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Articles 211 - 240 of 1029
Full-Text Articles in Evolution
Molecular Phylogeny Of Cave Dwelling Eremogryllodes Crickets (Orthoptera, Myrmecophilidae) Across Zagros Mountains And Southern Iran, Mohadeseh Sadat Tahami, Mina Hojat-Ansari, Anna Namyatova, Saber Sadeghi
Molecular Phylogeny Of Cave Dwelling Eremogryllodes Crickets (Orthoptera, Myrmecophilidae) Across Zagros Mountains And Southern Iran, Mohadeseh Sadat Tahami, Mina Hojat-Ansari, Anna Namyatova, Saber Sadeghi
International Journal of Speleology
Recently, several new species and subspecies from the genus Eremogryllodes Chopard, 1929 (Insecta: Orthoptera: Myrmecophilidae) inhabiting caves of Iran, have been described based on morphology. The high variation of genitalia structure along with high similarity of external morphology between populations hamper the precise species identification. Thus, molecular approaches are critical to determine the taxonomic positions of species/subspecies of this genus. Here we provide the molecular phylogeny, based on the 16S rRNA mitochondrial gene, of recently described species of Eremogryllodes along with some unidentified specimens from the same region. The results support the monophyly of the family Myrmecophilidae. The topology of …
A Rare Telson Anomaly In Parabuthus Liosoma (Ehrenberg, 1828) (Scorpiones: Buthidae), Abdulaziz R. Alqahtani, Ahmed Badry
A Rare Telson Anomaly In Parabuthus Liosoma (Ehrenberg, 1828) (Scorpiones: Buthidae), Abdulaziz R. Alqahtani, Ahmed Badry
Euscorpius
A rare anomaly of telson vesicle with two functional aculei is observed and discussed in a Parabuthus liosoma (Ehrenberg, 1828) specimen collected from Jizan, Saudi Arabia.
An Anomaly Of Chelicera In Scorpio Kruglovi Birula, 1910 (Scorpiones: Scorpionidae), Ersen A. Yağmur, Mehmet S. Kılıç, Ömer Yılmaz
An Anomaly Of Chelicera In Scorpio Kruglovi Birula, 1910 (Scorpiones: Scorpionidae), Ersen A. Yağmur, Mehmet S. Kılıç, Ömer Yılmaz
Euscorpius
An anomaly in cheliceral dentition of the fixed finger is recorded in the scorpion Scorpio kruglovi Birula, 1910. This rare teratological anomaly herein is described and illustrated.
On R. Kinzelbach’S Euscorpiid Specimens From Turkey Deposited In The Naturhistorisches Museum Mainz, Germany (Scorpiones: Euscorpiidae), Ersen A. Yağmur
On R. Kinzelbach’S Euscorpiid Specimens From Turkey Deposited In The Naturhistorisches Museum Mainz, Germany (Scorpiones: Euscorpiidae), Ersen A. Yağmur
Euscorpius
I examined the specimens of Euscorpiidae collected by R. Kinzelbach in Turkey in the 1970s and deposited in the Naturhistorisches Museum Mainz (NMM), Germany. According to the current taxonomy, one “Euscorpius carpathicus” specimen from the İzmir Province is identified as E. avcii; two “E. carpathicus” specimens from the Mersin Province are identified as E. koci; and one “E. germanus mingrelicus” specimen from the Düzce Province is identified as Alpiscorpius phrygius.
The First Record Of Euscorpius Lesbiacus Tropea Et Al., 2020 (Scorpiones: Euscorpiidae) In Turkey, Ersen A. Yağmur
The First Record Of Euscorpius Lesbiacus Tropea Et Al., 2020 (Scorpiones: Euscorpiidae) In Turkey, Ersen A. Yağmur
Euscorpius
The scorpion species Euscorpius lesbiacus Tropea et al., 2020, previously known only from Lesvos Island (Greece), is recorded for the first time from the İzmir Province, Turkey. Detailed illustrations of E. lesbiacus are given.
