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Donaldson JE, Ezenwa VO, Morrison TA, Holdo RM. Effects of migratory animals on resident parasite dynamics. Trends Ecol Evol 2024; 39:625-633. [PMID: 38355367 DOI: 10.1016/j.tree.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 02/16/2024]
Abstract
Migratory animals can bring parasites into resident animal (i.e., non-migratory) home ranges (transport effects) and exert trophic effects that either promote or reduce parasite exposure to resident hosts. Here, we examine the importance of these transport and trophic effects and their interactions for resident parasite dynamics. We propose that migrant transport and trophic effects are impacted by the number of migratory animals entering a resident's home range (migration intensity), the amount of time that migrants spend within a resident's home range (migration duration), and the timing of migrant-resident interactions. We then incorporate migration intensity, duration, and timing into a framework for exploring the net impact of migrant trophic and transport effects on resident animal parasite prevalence.
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Affiliation(s)
| | - Vanessa O Ezenwa
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA
| | - Thomas A Morrison
- School of Biodiversity, Animal Health, and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Ricardo M Holdo
- Odum School of Ecology, University of Georgia, Athens, GA, USA
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2
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Jeong YH, Choi SH, Banjade M, Jin SD, Park SM, Kunwar B, Oh HS. Spatiotemporal Niche Separation among Passeriformes in the Halla Mountain Wetland of Jeju, Republic of Korea: Insights from Camera Trap Data. Animals (Basel) 2024; 14:724. [PMID: 38473109 DOI: 10.3390/ani14050724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
This study analyzed 5322 camera trap photographs from Halla Mountain Wetland, documenting 1427 independent bird sightings of 26 families and 49 species of Passeriformes. Key observations include morning activities in Cyanoptila cyanomelana and Horornis canturians and afternoon activity in Muscicapa dauurica and Phoenicurus auroreus. Wetlands were significantly preferred (P_i = 0.398) despite their smaller area, contrasting with underutilized grasslands (P_i = 0.181). Seasonal activity variations were notable, with overlap coefficients ranging from 0.08 to 0.81 across species, indicating diverse strategies in resource utilization and thermoregulation. Population density was found to be a critical factor in habitat usage, with high-density species showing more consistent activity patterns. The study's results demonstrate the ecological adaptability of Passeriformes in the Halla Mountain Wetland while highlighting the limitations of camera trapping methods. These limitations include their fixed field of view and intermittent recording capability, which may not fully capture the spectrum of complex avian behaviors. This research underlines the need for future studies integrating various methodologies, such as direct observation and acoustic monitoring, to gain a more comprehensive understanding of avian ecology.
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Affiliation(s)
- Young-Hun Jeong
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju-si 63243, Jeju-do, Republic of Korea
| | - Sung-Hwan Choi
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju-si 63243, Jeju-do, Republic of Korea
| | - Maniram Banjade
- National Institute of Ecology, 1210 Geumgang-ro, Maseru-myeon, Seocheon-gun 33657, Chungcheongnam-do, Republic of Korea
| | - Seon-Deok Jin
- National Institute of Ecology, 1210 Geumgang-ro, Maseru-myeon, Seocheon-gun 33657, Chungcheongnam-do, Republic of Korea
| | - Seon-Mi Park
- Research Institute for Basic Sciences, Jeju National University, Jeju-si 63243, Jeju-do, Republic of Korea
| | - Binod Kunwar
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju-si 63243, Jeju-do, Republic of Korea
| | - Hong-Shik Oh
- Faculty of Science Education, Jeju National University, Jeju-si 63243, Jeju-do, Republic of Korea
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3
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Sergeyev M, Holbrook JD, Lombardi JV, Tewes ME, Campbell TA. Behaviorally mediated coexistence of ocelots, bobcats and coyotes using hidden Markov models. OIKOS 2022. [DOI: 10.1111/oik.09480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Maksim Sergeyev
- Caesar Kleberg Wildlife Research Inst., Texas A&M Univ. Kingsville Kingsville TX USA
| | - Joseph D. Holbrook
- Haub School of the Environment and Natural Resources, Univ. of Wyoming Laramie WY USA
