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Campioni L, Dell'Omo G, Vizzini S, De Pascalis F, Badalamenti F, Massa B, Rubolini D, Cecere JG. Year-round variation in the isotopic niche of Scopoli's shearwater (Calonectris diomedea) breeding in contrasting sea regions of the Mediterranean Sea. MARINE ENVIRONMENTAL RESEARCH 2022; 178:105650. [PMID: 35644078 DOI: 10.1016/j.marenvres.2022.105650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 05/11/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Top marine predators are key components of marine food webs. Among them, long-distance migratory seabirds, which travel across different marine ecosystems over the year, may experience important year-round changes in terms of oceanographic conditions and availability of trophic resources. We tested whether this was the case in the Scopoli's shearwater (Calonectris diomedea), a trans-equatorial migrant and top predator, by sampling birds breeding in three environmentally different regions of the Mediterranean Sea. The analysis of positional data and stable isotopes (δ1³C and δ15N) of target feathers revealed that birds from the three regions were spatially segregated during the breeding period while they shared non-breeding areas in the Atlantic Ocean. Isotopic baseline levels of N and C (meso-zooplankton) were significantly different among marine regions during breeding. Such variation was reflected at the higher trophic levels of pelagic and demersal fish muscles as well as in shearwater feathers grown in the Mediterranean. δ15N- and δ13C-adjusted values of shearwaters were significantly different among populations suggesting that birds from different breeding areas relied on prey species from different trophic levels. Conversely, the non-breeding spatial and isotopic niches overlapped greatly among the three populations. Shearwater trophic niches during breeding were narrower and segregated compared to the non-breeding period, revealing a high plasticity in trophic resource use. Overall, this study highlights seasonal and region-specific use of trophic resources by Scopoli's shearwater, suggesting a broad trophic plasticity and possibly a high adaptability to environmental changes.
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Affiliation(s)
- Letizia Campioni
- MARE - Marine and Environmental Sciences Center, Ispa - Instituto Universitário, Rua Jardim Do Tabaco 34, 1149-041, Lisbon, Portugal.
| | | | - Salvatrice Vizzini
- Dipartimento di Scienze Della Terra e Del Mare, Università Degli Studi di Palermo, Via Archirafi 18, 90123, Palermo, Italy; Consorzio Nazionale Interuniversitario per le Scienze Del Mare, CoNISMa, Piazzale Flaminio 9, 00196, Roma, Italy
| | - Federico De Pascalis
- Dipartimento di Scienze e Politiche Ambientali, Università Degli Studi di Milano, Via Celoria 26 I, 20133, Milano, Italy
| | - Fabio Badalamenti
- Institute of Anthropic Impacts and Sustainability in Marine Environment (CNR-IAS), Via Lungomare Cristoforo Colombo 4521, 90149, Palermo, Italy
| | | | - Diego Rubolini
- Dipartimento di Scienze e Politiche Ambientali, Università Degli Studi di Milano, Via Celoria 26 I, 20133, Milano, Italy; Istituto di Ricerca Sulle Acque, IRSA-CNR, Via Del Mulino 19 I, 20861, Brugherio, (MB), Italy
| | - Jacopo G Cecere
- Area Avifauna Migratrice, Istituto Superiore per La Protezione e La Ricerca Ambientale (ISPRA), Ozzano Emilia, (BO), Italy
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Joo R, Picardi S, Boone ME, Clay TA, Patrick SC, Romero-Romero VS, Basille M. Recent trends in movement ecology of animals and human mobility. MOVEMENT ECOLOGY 2022; 10:26. [PMID: 35614458 PMCID: PMC9134608 DOI: 10.1186/s40462-022-00322-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Movement is fundamental to life, shaping population dynamics, biodiversity patterns, and ecosystem structure. In 2008, the movement ecology framework (MEF Nathan et al. in PNAS 105(49):19052-19059, 2008) introduced an integrative theory of organismal movement-linking internal state, motion capacity, and navigation capacity to external factors-which has been recognized as a milestone in the field. Since then, the study of movement experienced a technological boom, which provided massive quantities of tracking data of both animal and human movement globally and at ever finer spatio-temporal resolutions. In this work, we provide a quantitative assessment of the state of research within the MEF, focusing on animal movement, including humans and invertebrates, and excluding movement of plants and microorganisms. Using a text mining approach, we digitally scanned the contents of [Formula: see text] papers from 2009 to 2018 available online, identified tools and methods used, and assessed linkages between all components of the MEF. Over the past decade, the publication rate has increased considerably, along with major technological changes, such as an increased use of GPS devices and accelerometers and a majority of studies now using the R software environment for statistical computing. However, animal movement research still largely focuses on the effect of environmental factors on movement, with motion and navigation continuing to receive little attention. A search of topics based on words featured in abstracts revealed a clustering of papers among marine and terrestrial realms, as well as applications and methods across taxa. We discuss the potential for technological and methodological advances in the field to lead to more integrated and interdisciplinary research and an increased exploration of key movement processes such as navigation, as well as the evolutionary, physiological, and life-history consequences of movement.
