Hans-Ulrich Peter

Hans-Ulrich Peter
Friedrich Schiller University Jena | FSU · Institute of Ecology

About

160
Publications
38,746
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1,990
Citations
Citations since 2017
22 Research Items
1038 Citations
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2017201820192020202120222023050100150200
2017201820192020202120222023050100150200

Publications

Publications (160)
Technical Report
Full-text available
Antarctica and the surrounding Southern Ocean are under increasing pressure from cumulative impacts of climate change, pollution, fisheries, tourism and a variety of other human activities. These changes pose a high risk both to local polar ecosystems and to the regulation of the global climate, as well as through global sea-level rise. Thus, long-...
Technical Report
Ecological monitoring of the dismantling of the A4 motorway (efficiency study) The removal of the barrier effect and habitat fragmentation as weil as immission-related and other edge effects on the adjacent ecosystems as a result of the deconstruction of the Federal Motorway BAB 4 in the Leutratal near Jena were investigated. The quantitati...
Article
Full-text available
Every year, billions of birds undertake extensive migrations between breeding and non-breeding areas, facing challenges that require behavioural adjustments, particularly to flight timing and duration. Such adjustments in daily activity patterns and the influence of extrinsic factors (e.g., environmental conditions, moonlight) have received much mo...
Article
Full-text available
The Antarctic and the surrounding Southern Ocean are currently subject to rapid environmental changes and increasing anthropogenic impacts. Seabird populations often reflect those changes and so act as indicators of environmental variability. Their population trends may provide information on a variety of environmental parameters on the scale of ye...
Article
Full-text available
The conservation of migratory marine species, including pelagic seabirds, is challenging because their movements span vast distances frequently beyond national jurisdictions. Here, we aim to identify important aggregations of seabirds in the North Atlantic to inform ongoing regional conservation efforts. Using tracking, phenology, and population da...
Poster
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Fildes Peninsula and Ardley Island, King George Island, South Shetland Islands, represent one of the largest ice-free areas in the Maritime Antarctic. The region is characterized by a high biodiversity and is a reproduction site for fourteen bird species. Based on seabird monitoring data collected between 1979/80 and 2019/20 divergent population tr...
Poster
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The Fildes Peninsula, King George Island, South Shetland Islands, hosts six permanent stations and a gravel runway. Due to the vicinity to South America and the good accessibility for aircrafts and ships the region represents the main logistic hub for the South Shetland Islands and the Antarctic Peninsula. Data on ship and air traffic on Fildes Pen...
Article
Full-text available
The complete genome sequence of a novel megrivirus of the family Picornaviridae was determined from nucleic acid extracted from a pool of six faecal specimens of Adélie penguins. The samples were collected near Bellingshausen Station, King George Island of the South Shetland Islands, Antarctica. Penguin megrivirus is the first megrivirus with a pre...
Article
Full-text available
Antarctic marine ecosystems undergo enormous changes, presumably due to climate change and fishery. Unmanned aerial vehicles (UAVs) have an unprecedented potential for measuring these changes by mapping indicator species such as penguins even in remote areas. We used a battery-powered fixed-wing UAV to survey colonies along a 30-km stretch of the r...
Technical Report
Full-text available
Ökologisches Monitoring des Rückbaus der Autobahn A 4 (Wirksamkeitsuntersuchungen) Die Aufhebung von Barrierewirkung und Habitatfragmentierungen sowie immissionsbedingter und sonstiger Randeffekte auf die angrenzenden Ökosysteme infolge des Rückbaus der Bundesautobahn 4 im Leutratal bei Jena wurden untersucht. Die quantitative Datenaufnahme (Stau...
Article
Full-text available
A recent increase in the use of unmanned aerial vehicles (UAVs)—also known as remotely piloted aircraft (RPA)—in the Antarctic in private, commercial and scientific sectors suggests that operational guidelines are urgently needed. One of the factors inhibiting adoption of such guidelines is the lack of knowledge about the impact of UAVs on wildlife...
Article
Full-text available
The personal, commercial, and scientific use of unmanned aerial systems (UAS) in Antarctica has increased dramatically in recent years. Due to the potential benefits for, and negative impacts to, sensitive Antarctic wildlife, the use of UAS (also called unmanned aerial vehicles (UAV), remotely piloted aircraft systems (RPAS) or drones) is a widely...
Poster
Full-text available
Fildes Peninsula, King George Island, South Shetland Islands, Antarctic, is characterized by a high biodiversity and hosts six permanent stations and an airport turning the region into a major logistic hub for the Antarctic Peninsula. It is the scene of a multitude of human activities including scientific research, station operations, transport log...
