Modeling Elemental Constraints Across Aquatic Food Webs, 2018 Texas Tech University
Modeling Elemental Constraints Across Aquatic Food Webs, Md Nazmul Hassan, Angela Peace
Annual Symposium on Biomathematics and Ecology: Education and Research
No abstract provided.
Acarine Biodiversity In Ecuador: Two New Species Of Endoparasitic Chiggers (Acarina: Trombiculidae) From Terrestrial Andean Anurans, 2018 Universidad Central de Venezuela
Acarine Biodiversity In Ecuador: Two New Species Of Endoparasitic Chiggers (Acarina: Trombiculidae) From Terrestrial Andean Anurans, Ricardo Guerrero, Mario Humberto Yánez-Muñoz
MANTER: Journal of Parasite Biodiversity
Two species of endoparasitic chiggers, Vercammenia neotropica n. sp. and Microtrombicula ecuadorensis n. sp., are described, both found in terrestrial anurans of the genus Pristimantis collected in the Andes of Ecuador. A new combination is proposed for Trombicula yorkei Sambon, 1928 as Microtrombicula yorkei (Sambon, 1928) n. comb., and Schoengastia lynni Ewing, 1942 is placed as incertae sedis. This is the first record of species of the genus Vercammenia in the Neotropical region.
Dos especies de ácaros endoparasitarias, Vercammenia neotropica n. sp. y Microtrombicula ecuadorensis n. sp., se describen, ambos encontrados en anuros terrestres del género Pristimantis recolectados en ...
Review Of The Genus Babycurus Karsch, 1886 (Arachnida, Scorpiones, Buthidae), With Descriptions Of Barbaracurus Gen. N. And Two New Species From Oman And Yemen, František Kovařík, Graeme Lowe, František Šťáhlavský
The genus Babycurus Karsch, 1886 sensu lato is split into two genera, a strictly African genus Babycurus, and the new genus Barbaracurus gen. n., which mainly includes species from the Horn of Africa and Arabian Peninsula. Two new species Barbaracurus winklerorum sp. n. from Oman and B. yemenensis sp. n. from Yemen are described, compared with other species, and fully illustrated with color photos of morphology, habitus, live specimens and collection localities. Males of Barbaracurus somalicus (Hirst, 1907) comb. n. and Barbaracurus zambonellii (Borelli, 1902) comb. n. are recorded for the first time and fully illustrated. Babycurus ornatus Werner, 1936 ...
Robert James Baker (1942-2018), Obituary, 2018 University of Nebraska - Lincoln
Robert James Baker (1942-2018), Obituary, Hugh H. Genoways, Robert D. Bradley, David J. Schmidly, Lisa C. Bradley, James J. Bull, Karen Mcbee, Meredith J. Hamilton, Peter A. Larsen
Mammalogy Papers: University of Nebraska State Museum
On 30 March 2018, the science of mammalogy and the American Society of Mammalogists lost one of the most influential figures of the last half-century. Robert James Baker died quietly at his home in Lubbock, Texas (Fig. 1). He was born on 8 April 1942 to James Simeon Baker and Laura Cooper in Warren, Arkansas. His father was killed during World War II and his mother remarried, resulting in his growing up with six half-siblings. According to Robert’s autobiography in Going afield (330—number refers to specific publication in “Bibliography”), he spent a good deal of his ...
The Paper Zoo: 500 Years Of Animals In Art By Charlotte Sleigh, 2018 Dawson College
The Paper Zoo: 500 Years Of Animals In Art By Charlotte Sleigh, Gina M. Granter
Review of Charlotte Sleigh's The Paper Zoo: 500 Years of Animals in Art.
