Forest Grouse In The Fall, Chuck Carpenter Iii, Skyler Farnsworth, David K. Dahlgren

All Current Publications

This bulletin describes the two types of forest grouse that inhabit mountain forests and rangelands in Utah, the ruffed grouse and the dusky grouse. It tells the species differences such as breeding, survival and reproduction, and broods. It includes tips for forest grouse hunters.

Taking It To The Road: Utah Biochar Workshops Increase Knowledge And Lead To Behavior Change, Megan Dettenmaier, Lauren Dupey, Darren Mcavoy

All Current Publications

This fact sheet describes attitude and behavior changes that have resulted from attending the statewide biochar workshop program. By administering surveys 6 to 8 months following workshops, authors learned that attendees were making biochar and biochar kilns, and that attitudes about biochar remained positive.

Smokejumper Obituary: Quigley, Gordon Loran (Idaho City 1955), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Regional Forest Volume Estimation By Expanding Lidar Samples Using Multi-Sensor Satellite Data, Bo Xie, Chunxiang Cao, Min Xu, Barjeece Bashir, Ramesh P. Singh, Zhibin Huang, Xiaojuan Lin

Mathematics, Physics, and Computer Science Faculty Articles and Research

Accurate information regarding forest volume plays an important role in estimating afforestation, timber harvesting, and forest ecological services. Traditionally, operations on forest growing stock volume using field measurements are labor-intensive and time-consuming. Recently, remote sensing technology has emerged as a time-cost efficient method for forest inventory. In the present study, we have adopted three procedures, including samples expanding, feature selection, and results generation and evaluation. Extrapolating the samples from Light Detection and Ranging (LiDAR) scanning is the most important step in satisfying the requirement of sample size for nonparametric methods operation and result in accuracy improvement. Besides, mean decrease Gini …

Smokejumper Obituary: Wynn, G. Brent (Idaho City 1956), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Dusenbury, Robert "Bob" (Missoula 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Contrasting Root System Structure And Belowground Interactions Between Black Spruce (Picea Mariana (Mill.) B.S.P) And Trembling Aspen (Populus Tremuloides Michx) In Boreal Mixedwoods Of Eastern Canada, Claudele Ghotsa Mekontchou, Daniel Houle, Yves Bergeron, Igor Drobyshev

Aspen Bibliography

This study explored the underground interactions between black spruce and trembling aspen in pure and mixed stands to understand how their soil resource use help these species coexist in the boreal mixedwoods of Western Quebec. We analyzed species-specific fine root foraging strategies (root biomass and root tissue density) along three soil layers (organic, top 0–15 cm, and bottom 15–30 cm mineral soil), using 180 soil cores. We collected cores in three sites, each containing three 20 × 50 m2 plots of pure spruce, pure aspen, and mixed spruce and aspen stands. Spruce had a shallow rooting, whereas aspen had a …

Genetic Variation Of Introduced Red Oak (Quercus Rubra) Stands In Germany Compared To North American Populations, Tim Pettenkofer, Reiner Finkeldey, Markus Müller, Konstantin V. Krutovsky, Barbara Vornam, Ludger Leinemann, Oliver Gailing

Michigan Tech Publications, Part 1

Although Northern red oak (Quercus rubra L.) is the most important introduced deciduous tree species in Germany, only little is known about its genetic variation. For the frst time, we describe patterns of neutral and potentially adaptive nuclear genetic variation in Northern red oak stands across Germany. For this purpose, 792 trees were genotyped including 611 trees from 12 stands in Germany of unknown origin and 181 trees from four populations within the natural distribution area in North America. Our marker set included 12 potentially adaptive (expressed sequence tag-derived simple sequence repeat=EST SSR) and 8 putatively selectively neutral nuclear microsatellite …

What Is An Endangered Species?: Judgments About Acceptable Risk, Thomas Offer-Westort, Adam Feltz, Jeremy T. Bruskotter, John A. Vucetich

Michigan Tech Publications, Part 1

Judgments about acceptable risk in the context of policy may be influenced by law makers, policy makers, experts and the general public. While significant effort has been made to understand public attitudes on acceptable risk of environmental pollution, little is known about such attitudes in the context of species' endangerment. We present survey results on these attitudes in the context of United States' legal-political apparatus intended to mitigate species endangerment. The results suggest that the general public exhibit lower tolerance for risk than policy makers and experts. Results also suggest that attitudes about acceptable risk for species endangerment are importantly …

Smokejumper Obituary: Smith, Glen T. "Rip" (Idaho City 1954), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Anoxic Conditions Maintained High Phosphorus Sorption In Humid Tropical Forest Soils, Yang Lin, Avner Gross, Christine S. O'Connell, Whendee L. Silver

