Migration characteristics of long-tailed ducks (Clangula hyemalis) from the western Canadian Arctic

Bartzen, Blake A.; Dickson, D. Lynne; Bowman, Timothy D.

doi:10.1007/s00300-016-2035-6

Cited by 4 publications

(4 citation statements)

References 41 publications

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“…(), Fisk, Lydersen, and Kovacs (), Peklova, Hussey, Hedges, Treble, and Fisk (), Spencer, Gilchrist, and Mallory (), Harwood, Smith, Auld, Melling, and Yurkowski (), Maftei, Davis, and Mallory (), Davis, Maftei, and Mallory (), Auger‐Méthé, Lewis, and Derocher (), Lunn et al. () and Bartzen, Dickson, and Bowman ().…”

Section: Methodsmentioning

confidence: 99%

“…We used existing telemetry data collected from 1989 to 2016 from 1,283 individuals across four species groups (Table 1) Table 1). These individuals were captured and instrumented as part of other studies that are described by Orr, Joe, and Evic (2001), Mallory and Gilbert (2008), Dietz et al (2008Dietz et al ( , 2014, Ferguson, Dueck, Loseto, and Luque (2010), Gaston et al (2011), Fisk, Lydersen, and, Peklova, Hussey, Hedges, Treble, and Fisk (2012), Spencer, Gilchrist, and Mallory (2014), Harwood, Smith, Auld, Melling, and Yurkowski (2015), Maftei, Davis, and Mallory (2015), Davis, Maftei, and Mallory (2016), Auger-Méthé, Lewis, and Derocher (2016), Lunn et al (2016) and Bartzen, Dickson, and Bowman (2017).…”

Section: Species and Data Typesmentioning

confidence: 99%

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Abundance and species diversity hotspots of tracked marine predators across the North American Arctic

Yurkowski

Auger‐Méthé

Mallory

et al. 2018

Diversity and Distributions

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Aim Climate change is altering marine ecosystems worldwide and is most pronounced in the Arctic. Economic development is increasing leading to more disturbances and pressures on Arctic wildlife. Identifying areas that support higher levels of predator abundance and biodiversity is important for the implementation of targeted conservation measures across the Arctic. Location Primarily Canadian Arctic marine waters but also parts of the United States, Greenland and Russia. Methods We compiled the largest data set of existing telemetry data for marine predators in the North American Arctic consisting of 1,283 individuals from 21 species. Data were arranged into four species groups: (a) cetaceans and pinnipeds, (b) polar bears Ursus maritimus (c) seabirds, and (d) fishes to address the following objectives: (a) to identify abundance hotspots for each species group in the summer–autumn and winter–spring; (b) to identify species diversity hotspots across all species groups and extent of overlap with exclusive economic zones; and (c) to perform a gap analysis that assesses amount of overlap between species diversity hotspots with existing protected areas. Results Abundance and species diversity hotpots during summer–autumn and winter–spring were identified in Baffin Bay, Davis Strait, Hudson Bay, Hudson Strait, Amundsen Gulf, and the Beaufort, Chukchi and Bering seas both within and across species groups. Abundance and species diversity hotpots occurred within the continental slope in summer–autumn and offshore in areas of moving pack ice in winter–spring. Gap analysis revealed that the current level of conservation protection that overlaps species diversity hotspots is low covering only 5% (77,498 km2) in summer–autumn and 7% (83,202 km2) in winter–spring. Main conclusions We identified several areas of potential importance for Arctic marine predators that could provide policymakers with a starting point for conservation measures given the multitude of threats facing the Arctic. These results are relevant to multilevel and multinational governance to protect this vulnerable ecosystem in our rapidly changing world.

