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https://www.readbyqxmd.com/read/29900768/hyperkalemia-in-two-jaguars-panthera-onca-anesthetized-with-dexmedetomidine-ketamine-and-isoflurane
#1
Marta Romano, Jordyn M Boesch, Santiago Peralta, Christine Parker, George Kollias
  Two jaguars were anesthetized with dexmedetomidine, ketamine, and isoflurane. Arterial blood samples analyzed shortly after darting revealed no abnormalities. Samples analyzed 2 and 1.5 hr after darting revealed moderate hyperkalemia in both animals (6.8 and 6.2 mEq/L, respectively). Shortly after hyperkalemia was recognized, one jaguar developed electrocardiographic abnormalities (sinoventricular rhythm and widened QRS complexes), and a few minutes later, suffered cardiopulmonary arrest. Resuscitation with chest compressions, intermittent positive-pressure ventilation, and epinephrine was successful, and autonomous breathing and circulation resumed within a few minutes...
June 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29847606/spatial-patterns-of-medium-and-large-size-mammal-assemblages-in-v%C3%A3-rzea-and-terra-firme-forests-central-amazonia-brazil
#2
Guilherme Costa Alvarenga, Emiliano Esterci Ramalho, Fabrício Beggiato Baccaro, Daniel Gomes da Rocha, Jefferson Ferreira-Ferreira, Paulo Estefano Dineli Bobrowiec
Várzea forests account for 17% of the Amazon basin and endure an annual inundation that can reach 14 m deep during 6-8 months. This flood pulse in combination with topography directly influences the várzea vegetation cover. Assemblages of several taxa differ significantly between unflooded terra firme and flooded várzea forests, but little is known about the distribution of medium and large sized terrestrial mammals in várzea habitats. Therefore, our goal was to understand how those habitats influence mammalian species distribution during the dry season...
2018: PloS One
https://www.readbyqxmd.com/read/29844540/synchrotron-radiation-reveals-the-identity-of-the-large-felid-from-monte-argentario-early-pleistocene-italy
#3
Marco Cherin, Dawid A Iurino, Marco Zanatta, Vincent Fernandez, Alessandro Paciaroni, Caterina Petrillo, Roberto Rettori, Raffaele Sardella
We describe here a partial skull with associated mandible of a large felid from Monte Argentario, Italy (Early Pleistocene; ~1.5 million years). Propagation x-ray phase-contrast synchrotron microtomography of the specimen, still partially embedded in the rock matrix, allows ascribing it reliably to Acinonyx pardinensis, one of the most intriguing extinct carnivorans of the Old World Plio-Pleistocene. The analysis of images and 3D models obtained through synchrotron microtomography - here applied for the first time on a Plio-Pleistocene carnivoran - reveals a mosaic of cheetah-like and Panthera-like features, with the latter justifying previous attributions of the fossil to the extinct Eurasian jaguar Panthera gombaszoegensis...
May 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29722907/use-of-somatic-cell-banks-in-the-conservation-of-wild-felids
#4
REVIEW
Érika A Praxedes, Alana A Borges, Maria V O Santos, Alexsandra F Pereira
The conservation of biological resources is an interesting strategy for the maintenance of biodiversity, especially for wild felids who are constantly threatened with extinction. For this purpose, cryopreservation techniques have been used for the long-term storage of gametes, embryos, gonadal tissues, and somatic cells and tissues. The establishment of these banks has been suggested as a practical approach to the preservation of species and, when done in tandem with assisted reproductive techniques, could provide the means for reproducing endangered species...
May 3, 2018: Zoo Biology
https://www.readbyqxmd.com/read/29579129/estimating-large-carnivore-populations-at-global-scale-based-on-spatial-predictions-of-density-and-distribution-application-to-the-jaguar-panthera-onca
#5
Włodzimierz Jędrzejewski, Hugh S Robinson, Maria Abarca, Katherine A Zeller, Grisel Velasquez, Evi A D Paemelaere, Joshua F Goldberg, Esteban Payan, Rafael Hoogesteijn, Ernesto O Boede, Krzysztof Schmidt, Margarita Lampo, Ángel L Viloria, Rafael Carreño, Nathaniel Robinson, Paul M Lukacs, J Joshua Nowak, Roberto Salom-Pérez, Franklin Castañeda, Valeria Boron, Howard Quigley
Broad scale population estimates of declining species are desired for conservation efforts. However, for many secretive species including large carnivores, such estimates are often difficult. Based on published density estimates obtained through camera trapping, presence/absence data, and globally available predictive variables derived from satellite imagery, we modelled density and occurrence of a large carnivore, the jaguar, across the species' entire range. We then combined these models in a hierarchical framework to estimate the total population...
2018: PloS One
https://www.readbyqxmd.com/read/29516245/detection-of-noroviruses-in-free-ranging-jaguars-panthera-onca-in-the-pantanal-mato-grosso-brazil
#6
Marcelo Marques da Silveira, Stéfhano Luis Candido, Valéria Dutra, Selma Samiko Miyazaki, Luciano Nakazato
Nine free-ranging jaguars (Panthera onca) were captured, and rectal swabs were collected in the Pantanal of Cáceres, Mato Grosso, Brazil. Reverse transcription polymerase chain reaction specific for noroviruses was performed. Six jaguars (66.6%) tested positive for norovirus genotype GII.11.
