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Articles 31 - 60 of 86
Full-Text Articles in Life Sciences
Volume 4, Chapter 1-4: Aquatic Wetlands: Marchantiophyta, Order Jungermanniales – Jungermanniineae, Janice M. Glime
Volume 4, Chapter 1-4: Aquatic Wetlands: Marchantiophyta, Order Jungermanniales – Jungermanniineae, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Bryophyte Ecology Table Of Contents, Janice M. Glime
Bryophyte Ecology Table Of Contents, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Spatio-Temporal Dynamics Of Landscape Use By The Bumblebee Bombus Pauloensis (Hymenoptera: Apidae) And Its Relationship With Pollen Provisioning, Pablo Cavigliasso, Colin Phifer, Erika M. Adams, David J. Flaspohler, Gerardo P. Gennari, Julian A. Licata, Natacha P. Chacoff
Spatio-Temporal Dynamics Of Landscape Use By The Bumblebee Bombus Pauloensis (Hymenoptera: Apidae) And Its Relationship With Pollen Provisioning, Pablo Cavigliasso, Colin Phifer, Erika M. Adams, David J. Flaspohler, Gerardo P. Gennari, Julian A. Licata, Natacha P. Chacoff
Michigan Tech Publications
Understanding how bees use resources at a landscape scale is essential for developing meaningful management plans that sustain populations and the pollination services they provide. Bumblebees are important pollinators for many wild and cultivated plants, and have experienced steep population declines worldwide. Bee foraging behavior can be influenced by resource availability and bees' lifecycle stage. To better understand these relationships, we studied the habitat selection of Bombus pauloensis by tracking 17 queen bumblebees with radio telemetry in blueberry fields in Entre Ríos province, Argentina. To evaluate land use and floral resources used by bumblebees, we tracked bees before and after …
Chapter 001: Aquatic And Wet Habitats, Janice M. Glime
Chapter 001: Aquatic And Wet Habitats, Janice M. Glime
Bryophyte Ecology Volume 4: Habitat and Role
Explore the contents of Bryophyte Ecology, Volume 4, Chapter 1 - Aquatic and Wetlands by clicking the links above. For the Contents section of this ebook, as well as Volumes 1 through 5, please visit the Bryophyte Ecology Main Page.
Use CTRL+F to easily search within PDF files.
Ebook sponsored by Michigan Technological University and the International Association of Bryologists.
Volume 2, Chapter 7-6: Arthropods: Habitat Relations, Janice M. Glime
Volume 2, Chapter 7-6: Arthropods: Habitat Relations, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 1-3: Aquatic Wetland: Marchantiophyta, Order Jungermanniales – Cephaloziineae 2, Janice M. Glime
Volume 4, Chapter 1-3: Aquatic Wetland: Marchantiophyta, Order Jungermanniales – Cephaloziineae 2, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Predicting Effects Of Climate Change On Productivity And Persistence Of Forest Trees, Russell D. Kramer, H. Roaki Ishii, Kelsey R. Carter, Yuko Miyazaki, Molly A. Cavaleri, Masatake G. Araki, Wakana A. Azuma, Yuta Inoue, Chinatsu Hara
Predicting Effects Of Climate Change On Productivity And Persistence Of Forest Trees, Russell D. Kramer, H. Roaki Ishii, Kelsey R. Carter, Yuko Miyazaki, Molly A. Cavaleri, Masatake G. Araki, Wakana A. Azuma, Yuta Inoue, Chinatsu Hara
Michigan Tech Publications
Global climate change increases uncertainty in sustained functioning of forest ecosystems. Forest canopies are a key link between terrestrial ecosystems, the atmosphere, and climate. Here, we introduce research presented at the 66th meeting of the Ecological Society of Japan in the symposium “Structure and function of forest canopies under climate change.” Old-growth forest carbon stores are the largest and may be the most vulnerable to climate change as the balance between sequestration and emission could easily be tipped. Detailed structural analysis of individual large, old trees shows they are allocating wood to the trunk and crown in patterns that cannot …
Taxonomic Similarity Does Not Predict Necessary Sample Size For Ex Situ Conservation: A Comparison Among Five Genera, Sean Hoban, Taylor Callicrate, John Clark, Susan Deans, Michael Dosmann, Priyanka Dipak Kadav, Et Al.
Taxonomic Similarity Does Not Predict Necessary Sample Size For Ex Situ Conservation: A Comparison Among Five Genera, Sean Hoban, Taylor Callicrate, John Clark, Susan Deans, Michael Dosmann, Priyanka Dipak Kadav, Et Al.
