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Full-Text Articles in Ecology and Evolutionary Biology

А Review Of Heterometrus In Thailand (Scorpiones: Scorpionidae), Kazusa Kawai, Thornthan Unnahachote, Yossaphon Suttisatid, Victoria Tang Jun 2023

А Review Of Heterometrus In Thailand (Scorpiones: Scorpionidae), Kazusa Kawai, Thornthan Unnahachote, Yossaphon Suttisatid, Victoria Tang

Euscorpius

Five species of the genus Heterometrus Ehrenberg, 1828 are currently confirmed from Thailand and revised, with their respective distribution range in this country updated. Heterometrus laevigatus (Thorell, 1876) is considered a nomen dubium, while its two previous junior synonyms, H. cimrmani Kovařík, 2004, stat. rev. and H. minotaurus Plíšková et al., 2016, stat. rev. are revalidated and redescribed based on the examination of topotypes. Females of H. minotaurus Plíšková et. al., 2016, stat. rev. were also collected and examined, and their characters are herein described with a special attention to sexual dimorphism. Furthermore, some populations previously regarded as H. …


First Report Of Regeneration In The Genus Mesobuthus (Scorpiones: Buthidae), Rıdvan Kurt, Ersen A. Yağmur, Gülhanım Çelik Jun 2023

First Report Of Regeneration In The Genus Mesobuthus (Scorpiones: Buthidae), Rıdvan Kurt, Ersen A. Yağmur, Gülhanım Çelik

Euscorpius

A new example of scorpion leg regeneration is reported in an adult male Mesobuthus mesopotamicus (Penther, 1912). A claw (pretarsus) was observed to regenerate at the distal end of the tibia of the left leg II. The regeneration case is described and illustrated.


Androctonus Kunti Sp. N. From Iğdır Province, Turkey (Scorpiones: Buthidae), Ersen A. Yağmur May 2023

Androctonus Kunti Sp. N. From Iğdır Province, Turkey (Scorpiones: Buthidae), Ersen A. Yağmur

Euscorpius

A new species Androctonus kunti sp. n. is described and illustrated from Iğdır Province of Turkey. This population was first recorded by Birula (1896) as A. crassicauda (Olivier, 1807). A. kunti sp. n. is compared with A. crassicauda as well as A. turkiyensis Yağmur, 2021, which was recently described from Turkey


A New Monotypic Genus And Species From China, Langxie Feti Gen. Et Sp. N. (Scorpiones: Buthidae), Victoria Tang, Qingquan Jia, Leonhard Liu Apr 2023

A New Monotypic Genus And Species From China, Langxie Feti Gen. Et Sp. N. (Scorpiones: Buthidae), Victoria Tang, Qingquan Jia, Leonhard Liu

Euscorpius

A new monotypic genus, Langxie gen. n., is described from Xizang (Tibet), China. The new genus shares an important morphological character with Afrolychas Kovařík, 2019: absence of external accessory denticles (EADs) along the sixth row of median denticles (MDs) on the pedipalp movable finger. Langxie gen. n. is different from Afrolychas in the following aspects: loss of EAD near the proximally enlarged MD within each row (i. e., loss of all EAD on the movable finger; this also distinguishes the new genus from other related genera in the “(Ananteris + Isometrus)” clade (Štundlová et …


A New Species Of Scorpio From Jordan (Scorpiones: Scorpionidae), Mohammad Al-Saraireh, Ersen A. Yağmur, Bassam Abu Afifeh, Zuhair Amr Feb 2023

A New Species Of Scorpio From Jordan (Scorpiones: Scorpionidae), Mohammad Al-Saraireh, Ersen A. Yağmur, Bassam Abu Afifeh, Zuhair Amr

Euscorpius

A new species Scorpio granulomanus sp. n. is described and illustrated from Dibbeen Forest, Jerash Governorate, Jordan. The new species is compared with the previously recorded species of the genus Scorpio L., 1758 in the Middle East; it can be distinguished from all other congeners by its very large, pointed granules on the dorsoexternal surface of the chela manus, and an untypically elongated chela manus.


