Results 111 to 120 of about 50,365 (286)

Assessment of Observed and Projected Extreme Droughts in Perú—Case Study: Candarave, Tacna

Atmosphere
Droughts have always been one of the most dangerous hazards for civilizations, especially when they impact the headwaters of a watershed, as their effects can spread downstream.
Ana Cruz-Baltuano, Raúl Huarahuara-Toma, Arlette Silva-Borda, Samuel Chucuya, Pablo Franco-León, Germán Huayna, Lía Ramos-Fernández, Edwin Pino-Vargas   +7 more
doaj   +1 more source

Rumen protozoa of different ages of beef cattle raised in tropical pastures during the dry season

Journal of Applied Animal Research, 2018
The purpose of this study was to quantify, identify and compare the protozoa populations in the rumen of different ages of beef cattle raised in tropical pastures during the dry season.
Eduardo Robson Duarte, Flávia Oliveira Abrão, Izabella Carolina Oliveira Ribeiro, Edvaldo Alves Vieira, Ana Carolina Nigri, Kellerson Luiz Silva, Gercino Ferreira Virgínio Júnior, Silene Maria Prates Barreto, Luciana Castro Geraseev   +8 more
doaj   +1 more source

Increased utilitarian value of invasive species in regions with long invasion history may limit public engagement for invasion control

PLANTS, PEOPLE, PLANET, EarlyView.
Positive perceptions of invasive species can hinder effective management, especially if management efforts that are rooted in scientific theories are misaligned with local ecological knowledge. We documented local ecological knowledge about land invasibility as predicted by invasion biology theories. Participants with greater local ecological knowledge
Laurel Mael Philpott, Orou G. Gaoue
wiley   +1 more source

Precision agriculture for water saving: The case of processing tomato and table grape

PLANTS, PEOPLE, PLANET, EarlyView.
Agriculture faces increasing pressure to produce high‐quality food while reducing water use under intensifying climate change and water scarcity. This study compared sensor‐based precision irrigation, drone monitoring, and near‐infrared spectroscopy with conventional farmer management in table grape and processing tomato production systems.
Giuseppe Ferrara, Alessandro Pesole, Rita De Marco, Sara Bisceglie, Giovanni Popeo, Simone Pascuzzi, Luigi Tedone   +6 more
wiley   +1 more source

A Functional Flows Framework for the Terminal Great Salt Lake Basin: Can We Have Our Lake and Drink It Too?

River Research and Applications, EarlyView.
ABSTRACT Terminal basins provide unique aquatic environments that are often highly sensitive to streamflow contributions, making them a focal point for environmental water management. However, the water needs for terminal lake, wetland, and river ecosystems, and how they relate, remain a fundamental knowledge gap that constrains our ability to ...
Belize Lane, Melissa Stamp, Sarah E. Null, Paul Thompson, Jeffrey Ostermiller, Farah Nusrat, Noelle Patterson, Maddie Witte, Bethany Neilson, Michelle Baker   +9 more
wiley   +1 more source

Mapping Scytonemin Pigment Content and Biocrust Functional Indicators Using High‐Resolution Multispectral Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution multispectral imagery combined with machine learning can accurately predict key biocrust functional indicators, particularly the UV‐protective pigment scytonemin, across dryland ecosystems. Using fine‐scale imagery acquired in the Chihuahuan Desert and Colorado Plateau, we identified spectral bands strongly ...
Raúl Román, Tong Qiu, Fernando T. Maestre, Elizabeth A. La Rue, Sergio Vargas Zesati, Anthony Schaefer, Ryan V. Trexler, Nicole Pietrasiak, Estelle Couradeau   +8 more
wiley   +1 more source

Low-carbon agricultural technologies improve forage and feed production in the Caatinga biome, Brazil: Characteristics, comparison, effects of climate change, resilience, local development, and food security

Scientia Agropecuaria
Adjustments in Brazilian livestock are necessary to minimize greenhouse gas (GHG) emissions, since the largest source of methane comes from ruminants’ enteric fermentation, and of carbon from deforestation.
Vanina Zini Antunes de Mattos, Bruna Guerreiro Tavares, Renata da Costa Barreto, Giselle Parno Guimarães, Marcos Aurélio Vasconcelos de Freitas   +4 more
doaj   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

Environmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel, Mariane Gama Nabiça, Luciana Pinheiro Santos, Thiago de Melo e Silva, Elivaldo Nunes Modesto Junior, Heronides Adonias Dantas Filho, Charles Miller de Souza Borges, Kelly das Graças Fernandes Dantas, Simone de Fátima Pinheiro Pereira, Ivan Carlos da Costa Barbosa, Beni Jequicene Mussengue Chaúque, Rosinelson da Silva Pena, Nayara Macêdo Peixoto Araújo, Alessandra Santos Lopes   +13 more
wiley   +1 more source

Effect of Different Irrigation Programs on Structural Characteristics, Productivity and Water Use Efficiency of Opuntia and Nopalea Forage Cactus Clones

Grasses
The objective of this study was to evaluate the structural characteristics, yield and water use efficiency of forage cactus under daytime and nighttime irrigation in a Brazilian semiarid region. The experiment followed a completely randomized design in a
Jandis Ferreira Nunes de Araujo, João Pedro Alves de Souza Santos, Luciana Sandra Bastos de Souza, Carlos André Alves de Souza, Cléber Pereira Alves, Alexandre Maniçoba da Rosa Ferraz Jardim, Danielle da Silva Eugênio, Leonardo Francelino de Souza, José Edson Florentino de Morais, Wilma Roberta dos Santos, Glayciane Costa Gois, Fleming Sena Campos, Marcos Vinícius da Silva, Abelardo Antônio de Assunção Montenegro, Thieres George Freire da Silva   +14 more
doaj   +1 more source

A UNIVERSITY FOR SEMIARID:

, 2019
O presente texto tem como objetivo analisar o pensamento do professor e jurista Otto de Brito Guerra, correlacionando as atividades acadêmicas, por ele desenvolvidas, e a realidade do ensino jurídico. Coube, inicialmente, fazer um relato da história desse jurista potiguar. Em seguida, uma análise das atividades de extensão desenvolvidas ao longo da sua
openaire   +1 more source