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Articles 331 - 360 of 1684
Full-Text Articles in Ecology and Evolutionary Biology
Adaptive Plasticity Of Coloration In Response To Environmental Change, Karissa Coffield
Adaptive Plasticity Of Coloration In Response To Environmental Change, Karissa Coffield
Scholars Week
When rapid environmental changes occur, different selective forces can create phenotypic trade-offs in which a trait can provide fitness benefits or costs under different environmental conditions. Amphibians are particularly vulnerable to environmental change, and previous research has revealed that some species will plastically respond to variation in temperature and ultra-violet radiation (UVR) by altering their coloration. Divergent selection on coloration may change with elevation and climate induced shifts in temperature because high temperatures are likely to result in lighter color morphs but as elevation increases, UVR exposure increases leading to the prediction that darker color morphs will be more common. …
Senesced Leaves Of An Invasive Species (Lonicera Maackii) Alter Community Composition And Ecosystem Function In Experimental Wetlands, Cy Mott
2023 Midwest Ecology & Evolution Conference
Secondary compounds produced by terrestrial invasive plants can cross terrestrial-aquatic boundaries via senesced leaves, leading to altered patterns of aquatic biodiversity and ecosystem functioning. Prior attempts to examine the impacts of invasive leaves on wetland communities have primarily employed the use of leaf leachates and focal taxa inhabiting relatively low trophic positions, and additional studies are needed to examine impacts on higher-order consumers and potential additive/synergistic effects of leachates and leaf decomposition. Using cattle-tank mesocosms across multiple experiments, we observed that the addition of senescent leaves of Amur Honeysuckle (Lonicera maackii) to native leaves resulted in mass mortality …
The Effects Of Imposed Drought And Nutrient Availability On Soil Microbial Biomass And Enzyme Activity In A Long-Term Restored Grassland, Ashley A. Wojciechowski
The Effects Of Imposed Drought And Nutrient Availability On Soil Microbial Biomass And Enzyme Activity In A Long-Term Restored Grassland, Ashley A. Wojciechowski
2023 Midwest Ecology & Evolution Conference
Restoring agricultural lands back to grassland aims to reverse many negative impacts of agriculture on the ecosystem including nutrient export from soil and depletion of soil carbon. Planting prairie on agricultural soil promotes recovery of soil microbial biomass and their enzymes, which create demand for nitrogen by microbes to reduce the rate of nutrient cycling and loss. A complicating factor in the development of a restored grassland the influence of several anthropogenic global changes including increasing frequency of drought and nutrient enrichment. Drought has been found to negatively affect microbial biomass, soil enzyme activity and nutrient cycling. Nutrient (often N) …
Effects Of Extra-Pair Paternity On Provisioning Effort And Nest Defense In Male House Wrens (Troglodytes Aedon), Avery Dart
2023 Midwest Ecology & Evolution Conference
Some animals form socially monogamous pair bonds in which a male and female mate and raise young together. However, individuals within a socially monogamous pair bond may still mate with other individuals; this mating is defined as extra-pair mating (EPM). Extra-pair paternity (EPP) occurs when offspring arise from EPM. In wild birds, EPM is approximated by EPP. Males benefit from EPP by siring additional offspring without any investment aside from sperm, but the benefits of EPM for females are less clear. Females may gain fertility assurance, access to better foraging grounds, and nest protection from males, as males are incentivized …
Adaptive Plasticity Of Coloration In Response To Environmental Change, Karissa Coffield
Adaptive Plasticity Of Coloration In Response To Environmental Change, Karissa Coffield
2023 Midwest Ecology & Evolution Conference
When rapid environmental changes occur, different selective forces can create phenotypic trade-offs in which a trait can provide fitness benefits or costs under different environmental conditions. Amphibians are particularly vulnerable to environmental change, and previous research has revealed that some species will plastically respond to variation in temperature and ultra-violet radiation (UVR) by altering their coloration. Divergent selection on coloration may change with elevation and climate induced shifts in temperature because high temperatures are likely to result in lighter color morphs but as elevation increases, UVR exposure increases leading to the prediction that darker color morphs will be more common. …