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The strong phosphorus (P) sorption capacity of iron (Fe) and aluminum (Al) minerals in highly weathered, acidic soils of humid tropical forests is generally assumed to be an important driver of P limitation to plants and microbial activity in these ecosystems. Humid tropical forest soils often experience fluctuating redox conditions that reduce Fe and raise pH. It is commonly thought that Fe reduction generally decreases the capacity and strength of P sorption. Here we examined the effects of 14 d oxic and anoxic incubations on soil P sorption dynamics in humid tropical forest soils from Puerto Rico. Contrary to the …

Remote Sensing Monitoring Of Vegetation Dynamic Changes After Fire In The Greater Hinggan Mountain Area: The Algorithm And Application For Eliminating Phenological Impacts, Zhibin Huang, Chunxiang Cao, Wei Chen, Min Xu, Yongfeng Dang, Ramesh P. Singh, Barjeece Bashir, Bo Xie, Xiaojuan Lin

Mathematics, Physics, and Computer Science Faculty Articles and Research

Fires are frequent in boreal forests affecting forest areas. The detection of forest disturbances and the monitoring of forest restoration are critical for forest management. Vegetation phenology information in remote sensing images may interfere with the monitoring of vegetation restoration, but little research has been done on this issue. Remote sensing and the geographic information system (GIS) have emerged as important tools in providing valuable information about vegetation phenology. Based on the MODIS and Landsat time-series images acquired from 2000 to 2018, this study uses the spatio-temporal data fusion method to construct reflectance images of vegetation with a relatively consistent …

Investigation Of Morphoagronomic Performance And Selection Indices In Theinternational Safflower Panel For Breeding Perspectives, Fawad Ali, Abdurrahi̇m Yilmaz, Hassan Javed Chaudhary, Muhammad Azhar Nadeem, Malik Ashiq Rabbani, Yusuf Arslan, Muhammad Amjad Nawaz, Ephrem Habyarimana, Faheem Shehzad Baloch

Turkish Journal of Agriculture and Forestry

Developing high yielding safflower cultivars with good adaptation to diverse environmental conditions can improve production in terms of seed yield and reduce the deficiency in edible oil. The genetic variability that exists among and within populations for desirable agronomic traits can be used to develop elite cultivars. A total of 94 safflower accessions from 26 different countries were used in this study to evaluate morphoagronomic performance, determine the pattern of similarity centers, and identify the best performing accessions by conducting 2 field experiments in Pakistan and Turkey using augmented design. Genetic diversity for important yield and yield traits was described …

Spruce Bark Beetles As A Biological Waste That Can Be Processed In A Biogas Plant, Jiri Rusin, Silvia Mudroncekova, Marek Barta, Katerina Chamradova

Turkish Journal of Agriculture and Forestry

Biogas plays an important role in reducing the amount of biowaste that is converted to methane which is usable by multiple pathways in the energy sector. Bark beetles are among the most important pests of spruce forests in Europe. Principal measures of managing bark beetle populations include trapping them with pheromone traps. Biomass of bark beetles collected by the traps constitutes a waste of forest resources that could potentially be processed in biogas plants. The aim of this study was to provide information about the trapping of bark beetles by pheromone traps in Tatra National Park during 2005-2018 and to …

Age-Specific Life Tables Of Aonidiella Aurantii (Maskell) (Hemiptera: Diaspididae) And Itsparasitoid Aphytis Melinus Debach (Hymenoptera: Aphelinidae), Khalid Mohammed, İsmai̇l Karaca, Manjree Agarwal, James Newman, Yonglin Ren

Turkish Journal of Agriculture and Forestry

Biological parameters of the California red scale (Aonidiella aurantii [Maskell] [Hemiptera: Diaspididae]) were determined under laboratory conditions at 3 different temperatures (20, 23, and 27 °C) on butternut squash (Cucurbita moschata Duchesne ex Lamarck) (Cucurbitaceae), while the biological parameters of its parasitoid Aphytis melinus DeBach (Hymenoptera: Aphelinidae) were conducted at 27 °C. The survival of A.a aurantii ranged between 80.0% and 88.3%. The highest mortality was recorded during the adult stage, with mortalities ranging between 12% and 20%. On C. moschata, the total development time was 93.1 ± 9.73, 81.8 ± 7.13, and 65.7 ± 6.37 days, while the adult …

The Effect Of Hot Water, 1-Mcp, And Lovastatin On Fresh-Cut Apples After Long-Termcontrolled Atmosphere Storage, Mehmet Ali̇ Koyuncu