Non-Aggressive Competition Between Males Of Srilankametrus Yaleensis (Kovařík Et Al., 2019) (Scorpionidae), And Other Types Of Agonistic Behavior Observed In Scorpions, Victoria Tang Jan 2023

Non-Aggressive Competition Between Males Of Srilankametrus Yaleensis (Kovařík Et Al., 2019) (Scorpionidae), And Other Types Of Agonistic Behavior Observed In Scorpions, Victoria Tang

Euscorpius

A peculiar intraspecific agonistic behavior involving a non-aggressive physical combat is reported between the adult males of Srilankametrus yaleensis (Kovařík et al., 2019) (Scorpionidae: Heterometrinae). The adult males were observed to resort to a ritualized and relatively gentle way for strength demonstration. The combat is characterized by lateral spreading of pedipalps, chelicerae-to-chelicerae collision, and entanglement of metasomal segments. This behavior is hereby considered a form of an intrasexual combat defined as the “arm-span competition”. It is hypothesized to be beneficial for solving territorial and/ or sexual competitions while avoiding unnecessary mortality which could pose adverse impact to the natural populations. …


Lychas Jakli Sp. N. (Scorpiones: Buthidae) From Indonesia, František Kovařík Jan 2023

Lychas Jakli Sp. N. (Scorpiones: Buthidae) From Indonesia, František Kovařík

Euscorpius

A new species Lychas jakli sp. n. (Scorpiones: Buthidae) is described from Indonesia, fully illustrated with color photos showing its morphology and habitus. A new synonymy is proposed: Lychas kotao Lourenço, 2020 = Lychas mucronatus (Fabricius, 1798), syn. n.


Assessing The Unionid Assemblage Of The Robert C. Byrd Pool, Ohio River, Ethan Hunter Bellamy Jan 2023

Assessing The Unionid Assemblage Of The Robert C. Byrd Pool, Ohio River, Ethan Hunter Bellamy

Theses, Dissertations and Capstones

Unionid mussels are the most imperiled taxa in the United States and are vastly understudied. The entire Robert C. Byrd (RCB) pool of the Ohio River is the study area. I selected sites from the 2019 and 2013 ORSANCO RCB pool assessments that utilize random site selection across the pool. I used SCUBA to survey and collect data on unionid diversity, reproduction, and habitat. I collected 1,083 individuals over 19 species in RCB pool. I compared results from RCB pool survey to two similar surveys conducted in Greenup Pool. Both richness and abundance in the Upper Section of Greenup Pool …


Characterizing The Vegetation And Effects Of Climate Change On Parris Island, A Sea Island Ecosystem, Cody Hart Goodson Jan 2023

Characterizing The Vegetation And Effects Of Climate Change On Parris Island, A Sea Island Ecosystem, Cody Hart Goodson

Theses, Dissertations and Capstones

Coastal habitats provide many ecosystem services, protecting coastlines from storm surges and erosion, diminishing the effects of eutrophication, sequestering large amounts of carbon, and acting as vital wildlife habitat. Sea-level rise and increased storm surge intensity associated with climate change are increasingly disrupting coastal habitats. These disturbances can shift environmental gradients that drive the zonation of coastal vegetation types, driving habitat conversion. Monitoring coastal habitat conversion can improve our understanding of the dynamic effects of climate change on these landscapes. Therefore, our objectives for chapter 1 were to identify and describe the distributions of vegetation types present on Marine Corps …


An Analysis Of The Preferences, Morphometrics, And Survey Efficacy Of The Freshwater Mussel Community In The Greenup Pool, Ohio River, Jacob Miller Jan 2023

