Combining high temporal resolution whale distribution and vessel tracking data improves estimates of ship strike risk
Autor: | Elliott L. Hazen, Briana Abrahms, Hannah Blondin, Larry B. Crowder |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Balaenoptera musculus Matching (statistics) biology business.industry Whale 010604 marine biology & hydrobiology Distribution (economics) biology.organism_classification 010603 evolutionary biology 01 natural sciences Habitat Climatology biology.animal Environmental science High temporal resolution Vessel tracking Scale (map) business Ecology Evolution Behavior and Systematics Nature and Landscape Conservation |
Zdroj: | Biological Conservation. 250:108757 |
ISSN: | 0006-3207 |
Popis: | When assessing harmful human-wildlife interactions, researchers often attempt to calculate the risk that an interaction will occur. However, these analyses often quantify risk based on temporally static or spatially coarse measures of species distributions and human activity. As a result, risk estimates often do not reflect the dynamic nature of animal movement and anthropogenic uses of the environment. To illustrate the impacts of various temporal resolutions of data, we present a case study of blue whale (Balaenoptera musculus) ship strike risk in the U.S. Southern California Bight by combining predicted daily whale distributions with continuous vessel movement data. This represents the first effort to characterize blue whale ship strike risk by including the most recent high-resolution estimates of eastern Pacific blue whale distribution. We used these data to compare the ship strike risk models at varying temporal resolutions to address the effect of using coarser resolution input data. Our results show that it is critical to account for both dynamic patterns of human activity and species occurrences when assessing the risk of human-wildlife conflict. Analysis based on higher resolutions of potential interactions show greater variability in risk. Coarser resolution data mask variability in risk that may result from patchy conditions of blue whale habitat and/or variations in vessel traffic. We also demonstrate that coarser temporal resolutions lead to overestimations of risk. For highly mobile species subject to human-wildlife interactions such as blue whales, long-term environmental solutions depend on matching ecological data to human activity data at the most appropriate scale. |
Databáze: | OpenAIRE |
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