A review of the use of seabirds as indicators in fisheries and ecosystem management

Einoder, Luke D.

doi:10.1016/j.fishres.2008.09.024

Cited by 139 publications

(81 citation statements)

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“…Understanding the at-sea behaviour of pelagic seabirds is both difficult, because of their elusive lifestyles, and important, because of their vulnerability to changes in the marine environment and their status as indicators of ocean health [1]. Advances in miniature telemetry and data-logging systems continue to revolutionize the remote observation of long-distance movements in these and other elusive species [2][3][4][5][6][7], but such systems can be expensive as well as impactful (especially on smaller species), and the resulting data are often under-used.…”

Section: Introductionmentioning

confidence: 99%

Behavioural mapping of a pelagic seabird: combining multiple sensors and a hidden Markov model reveals the distribution of at-sea behaviour

Dean

Freeman

Kirk

et al. 2013

J. R. Soc. Interface.

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The use of miniature data loggers is rapidly increasing our understanding of the movements and habitat preferences of pelagic seabirds. However, objectively interpreting behavioural information from the large volumes of highly detailed data collected by such devices can be challenging. We combined three biologging technologies-global positioning system (GPS), saltwater immersion and time-depth recorders-to build a detailed picture of the at-sea behaviour of the Manx shearwater (Puffinus puffinus) during the breeding season. We used a hidden Markov model to explore discrete states within the combined GPS and immersion data, and found that behaviour could be organized into three principal activities representing (i) sustained direct flight, (ii) sitting on the sea surface, and (iii) foraging, comprising tortuous flight interspersed with periods of immersion. The additional logger data verified that the foraging activity corresponded well to the occurrence of diving. Applying this approach to a large tracking dataset revealed that birds from two different colonies foraged in local waters that were exclusive, but overlapped in one key area: the Irish Sea Front (ISF). We show that the allocation of time to each activity differed between colonies, with birds breeding furthest from the ISF spending the greatest proportion of time engaged in direct flight and the smallest proportion of time engaged in foraging activity. This type of analysis has considerable potential for application in future biologging studies and in other taxa.

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Section: Introductionmentioning

confidence: 99%

Behavioural mapping of a pelagic seabird: combining multiple sensors and a hidden Markov model reveals the distribution of at-sea behaviour

Dean

Freeman

Kirk

et al. 2013

J. R. Soc. Interface.

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“…As aves marinhas são conhecidas como predadoras de topo e indicadoras do funcionamento e integridade do ecossistema marinho, apontando alterações em diferentes níveis tróficos (Crawford e Altwegg, 2009;Einoder, 2009). São influenciadas pela dinâmica dos oceanos, consideradas indicadoras ambientais e úteis no monitoramento de flutuações climáticas, uma vez que estas alterações atuam diretamente sobre as condições do ambiente, excedendo a tolerância fisiológica das espécies e indiretamente na disponibilidade dos recursos alimentares e áreas para nidificação (Crawford e Altwegg, 2009;Einoder, 2009).…”

Section: Introductionunclassified

“…São influenciadas pela dinâmica dos oceanos, consideradas indicadoras ambientais e úteis no monitoramento de flutuações climáticas, uma vez que estas alterações atuam diretamente sobre as condições do ambiente, excedendo a tolerância fisiológica das espécies e indiretamente na disponibilidade dos recursos alimentares e áreas para nidificação (Crawford e Altwegg, 2009;Einoder, 2009).…”

Section: Introductionunclassified

Meteorological influence on a population of Sula leucogaster (Aves, Sulidae) at an Archipelago in the southern of Brazil

Melo

Ferreira²,

Campoe³

et al. 2017

Neotropical Biology and Conservation

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This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0), which permits reproduction, adaptation, and distribution provided the original author and source are credited. ResumoO Arquipélago de Moleques do Sul apresenta grande importância para aves marinhas na costa brasileira, sendo um sítio reprodutivo de várias espécies. Para os atobás (Sula leucogaster), esse arquipélago representa o limite austral das colônias reprodutivas. Com o objetivo de verificar a influência de fatores ambientais no número de adultos e ninhegos de Sula leucogaster, foram coletados dados populacionais dessa espécie para comparação com dados climáticos da região. Sete modelos de regressão múltipla foram gerados para confrontar dados de sexo, idade, número de ninhos e indivíduos, bem como mortalidade de adultos e filhotes, com dados de temperatura, umidade relativa do ar, precipitação, pressão atmosférica reduzida ao nível do mar e velocidade do vento. Os resultados demonstraram que o número de adultos esteve relacionado de forma positiva com a velocidade média do vento e negativa com a pressão atmosférica. A pressão também influenciou negativamente o número de filhotes, enquanto o número de ninhos foi afetado negativamente pela velocidade média do vento. A mortalidade de adultos e filhotes não pôde ser explicada pelas variáveis analisadas. As correlações encontradas neste trabalho corroboram informações presentes em literatura para outros trabalhos com aves marinhas em ilhas.Palavras-chave: atobá, clima, ilhas. AbstractThe Moleques do Sul Archipelago has great importance for seabirds on the Brazilian coast as it houses breeding populations of various species. This archipelago represents the southern limit for the breeding colonies of the brown boobies (Sula leucogaster). In order to verify the influence of environmental factors on the abundance of adults and nestling of a Sula leucogaster population, we collected population data of this species in the archipelago between 2002 and 2007 for comparison to climatological data of the region. We generated seven multiple regression models to confront sex, age, number of nests and specimens, as well as adult and offspring mortality, to temperature, relative humidity, precipitation, atmospheric pressure on sea level and wind speed. Results showed that adults were positively related to average wind speed and negatively related to atmospheric pressure. Pressure also negatively influenced offspring, whereas number of nests was negatively affected by average wind speed. Adult and offspring mortality could not be explained by the variables. The correlations found in this study corroborate literature information for other researches on seabird in islands.

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“…Second, because many species are top predators, several contaminants often accumulate along the tropic chain, such species may be used as indicators of changes occurring at lower tropic level (Matsinos and Wolf, 2003;Burger and Eichhorst, 2005). And third, either the waterbirds themselves or their prey are exploited by humans (for example, hunting and fisheries), so that hunting bags of waterbirds may be indicative of productivity in nesting or wintering areas (Miller et al, 1998) or breeding parameters of birds may inform on fish stock (Enoder, 2009).…”

Section: Introductionmentioning

confidence: 99%

Species and breeding population of waterbirds on four islands in Kore Mosa in Persian Gulf in 2003 and 2012

Behrouzi-Rad¹

2014

J. Ecol. Nat. Environ.

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A review of the use of seabirds as indicators in fisheries and ecosystem management

Cited by 139 publications

References 100 publications

Behavioural mapping of a pelagic seabird: combining multiple sensors and a hidden Markov model reveals the distribution of at-sea behaviour

Behavioural mapping of a pelagic seabird: combining multiple sensors and a hidden Markov model reveals the distribution of at-sea behaviour

Meteorological influence on a population of Sula leucogaster (Aves, Sulidae) at an Archipelago in the southern of Brazil

Species and breeding population of waterbirds on four islands in Kore Mosa in Persian Gulf in 2003 and 2012

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