Movements and Distribution of Radio-Collared Canada Geese in Anchorage, Alaska

York, Darryl L.; Cummings, John L.; Wedemeyer, Kate

doi:10.2307/3536894

Cited by 8 publications

(3 citation statements)

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“…We included nests of unmarked and previously leg-banded females in the control group. We did not include nests of females that were neck-collared during earlier studies (York et al 2000) in the event there was an unknown effect of collars on nesting. We used PROC GLM in SAS to model the effects of treatment, year of nesting, and the interaction between year and treatment on Julian date of nest initiation and mean egg volume.…”

Section: Discussionmentioning

confidence: 99%

Effects of Abdominally Implanted Radiotransmitters with Percutaneous Antennas on Migration, Reproduction, and Survival of Canada Geese

Hupp

Pearce

Mulcahy

et al. 2006

Journal of Wildlife Management

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Abdominally implanted radiotransmitters with percutaneous antennas are increasingly used to monitor movements, survival, and reproduction of waterbirds. However, there has been relatively little assessment of the effects of such radios on avian demographic parameters or migration. We implanted either a 26‐ or 35‐g abdominal transmitter with percutaneous antenna in 198 adult female lesser Canada geese (Branta canadensis parvipes) in Anchorage, Alaska during 2000 and 2001. We compared migration chronology, reproductive effort, and survival of radiomarked females to 118 control females marked with leg bands. Arrival dates following spring migration were similar among females in different treatments in 2001. However, in 2002, wind direction during late migration was less favorable, and arrival of females with 35‐g radiotransmitters lagged 1–2 days behind that of control females. Nest initiation dates, clutch size, and mean egg volume were similar for 152 nests of females that lacked radios and 62 nests of radiomarked females. Estimated nesting propensity for females with operable radiotransmitters was 61% and 72% in 2001 and 2002, respectively. Apparent annual survival (ϕ = 0.82, 95% confidence interval: 0.76 to 0.87) was similar among treatments in the first year after geese were marked. In the second and third years after marking, model‐averaged estimates for survival of females with large radiotransmitters were 10% lower than estimates for control females. However, the effect of large radios on long‐term survival was equivocal because of uncertainty surrounding treatment estimates. We conclude that abdominally implanted radiotransmitters with percutaneous antennas had small effects on migration chronology but no apparent effects on fecundity. Abdominal transmitters can provide unbiased estimates of anserine survival in the first year after deployment. Because of the potentially greater effects of larger transmitters on migration and long‐term survival, we recommend that biologists minimize the size of implanted transmitters and deploy radios with caution if long‐term survival of marked birds is a concern.

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Section: Discussionmentioning

confidence: 99%

Effects of Abdominally Implanted Radiotransmitters with Percutaneous Antennas on Migration, Reproduction, and Survival of Canada Geese

Hupp

Pearce

Mulcahy

et al. 2006

Journal of Wildlife Management

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“…Given the sensitive nature of airfield environments, the collection of high-quality ecological data can often be complicated, requiring the use of remote field methods due to limited accessibility, such as camera traps (Carswell et al, 2021;Scheideman et al, 2017), radio telemetry (York et al, 2000), GPS tracking (Askren et al, 2019) and predictive modelling based on pre-existing movement data (Arrondo et al, 2021). Lagomorphs (particularly rabbits and hares) are frequently reported in airfield environments and are reportedly involved in strike events near globally (Ball, Caravaggi, & Butler, 2021b;Dolbeer & Begier, 2021;Kitowski, 2016).…”

Section: Introductionmentioning

confidence: 99%

Hareport hazard: Identifying hare activity patterns and increased mammal–aircraft strike risk at an International Airport

Ball

Caravaggi

Butler

2022

Remote Sens Ecol Conserv

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Reported strike events between wildlife and aircraft are hazardous to aircraft and airfield operations and are increasing globally. To develop effective mitigation strategies, the relative hazard a species poses to aircraft, as well as information relating to its life history, are key to the development of effective mitigation strategies in Wildlife Hazard Management Plans. However, given the complex nature of airfield environments with access restrictions and the presence of sensitive equipment, the collection of high‐quality ecological data can be difficult. Here we use motion‐activated camera traps to collect activity data on a population of Irish hares (Lepus timidus hibernicus) inhabiting the airfield at Dublin International Airport, to investigate the link between hare activity and aircraft activity in relation to hare strikes. Camera traps revealed that the hare population at the airfield largely displayed a bimodal crepuscular activity pattern, with activity peaking at sunrise and at sunset. Recorded hare strike times at the airfield were closely associated with hare activity times with a high temporal overlap between these datasets. In comparison, hare activity and aircraft movement activity had a moderate overlap across all seasons, with strikes peaking at times with low aircraft movements. We demonstrate the importance of understanding the circadian and seasonal activity patterns of hazardous species at airfields for targeted strike mitigation.

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“…Natural and artificial barriers can reduce access to certain areas by geese and limit geese numbers in defined areas during the molt (Gosser et al 1997). Recently, an integrated hazing approach using pyrotechnics, dogs, and lasers has become a popular method of deterring geese from a site (Castelli and Sleggs 2000, Swift 2000, York et al 2000, Holevinski et al 2007). Hazing involves continuously harassing geese until they leave the site, using one or more scare tactics.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of an Integrated Non-Lethal Canada Goose Management Program in New York (2004 - 2006)

Preusser¹,

Seamans²,

Gosser³

et al. 2008

vertebrate_pest_conference

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New York State has an estimated population of 249,702 resident Canada geese. Human-goose conflicts are increasing, including unacceptable accumulation of goose feces in public parks, overgrazing of landscaped lawns, noise, and aggressive behavior of individual geese. An integrated Canada goose management program was conducted and evaluated at 8 sites in Orange County, New York from 2004 to 2006. The program, conducted from March through November each year, consisted of egg oiling (300-470 eggs oiled a year), hazing to reduce local goose populations using multiple techniques, public outreach/education, and program monitoring. The monitoring component included goose movement and population surveys using neck-collared geese and standardized fecal counts, at both managed and unmanaged sites. We monitored 3 unmanaged ("control") sites to provide a comparison. We conducted fecal surveys, as an indirect method for potentially estimating site-specific goose populations and associated reduction in damage. The number of droppings counted, when standardized to droppings per foot per day, decreased at treated sites (2004, 0.16; 2005, 0.12; 2006, 0.05) but did not differ at unmanaged sites, indicating a sustained population reduction on site during the project. In addition, the mean number of geese observed at treated sites decreased each year (2004, 77; 2005, 19; 2006, 11) while the mean number at unmanaged sites did not differ. The alternate location of the majority of dispersed geese is unknown, although monitoring of marked birds indicates that many birds moved only short distances (<2 km). The implementation of an integrated non-lethal goose damage management program over 3 years reduced the number of Canada geese at specific locations and minimized local conflicts. The widespread adoption of this type of program could reduce human-Canada goose conflicts across a larger landscape but will require extensive coordination of local projects, a public involvement process, and an intensive, long-term commitment of resources.

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Movements and Distribution of Radio-Collared Canada Geese in Anchorage, Alaska

Cited by 8 publications

References 0 publications

Effects of Abdominally Implanted Radiotransmitters with Percutaneous Antennas on Migration, Reproduction, and Survival of Canada Geese

Effects of Abdominally Implanted Radiotransmitters with Percutaneous Antennas on Migration, Reproduction, and Survival of Canada Geese

Hareport hazard: Identifying hare activity patterns and increased mammal–aircraft strike risk at an International Airport

Evaluation of an Integrated Non-Lethal Canada Goose Management Program in New York (2004 - 2006)

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