Results 41 to 50 of about 49,115 (211)

Eine Perspektive zu interdisziplinären Ansätzen in der Chemotaxis(forschung)

Angewandte Chemie, Volume 137, Issue 47, November 17, 2025.
Chemotaxis ist die Bewegung individueller Agenten hin zu oder weg von einem chemischen Stimulus. Dieses Phänomen wird in den verschiedensten Fachbereichen untersucht, von Biologie hin zu Physik und auch im Ingenieurwesen. Dieses Perspektivpapier zielt darauf ab, neue Entwicklungen im Feld darzustellen und die Vereinheitlichung von Terminologie zu ...
Juliane Simmchen, Daniel Gordon, John MacKenzie, Ignacio Pagonabarraga, Christina C. Roggatz, Robert G. Endres, Zuyao Xiao, Benjamin M. Friedrich, Tian Qiu, Kevin J. Painter, Ramin Golestanian, Claudia Contini, Mehmet Can Ucar, Gilad Yossifon, Jens Uwe Sommer, Wouter‐Jan Rappel, Kirsty Y. Wan, Judith Armitage, Robert Insall   +18 more
wiley   +1 more source

Effects of cold winters and roost site stability on population development of non-native Asian ring-necked parakeets (Alexandrinus manillensis) in temperate Central Europe – Results of a 16-year census [PDF]

, 2018
Asian ring-necked parakeets (Alexandrinus manillensis, formerly Psittacula krameri, hereafter RNP) first bred in Germany in 1969. Since then, RNP numbers increased in all three major German subpopulations (Rhineland, Rhine-Main, Rhine-Neckar ...
Bauer, Andreas, Braun, Markus S, Braun, Michael P., Braun, Nicole, Bruslund, Nicole, Bruslund, Simon, Dreyer, Wolfgang, Franz, Detlev, Groß, Bernadette, Hubatsch, Markus, Kemper, Achim, Koch, Esther, Kragten, Steven, Krause, Tobias, Kremer, Phillip, Laucht, Silke, Nekum, Sven, Pârâu, Liviu G, Reinke-Beck, Mirjam I, Romero, Jana, Sauer-Gürth, Hedwig, Schidelko, Kathrin, Stiels, Darius, Walter, Claus, Wink, Michael   +24 more
core   +2 more sources

Perils of a Drifter: Larval Drift and Entrainment of Freshwater Catfish (Tandanus tandanus) in the Murray–Darling Basin, Australia

Austral Ecology, Volume 50, Issue 9, September 2025.
ABSTRACT The freshwater catfish Tandanus tandanus, a species with riverine populations listed as endangered in the Murray–Darling Basin, faces significant conservation challenges. Knowledge about early life stage dispersal remains limited, yet recent larval netting over two spawning seasons in the Macquarie River and adjoining irrigation channels fed ...
Joachim B. Bretzel, Jerom R. Stocks, Dylan E. van der Meulen, Lee J. Baumgartner, Craig Boys   +4 more
wiley   +1 more source

Martin Kreuels & Sascha Buchholz (2006): Ökologie, Verbreitung und Gefährdungsstatus der Webspinnen Nordrhein-Westfalens – Erste überarbeitete Fassung der Roten Liste der Webspinnen (Arachnida: Araneae)

Arachnologische Mitteilungen, 2006
book review: Martin Kreuels & Sascha Buchholz (2006): Ökologie, Verbreitung und Gefährdungsstatus der Webspinnen Nordrhein-Westfalens – Erste überarbeitete Fassung der Roten Liste der Webspinnen (Arachnida: Araneae).
Finch, Oliver-David
doaj   +1 more source

Demand of Research and Development in Organic Farming in Europe. Paper prepared for the FAO-Workshop "Research Methodologies in Organic Farming" at the Forschungsinstitut für biologischen Landbau (FiBL), October 1998 [PDF]

, 1999
This paper gives an overview of the state of research and extension in the countries of the EU and EFTA and a more detailed view of the situation in the German language region, including information on the transfer of research results into agricultural ...
Willer, Helga, Zerger, Uli
core  

Craniogenetic studies in Sus scrofa: With emphasis on the ‘orbitosphenoid’ problem

The Anatomical Record, Volume 308, Issue 7, Page 1931-1943, July 2025.
Abstract The orbitosphenoid is a skeletal element of the endocranium of extant mammals. However, it has also been described in many of their fossil ancestors. Craniogenetic studies show that it is composed of two types of bone: first, the cartilaginous ala orbitalis and parts of the trabecular plate are transformed by endochondral ossification; second,
Wolfgang Maier, Ulla Lächele, Irina Ruf
wiley   +1 more source

Hazards to Wild Birds Associated with Anthropogenic Structures and Human Activities—Results of a Long-Term Study in an Urbanised Area of the Alps

Birds
We analyse data from a rescue database collected at the Innsbruck Alpenzoo (Tyrol, Austria). The sample covers 33 years (1988–2020), and more than 5250 wild birds from 145 species originating from Innsbruck and the surrounding Inn Valley, one of the most
Christiane Böhm, Molinia Wilberger, Armin Landmann   +2 more
doaj   +1 more source

Beneath the buzz: Quantifying nest locations and densities of ground‐nesting wild bees (Hymenoptera: Anthophila)

Methods in Ecology and Evolution, Volume 16, Issue 7, Page 1334-1349, July 2025.
Abstract Wild bees (Hymenoptera: Anthophila) are important pollinators and essential for maintaining ecosystem health. The majority of bee species are ground‐nesting, and all bees spend most of their lifetime inside the nest. Still, most studies and monitoring schemes assess wild bees during flower visitation, allowing no conclusion about their nest ...
Christopher Hellerich, Alexandra‐Maria Klein, Michael Garratt, Michael Mix, Anne‐Christine Mupepele, Felix Fornoff   +5 more
wiley   +1 more source

Biodynamic approaches in research and development [PDF]

, 1999
The paper deals with particular aspects of biodynamics in research and development. It describes the basic background (anthroposophy), the biodynamic preparations with respect to research questions, the need for education and training is pointed out.
Raupp, Dr Joachim
core  

Besprechungen [PDF]

, 2013
Dieser Artikel ist eine Zusammenstellung von Buchbesprechungen über „Abschlussheft der Westfälischen Pilzbriefe; Bodendenkmalpflege im Kreis Höxter; Naturschutz in Nordhessen; Pflanzen der Äcker und ihre Ökologie; Naturschutz und Landschaftspflege in ...
Preywisch, Kurt
core   +1 more source