Results 41 to 50 of about 55,247 (248)

Effects of drought on carbonyl sulfide exchange in four plant species

open access: yesPlant Stress
The trace gas carbonyl sulfide (COS) is used for estimating gross primary productivity at ecosystem level (GPP), as the net CO₂ flux is confounded by ecosystem respiration.
Felix M. Spielmann   +5 more
doaj   +1 more source

ÖKOLOGISCHE ERZIEHUNG IN DER ENZYKLIKA LAUDATO SI’: KATECHETISCHE IMPLIKATIONEN

open access: yesForum Teologiczne, 2017
Die Enzyklika Laudato si’ von Papst Franziskus ist ein wertvolles Dokument, das den aktuellen Wissensstand über die Ökologie widerspiegelt und die Positionen der Kirche zu verschiedenen Aspekten dieser Frage thematisiert. Nach Auffassung des Papstes ist
Michał Borda, Roman Ceglarek
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]

open access: yes, 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  

What are the important landscape components for habitat selection of the ortolan bunting Emberiza hortulana in northern limit of range? [PDF]

open access: yes, 2015
Ortolan buntings Emberiza hotulana have undergone one of the most severe population declines of any European farmland bird over the last thirty years. The aim of this study was to find out which habitat features, including crop characteristics,
Elts, Jaanus   +2 more
core   +2 more sources

Forest Heterogeneity by Chain Saw: How Between‐Patch Variation in Old Growth Attributes Changes the Metacommunities of Beetles

open access: yesEcology Letters, Volume 29, Issue 3, March 2026.
Metacommunity theory has expanded our understanding of how spatial dynamics and local interactions influence species communities, but we lack empirical studies specifically in terrestrial habitats testing which archetype is most important. In a replicated design we experimentally enhanced structural between‐patch heterogeneity in homogeneous production
Oliver Mitesser   +28 more
wiley   +1 more source

Assessing spider community structure in a beech forest: Effects of sampling method

open access: yesEuropean Journal of Entomology, 2000
The spider community of a beech forest on limestone was studied for one year using four sampling techniques: emergence traps, pitfall traps, soil samples, and arboreal eclectors. 87 spider species were recorded.
Klaus HÖVEMEYER, Gabriele STIPPICH
doaj   +1 more source

Peering into the world of wild passerines with 3D‐SOCS: Synchronized video capture and posture estimation

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 2, Page 339-356, February 2026.
Abstract Collection of large behavioural data‐sets on wild animals in natural habitats is vital in ecology and evolution studies. Recent progress in machine learning and computer vision, combined with inexpensive microcomputers, has unlocked a new frontier of fine‐scale markerless measurements.
Michael Chimento   +3 more
wiley   +1 more source

Organic foods in public catering: Organisational development or a locomotive to boost organic sales [PDF]

open access: yes, 2009
In many countries public procurement policies of organic foods have become a popular instrument to increase the sale of organic produce. However, unlike the relatively uncomplicated “organic” change process in private households, the processes related to
Mikkelsen, Bent E.
core  

Genetic and phenotypic comparison of natural and translocated populations of a pond‐breeding amphibian

open access: yesConservation Science and Practice, Volume 7, Issue 12, December 2025.
The translocations resulted in populations that do not differ much from natural populations in their genetic structure and fitness‐related life history traits. Abstract Translocations are a commonly used method in conservation practice and are often viewed as successful if a new population persists.
José F. Meléndez‐Cal‐y‐Mayor   +6 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)

open access: yesArachnologische 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

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