Search Results (3)

Early childhood education (ECE) institutions in Norway highly value nature and outdoor activities. The framework plan for kindergartens encourages that children get insights into the origin of food. The approach for imparting this knowledge incentivises foraging in kindergartens. The eco-ethology of humans is dependent on cultural values and practices and what is available for harvest in the local environments in different seasons. This paper explores the incentives and motivations for foraging in kindergartens in Norway through a qualitative approach. The data was collected from Sámi and Norwegian ECE professionals through on-site video documentation, group interviews, in-depth semi-structural interviews, and field notes. It was analysed using reflexive thematic analysis, in which the researchers had an active role in the process through reflexive engagement with theory, data, and interpretation. Three themes related to the incentives and motivations for foraging were found: (1) “viewpoints of nature”, (2) “transfer and production of knowledge”, and lastly (3) “motives and meaning for foraging”. Norwegian ECE professionals seemed to view nature as a place to explore outdoors (termed friluftsliv) and Sámi ECE professionals used nature for a practical purpose (termed meahcci). Nature was used by all the ECE professionals for transfer and production of knowledge. The motives and meaning for foraging in ECE settings in Norway originated from the cultural values of purposeful use of nature’s resources. Further studies are needed to investigate the prevalence and importance of foraging practices in ECE, especially in terms of its significance to education for sustainability. Full article

Migratory birds play an important role in the eco-epidemiology of tick-borne diseases due to their ability to carry ticks for long distances. The aim of the present study was to investigate the prevalence and factors influencing the intensity of tick infestation in migratory birds. The study was conducted in a locality situated in the Vistula River valley, eastern Poland, during autumn, when the high migratory activity of birds is registered in the region. The birds were captured using ornithological nets and identified at the species level. In the next step, they were carefully inspected for attached ticks. Tick infestation was observed in 4.43% of the captured birds. The highest mean intensity of tick infestation was observed in birds foraging on the ground or in low shrubs and by long- and medium-distance migrants, i.e., Turdus merula (2.73), T. philomelos (2.04), and Erithacus rubecula (1.58). Ixodes ricinus was found to infest the birds most frequently. However, other tick species, i.e., I. trianguliceps, I. crenulatus (synonym I. canisuga), and I. apronophorus, rarely found in eastern Poland, were also found parasitizing birds. The occurrence of I. persulcatus, I. frontalis, and I. acuminatus (synonym I. redikorzevi) was confirmed in the region for the first time. The results of the study suggest that captured bird species are susceptible to tick infestation and could play an important role in the circulation of some tick-borne pathogens. They also play a significant role in the spread of ticks. The ecology and ethology of birds, including their foraging styles and migratory habits, are factors determining the risk of exposure of birds to tick attacks. Full article

Animal models with an eco-ethological relevance can help in identifying novel and reliable stress-related markers. To this end, 3-month-old C57BL/6J male mice were exposed to social defeat (SD) stress for 10 days as this stressor shows good face and predictive validity for several models of human affective disorders including depression, social phobia and post-traumatic stress disorder. Social avoidance and pain threshold were assessed 24 h and 4 weeks after the end of SD stress, while corticosterone was assayed at the beginning and at the end of the stressful procedure (days 1 and 10). SD subjects were characterized by increased corticosterone levels (30 min following stress exposure), increased latency to approach the social target in the short-term as well as increased emotionality in the long-term. Moreover, an increase in nociceptive threshold (stress-induced analgesia) was found both in the short-term and 4 weeks after the end of stress. These data indicate that the SD paradigm is able to induce emotional changes associated with a stressful/traumatic event. In addition, they indicate that variations in the nociceptive threshold might represent a physiological marker of both short- and long-term effects of stress. Full article