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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
Shadowed Image Particle Profiling Evaluation Recorder (Sipper) Plankton And Marine Snow Abundance And Distribution Data Collected Aboard Multiple Research Cruises In The Northeastern Gulf Of Mexico From 2010-05-12 To 2010-09-16, Kendra L. Daly, Andrew W. Remsen, Kurt Kramer
Shadowed Image Particle Profiling Evaluation Recorder (Sipper) Plankton And Marine Snow Abundance And Distribution Data Collected Aboard Multiple Research Cruises In The Northeastern Gulf Of Mexico From 2010-05-12 To 2010-09-16, Kendra L. Daly, Andrew W. Remsen, Kurt Kramer
C-IMAGE data
This dataset contains the abundance and distribution of marine snow, phytoplankton, zooplankton, and larval fish, along with environmental parameters, collected aboard several research vessels (RV Weatherbird II, MV Specialty Diver, RV Gordon Gunter) in the northeastern Gulf of Mexico from 2010-05-12 to 2010-09-16. A high speed Dalsa Piranha-2 line-scan camera and a pseudo-collimated LED generated light sheet was used to image the shadows and outlines of resolvable particles that passed through a 100 cm2 field of view. The operational optical resolution of the system was ~65 um. The camera was towed at speeds between 2-3 knots in an oblique profile …
Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou
Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou
IGC Proceedings (1993-2023)
No abstract provided.
The Influence Of Stochasticity, Landscape Structure And Species Traits On Abundant–Centre Relationships, Tad Dallas, Luca Santini
The Influence Of Stochasticity, Landscape Structure And Species Traits On Abundant–Centre Relationships, Tad Dallas, Luca Santini
Faculty Publications
Species have been commonly hypothesized to have high population densities in geographic areas which correspond to either the centre of the species geographic range or climatic niche (abundant–centre hypothesis). However, there is mixed empirical support for this relationship, and little theoretical underpinning. We simulate a species spreading across a set of replicated artificial landscapes to examine the expected level of support for abundant–centre relationships in geographic and niche space. Species niche constraints were modeled as a single axis which was related directly to population growth rates. We found strong evidence for abundant–centre relationships when populations follow deterministic growth, dispersal is …
Overgrazing Affects Arbuscular Mycorrhizae Diversity And Abundance In Patagonian Steppe, Natalie Von Dudinszky, M. N. Cabello, A. A. Grimoldi, S. Schalamuk, R. A. Golluscio
Overgrazing Affects Arbuscular Mycorrhizae Diversity And Abundance In Patagonian Steppe, Natalie Von Dudinszky, M. N. Cabello, A. A. Grimoldi, S. Schalamuk, R. A. Golluscio
IGC Proceedings (1993-2023)
No abstract provided.
Patterns Of Avian Net Avoidance, Kate Noah
Patterns Of Avian Net Avoidance, Kate Noah
Georgia College Student Research Events
Mist netting is the most popular field technique used to estimate avian species abundance. It can, however, provide a biased estimate of species abundance as not all birds are equally likely to be captured. This is partially due to net avoidance, the purposeful evasion of mist nets by birds. Net avoidance depends on several factors, including species, net conditions such as light exposure, and environmental conditions such as cloud cover. The purpose of this research is to explore which factors contribute to net avoidance at the bird banding station located at Panola Mountain State Park in Stockbridge, Georgia. I placed …
Determining Benthic Macroinvertebrate Abundance And Diversity In Two Arctic Lakes As Part Of An Experimental Lake Warming, Allie Huish
Biology Posters
Global climate change threatens the integrity of freshwater ecosystems across the globe. At higher latitudes these ecosystems are experiencing the highest rates of temperature increase related to climate change. Freshwater invertebrate communities are important sources of food for fishes and bioindicators helping us understand the health of entire ecosystems. Our research is part of a larger experiment which aims to artificially warm an arctic lake by 2-4 ⁰C, to try and determine the impact of rising temperatures on lake food webs and ecosystem function. Our objectives were to calculate benthic macroinvertebrate densities in two arctic lakes, Fog1 and Fog3 (one …
Range Extension For Dekay’S Brownsnake (Storeria Dekayi) In South-Central Nebraska, Macy K. Cool, Keith Geluso
Range Extension For Dekay’S Brownsnake (Storeria Dekayi) In South-Central Nebraska, Macy K. Cool, Keith Geluso
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Dekay’s Brownsnake (Storeria dekayi) generally occurs in southeastern parts of the state, where the species was known from 16 counties. Herein, we update the distribution of S. dekayi in the state and briefly comment on habitat and abundance from observations in September and October 2018. We documented 7 new county records that extend its distribution in south-central Nebraska. We observed that S. dekayi does not only reside in mesic wooded habitats in Nebraska but also occupies open environments, including areas with upland grasslands and row-crop agriculture. Dekay’s Brownsnake currently is listed as a species of concern …
First Estimates Of Greenland Shark (Somniosus Microcephalus) Abundances In Arctic Waters, Taryn Szalay
First Estimates Of Greenland Shark (Somniosus Microcephalus) Abundances In Arctic Waters, Taryn Szalay
Scientific Communication News
No abstract provided.