James Davidson Fawcett (1933–2020): Imbibing With The Kiwi, Louis A. Somma
James Davidson Fawcett (1933–2020): Imbibing With The Kiwi, Louis A. Somma
Papers in Herpetology
An obituary and summary of the life of James D. Fawcett (1933-2020), herpetologist and instructor and professor of Biology at University of Nebraska at Omaha, 1972-2015. Includes bibliography of his works, list of master's theses chaired, and recollections of former students.
Somalibuthus Sabae Sp. N., A New Buthid Scorpion From Kenya (Scorpiones: Buthidae), František Kovařík, Laban Njoroge
Somalibuthus Sabae Sp. N., A New Buthid Scorpion From Kenya (Scorpiones: Buthidae), František Kovařík, Laban Njoroge
Euscorpius
The poorly known buthid genus Somalibuthus Kovařík, 1998, is recorded for the first time from Kenya, with the description of a new species, S. sabae sp. n., from Kiwayu Island in the Kiunga Marine National Reserve. Based on a detailed study of the new materials, a revised diagnosis is given for the genus. Several generic characters suggest affinities with three other genera of small buthids found in the Horn of Africa: Neobuthus Hirst, 1911, Gint Kovařík, Lowe, Plíšková et Šťáhlavský, 2013, and Lanzatus Kovařík, 1998.
Habitat Characteristics Of Two Scorpion Species, Liocheles Australasiae (Fabricius, 1775) And Isometrus Maculatus (De Geer, 1778) In Miyako Islands, Japan, Kazusa Kawai
Euscorpius
Scorpion surveys were conducted in the five islands: Miyakojima, Ikemajima, Kurimajima, Irabujima, and Shimojishima (Miyako Islands, part of Nansei/Ryukyu Islands of Japan). Eight individuals of Liocheles australasiae (Hormuridae) and 16 individuals of Isometrus maculatus (Buthidae) were observed in a total of 10 points on four islands, except Ikemajima. The localities of both species are recorded in this survey, focusing on altitude, distance from the nearest coast, and sunlight. The lowest temperatures in the habitat are also examined, and the cold tolerance of the species is discussed.
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxvi. Records Of Hottentotta Polystictus (Pocock, 1896), With Descriptions Of H. Haudensis Sp. N. And H. Nigrimontanus Sp. N. (Buthidae) From Somaliland, František Kovařík, Graeme Lowe
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxvi. Records Of Hottentotta Polystictus (Pocock, 1896), With Descriptions Of H. Haudensis Sp. N. And H. Nigrimontanus Sp. N. (Buthidae) From Somaliland, František Kovařík, Graeme Lowe
Euscorpius
The distribution of Hottentotta polystictus (Pocock, 1896) is summarized according to recently confirmed records. Two new species, Hottentotta haudensis sp. n. and H. nigrimontanus sp. n. from the Somaliland, are described, compared with H. polystictus, and fully illustrated with color photos showing their morphology, habitus and collection areas. H. haudensis sp. n. is the smallest known species of the genus Hottentotta Birula, 1908, while H. nigrimontanus sp. n. is larger than H. polystictus.
Predation Of Ananteris Spp. (Scorpiones: Buthidae) By Ants And A Social Wasp (Hymenoptera: Formicidae, Vespidae) In Panama, Central America, Roberto Miranda, Luis F. De Armas, Roberto A. Cambra
Predation Of Ananteris Spp. (Scorpiones: Buthidae) By Ants And A Social Wasp (Hymenoptera: Formicidae, Vespidae) In Panama, Central America, Roberto Miranda, Luis F. De Armas, Roberto A. Cambra
Euscorpius
Two events of predation on Ananteris spp. were observed in the Parque Nacional Darién, Darién Province, Panama. The first case involved the social wasp Agelaia centralis (Cameron, 1907) (Vespidae); the second one, a ponerine ant Leptogenys cf. cuneata Lattke, 2011 (Formicidae). This is the first time that predation by a social wasp on a scorpion is observed. They also represent the first recorded predators for Panamanian Ananteris species.
