RESUMO
Reduced food availability during chick raising is a major driver of farmland bird declines. For the Eurasian Skylark (Alauda arvensis), food availability is determined by various factors (i.e., arthropod abundance/diversity, accessibility of the vegetation, distance to foraging sites). In modern farmland, it is supposed to decrease over the breeding season due to less penetrable vegetation. We explored foraging habitat selection by chick-raising Skylarks with a focus on the seasonal dynamics of habitat use and food availability. We investigated (i) habitat selection concerning prey biomass/diversity, vegetation cover, and distance to foraging sites, (ii) the overall and seasonal habitat use, and (iii) seasonal developments of foraging parameters (e.g., the feeding frequency) as indicators of food availability. We collected data on foraging habitats and foraging parameters of chick-raising Skylark pairs at 51 nests from a Central European population in 2018 and 2019. Prey biomass/diversity and vegetation cover were measured for all habitats around 42 of these nests. As revealed by multivariate and compositional analyses, Skylarks mainly selected foraging habitats based on the proximity to nests. The most frequent habitats within home ranges could not be ranked according to an overall importance for foraging and their use partially changed over time. The feeding frequency increased throughout the breeding season, while other foraging parameters did not show significant changes. In contrast to our expectations, our data indicated therefore an increase, not a decrease in food availability in the late breeding season. This also implies that the way in which Skylarks used habitats was constantly suitable to raise offspring. We interpret this to be a consequence of the heterogeneous farmland composition of the study area that enabled Skylarks to establish a diverse home range and to benefit from the synergetic effects of neighboring habitat types. Thus, our findings provide support for the high importance of crop diversity in Skylark conservation.
RESUMO
Objective: The Aachen model study course in medicine was developed in response to a negative appraisal of the Faculty of Medicine of the RWTH Aachen University by the Science Council in 2000. The aim is to create graduates who are capable of further training and can work in evidence-based and patient-centered health care while incorporating scientific findings. Methodology: In 2003 the medical degree was fully switched over to the model study course format. This means an annual cohort size of about 280 students. These go through a modularized and integrated curriculum, which is designed as a learning spiral. This requires a special interdisciplinary collaboration of teachers and curriculum planners. In addition to the modules, longitudinal elements such as workplace-based examinations, communication or practical skills are embedded in the curriculum. Results: The state exam results of the Aachen graduates have already improved significantly even for the first cohort and the university has been able to maintain an almost uninterrupted high level from 2008 to 2018. The students satisfaction with the model course is not only evident in the student course assessment and qualitative group discussions but also in various national rankings. Conclusion: The complete redesign of the course starting from the first semester onwards posed major challenges for all those involved in the faculty. The implementation of a completely reformed curriculum, such as the model study course, can only succeed through constructive cooperation of the various stakeholders at a faculty. The reorientation was able to address the major flaws of the 2002 report by the Science Council, student dissatisfaction and the poor performance in the nationwide state exams.
