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Articles 391 - 420 of 2126

Full-Text Articles in Ecology and Evolutionary Biology

A Cladoxylopsid With Complex Vascular Architecture From The Early Devonian Battery Point Formation (Québec, Canada), Jessica Chu Jan 2023

A Cladoxylopsid With Complex Vascular Architecture From The Early Devonian Battery Point Formation (Québec, Canada), Jessica Chu

Cal Poly Humboldt theses and projects

Cladoxylopsids are seed-free plants that formed the world’s earliest forests and gave rise to horsetails (sphenopsids), but their evolutionary origins are poorly understood. Here, I describe a new Early Devonian cladoxylopsid from the Emsian (400-395 Ma) Battery Point Formation (Québec, Canada). The structural features of this plant indicate taxonomic affinity to cladoxylalean cladoxylopsids and its phylogenetic position supports placement in genus Cladoxylon (the proposed name, Cladoxylon kespekianum sp. nov., to be formalized by peer-reviewed publication). Specimens of this plant are permineralized in calcium carbonate and were studied using the acetate peel technique with light and electron microscopy. Cladoxylon kespekianum is …

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Placing The Evolutionary History Of Desmognathus Salamanders In Context: A Phylogeographic Approach, Kara Jones Jan 2023

Placing The Evolutionary History Of Desmognathus Salamanders In Context: A Phylogeographic Approach, Kara Jones

Theses and Dissertations--Biology

Patterns of genetic variation do not arise in a vacuum but are instead shaped by the interplay between evolutionary forces and ecological constraints. Here, I use a phylogeographic approach to examine the role that ecology played in lineage divergence in the Desmognathus quadramaculatus species complex (Family: Plethodontidae), which consists of three nominal species: D. quadramaculatus, D. marmoratus, and D. folkertsi. Previous phylogenetic studies have shown that individuals from these species do not form clades based on phenotype. My approach to reconciling phylogenetic discordance was two-fold, using (1) genome-wide markers to provide insight into the …

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Attack Of The Clones: Elucidating The Role Of Clonality In The Invasion Success Of Carpobrotus Edulis, Eduardo Luis Cruz Jan 2023

Attack Of The Clones: Elucidating The Role Of Clonality In The Invasion Success Of Carpobrotus Edulis, Eduardo Luis Cruz

Electronic Theses, Projects, and Dissertations

Transcriptomics is a modern technique in genomics that utilizes RNA sequences to get a snapshot of genetic expression. This is a powerful tool in non-model species lacking a reference genome. Thus, the application of comparative transcriptomics has the potential to help us elucidate the evolutionary mechanisms that facilitate species invasion. Carpobrotus edulis is a prolific and widespread invasive succulent plant belonging to the Aizoaceae family. A native to South Africa, this species has become a dominant invader of many Mediterranean coastal areas. In this study, we leveraged the use of RNAseq to investigate evolutionary changes among invasive populations. RNA-seq data …

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Investigation Of The Segment Polarity Network In The Tardigrade Hypsibius Exemplaris, Taylor R. Harrison Jan 2023

Investigation Of The Segment Polarity Network In The Tardigrade Hypsibius Exemplaris, Taylor R. Harrison

UNF Graduate Theses and Dissertations

Segmentation has facilitated the evolution of the many forms of the panarthropods. Downstream regulation of segmentation is controlled by the highly conserved segment polarity network which includes the genes engrailed (en), hedgehog (hh), wingless (wg), cubitus interruptus (ci), patched (ptc), and smoothend (smo). While a high level of conservation has been seen in both the arthropods and onychophorans, only en has been described in any representatives of Tardigrada. Previous work had already established the loss of wg, which encodes for a Wnt ligand, in the tardigrade H. exemplaris …

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The Systems Measurement Of Mammalian Biotas, Part Two, Charles H. Smith, Patrick Georges, Ngoc Nguyen Jan 2023

The Systems Measurement Of Mammalian Biotas, Part Two, Charles H. Smith, Patrick Georges, Ngoc Nguyen

Faculty/Staff Personal Papers

For a recent publication, the authors identified a seven-region model of mammal family distribution patterns, in which each unit contributes equally to the system’s overall statistical characteristics of diversity, despite its individual units having measurably different levels of diversity and endemism. This systemization presents a highly efficient descriptive model that can possibly be interpreted as a form of natural classification. An additional analysis of the same mode is described here, in which the seven-region model of the distribution of mammal families’ spatial affinities is shown to closely approach a most-probable-state arrangement, as assessed through combinatorics, raising some important questions about …