Fetilinia Dentator Gen. Et Sp. N. From Pakistan (Scorpiones: Buthidae), Graeme Lowe, František Kovařík
Fetilinia Dentator Gen. Et Sp. N. From Pakistan (Scorpiones: Buthidae), Graeme Lowe, František Kovařík
Euscorpius
We describe from northern Pakistan a new buthid genus Fetilinia gen. n., monotypic with type species F. dentator sp. n., belonging to the Palaearctic ‘Buthus’ group. It bears some similarities to Kraepelinia Vachon, 1974, in having enlarged metasomal dentition, and to Orthochirus Karsch, 1891, and related genera in having a trapezoidal carapace and small abbreviated pedipalps.
Single-Locus Species Delimitation And Ecological Niche Modeling Provide Insights Into The Evolution, Historical Distribution, And Taxonomy Of The Pacific Chorus Frogs, Robert C. Jadin, Sarah A. Orlofske, Tereza Jezkova, Christopher Blair
Single-Locus Species Delimitation And Ecological Niche Modeling Provide Insights Into The Evolution, Historical Distribution, And Taxonomy Of The Pacific Chorus Frogs, Robert C. Jadin, Sarah A. Orlofske, Tereza Jezkova, Christopher Blair
Publications and Research
The Pacific chorus frogs are a complex of three wide-ranging species (i.e. Hyliola hypochondriaca, Hyliola regilla, Hyliola sierra) whose current taxonomy remains unresolved. We conducted species delimitation analyses of these taxa using fragments of the cytochrome b and 12S–16S mtDNA genes to assess the species diversity. Importantly, we included samples from new locations throughout the range to better understand species distributions and identify potential contact zones among clades. Our analyses revealed three slightly parapatric but distinct species-level clades. Molecular dating revealed that these species began diverging in the Pleistocene c. 1.4 Mya with H. hypochondriaca and …
An Exceptionally Small New Polycotylid Plesiosaur (Reptilia: Sauropterygia) With Raptorial Eyes From The Western Interior Seaway Of North America, Robert O’Brien Clark
An Exceptionally Small New Polycotylid Plesiosaur (Reptilia: Sauropterygia) With Raptorial Eyes From The Western Interior Seaway Of North America, Robert O’Brien Clark
Theses, Dissertations and Capstones
Polycotylidae is a family of plesiosaurian marine reptiles that evolved during the Early Cretaceous and radiated into multiple genera during the Late Cretaceous, achieving a worldwide distribution. Derived polycotylids of the subclade Polycotylinae have a gracile and elongated rostrum, homodont dentition, an extended mandibular symphysis, and foreshortened temporal fenestrae. In this thesis, I describe a small and highly derived new polycotylid taxon based on three specimens from the Campanian of the Western Interior Seaway in North America. A high number of maxillary teeth, fused neural arches, propodials with well-defined facets, and heavily remodeled cortical bone indicate the specimens are adults, …
Dog And Owner Characteristics Predict Training Success, Jeffrey R. Stevens, London M. Wolff, Megan Bosworth, Jill Morstad
Dog And Owner Characteristics Predict Training Success, Jeffrey R. Stevens, London M. Wolff, Megan Bosworth, Jill Morstad
Jeffrey Stevens Publications
Teaching owners how to train their dogs is an important part of maintaining the health and safety of dogs and people. Yet we do not know what behavioral characteristics of dogs and their owners are relevant to dog training or if owner cognitive abilities play a role in training success. The aim of this study is to determine which characteristics of both dogs and owners predict success in completing the American Kennel Club Canine Good Citizen training program. Before the first session of a dog training course, owners completed surveys evaluating the behavior and cognition of their dog and themselves. …