Poster
Full-text available
During the past decades, the western and northern parts of the Antarctic Peninsula (Maritime Antarctic) have experienced the largest warming trend of atmospheric temperatures. This climatic change strongly affects biotic and abiotic components of Antarctic ecosystems on different levels. Fildes Peninsula and Ardley Island, King George Island, South...
Article
Full-text available
In the present paper, we compare how the kelp gull, Larus dominicanus, utilizes various nest building materials, particularly vascular plants, bryophytes, lichens and other components, in the Fildes Peninsula area (King George Island) and on the Argentine Islands area. In both areas, nest material primarily consisted of the Antarctic hairgrass (Des...
Article
Full-text available
Tardigrada in Antarctic regions are poorly known. The aim of this study was to examine for tardigrades the nests material of the kelp gull (Larus dominicanus Lichtenstein, 1823) in maritime Antarctic and discuss the possible ways of migration and dispersion of tardigrades by birds. We also discuss the influence of bird’s guano on the communities of...
Article
Full-text available
A novel RNA virus was detected in a fecal sample collected from the Antarctic fur seal (Arctocephalus gazella) in King George Island, Antarctica. The almost-complete genome sequence reveals two open reading frames and a dicistrovirus-like gene order.
Book
Full-text available
In the context of the already observed population changes at specific time intervals and the shift in penguin breeding sites because of global warming and the fluctuations in availability of food, full-scale monitoring of Antarctic penguins seems reasonable. This report should contribute to choosing among the possible methods. Given the large numbe...
Book
Full-text available
The Fildes Region (King George Island, South Shetland Islands), consisting of the Fildes Peninsula, the neighbouring Ardley Island and all larger, nearby islands, is one of the largest ice-free regions in maritime Antarctica and has a relatively high level of biodiversity. This area also represents the logistical centre of the Antarctic Peninsula w...
Article
Full-text available
Seabirds show remarkable variability in migration strategies among individuals and populations. In this study we analysed 47 migrations of 28 brown skuas Catharacta antarctica lonnbergi breeding on King George Island in the Maritime Antarctic. Brown skuas from this population used a large area during the non-breeding period north of 55°S, including...
Article
Full-text available
Upwelling regions are highly productive habitats targeted by wide-ranging marine predators and industrial fisheries. In this study, we track the migratory movements of eight seabird species from across the Atlantic; quantify overlap with the Canary Current Large Marine Ecosystem (CCLME) and determine the habitat characteristics that drive this asso...
Poster
Full-text available
The Fildes Peninsula in the south-west of King George Island, South Shetland Islands, Antarctic (62°08′ – 62°14′S, 59°02′ – 58°51′W) represents one of the largest ice-free areas in the maritime Antarctic and is characterized by a high biodiversity. At the same time, the Fildes Peninsula hosts six Antarctic stations and an airstrip turning the area...
Article
Full-text available
The Ardley Cove area (located on the Maxwell Bay shoreline, Fildes Peninsula, King George Island, Antarctica) is characterized not only by its high biodiversity, but also by a high density of scientific stations, making it potentially one of the most impacted areas of Antarctica. In order to assess the source, contamination levels, distribution and...
Article
Full-text available
Marine ecosystems face a variety of threats induced by environmental changes and anthropogenic activities. Seabirds are predators often used as indicator species to monitor the status and health of their communities and the environment. Here, we present the results from a 35-year monitoring time series of Brown Skuas (Catharacta antarctica lonnberg...
Article
Full-text available
In migratory animals, protandry (earlier arrival of males on the breeding grounds) prevails over protogyny (females preceding males). In theory, sex differences in timing of arrival should be driven by the operational sex ratio, shifting toward protogyny in female-biased populations. However, empirical support for this hypothesis is, to date, lacki...
Article
Full-text available
Unmanned aerial vehicles (UAVs) have become a useful tool in polar research. While their performance is already proven, little is known about their impact on wildlife. To assess the disturbance caused on the penguins, flights with a UAV were conducted over an Adélie penguin (Pygoscelis adeliae) colony. Vertical and horizontal flights were performed...
Conference Paper
Full-text available
A detailed study of the interaction between the kelp gull (Larus dominicanus) and Antarctic hair grass (Deschampsia antarctica Desv.) in the Argentine Islands region provided some evidence for the existence of strong relations between these species (Parnikoza et al., 2012; 2014). The main reason for this might be the fact that both hair grass and k...
Conference Paper
Full-text available
Through recent, as well as long-term changes in polar ecosystems, potential impacts on breeding species of the Antarctic are inevitable. This study aims to distinguish environmental factors that drive temporal changes in the breeding pair numbers of bird species in the maritime Antarctic. Long term monitoring of breeding pair numbers yielded time s...
