A5055005735- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Identification and Quantification in Food
- Amphibian and Reptile Biology
- Microbial Community Ecology and Physiology
- Environmental DNA in Biodiversity Studies
- Freshwater macroinvertebrate diversity and ecology
- Aquatic Invertebrate Ecology and Behavior
- Ichthyology and Marine Biology
- Morphological variations and asymmetry
- Genetic diversity and population structure
- Plant and animal studies
- Species Distribution and Climate Change
- Ecology and biodiversity studies
- Wildlife Ecology and Conservation
- Isotope Analysis in Ecology
- Spider Taxonomy and Behavior Studies
- Animal Behavior and Reproduction
- Animal and Plant Science Education
- Soil and Water Nutrient Dynamics
- Sperm and Testicular Function
- Turtle Biology and Conservation
- Evolution and Paleontology Studies
University of Central Missouri
2017-2024
Government Communications Headquarters
2024
ORCID
2024
University of Oklahoma
2010-2022
John Wiley & Sons (United States)
2016
Ecological Society of America
2016
Southeastern Louisiana University
2010-2012
Abstract Aquatic biodiversity monitoring to inform conservation and management efforts in‐stream systems has increasingly begun incorporate environmental DNA (eDNA)‐based sampling methods. We conducted a comparison of eDNA metabarcoding traditional protocol combined seining electrofishing methods assess fish wadeable stream sites in six separate drainages the Ozark Highlands Missouri (USA). The study further focused on headwaters Meramec River, which included 11 seasonal (summer winter)....
Abstract Quantifying assemblage structure across spatio‐temporal scales is ecologically important and further aids in the understanding of community organisation processes. Currently, few studies have assessed generous magnitudes scale, influences processes (biotic abiotic) responsible for structuring assemblages are still questioned. Using hydrologic data collected over a 22‐year period from stretch river nearing 150 km, we examined fish structural patterns temperate coastal plain stream....
Abstract The efferent ducts of the Mediterranean Gecko, Hemidactylus turcicus (Gekkonidae) were investigated using light and electron microscopy. seminiferous tubules unite into a single rete testis tubule. divides 3–4 ductuli efferentes which all drain cranial portion ductus epididymis. All are most active during months December to August. is composed simple squamous epithelium with bifurcated nuclei labyrinthine network intercellular canaliculi. Ciliated nonciliated cells present, more...
Anthropogenic perturbations impact aquatic systems causing wide-ranging responses, from assemblage restructuring to recovery. Previous studies indicate the duration and intensity of disturbances play a role in dynamics In August 2011, Pearl River, United States, was subjected weak black liquor spill paper mill which resulted substantial loss fish large stretch main channel. We quantified resilience recovery structure impacted area following event. compared downstream (impacted) assemblages...
Understanding how biotic and abiotic processes influence community assembly is a fundamental aim in ecology. Although spatial scales at which communities are studied may affect the relative importance of such processes, influences on have not been thoroughly addressed. We tested scale affects inferences habitat filtering competitive exclusion darter (Percidae: Etheostomatinae) assemblages across four temperate stream systems. predicted would fine-scale assemblages, be more influential as...
The backwater lowland habitats of large rivers, like the Mississippi River in North America, present complex often inaccessible environments for traditional capture-based fish biodiversity sampling. Our knowledge assemblages fishes that occupy such are incomplete, and this can compromise management efforts. We employed environmental DNA (eDNA) metabarcoding methods to sample a bottom wetland system assess ichthyofaunal diversity, assemblage structure across habitat types, we compared our...
Abstract Anthropogenic stream impoundments often result in altered flow regimes and reservoir formations. Functional fish characteristics may change response to conditions, understanding the underlying mechanisms at work (e.g. natural selection phenotypic plasticity) is of great importance both evolutionary conservation contexts. Cyprinella lutrensis a widely distributed minnow native systems Missouri, U.S.A. Following impoundment Osage River, C. currently occurs resultant Truman Reservoir...
Summary Predators have long been recognised as important drivers of community structure, and there is a growing literature that suggests predation can affect invasion success by limiting survival or recruitment potential invaders. Effects apex predators are well known, but increasing evidence mesopredators may also success. In southern Oklahoma ( USA ), red shiners Cyprinella lutrensis , which considered highly invasive outside their native range) disappeared from several streams in they had...
