scholarly journals Prey Consumption by a Large Aggregation of Barn Owls in an Agricultural Setting

2016 ◽  
Vol 27 ◽  
Author(s):  
Mark Browning ◽  
John Cleckler ◽  
Kayla Knott ◽  
Matthew Johnson
Keyword(s):  
Prey Consumption ◽  
Large Aggregation ◽  
Barn Owls ◽  
Agricultural Setting

scholarly journals Contamination by neonicotinoid insecticides in barn owls (Tyto alba) and Alpine swifts (Tachymarptis melba)

2021 ◽  
Vol 785 ◽  
pp. 147403
Author(s):  
Ségolène Humann-Guilleminot ◽  
Shirley Laurent ◽  
Pierre Bize ◽  
Alexandre Roulin ◽  
Gaétan Glauser ◽  
...  
Keyword(s):  
Tyto Alba ◽  
Neonicotinoid Insecticides ◽  
Barn Owls

scholarly journals Nidicolous beetle species richness is driven by Barn Owl’s nests occupancy and landscape structure

2021 ◽  
Author(s):  
Vivien Cosandey ◽  
Robin Séchaud ◽  
Paul Béziers ◽  
Yannick Chittaro ◽  
Andreas Sanchez ◽  
...  
Keyword(s):  
Species Richness ◽  
Landscape Structure ◽  
Barn Owl ◽  
Arthropod Community ◽  
Tyto Alba ◽  
Nest Material ◽  
Crop Fields ◽  
Nest Boxes ◽  
Bird Droppings ◽  
Barn Owls

AbstractBird nests are specialized habitats because of their particular composition including nest detritus and bird droppings. In consequence, they attract a specialized arthropod community considered as nidicolous, which includes species only found in bird nests (strictly nidicolous) or sometimes found in bird nests (facultatively nidicolous). Because the factors influencing the entomofauna in bird nests are poorly understood, in autumn 2019, we collected nest material in 86 Barn Owl (Tyto alba) nest boxes. We investigated whether the invertebrate species richness was related to Barn Owl nest box occupancy, the density of available nest boxes and the landscape structure. We found 3,321 nidicolous beetle specimens belonging to 24 species. Species richness of strictly nidicolous beetles was 2.7 times higher in nest boxes occupied by a family of Barn Owls the previous spring compared to unoccupied nest boxes. It was also higher in sites that were more often occupied by Barn Owls in the five previous years and in areas surrounded by a higher proportion of crop fields. For facultatively nidicolous beetles, the density of Barn Owl nest boxes enhanced the species richness. In conclusion, our study suggests that the strictly nidicolous beetles benefit from occupied nest boxes of Barn Owls, whereas facultatively nidicolous beetles look for nest boxes independently of whether Barn Owls occupy them. Our study highlights the importance of bird nests for a suite of invertebrates.

scholarly journals Didymo and Its Polysaccharide Stalks: Beneficial to the Environment or Not?

2021 ◽  
Vol 2 (1) ◽  
pp. 69-79
Author(s):  
Hurmat Ejaz ◽  
Esther Somanader ◽  
Uday Dave ◽  
Hermann Ehrlich ◽  
M. Azizur Rahman
Keyword(s):  
Invasive Species ◽  
Structural Component ◽  
Negative Effects ◽  
Adhesive Properties ◽  
The Past ◽  
Positive Side ◽  
Potential Benefits ◽  
Negative Impacts ◽  
Bodies Of Water ◽  
Agricultural Setting

Didymosphenia geminata diatoms, or Didymo, was first found to be an invasive species that could have negative impacts on the environment due to the aggressive growth of its polysaccharide-based stalks. The stalks’ adhesive properties have prompted park officials to alert the general public to limit further spread and contamination of this algae to other bodies of water. Although the negative effects of Didymo have been studied in the past, recent studies have demonstrated a potential positive side to this alga. One of the potential benefits includes the structural component of the polysaccharide stalks. The origin of the polysaccharides within stalks remains unknown; however, they can be useful in a waste management and agricultural setting. The primary purpose of this study was to describe both the harmful and beneficial nature of Didymo. Important outcomes include findings related to its application in various fields such as medicine and technology. These polysaccharides can be isolated and studied closely to produce efficient solar power cells and batteries. Though they may be harmful while uncontained in nature, they appear to be very useful in the technological and medical advancement of our society.

scholarly journals Night vision in barn owls: Visual acuity and contrast sensitivity under dark adaptation

2012 ◽  
Vol 12 (13) ◽  
pp. 4-4 ◽  
Author(s):  
J. Orlowski ◽  
W. Harmening ◽  
H. Wagner
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Dark Adaptation ◽  
Night Vision ◽  
Barn Owls

scholarly journals Local adaptation and matching habitat choice in female barn owls with respect to melanic coloration

2011 ◽  
Vol 25 (1) ◽  
pp. 103-114 ◽  
Author(s):  
A. N. DREISS ◽  
S. ANTONIAZZA ◽  
R. BURRI ◽  
L. FUMAGALLI ◽  
C. SONNAY ◽  
...  
Keyword(s):  
Local Adaptation ◽  
Habitat Choice ◽  
Barn Owls ◽  
Matching Habitat Choice

scholarly journals Mesothelioma in Agriculture in Lombardy, Italy: An Unrecognized Risk

2021 ◽  
Vol 18 (1) ◽  
pp. 358
Author(s):  
Carolina Mensi ◽  
Barbara Dallari ◽  
Marco Polonioli ◽  
Luciano Riboldi ◽  
Dario Consonni ◽  
...  
Keyword(s):  
Cohort Studies ◽  
Malignant Mesothelioma ◽  
Asbestos Exposure ◽  
Agricultural Workers ◽  
Wine Production ◽  
Maintenance And Repair ◽  
Lombardy Region ◽  
Frequent Exposure ◽  
Agricultural Setting ◽  
Jute Bags

Cohort studies showed consistently low risks for malignant mesothelioma (MM) among agricultural workers, however the investigated exposures did not include asbestos. Our aim is to describe sources of asbestos exposure of MM in agriculture. Twenty-six MM cases in agricultural or seed trades workers were identified through the MM registry of the Lombardy region, Italy in 2000–2016. Asbestos exposures were investigated through a standardized questionnaire. The most frequent exposure circumstances were recycled jute bags previously containing asbestos (11 cases) and maintenance and repair of asbestos roofs (12 subjects). Three subjects performed maintenance and repair of tractor asbestos brakes and two used asbestos filters for wine production. Our data suggest asbestos exposure opportunities in the agricultural setting, underlining the need to look for this exposure in subjects affected with mesothelioma.

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