14 Works

Institutioneller Kinderschutz in Krippe und Kita als Gelingensfaktor für Partizipation im pädagogischen Alltag

Dennis Epping & Jasmin Luthardt
Der Artikel thematisiert die Notwendigkeit eines institutionell verankerten Schutzkonzepts zur Wahrung und Umsetzung der Kinderrechte in Krippen und Kitas. Dies kann nur gelingen, wenn a) die pädagogischen Fachkräfte ihre pädagogischen Handlungen hinsichtlich Übergriffigkeit, Macht und Missbrauch reflektieren und b) die Partizipation der Kinder entsprechend der international und national geltenden Gesetze im Alltag umgesetzt wird. Im Anschluss stellen wir ein Modell des institutionellen Kinderschutzes für Krippen und Kitas (IKS) vor, welches der pädagogischen Praxis dahingehend Orientierung...

Population structure of Rosa spinosissima L. on the Frisian Islands and introgression from cultivated material

Eike Mayland-Quellhorst & Volker Wissemann
Rosa spinosissima L. is part of the highly dynamic coastal habitat of the Wadden Sea, between the coast of northwestern continental Europe and the Frisian Islands. Plants of this species grow clonally via root suckers to form large patches, which stabilize dunes and help to protect the islands and used for this purpose locally on the island Sylt. Rosa spinosissima plants are affected by both water and wind in their harsh environment, and are threatened...

Agent‐based modeling of the effects of forest dynamics, selective logging, and fragment size on epiphyte communities

Gunnar Petter, Gerhard Zotz, Holger Kreft & Juliano Sarmento Cabral
Forest canopies play a crucial role in structuring communities of vascular epiphytes by providing substrate for colonization, by locally varying microclimate, and by causing epiphyte mortality due to branch or tree fall. However, as field studies in the three-dimensional habitat of epiphytes are generally challenging, our understanding of how forest structure and dynamics influence the structure and dynamics of epiphyte communities is scarce. Mechanistic models can improve our understanding of epiphyte community dynamics. We present...

Nardus grasslands and wet heaths are affected differently by reintroduction of management and pH recovery

Leonie Mazalla, Gerhard Ludwig & Cord Peppler-Lisbach
Semi-natural habitats in temperate regions are local hotspots of biodiversity, but multiple stress-ors such as land-use change and atmospheric deposition pose a threat to the existence and function-ing of these ecosystems. We conducted a resurvey of Nardus grasslands and wet heaths in the Eifel mountains to monitor the development of these habitats under the influence of a long-term manage-ment regime and the above-mentioned stressors. Surveys of 50 plots of Nardus grasslands and 14 of wet...

Alternate patterns of temperature variation bring about very different disease outcomes at different mean temperatures

Charlotte Kunze, Pepijn Luijckx, Andrew L. Jackson & Ian Donohui
The dynamics of host-parasite interactions are highly temperature-dependent and may be modified by increasing frequency and intensity of climate-driven heat events. Here, we show that altered patterns of temperature variance lead to an almost order-of-magnitude shift in thermal performance of host and pathogen life history traits over and above the effects of mean temperature and, moreover, that different temperature regimes affect these traits differently. We found that diurnal fluctuations of ±3°C lowered infection rates and...

Data from: Drivers of global pre-industrial patterns of species turnover in planktonic foraminifera

Marina C. Rillo, Skipton Woolley & Helmut Hillebrand
Anthropogenic climate change is altering global biogeographical patterns. However, it remains difficult to quantify how bioregions are changing because pre-industrial records of species distributions are rare. Marine microfossils, such as planktonic foraminifera, are preserved in seafloor sediments and allow the quantification of bioregions in the past. Using a recently compiled data set of pre-industrial species composition of planktonic foraminifera in 3802 worldwide seafloor sediments, we employed multivariate and statistical model-based approaches to study spatial turnover...

Intraspecific trait variation alters the outcome of competition in freshwater ciliates

Sabine Floeder, Joanne Yong, Toni Klauschies, Ursula Gaedke, Tobias Poprick, Thorsten Brinkhoff & Stefanie Moorthi
Trait variation among heterospecific and conspecific organisms may substantially affect community and food web dynamics. While the relevance of competition and feeding traits have been widely studied for different consumer species, studies on intraspecific differences are more scarce, partly owing to difficulties in distinguishing different clones of the same species. Here, we investigate how intraspecific trait variation affects the competition between the freshwater ciliates Euplotes octocarinatus and Coleps hirtus in a nitrogen-limited chemostat system. The...

Data from: Putting vascular epiphytes on the traits map

Peter Hietz, Katrin Wagner, Flavio Nunes Ramos, Juliano Sarmento Cabral, Gerhard Zotz, Claudia Agudelo, Ana Maria Benavides, Manuel Cach Pérez, Catherine Cardelús, Nahelli Chilpa Galván, Lucas Costa, Rodolfo De Paula Oliveiras, Helena Einzmann, Rafael Farias, Valeria Guzmán Jacob, Michael Kessler, Catherine Kirby, Holger Kreft, Thorsten Krömer, Jamie Males, Samuel Monsalve Correa, Maria Moreno, Gunnar Petter, Casandra Reyes, Alfredo Saldaña … & Carrie Woods
Epiphyte trait data for the paper Hietz et al. 2021 Putting vascular epiphytes on the traits map. Journal of Ecology Plant functional traits impact the fitness and environmental niche of plants. Major plant functional types have been characterized by their trait spectrum, and the environmental and phylogenetic imprints on traits have advanced several ecological fields. Yet very few trait data on epiphytes, which represent almost 10% of vascular plants, are available. We collated >80,000 mostly...

