A5066874685- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Ecology and Vegetation Dynamics Studies
- Aquatic Invertebrate Ecology and Behavior
- Mollusks and Parasites Studies
- T-cell and B-cell Immunology
- Climate variability and models
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Rangeland Management and Livestock Ecology
- Study of Mite Species
- Chromosomal and Genetic Variations
- Zoonotic diseases and public health
- vaccines and immunoinformatics approaches
- Invertebrate Taxonomy and Ecology
- Plant and animal studies
- Immune Cell Function and Interaction
- Environmental and Ecological Studies
- Genomics and Phylogenetic Studies
- Economic and Environmental Valuation
- Immunotherapy and Immune Responses
University of Oslo
2009-2022
Norwegian Beekeepers Association
2022
Natural History Museum Vienna
2017
Estación Biológica de Doñana
2007-2010
American Museum of Natural History
2009
Museo de Historia Natural
2009
University of Alicante
2005-2009
Consejo Superior de Investigaciones Científicas
2008
Terra
2007
This article presents managed honey bee colony loss rates over winter 2019/20 resulting from using the standardised COLOSS questionnaire in 37 countries. Six countries were outside Europe, including, for first time this series of articles, New Zealand. The 30,491 beekeepers Zealand reported 4.5% colonies with unsolvable queen problems, 11.1% dead after and 2.6% lost through natural disaster. gave an overall rate 18.1%, higher than previous year. varied greatly between countries, 7.4% to...
Abstract Beekeepers have various options to control the parasitic mite Varroa destructor in honey bee colonies, but no empirical data are available on methods they apply practice. We surveyed 28,409 beekeepers maintaining 507,641 colonies 30 European countries concerning methods. The set of 19 different diagnosis and measures was taken from annual COLOSS questionnaire colony losses. most frequent activities were monitoring infestations, drone brood removal, oxalic acid applications formic...
Abstract: Here we provide the first assessment of accuracy lightweight satellite transmitters (<80 g) under actual operating conditions and performance Argos system in southern Europe. To estimate transmitter used equipped with a Global Positioning System (GPS) compared location estimates provided by GPS. Using 68th percentile to define locations estimates, observed was 4 km for Location Class (LC) 1, 15 LC 0, 20 A, 59 B, which is line reported other authors. Yet, error remaining 32% data...
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Abstract Geographic information systems (GIS)‐based habitat‐suitability modelling is becoming an essential tool in conservation biology. A multi‐scale approach has been proposed as a particularly useful way to identify different factors affecting habitat preferences. In this paper, we developed predictive models of potentially suitable for golden eagles Aquila chrysaetos at three spatial scales representative Mediterranean area on the Iberian Peninsula. We used logistic regression through...
The phylogenetic relationships among genera of the subfamily Ariantinae (Pulmonata, Helicidae), especially sister-group relationship Cylindrus obtusus, were investigated with three mitochondrial (12S rRNA, 16S Cytochrome c oxidase subunit I) and two nuclear marker genes (Histone H4 H3). Within Ariantinae, C. obtusus stands out because its aberrant cylindrical shell shape. Here, we present trees based on these five sequences discuss position phylogeographical scenarios in comparison...
Abstract In birds, the noncoding control region (CR) and its flanking genes are only parts of mitochondrial (mt) genome that have been modified by intragenomic rearrangements. raptors, two regions present: CR has shifted to a new position with respect “ancestral avian gene order,” whereas pseudo‐control (ΨCR) is located at original genomic CR. As possible mechanisms for this rearrangement, duplication transposition considered. During characterization mt order in Bonelli's eagle Hieraaetus...
Abstract Capsule Birds cover daily distances not normally exceeding 20 km during the initial phase of dispersal, with peak movement/activity in afternoon.
The natal dispersal of a Golden Eagle from its eyrie to the site where it reproduced for first time was monitored. After covering > 16 000 km2 in three years juvenile dispersal, and despite flying 130 km site, eagle finally settled vacant territory just 26 away place had hatched. Almost 95% total area visited during year tracking; less than 40% used remainder period. During regularly territories occupied by adult Eagles. Previous records occupancy currently occupies show an alternation...
Natal dispersal, i.e., the movements performed between departure from parental territory and settlement in first breeding site (Greenwood & Harvey 1982), is an essential demographic process which influences ecological dynamics, spatial distribution, genetic structure of populations (Johnson Gaines 1990, Clobert et al. 2001, Bullock 2002).To study natal dispersal many bird species, remote-tracking systems have been frequently used, especially VHF radio-tracking techniques.However, continuous...
Estimating indices of abundance threatened species is crucial to preserving biodiversity. Over the last few decades, noninvasive genetic sampling has proven be a more straightforward and less expensive approach than capture—mark—recapture analyses. In particular, molted feathers have become extremely popular for monitoring bird populations. Diagnostic molecular markers such as microsatellites, however, are still not available many avian conservation concern. Highly polymorphic genes major...
Cylindrus obtusus is one of the most prominent endemic snail species Eastern Alps. It restricted to alpine meadows and calcareous rocky habitats above 1500 m. Peculiar intraspecific differences have been observed in its genital tract eastern populations two mucus glands associated with love dart sac are highly variable, while almost no variation was western populations. This raises question whether mode success reproduction respective different. To find out these anatomical reflect genetic...
Abstract Recent climate change has led to advanced spring phenology in many temperate regions. The phenological response variation the local environment, such as habitat characteristics of territories birds occupy, is less clear. aim this study understand how ecological conditions affect breeding time, and its consequences for reproduction, a white-throated dipper Cinclus cinclus population river system Norway during 34 years (1978–2011). Hatching date almost nine days, indicating higher...
The sustainable use of natural resources is critical for addressing the global challenges today. Strategies harvesting need to consider not only harvested species, but also other non-harvested species interacting with them in same ecosystem. In addition, environmental variation needs be considered, climate change currently being one main sources this variation. Understanding consequences complex interactions between different drivers and processes affecting dynamics ecosystems across spatial...