Endophytic Fungi And Their Competitive Hierarchy And Effects Of Changing Environmental Nitrogen., Haley G. Bryant, Kylea R. Garces
Endophytic Fungi And Their Competitive Hierarchy And Effects Of Changing Environmental Nitrogen., Haley G. Bryant, Kylea R. Garces
2023 Midwest Ecology & Evolution Conference
Endophytes are fungi that live symbiotically within the roots of plants. These fungi can serve different functions within the roots, and are thought to form a competitive hierarchy that allows them to coexist. It is not well established how specific species act within this endophytic dynamic, especially with each other. This experiment looked to better understand these relationships through Grime’s C-S-R model; growing the extracted fungal species in different treatments: control, stress, low nitrogen, high nitrogen, and comparing each growth rate and biomass over a two-week period. The species looked at in this study were extracted from dominant dune-building grass …
Late Cretaceous Marine Vertebrates From The Tarrant Formation, Tarrant County, Texas U.S.A, Aaron Johnson, Kenshu Shimada
Late Cretaceous Marine Vertebrates From The Tarrant Formation, Tarrant County, Texas U.S.A, Aaron Johnson, Kenshu Shimada
2023 Midwest Ecology & Evolution Conference
The Tarrant Formation (middle Cenomanian: ca. 96 million years ago) is a stratigraphic member of the Upper Cretaceous Eagle Ford Group in Texas, U.S.A., and consists of calcareous sandstone formed near the East Texas Embayment of the Late Cretaceous Western Interior Seaway, an epicontinental seaway in North America. We examined vertebrate fossils from the Tarrant Formation based on specimens collected through surface collecting and bulk sampling from three localities in Tarrant County, Texas, including the type locality of a pachyrhizodontid fish, Polcynichthys lloydhilli. Our preliminary examination shows that the fossil fauna includes shark species such as Ptychodus anonymous, Archaeolamna sp., …
Pollinators And Flowering Resources In Louisville Urban Green Spaces, Sarah Hobbs
Pollinators And Flowering Resources In Louisville Urban Green Spaces, Sarah Hobbs
2023 Midwest Ecology & Evolution Conference
Urban Greenspaces can appear in many different forms such as parks, urban orchards, and community gardens. These spaces provide important ecosystem services such as enhanced biodiversity, improved soil health, and increased carbon sequestration. Greenspaces such as parks and community gardens have been relatively well studied in the last few decades compared to urban orchards, despite the multitude of ecosystem services that can be provided or enhanced by these orchards. We hypothesize that urban orchards will provide the optimal conditions for pollinator communities because urban orchards normally have the greatest variety of vegetation and flowering resources, which is positively correlated with …
Herbarium Records Reveal Sex-Specific Effects Of Climate Warming On Phenology Of Fragaria Virginiana, Ethan R. Richardson
Herbarium Records Reveal Sex-Specific Effects Of Climate Warming On Phenology Of Fragaria Virginiana, Ethan R. Richardson
2023 Midwest Ecology & Evolution Conference
Plant populations tend to be hermaphroditic, but in some cases can diverge into a dioecious sexual system, or one that possesses both male and female members. Prior studies show a correlation between sex systems evolution such as these and ecological variables. These variables impose challenges on plants' ability to propagate and in a dioecious population, males and females have been seen to respond differently to different environmental contexts. What is still being studied is the degree to which biogeography contributes to the sexual differentiation of dioecious species. While evidence supports the idea of a latitudinal gradient contributing to sexual differentiation, …
How Accurately Structure Can Identify Hybrids When Comparing Different Numbers Of Species And Marker Types And Numbers, Chloe Hendrikse
How Accurately Structure Can Identify Hybrids When Comparing Different Numbers Of Species And Marker Types And Numbers, Chloe Hendrikse
2023 Midwest Ecology & Evolution Conference
Hybridization is a common problem in conservation. It can be difficult to identify hybrid individuals but doing so is often necessary in order to make conservation recommendations. For example, botanical gardens and seed banks want to identify if individuals are hybrids of two or more species to determine if offspring could be used for conservation or restoration, and to analyze the risk of possible extinction via introgression. Our project looks at how well the program STRUCTURE can detect and cluster hybrids, their parent species, and other pure species, which we created using simulations. We build on past studies, which typically …
