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Full-Text Articles in Life Sciences

Lichens Of Iller Creek: A Checklist For The Iller Creek Unit, A Division Of Dishman Hills Conservation Area, Spokane Valley, Wa, Devin M. Mumey, Giovanna Bishop, Jessica L. Allen Sep 2023

Lichens Of Iller Creek: A Checklist For The Iller Creek Unit, A Division Of Dishman Hills Conservation Area, Spokane Valley, Wa, Devin M. Mumey, Giovanna Bishop, Jessica L. Allen

2023 Symposium

The field of biodiversity documentation encompasses a broad range of research including new species discovery and description, compilation of species present in a given area, and investigation of interspecies interaction. In an era of increasingly devastating and rapid environmental change, documenting biodiversity has become increasingly important. Anthropogenic effects on urban-adjacent natural areas are especially significant, as they can cause numerous, often drastic, responses in ecosystems. Our objective here was to document the lichen biodiversity in a large urban-adjacent protected area: the Iller Creek Unit of the Dishman Hills Conservation Area in Spokane Valley, Washington. This unit encompasses a diversity of …


Monitoring The Effects Of Poultry Waste On Fishes And Macroinvertebrates In The Sabine River, Karley R. Parker Jul 2023

Monitoring The Effects Of Poultry Waste On Fishes And Macroinvertebrates In The Sabine River, Karley R. Parker

Biology Theses

Freshwater is a vital resource that provides life and sustainability for almost all organisms on Earth. It is important to maintain its health and protect it from emerging pollutants that pose a threat to the organisms that use it. Pollution continues to threaten the well-being of the environment’s freshwater sources all around the world that could lead to damaging effects in the future. The Sabine River is a major freshwater resource in the east Texas and western Louisiana areas that provides a habitat for thousands of organisms as well as other domestic uses for humans. In 2019, a waste discharge …


Temporal Changes In Biological Community Structure In Response To Wetland Restoration: A Study Based On Amphibians And Reptiles, Kayla Keith May 2023

Temporal Changes In Biological Community Structure In Response To Wetland Restoration: A Study Based On Amphibians And Reptiles, Kayla Keith

Honors Program Theses and Projects

Wetland degradation is a serious environmental concern worldwide. In the United States, over half of the wetland ecosystems have degraded since 1780, which can have numerous, lasting consequences with negative outcomes on ecosystems and human society alike. Ecological restoration can regain both the lost wetland acreage and functions. Both global and national scale interests in ecological restoration have trickled down, which has kindled the local and regional natural resource managers and conservation authorities to invest in restoration. Consequently, large-scale wetland restoration projects are now underway in southeastern Massachusetts, which has coincided with a decline in commercial cranberry farming in the …


Scale-Dependent Spatial Ecology Of Paleotropical Leaf Litter Ants (Hymenoptera: Formicidae), Lillian Germeroth, Theodore Sumnicht, Robin M. Verble Apr 2023

Scale-Dependent Spatial Ecology Of Paleotropical Leaf Litter Ants (Hymenoptera: Formicidae), Lillian Germeroth, Theodore Sumnicht, Robin M. Verble

Biological Sciences Faculty Research & Creative Works

The Grain for Which an Observer Conducts a Study is an Important Determinant of its Outcome. Studies of Ants Have Considered Spatial Grains Spanning from Single Meters to Entire Forest Ecosystems and Found Patterns Related to Nutrient Availability, Leaf Litter Depth, Disturbance, and Forest Composition. Here, We Examine a Bornean Leaf Litter Ant Community at Small (1–4 M) and Large (50–250 M) Spatial Scales and Consider the Differences in Community Structure using Structured 1 M2 Quadrats Sampled Via Leaf Litter Sifting and Berlese Extraction. We Found that Small-Scale Patterns in Ant Abundance and Richness Did Not Spatially Auto correlate within …


Ancyronyx Jhoanae Sp. Nov. (Coleoptera: Elmidae), A New Spider Riffle Beetle Species From Luzon, Philippines, And New Records For A. Tamaraw Freitag, 2013, Christalle Beatriz N. Seno, Hendrik Freitag Feb 2023

Ancyronyx Jhoanae Sp. Nov. (Coleoptera: Elmidae), A New Spider Riffle Beetle Species From Luzon, Philippines, And New Records For A. Tamaraw Freitag, 2013, Christalle Beatriz N. Seno, Hendrik Freitag

Biology Faculty Publications

Ancyronyx jhoanae sp. nov., a new species of genus Ancyronyx Erichson, 1847 from Luzon is described using an integrative taxonomic approach. Illustrations of habitus and diagnostic characters are provided. Molecular analysis of a fragment of the COI 5’-end was employed to support the morphological species concept. Differences from closely related species based on molecular and morphological data are discussed. First records of A. tamaraw Freitag, 2013 from Luzon are reported.