Michigan Tech Publications
Effectively conserving biodiversity with limited resources requires scientifically informed and efficient strategies. Guidance is particularly needed on how many living plants are necessary to conserve a threshold level of genetic diversity in ex situ collections. We investigated this question for 11 taxa across five genera. In this first study analysing and optimizing ex situ genetic diversity across multiple genera, we found that the percentage of extant genetic diversity currently conserved varies among taxa from 40% to 95%. Most taxa are well below genetic conservation targets. Resampling datasets showed that ideal collection sizes vary widely even within a genus: one taxon …
Chapter 002 - Streams, Janice M. Glime
Chapter 002 - Streams, Janice M. Glime
Bryophyte Ecology Volume 4: Habitat and Role
Explore the contents of Bryophyte Ecology, Volume 4, Chapter 2 - Streams by clicking the links above. For the Contents section of this ebook, as well as Volumes 1 through 5, please visit the Bryophyte Ecology Main Page.
Use CTRL+F to easily search within PDF files.
Ebook sponsored by Michigan Technological University and the International Association of Bryologists.
The Making Of Transgenic, Mujeeb Olushola Shittu, Tessa Steenwinkel, Shigeyuki Koshikawa, Thomas Werner
The Making Of Transgenic, Mujeeb Olushola Shittu, Tessa Steenwinkel, Shigeyuki Koshikawa, Thomas Werner
Michigan Tech Publications
The complex color patterns on the wings and body of Drosophila guttifera (D. guttifera) are emerging as model systems for studying evolutionary and developmental processes. Studies regarding these processes depend on overexpression and downregulation of developmental genes, which ultimately rely upon an effective transgenic system. Methods describing transgenesis in Drosophila melanogaster (D. melanogaster) have been reported in several studies, but they cannot be applied to D. guttifera due to the low egg production rate and the delicacy of the eggs. In this protocol, we describe extensively a comprehensive method used for generating transgenic D. guttifera. Using the protocol described here, …
Conceptual Planning Of Urban–Rural Green Space From A Multidimensional Perspective: A Case Study Of Zhengzhou, China, Bo Mu, Chang Liu, Guohang Tian, Yaqiong Xu, Yali Zhang, Audrey L. Mayer, Et Al.
Conceptual Planning Of Urban–Rural Green Space From A Multidimensional Perspective: A Case Study Of Zhengzhou, China, Bo Mu, Chang Liu, Guohang Tian, Yaqiong Xu, Yali Zhang, Audrey L. Mayer, Et Al.
Michigan Tech Publications
The structure and function of green-space system is an eternal subject of landscape architecture, especially due to limited land and a need for the coordinated development of PLEs (production, living, and ecological spaces). To make planning more scientific, this paper explored green-space structure planning via multidimensional perspectives and methods using a case study of Zhengzhou. The paper applies theories (from landscape architecture and landscape ecology) and technologies (like remote sensing, GIS—geographic information system, graph theory, and aerography) from different disciplines to analyze current green-space structure and relevant physical factors to identify and exemplify different green-space planning strategies. Overall, our analysis …
Trends In Protected Area Representation Of Biodiversity And Ecosystem Services In Five Tropical Countries, Rachel A. Neugarten, Kevin Moull, Natalia Acero Martinez, Luciano Andriamaro, Curtis Bernard, Leonardo Saenz, Et Al.
Trends In Protected Area Representation Of Biodiversity And Ecosystem Services In Five Tropical Countries, Rachel A. Neugarten, Kevin Moull, Natalia Acero Martinez, Luciano Andriamaro, Curtis Bernard, Leonardo Saenz, Et Al.
Michigan Tech Publications
In late 2020, governments will set the next decade of conservation targets under the UN Convention on Biological Diversity. Setting new targets requires understanding how well national protected area (PA) networks are spatially representing important areas for biodiversity and ecosystem services. We analyzed the representation of biodiversity priority areas (BPAs), forests, forest carbon stocks, non-timber forest products (NTFPs), and freshwater ecosystem services (FES) within terrestrial PA systems in Cambodia, Guyana, Liberia, Madagascar, and Suriname in 2003 and 2017. Four of the countries (all except Suriname) expanded their terrestrial PA networks during the study period. In all five countries, we found …
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Michigan Tech Publications
Background
Vast areas of lowland neotropical forest have regenerated after initially being cleared for agricultural purposes. The ecological value of regenerating second growth to forest-dwelling birds may largely depend on the age of the forest, associated vegetative structure, and when it is capable of sustaining avian demographics similar to those found in pristine forest.
