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https://www.readbyqxmd.com/read/28635329/lead-induces-siberian-tiger-fibroblast-apoptosis-by-interfering-with-intracellular-homeostasis
#1
Zheng Liu, Hui Wang, Wenxiu Zhang, Ziao Yuan, Hongyi Yuan, Xueting Liu, Minghai Zhang, Xuesong Guo, Weijun Guan
Lead (Pb(2+)) is a poisonous heavy metal that causes many pathophysiological effects in living systems. Its toxicological effects are well known as it causes apoptosis of several cell types and tissues. This study aimed to determine the criteria required for early diagnosis of Pb(2+) poisoning in the Siberian tiger using a tiger population in China, to identify a safety Pb(2+) concentration threshold, and to provide suggestions for preventing Pb(2+) poisoning in Siberian tigers. We investigated the apoptotic effects of Pb(2+) (0, 32, 64, and 125 μM) for 12-48 h on Siberian tiger fibroblasts in vitro...
June 21, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28616473/ten-years-of-the-tiger-aedes-albopictus-presence-in-australia-since-its-discovery-in-the-torres-strait-in-2005
#2
REVIEW
Andrew F van den Hurk, Jay Nicholson, Nigel W Beebe, Joe Davis, Odwell M Muzari, Richard C Russell, Gregor J Devine, Scott A Ritchie
The "Asian tiger mosquito", Aedes albopictus, is highly invasive, an aggressive biter and a major arbovirus vector. It is not currently present on mainland Australia despite being intercepted on numerous occasions at international ports and infesting the Torres Strait of Australia since at least 2004. In the current paper, we describe the invasion and current status of Ae. albopictus in the Torres Strait, as well as research conducted to assess the threat of this species becoming established in arbovirus transmission cycles on the Australian mainland...
December 2016: One Health
https://www.readbyqxmd.com/read/28616069/population-genetic-and-field-ecological-analyses-return-similar-estimates-of-dispersal-over-space-and-time-in-an-endangered-amphibian
#3
Ian J Wang, H Bradley Shaffer
The explosive growth of empirical population genetics has seen a proliferation of analytical methods leading to a steady increase in our ability to accurately measure key population parameters, including genetic isolation, effective population size, and gene flow, in natural systems. Assuming they yield similar results, population genetic methods offer an attractive complement to, or replacement of, traditional field-ecological studies. However, empirical assessments of the concordance between direct field-ecological and indirect population genetic studies of the same populations are uncommon in the literature...
July 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28610285/taxonomic-changes-of-some-neotropical-species-of-arctiini-leach-lepidoptera-erebidae-arctiinae
#4
Hernán Mario Beccacece, Adriana Inés Zapata
Arctiini (Lepidoptera, Erebidae, Arctiinae) is the most speciose tribe of tiger moths. In this study, the taxonomy of some Neotropical species of this tribe is reviewed based on habitus and, in some cases, genitalia of type specimens. Lectotypes are designated for two names. Four new combinations are proposed: Agaraea sericeum (Zerny, 1931) comb. n., Biturix nigrostriata (Rothschild, 1909) comb. n., Carales fasciatus (Rothschild, 1909) comb. n. and Opharus pallida (Dognin, 1910) comb. n. Six new synonymies are proposed: Agaraea nigrotuberculata Bryk, 1953 (=Agaraea klagesi (Rothschild, 1909)), Opharus ochracea Joicey & Talbot, 1918 and Pelochyta fergusoni Watson & Goodger, 1986 (=Opharus pallida (Dognin, 1910)), Melese flavescens Joicey & Talbot, 1918 (=Melese paranensis Dognin, 1911), Leucanopsis infucata (Berg, 1882) (=Pareuchaetes aurata aurata (Butler, 1875)) and Tessellota pura Breyer, 1957 (=Tessellota cancellata (Burmeister, 1878))...
May 30, 2017: Zootaxa
https://www.readbyqxmd.com/read/28605992/the-third-international-workshop-on-aedes-albopictus-building-scientific-alliances-in-the-fight-against-the-globally-invasive-asian-tiger-mosquito
#5
Robert M Waterhouse, Xiaoguang Chen, Mariangela Bonizzoni, Giuliano Gasperi
No abstract text is available yet for this article.
June 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28600405/were-inspections-overdue-at-zoo-where-keeper-was-mauled-to-death-by-a-tiger
#6
(no author information available yet)
No abstract text is available yet for this article.
June 10, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28594833/diet-and-trophic-ecology-of-the-tiger-shark-galeocerdo-cuvier-from-south-african-waters
#7
Matthew L Dicken, Nigel E Hussey, Heather M Christiansen, Malcolm J Smale, Nomfundo Nkabi, Geremy Cliff, Sabine P Wintner
Knowledge of the diet and trophic ecology of apex predators is key for the implementation of effective ecosystem as well as species-based management initiatives. Using a combination of stomach content data and stable isotope analysis (δ15N and δ13C) the current study provides information on size-based and sex-specific variations in diet, trophic position (TP) and foraging habitat of tiger sharks (Galeocerdo cuvier) caught in the KwaZulu-Natal Sharks Board bather protection program. This study presents the longest time-series and most detailed analysis of stomach content data for G...
