Results 31 to 40 of about 23,731 (295)

Understory host plant and insect gall diversity changes across topographic habitats differing in nutrient and water stress in the Brazilian Amazon rainforest [PDF]

Acta Amazonica, 2017
Topographic gradients in terra firme forests are associated with pronounced changes in soil texture, soil nutrients and distance to the water-table, thereby creating different hydric and nutritional conditions for plants and their associated herbivore ...
Genimar Rebouças JULIÃO, Emmanuel Duarte ALMADA, Flávia Regina Capellotto COSTA, Marco Antônio Alves CARNEIRO, G. Wilson FERNANDES   +4 more
doaj   +1 more source

Terrain Gradient Effect and Spatial Structure Characteristics of Land Use in Dashanbao Area

Shuitu baochi tongbao, 2022
[Objective] The influence of topographical factors on land use pattern and spatial structure characteristics was explored in order to provide a scientific reference basis for the planning and decision-making of land development and utilization in ...
Zhang Li, Wang Ping, Duan Xiao, Zhao Zijiao   +3 more
doaj   +1 more source

Natural history of the hyperdominant tree, Pentaclethra macroloba (Willd.) Kuntze, in the Amazon River estuary [PDF]

Brazilian Journal of Biology
Pentaclethra macroloba is a hyperdominant species with multiple uses in the Amazon. This species tolerates varying flood amplitudes, however the effect of flood topographic gradient on its ecophysiology remains unclear.
A. R. Dantas, C. C. Vasconcelos, M. C. Guedes, A. C. Lira-Guedes, M. T. F. Piedade   +4 more
doaj   +1 more source

Training Machine Learning Algorithms Using Remote Sensing and Topographic Indices for Corn Yield Prediction

Remote Sensing, 2022
Methods using remote sensing associated with artificial intelligence to forecast corn yield at the management zone level can help farmers understand the spatial variability of yield before harvesting.
Mailson Freire de Oliveira, Brenda Valeska Ortiz, Guilherme Trimer Morata, Andrés-F Jiménez, Glauco de Souza Rolim, Rouverson Pereira da Silva   +5 more
doaj   +1 more source

Learning generative texture models with extended Fields-of-Experts [PDF]

, 2009
We evaluate the ability of the popular Field-of-Experts (FoE) to model structure in images. As a test case we focus on modeling synthetic and natural textures.
Geoffrey E. Hinton, Christopher K.I. Williams, Hinton, Geoffrey E., Heess, Nicolas, Williams, Christopher K. I., Nicolas Heess   +5 more
core   +1 more source

On the Importance of Countergradients for the Development of Retinotopy: Insights from a Generalised Gierer Model [PDF]

, 2013
During the development of the topographic map from vertebrate retina to superior colliculus (SC), EphA receptors are expressed in a gradient along the nasotemporal retinal axis. Their ligands, ephrin-As, are expressed in a gradient along the rostrocaudal
David C Sterratt, David C. Sterratt (158383), Sterratt David C., Sterratt, David; id_orcid   +3 more
core   +1 more source

Development of a lateral topographic weathering gradient in temperate forested podzols

Geoderma, 2023
Mineral weathering is an important soil-forming process driven by the interplay of water, organisms, solution chemistry, and mineralogy. The influence of hillslope-scale patterns of water flux on mineral weathering in soils is still not well understood ...
Jennifer A. Bower, Donald S. Ross, Scott W. Bailey, Amanda M. Pennino, Michael J. Jercinovic, Kevin J. McGuire, Brian D. Strahm, Madeline E. Schreiber   +7 more
doaj   +1 more source

Methane and nitrous oxide fluxes across an elevation gradient in the tropical Peruvian Andes [PDF]

, 2014
The authors acknowledge the agencies that funded this research; the UK Natural Environment Research Council (NERC; joint grant references NE/H006583, NE/H007849 and NE/H006753) and the Norwegian Agency for Development Cooperation (Norad; via a sub ...
L. P. Huaraca Quispe, Meir, P., Y. A. Teh, Morley, N., E. Baggs, Smith, P., Huaraca Quispe, L. P., Huaraca- Quispe, Lidia P., S. Jones, Huaraca Quispe, L.P., M. Richards, Baggs, E., Teh, Y. A., Diem, T., Meir, Patrick, Teh, Y.A., P. Meir, Jones, S., P. Smith, T. Diem, N. Morley, Richards, M.   +21 more
core   +1 more source

Urban stream syndrome: Quantifying topographic variation along an urban-rural gradient

, 2022
Topographic variation within fluvial systems is essential for providing a mosaic of physical habitats and supporting the dynamic hydraulic, geochemical, and biological processes that determine both aquatic and riparian ecosystem function.
Dr. Caamaño-Avendaño, Diego, Tranmer, Andrew, Arteaga, Annabella   +2 more
core   +1 more source

How does grid-resolution modulate the topographic expression of geomorphic processes? [PDF]

Earth Surface Dynamics, 2016
In many locations, our ability to study the processes which shape the Earth are greatly enhanced through the use of high-resolution digital topographic data. However, although the availability of such datasets has markedly increased in recent years, many
S. W. D. Grieve, S. M. Mudd, D. T. Milodowski, F. J. Clubb, D. J. Furbish   +4 more
doaj   +1 more source