An Analysis Of The Preferences, Morphometrics, And Survey Efficacy Of The Freshwater Mussel Community In The Greenup Pool, Ohio River, Jacob Miller

Theses, Dissertations and Capstones

The Greenup Pool is one of the most unique pools of the Ohio River in terms of habitat richness and anthropogenic impact both historical and current. The Greenup Pool spans 61.8 miles reaching from Greenup Dam in Greenup, KY to Robert C. Byrd Dam in Apple Grove, WV. We surveyed 17 sites to assess mussel communities within the Greenup Pool using the 2017 West Virginia Mussel Survey Protocol. At these sites, six 100-meter transects were surveyed for surface and subsurface mussels. Each transect was divided into 10-meter intervals. These surveys resulted in 4,041 live individuals from 21 species, including eight …


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.


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 …


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 …


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.


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.


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.


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 …


Report Of Thanatosis In The Central American Scorpions Tityus Ocelote And Ananteris Platnicki (Scorpiones: Buthidae), Felipe Triana, Fabián Bonilla, Adriana Alfaro-Chinchilla, Carlos Víquez, Cecilia Díaz, Mahmood Sasa Sep 2022

Report Of Thanatosis In The Central American Scorpions Tityus Ocelote And Ananteris Platnicki (Scorpiones: Buthidae), Felipe Triana, Fabián Bonilla, Adriana Alfaro-Chinchilla, Carlos Víquez, Cecilia Díaz, Mahmood Sasa

Euscorpius

Thanatosis, or tonic immobility, is a behavior where animals adopt a motionless posture after a physical contact or very close proximity of a predator. This behavior has been described in a wide range of taxa, from invertebrates to vertebrates. For scorpions, tonic immobility has been reported in two buthids, Tityus pusillus and Tityus cerroazul, one hormurid, Liocheles australasiae, and one scorpiopsid, Scorpiops jendeki. Here we report other cases of this thanatosis for two buthid scorpions from lower Central America: Tityus ocelote and Ananteris platnicki. Thanatosis in these species were observed in wild, but was better documented …


The First Record Of Scorpiops Bhutanensis Tikader & Bastawade, 1983 From China, With The First Report Of Its Female (Scorpiones: Scorpiopidae), He-Yu Lv, Zhi-Yong Di Aug 2022

The First Record Of Scorpiops Bhutanensis Tikader & Bastawade, 1983 From China, With The First Report Of Its Female (Scorpiones: Scorpiopidae), He-Yu Lv, Zhi-Yong Di

Euscorpius

The first record of Scorpiops bhutanensis Tikader & Bastawade, 1983 from China (Xizang). An emended diagnosis, detailed redescription, and illustrations of the species are provided. Its female is reported here for the first time.


Scorpions Of The Horn Of Africa (Arachnida, Scorpiones). Part Xxviii. Scorpions Of Djibouti, František Kovařík, Graeme Lowe Aug 2022

Scorpions Of The Horn Of Africa (Arachnida, Scorpiones). Part Xxviii. Scorpions Of Djibouti, František Kovařík, Graeme Lowe

Euscorpius

All scorpion species known from Djibouti are listed, with color photographs and maps of their distribution. Buthus awashensis Kovařík, 2011 known from Ethiopia and Somaliland is reported for the first time from Djibouti. The diagnosis of Orthochirus afar Kovařík & Lowe, 2016 is revised; O. borrii Rossi, 2017 is determined to be a junior synonym of O. afar Kovařík & Lowe, 2016 syn. n.; O. aristidis (Simon, 1882) syn. res. is returned to synonymy with O. olivaceus Karsch, 1881; and O. arenicola Lourenço & Ythier, 2021, is relegated to the status of nomen dubium. Hemiscorpius lipsae sp. n. …


Reanalysis Of Teruelius And Grosphus (Scorpiones: Buthidae) With Descriptions Of Two New Species, Graeme Lowe, František Kovařík Jul 2022

Reanalysis Of Teruelius And Grosphus (Scorpiones: Buthidae) With Descriptions Of Two New Species, Graeme Lowe, František Kovařík

Euscorpius

No abstract provided.