2017: PloS One
https://www.readbyqxmd.com/read/28591222/ecological-impact-of-the-end-cretaceous-extinction-on-lamniform-sharks
#8
Rachel A Belben, Charlie J Underwood, Zerina Johanson, Richard J Twitchett
Lamniform sharks are apex marine predators undergoing dramatic local and regional decline worldwide, with consequences for marine ecosystems that are difficult to predict. Through their long history, lamniform sharks have faced widespread extinction, and understanding those 'natural experiments' may help constrain predictions, placing the current crisis in evolutionary context. Here we show, using novel morphometric analyses of fossil shark teeth, that the end-Cretaceous extinction of many sharks had major ecological consequences...
2017: PloS One
https://www.readbyqxmd.com/read/28591175/tigers-in-the-terai-strong-evidence-for-meta-population-dynamics-contributing-to-tiger-recovery-and-conservation-in-the-terai-arc-landscape
#9
Kanchan Thapa, Eric Wikramanayake, Sabita Malla, Krishna Prasad Acharya, Babu Ram Lamichhane, Naresh Subedi, Chiranjivi Prasad Pokharel, Gokarna Jung Thapa, Maheshwar Dhakal, Ashish Bista, Jimmy Borah, Mudit Gupta, Kamlesh K Maurya, Ghana Shyam Gurung, Shant Raj Jnawali, Narendra Man Babu Pradhan, Shiv Raj Bhata, Saroj Koirala, Dipankar Ghose, Joseph Vattakaven
The source populations of tigers are mostly confined to protected areas, which are now becoming isolated. A landscape scale conservation strategy should strive to facilitate dispersal and survival of dispersing tigers by managing habitat corridors that enable tigers to traverse the matrix with minimal conflict. We present evidence for tiger dispersal along transboundary protected areas complexes in the Terai Arc Landscape, a priority tiger landscape in Nepal and India, by comparing camera trap data, and through population models applied to the long term camera trap data sets...
2017: PloS One
https://www.readbyqxmd.com/read/28591065/the-evolution-of-the-tiger-initiative
#10
Toria Shaw, Joyce Sensmeier, Christel Anderson
No abstract text is available yet for this article.
June 2017: Computers, Informatics, Nursing: CIN
https://www.readbyqxmd.com/read/28590554/wet-years-have-more-caterpillars-interacting-roles-of-plant-litter-and-predation-by-ants
#11
Richard Karban, Patrick Grof-Tisza, Marcel Holyoak
Climate is widely recognized as an important factor that affects temporal and spatial patterns of occurrence and abundance of herbivorous insects, although the ecological mechanisms responsible are poorly understood. We found that precipitation and standing water were positively correlated with locations and years of high abundance of caterpillars of the ranchman's tiger moth, Platyprepia virginalis. We analyzed 30 years of survey data and found that the number of large rainfall events was a better predictor of caterpillar abundance than total annual accumulation...
June 7, 2017: Ecology
https://www.readbyqxmd.com/read/28590221/evaluation-of-pyriproxyfen-dissemination-via-aedes-albopictus-from-a-point-source-larvicide-application-in-northeast-florida
#12
Aaron M Lloyd, Muhammad Farooq, Alden S Estep, Rui-De Xue, Daniel L Kline
The Asian tiger mosquito, Aedes albopictus , ranks among the most important vectors of dengue fever, Zika virus, and chikungunya virus. With no specific medications or vaccines available, vector control is the only way to combat these diseases. Autodissemination of the insect growth regulator pyriproxyfen (NyGuard®) from a point-source treatment was evaluated in field settings in northeast Florida. The objective of this study was to investigate the possibility of pyriproxyfen dissemination from a treatment site to nontreated oviposition sites via the skip oviposition behavior of Ae...
June 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28588292/recombinant-feline-parvovirus-infection-of-immunized-tigers-in-central-china
#13
Xingang Wang, Tongyi Li, Hongying Liu, Jimei Du, Feng Zhou, Yanming Dong, Xiuyuan He, Yongtao Li, Chuanqing Wang
No abstract text is available yet for this article.
June 7, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28579427/infections-of-wolbachia-may-destabilize-mosquito-population-dynamics
#14
Arndt Telschow, Florian Grziwotz, Philip Crain, Takeshi Miki, James W Mains, George Sugihara, Stephen L Dobson, Chih-Hao Hsieh
Recent efforts in controlling mosquito-borne diseases focus on biocontrol strategies that incapacitate pathogens inside mosquitoes by altering the mosquito's microbiome. A case in point is the introduction of Wolbachia into natural mosquito populations in order to eliminate Dengue virus. However, whether this strategy can successfully control vector-borne diseases is debated; particularly, how artificial infection affects population dynamics of hosts remains unclear. Here, we show that natural Wolbachia infections are associated with unstable mosquito population dynamics by contrasting Wolbachia-infected versus uninfected cage populations of the Asian tiger mosquito (Aedes albopictus)...
