COVID-related anthropause highlights the impact of marine traffic but not of tourism on breeding little penguins

Dupuis, Benjamin; Kato, Akiko; Joly, Nicolas; Saraux, Claire; Ropert-Coudert, Yan; Chiaradia, Andre; Chimienti, Marianna

doi:10.1016/j.biocon.2023.110323

Cited by 2 publications

(3 citation statements)

References 70 publications

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“…Island's little penguins, human activities at sea, such as maritime traffic, have negatively affected foraging efficiency (measured as mass gained at sea,Dupuis et al 2023). Our analysis reveals little penguins' habitat use variation in the Bass Strait across environmental conditions and breeding stages, emphasizing the vital role of SST and highly productive coastal areas in sustaining their foraging activities.Integrating climate change into Marine Protected Area (MPA) management is crucial(Ramírez et al 2017;Zentner et al 2023).…”

mentioning

confidence: 82%

“…Given the length of the study and the rapid developments in bio-logging technology within these ten years, data were collected using different loggers (Little Leonardo, Japan, TechnoSmart, Italy and WACU IPHC Strasbourg for accelerometer loggers; and Cat Track, and Technosmart for GPS loggers, and at varying sampling resolutions depending on logger manufacture, battery and storage capacity, animals' breeding stage and length of the foraging trips (Zimmer et al 2011;Sánchez et al 2018;Dupuis et al 2023). Loggers were set to record: i) GPS locations at an interval from 10 sec to 5 min, depending on logger type, season and breeding stage (Dupuis et al 2023), ii) underwater pressure (in millibars) or depth (in meter) at 1 Hz and iii) tri-axial acceleration at 25 or 50 Hz. As penguins do not forage at night, only GPS data between nautical dawn and dusk were analysed, generating diurnal "foraging segments".…”

Section: Penguin Tracking and Data Preparationmentioning

confidence: 99%

“…As penguins do not forage at night, only GPS data between nautical dawn and dusk were analysed, generating diurnal "foraging segments". GPS locations for each foraging segment were checked, filtered, and interpolated at 15 min intervals (Dupuis et al 2023). Step length was then calculated from interpolated foraging segments using the R package MomentuHMM (McClintock & Michelot 2018).…”

Section: Penguin Tracking and Data Preparationmentioning

confidence: 99%

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Decoding Ten Years of Little Penguin Foraging: Bio-Logging Reveals Foraging Patterns with Implications for Climate Change Mitigation and Marine Spatial Planning

Chimienti,

Chiaradia,

Dupuis

et al. 2023

Preprint

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1. Protected areas are a widely adopted resource management strategy for mitigating the consequences of global change and preserve functioning ecosystems. Long-term species monitoring programmes, aided by bio-logging technology, provide insights into the extent and spatial variation of areas occupied by wild animals and inform conservation and management. High-resolution GPS-acceleration data offer a more accurate understanding of animal behavior and area use, compared to location-based inference, emphasizing the significance of specific sites amid long-term climate change. 2. We based our case-study on the largest colony of little penguins (Eudyptula minor) located at Phillip Island. Based on a ten-year bio-logging dataset (247 individual tracks), we combine high-resolution bio-logging data from GPS-accelerometer loggers with proxies for resource availability (e.g. Sea Surface Tenperature, thermocline, water turbidity). Using machine learning techniques and Generalized Additive Mixed Models, we quantify the environmental factors determining spatio-temporal variability in foraging effort (defined as hunting time) across different breeding seasons and stages. 3. Little penguins increased their hunting time by reducing spatial displacement (shorter step length) and diving deeper, with a slower increase in hunting effort below 10 m depth. In relation to environmental conditions, penguins increased hunting effort in coastal areas with high turbid and productive waters and decreased effort with increasing Sea Surface Temperature. This gives insights into how these animals allocate effort differently according to shifting environmental conditions. 4. Our analysis offers crucial long-term insights into little penguin area usage in the Bass Strait at sufficient spatial and temporal resolution for management and conservation planning. The Bass Strait is facing intense climatic and anthripogenic pressures, and the findings here on intensity of area usage and strategy shifting according to environmental conditions, are of great relevance for the marine spatial planning currently under development along the coast. 5. Policy implications: High-resolution behavioral information obtained from bio-logging data using GPS-accelerometer tags provides understanding of how species shift strategies in response to environmental variability. This is vital to implement climate-adaptive conservation and management strategies. Given the growing availability of long-term accelerometer datasets within the ecological community, we recommend integrating such high-resolution information into conservation programs.

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confidence: 82%

Section: Penguin Tracking and Data Preparationmentioning

confidence: 99%

Section: Penguin Tracking and Data Preparationmentioning

confidence: 99%

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Decoding Ten Years of Little Penguin Foraging: Bio-Logging Reveals Foraging Patterns with Implications for Climate Change Mitigation and Marine Spatial Planning

Chimienti,

Chiaradia,

Dupuis

et al. 2023

Preprint

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How the COVID-19 pandemic signaled the demise of Antarctic exceptionalism

Liggett,

Frame,

Convey

et al. 2024

Sci. Adv.

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This paper explores how the COVID-19 pandemic affected science and tourism activities and their governance in the Antarctic and Southern Ocean. The pandemic reduced the ability of Antarctic Treaty Parties to make decisions on policy issues and placed a considerable burden on researchers. Tourism was effectively suspended during the 2020–2021 Antarctic season and heavily reduced in 2021–2022 but rebounded to record levels in 2022–2023. The pandemic stimulated reflection on practices to facilitate dialog, especially through online events. Opportunities arose to integrate innovations developed during the pandemic more permanently into Antarctic practices, in relation to open science, reducing operational greenhouse gas footprints and barriers of access to Antarctic research and facilitating data sharing. However, as well as the long-term impacts arising directly from the pandemic, an assemblage of major geopolitical drivers are also in play and, combined, these signal a considerable weakening of Antarctic exceptionalism in the early Anthropocene.

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COVID-related anthropause highlights the impact of marine traffic but not of tourism on breeding little penguins

Cited by 2 publications

References 70 publications

Decoding Ten Years of Little Penguin Foraging: Bio-Logging Reveals Foraging Patterns with Implications for Climate Change Mitigation and Marine Spatial Planning

Decoding Ten Years of Little Penguin Foraging: Bio-Logging Reveals Foraging Patterns with Implications for Climate Change Mitigation and Marine Spatial Planning

How the COVID-19 pandemic signaled the demise of Antarctic exceptionalism

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