Abstract

Research is underway to examine how a wide range of animal species have responded to reduced levels of human activity during the COVID-19 pandemic. In this perspective article, we argue that raptors (i.e., the orders Accipitriformes, Cariamiformes, Cathartiformes, Falconiformes, and Strigiformes) are particularly well-suited for investigating potential ‘anthropause’ effects: they are sensitive to environmental perturbation, affected by various human activities, and include many locally and globally threatened species. Lockdowns likely alter extrinsic factors that normally limit raptor populations. These environmental changes are in turn expected to influence – mediated by behavioral and physiological responses – the intrinsic (demographic) factors that ultimately determine raptor population levels and distributions. Using this population-limitation framework, we identify a range of research opportunities and conservation challenges that have arisen during the pandemic, related to changes in human disturbance, light and noise pollution, collision risk, road-kill availability, supplementary feeding, and persecution levels. Importantly, raptors attract intense research interest, with many professional and amateur researchers running long-term monitoring programs, often incorporating community-science components, advanced tracking technology and field-methodological approaches that allow flexible timing, enabling continued data collection before, during, and after COVID-19 lockdowns. To facilitate and coordinate global collaboration, we are hereby launching the ‘Global Anthropause Raptor Research Network’ (GARRN). We invite the international raptor research community to join this inclusive and diverse group, to tackle ambitious analyses across geographic regions, ecosystems, species, and gradients of lockdown perturbation. Under the most tragic of circumstances, the COVID-19 anthropause has afforded an invaluable opportunity to significantly boost global raptor conservation.

Highlights

  • Restrictions introduced to control the spread of COVID-19 have resulted in a significant global reduction in human activity

  • We argue that raptors are well-suited for investigating potential ‘anthropause’ effects: they are sensitive to environmental perturbation, affected by various human activities, and include many locally and globally threatened species

  • This will allow Global Anthropause Raptor Research Network’ (GARRN) to develop a database that can support a strong portfolio of comple­ mentary anthropause-focused research projects, to contribute to Global Raptor Impact Network (GRIN)’s raptor conservation efforts, and to help build an inclusive global raptor research community that will continue to collaborate long after the COVID-19 pandemic has come to an end – for the benefit of both raptors and humans

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Summary

Introduction

Restrictions introduced to control the spread of COVID-19 have resulted in a significant global reduction (and some pronounced shifts) in human activity. Governments are taking drastic steps to stem the spread of COVID19, including lockdowns affecting billions of people (Bates et al, 2020; Diffenbaugh et al, 2020; Doherty et al, 2021) This has reduced air, water, light, and sound pollution (Chowdhury et al, 2021), travel and trade, and human visitation to many (but not all recreational) areas (Rutz et al, 2020; Venter et al, 2020). More humans visit protected areas and human activity is increased in peripheral ○ More disturbance for sensitive species evident from smaller home range areas during partial lockdowns (with shops closed and restricted travelling sizes (avoiding areas of pedestrian and vehicle traffic) and restricted activity options abroad, people seek recreation in urban parks and nature reserves) times (avoiding human presence/encounters). Changes in human hunting pressure (depending on the strength and timing of lockdown measures) at migratory pinch points a Following the terminology proposed by Steenhof (2017)

Research opportunities and emerging challenges
Human disturbance
Habitat loss and landscape management
Anthropogenic pollution
Collisions with anthropogenic obstacles
Persecution
Contaminants and pollutants
Biodiversity
Prey species and diet composition
A vision for collaborative research and community building
Existing infrastructure and collaboration opportunities
Data availability and quality
Findings
Concluding remarks
Full Text
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