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Articles 1 - 10 of 10
Full-Text Articles in Life Sciences
Mapping The Restoration Of Degraded Peatland As A Field Of Research Area: A Scientometric Review, Samuel Obeng Apori, Douglas Mcmillan, Michelle Giltrap, Furong Tian
Mapping The Restoration Of Degraded Peatland As A Field Of Research Area: A Scientometric Review, Samuel Obeng Apori, Douglas Mcmillan, Michelle Giltrap, Furong Tian
Articles
Degraded peatland reduced many ecosystem services such as water quality and quantity, biodiversity, carbon storage, climate regulations and other cultural benefits. Therefore, several initiatives for the restoration of degraded peatland (RDP) have been attempted to restore the ecosystem processes, productivity and services of the degraded peatland to its original natural condition. Notwithstanding the popularity of RDP research among researchers and industry practitioners, a quantitative technique to map a comprehensive survey of the intellectual core and the general body landscape of knowledge on RDP research does not exist. In this study, a scientometric analysis was employed to analyze 522 documents using …
The Effect Of Green Biobased Binder On Structural, Mechanical, Liquid Absorption And Wetting Properties Of Coated Papers, Bilge N. Altay, Charles Klass, Ting Chen, Alexandar Fleck, Cem Aydemir, Arif Karademir, Paul D. Fleming
The Effect Of Green Biobased Binder On Structural, Mechanical, Liquid Absorption And Wetting Properties Of Coated Papers, Bilge N. Altay, Charles Klass, Ting Chen, Alexandar Fleck, Cem Aydemir, Arif Karademir, Paul D. Fleming
Articles
Synthetic styrene-butadiene (SB) and styrene-acrylic (SA) latex binders used in paper coating formulations are common and based on unsustainable petroleum sources. Today's papermaking industry turns towards sustainable substitutes that do not compromise quality, and reduce carbon emission, toxic substance release and waste disposal concerns related to fossil fuel sources. In this study, colloidal starch-based latex nanoparticles that do not require cooking were used for pigment coating and coated on the paper surfaces. The effects of these new biobased binders on the structural and mechanical strength properties, liquid absorption, wetting and surface topography of the paper were investigated and compared with …
Urban Aerobiological Risk Mapping Of Ornamental Trees Using A New Index Based On Lidar And Kriging: A Case Study Of Plane Trees, Raúl Pecero-Casimiro, Santiago Fernández-Rodríguez, Rafael Tormo-Molina, Alejandro Monroy-Colín, Inmaculada Silva-Palacios, Juan Pedro Cortés-Pérez, Ángela Gonzalo-Garijo, J. M. Maya-Manzano
Urban Aerobiological Risk Mapping Of Ornamental Trees Using A New Index Based On Lidar And Kriging: A Case Study Of Plane Trees, Raúl Pecero-Casimiro, Santiago Fernández-Rodríguez, Rafael Tormo-Molina, Alejandro Monroy-Colín, Inmaculada Silva-Palacios, Juan Pedro Cortés-Pérez, Ángela Gonzalo-Garijo, J. M. Maya-Manzano
Articles
Ornamental trees bring benefits for human health, including reducing urban pollution. However, some species, such as plane trees (Platanus sp.), produce allergenic pollen. Consequently, urban maps are a valuable tool for allergic patients and allergists, but they often fail to include variables that contribute to the “building downwash effect”, such as the width and shape of streets and the height of buildings. Other factors that directly influence pollen dispersion (slopes and other geographical features) also have not traditionally been discussed. The LiDAR (Laser Imaging Detection and Ranging) technique enables one to consider these variables with high accuracy. This work proposes …
Relationship Of Ndvi And Oak (Quercus)Pollen Including A Predictive Model In The Sw Mediterranean Region, Rocío González-Naharro, Elia Quirós, Santiago Fernández-Rodríguez, Inmaculada Silva-Palacios, J. M. Maya-Manzano, Rafael Tormo-Molina, Raúl Pecero-Casimiro, Alejandro Monroy-Colin, Ángela Gonzalo-Garijo
Relationship Of Ndvi And Oak (Quercus)Pollen Including A Predictive Model In The Sw Mediterranean Region, Rocío González-Naharro, Elia Quirós, Santiago Fernández-Rodríguez, Inmaculada Silva-Palacios, J. M. Maya-Manzano, Rafael Tormo-Molina, Raúl Pecero-Casimiro, Alejandro Monroy-Colin, Ángela Gonzalo-Garijo
Articles
Techniques of remote sensing are being used to develop phenological studies. Our goal is to study the correlation among the Normalized Difference Vegetation Index (NDVI) related with oak trees included in three set data polygons (15, 25 and 50 km to aerobiological sampling point as NDVI-15, 25 and 50), and oak (Quercus) daily average pollen counts from 1994 to 2013. The study was developed in the SW Mediterranean region with continuous pollen recording within the mean pollen season of each studied year. These pollen concentrations were compared with NDVI values in the locations containing the vegetation under a study based …
Emergent Fungal Entomopathogen Does Not Alter Density Dependence In A Viral Competitor, Andrew M. Liebhold, Ruth Plymale, Joseph S. Elkinton, Ann E. Hajek
Emergent Fungal Entomopathogen Does Not Alter Density Dependence In A Viral Competitor, Andrew M. Liebhold, Ruth Plymale, Joseph S. Elkinton, Ann E. Hajek
Articles