Methods
To determine the influence of second growth age on bird demography, we estimated the annual survival of six central Amazonian bird species residing in pristine forest, a single 100 and a single 10 ha forest fragment, taking into consideration age of the surrounding matrix (i.e. …
A Phylogenomic Approach Reveals A Low Somatic Mutation Rate In A Long-Lived Plant., Adam J Orr, Amanda Padovan, David Kainer, Carsten Kulheim, Lindell Bromham, Carlos Bustos-Segura, William Foley, Tonya Haff, Ji-Fan Hsieh, Alejandro Morales-Suarez, Reed A Cartwright, Robert Lanfear
A Phylogenomic Approach Reveals A Low Somatic Mutation Rate In A Long-Lived Plant., Adam J Orr, Amanda Padovan, David Kainer, Carsten Kulheim, Lindell Bromham, Carlos Bustos-Segura, William Foley, Tonya Haff, Ji-Fan Hsieh, Alejandro Morales-Suarez, Reed A Cartwright, Robert Lanfear
Michigan Tech Publications
Somatic mutations can have important effects on the life history, ecology, and evolution of plants, but the rate at which they accumulate is poorly understood and difficult to measure directly. Here, we develop a method to measure somatic mutations in individual plants and use it to estimate the somatic mutation rate in a large, long-lived, phenotypically mosaic Eucalyptus melliodora tree. Despite being 100 times larger than Arabidopsis, this tree has a per-generation mutation rate only ten times greater, which suggests that this species may have evolved mechanisms to reduce the mutation rate per unit of growth. This adds to a …
Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin L. Pulster, Steven A. Murawski
Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin L. Pulster, Steven A. Murawski
Michigan Tech Publications
A multinational demersal longline survey was conducted on the Gulf of Mexico continental shelf over the years 2015 and 2016 to generate a Gulf-wide baseline of polycyclic aromatic hydrocarbon (PAH) concentrations in demersal fishes. Tilefish (Lopholatilus chamaeleonticeps) were sampled in all regions of the Gulf of Mexico for biometrics, bile, and liver. Tilefish liver was also obtained from surveys in the northwest Atlantic Ocean for comparison. Liver tissues (n ¼ 305) were analyzed for PAHs and select alkylated homologs using QuEChERS extractions and gas chromatography tandem mass spectrometry. Bile samples (n ¼ 225) were analyzed for biliary PAH metabolites using …
Integrating Wildlife Conservation Into Ecosystem Service Payments And Carbon Offsets: A Case Study From Costa Rica, Jared D. Wolfe, Pablo Elizondo
Integrating Wildlife Conservation Into Ecosystem Service Payments And Carbon Offsets: A Case Study From Costa Rica, Jared D. Wolfe, Pablo Elizondo
Michigan Tech Publications
Wildlife conservation is challenged by the expensive and cost prohibitive strategy of directly purchasing land to protect habitat at the landscape scale. An alternative mechanism used to protect habitat includes payments for ecosystem‐services (PES), where farmers and landowners are paid to manage their lands for a particular ecological service. Some of these easements are used to conserve a diversity of resources (i.e., water, soil, nutrient cycling, and biodiversity); however, the largest PES easement programs focus on carbon sequestration and are sold on international carbon markets as offsets. Here, we demonstrate that successfully protecting vulnerable habitat for wildlife can be achieved …
Growing Biofuel Feedstocks In Copper-Contaminated Soils Of A Former Superfund Site, Virinder Sidhu, Dibyendu Sarkar, Rupali Datta
Growing Biofuel Feedstocks In Copper-Contaminated Soils Of A Former Superfund Site, Virinder Sidhu, Dibyendu Sarkar, Rupali Datta
Michigan Tech Publications
Copper mining in the Upper Peninsula of Michigan in the mid-19th century generated millions of tons of mining waste, called stamp sand, which was deposited into various offshoots of Lake Superior. The toxic stamp sand converted the area into barren, fallow land. Without a vegetative cover, stamp sand has been eroding into the lakes, adversely affecting aquatic life. Our objective was to perform a greenhouse study, to grow cold-tolerant oilseed crops camelina (Camelina sativa) and field pennycress (Thlaspi arvense) on stamp sand, for the dual purpose of biofuel production and providing a vegetative cover, thereby decreasing erosion. Camelina and field …
Assessing The Ecosystem Services Of Various Types Of Urban Green Spaces Based On I-Tree Eco, Peihao Song, Gunwoo Kim, Audrey L. Mayer, Ruizhen He, Guohang Tian
Assessing The Ecosystem Services Of Various Types Of Urban Green Spaces Based On I-Tree Eco, Peihao Song, Gunwoo Kim, Audrey L. Mayer, Ruizhen He, Guohang Tian
Michigan Tech Publications
Urban green spaces play a crucial role in maintaining urban ecosystem sustainability by providing numerous ecosystem services. How to quantify and evaluate the ecological benefits and services of urban green spaces remains a hot topic currently, while the evaluation is barely applied or implemented in urban design and planning. In this study, super-high-resolution aerial images were used to acquire the spatial distribution of urban green spaces; a modified pre-stratified random sampling method was applied to obtain the vegetation information of the four types of urban green spaces in Luohe, a common plain city in China; and i-Tree Eco model was …