Are Capuchin Monkeys (Sapajus Spp.) Sensitive To Lost Opportunities? The Role Of Opportunity Costs In Intertemporal Choice, Elsa Addessi, Valeria Tierno, Valentina Focaroli, Federica Rossi, Serena Gastaldi, Francesca De Petrillo, Fabio Paglieri, Jeffrey R. Stevens
Are Capuchin Monkeys (Sapajus Spp.) Sensitive To Lost Opportunities? The Role Of Opportunity Costs In Intertemporal Choice, Elsa Addessi, Valeria Tierno, Valentina Focaroli, Federica Rossi, Serena Gastaldi, Francesca De Petrillo, Fabio Paglieri, Jeffrey R. Stevens
Jeffrey Stevens Publications
Principles of economics predict that the costs associated with obtaining rewards can influence choice. When individuals face choices between a smaller, immediate option and a larger, later option, they often experience opportunity costs associated with waiting for delayed rewards because they must forego the opportunity to make other choices. We evaluated how reducing opportunity costs affects delay tolerance in capuchin monkeys. After choosing the larger option, in the High cost condition, subjects had to wait for the delay to expire, whereas in the Low cost different and Low cost same conditions, they could perform a new choice during the delay. …
Using Audio Recording Devices And Multiseason Occupancy Modelling To Evaluate Clark's Nutcracker (Nucifraga Columbiana) Occurrence In Whitebark Pine Habitats Of Washington's Cascade Mountains, Lauren Taracka
Undergraduate Honors Theses
The Clark’s nutcracker (Nucifraga columbiana) and whitebark pine (Pinus albicaulis), both native to the harsh subalpine habitats of Washington’s Cascade Mountains, are being negatively impacted by white pine blister rust (Cronartium ribicola), the mountain pine beetle (Dendroctonus ponderosae), and climate change. As temperatures continue to warm, while many species at lower elevations can move upward in elevation to suit their temperature needs, subalpine species do not have that option. Whitebark pine is a keystone tree species - numerous animals consume its high fat, high energy seeds; it’s a nurse tree, providing shelter …
A New Cryptic Species Of Scorpiops Peters, 1861 (Scorpiones: Scorpiopidae) From The Northern Western Ghats, India, Shauri Sulakhe, Shubhankar Deshpande, Nikhil Dandekar, Makarand Ketkar, Anand Padhye, Deshabhushan Bastawade
A New Cryptic Species Of Scorpiops Peters, 1861 (Scorpiones: Scorpiopidae) From The Northern Western Ghats, India, Shauri Sulakhe, Shubhankar Deshpande, Nikhil Dandekar, Makarand Ketkar, Anand Padhye, Deshabhushan Bastawade
Euscorpius
A new cryptic species of Scorpiops (Scorpiopidae) is described from northern Western Ghats of India with integrated taxonomic approach. Scorpiops telbaila sp. n. is closely related to S. tenuicauda and differs from all species of Scorpiops in morphological features and raw genetic divergence of 5.4-14.1 %.
Euscorpius Thracicus Sp. N. (Scorpiones: Euscorpiidae) From Bulgaria, František Kovařík, Graeme Lowe, Markéta Byronová, František Šťáhlavský
Euscorpius Thracicus Sp. N. (Scorpiones: Euscorpiidae) From Bulgaria, František Kovařík, Graeme Lowe, Markéta Byronová, František Šťáhlavský
Euscorpius
Euscorpius thracicus sp. n. from eastern Bulgaria is described, fully complemented with color photographs of both live and preserved specimens, as well as their habitats. This species is described based on morphology and the cytochrome oxidase I (COI) DNA barcoding marker. In addition to the analyses of external morphology and hemispermatophore, we also describe the karyotype of E. thracicus sp. n. (2n=92).