Evaluation Of Created Wetlands As Amphibian Habitat On A Reforested Surface Mine, Michaela M. Lambert
Evaluation Of Created Wetlands As Amphibian Habitat On A Reforested Surface Mine, Michaela M. Lambert
Theses and Dissertations--Forestry and Natural Resources
Reclaimed mines often lack pre-mining habitat due to soil compaction and lack of natural features. If soils are de-compacted and natural features restored, new habitats can be created, such as wetlands for amphibians. It is important to understand which factors affect amphibian use of wetlands to estimate the efficacy of created wetlands as habitat. I sampled 40 wetlands among 4 ages (2, 4, 6, and 8 years) on a reforested surface mine to: 1) characterize differences in wetland habitat across age classes, 2) estimate amphibian occupancy, 3) investigate estimated abundance of 4 amphibian species (Lithobates sylvaticus, L. clamitans, Notophthalmus …
Biological And Computational Studies Of The Structure And Function Of Pul103, A Human Cytomegalovirus Tegument Protein, Ashley N. Anderson
Biological And Computational Studies Of The Structure And Function Of Pul103, A Human Cytomegalovirus Tegument Protein, Ashley N. Anderson
Wayne State University Dissertations
Human cytomegalovirus (HCMV) is an enveloped, single segment, double-stranded DNA virus. HCMV infection causes disease in immunocompromised (HIV patients, transplant recipients) and immunodeficient (fetuses, neonates) populations. Current treatments are effective but are either limited in use or can lead to organ damage and/or antiviral resistance, and no vaccines are available. Additional antiviral targets are needed. HCMV pUL103 is a potential antiviral target. pUL103 is a conserved herpesvirus protein present in the tegument, layer of proteins and RNA between the envelope and capsid of HCMV virions. pUL103 helps reorganize cellular secretory machinery (Golgi, endosomes) to form the cytoplasmic virion assembly compartment …
Abundance And Occurrence Of Common Bottlenose Dolphins (Tursiops Truncatus) In Three Estuaries Of The Northwestern Gulf Of Mexico, Errol Ronje, Heidi Whitehead, Kevin Barry, Sarah Piwetz, Juliane Struve, Vincent Lecours, Lance Garrison, Randall S. Wells, Keith D. Mullin
Abundance And Occurrence Of Common Bottlenose Dolphins (Tursiops Truncatus) In Three Estuaries Of The Northwestern Gulf Of Mexico, Errol Ronje, Heidi Whitehead, Kevin Barry, Sarah Piwetz, Juliane Struve, Vincent Lecours, Lance Garrison, Randall S. Wells, Keith D. Mullin
Gulf and Caribbean Research
Current abundance estimates for populations of common bottlenose dolphins (Tursiops truncatus, Montagu, 1821) in bays, sounds, and estuaries are lacking throughout most of the northwestern Gulf of Mexico, including areas of Texas and western Louisiana. To address this issue, we conducted 92 small-boat photographic identification surveys covering ~2000 km2 and comprising ~11,000 km of track-line in winter and summer seasons in West Bay, TX (2014 – 2015, n = 25), the Galveston Bay, TX system (2016, n = 50), Sabine Lake, TX (2017, n = 17), and adjacent coastal waters. Individual dolphin encounter histories were constrained by …
Comparing Environmental Dna And Traditional Monitoring Approaches To Assess The Abundance Of Outmigrating Coho Salmon (Oncorhynchus Kisutch) In California Coastal Streams, Emerson Alan Kanawi
Comparing Environmental Dna And Traditional Monitoring Approaches To Assess The Abundance Of Outmigrating Coho Salmon (Oncorhynchus Kisutch) In California Coastal Streams, Emerson Alan Kanawi
Cal Poly Humboldt theses and projects
