scholarly journals American Pygmy Shrew, Sorex hoyi, Consumed by an Arctic Grayling, Thymallus arcticus

2011 ◽  
Vol 125 (3) ◽  
pp. 255 ◽  
Author(s):  
Thomas S. Jung ◽  
Angela Milani ◽  
Oliver E. Barker ◽  
Nathan P. Millar
Keyword(s):  
Body Size ◽  
Small Mammals ◽  
First Record ◽  
The Body ◽  
Limiting Factor ◽  
Arctic Grayling ◽  
Thymallus Arcticus ◽  
Pygmy Shrew

Arctic Grayling, Thymallus arcticus, are rarely reported to consume small mammals. We report an American Pygmy Shrew, Sorex hoyi, consumed by an Arctic Grayling caught in southern Yukon, Canada. This is the first record of an American Pygmy Shrew being consumed by an Arctic Grayling, and it confirms that Arctic Grayling will consume shrews (Sorex spp.) when they are available. We suspect that the body size of prey is a limiting factor in Arctic Grayling consuming small mammals, with some species of shrews being small enough for Arctic Grayling to consume.

scholarly journals First record of Pachycrocuta brevirostris (Gervais, 1850) from Ukraine on the background of the European occurrence of the species

2021 ◽  
Author(s):  
Adrian Marciszak ◽  
Yuriy Semenov ◽  
Piotr Portnicki ◽  
Tamara Derkach
Keyword(s):  
Body Size ◽  
First Record ◽  
The Body ◽  
Crocuta Crocuta ◽  
Early Pleistocene ◽  
Eastern Asia ◽  
South Eastern

AbstractCranial material ofPachycrocuta brevirostrisfrom the late Early Pleistocene site of Nogaisk is the first record of this species in Ukraine. This large hyena was a representative of the Tamanian faunal complex and a single specialised scavenger in these faunas. The revisited European records list ofP.brevirostrisdocumented the presence of this species in 101 sites, dated in the range of 3.5–0.4 Ma. This species first disappeared in Africa, survived in Europe until ca. 0.8–0.7 Ma, and its last, relict occurrence was known from south-eastern Asia. The main reason of extinction ofP.brevirostrisprobably was the competition withCrocuta crocuta. The cave hyena was smaller, but its teeth were proportionally larger to the body size, better adapted to crushing bones and slicing meat, and could also hunt united in larger groups.

scholarly journals First record of the genus Lamellarea (Acari, Oribatida, Lamellareidae) from the Neotropical region

2020 ◽  
Vol 27 ◽  
pp. 74-79
Author(s):  
Sergey G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
First Record ◽  
Neotropical Region ◽  
The Body ◽  
Generic Diagnosis ◽  
Similar Species ◽  
Live Oak ◽  
A New Species

A new species of Lamellarea (Oribatida, Lamellareidae) is described from hick twigs of southern live oak in Florida, U.S.A. (part of the Neotropical region). Lamellarea americana sp. nov. differs from most similar species, Lamellarea digitata and L. forceps by the ventrally inserted lamellar setae, the number of genital setae, the length of interlamellar setae, and the body size. Remarks on generic diagnosis and distribution of Lamellarea are presented.

scholarly journals Spilotes sulphureus Wagler, 1824 (Squamata: Colubridae): review of distribution and first record in the state of Sergipe, northeastern Brazil

Check List ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 2055 ◽  
Author(s):  
Hugo Andrade ◽  
Rony Peterson Santos Almeida ◽  
Eduardo José dos Reis Dias
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
First Record ◽  
The State ◽  
The Body ◽  
Northeastern Brazil ◽  
Amazon Rainforest ◽  
Defensive Behaviour ◽  
Lateral Compression ◽  
Arboreal Habit

We present the first record of Spilotes sulphureus for the state of Sergipe. In Brazil, this species is distributed Amazon Rainforest, Atlantic Forest and Caatinga biomes. This large-bodied snake has arboreal habit, is diurnal, has oviparous reproduction, feeds on birds, eggs, lizards, bats, amphibians and small mammals and presents the defensive behaviour of lateral compression of the body.