Revision Of Genus-Group Taxa In The Family Scorpiopidae Kraepelin, 1905, With Description Of 15 New Species (Arachnida: Scorpiones), František Kovařík, Graeme Lowe, Mark Stockmann, František Šťáhlavský
Revision Of Genus-Group Taxa In The Family Scorpiopidae Kraepelin, 1905, With Description Of 15 New Species (Arachnida: Scorpiones), František Kovařík, Graeme Lowe, Mark Stockmann, František Šťáhlavský
Euscorpius
The scorpiopids comprise a large scorpion family, distributed widely across the Oriental region, that currently encompasses 82 species placed under 8 genera and one subgenus. A variety of morphological characters have been used in the diagnoses of these genera or subgenera. Some characters were introduced by Vachon (1980) and Soleglad & Sissom (2001) when less than a few dozen species were known, while other more recent characters have not been fully evaluated. We critically review all characters that have been applied to generic or subgeneric taxonomy of the family, as well as several others hitherto neglected. We analyze their variation …
Two New Chaerilus From Thailand And Laos (Scorpiones: Chaerilidae), František Kovařík, Graeme Lowe, Mark Stockmann, František Šťáhlavský
Two New Chaerilus From Thailand And Laos (Scorpiones: Chaerilidae), František Kovařík, Graeme Lowe, Mark Stockmann, František Šťáhlavský
Euscorpius
Chaerilus kautti sp. n. from Thailand and C. pulcherrimus sp. n. from Laos are described and fully illustrated with color photographs of live and preserved specimens. C. kautti sp. n. is characterized by the unique combination of two characters: movable finger of pedipalp with 11 imbricated rows of granules; and pedipalp chela length/width ratio in male 4.55. C. pulcherrimus sp. n. is characterized by the unique combination of four characters: movable finger of pedipalp with 8 imbricated rows of granules; total length 16–19 mm; pedipalp chela length/width ratio in male 2.57, in female 2.69; and sternite VII smooth. In addition …
Effect Of Seasons And Scorpion Size On The Foraging And Diet Of The Striped Bark Scorpion, Centruroides Vittatus (Buthidae: Scorpiones) In Blackbrush Habitat Of South Texas, C. Neal Mcreynolds
Effect Of Seasons And Scorpion Size On The Foraging And Diet Of The Striped Bark Scorpion, Centruroides Vittatus (Buthidae: Scorpiones) In Blackbrush Habitat Of South Texas, C. Neal Mcreynolds
Euscorpius
Diet and foraging success of the striped bark scorpion, Centruroides vittatus, in South Texas are influenced by both scorpion size and season of the year. In the ten-year study of the striped bark scorpions in the blackbrush habitat of south Texas, the diet was variable with caterpillars (Lepidoptera) as the main prey for all seasons and all size classes of scorpions. The proportion of caterpillars did vary significantly with size class of scorpion and months of the year with intermediate size scorpions capturing more caterpillars during January–April than other size classes or months of the year. The proportion of …
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxv. Description Of Pandinurus Awalei Sp. N. And The Male Of Pandiborellius Somalilandus (Kovařík, 2012), With Remarks On Recent Synonymies (Scorpionidae: Pandininae), František Kovařík, Graeme Lowe, Hassan Sh A. Elmi
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxv. Description Of Pandinurus Awalei Sp. N. And The Male Of Pandiborellius Somalilandus (Kovařík, 2012), With Remarks On Recent Synonymies (Scorpionidae: Pandininae), František Kovařík, Graeme Lowe, Hassan Sh A. Elmi
Euscorpius
A new species Pandinurus awalei sp. n. is described from Somaliland. The male of Pandiborellius somalilandus (Kovařík, 2012) is also described for the first time and sexual dimorphism of the species is defined. The habitus, morphology and habitats of both species are illustrated in detail with color and UV fluorescence images, including both live and preserved specimens. The species Pandinurus intermedius (Borelli, 1919) and Pandipalpus lowei (Kovařík, 2012) of Pandininae that were synonymized by Prendini & Loria (2020) are reinstated as valid species.
