Results 61 to 70 of about 127,388 (353)

A test of the abundant‐center hypothesis for stream fishes

Ecography, EarlyView.
The abundant‐center hypothesis (ACH) provides a conceptual model for predicting range‐wide distributions of species abundance, suggesting that abundance peaks in the center of the geographic range and declines towards range edges. Empirical studies testing the ACH and its subsequent derivations predominantly occurred in terrestrial systems and reported
Matthew L. W. Zink, Brandon K. Peoples, Julian D. Olden, Lily M. Thompson, William K. Annis, Stephen R. Midway   +5 more
wiley   +1 more source

Global irrigation water demand: Variability and uncertainties arising from agricultural and climate data sets [PDF]

, 2008
Agricultural water use accounts for around 70% of the total water that is withdrawn from surface water and groundwater. We use a new, gridded, global-scale water balance model to estimate interannual variability in global irrigation water demand arising ...
Douglas, Ellen M, Fekete, Balazs M, Frolking, Steve, Schumann, Andreas H, Vorosmarty, Charles, Wisser, Dominik   +5 more
core   +2 more sources

Climatic resilience after extreme drought in Mediterranean shrubland plant communities

Ecography, EarlyView.
Extreme climatic events are increasing with climate change, producing changes in communities' climatic characterization. So, mismatches (climatic disequilibrium, CD) between climatic conditions inferred from species' requirements (community inferred climate, CIC) and macroclimate may undergo changes with extreme climatic events.
Raquel Díaz‐Borrego, Francisco Lloret, Luciana Jaime, Jordi Margalef‐Marrase, José Miguel Moya‐Pérez, María Ángeles Pérez‐Navarro   +5 more
wiley   +1 more source

The hydrology of a small fish pond at the University of Agriculture, Makurdi Experimental Fish Farm [PDF]

, 2001
The monthly and seasonal water requirements of a small fish pond (0.068ha; maximum capacity of 613.83m super(3)) at the University of Agriculture, Makurdi Fish Farm (Benue, Nigeria) were determined during the period of February to August 1996.
Adegoye, M.S., Akoh, J.I., Ogbe, F.G, Takwa, K.T.   +3 more
core  

Water balance components of the potential agricultural grabens along the Rift Valley in northern Ethiopia [PDF]

, 2019
Region: Ethiopia's Rift Valley. Focus: matching agricultural water demand and supply is a growing policy challenge in drylands. We investigated the water balance components in Raya (3507 km(2)) and Ashenge (80.5 km(2)) grabens. The rainfall depth, river
Annys, Sofie, Asfaha, Tesfaalem Ghebreyohannes, Deckers, Jozef, Demissie, Biadgilgn, Frankl, Amaury, Gebregergs, Hailemariam Meaza, Gebresamuel, Girmay, Jacob, Miro, Nyssen, Jan, Poesen, Jean, Raes, Dirk, Van Eetvelde, Veerle, Zenebe, Amanuel   +12 more
core   +3 more sources

Front Matter: Volume 11149 [PDF]

Remote Sensing for Agriculture, Ecosystems, and Hydrology XXI, 2016
Introduction - This proceedings volume contains papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XIV. The conference was part of the 19th International Symposium on Remote Sensing sponsored by SPIE - The International Society for Optical Engineering.
Neale, CMU, MALTESE, Antonino
openaire   +10 more sources

Seascape configuration determines spatial patterns of seabird‐vectored nutrient enrichment to coral reefs

Ecography, EarlyView.
Pelagic‐feeding seabirds deliver nutrient subsidies that enhance the productivity, biodiversity, and resilience of terrestrial and marine ecosystems, particularly in nutrient‐poor tropical environments. However, the biogeophysical variables governing the fluxes of these nutrients within and among interconnected ecosystems remain poorly understood.
Courtney E. Stuart, Simon J. Pittman, Kostantinos A. Stamoulis, Cassandra E. Benkwitt, Hannah E. Epstein, Nicholas A. J. Graham, Andrew C. Smith, Jack H. Lacey, Kalia S. I. Bistolas, Jayna L. DeVore, Simon Ducatez, Lisa M. Wedding   +11 more
wiley   +1 more source

Analysis of maximum flood records in the arid environment of Saudi Arabia

Geomatics, Natural Hazards & Risk, 2020
A collection of rainfall data and flood records for ephemeral channels in the Kingdom of Saudi Arabia (KSA) provided a unique opportunity to analyze the extreme records in such arid environment. Data of 3121 records were collected.
Hatem A. Ewea, Nassir S. Al-Amri, Amro M. Elfeki   +2 more
doaj   +1 more source

Agricultural and Biological Engineering / Eco-Hydrology - Purdue University

, 2011
The graduate student employs multiple types of data to develop and validate a new application of an existing model, SWAT, traditionally used in assessing environmental impacts. Many of these data types are generated by other students and, as no standardized policies or procedures for documenting, describing or organizing the data are in place, it is ...
Jake Carlson
openalex   +6 more sources

From waste to resource: Garlic peel‐derived proteases (Allium sativum) for nematode control

Environmental Progress &Sustainable Energy, EarlyView.
Abstract This study aimed to prepare a protease‐rich extract from garlic peel (Allium sativum) and evaluate its nematicidal potential. The garlic peel was crushed, suspended in distilled water, and the obtained extract was subjected to filtration, centrifugation, and dialysis to concentrate the proteases. The nematicidal activity was tested in vitro on
Cecilia Baldoino Ferreira, Paulo Henrique Frois Correa Barros, Micaela Rodrigues de Sousa, Carlos Henrique Milagres Ribeiro, Ruth Celestina Condori Mamani, Ana Carolina Silva, Julia Carvalho Araújo, Maria Lúcia Bianchi, Filippe Elias de Freitas Soares   +8 more
wiley   +1 more source