Scorpions Of China: An Updated Checklist With Comments On Some Taxonomic Issues (Arachnida: Scorpiones), Victoria Tang Jun 2022

Scorpions Of China: An Updated Checklist With Comments On Some Taxonomic Issues (Arachnida: Scorpiones), Victoria Tang

Euscorpius

An updated checklist of scorpions of China (52 species belonging to 13 genera and six families) is provided, with Chinese name equivalents and an illustrated map of all localities. Colored photos of the Chinese population of Mesobuthus thersites (C. L. Koch, 1839) and one Olivierus sp. in vivo habitus are provided for the first time. The recent taxonomic changes are summarized. The monotypic genus Tibetiomachus (Hormuridae) with its single species T. himalayensis is considered a nomen dubium. The validity of the previously synonymized Scorpiops atomatus Qi et al., 2005 and S. validus (Di et al., 2010) (Scorpiopidae) is questioned, …


A New Species Of Chiromachetes Pocock, 1899 (Scorpiones: Hormuridae) From Southern Western Ghats, India, Akshay Khandekar, Tejas Thackeray, Swapnil Pawar, Satpal Gangalmale, Vivek Waghe Jun 2022

A New Species Of Chiromachetes Pocock, 1899 (Scorpiones: Hormuridae) From Southern Western Ghats, India, Akshay Khandekar, Tejas Thackeray, Swapnil Pawar, Satpal Gangalmale, Vivek Waghe

Euscorpius

No abstract provided.


A New Species Of Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) From Southeastern Plains Of Tamil Nadu, India, Shubhankar Deshpande, Gaurang Gowande, Deshabhushan Bastawade, Shauri Sulakhe Jun 2022

A New Species Of Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) From Southeastern Plains Of Tamil Nadu, India, Shubhankar Deshpande, Gaurang Gowande, Deshabhushan Bastawade, Shauri Sulakhe

Euscorpius

We here describe a new species of Isometrus Ehrenberg, 1828 from the southeastern plains of Tamil Nadu, India, which is known only from its type locality, Chengalpattu. The new species was recovered as sister to Isometrus nakshatra based on a molecular phylogeny inferred from COI and 16S mitochondrial genes. Sequence divergence between the new species and all the Indian congeners was 12.6–15.7 % for COI and 12.2–14.4 % for 16S. The new species can also be differentiated from all the Indian congeners based on the following set of characters: surface of carapace with mixed (coarse and fine) and dense granulation; …


Orthochirus Kovariki Sp. N. From Takhar Province, Afghanistan (Scorpiones: Buthidae), Ersen A. Yağmur, Faizurrahman Khalili May 2022

Orthochirus Kovariki Sp. N. From Takhar Province, Afghanistan (Scorpiones: Buthidae), Ersen A. Yağmur, Faizurrahman Khalili

Euscorpius

A new species, Orthochirus kovariki sp. n. is described and illustrated based on both sexes from Takhar Province of Afghanistan. O. kovariki sp. n. appears to be close to O. feti Kovařík, 2004, reported from Uzbekistan and Tajikistan; both species have the movable finger of pedipalp without outer denticles. Detailed illustrations of O. kovariki sp. n. are given.


