Ramona Julia HeimUniversity of Zurich | UZH · Department of Evolutionary Biology and Environmental Studies
Ramona Julia Heim
Dr. rer. nat.
About
18
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Introduction
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Publications
Publications (18)
The effects of climate change on plants are particularly pronounced in the Arctic region. Warming relaxes the temperature and nutrients boundaries that limit tundra plant growth. Increased resource availability under future climate conditions may induce a shift from a conservative economic strategy to an acquisitive one. Following the leaf economic...
Some animal populations are rapidly increasing in numbers and expanding their ranges, leading to intensified human‐wildlife conflicts. A wide range of tools has been developed to repel animals from areas where they are suspected to cause damage. For waterfowl, direct comparisons of multiple repelling methods have so far focused only on species´ pre...
Fires are predicted to increase in Arctic regions due to ongoing climate change. Tundra fires can alter carbon and nutrient cycling and release a substantial quantity of greenhouse gases with global consequences. Yet, the long-term effects of tundra fires on carbon (C) and nitrogen (N) stocks and cycling are still unclear. Here we used a space-for-...
Fires are predicted to increase in Arctic regions due to ongoing climate change. Tundra fires can alter carbon and nutrient cycling and release a substantial amount of greenhouse gases with global consequences. Yet, the long-term effects of tundra fires on carbon (C) and nitrogen (N) stocks and cycling are still unclear. Here we used a space-for-ti...
Fire shapes the world’s terrestrial ecosystems and has been influencing biodiversity patterns for millennia. Anthropogenic drivers alter fire regimes. Wildfires can amplify changes in the structure, biodiversity and functioning of the fast‐warming tundra ecosystem. However, there is little evidence available, how these fires affect species diversit...
Fire is a major driver of global vegetation patterns. It strongly reduces litter and thus alters physical and chemical properties of the environment. Studies investigating the interplay of fire and litter are scarce, and wetland ecosystems are strongly under-represented in research focusing on litter dynamics. We present data on short-term effects...
Wildfires are relatively rare in subarctic tundra ecosystems, but they can strongly change ecosystem properties. Short-term fire effects on subarctic tundra vegetation are well documented, but long-term vegetation recovery has been studied less. The frequency of tundra fires will increase with climate warming. Understanding the long-term effects of...
Unstructured citizen-science data are increasingly used for analysing the abundance and distribution of species. Here we test the usefulness of such data to predict the seasonal distribution of migratory songbirds, and to analyse patterns of migratory connectivity.
We used bird occurrence data from eBird, one of the largest global citizen science d...
Wildfires are one of the main factors for landscape change in tundra ecosystems. In the absence of external mechanical impacts, tundra plant communities are relatively stable, even in the face of climatic changes. In our study, lichen cover was degraded on burnt tundra sites, which increased the permafrost thaw depth from 100 to 190 cm. In old fire...
Wildfires are relatively rare in subarctic tundra ecosystems, but they can strongly change ecosystem properties. Short-term fire effects on subarctic tundra vegetation are well documented, but long-term vegetation recovery has been studied less. The frequency of tundra fires will increase with climate warming. Understanding the long-term effects of...
Wildfires affect biodiversity at multiple levels. While vegetation is directly changed by fire events, animals are often indirectly affected through changes in habitat and food availability. Globally, fire frequency and the extent of fires are predicted to increase in the future. The impact of fire on the biodiversity of temperate wetlands has gain...
In this study, we present the first investigation of diversity and ecology of tall-herb vegetation (class Mulgedio-Aconitetea Hadač & Klika in Klika & Hadač 1944) on the Khamar-Daban Range, the generally assumed easternmost distribution limit of this class. We collected data of 162 relevés in the key area of the upper reaches of Bolshoi Mamai River...
We used light-level-based geolocation to study the spatio-temporal behaviour of Siberian Rubythroats Calliope calliope breeding in the Amur region of the Russian Far East. Three retrieved devices revealed long-distance migrations, with southwestward movement from Amur through Northeast China in autumn, with the tracked individuals reaching their wi...
2017 was a record year for the Amur Bird Project: 23 volunteers and researchers from 10 countries took part in the surveys at Muraviovka Park. Together, we observed 217 species between April and October, mapped 89 breeding bird species and ringed almost 10,000 birds of 132 species. Furthermore, we re-trapped the very first birds with geolocators. M...
Projects
Project (1)
The aim of the Amur Bird Project is to study the avifauna along the Amur River – a species-rich and under surveyed area in Far East Russia. We collect data on distribution, ecology and threats of endangered and less-known species and established a long-term monitoring for both breeding birds and migrants. Our voluntary work is based at Muraviovka Park for Sustainable Land Use, a non-governmentally managed nature reserve. Environmental education plays an important part in the project as well. More information:
www.amurbirding.blogspot.com
www.facebook.com/amurbirdproject/
