Results 21 to 30 of about 417,353 (209)

Potato crop growth as affected by nitrogen and plant density [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2000
Growth and development variables and dry matter characteristics were studied for cultivar Snowden of potato (Solanum tuberosum L.) to evaluate nitrogen and plant density influence. Disregarding ending of season plant stress, the average number of actives
CARLOS ALBERTO DA SILVA OLIVEIRA
doaj   +1 more source

A remarkable long-antennate new species of Lamprempis Wheeler & Melander (Diptera, Empididae, Empidinae) from the Brazilian Amazon [PDF]

open access: yesActa Amazonica, 2023
Lamprempis Wheeler & Melander, 1901 is a Neotropical genus of dance flies with 24 described species. Here we describe and illustrate a new species collected in the Amazonian Brazilian states of Amapá, Amazonas, and Pará, L. amazonida sp. nov.
Yanca Moreira BIER   +1 more
doaj   +1 more source

A comparison of three canopy interception models for a leafless mixed deciduous forest stand in the eastern United States [PDF]

open access: yes, 2007
Canopy interception of incident precipitation is a critical component of the forest water balance during each of the four seasons. Models have been developed to predict precipitation interception from standard meteorological variables because of ...
Frost, Ethan E.   +2 more
core   +1 more source

Monitoring Effect of Fire on Ant Assemblages in Brazilian Rupestrian Grasslands: Contrasting Effects on Ground and Arboreal Fauna

open access: yesInsects, 2017
Fire is one of the most relevant ecological disturbances in nature. Little is known about the effects of fire on biodiversity in ecosystems like rupestrian grasslands, which share characteristics with savanna and forest biomes.
Diego Anjos   +3 more
doaj   +1 more source

Vertical stratification of selected Hymenoptera in a remnant forest of the Po Plain (Italy, Lombardy) (Hymenoptera: Ampulicidae, Crabronidae, Sphecidae) [PDF]

open access: yes, 2017
Communities of the canopy of temperate forests are still relatively unexplored. Furthermore, very little is known on how vertical stratification for some insect groups is related to biological strategies.
Cerretti, Pierfilippo   +2 more
core   +4 more sources

Nitrogen cycling, forest canopy reflectance, and emergent properties of ecosystems [PDF]

open access: yes, 2013
In Ollinger et al. (1), we reported that mass-based concentrations of nitrogen in forest canopies (%N) are positively associated with whole-canopy photosynthetic capacity and canopy shortwave albedo in temperate and boreal forests, the latter result ...
Frolking, Steve   +5 more
core   +2 more sources

Ozone exchange within and above an irrigated Californian orchard [PDF]

open access: yes, 2020
In this study, the canopy effects on the vertical ozone exchange within and above Californian orchard are investigated. We examined the comprehensive dataset obtained from the Canopy Horizontal Array Turbulence Study (CHATS).
Brown, J. S.   +7 more
core   +2 more sources

Workflow standardization of a novel team care model to improve chronic care: a quasi-experimental study

open access: yesBMC Health Services Research, 2017
Background Team-based chronic care models have not been widely adopted in community settings, partly due to their varying effectiveness in randomized control trials, implementation challenges, and concerns about physician acceptance.
Laura Panattoni   +4 more
doaj   +1 more source

Annual and Seasonal Changes in the Structure of Litter-Dwelling Ant Assemblages (Hymenoptera: Formicidae) in Atlantic Semideciduous Forests

open access: yesPsyche: A Journal of Entomology, 2012
We surveyed ant fauna in the leaf litter in an Atlantic Semideciduous forest in the State Park of Rio Doce (PERD). The work aimed to produce basic information about habitat effects on diversity, as well as about how the ant fauna in a such buffered ...
Flávio Siqueira de Castro   +3 more
doaj   +1 more source

Summary of Data Farming

open access: yesAxioms, 2016
Data Farming is a process that has been developed to support decision-makers by answering questions that are not currently addressed. Data farming uses an inter-disciplinary approach that includes modeling and simulation, high performance computing, and ...
Gary Horne, Klaus-Peter Schwierz
doaj   +1 more source

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