Results 51 to 60 of about 45,812 (163)
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 +5 more
wiley +1 more source
Ecology and Evolution, Volume 15, Issue 6, June 2025.In this study we examined the habitats, nesting sites, and survival rates of free‐living colonies through personal monitoring of nest sites in Munich (N = 107) and the coordination of Citizen Science monitoring across Germany (N = 423). On average, only 12% of the personally monitored colonies in Munich survived annually, a figure that aligns well with
Benjamin Rutschmann +2 more
wiley +1 more source
EnergiesThe European Commission has recently announced two guiding principles for EU product policy: First, product policy shall ensure that the performance of front-runner products in terms of sustainability becomes the norm, and second, the effectiveness of ...
Jens Schuberth +6 more
doaj +1 more source
Beitrag des ökologischen Landbaus zum Meeresumweltschutz [PDF]
, 2002 siehe ...
Paulsen, H-M, Schnug, E, Volkgenannt, U
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Wildlife Biology, Volume 2025, Issue 3, May 2025.Psittaciformes are among the most threatened birds, and population size and trend estimates are needed to aid conservation. The burrowing parrot Cyanoliseus patagonus is undergoing substantial changes in its population size, due to habitat degradation, trapping for the pet trade, and persecution as crop pest.
Juan F. Masello +8 more
wiley +1 more source
Biology Open, 2017 Two different measurement techniques were applied to study the attachment of the smooth foot pads of the Madagascar hissing cockroach Gromphadorhina portentosa.
Oliver Betz +9 more
doaj +1 more source
The role of pollinator attracting scent in the sexually deceptive orchids Ophrys chestermanii, O. normanii and O. tenthredinifera [PDF]
, 2008 Sexual deception of male bees is one of the most remarkable mechanisms of pollination (Ackermann 1986, Proctor & al. 1996). Flowers of the orchid genus Ophrys mimic females of their pollinator species, usually bees and wasps, to attract males, which try ...
Ayasse, Manfred +9 more
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Addressing Challenges in Simulating Inter–Annual Variability of Gross Primary Production
Journal of Advances in Modeling Earth Systems, Volume 17, Issue 5, May 2025.Abstract A long‐standing challenge in studying the global carbon cycle has been understanding the factors controlling inter–annual variation (IAV) of carbon fluxes, and improving their representations in existing biogeochemical models. Here, we compared an optimality‐based model and a semi‐empirical light use efficiency model to understand how current ...
Ranit De +34 more
wiley +1 more source
Diversity and distribution of spiders (Arachnida: Araneae) in dry ecosystems of North Rhine-Westphalia (Germany) [PDF]
, 2010 The present study provides a robust data set for ecological planning and conservation of dry ecosystems in western Germany in general and North Rhine-Westphalia in particular.
Buchholz, Sascha +1 more
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