June 1, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28579157/compound-mechanism-of-fatal-neck-injury-a-case-report-of-a-tiger-attack-in-a-zoo
#15
Łukasz Szleszkowski, Agata Thannhäuser, Tomasz Jurek
Fatal injuries caused by attacks by large wild cats are extremely rare in forensic medical practice in Europe. There are very few cases described in the forensic medical literature concerning incidents in zoos similar to the tiger attack on a 58-year-old male zoo employee that we present here. While preparing a runway for tigers, the man was attacked by a male Sumatran tiger. Another zoo employee was an eyewitness to the accident; in his testimony he described the sequence of events in detail. The autopsy showed the injuries typical of a tiger attack: traces of claws and canine teeth indicating that the victim of the attack was knocked down from behind, along with deep and extensive fatal wounds to the neck...
May 20, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28558060/genomic-structure-expression-pattern-and-functional-characterization-of-transcription-factor-e2f-2-from-black-tiger-shrimp-penaeus-monodon
#16
Bobo Xie, Pengfei Wang, Chao Zhao, Lihua Qiu
Transcription factor E2F-2 is a regulator of cell cycle. Researchers identified E2F-2 genes from yeasts to humans, but few reports investigated E2F-2 gene from black tiger shrimp. In the present study, we cloned E2F-2 gene from black tiger shrimp (Penaeus monodon). Full-length PmE2F-2 complementary DNA sequence measures 3,189 bp with an open reading frame of 1,371 bp. Complete PmE2F-2 genomic sequence (17,305 bp) of P. monodon contains nine exons, which are separated by eight introns. Quantitative real-time polymerase chain reaction (qRT-PCR) analysis indicated that PmE2F-2 is highly expressed in hepatopancreas and ovaries of P...
2017: PloS One
https://www.readbyqxmd.com/read/28554630/towards-improved-quality-benchmarking-and-shelf-life-evaluation-of-black-tiger-shrimp-penaeus-monodon
#17
Nhat Tam Le, Nhu Khue Doan, Thanh Nguyen Ba, Thi Van Thi Tran
An improved quality benchmarking and shelf life evaluation of freshly harvested black tiger shrimp (Penaeus monodon) was pursued by combining sensory and chemical methods. This involved developing a quality index method (QIM) to further assess both freshness and shelf life of the studied shrimp samples. The quality index included the use of trimethylamine (TMA-N), total volatile basis nitrogen (TVB-N), histamine, and hypoxanthine, which were performed at scheduled times during the ten days of ice storage (0°C)...
November 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28551884/habitat-monitoring-and-conservation-prioritisation-of-protected-areas-in-western-ghats-kerala-india
#18
K Athira, C Sudhakar Reddy, K R L Saranya, Shijo Joseph, R Jaishanker
Spatially explicit approach is essential to prioritise the ecosystems for biodiversity conservation. In the present study, the conservation status of 20 protected areas of the Western Ghats of Kerala, India, was analysed based on long-term changes in forests (1975-1985-1995-2005-2013), landscape level changes in fragmentation and forest fires (2005-2015). This study has shown that a significant forest loss occurred in protected areas before declaration. Idukki is one of the major protected areas which showed a drastic reduction (18...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28551406/protective-effect-of-hesperidin-and-tiger-nut-against-acrylamide-toxicity-in-female-rats
#19
Soha M Hamdy, Amany M Shabaan, Abdel Karim M Abdel Latif, Ayman M Abdel-Aziz, Alshimaa M Amin
Phytochemicals that have antioxidant effect play important role in protection against several diseases in humans. This study was carried out to evaluate the efficacy of hesperidin and tiger nut against the early changes that may be related to the toxicity of acrylamide in female rats. 72 Sprague Dawley female rats were divided into six groups (12 rat/group): control group (I); hesperidin (HES) treated group (II); tiger nut (TN) treated group (III); Acrylamide (ACR) treated group (IV); HES-ACR treated group (V); and TN-ACR treated group (VI)...
May 24, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28545111/northern-range-expansion-of-the-asian-tiger-mosquito-aedes-albopictus-analysis-of-mosquito-data-from-connecticut-usa
#20
Philip M Armstrong, Theodore G Andreadis, John J Shepard, Michael C Thomas
BACKGROUND: The Asian tiger mosquito (Aedes albopictus) is an invasive species and important arbovirus vector that was introduced into the U.S. in the 1980's where it continues to expand its range. Winter temperature is an important constraint to its northward expansion, with potential range limits located between the 0° and -5°C mean cold month isotherm. Connecticut is located within this climatic zone and therefore, Ae. albopictus was monitored statewide to assess its northern range expansion and to delineate where populations can stably persist...
May 2017: PLoS Neglected Tropical Diseases
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