Environmental DNA (eDNA) has the potential to dramatically increase the information available to managers regarding species distribution and abundance. Collection of reliable survey information on fish abundance is essential to monitor population trends and restoration efforts for endangered and threatened species. In Northern California, coho salmon are a federally listed species and a focus of ongoing monitoring programs and restoration projects. I examined the feasibility of using eDNA to supplement, or replace, traditional outmigrating juvenile coho salmon monitoring approaches currently used at two existing coho salmon life-cycle monitoring stations. Over the spring of 2018 and spring of 2019, I collected …
Tardigrade Abundance In Relation To Urbanisation And Highly Anthropogenic Substrates, Thomas Mccarthy, Javier Delbarco-Trillo
Tardigrade Abundance In Relation To Urbanisation And Highly Anthropogenic Substrates, Thomas Mccarthy, Javier Delbarco-Trillo
Faculty Publications – Biological Sciences
Animals colonising urban environments are exposed to a series of novel stressors and ecological challenges, which can result in adaptations to alternative urban niches. Tardigrades are cosmopolitan invertebrates present in all types of ecosystems, including urban environments; and they can survive under extreme conditions, including periods of desiccation, thus allowing them to colonise novel harsh habitats. Tardigrades are thus a promising model to investigate the challenges and opportunities encountered by urban colonisers. Our aims were 1, to determine if tardigrade abundance in natural substrates (moss, lichen and leaf litter) differs between rural and urban sites and 2, to assess if …
Patterns Of Epiphytic Lichen Abundance On Aspen Stands In Proximity To Roads Of Varying Vehicular Traffic, D. Aragon, C. Castillo, J. Moffroid, G. Thomas
Patterns Of Epiphytic Lichen Abundance On Aspen Stands In Proximity To Roads Of Varying Vehicular Traffic, D. Aragon, C. Castillo, J. Moffroid, G. Thomas
Aspen Bibliography
Although present in nearly any wild space with available moisture and on a wide variety of substrates, lichen, and its importance as a bioindicator for an ecosystem, is often overlooked. As air pollution becomes a greater concern for flora, fauna, and even humans, the story told by lichen growth becomes more useful as we try to make sense of the downstream effects of anthropogenic contributions to poor air quality. One such human-driven pollutant is the level of emissions that result from vehicular travel. The Jackson Hole area has experienced a large increase in vehicular traffic in the past five to …
Metabolic Profiling Reveals Biochemical Pathways Responsible For Eelgrass Response To Elevated Co2 And Temperature, Carmen C. Zayas-Santiago, Albert Rivas-Ubach, Li-Jung Kuo, Nicholas D. Ward, Richard C. Zimmerman
Metabolic Profiling Reveals Biochemical Pathways Responsible For Eelgrass Response To Elevated Co2 And Temperature, Carmen C. Zayas-Santiago, Albert Rivas-Ubach, Li-Jung Kuo, Nicholas D. Ward, Richard C. Zimmerman
OES Faculty Publications
As CO2 levels in Earth’s atmosphere and oceans steadily rise, varying organismal responses may produce ecological losers and winners. Increased ocean CO2 can enhance seagrass productivity and thermal tolerance, providing some compensation for climate warming. However, the metabolic shifts driving the positive response to elevated CO2 by these important ecosystem engineers remain unknown. We analyzed whole-plant performance and metabolic profiles of two geographically distinct eelgrass (Zostera marina L.) populations in response to CO2 enrichment. In addition to enhancing overall plant size, growth and survival, CO2 enrichment increased the abundance of Calvin Cycle and …