Air Pollution Is Associated With Increased Stress In Urban Songbirds, Reagan Earlywine
Air Pollution Is Associated With Increased Stress In Urban Songbirds, Reagan Earlywine
2023 Midwest Ecology & Evolution Conference
Air pollution has been suggested to be a major driver of decline in native bird populations. Understanding how air pollution affects avian physiology and how air pollution exposure may be reduced may help develop effective conservation solutions. Here we tested whether elevated air pollution exposure was associated with increased physiological stress response in free-living urban American robins, and whether urban vegetation mitigated this effect. Specifically, we asked whether the concentration of the stress-related glucocorticoid hormone corticosterone was predicted by exposure to two metrics of air pollution: nitrogen dioxide (NO2) and ultrafine particulates (UFPs); and two metrics of green …
Effect Of Functional Trait Variation On Bee Body Temperature, Gabriella A. Muller
Effect Of Functional Trait Variation On Bee Body Temperature, Gabriella A. Muller
2023 Midwest Ecology & Evolution Conference
Bees are both ecologically and economically important pollinators for maintaining agricultural production and the health of many diverse ecosystems. As our world continues to change, bee diversity and population numbers are declining due to increasing temperatures. Functional traits such as body size and coloration can mediate the effects of such harsh thermal conditions on insect performance. Specifically, bee body size can significantly impact thermal parameters, with larger bees gaining and losing heat more slowly than smaller bees due to higher surface area to volume ratios. To obtain a better understanding of these relationships, we studied the variation in body temperature …
Quantifying The Relationship Between Arbuscular Mycorrhizal Fungi And A Native And Invasive Thistle, Nicole Baker, Lucia Vera, Ian Rosales
Quantifying The Relationship Between Arbuscular Mycorrhizal Fungi And A Native And Invasive Thistle, Nicole Baker, Lucia Vera, Ian Rosales
2023 Midwest Ecology & Evolution Conference
Arbuscular mycorrhizal fungi (AMF) associate with 80% of vascular plant roots and are an important part of nutrient exchange. Our research quantified the relationship between (AMF) and native Pasture Thistle (Cirsium discolor) and invasive Canada Thistle (Cirsium arvense). We hypothesized that Pasture Thistle would have a stronger relationship with AMF than Canada Thistle because of the degraded mutualism hypothesis, which states that invasive species have reduced relationships with AMF. For our experiment, we grew inoculated and non-inoculated plants at 10 different levels of soil phosphorus concentrations. Pasture Thistle and Canada Thistle were both facultatively dependent upon …
An Optimal Patch Use Model For Nitrogen Foraging In Arbuscular Mycorrhizal Fungi, Xin Lin
An Optimal Patch Use Model For Nitrogen Foraging In Arbuscular Mycorrhizal Fungi, Xin Lin
2023 Midwest Ecology & Evolution Conference
Optimal Foraging Theory has been widely used to study animal foraging behaviors, but has seldom been applied to symbiotic microbes like arbuscular mycorrhizal (AM) fungi. To date we know little about how AM fungi make decisions to forage in different nutrient patches. To help address this gap we here apply Optimal Foraging Theory to understand how AM fungi forage for nitrogen. We focus on nitrogen because AM fungi need more nitrogen than their plant hosts and soil nitrogen availability can shift the relationship between AM fungi and their hosts from mutualism to parasitism. We present a stochastic dynamic programming model …
Effect Of Variable Canopy Cover On Floral Visitation, Toby Shaya
Effect Of Variable Canopy Cover On Floral Visitation, Toby Shaya
2023 Midwest Ecology & Evolution Conference
Pollinators provide essential services for ecosystem function. Studies aimed at understanding how availability of floral resources impacts pollinators find that canopy cover impacts bees indirectly by affecting the amount of floral resources in the forest understory and directly by changing the thermal environment in which they can thermoregulate. As ectotherms the maintenance of bee body temperature depends on the distribution of patches of sun and shade throughout a landscape, which can be dependent on canopy cover. The goals of this study were to understand how variable canopy cover drives floral visitation patterns in oak savanna found in the Oak Openings …
Scaling Global Urban Greenspace, Kyra J. Liedtke
Scaling Global Urban Greenspace, Kyra J. Liedtke
2023 Midwest Ecology & Evolution Conference
