0666 The physiological consequences of ingesting a toxic plant (Diplotaxis tenuifolia) and medicinal supplements influence subsequent foraging decisions by sheep

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 318-318
Author(s):  
F. H. Catanese ◽  
J. J. Villalba ◽  
R. A. Distel
Keyword(s):  
Foraging Decisions ◽  
Toxic Plant

scholarly journals Exolytic hydrolysis of toxic plant glucosides by guinea pig liver cytosolic beta-glucosidase.

1992 ◽  
Vol 267 (20) ◽  
pp. 14027-14032
Author(s):  
V Gopalan ◽  
A Pastuszyn ◽  
W R Galey ◽  
R.H. Glew
Keyword(s):  
Guinea Pig ◽  
Pig Liver ◽  
Beta Glucosidase ◽  
Toxic Plant ◽  
Hydrolysis Of ◽  
Guinea Pig Liver

scholarly journals C. elegans discriminates colors to guide foraging

Science ◽  
2021 ◽  
Vol 371 (6533) ◽  
pp. 1059-1063 ◽  
Author(s):  
D. Dipon Ghosh ◽  
Dongyeop Lee ◽  
Xin Jin ◽  
H. Robert Horvitz ◽  
Michael N. Nitabach
Keyword(s):  
Stress Response ◽  
Cellular Stress ◽  
Color Discrimination ◽  
Cellular Stress Response ◽  
Blue Pigment ◽  
Natural Environments ◽  
C Elegans ◽  
Evolutionarily Conserved ◽  
Foraging Decisions ◽  
Light Guides

Color detection is used by animals of diverse phyla to navigate colorful natural environments and is thought to require evolutionarily conserved opsin photoreceptor genes. We report that Caenorhabditis elegans roundworms can discriminate between colors despite the fact that they lack eyes and opsins. Specifically, we found that white light guides C. elegans foraging decisions away from a blue-pigment toxin secreted by harmful bacteria. These foraging decisions are guided by specific blue-to-amber ratios of light. The color specificity of color-dependent foraging varies notably among wild C. elegans strains, which indicates that color discrimination is ecologically important. We identified two evolutionarily conserved cellular stress response genes required for opsin-independent, color-dependent foraging by C. elegans, and we speculate that cellular stress response pathways can mediate spectral discrimination by photosensitive cells and organisms—even by those lacking opsins.

scholarly journals Environmental Health Risks and Housing Values: Evidence from 1,600 Toxic Plant Openings and Closings

2015 ◽  
Vol 105 (2) ◽  
pp. 678-709 ◽  
Author(s):  
Janet Currie ◽  
Lucas Davis ◽  
Michael Greenstone ◽  
Reed Walker
Keyword(s):  
Low Birthweight ◽  
Infant Health ◽  
Housing Markets ◽  
Housing Values ◽  
Regulatory Oversight ◽  
Industrial Plants ◽  
Toxic Emissions ◽  
Environmental Health Risks ◽  
Rich Data ◽  
Toxic Plant

Regulatory oversight of toxic emissions from industrial plants and understanding about these emissions' impacts are in their infancy. Applying a research design based on the openings and closings of 1,600 industrial plants to rich data on housing markets and infant health, we find that: toxic air emissions affect air quality only within 1 mile of the plant; plant openings lead to 11 percent declines in housing values within 0.5 mile or a loss of about $4.25 million for these households; and a plant's operation is associated with a roughly 3 percent increase in the probability of low birthweight within 1 mile. (JEL I12, L60, Q52, Q53, Q58, R23, R31)

scholarly journals INTOXICAÇÃO AGUDA PELA SAMAMBAIA (Pteridium aquilinum, L. Kuhn), EM BOVINOS DA RAÇA ABERDEEN ANGUS

2002 ◽  
Vol 7 (1) ◽  
Author(s):  
W. S. MARÇAL ◽  
L. GASTE ◽  
N. C. REICHERT NETTO ◽  
F. A. MONTEIRO
Keyword(s):  
Pteridium Aquilinum ◽  
Acute Intoxication ◽  
Bracken Fern ◽  
Nutrient Quality ◽  
Toxic Plant