March 7, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29502021/the-construction-of-feelings-of-justice-in-environmental-management-an-empirical-study-of-multiple-biodiversity-conflicts-in-calakmul-mexico
#7
Lou Lecuyer, Rehema M White, Birgit Schmook, Violaine Lemay, Sophie Calmé
A failure to address social concerns in biodiversity conservation can lead to feelings of injustice among some actors, and hence jeopardize conservation goals. The complex socio-cultural and political context of the Calakmul Biosphere Reserve, Mexico, has historically led to multiple biodiversity conflicts. Our goal, in this case study, was to explore perceptions of justice held by local actors in relation to biodiversity conflicts. We then aimed to determine the following: 1) people's definitions of their feelings of justice; 2) the criteria used in this assessment; 3) variability in the criteria influencing them; and 4) implications for environmental management in the region and beyond...
May 1, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29493617/china-s-lust-for-jaguar-fangs-imperils-big-cats
#8
Barbara Fraser
No abstract text is available yet for this article.
March 1, 2018: Nature
https://www.readbyqxmd.com/read/29415064/the-jaguar-and-the-phd
#9
Sergio Avila-Villegas
No abstract text is available yet for this article.
February 2018: PLoS Biology
https://www.readbyqxmd.com/read/29408036/first-detection-of-feline-hemoplasmas-in-free-ranging-jaguars-panthera-onca
#10
Mariana Malzoni Furtado, Sueli Akemi Taniwaki, Betina Metzger, Lucia Helena O'Dwyer, Karina Dos Santos Paduan, Anah Tereza de Almeida Jácomo, Grasiela Edith de Oliveira Porfírio, Leandro Silveira, Rahel Sollmann, Natália Mundim Tôrres, José Soares Ferreira Neto
Species of hemoplasmas have been described worldwide, but little information is available for wild felids. Between February 2000 and January 2010, blood samples were collected from 30 jaguars (Panthera onca) and 22 domestic cats (Felis catus) from the Cerrado, Pantanal and Amazon biomes of Brazil. In all samples molecular tests were performed for Mycoplasma haemofelis/Mycoplasma haemocanis (Mhf/Mhc), 'Candidatus Mycoplasma haemominutum' (CMhm) and 'Candidatus Mycoplasma turicensis' (CMt). Twenty-two (73.4%) jaguars and four domestic cats (18...
February 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29379688/are-pumas-subordinate-carnivores-and-does-it-matter
#11
L Mark Elbroch, Anna Kusler
Background: Interspecific competition affects species fitness, community assemblages and structure, and the geographic distributions of species. Established dominance hierarchies among species mitigate the need for fighting and contribute to the realized niche for subordinate species. This is especially important for apex predators, many of which simultaneous contend with the costs of competition with more dominant species and the costs associated with human hunting and lethal management...
2018: PeerJ
https://www.readbyqxmd.com/read/29356132/participatory-development-of-incentives-to-coexist-with-jaguars-and-pumas
#12
Ronit Amit, Susan K Jacobson
Reducing costs and increasing benefits for rural communities coexisting with large carnivores is necessary for conservation of jaguar (Panthera onca) and puma (Puma concolor). To design acceptable incentives, stakeholders must be involved in the process. We conducted an innovative, structured, group communication process based on a Delphi technique as a template for identifying potential incentives. Community workshops with 133 members of 7 communities and surveys with 25 multidisciplinary experts from government, nongovernmental organizations, and academia provided iterative data to design a plan of incentives through 4 rounds of discussion...
January 22, 2018: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29298553/conserved-citrullinating-exoenzymes-in-porphyromonas-species
#13
G Gabarrini, M A Chlebowicz, M E Vega Quiroz, A C M Veloo, J W A Rossen, H J M Harmsen, M L Laine, J M van Dijl, A J van Winkelhoff
Porphyromonas gingivalis is one of the major oral pathogens implicated in the widespread inflammatory disorder periodontitis. Moreover, in recent years, P. gingivalis has been associated with the autoimmune disease rheumatoid arthritis. The peptidylarginine deiminase enzyme of P. gingivalis (PPAD) is a major virulence factor that catalyzes the citrullination of both bacterial and host proteins, potentially contributing to production of anticitrullinated protein antibodies. Considering that these antibodies are very specific for rheumatoid arthritis, PPAD appears to be a link between P...
May 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29298311/when-roads-appear-jaguars-decline-increased-access-to-an-amazonian-wilderness-area-reduces-potential-for-jaguar-conservation
#14
Santiago Espinosa, Gerardo Celis, Lyn C Branch
Roads are a main threat to biodiversity conservation in the Amazon, in part, because roads increase access for hunters. We examine how increased landscape access by hunters may lead to cascading effects that influence the prey community and abundance of the jaguar (Panthera onca), the top Amazonian terrestrial predator. Understanding such ecological effects originating from anthropogenic actions is essential for conservation and management of wildlife populations in areas undergoing infrastructure development...