Cites are novel ecosystems. Understanding the complex interactions between urban abiotic and biotic attributes is important for managing future urban expansion. Using urban scaling theory (UST) combined with global datasets raises the prospect of deriving predictive rules for scaling urban greenspace with city size. Aspects of the city, such as greenspace, are influenced by several social and ecological factors that scale with a city's size. Empirical data from European cities showed superlinear scaling, in which greenspace increased disproportionately with city size. However, the comprehension of global greenspace scaling still needs to be understood. A macroecological perspective using a scaling approach …
Elevated Co2 Drives Community And Network Structural Change Within Foliar Microbiomes Of Soybean, Connor Morozumi
Elevated Co2 Drives Community And Network Structural Change Within Foliar Microbiomes Of Soybean, Connor Morozumi
2023 Midwest Ecology & Evolution Conference
Microbiomes within plants can play large roles in determining responses to stress or perturbation, increasingly common in a rapidly changing world. For example, foliar endophytes are known to increase stress tolerance to drought and decrease herbivory among many other effects. How these microbes are likely to respond to global change themselves is poorly understood. Global changes, such as increased atmospheric CO2, which can influence host plant physiological processes, have the potential to directly and indirectly alter microbiome community structure. Here, we assessed community and network structure of bacterial and fungal phyllosphere microbiomes within soybean (Glycine max). …
Preliminary Report On Fossil Marine Vertebrates From The Mid-Pfeifer Shale (Upper Cretaceous) From Central Kansas, Alison G. Mieczkowski
Preliminary Report On Fossil Marine Vertebrates From The Mid-Pfeifer Shale (Upper Cretaceous) From Central Kansas, Alison G. Mieczkowski
2023 Midwest Ecology & Evolution Conference
The Pfeifer Shale is a 93-million-years-old rock unit belonging to the Upper Cretaceous Greenhorn Limestone broadly distributed in central Kansas, where it formed in the Western Interior Seaway, a Late Cretaceous epicontinental seaway in North America. Here, we describe fossil marine vertebrates collected from the middle portion of the Pfeifer Shale at a locality in Russell County, Kansas. Surface-collected specimens are largely represented by teeth of some extinct sharks, such as Ptychodus, Cretoxyrhina, and Squalicorax, that are typical for rock units of the Western Interior Seaway immediately above and below the Pfeifer Shale. Examination of microscopic fossils …
Polyploidy’S Impact On Plant-Herbivore Dynamics: Evidence From Experiments With Water-Lily Aphids And Greater Duckweed, Hannah R. Assour
Polyploidy’S Impact On Plant-Herbivore Dynamics: Evidence From Experiments With Water-Lily Aphids And Greater Duckweed, Hannah R. Assour
2023 Midwest Ecology & Evolution Conference
Polyploidy, or whole-genome duplication, is a widespread mutational process in plants with a myriad of phenotypic and genotypic consequences. In addition to consequences incurred by the plant, polyploidy can potentially cascade to alter species interactions. Yet, knowledge of whether ploidy-induced variation has effects on plant-herbivore dynamics is scarce. Here, we test whether aphid herbivores exhibit preference for a diploid or polyploid host cytotype and whether ploidy impacts plant resistance and tolerance to aphids, measured as aphid and plant performance respectively. To answer these questions, we evaluated aphid choice and compared the effects of the water-lily aphid (Rhopalosiphum nymphaeae) …
Historical Climate-Influenced Shifts In Flower Shape And Production Of A Common Annual Plant, Orange Jewelweed (Impatiens Capensis), Amber M. Stanley
Historical Climate-Influenced Shifts In Flower Shape And Production Of A Common Annual Plant, Orange Jewelweed (Impatiens Capensis), Amber M. Stanley
2023 Midwest Ecology & Evolution Conference
Climate change is a major human-mediated stressor that has been altering temperature patterns across the globe since the Industrial Revolution. In the Eastern United States, it has been projected that the average annual temperature will increase by 3-5 degrees Celsius by the year 2100. Such environmental changes have the potential to disrupt key interactions between species. For example, the vast majority (ca. 90%) of flowering plants rely on animal pollinators to transfer pollen between individuals to reproduce. Higher temperatures cause many plant species to flower up to 3-4 weeks earlier in the year, but pollinator activity has not shifted with …
Microbe-Mediated Drought Responses In Plant Communties, Caleb Callahan, Jordan Ziss
Microbe-Mediated Drought Responses In Plant Communties, Caleb Callahan, Jordan Ziss
2023 Midwest Ecology & Evolution Conference