Two new jellyfishes (Cnidaria: Scyphozoa) from tropical Australian waters

Zootaxa ◽  
2008 ◽  
Vol 1764 (1) ◽  
pp. 41 ◽  
Author(s):  
LISA-ANN GERSHWIN ◽  
WOLFGANG ZEIDLER
Keyword(s):  
New Species ◽  
Body Size ◽  
Great Barrier Reef ◽  
Relative Position ◽  
First Record ◽  
The Body ◽  
Barrier Reef ◽  
Central Dome ◽  
The Past ◽  
Two New Species

Two new species of scyphozoan jellyfishes from tropical Australian waters are described. The first, Sanderia pampinosus, n. sp., from waters off northern Western Australia, represents the first record of the genus from Australia. It differs from its only other congener, S. malayensis Goette, 1886, in having: (1) almost double the number of gonadal papillae at about half the body size; (2) horseshoe-shaped gonadal rings; and (3) eradial tentacles that are flattened in the oral-aboral direction and have nematocyst clusters on all sides. The second species, Netrostoma nuda, n. sp., from the Great Barrier Reef region, has been erroneously identified in the past as N. coerulescens. Species distinctions in the genus rely on the number and relative position of warts or papillae on the central dome; in contrast, N. nuda lacks warts and papillae, and instead has a large gelatinous knob at the apex of the bell. A key to the species of Netrostoma is provided, along with a synoptic list of previous reports of scyphozoans in tropical Australian waters.

On species of the genus Macrosaldula (Hemiptera: Heteroptera: Saldidae) of the Palaearctic Region, with description of M. graziae sp. nov.

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 287-300
Author(s):  
NIKOLAY N. VINOKUROV ◽  
PETR KMENT
Keyword(s):  
Czech Republic ◽  
New Species ◽  
Body Size ◽  
First Record ◽  
Zoological Institute ◽  
The Body ◽  
National Museum ◽  
Central Asian ◽  
Academy Of Sciences ◽  
Far Eastern

In this paper, we present new data on the genus Macrosaldula Leston & Southwood, 1964 based on material held in the collections of the National Museum (Prague, Czech Republic) and the Zoological Institute of the Russian Academy of Sciences (St. Petersburg, Russia). Macrosaldula graziae sp. nov., from South Uzbekistan and Tajikistan, is described. Among the Central Asian species of the genus, it is close to M. tadzhika (Kiritshenko, 1912) by the presence of long erect setae on the body dorsum, but the latter species differs in the smaller body size, the presence of light spots on the corium, and in the structure of the male genitalia. In extremely dark specimens of M. jakowleffi (Reuter, 1891), the hemelytra are opaque, with short erect setae. Siberian M. rivularia (J. Sahlberg, 1878), M. simulans Cobben, 1985 and the Far Eastern M. koreana (Kiritshenko, 1912) and M. violacea Cobben, 1985 are distinguished from the new species by the short pubescence on the dorsum. We provide new distributional data for M. clavalis Cobben, 1985 (Georgia), M. jakowleffi (Reuter, 1891) (China: Xinjiang: Altai Mts.—first record), M. miyamotoi Cobben, 1985 (Japan: Honshu), M. nivalis (Lindberg, 1935) (Afghanistan—first record, Kyrgyzstan, Tajikistan), M. scotica (Curtis, 1835) (Georgia: Adzharia; Russia: Murmansk District), and M. tadzhika (Afghanistan—first record, Tajikistan, Uzbekistan). The record of M. scotica from Uzbekistan is disconsidered, and the two specimens are referred to M. graziae sp. nov. 

Parathyroid gland before and after cisplatin treatment

1987 ◽  
Vol 45 ◽  
pp. 860-861
Author(s):  
S.K. Aggarwal ◽  
J.M. Fadool
Keyword(s):  
Parathyroid Gland ◽  
Wistar Rats ◽  
Antitumor Agent ◽  
The Body ◽  
Cross Linking ◽  
Limiting Factor ◽  
Hormonal Changes ◽  
Primary Mechanism ◽  
Before And After ◽  
Dna Strands

Cisplatin (CDDP) a potent antitumor agent suffers from severe toxic side effects with nephrotoxicity being the major dose-limiting factor, The primary mechanism of its action has been proposed to be through its cross-linking DNA strands. It has also been shown to inactivate various transport enzymes and induce hypocalcemia and hypomagnesemia that may be the underlying cause for some of its toxicities. The present is an effort to study its influence on the parathyroid gland for any hormonal changes that control calcium levels in the body.Male Swiss Wistar rats (Crl: (WI) BR) weighing 200-300 g and of 60 days in age were injected (ip) with cisplatin (7mg/kg in normal saline). The controls received saline injections only. The animals were injected (iv) with calcium (0.5 ml of 10% calcium gluconate/day) and were killed by decapitation on day 1 through 5. Trunk blood was collected in heparinized tubes.