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Genetic And Environmental Contributions To Wolbachia-Induced Cytoplasmic Incompatibility, Kelley Van Vaerenberghe Jan 2023

Genetic And Environmental Contributions To Wolbachia-Induced Cytoplasmic Incompatibility, Kelley Van Vaerenberghe

Graduate Student Theses, Dissertations, & Professional Papers

Maternally-transmitted Wolbachia infect the cells of most insect species, but their frequencies in host populations vary. While much of their success can be attributed to their ability to manipulate host reproduction, these manipulations are context-dependent, varying due to several biotic and abiotic factors. Wolbachia’s most common manipulation, cytoplasmic incompatibility (CI), is a conditional sterility phenotype where male-female host compatibility depends on their infection status. Specifically, CI occurs when infected males produce modified sperm that cause increased embryonic lethality unless the female carries a similar infection. Rescuing their eggs from CI increases the relative fitness of infected females, promoting Wolbachia spread …

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Plant Sentience? Between Romanticism And Denial: Science, Miguel Segundo-Ortin, Paco Calvo Jan 2023

Plant Sentience? Between Romanticism And Denial: Science, Miguel Segundo-Ortin, Paco Calvo

Animal Sentience

A growing number of non-human animal species are being seriously considered as candidates for sentience, but plants are either forgotten or explicitly excluded from these debates. In our view, this is based on the belief that plant behavior is hardwired and inflexible and on an underestimation of the role of plant electrophysiology. We weigh such assumptions against the evidence to suggest that it is time to take seriously the hypothesis that plants, too, might be sentient. We hope this target article will serve as an invitation to investigate sentience in plants with the same rigor as in non-human animals.

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Quantitative Song Variety In Relation To Genotype In A Hybridizing Chickadee Population, Shelby Madison Palmer Jan 2023

Quantitative Song Variety In Relation To Genotype In A Hybridizing Chickadee Population, Shelby Madison Palmer

Graduate Theses/Dissertations

The Black-capped chickadee (Poecile atricapillus) and Carolina chickadee (P. carolinensis) are North American songbird species that hybridize in a narrow contact zone stretching latitudinally from New Jersey to Kansas, USA. The association between genetic ancestry and song type in this hybrid zone has been studied independently several times and found to be minimal or absent, likely due to the influence of cultural transmission on learned song in the oscine passerine clade to which the chickadees belong. Despite this, the song of both species remains remarkably distinct in allopatry, suggesting a genetic constraint on certain qualities of …

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Between Choice And Compulsion: An Examination And Critique Of The Evolution Of 'Original Sin', Matthew James Wynn Jan 2023

Between Choice And Compulsion: An Examination And Critique Of The Evolution Of 'Original Sin', Matthew James Wynn

Graduate Theses/Dissertations

“Why are we the way that we are?” is one of the hardest questions to answer because it requires grasping the origin of human beings. This has left philosophers and theologians in century-long debates on forming a “cosmogony of ontology” (i.e., how the origin of the universe informs the human condition). The concept, “original sin” was developed by a North African theologian named Augustine (354 – 430 CE). Augustine’s reading of Genesis 3, and inaccurate translation of Romans 5:12, taught that a person is born morally culpable for a fault antecedent to their existence. This way of thinking about the …

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A Comparison Of Seasonal Reproductive Pattern In Two Sympatric Darters Of The Simoperca Clade, Etheostoma Duryi And Etheostoma Simoterum, Tiffany Bell, Elizabeth Cantrell, Bruce Stallsmith Dec 2022

A Comparison Of Seasonal Reproductive Pattern In Two Sympatric Darters Of The Simoperca Clade, Etheostoma Duryi And Etheostoma Simoterum, Tiffany Bell, Elizabeth Cantrell, Bruce Stallsmith

Southeastern Fishes Council Proceedings

We present results from an examination of the seasonal reproductive patterns of two closely related sympatric darter species of the Simoperca clade, Etheostoma duryi and Etheostoma simoterum. Most members of the genus Etheostoma exhibit striking sexual dimorphism, making reproductive strategy a logical point of study. Monthly collections of specimens over a one-year period were performed at a single site on the Flint River near Huntsville, Alabama. Standard length and gross somatic mass were measured for all individuals. Sex ratio was examined for possible skew. Measures of reproductive effort were monthly means of gonadosomatic index of both sexes, total oocyte count, …