Unique Osmoregulatory Morphology In Primitive Sharks: An Intermediate State Between Holocephalan And Derived Shark Secretory Morphology, 2018 Coastal Carolina University
Unique Osmoregulatory Morphology In Primitive Sharks: An Intermediate State Between Holocephalan And Derived Shark Secretory Morphology, Matthew Eric Larsen
Electronic Theses and Dissertations
Discovery of an unusual rectal gland in the Atlantic sixgill shark, Hexanchus vitulus, led to examination of rectal glands in 29 species of epipelagic and deep-sea sharks. Eight of 14 deep-sea species of sharks had digitiform glands that were previously assumed to be characteristic of elasmobranchs (N=281; mean width-length ratio ± SD = 0.18 ± 0.07). Hematoxylin-and-eosin stained sections from deep-sea sharks were similar to those from shallow water sharks. Glands from the family Somniosidae were kidney bean-shaped (N = 3; mean width-length ratio ± SD = 0.46 ± 0.05); whereas those from the families Echinorhinidae and Hexanchidae appeared lobulate (N=39 ...
A New Scorpion Species From Kenya, Gint Childsi Sp. N. (Scorpiones: Buthidae), 2018 Marshall University
A New Scorpion Species From Kenya, Gint Childsi Sp. N. (Scorpiones: Buthidae), Frantíšek Kovařík
Gint childsi sp. n. from Kenya is described and compared with other species of the genus. Additional information is provided on the taxonomy and distribution of the genus Gint, fully complemented with color photos of preserved specimens of both sexes of the new species, as well as of their habitat.
Two New Hottentotta Species From Iran, With A Review Of Hottentotta Saulcyi (Scorpiones: Buthidae), 2018 Celal Bayar University
Two New Hottentotta Species From Iran, With A Review Of Hottentotta Saulcyi (Scorpiones: Buthidae), Frantíšek Kovařík, Ersen Aydin Yağmur, Mohammed Moradi
Two new buthid species from Iran, Hottentotta navidpouri sp. n. (Hormozgan Province) and H. sistanensis sp. n. (Sistan and Baluchestan Province) are described, compared with H. saulcyi (Simon, 1880), and fully illustrated with color photos. The two new species differ from H. saulcyi mainly in shape of chela, which is strongly elongated in both new species.
A New Species Of Microtityus From The British Virgin Islands, West Indies, And New Localities For Other Scorpions (Scorpiones: Buthidae, Scorpionidae), Luis F. De Armas
Microtityus (Parvabsonus) eustatia sp. n. is herein described from the British Virgin Islands (West Indies): Eustatia Island (type locality), Virgin Gorda Island, and Camanoe Island, based on seven specimens (three males and four females). The new species closely resembles M. waeringi Francke & Sissom, 1980 from St. John Island and St. Thomas Island, U.S. Virgin Islands, differing mainly by the fixed finger of pedipalp having ten rows of denticles (nine in M. waeringi) and more attenuated metasoma. Also, new localities are recorded for Heteronebo yntemai Francke & Sissom, 1980 (Scorpionidae) and Centruroides griseus (C. L. Koch, 1844) (Buthidae).
Nine-Banded Armadillo (Dasypus Novemcinctus) In Spartanburg County, South Carolina, 2018 University of South Carolina Upstate
Nine-Banded Armadillo (Dasypus Novemcinctus) In Spartanburg County, South Carolina, Jonathan J. Storm
Journal of the South Carolina Academy of Science
The distribution range of the nine-banded armadillo (Dasypus novemcinctus) has been expanding northward across the eastern and central United States over the past several decades. It is thought that armadillos first reached South Carolina in the mid-1980s in the southwestern portion of the state. Armadillo sightings are rare in the Upstate region of South Carolina. Here, we report of an armadillo photographed in southern Spartanburg County on 30 May, 2017. This individual was spotted in mixed deciduous forest along the Tyger River. Our data add further support to the notion that armadillos have expanded their breeding range into the northern ...