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Affiliation(s)
- Rocío Joo
- Department of Wildlife Ecology and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL USA
- Global Fishing Watch, Washington DC, USA
| | - Simona Picardi
- Department of Wildlife Ecology and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL USA
- Jack H. Berryman Institute and Department of Wildland Resources, S.J. & Jessie E. Quinney College of Natural Resources, Utah State University, Logan, UT USA
| | - Matthew E. Boone
- Department of Wildlife Ecology and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL USA
| | - Thomas A. Clay
- School of Environmental Sciences, University of Liverpool, Liverpool, UK
- Institute of Marine Sciences, University of California Santa Cruz, Santa Cruz, CA USA
| | | | - Vilma S. Romero-Romero
- Systems Engineering, Faculty of Engineering and Architecture, University of Lima, Lima, Peru
| | - Mathieu Basille
- Department of Wildlife Ecology and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Fort Lauderdale, FL USA
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Carneiro APB, Dias MP, Oppel S, Pearmain EJ, Clark BL, Wood AG, Clavelle T, Phillips RA. Integrating immersion with
GPS
data improves behavioural classification for wandering albatrosses and shows scavenging behind fishing vessels mirrors natural foraging. Anim Conserv 2022. [DOI: 10.1111/acv.12768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - M P Dias
- BirdLife International Cambridge UK
- Centre for Ecology, Evolution and Environmental Changes, cE3c & Department of Animal Biology, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - S Oppel
- Royal Society for the Protection of Birds The David Attenborough Building Cambridge UK
| | | | | | - A G Wood
- British Antarctic Survey Natural Environment Research Council Cambridge UK
| | - T Clavelle
- Global Fishing Watch Washington District of Columbia USA
| | - R A Phillips
- British Antarctic Survey Natural Environment Research Council Cambridge UK
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Colominas-Ciuró R, Cianchetti-Benedetti M, Michel L, Dell'Omo G, Quillfeldt P. Foraging strategies and physiological status of a marine top predator differ during breeding stages. Comp Biochem Physiol A Mol Integr Physiol 2021; 263:111094. [PMID: 34653609 DOI: 10.1016/j.cbpa.2021.111094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022]
Abstract
Habitat characteristics determine the presence and distribution of trophic resources shaping seabirds' behavioural responses which may result in physiological consequences. Such physiological consequences in relation to foraging strategies of different life-history stages have been little studied in the wild. Thus, we aim to assess differences in oxidative status, condition (fat stores, i.e. triglyceride levels, TRI), stress (Heterophil/Lymphocyte (H/L) ratio), and leukocyte profiles between incubation and chick rearing highlighting the role of foraging strategies in a seabird (Calonectris diomedea). Chick rearing was more energetically demanding and stressful than incubation as demonstrated by high stress levels (H/L ratio and leukocytes) and lower body stores (assessed by TRI and the increment of weight) due to the high energy requirements of rearing chicks. Also, our results make reconsider the simplistic trade-off model where reproduction increases metabolism and consequently the rate of oxidative stress. In fact, high energy expenditure (VeDBA) during chick rearing was correlated with low levels of oxidative damage likely due to mechanisms at the level of mitochondrial inner membranes (uncoupling proteins or low levels of oxygen partial pressure). Further (more distant) and longer (more days) foraging trips were performed during incubation, when antioxidants showed low levels compared to chick rearing due to incubation fasting, a change in diet, or a combination of these factors; but unlikely because of oxidative shielding since no relation was found between oxidative damage and antioxidant capacity. Males showed higher numbers of monocytes which were positively correlated with antioxidant capacity compared to females, suggesting sexual differences in immune profiles. Species-specific costs and energetic demands of different breeding phases trigger behavioural and physiological adjustments.
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Affiliation(s)
- R Colominas-Ciuró
- Dept. Evolutionary Ecology, Museo Nacional de Ciencias Naturales, 28006 Madrid, Spain; Dept. Ecology, Physiology & Ethology. CNRS, University of Strasbourg, Institut Pluridisciplinaire Hubert Curien, UMR 7178, 67087 Strasbourg, France..