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Effects Of Riverine Barriers On Avian Evolution In The Amazon Basin, Andre Eugene Moncrieff Dec 2022

Effects Of Riverine Barriers On Avian Evolution In The Amazon Basin, Andre Eugene Moncrieff

LSU Doctoral Dissertations

The high biodiversity found in the Amazon Basin has long captivated the attention of naturalists and evolutionary biologists seeking to explain its origins. Early observations by Alfred Wallace highlighted the role of rivers in delimiting the geographic ranges of many species; furthermore, where rivers narrow towards their headwaters, he noted that some species cross rivers freely. A major goal of this dissertation is to investigate how these and other observations about riverine barriers might inform our understanding of how speciation unfolds in Amazonia. My approach involved generating genomic data with dense geographic sampling for manakins in the genus Lepidothrix, …

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A Report Of Intraguild Predation By Orthochirus Sp. On Hottentotta Tamulus (Scorpiones: Buthidae) In Maharashtra, India, Mihir Joshi, Shubhankar Deshpande Dec 2022

A Report Of Intraguild Predation By Orthochirus Sp. On Hottentotta Tamulus (Scorpiones: Buthidae) In Maharashtra, India, Mihir Joshi, Shubhankar Deshpande

Euscorpius

We report an event of intraguild predation by Orthochirus sp. feeding on a juvenile individual of Hottentotta tamulus (Fabricius,1798) from Maharashtra, India. This is the first report of intraguild predation among Indian scorpions.

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The Genus Barbaracurus In Saudi Arabia (Scorpiones: Buthidae), With Description Of A New Species, František Kovařík, Graeme Lowe, František Šťáhlavský, Pavel Just Dec 2022

The Genus Barbaracurus In Saudi Arabia (Scorpiones: Buthidae), With Description Of A New Species, František Kovařík, Graeme Lowe, František Šťáhlavský, Pavel Just

Euscorpius

The genus Barbaracurus (Scorpiones: Buthidae) is recorded for the first time from Saudi Arabia. B. yemenensis Kovařík et al., 2018 was found in the extreme southwest of the country, near its border with Yemen. The diagnosis of the species is emended based on the finding of adult males and a large adult female. The proximal margins of the pedipalp fingers of male B. yemenensis are strongly undulate, leaving a gap with the fingers closed. This character differentiates it from all other species of Barbaracurus in the Arabian Peninsula. A second species, B. kabateki sp. n. from Saudi Arabia is described …

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Influence Of Environmental Factors On Surface Activity Of Paruroctonus Marksi (Scorpiones: Vaejovidae) In The Mojave Desert, Zia Nisani, Destiny Frederick, Alejandro Garcia-Plascencia, Daian Lopez, Robert Miller, Linhsan Trinh-Nguyen Dec 2022

Influence Of Environmental Factors On Surface Activity Of Paruroctonus Marksi (Scorpiones: Vaejovidae) In The Mojave Desert, Zia Nisani, Destiny Frederick, Alejandro Garcia-Plascencia, Daian Lopez, Robert Miller, Linhsan Trinh-Nguyen

Euscorpius

Many environmental factors may influence the activity pattern of scorpions in arid ecosystems. We investigated the seasonal variations of Paruroctonus marksi scorpion activity in the Mojave Desert (California, USA). Black light surveys were carried out within two 100 ×100 m plots from August 2017 to September 2018. The majority (85%) of scorpions were found in open areas compared with being in vegetation. The presence of P. marksi was positively correlated with both water vapor pressure and soil temperature, while moon illumination had no significant effect on P. marksi foraging behavior. Scorpions might be using humidity as an indicator of prey …

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A Subspecies-Level Database Of Amazonian Bird Distributions, With Inferences On Suture Zones And Conservation, Marco Antonio Rego Dec 2022

A Subspecies-Level Database Of Amazonian Bird Distributions, With Inferences On Suture Zones And Conservation, Marco Antonio Rego

LSU Doctoral Dissertations

Amazonia has the largest and most biodiverse tropical forest on the planet. However, the distributions of its species are still poorly understood, even for well-studied vertebrates such as birds. Available distribution maps for Amazonian birds often lack accuracy in delimiting the area where species occur. Existing distributional information for Amazonian birds is often limited to species-level level taxonomy, even though many Amazonian bird subspecies represent biological species. Here, I investigate the geographic distributions of 4,148 bird taxa (species and subspecies) using museum scientific specimens as the primary source of data. To build the data base I use more than 600,000 …