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Section: Methodsmentioning

confidence: 99%

Section: Species and Data Typesmentioning

confidence: 99%

Abundance and species diversity hotspots of tracked marine predators across the North American Arctic

Yurkowski

Auger‐Méthé

Mallory

et al. 2018

Diversity and Distributions

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“…After nearly a century of telemetry innovation, there is now a wide array of telemetry devices with an even wider array of potential applications [1,2,12,16]. Telemetry now enables studies on topics such as animal movement and migration [17][18][19], physiological processes [20,21], or social interactions [22], and our survey respondents compiled an even longer list of current applications (Additional file 2). However, the survey responses also show how many research interests still cannot yet be satisfactorily investigated using telemetry.…”

Section: Technological Trade-offsmentioning

confidence: 99%

Technology wish lists and the significance of temperature-sensing wildlife telemetry

2021

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Telemetry has revolutionized studies in wildlife biology, ecology, physiology, and conservation. With the increased demand for telemetry, new technology has made great strides to enable long studies in harsh and remote areas on a wide variety of study species. As the climate crisis continues to impact animals, temperature-sensing telemetry has become a helpful technique for understanding the effects of climate change and how to protect wildlife from them. However, temperature-sensing telemetry and telemetry in general still pose technological challenges and accessibility issues for the researchers who use it. Currently available telemetry technology is expensive, too large and heavy for many study species, and cannot measure all variables researchers want to study. These technological improvements have especially been neglected for temperature-sensing telemetry, which may be underutilized given the current climate crisis. To understand why innovation has stalled, and where it should be directed going forward, we gathered opinions from researchers who use telemetry and from manufacturers that create and supply telemetry equipment. Our goal was to broadly describe the current technological landscape, compare it to what we envision for the future, and make suggestions for how to reach that future.

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“…If energetic needs vary according to flight behaviour, resource management and conservation planning may, consequently, be affected. Migrating birds are constrained by en route fuel needs supplied in critical staging areas; so, effective location, size and distribution of these areas is essential to sustain migrating birds (Finger et al 2016;Bartzen et al 2017;Fronczak et al 2017). Wintering areas that are subject to substantial periodic influxes of birds may require targeted management that provides sufficient resources to support these population increases (Alonso et al 1994;Central Valley Joint Venture 2006).…”

Section: Introductionmentioning

confidence: 99%

Moving at the speed of flight: dabbling duck-movement rates and the relationship with electronic tracking interval

et al. 2019

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Context Effective wildlife management requires information on habitat and resource needs, which can be estimated with movement information and modelling energetics. One necessary component of avian models is flight speeds at multiple temporal scales. Technology has limited the ability to accurately assess flight speeds, leading to estimates of questionable accuracy, many of which have not been updated in almost a century. Aims We aimed to update flight speeds of ducks, and differentiate between migratory and non-migratory flight speeds, a detail that was unclear in previous estimates. We also analysed the difference in speeds of migratory and non-migratory flights, and quantified how data collected at different temporal intervals affected estimates of flight speed. Methods We tracked six California dabbling duck species with high spatio-temporal resolution GPS–GSM transmitters, calculated speeds of different flight types, and modelled how estimates varied by flight and data interval (30min to 6h). Key results Median migratory speeds were faster (but non-significant) for the larger mallard (Anas platyrhynchos; 82.5kmh–1), northern pintail (Anas acuta; 79.0kmh–1) and gadwall (Mareca strepera; 70.6kmh–1), than the smaller-bodied northern shoveler (Spatula clypeata; 65.7kmh–1), cinnamon teal (Spatula cyanoptera; 63.5kmh–1) and American wigeon (Mareca Americana; 52kmh–1). Migratory flights were faster than non-migratory flights for all species and speeds were consistently slower with an increasing data interval. Implications The need to balance time and energy requirements may drive different speeds for migratory and non-migratory flights. Lower speeds at longer intervals are likely to be due to a greater proportion of ‘loafing’ time included in flighted segments, demonstrating that data acquired at different intervals provide a means to evaluate and estimate behaviours that influence speed estimation. Shorter-interval data should be the most accurate, but longer-interval data may be easier to collect over lengthier timeframes, so it may be expedient to trade-off a degree of accuracy in broad-scale studies for the larger dataset. Our updated flight speeds for dabbling duck species can be used to parameterise and validate energetics models, guide management decisions regarding optimal habitat distribution, and, ultimately, improve conservation management of wetlands for waterfowl.

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Migration characteristics of long-tailed ducks (Clangula hyemalis) from the western Canadian Arctic

Cited by 4 publications

References 41 publications

Abundance and species diversity hotspots of tracked marine predators across the North American Arctic

Abundance and species diversity hotspots of tracked marine predators across the North American Arctic

Technology wish lists and the significance of temperature-sensing wildlife telemetry

Moving at the speed of flight: dabbling duck-movement rates and the relationship with electronic tracking interval

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