Do Regional Dna Barcode Databases Lead To More Efficient Specimen Identification?, Michael Kerr, Steven D. Leavitt Jan 2023

Do Regional Dna Barcode Databases Lead To More Efficient Specimen Identification?, Michael Kerr, Steven D. Leavitt

Library/Life Sciences Undergraduate Poster Competition 2023

DNA barcoding is a method for identifying specimens from specific regions of DNA. 1 Metabarcoding focuses on large, multi specimen scales. 2 These approaches rely on DNA databases for sequence identification, 2 but these databases often lack data from many species, 3 especially from poorly studied groups such as fungi 4 and lichens, which can lead to failure in specimen identification.


A Biodiversity Survey Of The Soil Crusts Of The Geographically Isolated San Nicholas Island, California, Usa And Description Of Species In Three Genera (Atlanticothix, Pycnacronema, Konicacronema) Previously Restricted To Brazil Using A Polyphasic Approach To Cyanobacterial Taxonomy, Brian Jusko Jan 2023

A Biodiversity Survey Of The Soil Crusts Of The Geographically Isolated San Nicholas Island, California, Usa And Description Of Species In Three Genera (Atlanticothix, Pycnacronema, Konicacronema) Previously Restricted To Brazil Using A Polyphasic Approach To Cyanobacterial Taxonomy, Brian Jusko

Masters Theses

San Nicholas Island, California, USA is a geographically-isolated island that experiences a semiarid climate and exhibits significant topographic and geologic diversity. Access to the island is restricted to the public and, as a result, only one previous study has been done on the algal biodiversity of its biological soil crusts. The previous study used morphology as the sole basis of species identification, and it was the aim of this study to corroborate and expand upon the results by including molecular data. Using 16S rRNA and 16S–23S ITS sequences and phylogenetic analyses, a diverse set of taxa were identified and are …


Macrolichen Inventory Of The Horse Mountain Botanical Area, Six Rivers National Forest, California, Usa, Sarah Norvell Conway Jan 2023

Macrolichen Inventory Of The Horse Mountain Botanical Area, Six Rivers National Forest, California, Usa, Sarah Norvell Conway

Cal Poly Humboldt theses and projects

Macrolichen diversity and community composition was determined for an area of high botanical interest in the Coast Ranges of Northern California – the Horse Mountain Botanical Area (HMBA) in Six Rivers National Forest. The Coast Ranges have been suggested to have high epiphytic macrolichen diversity, yet detailed site-specific macrolichen surveys are lacking for the area. Here we present comprehensive data on macrolichens of the HMBA integrated with environmental metadata at the landscape level. Twenty 0.4 ha sampling plots were positioned across the varying habitats of the HMBA and macrolichens were intensively sampled from all substrata. Out of 888 total collections, …


To Flee Or Not To Flee: How Range Dynamic Of Alpine Species Are Changing Through Time, Lian Noonan Jan 2023

To Flee Or Not To Flee: How Range Dynamic Of Alpine Species Are Changing Through Time, Lian Noonan

WWU Graduate School Collection

In response to anthropogenic climate change, alpine floras in particular have been forecasted to shift their ranges upslope and north, yet recent analyses have shown otherwise. While a handful of floras have been found to track the trajectory of predictive models, most floristic elements have remained in their historical ranges despite a changing climate. Therefore, to improve the accuracy of models predicting range shifts, I address the following questions: (1) are mountain floras spatially structured through time; and (2) how are range dynamics of mountain floras changing through time. To address these questions, this study analyzed the herbarium records of …


Are Biodiverse Communities More Resistant To Invasion? A Case Study With Marine Fouling Communities, Taylor Robert Bruntil Jan 2023

Are Biodiverse Communities More Resistant To Invasion? A Case Study With Marine Fouling Communities, Taylor Robert Bruntil

Cal Poly Humboldt theses and projects

The theory of biotic resistance predicts that more diverse communities should be less susceptible to invasion by novel species, but given the opposing results of multiple observational and experimental studies in marine systems, it is unclear how changes in environmental conditions can affect invasion success in communities that differ in diversity. I used marine fouling communities to test how the diversity of the species present in an initial community (hereafter termed “resident species”) affected the establishment and growth of all species not present in the initial communities (hereafter termed “novel species”) at two locations at the Eureka Public Marina, in …