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Integrative Revision Of Five Genera Type Species For Zoanthidea To Bridge The Parataxonomy Gap, Jacob Colbert Dec 2022

Integrative Revision Of Five Genera Type Species For Zoanthidea To Bridge The Parataxonomy Gap, Jacob Colbert

All HCAS Student Capstones, Theses, and Dissertations

Cnidarian order Zoanthidea is a relatively understudied group of invertebrates inhabiting a diverse range of marine habitats. Over/During the last two decades, species descriptions within this order have largely been based on a novel molecular parataxonomic system that relies almost exclusively on DNA barcodes to detect and describe new species. DNA barcodes are short, conserved sequences that are readily compared across taxa and used to detect previously described species. The existing taxonomic system, based on anatomical analysis and the identification of evolutionarily informative characters for phylogenetic inference, has been recently replaced by molecular parataxonomy by some scientists/researchers. While molecular sequence …

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Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque Dec 2022

Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque

Symposium of Student Scholars

Populations of aerially insectivorous birds are declining throughout North America. Urbanization may indirectly contribute to this decline through its negative effects on populations of insects, an important food source in insectivores' diets, where low insect availability may be especially challenging for birds during breeding. How fluctuations in insect populations impact various species at higher trophic levels is an important area of current study for future conservation biology. Here, we examine whether nestling provisioning, brooding and guarding behaviors in a breeding bird—the European starling (Sturnus vulgaris)—may be altered depending on the relative insect availability in the environment. We found …

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Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel Dec 2022

Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel

All HCAS Student Capstones, Theses, and Dissertations

Increasing global ocean temperatures and frequency of marine heatwaves pose dire consequences for coral reefs. High temperatures often lead to disruptions in coral symbiosis resulting in coral bleaching, increasing the mortality of corals. However, corals can potentially avoid bleaching peril by associating with thermally tolerant symbionts. Here we provide a tool for understanding symbiosis network stability of Caribbean reef-building corals. We created a network of Caribbean hermatypic corals and their associated Symbiodiniaceae phylotypes. A bleaching model was applied to this network to test for resilience and robustness (R50) to thermal stress. It was also layered with trait data for coral …

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Alfred Russel Wallace Notes 24. Wallace At 200: Potential Subjects For Student Theses, Charles H. Smith Dec 2022

Alfred Russel Wallace Notes 24. Wallace At 200: Potential Subjects For Student Theses, Charles H. Smith

Faculty/Staff Personal Papers

The bicentennial of Alfred Russel Wallace’s birth in 2023 will likely produce a wide array of reviews of his life and work; here, we pause for a short look at some Wallace-related questions that might be adapted for student theses and dissertations. Some of the subjects treated fall in with established lines of research, while others are suggested by other Wallace interests or activities that have not been much explored.

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First Report Of Intraguild Predation In Scorpions (Scorpiones: Buthidae) From Turkey, Şahin Toprak, Rıdvan Kurt, Ersen A. Yağmur Nov 2022

First Report Of Intraguild Predation In Scorpions (Scorpiones: Buthidae) From Turkey, Şahin Toprak, Rıdvan Kurt, Ersen A. Yağmur

Euscorpius

Scorpions are predators of a wide range of invertebrates even including other scorpions. Larger species commonly prey on smaller species or juveniles. Here, we report three cases of intraguild predation of Mesobuthus mesopotamicus (Penther, 1912) and Compsobuthus matthiesseni (Birula, 1905) by Hottentotta saulcyi (Simon, 1880) (Scorpiones: Buthidae) in Şırnak Province, Turkey. These are the first cases reporting antagonistic interactions among scorpions in Turkey.

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Orthochirus Katerinae Sp. N. (Scorpiones: Buthidae) From Saudi Arabia, František Kovařík, Pavel Just Nov 2022

Orthochirus Katerinae Sp. N. (Scorpiones: Buthidae) From Saudi Arabia, František Kovařík, Pavel Just

Euscorpius

We describe a new species Orthochirus katerinae sp. n. from Saudi Arabia, previously cited as Orthochirus innesi Simon 1910, ssp. ?, the name many years used as an ‘umbrella’ for various Orthochirus from North Africa and Arabia. The new species is described based on males characterized mainly by: total length 26–30 mm; pectinal teeth number 16–20; movable finger of pedipalps with 7–8 rows of denticles, 8–9 ID and 7 OD; tarsomere I of legs I–III with 3–5 long setae; ratio length/width of metasoma V 1.13–1.16; pedipalp femur length/width ratio 3.30–3.32.