A Unique Small-Scale Microclimatic Gradient In A Temperate Karst Harbours Exceptionally High Diversity Of Soil Collembola, 2018 P. J. Šafárik University
A Unique Small-Scale Microclimatic Gradient In A Temperate Karst Harbours Exceptionally High Diversity Of Soil Collembola, Natália Raschmanová, Dana Miklisová, Ľubomír Kováč
International Journal of Speleology
The collapse doline of the Silická ľadnica Ice Cave, 351 m2 in area, is a unique phenomenon, a steep microclimate gradient in a low-altitude temperate karst in the Western Carpathian Mts, Slovakia, with a remarkable temperature decrease from the edge of karst plateau towards the doline bottom, which harbours perennial ice deposits. Collembola communities were studied in detail at seven sites along the 117.5 m long gradient slope during 2005–2007. An exceptionally high species richness of soil Collembola was observed, 129 species, which is about 91% of the total species richness generated by Chao1/ACE estimator. Species ...
Investigations Of Biotremors In The Veiled Chameleon (Chamaeleo Calyptratus), 2018 Western Kentucky University
Investigations Of Biotremors In The Veiled Chameleon (Chamaeleo Calyptratus), Kathryn C. Laslie
Masters Theses & Specialist Projects
While substrate-borne vibrations are utilized by different reptile species, true conspecific communication via biotremors has not yet been demonstrated in reptiles. This study follows a preliminary report that the veiled chameleon (Chamaeleo calyptratus) could produce biotremors in communicative contexts. I tested chameleon behavioral sensitivity to vibrations by placing them on a dowel attached to a shaker emitting vibrations of 25, 50, 150, 300, and 600 Hz and then measured their changes in velocity before and after the stimulus. I then paired chameleons in various social contexts [anthropogenic disturbance (human disruption of animal); dominance (malemale; female-female C. calyptratus); courtship (male-female C ...
An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen
Masters Theses & Specialist Projects
Escalating human elephant conflict (HEC) continues to be a contributing factor
towards elephant decline, and crop raiding is the most common form of negative
human-elephant interactions. For communities that cannot reverse or prevent crop
raiding, it is necessary to contain HEC events through deterrent measures. Few
deterrent measures exist that combine practicality and affordability while also
preventing habituation by elephants. This project focused on comparing the efficacy of
deterrent methods to assess which was the most successful at preventing elephants
from entering crops in the farming community of Sasenyi, Kenya. In this paired-control
study, four deterrent methods were evaluated: acacia ...
Review Of Microbuthus With Description Of M. Satyrus Sp. N. (Scorpiones, Buthidae) From Oman And Yemen, 2018 Monell Chemical Senses Center
Review Of Microbuthus With Description Of M. Satyrus Sp. N. (Scorpiones, Buthidae) From Oman And Yemen, Graeme Lowe, František Kovařík, Mark Stockmann, František Šťáhlavský
The taxonomy of the genus Microbuthus is reviewed, and a new species from Oman and Yemen, M. satyrus sp. n., is described and fully illustrated with color photographs of live and preserved specimens, as well as of its habitat. It is compared to the closely similar species M. litoralis, which we also illustrate. Synonymy of the type species M. pusillus Kraepelin, 1898 with M. litoralis (Pavesi, 1885) is confirmed, and the species is recorded for the first time from Yemen. Hemispermatophores of M. satyrus sp. n., M. gardneri Lowe, 2010, and M. kristensenorum Lowe, 2010 are illustrated and compared, and ...
Common Loons Respond Adaptively To A Black Fly That Reduces Nesting Success, 2018 Chapman University
Common Loons Respond Adaptively To A Black Fly That Reduces Nesting Success, Walter H. Piper, Keren B. Tischler, Andrew Reinke
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Nesting birds must often cope with harassment from biting insects, but it is difficult to ascertain what effect such pests might have on breeding success and population dynamics. We tested the hypothesis that a black fly (Simulium annulus) that feeds on the blood of nesting Common Loons (Gavia immer) causes nest abandonment in this charismatic diving bird. In addition, we measured effects of fly-induced abandonment on a loon population, and examined potential predictors of fly abundance and nest abandonment. We also tested a second hypothesis, which holds that loon pairs that abandon a nest owing to flies should often remain ...
