scholarly journals Disappearance Rate of Bovine Fetuses at Grand Teton National Park, State Elk Feedgrounds and at the National Elk Refuge

Author(s):  
Walter Cook ◽  
Elizabeth Williams ◽  
E. Thorne

Brucellosis is a bacterial disease that causes elk and bison to abort and may have potential to be transmitted to domestic cattle. In this preliminary study we examined how long healthy bovine fetuses remained in the environment and could be available for contact by elk, bison, or cattle. Healthy bovine fetuses were placed on state elk feedgrounds, the National Elk Refuge, and Grand Teton National Park to simulate an elk or bison aborted fetus. Fetuses were monitored until they disappeared due to scavenging. Ninety percent of the fetuses disappeared from the National elk refuge within 31 hours, but it took 163 and 130 hours for fetuses to disappear from state feedgrounds and Grand Teton National Park, respectively. We found, via analysis of covariance, that there was a significant difference in fetal disappearance rates depending on where the simulated abortions occurred. We also found that aborted fetuses could potentially serve as a source of bacterial infection for several days. This preliminary study will be expanded to include greater numbers of animals and additional locations in coming seasons.

Author(s):  
Walter Cook ◽  
Elizabeth Williams ◽  
Shelli Dubay ◽  
E. Thorne

Brucellosis is a bacterial disease of cattle that has become established in elk and bison of the Greater Yellowstone Area. It causes elk and bison to abort and has the potential to be transmitted back to domestic cattle, which are now free of the disease. In this study we examined how long healthy bovine fetuses, as surrogates for aborted bison or elk fetuses, remained in the environment and could be available for contact by elk, bison, and cattle. Healthy bovine fetus carcasses were placed on state elk feedgrounds, the National Elk Refuge, and Grand Teton National Park to simulate an elk or bison aborted fetus. Fetuses were monitored until they disappeared due to scavenging. Fetuses took 26 hr on average to disappear from the National Elk Refuge, 46 hr at state elk feedgrounds, and 61 hr at Grand Teton National Park. Ninety percent of the fetuses could be expected to disappear from the National Elk Refuge within 60 hr (2.5 days); from state elk feedgrounds within 105 hr (4.4 days); and from Grand Teton National Park within 140 hr (5.8 days). Analysis of covariance showed that there was a significant difference in fetal disappearance rates depending on habitat type and site of placement. The dominant scavengers at all locations were coyotes (Canis latrans), but ravens (Corvus corax), magpies (Pica pica), bald eagles (Haliaeetus leucocephalus) and golden eagles (Aquila chrysaetos) also frequently participated in scavenging. We found that aborted fetuses could potentially serve as a source of bacterial infection for several days. This study will be expanded to include greater numbers in the coming season.


Author(s):  
Ron Scogin

My investigations during July and August, 1984 at the U.W.-N.P.S. Research Center had two primary objectives, both involving problems of pollination ecology of flora native to Grand Teton National Park: 1. A survey of the distribution of floral coloration on a community basis within the park; and 2. A preliminary study of the pollination ecology of the color morphs of Delphinium occidentale (Ranunculaceae).


Author(s):  
Youngjun Park ◽  
Haekwon Chung ◽  
Sohyun Park

Aim: This study explores the changes in regular walking activities during the phases of the pandemic. Background: With the spread of COVID-19 transmission, people are refraining from going out, reducing their physical activity. In South Korea, COVID-19 broke out in the 4th week of 2020 and experienced the first cycle phases of the pandemic, such as outbreak, widespread, and decline. In response to the pandemic, the government encouraged voluntary participation in social distancing campaigns, and people reduced their outside activities. Methods: This article examines the decrease and increase of the Prevalence of Regular Walking (≥30 min of moderate walking a day, on ≥5 days a week) by the COVID-19 phases. This study is based on weekly walking data for 15 weeks in 2020, via the smartphone healthcare app, which is managed by 25 public health offices of the Seoul government. Results: According to the findings, the level of prevalence of regular walking (PRW) has a significant difference before and after the outbreak, and every interval of the four-stage COVID-19 phases, that is, pre-pandemic, initiation, acceleration, and deceleration. The level of PRW sharply decreased during initiation and acceleration intervals. In the deceleration interval of COVID-19, the PRW kept increasing, but it has not yet reached the same level as the previous year when the COVID-19 did not exist. Conclusions: As a preliminary study, this study explains empirically how COVID-19 changed PRW in Seoul. It would be helpful to enhance our understanding of the changes in physical inactivity in the pandemic period.