Litter–trapping tank bromeliads in five different forests: carbon and nutrient pools and fluxes

Yonatan Aguilar Cruz, José G. García-Franco & Gerhard Zotz
Bromeliads are the most abundant litter–trapping plants in Neotropical forest canopies. By intercepting litter, bromeliads obtain and retain nutrients before they reach the pedosphere. Here, we analyzed the litter captured and stored by tank bromeliads (TB) in five different forests along an elevation gradient in Mexico. Among those forests, carbon and nutrient pools and nitrogen fluxes in TB were estimated in a mangrove (MF) and a semi–deciduous tropical forest (SDTF). The composition of the litter...

Comparative Phylogeography of Veronica spicata and V. longifolia (Plantaginaceae) Across Europe: Integrating Hybridization and Polyploidy in Phylogeography

Khan Gulzar, Buono Daniele, Bernhard Von Hagen, Petr A. Kosachev, Eike Mayland-Quellhorst, Sergei L. Mosyakin & Dirk C. Albach
Climatic fluctuations in the Pleistocene caused glacial expansion-contraction cycles in Eurasia and other parts of the world. Consequences of these cycles, such as population expansion and subsequent subdivision, have been studied in many taxa at intraspecific population level across much of the Northern Hemisphere. However, the consequences for the potential of hybridization and polyploidization are poorly understood. Here, we investigated the phylogeographic structure of two widespread, closely related species, Veronica spicata and Veronica longifolia, across...

Humpback whale song presence in the Atlantic sector of the Southern Ocean

Elena Schall, Karolin Thomisch, Olaf Boebel, Gabriele Gerlach, Sari Mangia Woods, Irene Roca & Ilse Van Opzeeland
Humpback whale song most likely fulfills a multi-purpose role in the humpback whale mating system including both inter- and intrasexual interactions. Humpback whale males produce most of their songs on the low-latitude breeding grounds, but evidences increase, showing that songs are also produced ‘off-season’ on the feeding grounds or during migration. This opens exciting opportunities to investigate migratory aggregations, study humpback whale behavioral plasticity and potentially even assign individual singers to specific breeding grounds. In...

Data from: Traits mediate niches and co-occurrences of forest beetles in ways that differ among bioclimatic regions

Ryan C. Burner, Jörg G. Stephan, Lukas Drag, Tone Birkemoe, Jörg Muller, Tord Snäll, Otso Ovaskainen, Mária Potterf, Juha Siitonen, Olav Skarpaas, Inken Doerfler, Martin M. Gossner, Peter Schall, Wolfgang W. Weisser & Anne Sverdrup-Thygeson
Aim To investigate the role of traits in beetle community assembly and test for consistency in these effects among several bioclimatic regions. We asked (1) whether traits predicted species’ responses to environmental gradients (i.e., their niches), (2) whether these same traits could predict co-occurrence patterns, and (3) how consistent were niches and the role of traits among study regions. Location Boreal forests in Norway and Finland, temperate forests in Germany. Methods We complied capture records...

Vascular epiphyte global distributions

Amanda Taylor, Gerhard Zotz, Patrick Weigelt, Lirong Cai, Dirk Karger, Christian König & Holger Kreft
Aim: Vascular epiphytes are ubiquitous components of wet tropical forests where they contribute substantially to local and regional plant diversity. While some basic epiphyte distribution patterns are relatively well studied, little effort has been made to understand the drivers responsible for constraining their global distribution. This study quantifies the substantial contribution of epiphytes to global gradients and centres of vascular plant diversity and explores whether epiphytes vary from terrestrial plants in relation to contemporary and...

Data from: Simulating climate change in situ in a tropical rainforest understorey using active air warming and CO2 addition

Maaike Y. Bader, Elodie Moureau, Nada Nikolić, Thomas Madena, Nils Koehn & Gerhard Zotz
Background: Future climate-change effects on plant growth are most effectively studied using microclimate-manipulation experiments, the design of which has seen much advance in recent years. For tropical forests, however, such experiments are particularly hard to install and have hence not been widely used. We present a system of active heating and CO2 fertilisation for use in tropical forest understoreys, where passive heating is not possible. The system was run for two years to study climate-change...

Registration Year

  • 2021
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Affiliations

  • Carl von Ossietzky University of Oldenburg
    14
  • University of Göttingen
    4
  • University of Würzburg
    3
  • University of Potsdam
    2
  • Swiss Federal Institute of Technology in Zurich
    2
  • University of Waikato
    1
  • University of Cambridge
    1
  • Philipp University of Marburg
    1
  • University of Oslo
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  • National Institute for Agro-Environmental Sciences
    1