By recording nocturnally migrating passerines with tracking radar we have investigated how coastlines affect the migrants' flight paths. Birds could use coastlines as an orientation aid or as a reference cue to compe...
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By recording nocturnally migrating passerines with tracking radar we have investigated how coastlines affect the migrants' flight paths. Birds could use coastlines as an orientation aid or as a reference cue to compensate for wind drift while mi- grating. However, on the small scale of Falsterbo Peninsula in southern Sweden, we found very little effect of coastlines on migrants flight paths, irrespective of altitude. We tracked 2 930 migrants in three autumn and two spring seasons, at altitudes from 60 up to 3 000 meters. We compared tracks of migrants flying in three different areas, which correspond to the three main coastlines, and can demonstrate that the orientation of the tracks did not differ in a way consistent with the coastlines between the areas in autumn, and showed only a slight effect in spring. This is in accordance with earlier infrared device monitoring in Falsterbo, but contrary to earlier visual observations. It supports the view of nocturnally migrating passerines as mainly broad-front migrants. Even though the coastlines on the scale of the peninsula affected the flight paths very little, it is possible that the coastline has an effect on a larger regional scale, by migrants avoiding long sea crossings and thereby being funneled towards the peninsula, but this remains to be investigated [Current Zoology 60 (5): 660-669, 2014].
In order to compare the two species' flight performance over the exposed and windy Falsterbo Peninsula, where thermal conditions seldomly are very favorable, we used tracking radar to study flight parameters of sparr...
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In order to compare the two species' flight performance over the exposed and windy Falsterbo Peninsula, where thermal conditions seldomly are very favorable, we used tracking radar to study flight parameters of sparrowhawks Accipiter ni- sus and common buzzards Buteo buteo during autumn migration. The results showed a clear difference between sparrowhawks and common buzzards in their flight altitudes and speeds, and in the wind conditions they encountered. Common buzzards had higher flight altitudes and were more selective of wind. Flight altitude was negatively related to the wind speed, which was most pronounced for common buzzards. Sparrowhawks had higher mean air- and cross-country speeds than common buzzards. Air- speed was negatively related, whereas ground and cross-country speeds were positively related to the tailwind component for both raptors. The differences between sparrowhawks and buzzards could to a large degree be explained by a larger dependence on thermal soaring among the common buzzards; a strategy associated with selectivity for favourable thermal and wind conditions during migratory flight. An additional important explanation for the interspecific differences was the habit of the sparrowhawks to combine migratory flight with hunting for prey, which makes it prone to fly at lower altitudes and use flapping flight to a much larger degree than common buzzards which do not forage during their migratory passage of the Falsterbo Peninsula [Current Zoo- logy 60(5): 670-679, 2014].
With the continued development of tracking technology and increasing interest in animal movement,our understanding of migration behavior has become more ***,there are still many species that have not been well studied...
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With the continued development of tracking technology and increasing interest in animal movement,our understanding of migration behavior has become more ***,there are still many species that have not been well studied,particularly sea ***,we present the first year-round Global Positioning System(GPS)tracking data of the Black-tailed Gull(Larus crassirostris)at the population *** used solar-powered GPS-Global System for Mobile communication(GSM)loggers to successfully track 30 individuals breeding at Xingrentuo Islet,Liaoning Province,China,for 1-3 *** for one individual who roamed in the far north of the Yellow Sea during non-breeding period,all others did a directed southward *** routes and wintering sites differed among migrating gulls and between years for the birds tracked for two or more ***,during wintering,the migrating gulls were more likely to travel over a large body of water and shift sites,and some trajectories were quite complex,which was probably closely related to what we observed in the field about their boat-chasing *** to wintering movements,the post-breeding movements ranged over a smaller ***,almost all of them had a long post-breeding period near the breeding islet(≥120days,<220 km from the breeding islet),and 80%of the gulls who were tracked more than one year had at least one faithful post-breeding *** to the post-breeding period,only approximately half of the migrating gulls had a pre-breeding period that was shorter(3-20 days)and closer to the breeding islet(≤80 km).Migration distance varied among migrating gulls(range 209-2405 km)and the gulls moved least distance during postbreeding ***,we found that the southward movement of the migrating gulls occurred when the temperature near the breeding islet dropped;specifically,the gulls directly migrated southward away from the post-breeding *** results suggest that the B
Background: Health-related quality of life (HRQOL) is affected for many years following cancer treatment. With an increasing number of long-term cancer survivors, HRQOL will be a key concern in the future. There is a ...
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Background: Health-related quality of life (HRQOL) is affected for many years following cancer treatment. With an increasing number of long-term cancer survivors, HRQOL will be a key concern in the future. There is a lack of qualitative studies investigating long-term cancer survivors’ needs and experience of late effects and HRQOL. Objective: The aim of this sub-study is to describe cancer survivors’ own experience of late effects affecting HRQOL six to eight years after diagnosis. Methods: We used a qualitative methodology with semi-structured focus group interviews to gain an in-depth understanding of participants’ experience of their HRQOL. Interviews were audio-recorded, transcribed and analyzed using thematic analysis. Results: All of the participants reported late effects at some point after the treatment. Some of the experienced late effects had improved over the years, while the late effects mentioned in this article were still prominent six to eight years after the diagnosis. They described, among others, late effects such as reduced physical strength, cognitive difficulties, lack of energy and increased sensitivity. The participants described the late effects as bearable, but still affecting their HRQOL by limiting their activity level, their ability to work and their social interactions. Conclusions: Six to eight years post-treatment, cancer survivors still experienced physical and cognitive late effects affecting their HRQOL. The findings indicate that some late effects affect HRQOL for a long time. To prepare cancer survivors for post-treatment life and to optimize their HRQOL, they need information concerning potential late effects before, during and after cancer treatment, as well as support services and follow-up in the municipalities.
Objectives: The aim of this study was to evaluate how Swedish women describe their emotional state of being during the eighth week through the eleventh week after they have become pregnant again after suffering a prev...
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Objectives: The aim of this study was to evaluate how Swedish women describe their emotional state of being during the eighth week through the eleventh week after they have become pregnant again after suffering a previous miscarriage. Method: A qualitative content analysis with an inductive approach has been used to analyze fourteen interviews that served as the data base for this study. The content analysis resulted in the development of five categories which evolved into one primary theme. Findings: The five categories identified were Worry and preoccupation;Distance;managing their feelings;Mourning what is lost;Guarded happiness and expectations. These categories were compiled into a main theme, “Worry consumes a lot of energy, but on the other side lies happiness”. This theme focused on whether the women could feel any happiness about being pregnant again despite their concerns with the previous miscarriage. Conclusions: The emotional states of the women when they get pregnant again are typically characterized by anxiety, worry and concerns about their current pregnancy. The women have a tendency to distance themselves emotionally from their pregnancy but also strive to find the joy of being pregnant again. During the new pregnancy they find themselves in need of support from their family and friends as well as in need of support from the healthcare system.
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