A New Scorpion Genus And Species From China, Qianxie Solegladi Gen. Et Sp.N. (Scorpiones: Pseudochactidae), Victoria Tang May 2022

A New Scorpion Genus And Species From China, Qianxie Solegladi Gen. Et Sp.N. (Scorpiones: Pseudochactidae), Victoria Tang

Euscorpius

A new monotypic genus belonging to the basal scorpion family Pseudochactidae Gromov, 1998, Qianxie solegladi gen et. sp. n., is described from Yunnan Province of China. The family is recorded from China for the first time, vastly extending its known geographic range. The new genus shares morphological characters with both Pseudochactas Gromov, 1998 and Troglokhammouanus Lourenço, 2007. It differs from Pseudochactas and is similar to Troglokhammouanus in the shapes of anterior and posterolateral carapace margins, form of the circumocular sutures, distance between median ocelli, development of dorsoventral projection of patella, length of tarsal spinules, recurvature of the lateral margins and …


A Standardized List Of Scorpion Names In Chinese, With An Etymological Approach, Victoria Tang May 2022

A Standardized List Of Scorpion Names In Chinese, With An Etymological Approach, Victoria Tang

Euscorpius

The scientific (Latin) names of scorpion species are widely used across the world by both experts and amateurs. However, in China, there is a great need for designating standardized Chinese names for various scorpions since it is difficult for those not familiar with Latin alphabet to memorize the scientific names. Currently used Chinese names often cause confusion and misunderstanding due to a lack of standardized, unified naming. The present work critically revises the existing formal Chinese scorpion names, vernacular names (used by local population and amateurs), and the names used in Chinese scientific publications, along with the confusion they have …


Review Of Orthochiroides Kovařík, 1998 With Description Of A New Species (Scorpiones: Buthidae), František Kovařík, Graeme Lowe May 2022

Review Of Orthochiroides Kovařík, 1998 With Description Of A New Species (Scorpiones: Buthidae), František Kovařík, Graeme Lowe

Euscorpius

The genus Orthochiroides Kovařík, 1998 is reanalyzed. Revised diagnoses and new illustrations for the genus and all four of its species are presented. A new species, O. somalilandus sp. n. from Somaliland is described and illustrated. Phylogenetic relationships of the genus with several other similar genera of small buthids are inferred from a parsimony analysis of 43 discrete morphological characters. The recent synonymy of Orthochiroides with Orthochirus is refuted and the genus is revalidated.


A Revision Of The Genus Mesobuthus Vachon, 1950, With A Description Of 14 New Species (Scorpiones: Buthidae), František Kovařík, Victor Fet, Benjamin Gantenbein, Matthew R. Graham, Ersen A. Yağmur, František Šťáhlavský, Nikita M. Poverennyi, Nizami E. Novruzov Mar 2022

A Revision Of The Genus Mesobuthus Vachon, 1950, With A Description Of 14 New Species (Scorpiones: Buthidae), František Kovařík, Victor Fet, Benjamin Gantenbein, Matthew R. Graham, Ersen A. Yağmur, František Šťáhlavský, Nikita M. Poverennyi, Nizami E. Novruzov

Euscorpius

The Asian genus Mesobuthus Vachon, 1950, s. str. (Buthidae) (also known as an informal ‘M. eupeus complex’), which includes the most common scorpion species found from Turkey to China, is revised based on new collections, mainly from Central Asia, Turkey, and Iran, using both morphological and mitochondrial DNA data. Available type specimens of all species were studied; neotypes and lectotypes were designated when necessary. The type species Mesobuthus eupeus (C. L. Koch, 1839), s. str., is restricted to the Caucasus Mts. Currently, the genus includes 29 valid species. Fifteen previously described taxa are recognized as species: Mesobuthus afghanus (Pocock, …


Mesobuthus Zarudnyi Sp. N. From Azerbaijan (Scorpiones: Buthidae), Nizami E. Novruzov, František Kovařík, Victor Fet Mar 2022

Mesobuthus Zarudnyi Sp. N. From Azerbaijan (Scorpiones: Buthidae), Nizami E. Novruzov, František Kovařík, Victor Fet

Euscorpius

A new species Mesobuthus zarudnyi sp. n. is described from Azerbaijan, fully illustrated with color photos. We compare the new species with two other species, M. eupeus (C. L. Koch, 1839) and M. persicus (Pocock, 1899), both found also in Azerbaijan.