Results 11 to 20 of about 83,427 (134)

Volatile Chemicals of Adults and Nymphs of the Eucalyptus Pest, Thaumastocoris peregrinus (Heteroptera: Thaumastocoridae)

open access: yesPsyche: A Journal of Entomology, 2012
Thaumastocoris peregrinus is an introduced “true bug” that is now a severe pest in Eucalyptus plantations of various Southern Hemisphere countries. The semiochemicals of thaumastocorids are completely unknown.
Camila B. C. Martins   +4 more
doaj   +2 more sources

Global maps of soil temperature. [PDF]

open access: yesGlob Chang Biol, 2022
We provide global maps of soil temperature at a 1 km2 resolution, based on a global database of more than 8500 in situ soil temperature time series. We show that over the year, soils in cold and/or dry biomes are on average 3.6°C warmer, whereas soils in warm and humid environments are 0.7°C cooler than gridded air temperature.
Lembrechts JJ   +405 more
europepmc   +2 more sources

Unveiling the Evolutionary History of cis-Andean Alouatta (Atelidae, Alouattinae) Through Mitochondrial Genomes. [PDF]

open access: yesAm J Primatol
Mitochondrial DNA analysis suggests that founder‐event speciation played a key role in the divergence between cis‐Andean and trans‐Andean clades, as well as in the diversification of cis‐Andean lineages. Ancestral range reconstruction using mitochondrial genomes indicates that the most recent common ancestor of Alouatta had a widespread distribution ...
Povill C   +11 more
europepmc   +2 more sources

Across the edge: Spatial segregation drives community structure in tri-trophic multilayer networks at a forest-grassland edge. [PDF]

open access: yesJ Anim Ecol
This study reveals how forest–grassland edges act as ecological barriers that shape tri‐trophic interaction networks. Using multilayer network theory, it uncovers how species influence and biodiversity patterns emerge across spatial layers, offering novel insights into edge‐driven community assembly and conservation in fire‐prone mosaics.
Negrello-Oliveira H   +2 more
europepmc   +2 more sources

Development of Micellar HPLC-UV Method for Determination of Pharmaceuticals in Water Samples. [PDF]

open access: yesJ Anal Methods Chem, 2018
Method for extraction and determination of amoxicillin, caffeine, ciprofloxacin, norfloxacin, tetracycline, diclofenac, ibuprofen, nimesulide, levonorgestrel, and 17α‐ethynylestradiol exploiting micellar liquid chromatography with PDA detector and solid‐phase extraction was proposed.
da Silva DC, Oliveira CC.
europepmc   +2 more sources

Biochar Chemistry in a Weathered Tropical Soil: Kinetics of Phosphorus Sorption

open access: yesAgriculture, 2021
The phosphorus (P) chemistry of biochar (BC)-amended soils is poorly understood. This statement is based on the lack of published research attempting a comprehensive characterization of biochar’s influence on P sorption.
Marina Moura Morales   +4 more
doaj   +1 more source

INVENTÁRIO DE SERINGUEIRAS NATIVAS NUMA ÁREA DA AMAZÔNIA OCIDENTAL [PDF]

open access: yesFloresta e Ambiente, 2023
RESUMO Este trabalho teve como objetivo realizar o inventário florestal de seringueiras nativas (Hevea brasiliensis Mull. Arg.) de um seringal da Amazônia Ocidental.
José de Arimatéa Silva
doaj  

Influência do tratamento térmico do resíduo sólido industrial (Grits) na resistência mecânica de um latossolo para pavimentos de estradas florestais [PDF]

open access: yesRevista Árvore, 2003
Em estudos que envolvem o tratamento de solos com aditivos químicos com fins rodoviários, merecem especial importância aquelas pesquisas orientadas no sentido de descobrir novos meios de torná-los mais econômicos e, ao mesmo tempo, mais resistentes.
Carlos Cardoso Machado   +2 more
doaj   +1 more source

Comparação de taxas de erosão em estradas florestais estimadas pelo modelo WEPP (Water Erosion Prediction Project) modificado em relção a medições experimentais [PDF]

open access: yesRevista Árvore, 2003
O objetivo do trabalho foi testar o modelo WEPP (Water Erosion Prediction Project), através de comparações entre volume de enxurrada e perda de solo observados experimentalmente, provenientes dos segmentos de estradas florestais submetidas à chuva ...
Carlos Cardoso Machado   +3 more
doaj   +1 more source

Evaluation of different selection indices combining Pilodyn penetration and growth performance in Eucalyptus clones [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2017
The present study aimed to evaluate the selection indices efficiency for Pilodyn penetration combined with growth traits in Eucalyptus clones. It was carried out experiments in a randomized block design, with single tree plots and 30 replications ...
Andrei Caíque Pires Nunes   +3 more
doaj   +1 more source

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