ostra Crassostrea brasiliana e a espécie mais abundante nas placas anuais foi o bivalve Musculus lateralis.

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Temporal variation in richness and composition of recruits in a diverse cnidarian assemblage of subtropical Brazil

Cited by 14 publications

References 52 publications

A comparison of temporal turnover of species from benthic cnidarian assemblages in tropical and subtropical harbours

A comparison of temporal turnover of species from benthic cnidarian assemblages in tropical and subtropical harbours

Areas of endemism in the Southwestern Atlantic Ocean based on the distribution of benthic hydroids (Cnidaria: Hydrozoa)

Mollusks on Recruitment Panels Placed in an Offshore Harbor in Tropical Northeastern Brazil

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