Os autores descrevem a ocorrência de um surto de intoxicação aguda pela samambaia (Pteridium aquilinum, L. Kuhn), em bovinos da raça Aberdeen angus, criados numa propriedade rural localizada no município de Ortigueira, estado do Paraná. Um total de 14 animais vieram a óbito e a ocorrência do surto reacende a necessidade de encontrar soluções, mesmo que paliativas, para a prevenção de novos episódios. Segundo os autores, a superlotação de animais nos piquetes, tornaram as pastagens cultivadas muito baixas, favorecendo a procura pela samambaia, que mantinha-se mais viçosa e atraente ao consumo, o que possibilitou uma ingestão de grande quantidade em curto espaço de tempo. Acute intoxication by bracken fern (Pteridium aquilinum, L. Kuhn) In Aberdeen angus breed Abstract The present paper gives an account of a herd intoxication caused by the ingestion of bracken fern (Pteridium aquilinum,L. Kuhn) that took place in a farm at the region of Ortigueira, State of Paraná. Fourteen Aberdeen Angus bovines died of acute intoxication caused by the ingestion of large amounts of this toxic plant. Overpopulated and low nutrient quality pastured areas induce the large ingestion of bracken fern. Due to these reasons there is an urgent need for adequate solutions aiming to prevent the occurrence of such episodes.

scholarly journals Linking Foraging Decisions to Residential Yard Bird Composition

PLoS ONE ◽  
2012 ◽  
Vol 7 (8) ◽  
pp. e43497 ◽  
Author(s):  
Susannah B. Lerman ◽  
Paige S. Warren ◽  
Hilary Gan ◽  
Eyal Shochat
Keyword(s):  
Foraging Decisions ◽  
Bird Composition

scholarly journals Potential for identifying plant-based toxins on San hunter-gatherer arrowheads

2017 ◽  
Vol Volume 113 (Number 3/4) ◽  
Author(s):  
Madelien Wooding ◽  
Justin Bradfield ◽  
Vinesh Maharaj ◽  
Dwayne Koot ◽  
Lyn Wadley ◽  
...  
Keyword(s):  
Chemical Study ◽  
Ultra Performance Liquid Chromatography ◽  
Poisonous Plants ◽  
Toxic Compounds ◽  
Archaeological Material ◽  
The Past ◽  
Fresh Plant Material ◽  
Fragmentation Patterns ◽  
Toxic Plant ◽  
By Products

Abstract The antiquity of the use of hunting poisons has received much attention in recent years. In this paper we present the results of a pilot study designed to detect the presence of organic compounds, typically of less than 1200 Da, from poisonous plants that may have been used as hunting poisons in the past. We used ultra-performance liquid chromatography connected to a Synapt G2 high-resolution MS-QTOF mass spectrometer (UPLC-QTOF-MS) to provisionally identify plant-based toxins present in (1) extracts of fresh plant material, (2) a blind control recipe consisting of three plant ingredients and (3) a Hei||om arrow poison of unknown ingredients. Although not all expected toxic compounds were identified, those that were identified compared favourably with those reported in the literature and confirmed through databases, specifically the Dictionary of Natural Products and ChemSpider. MS/MS fragmentation patterns and accurate mass were used for tentative identification of compounds because archaeological residues usually contain insufficient material for unambiguous identification using nuclear magnetic resonance. We highlight the potential of this method for accurately identifying plant-based toxins present on archaeological artefacts and unique (albeit non-toxic) chemical markers that may allow one to infer the presence of toxic plant ingredients in arrow poisons. Any chemical study of archaeological material should consider the unique environmental degradative factors and be sensitive to the oxidative by-products of toxic compounds.

The benefits of being in a bad neighbourhood: plant community composition influences red deer foraging decisions

Oikos ◽  
2009 ◽  
Vol 118 (1) ◽  
pp. 18-24 ◽  
Author(s):  
Jennie N. Bee ◽  
Andrew J. Tanentzap ◽  
William G. Lee ◽  
Roger B. Lavers ◽  
Alan F. Mark ◽  
...  
Keyword(s):  
Community Composition ◽  
Plant Community ◽  
Red Deer ◽  
Plant Community Composition ◽  
Foraging Decisions
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