Results 41 to 50 of about 1,620 (198)

Conforto térmico de bovinos da raça nelore a pasto sob diferentes condições de sombreamento e a pleno sol Thermal comfort of nelore bovine in pasture under several lighting conditions

Engenharia Agrícola, 2009
Principalmente em regiões de clima quente, a produção bovina sob condições de pasto pode ser melhorada com o uso de sombra natural para minimizar o estresse por calor. Desse modo, o objetivo do presente estudo foi avaliar o efeito do estresse térmico por
Franciele C. Navarini, Elcio S. Klosowski, Alessandro T. Campos, Rodrigo de A. Teixeira, Clécio P. Almeida   +4 more
doaj   +1 more source

Macroevolutionary processes in turtles (Testudines): a view from biomic specialization and historical climatic changes

Frontiers in Ecology and Evolution
The resource-use hypothesis proposed by Elisabeth S. Vrba suggests that lineages display varying tendencies toward generalism or specialization in biome occupancy, with a tendency towards the accumulation of specialists due to their higher rate of ...
Juan S. Thomas, Sara Gamboa, Manuel Hernández Fernández, Manuel Hernández Fernández, Oscar Murillo, Jonathan S. Pelegrin   +5 more
doaj   +1 more source

A new instrument for stable isotope measurements of ¹³C and ¹⁸O in CO₂ – instrument performance and ecological application of the Delta Ray IRIS analyzer [PDF]

Atmospheric Measurement Techniques, 2017
We used the recently developed commercially available Delta Ray isotope ratio infrared spectrometer (IRIS) to continuously measure the CO2 concentration c and its isotopic composition δ13C and δ18O in a managed beech forest in central Germany.
J. Braden-Behrens, Y. Yan, A. Knohl, A. Knohl   +3 more
doaj   +1 more source

Human Bioclimatology

, 1998
openaire   +2 more sources

Tracking Water Dynamics of a Temperate Forest Under Drought and Non‐Drought Conditions Using Active and Passive Microwave and Optical Remote Sensing

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Water status, water dynamics, and ecohydrological resilience of a protected German beech forest during the 2018–2020 multi‐year drought are assessed using over six years of multi‐frequency remote sensing data, integrating active, passive, and optical sensors with varying canopy penetration depths, highlighting the importance of monitoring ...
Florian M. Hellwig, Anke Fluhrer, Clémence Dubois, Konstantin Schellenberg, David Chaparro, Markus Zehner, Anne Klosterhalfen, María Piles, Christiane Schmullius, Harald Kunstmann, Thomas Jagdhuber   +10 more
wiley   +1 more source

Continuous Stem Water Potential Measurements With Microtensiometry Reveal Species Identity and Soil Matric Potential Control of Stem Water Potential in Temperate Forests

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Water potential gradients govern water fluxes, and plants respond with species‐specific hydraulic traits that influence ecosystem function. While understanding these traits is key to predicting vegetation responses to climate change, traditional methods like the pressure chamber limit temporal resolution and continuity.
Ruth‐Kristina Magh, Sharath Shyamappa Paligi, Phillip Papastefanou, Anne Klosterhalfen, Christian Ammer, Matthias Beyer, Maren Dubbert, Simon Haberstroh, Clara Rohde, Christiane Werner, Anke Hildebrandt   +10 more
wiley   +1 more source

Birch Transpiration Is Not the Main Reason for Insufficient Water Levels in a Rewetted Bog

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Natural bogs have high water level (WL) that prevents peat decomposition and promotes bog‐specific vegetation. Especially in rewetted bogs, increasing tree encroachment is observed in combination with low WL. Simultaneously, a general shift in vegetation and microform distribution is visible.
Carla Welpelo, Arndt Piayda, Bärbel Tiemeyer, Alexander Knohl, Adrian Dahlmann, Maren Dubbert   +5 more
wiley   +1 more source

Linking sap flow and tree water deficit in an unmanaged, mixed beech forest during the summer drought 2022

Plant Biology, Volume 28, Issue 3, Page 747-761, April 2026.
Sap flow and reversible stem shrinkage upon water depletion are strongly correlated under extreme drought conditions, but they respond differently to drought and cannot be used interchangeably when assessing tree response to drought. Abstract Temperate mixed forests are currently experiencing severe drought conditions and face increased risk of ...
L. S. Donfack, M. Mund, F. Koebsch, P. Schall, M. G. Heidenreich, D. Seidel, C. Ammer   +6 more
wiley   +1 more source

Implementation of an Animal Bioclimatology Mobile Laboratory, as a Pedagogic strategy to the Animal Science Course of Faculdade de Ciências Agroambientais/FAGRAM

, 2008
O Curso de Zootecnia da Faculdade de Ciências Agro-Ambientais (Fagram), visando o aperfeiçoamento profissional, investiu na implementação de um Laboratório Móvel de Bioclimatologia Animal.
Souza, Claudia Teresa Vieira de, Rocha, José Carlos Coelho da   +1 more
core   +1 more source

Impact of Atmospheric Circulation on the Occurrence of Very Strong and Extreme Cold Stress in Poland

Quaestiones Geographicae, 2022
The primary objective of the study was the determination of the spatial and multiannual variability of occurrence of days with very strong and extreme cold stress in Poland according to the Universal Thermal Climate Index (UTCI), as well as determination
Owczarek Małgorzata, Tomczyk Arkadiusz M.   +1 more
doaj   +1 more source