| | - M Cianchetti-Benedetti
- Behavioural Ecology & Ecophysiology Group, Department of Animal Ecology & Systematics, Justus-Liebig University Giessen, D-35392 Giessen, Germany; Ornis Italica, 00199 Rome, Italy
| | - L Michel
- Behavioural Ecology & Ecophysiology Group, Department of Animal Ecology & Systematics, Justus-Liebig University Giessen, D-35392 Giessen, Germany
| | | | - P Quillfeldt
- Behavioural Ecology & Ecophysiology Group, Department of Animal Ecology & Systematics, Justus-Liebig University Giessen, D-35392 Giessen, Germany
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Reyes-González JM, De Felipe F, Morera-Pujol V, Soriano-Redondo A, Navarro-Herrero L, Zango L, García-Barcelona S, Ramos R, González-Solís J. Sexual segregation in the foraging behaviour of a slightly dimorphic seabird: Influence of the environment and fishery activity. J Anim Ecol 2021; 90:1109-1121. [PMID: 33550590 DOI: 10.1111/1365-2656.13437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 10/21/2020] [Indexed: 11/30/2022]
Abstract
Sexual segregation in foraging strategies has been little studied in marine species with slight sexual size dimorphism (SSD), particularly regarding the role of environmental conditions and fishery activities. Sexual differences in fishery attendance are of particular concern because uneven mortality associated with bycatch may exacerbate impacts in wildlife populations. Using a seabird species with slight SSD, the Scopoli's shearwater Calonectris diomedea, we assessed sexual differences in foraging strategies and evaluated whether annual environmental conditions and fishery activity shaped such differences. We used a 4-year dataset combining bird GPS tracking, stable isotope analysis, the North Atlantic Oscillation index (NAO, as main proxy of the annual environmental conditions), and fishing vessel positioning data (Vessel Monitoring System, VMS) from the North Western Mediterranean, a region under intense fishery pressure. From 2012 to 2015, we tracked 635 foraging trips from 78 individuals. Females showed a greater foraging effort, a lower fishery attendance, a lower trophic level, and a narrower isotopic niche width than males. Moreover, in years with unfavourable environmental conditions, both sexes showed a lower fishery attendance and increased foraging effort compared to the year with most favourable conditions. Our results revealed that environmental conditions influence space use, feeding resources and fishery attendance differently in males and females, overall suggesting competitive exclusion of females by males from main foraging areas and feeding resources, particularly in unfavourable environmental conditions. We highlight the importance of evaluating sexual segregation under disparate environmental conditions, particularly in species with slight SSD, since segregation may pass otherwise unnoticed if only years with similar environmental conditions are considered. The higher fishery attendance of males likely explains the male-biased bycatch ratio for this species. Thus, inter-sexual differences in foraging strategies can lead to an unbalanced exposure to relevant threats and have implications for the conservation of long-lived species.
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Affiliation(s)
- José Manuel Reyes-González
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | - Fernanda De Felipe
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | - Virginia Morera-Pujol
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | - Andrea Soriano-Redondo
- CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal.,CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, Lisbon, Portugal
| | - Leia Navarro-Herrero
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | - Laura Zango
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | | | - Raül Ramos
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
| | - Jacob González-Solís
- Institut de Recerca de la Biodiversitat (IRBio) and Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals (BEECA), Universitat de Barcelona, Barcelona, Spain
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De Pascalis F, Imperio S, Benvenuti A, Catoni C, Rubolini D, Cecere JG. Sex-specific foraging behaviour is affected by wind conditions in a sexually size dimorphic seabird. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.05.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Costantini D, Bustamante P, Brault-Favrou M, Dell'Omo G. Patterns of mercury exposure and relationships with isotopes and markers of oxidative status in chicks of a Mediterranean seabird. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114095. [PMID: 32041034 DOI: 10.1016/j.envpol.2020.114095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
The Mediterranean basin is a hotspot of mercury (Hg) contamination owing to intense anthropogenic emissions, volcanic activity and oligotrophic conditions. Little work has been done to assess the sources of Hg exposure for seabirds and, particularly, the physiological consequences of Hg bioaccumulation. In this study, we (i) describe the individual and temporal variation in blood concentration of total Hg (THg) over three breeding seasons, (ii) identify the factors that affect the THg exposure and (iii) determine the individual- and population-level connections between THg and blood-based markers of oxidative status in chicks of Scopoli's shearwaters (Calonectris diomedea) breeding on the island of Linosa in the southern Mediterranean. We carried out the work on chicks near fledging because they are fed with prey captured near the colony, thus their Hg levels reflect local contamination. The concentration of THg in erythrocytes varied from 0.23 to 4.29 μg g-1 dw. Chicks that were fed upon higher trophic level prey (i.e., higher δ15N values) had higher THg levels. Individual variation in THg concentrations was not explained by parental identity, sex nor δ13C values. There was significant variation in THg among chicks born from the same mother in different years. We found significant correlations between THg and markers of oxidative status; however, these correlations were no longer significant when we took into account the annual variation in mean values of all metrics. Males with higher values of body condition index had higher blood THg, while THg and body condition index were not correlated in females. Our data indicate that THg levels were moderate to high if compared to other seabirds. However, there is little evidence for harmful short-term detrimental effects owing to THg exposure.
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Affiliation(s)
- David Costantini
- Unité Physiologie Moléculaire et Adaptation (PhyMA), Muséum National D'Histoire Naturelle, CNRS, CP32, 57 rue Cuvier, 75005, Paris, France; Ornis italica, Piazza Crati 15, 00199, Rome, Italy.
| | - Paco Bustamante
- Littoral Environnement et Sociétés, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000, La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005, Paris, France
| | - Maud Brault-Favrou
- Littoral Environnement et Sociétés, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000, La Rochelle, France
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