The Body Size of Headstarted and Wild Juvenile European Pond Turtles (Emys orbicularis)

2017 ◽  
Vol 25 (2) ◽  
pp. 161
Author(s):  
Sławomir Mitrus ◽  
Bartłomiej Najbar ◽  
Adam Kotowicz ◽  
Anna Najbar
Keyword(s):  
Body Size ◽  
The Body ◽  
Emys Orbicularis

scholarly journals Insect body size changes under future warming projections: a case study of Chironomidae (Insecta: Diptera)

Hydrobiologia ◽  
2021 ◽  
Author(s):  
Rungtip Wonglersak ◽  
Phillip B. Fenberg ◽  
Peter G. Langdon ◽  
Stephen J. Brooks ◽  
Benjamin W. Price
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
Wing Length ◽  
The Body ◽  
Mesocosm Experiments ◽  
Future Warming ◽  
Increasing Temperature ◽  
Emergence Date ◽  
Average Body

AbstractChironomids are a useful group for investigating body size responses to warming due to their high local abundance and sensitivity to environmental change. We collected specimens of six species of chironomids every 2 weeks over a 2-year period (2017–2018) from mesocosm experiments using five ponds at ambient temperature and five ponds at 4°C higher than ambient temperature. We investigated (1) wing length responses to temperature within species and between sexes using a regression analysis, (2) interspecific body size responses to test whether the body size of species influences sensitivity to warming, and (3) the correlation between emergence date and wing length. We found a significantly shorter wing length with increasing temperature in both sexes of Procladius crassinervis and Tanytarsus nemorosus, in males of Polypedilum sordens, but no significant relationship in the other three species studied. The average body size of a species affects the magnitude of the temperature-size responses in both sexes, with larger species shrinking disproportionately more with increasing temperature. There was a significant decline in wing length with emergence date across most species studied (excluding Polypedilum nubeculosum and P. sordens), indicating that individuals emerging later in the season tend to be smaller.

scholarly journals Potential host ranges of three Asian larval parasitoids of Drosophila suzukii

2021 ◽  
Author(s):  
Kent M. Daane ◽  
Xingeng Wang ◽  
Brian N. Hogg ◽  
Antonio Biondi
Keyword(s):  
Body Size ◽  
Host Species ◽  
Classical Biological Control ◽  
Developmental Time ◽  
The Body ◽  
Phylogenetic Position ◽  
Egg Load ◽  
Drosophila Suzukii ◽  
Larval Parasitoids ◽  
Female Body Size

AbstractAsobara japonica (Hymenoptera: Braconidae), Ganaspis brasiliensis and Leptopilina japonica (Hymenoptera: Figitidae) are Asian larval parasitoids of spotted wing drosophila, Drosophila suzukii (Diptera: Drosophilidae). This study evaluated these parasitoids’ capacity to attack and develop from 24 non-target drosophilid species. Results showed that all three parasitoids were able to parasitize host larvae of multiple non-target species in artificial diet; A. japonica developed from 19 tested host species, regardless of the phylogenetic position of the host species, L. japonica developed from 11 tested species; and G. brasiliensis developed from only four of the exposed species. Success rate of parasitism (i.e., the probability that an adult wasp successfully emerged from a parasitized host) by the two figitid parasitoids was low in hosts other than the three species in the melanogaster group (D. melanogaster, D. simulans, and D. suzukii). The failure of the figitids to develop in most of the tested host species appears to correspond with more frequent encapsulation of the parasitoids by the hosts. The results indicate that G. brasiliensis is the most host specific to D. suzukii, L. japonica attacks mainly species in the melanogaster group and A. japonica is a generalist, at least physiologically. Overall, the developmental time of the parasitoids increased with the host’s developmental time. The body size of female A. japonica (as a model species) was positively related to host size, and mature egg load of female wasps increased with female body size. We discuss the use of these parasitoids for classical biological control of D. suzukii.

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