2018: PloS One
https://www.readbyqxmd.com/read/29234892/how-accurate-is-the-description-of-ligand-protein-interactions-by-a-hybrid-qm-mm-approach
#15
Jakub Kollar, Vladimir Frecer
During the last decades, the application of hybrid quantum mechanical/molecular mechanical (QM/MM) methods has been extended to the field of drug design. In principle, the approximate QM/MM approach offers a more complete description of drug-receptor non-covalent interactions. This is especially true when charge or proton transfer, chelation of metal ions or strong polarization of ligand and protein or surface chemical groups are involved. The aim of this work was to assess the accuracy of calculated non-covalent ligand-protein interaction energies ([Formula: see text]) obtained by the hybrid QM/MM approach employed in QSite/Jaguar of Schrödinger's Small-Molecule Drug Discovery Suite on a set of small-molecule model systems when compared to rigorous QM calculations...
December 12, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29076550/evaluation-of-reproductive-performance-and-genetic-variation-in-bulls-of-the-polish-white-backed-breed
#16
W Sawicka-Zugaj, W Chabuz, Z Litwińczuk, K Kasprzak-Filipek
The aim of the study was to evaluate genetic variation, reproductive performance and the degree of relationship of White-Backed bulls entered in the breed registry and approved for breeding. The study included 32 bulls of the White-Backed (WB) breed with an entry in the breed registry and used for breeding in the years 2003-2015. Eleven microsatellite DNA sequences (TGLA222, BM2113, TGLA53, ETH10, SPS115, TGLA126, TGLA122, INRA23, ETH3, ETH225 and BM1824) were used to analyse variation in the WB bulls. The bulls most often used for breeding were Chilon (1,073 doses), Mak (939 doses) and Jaguar (858 doses)...
February 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28902958/nonregenerative-immune-mediated-anemia-associated-with-a-diffuse-large-b-cell-lymphoma-in-a-captive-jaguar-panthera-onca
#17
Monika A Keresztes, Manfred Henrich, Penelope Baloi, Sascha Gerst, Jens-Christian Rudnick, Judith Langenstein, Andreas Moritz, Natali Bauer
An 18-year-old male castrated jaguar (Panthera onca) was presented with anorexia and continuous bleeding from the oral cavity after a history of fighting with the partner animal. Clinical evaluation revealed ulcerating lesions on the gingiva and hard palate and a hematoma on the tongue. Computed tomography of the head and endoscopic examination of the esophagus and stomach were unremarkable. Hematology and clinical chemistry revealed severe nonregenerative anemia, mild thrombocytopenia, and moderate azotemia...
December 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28880947/comparing-hair-morphology-and-molecular-methods-to-identify-fecal-samples-from-neotropical-felids
#18
COMPARATIVE STUDY
Carlos C Alberts, Bruno H Saranholi, Fernando Frei, Pedro M Galetti
To avoid certain problems encountered with more-traditional and invasive methods in behavioral-ecology studies of mammalian predators, such as felids, molecular approaches have been employed to identify feces found in the field. However, this method requires a complete molecular biology laboratory, and usually also requires very fresh fecal samples to avoid DNA degradation. Both conditions are normally absent in the field. To address these difficulties, identification based on morphological characters (length, color, banding, scales and medullar patterns) of hairs found in feces could be employed as an alternative...
2017: PloS One
https://www.readbyqxmd.com/read/28854258/temporal-variation-in-black-caiman-nest-predation-in-varzea-of-central-brazilian-amazonia
#19
Kelly Torralvo, Robinson Botero-Arias, William E Magnusson
On the Amazon floodplain, the main predators of black caiman (Melanosuchus niger) eggs are jaguars (Panthera onca), tegu lizards (Tupinambis teguixim), capuchin monkeys (Sapajus macrocephalus) and humans (Homo sapiens). In this study, we investigated the relationship between predator attacks on nests and incubation period, and evaluated the influence of initial predation on subsequent predation in the Mamirauá Sustainable Development Reserve. We also evaluated the influence of presence of females near the nests and manipulation of nests on the occurrence of attacks...
2017: PloS One
https://www.readbyqxmd.com/read/28841692/using-niche-modelling-and-species-specific-cost-analyses-to-determine-a-multispecies-corridor-in-a-fragmented-landscape
#20
Karen E DeMatteo, Miguel A Rinas, Juan Pablo Zurano, Nicole Selleski, Rosio G Schneider, Carina F Argüelles
Misiones, Argentina, contains the largest remaining tract of Upper Paraná Atlantic Forest ecoregion; however, ~50% of native forest is unprotected and located in a mosaic of plantations, agriculture, and pastures. Existing protected areas are becoming increasingly isolated due to ongoing habitat modification. These factors, combined with lower than expected regional carnivore densities, emphasize the need to understand the effect of fragmentation on animal movement and connectivity between protected areas...
2017: PloS One
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