Microbial communities from drought environments have been observed to protect plants undergoing drought stress. A majority of studies have focused on single species; however, effects at a community level have yet to be thoroughly investigated. We asked how plant communities facing drought stress will differ in productivity when inoculated with microbe communities that have evolved under drought compared to well-watered conditions, as well as how biomass and trait responses vary across plant species. To investigate this, we used microbial communities from the rainfall manipulation LTER at Kellogg Biological Station to inoculate mesocosms simulating early successional grassland communities under drought or …
Bryophytes At Cave Entrances Across A Range Of Anthropogenic Disturbance, Morghan Mccool
Bryophytes At Cave Entrances Across A Range Of Anthropogenic Disturbance, Morghan Mccool
2023 Midwest Ecology & Evolution Conference
Cave entrances are critical ecosystems in their role as ecotones between the interior cave environment and the surrounding external environment. Bryophytes serve as ecosystem engineers of cave entrance microhabitats. This study piloted a method to quantify anthropogenic disturbance unique to cave entrances and characterize the bryophyte assemblages at caves in urban and other natural areas. Bryophytes and environmental variables were sampled from cave entrances; bryophytes were identified, alpha and beta diversity values were computed. So far, 144 species of bryophytes, 36 of which were state records, have been identified across 6 sites. By improving knowledge of bryophyte communities, park managers …
Patterns Of Neural Investment In Sensory Modalities Of Tropical Canopy And Understory-Dwelling Ants (Pseudomyrmex), Daniella Prince
Patterns Of Neural Investment In Sensory Modalities Of Tropical Canopy And Understory-Dwelling Ants (Pseudomyrmex), Daniella Prince
2023 Midwest Ecology & Evolution Conference
The neuroanatomy of insects reflects functional roles and cognitive capabilities. The high energetic cost of the development and maintenance of neural tissue constrains investment in brain compartments that receive and process sensory input. Thus, differential investment in sensory compartments should parallel selective pressures, including significant habitat parameters. We tested the hypothesis that ants occupying different vertical rainforest strata exhibit differential investment in visual and olfactory brain regions. We used confocal microscopy to examine immunostained brains of species with distinct nesting and foraging preferences: Pseudomyrmex boopis (understory; U), P. gracilis (understory and canopy; UC), and P. oculatus (canopy; C). We created …
Evolution Of A Genus Of Gall Wasp Kleptoparasites, Guerin E. Brown
Evolution Of A Genus Of Gall Wasp Kleptoparasites, Guerin E. Brown
2023 Midwest Ecology & Evolution Conference
Kleptoparasites do not directly parasitize their hosts but instead steal food and resources, reducing host fitness. Like direct parasites, kleptoparasites can be highly dependent on their hosts such that their evolutionary histories may be linked. Here, we study the evolution of a kleptoparasitic wasp genus, Synergus (Hymenoptera: Cynipidae: Synergini), in relation to their hosts, oak gall wasps (Hymenoptera: Cynipidae: Cynipini). Ovipositing oak gall wasps induce the formation of galls on oaks (Fagaceae) that provide food and shelter to one or more developing gall wasps. Galls induced by different gall wasp species are diverse in size, shape, color, and location …
Where The Wild Mushrooms Are: Species And Secondary Metabolite Diversity In Fungal Species On The Saint Mary’S College Campus, Lex K. Gilman
Where The Wild Mushrooms Are: Species And Secondary Metabolite Diversity In Fungal Species On The Saint Mary’S College Campus, Lex K. Gilman
2023 Midwest Ecology & Evolution Conference
Secondary metabolites in fungi have three main ecological functions: protection against predation, communication with other mushrooms, and assistance in pathogenic interactions. These compounds have also led to the common use of mushrooms as food and in traditional Chinese or other medicinal applications. However, there are currently few good resources for identifying mushroom species in North-Central Indiana. In addition, limited research exists on secondary metabolites in mushrooms. The objective of this research was to create a preliminary database of mushroom species at Saint Mary’s College and conduct preliminary research on the secondary metabolites of these local species. Fungal specimens were identified …
The Status Of Invasive Dusky Slug (Arion) Species In The Upper Great Lakes: A Molecular Approach, Olivia W. Hall
The Status Of Invasive Dusky Slug (Arion) Species In The Upper Great Lakes: A Molecular Approach, Olivia W. Hall
All NMU Master's Theses