Turkish Journal of Agriculture and Forestry

This research was carried out over two years to determine the quality changes in fresh-cut apple slices processed after hot water, 1-methylcyclopropene (1-MCP), and lovastatin treatments followed by controlled atmosphere (CA) storage. Apples harvested at the optimum stage were immediately transferred to the postharvest laboratory by a refrigerated vehicle. Intact apples were exposed to three treatments: dipping into hot water (50 °C for 60 s), treating with lovastatin (1.25 mmol L-1), and treating with 1-MCP (1 µL L-1). Treated apples and the control group were stored in CA storage (2% O2 + 2% CO2 ) for 10 months. After long-term …

A Preliminary Checklist Of Lichens From Kamiak Butte County Park, Washington State, Emma Sell, Amanda Chandler

2020 Symposium Posters

The semiarid Palouse ecoregion of North America was once dominated by temperate prairies and connects areas of southeast Washington, north-central Idaho, and northeast Oregon. Transformation of nearly all habitats comprising this ecosystem into agricultural lands has drastically reduced extant native grasslands to small, highly fragmented pieces. These land conversion practices, coupled with the subsequent takeover of invasive plant species, have placed the Palouse ecoregion among the most critically endangered ecosystems in the United States, with < 1% of land remaining that is suitable to host native species. The enormous loss of biodiversity across the Palouse has prompted a need for further study regarding a wide variety of organisms. In particular, lichen diversity of the Palouse ecoregion has never been formally characterized, and there are overall very few detailed studies of lichens throughout eastern Washington. To improve knowledge of Palouse lichen diversity, we first reviewed collection data from historical herbarium specimens via the Consortium of North American Lichen Herbaria (CNALH) database. We then collected lichen voucher specimens from Kamiak Butte County Park (KBCP), one of the largest contiguous natural areas within the Palouse ecoregion as its relatively steep, rocky slopes make it ill-suited for agricultural conversion. KBCP consists of 298 acres of mixed Pinus ponderosa (ponderosa pine) and Pseudotsuga menziesii (Douglas fir) forest and native grassland that rises above the surrounding farmland, as well as an east-west ridgeline …

Drought In Temperate Mesic Regions Leads To Micro-Density Anomalies In White Pine, Elise Miller

CSB and SJU Distinguished Thesis

Wood density and wood volume determine the amount of carbon fixed by trees; however, while we are beginning to understand normal seasonal variation in wood density, anomalies are common, and their drivers are poorly understood. In conifers, wood density normally increases continuously throughout the season, but intra-annual fluctuations in wood density can occur and have been linked to climatic events. The causes of these fluctuations in density at the micro-scale (hereafter micro-density anomalies) are still debated.

Mesic regions are experiencing more droughts, but micro-density anomalies are rarely studied in these ecosystems. This study examined micro-density anomaly distribution within the boles …

Subalpine Forest Tree Seedling Response To Drought, Alex Goke

Electronic Theses and Dissertations

Knowledge of tree species’ ability to tolerate drought is necessary to anticipate future forest dynamics with climate change, especially at the seedling stage given their role in shaping forest structure. We used precipitation reduction shelters to mimic drought for subalpine conifer seedlings (A. lasiocarpa and P. engelmannii) in the Rocky Mountains and compared survivorship and morphological and physiological responses to assess relative degrees of drought tolerance. We detected no significant investment in morphological tolerance traits (e.g. root biomass, leaf:stem area ratio) but substantial reductions in net photosynthesis. While shading partially ameliorated drought effects when precipitation reduction was moderate, …

The Effect Of Sodium Chloride On Hybrid Taxodium Selections, Anna Koonce, Edward Bush, David Creech

Faculty Publications

Saltwater intrusion is a major cause of coastal erosion. New hybrid bald cypress species have been shown to exhibit salinity tolerance compared to native bald cypress species. Planting these hybrids, or Nanjing Bot Garden genotype (NBG), trees where their roots can stabilize soil and preserve land may reduce coastal erosion in areas subjected to saltwater intrusion. The purpose of this experiment was to determine whether or not selected bald cypress NBG genotype tree species survive better than native bald cypress trees in areas inundated with saline water. Leaves were harvested, dried and analyzed for their elemental concentration. NBG genotype trees …

Comparing Canopy Metric Estimations Using Three Conifer Species In The Netherlands, Alan Duncan Hibler, Brian P. Oswald, Nienke Brouwer, Ester Willemsen, Hans M. Williams

Faculty Publications

A growing concern associated with fire in The Netherlands is estimating the spread of wildfire, however often the data needed to estimate canopy fires are lacking. The primary parameter required is canopy bulk density (CBD), which requires estimations of canopy gap fraction and leaf area index (LAI). The accuracy of three indirect methods of estimating CBD (a densiometer, hemispherical canopy photographs (HCP), and a LI-COR LAI 2200c plant canopy analyzer) was compared for three common tree species in the Netherlands [Scots pine (Pinus sylvestris L.), black pine (Pinus nigra Arnold) and Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)]. No …