Five specimens of the non-native three spot gourami (Osphronemidae: Trichogaster trichopterus) were collected from a small pond near northern coast Jamaica in June 2009. The collection represents first documentation this species Jamaica. Origin introduction is not known. Herein, we discuss occurrence and possible threats posed to island's native fish fauna.
The genus Paraneetroplus (Teleostei: Cichlidae) currently consists of 11 species that naturally occur from southern Mexico south to Panama. melanurus (Günther 1862) is found in the Lago de Petén system Guatemala, and P. synspilus (Hubbs 1935) Río Grijalva-Usumacinta system, other systems Mexico, Belize, Guatemala. Reported morphological differences between two nominal literature are vague but center around characteristics a dark band begins at caudal fin tapers anteriorly near mid-body. This...
Vieja melanura is a Neotropical cichlid occurring in the Petén-lake district systems of Guatemala, as well Río Grijalva-Usumacinta basin, and other Southern México, Belize, Guatemala. A caudal stripe, extending forward from peduncle, characteristic this species. This stripe sloped downward nearly all individuals V. melanura, but degree slope highly variable throughout its range. The shape has previously been used diagnosing differentiating between species Vieja. purpose study was to use...
We describe a new digitless scincid lizard of the genus Brachymeles from northern Luzon and Camiguin Norte islands in Philippines. This species belongs to bonitae Complex, both molecular morphological data confirm that this is distinct all other congeners. Formerly considered be single widespread species, group has been focus recent systematic reviews. Here we B. recognized currently constitute five species. ilocandia sp. nov. second seventeenth non-pentadactyl genus. The description brings...
Studies of the diversity Philippine amphibians and reptiles have resulted in continued description cryptic species. Species formerly thought to range across multiple recognized faunal regions are now considered be assemblages unique species, each restricted a single region. This pattern continues hold true when considering skinks genus Brachymeles. Recent studies numerous species with many exhibiting various degrees digit loss or limb reduction, as well suggesting that lineages still present...
A new species of slender skink is described from the Philippines. The endemic to Lubang Island, and assigned Brachymeles bonitae Complex based on phenotypic genetic data. Specimens were collected Island between 1991 2012, examined morphological data (qualitative traits, meristic counts, mensural measurements). Published sequence phylogenetic studies genus reveal be highly divergent congeners. ligtas sp. nov. differentiated other members a number distinct features, including small body size...
Anthropogenic disturbances are relatively common in freshwater systems; however, documenting and understanding disturbance-specific impacts on aquatic communities remains an area of needed focus. We examined the effects wastewater treatment plant (WWTP) effluent fish assemblage structure using 26 riffle sites positioned along two tributaries Niangua River, Missouri, USA (West Fork—WWTP present, East absent). Comparisons rarified species richness (i.e., interpolation extrapolation) indicated...
The backwater lowland habitats of large rivers, like the Mississippi River in North America, present complex and often inaccessible environments for traditional capture-based fish biodiversity sampling. Our knowledge assemblages fishes that occupy such is incomplete, this can compromise management efforts. We employed environmental DNA (eDNA) metabarcoding methods to sample a bottom wetland system assess ichthyofaunal diversity assemblage structure across habitat types, we compared our...
Examination of contemporary (ecological) and historical (evolutionary) relationships within fish assemblages may provide understanding the relative influences competitive exclusion habitat filtering assembly mechanisms. However, interpretation relationship patterns (e.g., even or clustered) must consider niche conservatism, ecological convergence, abundance weighting, spatial scale for proper understanding. The goals this study were to identify mechanisms in darter (Percidae:...
Abstract Globally, estuarine and marine fisheries have declined over the past century, a variety of approaches been employed in an attempt to improve fisheries, including development protected areas, implementation catch regulations, hatchery stocking, habitat augmentation. The focus this study was assess impact introduction artificial reefs on fish assemblages northern Gulf Mexico (nGOM). Unfortunately, assessing success has problematic due high turbidity region difficulty using traditional...