Late Quaternary Vegetational Changes on the East Side of Yellowstone Park, Wyoming

Waddington, J C; Wright, H. E.

doi:10.1016/0033-5894(74)90006-4

Cited by 88 publications

(71 citation statements)

References 10 publications

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“…The name of each zone carries implications about the ecological conditions at the time of deposition. Similar zones appear in the core from Cub Creek pond (Waddington and Wright, 1970) and other cores (R. G. Baker, unpub.…”

Section: Quaternary Palynology Materials and Proceduresmentioning

confidence: 76%

“…18) is tentatively referred to this subzone on the basis of (1) presence of mixed alpine-and subalpine-plant macrofossils, (2) distribution of Betula glandulosa (bog bireh) fruits and catkin scales, and (3) rare presence of arboreal macrofossils. ·The Cub Creek pond sequence (Waddington and Wright, 1970) shows a similar Betula pollen peak at the base of the core.…”

Section: Betula Subzone (960 -875 Em)mentioning

confidence: 97%

“…IN THE AREA Three cores from nearby localities were recently analyzed for pollen (H. E. Wright, Jr., written commun., 1967;Waddington andWright, 1970, 1974). One of these was taken at Cub Creek pond 12 miles west of the East Entrance to Yellowstone National Park (SS-26 in fig.…”

Section: Other Paleobotanical Workmentioning

confidence: 99%

“…Cub Creek pond about 1.6 miles east of Yellowstone Lake along East Entrance Road (also site of Waddington and Wright's (1970) core). Southwest side Sylvan Lake, on East Entrance Road.…”

Section: Surface Samples From Thementioning

confidence: 99%

“…The relationship between the modern pollen rain and modern vegetation was examined for analogs for (Waddington and Wright, 1970). SS -12, -13, and -14 are surface samples from the coring area.…”

Section: Pollen Surf Ace Samplesmentioning

confidence: 99%

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Late Quaternary vegetation history of the Yellowstone Lake basin, Wyoming

Baker¹

1976

Professional Paper

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Section: Quaternary Palynology Materials and Proceduresmentioning

confidence: 76%

Section: Betula Subzone (960 -875 Em)mentioning

confidence: 97%

Section: Other Paleobotanical Workmentioning

confidence: 99%

“…Cub Creek pond about 1.6 miles east of Yellowstone Lake along East Entrance Road (also site of Waddington and Wright's (1970) core). Southwest side Sylvan Lake, on East Entrance Road.…”

Section: Surface Samples From Thementioning

confidence: 99%

Section: Pollen Surf Ace Samplesmentioning

confidence: 99%

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Late Quaternary vegetation history of the Yellowstone Lake basin, Wyoming

Baker¹

1976

Professional Paper

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Influence of whitebark pine decline on fall habitat use and movements of grizzly bears in the Greater Yellowstone Ecosystem

Costello

Manen

Haroldson

et al. 2014

Ecology and Evolution

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When abundant, seeds of the high-elevation whitebark pine (WBP; Pinus albicaulis) are an important fall food for grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem. Rates of bear mortality and bear/human conflicts have been inversely associated with WBP productivity. Recently, mountain pine beetles (Dendroctonus ponderosae) have killed many cone-producing WBP trees. We used fall (15 August–30 September) Global Positioning System locations from 89 bear years to investigate temporal changes in habitat use and movements during 2000–2011. We calculated Manly–Chesson (MC) indices for selectivity of WBP habitat and secure habitat (≥500 m from roads and human developments), determined dates of WBP use, and documented net daily movement distances and activity radii. To evaluate temporal trends, we used regression, model selection, and candidate model sets consisting of annual WBP production, sex, and year. One-third of sampled grizzly bears had fall ranges with little or no mapped WBP habitat. Most other bears (72%) had a MC index above 0.5, indicating selection for WBP habitats. From 2000 to 2011, mean MC index decreased and median date of WBP use shifted about 1 week later. We detected no trends in movement indices over time. Outside of national parks, there was no correlation between the MC indices for WBP habitat and secure habitat, and most bears (78%) selected for secure habitat. Nonetheless, mean MC index for secure habitat decreased over the study period during years of good WBP productivity. The wide diet breadth and foraging plasticity of grizzly bears likely allowed them to adjust to declining WBP. Bears reduced use of WBP stands without increasing movement rates, suggesting they obtained alternative fall foods within their local surroundings. However, the reduction in mortality risk historically associated with use of secure, high-elevation WBP habitat may be diminishing for bears residing in multiple-use areas.

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Effectiveness of Partial Sedation to Reduce Stress in Captured Mule Deer

et al. 2020

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Information garnered from the capture and handling of free-ranging animals helps advance understanding of wildlife ecology and can aid in decisions on wildlife management. Unfortunately, animals may experience increased levels of stress, injuries, and death resulting from captures (e.g., exertional myopathy, trauma). Partial sedation is a technique proposed to alleviate stress in animals during capture, yet efficacy of partial sedation for reducing stress and promoting survival post-capture remains unclear. We evaluated the effects of partial sedation on physiological, biochemical, and behavioral indicators of acute stress and probability of survival post-capture for mule deer (Odocoileus hemionus) that were captured via helicopter net-gunning in the eastern Greater Yellowstone Ecosystem, Wyoming, USA. We administered 10-30 mg of midazolam and 15 mg of azaperone intramuscularly (IM) to 32 mule deer in 2016 and 53 mule deer in 2017, and maintained a control group (captured but not sedated) of 38 mule deer in 2016 and 54 mule deer in 2017. To evaluate indicators of acute stress, we measured heart rate, blood-oxygen saturation, body temperature, respiration rate, and levels of serum cortisol. We recorded number of kicks and vocalizations of deer during handling and evaluated behavior during release. We also measured levels of fecal glucocorticoids as an indicator of baseline stress. Midazolam and azaperone did not reduce physiological, biochemical, or behavioral indicators of acute stress or influence probability of survival post-capture. Mule deer that were administered midazolam and azaperone, however, were more likely to hesitate, stumble or fall, and walk during release compared with individuals in the control group, which were more likely to trot, stot, or run without stumbling or falling. Our findings suggest that midazolam (10-30 mg IM) and azaperone (15 mg IM) may not yield physiological or demographic benefits for captured mule deer as previously assumed and may pose adverse effects that can complicate safety for captured animals, including drug-induced lethargy. Although we failed to find efficacy of midazolam and azaperone

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Late Quaternary Vegetational Changes on the East Side of Yellowstone Park, Wyoming

Cited by 88 publications

References 10 publications

Late Quaternary vegetation history of the Yellowstone Lake basin, Wyoming

Late Quaternary vegetation history of the Yellowstone Lake basin, Wyoming

Influence of whitebark pine decline on fall habitat use and movements of grizzly bears in the Greater Yellowstone Ecosystem

Effectiveness of Partial Sedation to Reduce Stress in Captured Mule Deer

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