2021 ◽  
Vol 13 (14) ◽  
pp. 8006
Author(s):  
Till Schmäing ◽  
Norbert Grotjohann

The Wadden Sea ecosystem is unique in many respects from a biological perspective. This is one reason why it is protected by national parks in Germany and by its designation as a UNESCO World Heritage Site. In biology didactics, there are only a few studies that focus on the Wadden Sea. This work investigates students’ word associations with the two stimulus words “national park” and “UNESCO World Heritage Site”. The survey was conducted among students living directly at the Wadden Sea and among students from the inland. The analysis of the identified associations (n = 8345) was carried out within the framework of a quantitative content analysis to be able to present and discuss the results on a group level. A statistically significant difference was found between the two groups. Overall, results showed that the students made subject-related associations as well as a large number of associations to both stimulus words that could be judged as non-subject-related. In some cases, a connection with the region of residence could be found, but this was not generally the case. Even students’ immediate residential proximity to the Wadden Sea is no guarantee that they have knowledge of the two considered protection terms.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 185-185
Author(s):  
Rachel McPherson ◽  
Barbara Resnick ◽  
Elizabeth Galik

Abstract Communication and interactions are an integral part of care in long-term care settings. Resident variables, such as race and gender, shape communication and interaction between staff and residents. The Quality of Interactions Schedule (QuIS) was developed to measure the quality of verbal and nonverbal interactions among nursing staff and older adults initially for those in acute care and later used as well in a variety of long term care settings. A quantified measurement of the quality of interactions between residents and staff was created to quantify the QuIS. The purpose of this study was to describe the gender and racial differences in scored quality of interactions. Data for the present study was based on baseline data from the Evidence Integration Triangle for Behavioral and Psychological Symptoms of Dementia (EIT-4-BPSD) implementation study. A total of 535 residents from 55 settings were included in the analyses. An analysis of covariance was conducted to determine a difference in QuIS scores between males and females while controlling for age. The second model tested for differences in QuIS scores between blacks and whites while controlling for age and gender. There was not a statistically significant difference in QuIS scores between male and female residents. There was a significant difference in QuIS scores between those who were black versus white, such that those who were black received more positive interactions from staff than those who were white. Future work should focus on a deeper examination of resident factors and staff factors that may influence these interactions.


1978 ◽  
Vol 47 (1) ◽  
pp. 191-195 ◽  
Author(s):  
Norman G. Gordon

This study is a reinvestigation of the effectiveness of the Trail Making Test in discriminating between brain-damaged ( n = 51) and pseudoneurologic ( n = 72) subjects. All subjects were hospitalized male veterans at the Allen Park Veterans Administration Hospital. An analysis of covariance showed that the pseudoneurologic subjects performed at a significantly higher level than the brain-damaged subjects. Further analysis with two different cutoff scores exhibited unequal discriminatory power throughout the whole range of Trail Making Test scores. These results suggested diagnosing only when the scores were 9 or lower and 13 or higher. This use of extreme scores resulted in an over-all hit rate of 87% in the study. Comparisons with five major subgroupings of the pseudoneurologic subjects yielded only one significant difference: more accurate discrimination with the 12 cut-off score between 10 general-medical and peripheral nerve-damaged subjects (100% correct) and 18 psychotic subjects (39% accuracy).


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