Reddyanus Justi Sp. N. From Laos (Scorpiones: Buthidae), František Kovařík, Graeme Lowe, František Šťáhlavský
Reddyanus Justi Sp. N. From Laos (Scorpiones: Buthidae), František Kovařík, Graeme Lowe, František Šťáhlavský
Euscorpius
A new species Reddyanus justi sp. n. from Laos is described, fully complemented with color photographs of live and preserved specimens. The new species is characterized by the irregular quadrilateral shape of the subaculear tubercle in males. In addition to analysis of external morphology and hemispermatophore, we also describe the karyotype (2n=12)
Two New Species Of Chiromachetes (Scorpiones: Hormuridae) From The Northern Western Ghats, India, Shauri Sulakhe, Shubhankar Deshpande, Nikhil Dandekar, Makarand Ketkar, Gaurang Gowande, Anand Padhye, Deshabhushan Bastawade
Two New Species Of Chiromachetes (Scorpiones: Hormuridae) From The Northern Western Ghats, India, Shauri Sulakhe, Shubhankar Deshpande, Nikhil Dandekar, Makarand Ketkar, Gaurang Gowande, Anand Padhye, Deshabhushan Bastawade
Euscorpius
Two new species of Chiromachetes Pocock, 1899 (Hormuridae) are described from the northern Western Ghats of India using an integrated taxonomic approach. Chiromachetes parakrami sp. n. and C. ramdasswamii sp. n. are closely related and differ from each other and C. sahyadriensis by morphological features and raw genetic divergence of 7.9–9.4 %.
Тaxonomic Position Of Orthochirus Olivaceus (Karsch, 1881), The Type Species Of The Genus Orthochirus Karsch, 1892 (Scorpiones: Buthidae), František Kovařík, Victor Fet, Manal Siyam
Тaxonomic Position Of Orthochirus Olivaceus (Karsch, 1881), The Type Species Of The Genus Orthochirus Karsch, 1892 (Scorpiones: Buthidae), František Kovařík, Victor Fet, Manal Siyam
Euscorpius
We address the taxonomic position of Orthodactylus olivaceus Karsch, 1881, the type species of the genus Orthochirus Karsch, 1892. For over a century, this taxon was considered a synonym of Orthochirus scrobiculosus (Grube, 1873); however, the latter was recently limited to Central Asia (Turkmenistan) (Kovařík et al., 2020). Analysis of Karsch’s holotype confirmed that Orthochirus olivaceus (Karsch, 1881), is a valid species. Its type locality published as “Sicily” is clearly incorrect. It is a senior synonym of Butheolus aristidis Simon, 1882, syn. n., described from Sudan (Nubia). We confirm its distribution in northern Sudan and southern Egypt.
Further Review Of Orthochirus Karsch, 1892 (Scorpiones: Buthidae) From Asia: Taxonomic Position Of O. Melanurus, O. Persa, O. Scrobiculosus, And Description Of Six New Species, František Kovařík, Victor Fet, Ersen A. Yağmur
Further Review Of Orthochirus Karsch, 1892 (Scorpiones: Buthidae) From Asia: Taxonomic Position Of O. Melanurus, O. Persa, O. Scrobiculosus, And Description Of Six New Species, František Kovařík, Victor Fet, Ersen A. Yağmur
Euscorpius
We describe six new species of Orthochirus: O. birulai sp. n. (Pakistan), O. formozovi sp. n. (Afghanistan, Iran, Tajikistan, Turkmenistan), O. grosseri sp. n. (Uzbekistan), O. kryzhanovskyi sp. n. (Pakistan), O. nordmanni sp. n. (Afghanistan), and O. sejnai sp. n. (Iran). Descriptions are complemented with color photographs of preserved specimens. The identities of Orthochirus melanurus (Kessler, 1874) (Kazakhstan, Uzbekistan), O. persa (Birula, 1900), stat. n. (Afghanistan, Iran), and O. scrobiculosus (Grube, 1873) (Turkmenistan) are reexamined, based on detailed study of the type specimens; lectotypes of all three species are designated. We demonstrate for the first time that the name …
Description Of The Male Of Wernerius Mumai (Sissom, 1993) From Western Arizona, With Data On Reproduction (Scorpiones: Vaejovidae), Richard F. Ayrey, Brandon T. Myers
Description Of The Male Of Wernerius Mumai (Sissom, 1993) From Western Arizona, With Data On Reproduction (Scorpiones: Vaejovidae), Richard F. Ayrey, Brandon T. Myers
Euscorpius
A male of Wernerius mumai (Sissom, 1993) is described for the first time, collected at the type locality (Gold Road, Black Mountains, Mohave County, Arizona). Originally placed in the genus Vaejovis, this species later was transferred by Soleglad & Fet (2008) to the genus Wernerius. It is one of the smallest vaejovid species known. The pedipalp fixed finger usually has 6 ID denticles and the movable finger has 7. The most unique characteristic of this species is the long, pointed, subaculear tubercle.
