A network meta‐analysis of threats to South American fish biodiversity     

Luis Artur Vales Bezerra  Matheus Oliveira Freitas  Vanessa Salete Daga  Thiago Vinicius Trento Occhi  Larissa Faria  Ana Paula Lula Costa  Andre Andrian Padial  Viviane Prodocimo  Jean Ricardo Simes Vitule 《Fish and Fisheries》2019,20(4):620-639

While environmental alterations have made Homo sapiens the hyperkeystone species of the globe, biotic homogenization initiated a new era, the “Homogenocene.” Still, some terrestrial and aquatic ecosystems in South America are considered pristine and wild, which can lead to a general faith that economic progress is consistent with conservation strategies, even without scientific support. We compiled anthropogenic threats to fish biodiversity in a hierarchical meta‐analysis, along with an evidence synthesis of threats related to biological invasions, based on peer‐reviewed research with the aim to represent the actual conservation status of the South American ichthyofauna. We highlighted human‐related threats and synergistic effects of biological invasions, climate change, environmental alterations (e.g., pollution, aquaculture and damming) and fisheries. Considering measures that reinforce novel alien fish (e.g., artificial hybrids or genetically modified) introductions, it became clear why an eventual increase in local or regional species richness is not always beneficial to aquaculture, biodiversity, human well‐being or nature. In fact, citizens in all societal roles, including scientists, should revise their concepts about threats to fish biodiversity. Environmental policies require more than taxonomic diagnostics to achieve conservation goals under an incompatible scenario of a multiplying number of fish species and biotic homogenization. We advocate for countries in South America using science‐based strategies useful to maintain their social and economic growth along with their “remaining nature.” We live a crucial moment when the government overlooks threats to biodiversity and uses agribusiness as the most acceptable manner of fuelling the economy.  相似文献   

Soybean seed coat chitinase as a defense protein against the stored product pest Callosobruchus maculatus          下载免费PDF全文

Nadia CM Silva  Jamile G Conceição  Kayan Eudorico Ventury  Leonardo FR De Sá  Eduardo AG Oliveira  Izabela S Santos  Valdirene M Gomes  Monique N Costa  Andre TS Ferreira  Jonas Perales  Jose Xavier‐Filho  Kátia VS Fernandes  Antonia EA Oliveira 《Pest management science》2018,74(6):1449-1456

  相似文献   

Spray particle drift mitigation using field corn (Zea mays L.) as a drift barrier          下载免费PDF全文

Bruno C Vieira  Thomas R Butts  Andre O Rodrigues  Jeffrey A Golus  Kasey Schroeder  Greg R Kruger 《Pest management science》2018,74(9):2038-2046

  相似文献   

Light and electron microscopic evaluation of canine corneal endothelium following CO₂ photokeratotomy     

Allison Hoffman  Charlotte Ownby†  Terry W. Lehenbauer†  Don Samuelson§  Margi Gilmour†  Kenneth Bartels† 《Veterinary ophthalmology》2009,12(S1):28-34

  相似文献   

Comparison between the analgesic effects of morphine and tramadol delivered epidurally in cats receiving a standardized noxious stimulation     

Douglas S. Castro  Marta F.A. Silva  Andre C. Shih  Pedro P.A. Motta  Marcos V.M. Pires  Paulo O. Scherer 《Journal of Feline Medicine and Surgery》2009,11(12):948-953

  相似文献   

Removal of short‐range‐order minerals prior to grain‐size analysis of volcanic ash soils     

Andre Velescu  Tobias Meßmer  Thomas Scholten  Peter Kühn 《植物养料与土壤学杂志》2010,173(6):799-804

Incomplete dispersion of aggregates is a well‐known difficulty when analyzing soil texture of Andosols, particularly if no fresh soil material is available. To facilitate such investigations, several dispersion procedures were carried out on air‐dried samples rich in short‐range‐order minerals, originating from selected Andosol profiles (S Mexico). As a result, we propose an improved method based on a sequential chemical treatment with K oxalate, NH₄ oxalate, and oxalic acid that reliably removes cementing agents and allows for a stable dispersion of soil particles after addition of Na pyrophosphate. This method was proved to be well reproducible and highly reliable for routine grain‐size determinations. The potential error caused by the inherent risk of dissolving primary minerals or fresh volcanic glass remains far beyond the analytical error resulting from the incomplete and irreproducible dispersion of highly resistant aggregates by other commonly used techniques.  相似文献   