Effects Of Invasive Watermilfoil On Primary Production In Littoral Ones Of North-Temperate Lakes, Ryan R. Van Goethem, Casey Huckins, Amy Marcarelli
Effects Of Invasive Watermilfoil On Primary Production In Littoral Ones Of North-Temperate Lakes, Ryan R. Van Goethem, Casey Huckins, Amy Marcarelli
Michigan Tech Publications
Species invasions are changing aquatic ecosystems worldwide. Submerged aquatic macrophytes control lake ecosystem processes through their direct and indirect interactions with other primary producers, but how these interactions may be altered by macrophyte species invasions in temperate lakes is poorly understood. We addressed whether invasive watermilfoil (IWM) altered standing crops and gross primary production (GPP) of other littoral primary producers (macrophytes, phytoplankton, attached algae, and periphyton) in littoral zones of six Michigan lakes through a paired-plot comparison study of sites with IWM (standardized abundance 7–56%) compared to those with little or no IWM (standardized abundance 0–2%). We found that primary …
Biogeographic Patterns In Members Of Globally Distributed And Dominant Taxa Found In Port Microbial Communities., Ryan B Ghannam, Laura G. Schaerer, Timothy M. Butler, Stephen M Techtmann
Biogeographic Patterns In Members Of Globally Distributed And Dominant Taxa Found In Port Microbial Communities., Ryan B Ghannam, Laura G. Schaerer, Timothy M. Butler, Stephen M Techtmann
Michigan Tech Publications
We conducted a global characterization of the microbial communities of shipping ports to serve as a novel system to investigate microbial biogeography. The community structures of port microbes from marine and freshwater habitats house relatively similar phyla, despite spanning large spatial scales. As part of this project, we collected 1,218 surface water samples from 604 locations across eight countries and three continents to catalogue a total of 20 shipping ports distributed across the East and West Coast of the United States, Europe, and Asia to represent the largest study of port-associated microbial communities to date. Here, we demonstrated the utility …
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
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
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
What Is An Endangered Species?: Judgments About Acceptable Risk, Thomas Offer-Westort, Adam Feltz, Jeremy T. Bruskotter, John A. Vucetich
Michigan Tech Publications
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 …
Volume 4, Chapter 2-2: Stream Physical Factors Affecting Bryophyte Physiology And Growth, Janice M. Glime
Volume 4, Chapter 2-2: Stream Physical Factors Affecting Bryophyte Physiology And Growth, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-1: Stream Physical Factors Affecting Bryophyte Distribution, Janice M. Glime
Volume 4, Chapter 2-1: Stream Physical Factors Affecting Bryophyte Distribution, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-5: Streams: Life And Growth Forms And Life Strategies, Janice M. Glime
Volume 4, Chapter 2-5: Streams: Life And Growth Forms And Life Strategies, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-6: Streams: Physiological Adaptations - Water, Light, And Temperature, Janice M. Glime
Volume 4, Chapter 2-6: Streams: Physiological Adaptations - Water, Light, And Temperature, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-4: Streams: Structural Modifications - Rhizoids, Sporophytes, And Plasticity, Janice M. Glime
Volume 4, Chapter 2-4: Streams: Structural Modifications - Rhizoids, Sporophytes, And Plasticity, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-3: Streams: Structural Modifications - Leaves And Stems, Janice M. Glime
Volume 4, Chapter 2-3: Streams: Structural Modifications - Leaves And Stems, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Volume 4, Chapter 2-7: Streams: Physiological Adaptations - Nutrients, Photosynthesis, And Others, Janice M. Glime
Volume 4, Chapter 2-7: Streams: Physiological Adaptations - Nutrients, Photosynthesis, And Others, Janice M. Glime
Bryophyte Ecology Subchapters
No abstract provided.
Life History Variation In Migratory Salmonid Populations, Christopher Adams
Life History Variation In Migratory Salmonid Populations, Christopher Adams
Dissertations, Master's Theses and Master's Reports
Over the last 150 years, many of the native migratory salmonid populations in North America have declined or been extirpated, and their native habitats have been significantly altered. Life history variation within and among migratory fish populations plays an important role in their persistence when faced with changing habitat conditions. One of the most extreme life history events in salmonids is the movement from lotic to lentic habitats, a migration that can span long distances and different habitat types. Understanding the factors affecting migratory life histories expressed by individuals within a population play an important role in dynamics and habitat …