Integrative Species Delimitation And Taxonomic Status Of The Scorpion Genus Vaejovis Koch, 1836 (Vaejovidae) In The Santa Catalina Mountains, Arizona, Emma E. Jochim, Lillian-Lee M. Broussard, Brent E. Hendrixson
Integrative Species Delimitation And Taxonomic Status Of The Scorpion Genus Vaejovis Koch, 1836 (Vaejovidae) In The Santa Catalina Mountains, Arizona, Emma E. Jochim, Lillian-Lee M. Broussard, Brent E. Hendrixson
Euscorpius
Scorpions belonging to the Vaejovis vorhiesi species complex are widely distributed throughout the southwestern United States and northern Mexico. Most species are endemic to single mountain ranges but two species, Vaejovis deboerae Ayrey, 2009 and V. brysoni Ayrey & Webber, 2013, have been documented from the Santa Catalina Mountains in Arizona. We reevaluated the taxonomic diversity of these scorpions by integrating data from several different sources. Phylogenetic analyses indicate that scorpions in the Santa Catalina Mountains are monophyletic but comprise two divergent mitochondrial lineages that overlap at the type locality of V. deboerae. We failed to detect congruence between …
Interrelationships Among Monorchiid Trematodes With Special Emphasis On Some Northwestern Atlantic Genera, Apryle Panyi
Interrelationships Among Monorchiid Trematodes With Special Emphasis On Some Northwestern Atlantic Genera, Apryle Panyi
Master's Theses
The Monorchiidae Odhner, 1911 is a cosmopolitan family of flukes (Trematoda: Digenea) comprising species that parasitize the digestive tract of estuarine and marine fishes as adults. Compared with other oceans, recent morphological or molecular taxonomic work conducted on monorchiid species from the northwestern Atlantic Ocean has been sparse (Manter, 1931; Overstreet, 1969; Andres et al., 2018; Wee et al., 2018, 2019, 2020). Therefore, the present work investigated the interrelationships of some monorchiids from the northwestern Atlantic Ocean with emphasis on several genera and investigated if Lasiotocus minutus (Manter, 1931) Thomas, 1959 constitutes a complex of cryptic species. New morphological and …
Consider The Agent In The Arthropod, Nicolas Delon, Peter Cook, Gordon Bauer, Heidi Harley
Consider The Agent In The Arthropod, Nicolas Delon, Peter Cook, Gordon Bauer, Heidi Harley
Animal Sentience
Whether or not arthropods are sentient, they can have moral standing. Appeals to sentience are not necessary and retard progress in human treatment of other species, including invertebrates. Other increasingly well-documented aspects of invertebrate minds are pertinent to their welfare. Even if arthropods are not sentient, they can be agents whose goals—and therefore interests—can be frustrated. This kind of agency is sufficient for moral status and requires that we consider their welfare.