| | - Jason V. Lombardi
- Caesar Kleberg Wildlife Research Inst., Texas A&M Univ. Kingsville Kingsville TX USA
| | - Michael E. Tewes
- Caesar Kleberg Wildlife Research Inst., Texas A&M Univ. Kingsville Kingsville TX USA
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Clarke AR, Measham PF. Competition: A Missing Component of Fruit Fly (Diptera: Tephritidae) Risk Assessment and Planning. INSECTS 2022; 13:1065. [PMID: 36421968 PMCID: PMC9697728 DOI: 10.3390/insects13111065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Tephritid fruit flies are internationally significant pests of horticulture. Because they are also highly invasive and of major quarantine concern, significant effort is placed in developing full or partial pest risk assessments (PRAs) for fruit flies, while large investments can be made for their control. Competition between fruit fly species, driven by the need to access and utilise fruit for larval development, has long been recognised by researchers as a fundamental component of fruit fly biology, but is entirely absent from the fruit fly PRA literature and appears not be considered in major initiative planning. First presenting a summary of the research data which documents fruit fly competition, this paper then identifies four major effects of fruit fly competition that could impact a PRA or large-scale initiative: (i) numerical reduction of an existing fruit fly pest species following competitive displacement by an invasive fruit fly; (ii) displacement of a less competitive fruit fly pest species in space, time or host; (iii) ecological resistance to fruit fly invasion in regions already with competitively dominant fruit fly species; and (iv) lesser-pest fruit fly resurgence following control of a competitively superior species. From these four major topics, six more detailed issues are identified, with each of these illustrated by hypothetical, but realistic biosecurity scenarios from Australia/New Zealand and Europe. The scenarios identify that the effects of fruit fly competition might both positively or negatively affect the predicted impacts of an invasive fruit fly or targeted fruit fly control initiative. Competition as a modifier of fruit fly risk needs to be recognised by policy makers and incorporated into fruit fly PRAs and major investment initiatives.
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Affiliation(s)
- Anthony R. Clarke
- School of Biology and Environmental Science, Queensland University of Technology (QUT), GPO Box 2434, Brisbane, QLD 4001, Australia
| | - Penelope F. Measham
- Horticulture and Forestry Science, Department of Agriculture and Fisheries, GPO Box 267, Ecosciences Precinct Dutton Park, Brisbane, QLD 4102, Australia
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5
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Bird Communities in a Changing World: The Role of Interspecific Competition. DIVERSITY 2022. [DOI: 10.3390/d14100857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Significant changes in the environment have the potential to affect bird species abundance and distribution, both directly, through a modification of the landscape, habitats, and climate, and indirectly, through a modification of biotic interactions such as competitive interactions. Predicting and mitigating the consequences of global change thus requires not only a sound understanding of the role played by biotic interactions in current ecosystems, but also the recognition and study of the complex and intricate effects that result from the perturbation of these ecosystems. In this review, we emphasize the role of interspecific competition in bird communities by focusing on three main predictions derived from theoretical and empirical considerations. We provide numerous examples of population decline and displacement that appeared to be, at least in part, driven by competition, and were amplified by environmental changes associated with human activities. Beyond a shift in relative species abundance, we show that interspecific competition may have a negative impact on species richness, ecosystem services, and endangered species. Despite these findings, we argue that, in general, the role played by interspecific competition in current communities remains poorly understood due to methodological issues and the complexity of natural communities. Predicting the consequences of global change in these communities is further complicated by uncertainty regarding future environmental conditions and the speed and efficacy of plastic and evolutionary responses to fast-changing environments. Possible directions of future research are highlighted.