Circannual Patterns Of Adipose Tissue Characteristics In A Hibernator, The Thirteen-Lined Ground Squirrel (Ictidomys Tridecemlineatus), 2018 The University of Western Ontario
Circannual Patterns Of Adipose Tissue Characteristics In A Hibernator, The Thirteen-Lined Ground Squirrel (Ictidomys Tridecemlineatus), Amanda Maccannell
Electronic Thesis and Dissertation Repository
Obligate hibernators express circannual patterns of body mass and hibernation, which persist under constant laboratory conditions. I hypothesized that in the 13-lined ground squirrel (Ictidomys tridecemlineatus) thermogenic brown adipose tissue (BAT) and lipid storing white adipose tissue (WAT) volume would follow a circannual pattern. I housed animals at either 25°C (thermoneutral) or 5°C with 12h L:12h D photoperiods for an entire year. I determined volume and water-fat ratio of WAT and BAT using magnetic resonance imaging (MRI). BAT volume follows a circannual pattern in both conditions, increasing prior to winter, decreasing in late winter with no change ...
A New Species Of Vaejovis From The Patagonia Mountains, Southern Arizona (Scorpiones: Vaejovidae), 2018 Marshall University
A New Species Of Vaejovis From The Patagonia Mountains, Southern Arizona (Scorpiones: Vaejovidae), Richard F. Ayrey
A new scorpion species, Vaejovis patagonia sp. nov. is described and placed in the “vorhiesi” group. This small, dark brown species is found near Patagonia, Arizona. It is geographically closest to V. troupi Ayrey & Soleglad, V. grahami Ayrey & Soleglad and V. vorhiesi Stahnke. Those three species are found in a triangle surrounding the Patagonia Mountains, the locality of Vaejovis patagonia. The pedipalp fixed finger has 5 ID denticles and the movable finger has 6, like most, but not all, of the other southern Arizona Vaejovis. Carapace of female is shorter than metasomal segment V.
The Genera Butheolus Simon, 1882 And Xenobuthus Gen. Nov. (Scorpiones: Buthidae) In Oman, 2018 Monell Chemical Senses Center
The Genera Butheolus Simon, 1882 And Xenobuthus Gen. Nov. (Scorpiones: Buthidae) In Oman, Graeme Lowe
The genus Butheolus Simon, 1882 is revised based on new material from Dhofar Province in Oman. B. gallagheri Vachon, 1980 is redescribed, and a related new species, B. harrisoni sp. n., is also described. The species B. anthracinus (Pocock, 1895) is redescribed and moved to a new genus Xenobuthus gen. n., that is differentiated from Butheolus by size, pedipalp finger dentition, setation, granulation and hemispermatophore structure, and a related new species, X. xanthus sp. n., is also described. Revised diagnoses are provided for the genus Butheolus, and for the species B. thalassinus Simon, 1882, and B. villosus Hendrixson, 2006, a ...
Spatio-Temporal Dynamics Of Atlantic Cod Bycatch In The Maine Lobster Fishery And Its Impacts On Stock Assessment, Robert E. Boenish
Electronic Theses and Dissertations
Of the most iconic fish species in the world, the Atlantic cod (Gadus morhua, hereafter, cod) has been a mainstay in the North Atlantic for centuries. While many global fish stocks have received increased pressure with the advent of new, more efficient fishing technology in the mid-20th century, exceptional pressure has been placed on this prized gadoid. Bycatch, or the unintended catch of organisms, is one of the biggest global fisheries issues. Directly resulting from the failed recovery of cod in the GoM, attention has been placed as to possible sources of unaccounted catch. Among the most prominent is ...
Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), 2018 University of Nebraska at Omaha
Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), Colleen Rothe-Groleau, Claudia M. Rauter, James D. Fawcett
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
As humans encroach into areas inhabited by predators, the potential of human-predator confrontations increases and the predators become regarded as dangerous pests. Predators exert a measure of population control over pest species such as small rodents, as well as limit the quantity and scope of diseases (e.g. spread of Hantavirus by these prey species). Control of these small rodent pest species can be aided by conserving and managing their predators like rattlesnakes (Crotalus spp). Management of any population requires detailed information on population composition and the ability to determine the key information (especially age and sex) for each individual ...