Rhabdomyolysis and Hyponatremia: A Cluster of Five Cases at the 161-km 2009 Western States Endurance Run     

Jessica Rose Bruso  Martin D. Hoffman  Ian R. Rogers  Linda Lee  Gary Towle  Tamara Hew-Butler 《The Forestry Chronicle》2010,21(4):303-308

  相似文献   

Evaluation of an indirect oscillometric blood pressure monitor in normotensive and hypotensive anesthetized dogs     

Andre Shih DVM  DACVA  Sheilah Robertson BVMS  PhD  DACVA  DECVAA  Alessio Vigani MV  Anderson Da Cunha DVM  MS  Luisito Pablo DVM  MS  DACVA  Carsten Bandt DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2010,20(3):313-318

Objective – To determine the accuracy and precision of an oscillometric noninvasive blood pressure device as a predictor of invasive direct blood pressure in healthy anesthetized hypotensive and normotensive dogs. Design – Prospective observational study. Setting – University teaching hospital. Animals – Eight crossbred adult dogs. Interventions – Anesthesia was induced with propofol and maintained with isoflurane. A catheter was placed in the dorsal pedal artery to record systolic, mean, and diastolic arterial blood pressures (aSAP, aMAP, and aDAP, respectively). The noninvasive blood pressure device cuff was placed around the contralateral front limb to record noninvasive systolic, mean, and diastolic blood pressure (nSAP, nMAP, and nDAP). Two states of blood pressure (BP) were studied: baseline state was established by keeping end‐tidal isoflurane concentration at 1.2±0.1%. The hypotensive state was achieved by maintaining the same isoflurane concentration while withdrawing approximately 40% of the animal's blood volume until aMAP was stable at approximately 40 mm Hg. At the end of the study, blood was returned to the animal and it was allowed to recover from anesthesia. Measurements and Main Results – Agreement between the direct and indirect BP measurements was determined by the Bland‐Altman method. The SAP and MAP but not DAP bias varied significantly between each BP state. Normotensive absolute biases (mean [SD]) for SAP, MAP, and DAP were ?14.7 mm Hg (15.5 mm Hg), ?16.4 mm Hg (12.1 mm Hg), and ?14.1 mm Hg (15.8 mm Hg), respectively. Absolute biases during the hypotensive state for SAP, MAP, and DAP were ?32 mm Hg (22.6 mm Hg), ?24.2 mm Hg (19.5 mm Hg), and ?16.8 mm Hg (17.2 mm Hg), respectively. Conclusion – The oscillometric device was not reliably predictive of intra‐arterial BP during hypotension associated with acute hemorrhage.  相似文献   

Original Study: Comparison of three intraosseous access techniques in cats     

Alex Bukoski PhD  DVM  Matthew Winter DVM  DACVR  Carsten Bandt DVM  DACVECC  Mary Wilson RT  CV  MR  CT  Andre Shih DVM  DACVA 《Journal of Veterinary Emergency and Critical Care》2010,20(4):393-397

Objective – To compare the placement feasibility and amount of bone trauma induced by 3 intraosseous (IO) access techniques in cats: an automatic impact penetration device (A), an automatic rotary insertion device (B), and a manual IO needle (C). Design – Prospective ex vivo study. Setting – University. Animals – Eighteen adult mixed breed feline cadavers. Interventions – Cadavers provided 72 total IO insertion locations divided equally between the right and left humerus and tibia. The 3 IO techniques were randomly allocated to these locations. Time to successful insertion, ease of insertion, and success rate were recorded. Each insertion site was analyzed for the number of bone fragments and defect diameter by computed tomography. Measurements and Main Results – Device B had lower time of insertion (P=0.01) compared with devices A and C. Device B had better ease of insertion scores (P<0.01) compared with devices A and C. No differences were detected between insertion sites (tibia versus humerus). No differences in the number of bone fragments, defect diameter, or success rate were detected among devices (P=0.06, 0.31, and 0.14, respectively). Conclusions – All 3 IO access methods evaluated yield acceptable results. Device B is significantly faster and easier to place in cat cadavers when compared with other methods.  相似文献   

Standardization of Equine Specific Enzyme-Linked Immunosorbent Assay for measuring Serum Insulin Concentrations     

J.P. Kayser  R.M. Hoffman  J.C. Haffner  H. Johansson 《Journal of Equine Veterinary Science》2011,31(5-6):247-248

  相似文献