Results 41 to 50 of about 5,342,723 (255)

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

The relationship between farm size and productivity: empirical evidence from the Nepalese mid-hills [PDF]

This paper examines the farm size and productivity relationship using data from Nepalese mid hills. The household data used has been drawn from a survey conducted by the author and financed by the Norwegian University of Life Science.
Thapa, Sridhar
core   +2 more sources

STIMULATING THE ATTRACTION OF INVESTMENTS IN THE PROCESSING SECTOR – A NECESSITY IN THE CONTEXT OF EUROPEAN MILK MARKET LIBERALIZATION [PDF]

Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2014
A main challenge for the players on the world dairy market is to efficiently respond to the changes of the local markets characteristics, in the context of an increasingly fierce competition for the raw milk obtained on the farms.
Mariana GRODEA
doaj  

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

Advanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan, Litao Wang, Tuuli‐Marjaana Koski, Lizhe An, Thomas Efferth, Yujie Fu   +5 more
wiley   +1 more source

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications

Advanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta, Sushmit Sen, Nilanjan Dey, Amrita Chatterjee, Ananya Sadhu, Sudipta Sarkar, Pradip K. Maji   +6 more
wiley   +1 more source

Impact of farm size on the function of landscape-level payments for ecosystem services: an agent-based model study

Environmental Research Communications
Reducing pesticide use and restoring biodiversity are among the most pressing environmental challenges. Enhancing natural pest control ecosystem services through the integration of non-crop habitats (NCH) offers promising potential, creating a positive ...
Vince Wu, Andrew Reid Bell, Wei Zhang
doaj   +1 more source

TH/TRs–COL11A2 Axis Mediates Loss of a Differentiated Astrocyte State in Hypogyrified Brains

Advanced Science, EarlyView.
Using a gyrencephalic congenital hypothyroidism pig model, this study reveals cerebral atrophy and cortical hypogyrification. Single‐cell sequencing identifies astrocytes as major TH‐responsive cells, with the COL11A2‐enriched Astro‐2 state nearly absent.
Ying Zhang, Xiao Wang, Hongyan Ma, Pengcheng Lyu, Shuangjie Tian, Ruojun Zong, Jiani Chen, Gang Ren, Yongjiang Yang, Zichen Yang, Guosong Qin, Naishi Li, Yanfang Wang, Jianwei Jiao, Jianguo Zhao   +14 more
wiley   +1 more source

Stress and the Farmer’s Profile: Demographic and Structural Divides

European Countryside
This study aimed to examine how stressors experienced by farmers varied depending on demographic and structural factors to identify the most vulnerable farmer groups.
Vveinhardt Jolita, Žukovskis Jan
doaj   +1 more source

Can we estimate farm size from field size? An empirical investigation of the field size to farm size relationship.

Agricultural Systems
CONTEXT: Farm size is a key indicator associated with environmental, economic, and social contexts and outcomes of agriculture. Farm size data is typically obtained from agricultural censuses or household surveys, but both are usually only available in infrequent time intervals and at aggregate spatial scales.
Jänicke, Clemens, Wesemeyer, Maximilian, Chiarella, Cristina, Lakes, Tobia, Levers, Christian, Meyfroidt, Patrick, Müller, Daniel, Pratzer, Marie, Rufin, Philippe   +8 more
openaire   +3 more sources