An Integrated Method For Coding Trees, Measuring Tree Diameter, And Estimating Tree Positions, Linhao Sun, Luming Fang, Yuhi Weng, Siqing Zheng

Faculty Publications

Accurately measuring tree diameter at breast height (DBH) and estimating tree positions in a sample plot are important in tree mensuration. The main aims of this paper include (1) developing a new, integrated device that can identify trees using the quick response (QR) code technique to record tree identifications, measure DBH, and estimate tree positions concurrently; (2) designing an innovative algorithm to measure DBH using only two angle sensors, which is simple and can reduce the impact of eccentric stems on DBH measures; and (3) designing an algorithm to estimate the position of the tree by combining ultra-wide band (UWB) …

Activity Level-Predation Risk Tradeoff In A Tadpole Guild: Implications For Community Organization Along The Hydroperiod Gradient, Nicholas C. Schiwitz, Christopher M. Schalk, Daniel Saenz

Faculty Publications

Increasing activity levels permit greater food intake for use towards growth and reproduction, consequently increasing predation risk via increased detection. Larval anurans are models to examine activity level-predation risk tradeoffs, as they occupy a variety of lentic habitats that impose constraints on the distribution and abundance of species. Ephemeral ponds have a low abundance and diversity of predators and as a result tadpole species tend to have high foraging rates for rapid development. Permanent ponds generally possess a greater diversity and abundance of predators and tadpoles inhabiting these locations tend to have low activity rates or chemical defenses to minimize …

Modeling Early Responses Of Loblolly Pine Growth To Thinning In The Western Gulf Coastal Plain Region, Yuhi Weng, J. Grogan, Dean W. Coble

Faculty Publications

Growth response to thinning has long been a research topic of interest in forest science. This study presents the first 3–4 years of response of loblolly pine (Pinus taeda L.) growth to thinning at different intensities. Data were collected from the East Texas Pine Research Project’s region-wide loblolly pine thinning study, which covers a wide variety of stand conditions. Four treatments, light, moderate, and heavy thinning, respectively having 370, 555, and 740 residual trees per hectare after thinning, and an unthinned control, were included. Individual tree diameter at breast height (dbh) and total height were recorded annually for the …

Integration Of Citygreen Landscape Ecological Analysis Into A Capstone Environmental Science Course, David L. Kulhavy, Daniel R. Unger, Reid Viegut, I-Kuai Hung, Yanli Zhang

Faculty Publications

CITYgreen Geographic Information Systems software was used to develop a campus wide cover type map for Stephen F. Austin State University in an environmental science landscape ecology course. The finding indicated an equal division of forest cover type compared to impervious surface of buildings and paved surface. Once the classification was completed, students chose an area for reforestation identified in CITYgreen, while raising funds for the purchase of trees for the project. Before completing the project, students reviewed tenets of landscape ecology, civic ecology education, and benefits of urban forestry. At the completion of the project, students reviewed service-learning aspects …

Timber Talk, Vol. 58, No. 1, March 2020

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 58, No. 1, March 2020

Timber Talk, Vol. 58, No. 2, July 2020

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 58, No. 2, Junly2020

Timber Talk, Vol. 58, No. 3, September 2020

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 58, No. 3, September 2020

Interactions Between Topsoil Properties And Ecophysiological Responses Of Mangroves(Avicennia Marina) Along The Tidal Gradient In An Arid Region In Qatar, Hanna Chang, Seung Hyun Han, Seongjun Kim, Jiae An, Juha Alatalo, Yowhan Son

Turkish Journal of Agriculture and Forestry

This study investigated the interactions between topsoil properties and ecophysiological responses of Avicennia marina along the tidal gradient in an arid region in Qatar. In February 2017, three plots were established, each at a distance of 0 m (D0), 50 m (D50), and 100 m (D100) from the inland boundary of a mangrove forest. Soil samples were collected at 0-10-cm depth in each plot to determine the chemical properties, and the density of seedlings, saplings, and trees was measured. Moreover, above- (AGB) and below-ground biomass (BGB) were calculated using an allometric equation for A. marina with the measured diameter at …

Fireanalyst: An Effective System For Detecting Fire Geolocation And Fire Behavior In Forestsusing Mathematical Modeling, Yücel Güllüce, Rahmi̇ Nurhan Çeli̇k

Turkish Journal of Agriculture and Forestry

This study proposes an effective new fire detection method and monitoring software for an early-warning fire detection system aimed at valuable forested areas, such as botanical parks or high conservation value forests, particularly those with boundaries. These critical forested areas need to be appropriately managed because they contain large concentrations of biological diversity, including threatened or endangered species, which are very susceptible to fire outbreaks; thus, early detection of fire and rapid response have a very important place in the fight against fire in those areas. In this proposed system, special detectors with state-of-the-art multispectral infrared technology and mathematical modeling …