Data
Bird vocalisations are often essential for sex recognition, especially in species that show little morphological sex dimorphism. Brown skuas (Catharacta antarctica lonnbergi), which exhibit uniform plumage across both sexes, emit three main calls: the long call, the alarm call and the contact call. We tested the potential for sex recognition in bro...
Article
Full-text available
The historical data of phytoplankton and chlorophyll a (Chl a) (1990–2002) obtained during the Chinese National Antarctic Research Expedition (CHINARE) in the Prydz Bay have been integrated. The results showed that the temperature, salinity, nutrients, and oxygen of seawater changed when El Niño/La Niña occurred. The variation of biological communi...
Conference Paper
Full-text available
Pelagic seabirds spend most of their life, often except the breeding period, on the open ocean far off the continental coasts. Therefore it has long been difficult to investigate the ecology of their entire life history. For our study we analyse 47 Brown Skua (Stercorarius antarcticus lonnbergi) migration cycles from 28 individuals breeding on King...
Article
Full-text available
The study provides one of the first lines of evidence showing linkages between Antarctic phytoplankton abundance and composition in response to ENSO, based on historical reconstruction of sediment biomarkers. In addition to sediment biomarkers, field measured and remote sensing data of phytoplankton abundance were also recorded from Prydz Bay, East...
Article
Full-text available
El Nio-Southern Oscillation (ENSO) has affected penguins and their habitats in the western Antarctic Peninsula. We used both historical penguin population dynamics data (1980-2012) and sedimentary lipids in penguin droppings (1916-2001) on Ardley Island to examine the responses of the Antarctic ecosystem to ENSO (El Nio/La Nia) events. The results...
Chapter
Full-text available
Since the inception of the Antarctic Treaty, numerous regulations for environmental protection were adopted by the Treaty parties to minimise negative environmental impacts of human activity. Nevertheless, the concentration of a variety of human activities in some Antarctic regions leads to a conflict of interest. The Fildes Peninsula on King Georg...
Conference Paper
Full-text available
Increasing pressure from human activities leads to negative impacts on the Antarctic terrestrial environment. The southwestern part of King George Island, South Shetland Islands, is characterized by high biodiversity and rich fossil deposits. The operation of six permanent stations and an airstrip turns the Fildes Peninsula into a superregional log...
Book
Full-text available
With its airport and a high density of stations and field huts, the Fildes Peninsula forms the logistical centre of King George Island (South Shetland Islands) and the logistical hub for the northern Antarctic Peninsula area as a whole. Due to the severe overlapping of various interests, such as research, the conservation of flora and fauna, the pr...
Article
Lipid biomarkers in AD2 penguin droppings-amend soil core from the Ardley Island, Western Antarctic, were dated using 210Pb. Changes in the fatty acid ratios of nC18:2/nC18:0 from the penguin droppings reflect climate changes coincident with ENNO events during 1931–2006. The occurrence of the minimum values in the depth of 2–3 and 6–7 cm are consis...
Article
Full-text available
The Antarctic terrestrial environment is under increasing pressure from human activities. The Fildes Region is characterized by high biodiversity, but is also a major logistic centre for the northern Antarctic Peninsula. Different interests, from scientific research, nature conservation, protection of geological and historical values, station opera...
Book
Full-text available
We investigated the possibility of monitoring penguin colonies across the Antarctic using remote sensing by satellites. We selected six test sites with a number of penguin colonies, focussing on the species Pygoscelis adeliae (Adélie penguin) and Pygoscelis papua (gentoo penguin). The remote sensing platforms used were optical systems with medium (...
Article
Full-text available
The management objectives of Robben Island, a World Heritage Site, include the maintenance of the island's ecosystem. Yet little is known about the size and impacts of the island's population of introduced European rabbits (Oryctolagus cuniculus). We present the first quantitative assessment of the Robben Island rabbit population. Population estima...
Article
Full-text available
Seabirds in seasonal environments are often long-distance migrants and, for many species and populations, their ranges throughout the non-breeding period are unknown. As conditions during the non-breeding season often affect subsequent performance, the choice of migration strategy can have major implications for timing of breeding and success and,...
Conference Paper
Full-text available
The Fildes Region, King George Island, is characterized by a high biodiversity and accommodates six permanent stations and an airport. Therefore it plays a key role as the logistic centre for the Antarctic Peninsula. Different interests like scientific research, conservation of flora and fauna, protection of places of geological and historical valu...
Article
Full-text available
A population of feral pigeons, Columba livia var. was conducted in the city of Jena, Germany, from July to December 2007. Daily censuses were conducted by walking ten transects in a selected area of the city, five transects in built up areas and five in the suburbs. Pigeon population density was higher in urban areas than in suburbs but differences...