I update the distribution of two cryptic slug species, Arion fuscus and Arion subfuscus, in the Upper Great Lakes of the United States using molecular identification methods. Arion fuscus has not previously been reported in the literature in this region, and Arion subfuscus has previously been reported as abundant. However, all previous distribution studies were determined using visual identification tools, which can result in misidentification between cryptic species. To molecularly re-examine these distribution maps, I used a mitochondrial ribosomal subunit 16S PCR amplification and subsequent SSpI and MfeI restriction enzyme digest to identify slug specimens. I collected slugs in …
Discovering Dune: Essays On Frank Herbert’S Epic Saga., Edited By Dominic J. Nardi And N. Trevor Brierly, G. Connor Salter
Discovering Dune: Essays On Frank Herbert’S Epic Saga., Edited By Dominic J. Nardi And N. Trevor Brierly, G. Connor Salter
Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature
G. Connor Salter reviews Discovering Dune: Essays on Frank Herbert’s Epic Saga, edited by Dominic J. Nardi and N. Trevor Brierly, considering its new contributions to studies of Frank Herbert's work. Essays included fit into four categories (Politics and Power, History and Religion, Biology and Ecology, and Philosophy, Choice and Ethics) and range from Herbert's use of ecology in Dune to how game theory may help explain certain characters' apparent ability to see the future. Discovering Dune also includes an appendix which contains the only up-to-date bibliography of Herbert's work (primary and secondary sources).
Effects Of Habitat Management On Rodent Diversity, Abundance, And Virus Infection Dynamics, Nathaniel Mull, Amy Schexnayder, Abigail Stolt, Tarja Sironen, Kristian M. Forbes
Effects Of Habitat Management On Rodent Diversity, Abundance, And Virus Infection Dynamics, Nathaniel Mull, Amy Schexnayder, Abigail Stolt, Tarja Sironen, Kristian M. Forbes
Biological Sciences Faculty Publications and Presentations
As anthropogenic factors continue to degrade natural areas, habitat management is needed to restore and maintain biodiversity. However, the impacts of different habitat management regimes on ecosystems have largely focused on vegetation analyses, with limited evaluation of downstream effects on wildlife. We compared the effects of grassland management regimes (prescribed burning, cutting/haying, or no active management) on rodent communities and the viruses they hosted. Rodents were trapped in 13 existing grassland sites in Northwest Arkansas, USA during 2020 and 2021. Rodent blood samples were screened for antibodies against three common rodent-borne virus groups: orthohantaviruses, arenaviruses, and orthopoxviruses. We captured 616 …
Heterospecific Anural Eavesdropping Cues, Lucia C. Maldonado, Hayley Lunn, Max Sprute, Andrew Wang, Ripley Conklin, Nolan Gentile, Conor Kramer, Lee Kats
Heterospecific Anural Eavesdropping Cues, Lucia C. Maldonado, Hayley Lunn, Max Sprute, Andrew Wang, Ripley Conklin, Nolan Gentile, Conor Kramer, Lee Kats
Seaver College Research And Scholarly Achievement Symposium
The ability to communicate within species is a trait utilized by every organism. Using cues conspecifically creates a better chance of survival for other members of the species and increases fitness overall. However, using cues heterospecifically also poses a great advantage as animals can eavesdrop on cues released by another species. Previous studies have recorded that eavesdropping is beneficial to prey species, such as squirrels reacting to bird calls and tadpoles reacting to visual and chemical cues to avoid predation. We asked how one local and one exotic species of frog would respond to cues emitted by another local species …
Morphological Differences Align With Habitat Partitioning Among Three Species Of Percina (Percidae: Actinopterygii) In The Roanoke River, Virginia, Michael M. Calvert, Steven L. Powers
Morphological Differences Align With Habitat Partitioning Among Three Species Of Percina (Percidae: Actinopterygii) In The Roanoke River, Virginia, Michael M. Calvert, Steven L. Powers
Southeastern Fishes Council Proceedings
The upper Roanoke River has three species of Percina (P. nevisense, Chainback Darter; P. roanoka, Roanoke Darter; and P. rex, Roanoke Logperch). Resource partitioning appears to be a key component of maintaining diverse fish assemblages with habitat and food partitioning cited as especially important in communities containing members of the same family. Some aspects of the diets of these species have been documented in the literature with only modest differences among them. Microhabitat data for adults of these species have also been published revealing differences in habitat occupied by each with P. roanoka living in the fastest, shallowest …