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Berlusconi A, Preatoni D, Assandri G, Bisi F, Brambilla M, Cecere JG, Cioccarelli S, Grattini N, Gustin M, Martinoli A, Rubolini D, Sbrilli A, Zanichelli A, Martinoli A, Morganti M. Intra-guild spatial niche overlap among three small falcon species in an area of recent sympatry. THE EUROPEAN ZOOLOGICAL JOURNAL 2022. [DOI: 10.1080/24750263.2022.2055170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- A. Berlusconi
- Environment Analysis and Management Unit - Guido Tosi Research Group - Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
- CNR-IRSA National Research Council – Water Research Institute, Brugherio (MB) and Montelibretti (RM), Italy
| | - D. Preatoni
- Environment Analysis and Management Unit - Guido Tosi Research Group - Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
| | - G. Assandri
- Area Avifauna Migratrice, Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Ozzano dell’Emilia (BO), Italy
| | - F. Bisi
- Environment Analysis and Management Unit - Guido Tosi Research Group - Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
| | - M. Brambilla
- Politiche Ambientali, Università degli Studi di MilanoDipartimento di Scienze e , Milan, Italy
| | - J. G. Cecere
- Area Avifauna Migratrice, Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Ozzano dell’Emilia (BO), Italy
| | - S. Cioccarelli
- Politiche Ambientali, Università degli Studi di MilanoDipartimento di Scienze e , Milan, Italy
- Ethology Unit, Department of Biology, University of Pisa, Pisa, Italy
| | - N. Grattini
- S.O.M., Stazione Ornitologica Modenese “Il Pettazzurro”, Modena, Italy
| | - M. Gustin
- Conservation Department LIPU-Birdlife Italia, Parma, Italy
| | - A. Martinoli
- Environment Analysis and Management Unit - Guido Tosi Research Group - Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
| | - D. Rubolini
- CNR-IRSA National Research Council – Water Research Institute, Brugherio (MB) and Montelibretti (RM), Italy
- Politiche Ambientali, Università degli Studi di MilanoDipartimento di Scienze e , Milan, Italy
| | - A. Sbrilli
- CNR-IRSA National Research Council – Water Research Institute, Brugherio (MB) and Montelibretti (RM), Italy
| | - A. Zanichelli
- Conservation Department LIPU-Birdlife Italia, Parma, Italy
| | - A. Martinoli
- Environment Analysis and Management Unit - Guido Tosi Research Group - Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
| | - M. Morganti
- CNR-IRSA National Research Council – Water Research Institute, Brugherio (MB) and Montelibretti (RM), Italy
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Luiselli L, Dendi D, Petrozzi F, Segniagbeto GH. Lizard community structure and spatial resource use along a forest-savannah-urban habitat gradient in the Dahomey Gap (West Africa). Urban Ecosyst 2022. [DOI: 10.1007/s11252-022-01215-w] [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]
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Dear-enemy effect between two sympatric bird species. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2021.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Linek N, Volkmer T, Shipley JR, Twining CW, Zúñiga D, Wikelski M, Partecke J. A songbird adjusts its heart rate and body temperature in response to season and fluctuating daily conditions. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200213. [PMID: 34121457 PMCID: PMC8200648 DOI: 10.1098/rstb.2020.0213] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
In a seasonal world, organisms are continuously adjusting physiological processes relative to local environmental conditions. Owing to their limited heat and fat storage capacities, small animals, such as songbirds, must rapidly modulate their metabolism in response to weather extremes and changing seasons to ensure survival. As a consequence of previous technical limitations, most of our existing knowledge about how animals respond to changing environmental conditions comes from laboratory studies or field studies over short temporal scales. Here, we expanded beyond previous studies by outfitting 71 free-ranging Eurasian blackbirds (Turdus merula) with novel heart rate and body temperature loggers coupled with radio transmitters, and followed individuals in the wild from autumn to spring. Across seasons, blackbirds thermoconformed at night, i.e. their body temperature decreased with decreasing ambient temperature, but not so during daytime. By contrast, during all seasons blackbirds increased their heart rate when ambient temperatures became colder. However, the temperature setpoint at which heart rate was increased differed between seasons and between day and night. In our study, blackbirds showed an overall seasonal reduction in mean heart rate of 108 beats min-1 (21%) as well as a 1.2°C decrease in nighttime body temperature. Episodes of hypometabolism during cold periods likely allow the birds to save energy and, thus, help offset the increased energetic costs during the winter when also confronted with lower resource availability. Our data highlight that, similar to larger non-hibernating mammals and birds, small passerine birds such as Eurasian blackbirds not only adjust their heart rate and body temperature on daily timescales, but also exhibit pronounced seasonal changes in both that are modulated by local environmental conditions such as temperature. This article is part of the theme issue 'Measuring physiology in free-living animals (Part I)'.
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Affiliation(s)
- Nils Linek
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Tamara Volkmer
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - J Ryan Shipley
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
| | - Cornelia W Twining
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Limnological Institute, University of Konstanz, Konstanz, Germany
| | - Daniel Zúñiga
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Martin Wikelski
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany
| | - Jesko Partecke
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
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