Article
Full-text available
Se estudió una población de palomas domésticas, Columba livia var. en la ciudad de Jena, Alemania, entre julio y diciembre de 2007, mediante censos diarios en diez transectos de un sector de la ciudad, cinco en áreas urbanas y cinco en áreas suburbanas. La densidad poblacional de palomas en las zonas urbanas resultó mayor que en las zonas suburbana...
Article
Full-text available
We used video-observations of nesting burrows to determine if periodic weighing of chicks (once per day) accurately captured feeding events in Wilson's Storm-Petrel (Oceanites oceanicus). We found that, compared with videorecordings, periodic weighing and correction for metabolic loss correctly estimated whether a chick had been fed for 99.3% of al...
Article
Full-text available
The light-mantled sooty albatross is a medium-sized albatross with a circumpolar distribution in the Southern Ocean. The known breeding sites are restricted to Islands in sub-Antarctic latitudes close to the Antarctic convergence between 46° and 53°S. In the austral summer season 2008/2009 we discovered a new breeding colony with at least two confi...
Article
Full-text available
Seabirds show a range of patterns of sexual size dimorphism and sex-specific parental investment, but the underlying causes remain poorly understood. The aim of the present study was to test two longstanding hypotheses of parental investment in a sexually monomorphic species, Wilson’s storm petrel Oceanites oceanicus, namely that males attend chick...
Article
Whilst we have now a good understanding how past glaciation influenced species at the northern hemisphere, our knowledge of patterns and modes of speciation is far more limited for the southern hemisphere. We provide mtDNA based data on the phylogeography of a circumpolar distributed southern hemisphere seabird group-the southern skua complex (Cath...
Book
Full-text available
Fildes Peninsula, as the logistical centre of King George Island (South Shetland Islands, Antarctica) has an airport and a high density of research stations and field huts. Various different interests overlap in the region: science, conservation of flora and fauna, protection of places of geological and historical value, station operations, transpo...
Article
Full-text available
Recent studies on mate-quality recognition in passerines showed that females use subtle differences in sound production to assess males. We analysed long calls of brown skuas, Catharacta antarctica lonnbergi, to test whether vocal performance could serve as an indicator of individual quality in a nonpasserine species. Measurements of vocal performa...
Article
Full-text available
Compilation of existing population data through the 1999/2000 season for Northern Giant Petrels Macronectes halli and Southern Giant Petrels M. giganteus indicates that the total breeding population of Northern Giant Petrels is approximately 11 210 pairs, an increase of 30% since an earlier estimate. The total breeding population for Southern Giant...
Article
Full-text available
Bird vocalisations are often essential for sex recognition, especially in species that show little morpho-logical sex dimorphism. Brown skuas (Catharacta ant-arctica lonnbergi), which exhibit uniform plumage across both sexes, emit three main calls: the long call, the alarm call and the contact call. We tested the potential for sex recognition in b...
Article
Full-text available
Tourism is a rapidly growing industry in the Antarctic, particularly on King George Island where wildlife areas, research stations, or their vicinity are frequently visited. A comprehensive assessment of the environment and human activities in the Fildes Peninsula region was conducted, and spatiotemporal patterns were analyzed. Additionally, opinio...
Article
Full-text available
We studied how environmental conditions affect reproduction in sympatric skua species that differ in their reliance on marine resources: the exclusively marine foraging south polar skua Catharacta maccormicki, the terrestrially foraging brown skua C. antarctica lonnbergi and mixed species pairs with an intermediate diet. Egg size, clutch asymmetry...
Data
We studied how environmental conditions affect reproduction in sympatric skua species that differ in their reliance on marine resources: the exclusively marine foraging south polar skua Catharacta maccormicki, the terrestrially foraging brown skua C. antarctica lonnbergi and mixed species pairs with an intermediate diet. Egg size, clutch asymmetry...
Article
Full-text available
Hybridisation between South polar skua (C. maccormicki) and Brown skua (C. antarctica lonnbergi) in the area of the Antarctic Peninsula is known at least since the beginning of the last century but no survey has been done so far. This paper reviews information on the species composition of skua colonies of more than 10 pairs in the Antarctic Penins...
Article
Full-text available
This study investigated chick growth in a pelagic Antarctic seabird, the South Polar Skua (Catharacta maccormicki). The factors food supply, weather and hatching date were analysed in a population of 54 breeding pairs at King George Island/South Shetland Islands. Food supply was manipulated by offering fish corresponding to 20% of daily energy dema...
Article
Full-text available
Foraging decisions depend not only on simple maximization of energy intake but also on parallel fitness-relevant activities that change the forager's ‘state’. We characterized patch use and patch leaving rules of a top-predatory seabird, the Brown Skua ( Catharacta antarctica lonnbergi ), which during its reproductive period in the Antarctic establ...