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Internal Vertebral Morphology Of Bony Fishes Matches The Mechanical Demands Of Different Environments, Dana Baxter, Karly E. Cohen, Cassandra M. Donatelli, Eric D. Tytell Nov 2022

Internal Vertebral Morphology Of Bony Fishes Matches The Mechanical Demands Of Different Environments, Dana Baxter, Karly E. Cohen, Cassandra M. Donatelli, Eric D. Tytell

Engineering Faculty Articles and Research

Fishes have repeatedly evolved characteristic body shapes depending on how close they live to the substrate. Pelagic fishes live in open water and typically have narrow, streamlined body shapes; benthic and demersal fishes live close to the substrate; and demersal fishes often have deeper bodies. These shape differences are often associated with behavioral differences: pelagic fishes swim nearly constantly, demersal fishes tend to maneuver near the substrate, and benthic fishes often lie in wait on the substrate. We hypothesized that these morphological and behavioral differences would be reflected in the mechanical properties of the body, and specifically in vertebral column …

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Exceptional Larval Morphology Of Nine Species Of The Anastrepha Mucronota Species Group (Diptera: Tephritidae), Erick J. Rodriguez, Gary J. Steck, Matthew R. Moore, Allen L. Norrbom, Jessica Diaz, Louis A. Somma, Raul Ruiz-Arce, Bruce D. Sutton, Norma Nolazco, Alies Muller, Marc A. Branham Nov 2022

Exceptional Larval Morphology Of Nine Species Of The Anastrepha Mucronota Species Group (Diptera: Tephritidae), Erick J. Rodriguez, Gary J. Steck, Matthew R. Moore, Allen L. Norrbom, Jessica Diaz, Louis A. Somma, Raul Ruiz-Arce, Bruce D. Sutton, Norma Nolazco, Alies Muller, Marc A. Branham

Papers in Evolution

Anastrepha is the most diverse and economically important genus of Tephritidae in the American tropics and subtropics. The striking morphology of the third instars of Anastrepha caballeroi Norrbom, Anastrepha crebra Stone, Anastrepha haplacantha Norrbom & Korytkowski, Anastrepha korytkowskii Norrbom, Anastrepha nolazcoae Norrbom & Korytkowski, and three newly discovered and as yet formally unnamed species (Anastrepha sp. Peru-82, Anastrepha sp. nr. protuberans, and Anastrepha sp. Sur-16), and the more typical morphology of Anastrepha aphelocentema Stone, are described using light and scanning electron microscopy. To contribute to a better understanding of the interspecific and intraspecific variation among species in the mucronota …

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Ecology And Evolution Of Social Information Use, Clare T. M. Doherty Nov 2022

Ecology And Evolution Of Social Information Use, Clare T. M. Doherty

Dartmouth College Ph.D Dissertations

Sociality is a strategy many animals employ to cope with their environments, enabling them to survive and reproduce more successfully than would otherwise be possible. When navigating their environments and making decisions, social individuals often use information provided by conspecifics (in the form of social cues and signals), thereby increasing the scope and reliability of the information they can gather. However, social information use may be influenced by many factors, including key differences in context across the physical and social environment. My thesis asks and answers a series of questions regarding the trade-offs in social information use across different contexts, …

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Reproductive Traits And Change In Body Shape Of Neonates In The Oak Forest Skink, Plestiodon Lynxe, Manuel Feria-Ortiz, Uri Omar García-Vázquez, Carlos Joaquín Pavón-Vázquez, Adrián Nieto-Montes De Oca Oct 2022

Reproductive Traits And Change In Body Shape Of Neonates In The Oak Forest Skink, Plestiodon Lynxe, Manuel Feria-Ortiz, Uri Omar García-Vázquez, Carlos Joaquín Pavón-Vázquez, Adrián Nieto-Montes De Oca

Publications and Research

Reproductive traits are critically important for understanding how organisms adapt to their respective environments. In this study, we provide information on relative litter mass (RLM) and other litter and neonate related characters of nine female Plestiodon lynxe captured in the field. We also recorded seven body dimensions in 16 neonates and 15 two-month juveniles, and on the basis of these dimensions we compared the body shape of these two age classes to detect changes in the proportions of body parts. The average litter size (4.55) is larger than that found in other viviparous species of Plestiodon, but smaller than …