Population cycles in forest Lepidoptera often result from recurring density-dependent epizootics of entomopathogens. While these systems are typically dominated by a single pathogen species, insects are often infected by multiple pathogens, yet little is known how pathogens interact to affect host dynamics. The apparent invasion of northeastern North America by the fungal entomopathogen Entomophaga maimaiga some time prior to 1989 provides a unique opportunity to evaluate such interactions. Prior to the arrival of E. maimaga, the oscillatory dynamics of host gypsy moth, Lymantria dispar, populations were apparently driven by epizootics of a nucleopolyhedrovirus. Subsequent to its emergence, E. …
Comparing Two Methods For Quantifying Soil-Borne Entomophaga Maimaiga Resting Spores, Ann E. Hajek, Ruth C. Plymale, James R. Reilly
Comparing Two Methods For Quantifying Soil-Borne Entomophaga Maimaiga Resting Spores, Ann E. Hajek, Ruth C. Plymale, James R. Reilly
Articles
To improve usability of methods for quantifying environmentally persistent entomophthoralean resting spores in soil, we modified and tested two methods using resting spores (azygospores) of the gypsy moth pathogen Entomophaga maimaiga. Both methods were effective for recovering resting spores at concentrations >100 resting spores/g dry soil. While a modification of a method originally described by Weseloh and Andreadis (2002) recovered more resting spores than a modified method based on Percoll density gradients, the ability to estimate true densities from counts was similar for both methods. Regression equations are provided for predicting true resting spore densities from counts, with R 2 …
A Mixed-Effects Height-Diameter Model For Pinus Densiflora Trees In Gangwon Province, Korea, Young Jin Lee, Dean W. Coble, Jung Kee Pyo, Sung Ho Kim, Woo Kyun Lee, Jung Kee Choi
A Mixed-Effects Height-Diameter Model For Pinus Densiflora Trees In Gangwon Province, Korea, Young Jin Lee, Dean W. Coble, Jung Kee Pyo, Sung Ho Kim, Woo Kyun Lee, Jung Kee Choi
Articles
A new mixed-effects model was developed that predicts individual-tree total height for Pinus densiflora trees in Gangwon province as a function of individual-tree diameter (cm). The mixed-effects model contains two random-effects parameters. Maximum likelihood estimation was used to fit the model to 560 height-diameter observations of individual trees measured throughout Gwangwon province in 2007 as part of the National Forest Inventory Program in Korea. The new model is an improvement over fixed effects models because it can be calibrated to a local area, such as an inventory plot or individual stand. The new model also appears to be an improvement …
Plant-Mediated Alteration Of The Peritrophic Matrix And Baculovirus Infection In Lepidopteran Larvae, Ruth C. Plymale, Michael J. Grove, Diana Cox-Foster, Nancy Ostiguy, Kelli Hoover
Plant-Mediated Alteration Of The Peritrophic Matrix And Baculovirus Infection In Lepidopteran Larvae, Ruth C. Plymale, Michael J. Grove, Diana Cox-Foster, Nancy Ostiguy, Kelli Hoover
Articles
The peritrophic matrix (PM) lines the midgut of most insects, providing protection to the midgut epithelial cells while permitting passage of nutrients and water. Herein, we provide evidence that plant-mediated alteration of the PM contributes to the well-documented inhibition of fatal infection by Autographa californica multiple nucleopolyhedrovirus (AcMNPV) of Heliothis virescens F. larvae fed cotton foliage. We examined the impact of the PM on pathogenesis using a viral construct expressing a reporter gene (AcMNPV-hsp70/ lacZ) orally inoculated into larvae with either intact PMs or PMs disrupted by Trichoplusia ni granulovirus occlusion bodies containing enhancin, known to degrade insect intestinal mucin. …
Gauging The Acceptability Of Fuels Management: A Matter Of Trust, Mark W. Brunson
Gauging The Acceptability Of Fuels Management: A Matter Of Trust, Mark W. Brunson
Articles
There is a significant gap between the acceptability of management practices in theory and the confidence that citizens have in land managers' abilities to use those practices safely and effectively. But since most citizens are willing to accept the use of multiple practices on a small scale, opportunities exist for land managers to build citizens’ confidence in their activities while gradually reducing the risk of wildfire to the Great Basin’s most susceptible communities.
A Survival Model For Unthinned Loblolly Pine Plantations That Incorporates Non-Planted Tree Competition, Site Quality, And Incidence Of Fusiform Rust, Y. J. Lee, Dean W. Coble
A Survival Model For Unthinned Loblolly Pine Plantations That Incorporates Non-Planted Tree Competition, Site Quality, And Incidence Of Fusiform Rust, Y. J. Lee, Dean W. Coble
Articles
Future biomass yields are functionally related to the number of trees surviving at a given age. A stand level survival model was developed that incorporates competition of non-planted trees, site quality, and the incidence of fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme). The model consists of a system of two equations, one of which represents the number of surviving trees infected by fusiform rust while the other represents the number of trees not infected by fusiform rust. Data from unthinned loblolly pine (Pinus taeda L.) plantations in East Texas were used to fit and evaluate the …