13 research outputs found
Mobility of moose-comparing the effects of wolf predation risk, reproductive status, and seasonality
In a predator-prey system, prey species may adapt to the presence of predators with behavioral changes such as increased vigilance, shifting habitats, or changes in their mobility. In North America, moose (Alces alces) have shown behavioral adaptations to presence of predators, but such antipredator behavioral responses have not yet been found in Scandinavian moose in response to the recolonization of wolves (Canis lupus). We studied travel speed and direction of movement of GPS-collared female moose (n = 26) in relation to spatiotemporal differences in wolf predation risk, reproductive status, and time of year. Travel speed was highest during the calving (May-July) and postcalving (August-October) seasons and was lower for females with calves than females without calves. Similarly, time of year and reproductive status affected the direction of movement, as more concentrated movement was observed for females with calves at heel, during the calving season. We did not find support for that wolf predation risk was an important factor affecting moose travel speed or direction of movement. Likely causal factors for the weak effect of wolf predation risk on mobility of moose include high moose-to-wolf ratio and intensive hunter harvest of the moose population during the past century
Hva er det med monsteret? Fryd, frykt og âandregjĂžringâ i NĂ„r alle sover (2011)
Title: Whatâs the Deal with Monsters? Fright, Frolic and âOtheringâ in NĂ„r alle sover (2011)This article explores how othering is at play in Nikolai Houm and Rune Markhusâ picturebook NĂ„r alle sover (2011), which features a monster. By use of picturebook analysis and theory on othering, âthe otherâ, monsters and affects, we seek to examine which role a monster may play in a picturebook, and what makes the monster character in a childrenâs picturebook powerful and relevant. Our findings suggest that the monster's role is not to scare the child reader, but rather to develop an often taboo-ridden topic, namely othering. The monster stands out from the crowd, and the majority group excludes it. With its many deviating features, the monster functions as a powerful character that challenges the readerâs prejudices around âusâ and âthemâ. Our conclusion is that the monster can be a flexible literary tool for conveying certain difficulties and concerns. Very often, the monster is used to question ethical topics in our society such as xenophobia and othering
Hva er det med monsteret? Fryd, frykt og andregjĂžring i NĂ„r alle sover (2011)
This article explores how othering is at play in Nicolai Houm and Rune Markhusâ picturebook NĂ„r alle sover (2011), which features a monster. By use of picturebook analysis and theory on othering, âthe otherâ, monsters and affects, we seek to examine which role a monster may play in a picturebook, and what makes the monster character in a childrenâs picturebook powerful and relevant. Our findings suggest that the monsterâs role is not to scare the child reader, but rather to develop an often taboo-ridden topic, namely othering. The monster stands out from the crowd, and the majority group excludes it. With its many deviating features, the monster functions as a powerful character that challenges the readerâs prejudices around âusâ and âthemâ. Our conclusion is that the monster can be a flexible literary tool for conveying certain difficulties and concerns. Very often, the monster is used to question ethical topics in our society such as xeno- phobia and othering
The assessment of facial expressions in piglets undergoing tail docking and castration: Toward the development of the Piglet Grimace Scale
Many piglets are exposed to potentially painful husbandry procedures within the first week of life, including tail docking and castration, without the provision of either anaesthesia or analgesia. The assessment methods used to evaluate pain experienced by piglets are often affected by low specificity and practical limitations, prompting the investigation of alternative methodologies. The assessment of changes in facial expression following a painful event has been successfully applied to several species. The objective of this pilot study was to evaluate the utility of a Grimace Scale applied to neonatal pigs to evaluate pain evoked by tail docking and castration.Eight female piglets, sus scrofa domesticus (Landrace/Large White X synthetic sire line) underwent tail docking and 15 male piglets (75% Large White and 25% Belgian Landrace) were exposed to the castration procedure. Clear images of the faces of the piglets were collected immediately pre- and post-procedure. The images were used by experienced observers to identify Facial Action Units (FAU) which changed in individuals over this period and a scoring scale was depicted in a training manual. A set of randomly selected images were then combined in a scorebook, which was evaluated after training by 30 scorers, blind to the treatment. The scale for most FAU was used with a high level of consistency across all observers. Tail docking induced a significant change (P<0.05) only in the âorbital tighteningâ Action Unit, whereas no change in any unit was observed in castrated piglets. In this initial stage of development, orbital tightening at least seems to have the potential to be applied to investigate painful conditions in neonatal pigs. Nonetheless, more studies are needed to assess its full effectiveness and to evaluate the influence of possible confounds (e.g. handling stress) on the observed changes in facial expressions