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The Ecology And Evolution Of Species Rarity In Oaks (Quercus Spp.), Yingtong Wu Oct 2022

The Ecology And Evolution Of Species Rarity In Oaks (Quercus Spp.), Yingtong Wu

Dissertations

Rare species are susceptible to extinction due to ecological and genetic factors. Understanding the distribution, ecology, and evolution of rare species can provide useful information for effective conservation. To investigate species rarity, this dissertation focuses on a species-rich and ecologically diverse genus, Quercus (oaks). In Chapter 1, I aimed to understand how interactions between hosts and soil microbes contribute to habitat restriction in oak species. I performed a soil inoculum experiment on two pairs of sister oak species that show habitat divergence. I found that host-specific soil microbes contribute to habitat divergence and exclusion among sister species of oaks, but …

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Reanalysis Of The Yunnan Population Of Scorpiops Kubani With A Description Of A New Species, Scorpiops Lowei Sp. N. (Scorpiones: Scorpiopidae), Victoria Tang Oct 2022

Reanalysis Of The Yunnan Population Of Scorpiops Kubani With A Description Of A New Species, Scorpiops Lowei Sp. N. (Scorpiones: Scorpiopidae), Victoria Tang

Euscorpius

The Yunnan population of Scorpiops kubani (Kovařík, 2004) is reassessed based on recently collected specimens from this region. A misidentification of that species is revealed, which leads to a description of a new species, Scorpiops lowei sp. n.

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Alu Dimorphism At The Pv92 Locus Of Chromosome 16 Is In Equilibrium For University Student Population, James M. Brooks, Mackenzie L. Thackston Oct 2022

Alu Dimorphism At The Pv92 Locus Of Chromosome 16 Is In Equilibrium For University Student Population, James M. Brooks, Mackenzie L. Thackston

Journal of the South Carolina Academy of Science

Alu is a retrotransposable element, which refers to its ability to be copied and move from one region of DNA to another DNA region. At the PV92 locus of chromosome 16, Alu is a 300 bp dimorphic insert that can either be present or absent. It does not encode a protein product and has lost the ability to transpose. It is specific to humans, and differences in genotype and allele frequencies between human populations are important tools in understanding evolution. In this research, data was obtained and analyzed from 269 students at Charleston Southern University (CSU) belonging to four different …

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A New Species Of Scorpiops Peters, 1861 From Yunnan Province, China, With A Preliminary Review Of Its Congeners In Yunnan (Scorpiones: Scorpiopidae), Victoria Tang Oct 2022

A New Species Of Scorpiops Peters, 1861 From Yunnan Province, China, With A Preliminary Review Of Its Congeners In Yunnan (Scorpiones: Scorpiopidae), Victoria Tang

Euscorpius

A new species of Scorpiops Peters, 1861, Scorpiops tongtongi sp. n., is described from Yingjiang, Yunnan Province, China, based on a single adult female. The morphology of the new species is fairly distinguishable from other congeners in Yunnan even with unaided eye; it is characterized by the following combination of characters in female: a pair of moderately robust pedipalp chelae without proximal lobes, small median ocular tubercle, short superciliary carinae, less granulated tergites, proportionally elongate metasoma and relatively short and bulbous vesicle. The coloration of the new species also differs from other congeners in Yunnan by being brownish in …

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Phylogenetic Relationships Among Fishes In The Order Zeiformes Based On Molecular Data From Three Mitochondrial Loci, Lindsay Scarpitta Oct 2022

Phylogenetic Relationships Among Fishes In The Order Zeiformes Based On Molecular Data From Three Mitochondrial Loci, Lindsay Scarpitta

Master's Theses

The Zeiformes (dories) are mid-water or deep (to 1000 m) marine acanthomorph fishes with a global, circumtropical, and circumtemperate distribution. Some species have a near-worldwide distribution, while others appear to be regional endemics, e.g., near New Zealand. Six families, 16 genera, and 33 species are currently recognized as valid. Relationships among them, however, remain unsettled, especially in light of recent proposals concerning the phylogenetic placement of zeiforms within the Paracanthopterygii rather than allied with beryciforms or percomorphs. The present study uses mtDNA characters to investigate zeiform interrelationships given their revised phylogenetic placement and attendant changes to their close outgroups, carried …

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