Predation risk-induced adjustments in provisioning behavior for Horned Lark (Eremophila alpestris) in British Columbia

2018 ◽  
Vol 130 (1) ◽  
pp. 180-190 ◽  
Author(s):  
Elizabeth L. Goullaud ◽  
Devin R. De Zwaan ◽  
Kathy Martin
Keyword(s):  
British Columbia ◽  
Predation Risk ◽  
Provisioning Behavior ◽  
Horned Lark

scholarly journals Attempted predation of a diurnally active Spotted Bat (Euderma maculatum) by a Belted Kingfisher (Megaceryle alcyon)

2014 ◽  
Vol 127 (4) ◽  
pp. 346
Author(s):  
Thomas S. Jung
Keyword(s):  
British Columbia ◽  
Predation Risk ◽  
Diurnal Activity ◽  
Daytime Activity ◽  
Okanagan Valley

Most species of bats (Chiroptera) are nocturnal, and diurnal activity is only occasionally reported. I observed a Spotted Bat (Euderma maculatum) flying along a lakeshore in the Okanagan Valley of southcentral British Columbia, Canada, in mid-afternoon. The Spotted Bat flew along the shoreline and drank from the lake. During the course of its flight, the Spotted Bat was attacked by a Belted Kingfisher (Megaceryle alcyon), but it escaped. This is the first reported observation of a Spotted Bat active during the daytime. It is also the first reported observation of attempted predation of a bat by a Belted Kingfisher. It is not known how prevalent daytime activity is in Spotted Bats, but this observation supports the hypothesis that predation risk may be high for bats that are active during the day.

Trichaptum abietinum from British Columbia exhibited anti-proliferative and immuno-modulatory activities

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
A Barad ◽  
S Javed ◽  
CH Lee
Keyword(s):  
British Columbia

Sepsis in pediatric Extra Corporal Life Support (ECLS): the 6 year British Columbia experience

2006 ◽  
Vol 210 (S 5) ◽  
Author(s):  
G Kaczala ◽  
S Paulus ◽  
N Al-Dajani ◽  
W Jang ◽  
E Blondel-Hill ◽  
...  
Keyword(s):  
British Columbia ◽  
Life Support

Elevated nest predation risk promotes offspring size variation in birds with prolonged parental care.

2019 ◽  
Author(s):  
Gretchen F. Wagner ◽  
Emeline Mourocq ◽  
Michael Griesser
Keyword(s):  
Predation Risk ◽  
Reproductive Cycle ◽  
Perceived Risk ◽  
Nest Predation ◽  
Bird Species ◽  
Size Variation ◽  
Egg Laying ◽  
Offspring Size ◽  
Natural Predation ◽  
Risk Spreading

Predation of offspring is the main cause of reproductive failure in many species, and the mere fear of offspring predation shapes reproductive strategies. Yet, natural predation risk is ubiquitously variable and can be unpredictable. Consequently, the perceived prospect of predation early in a reproductive cycle may not reflect the actual risk to ensuing offspring. An increased variance in investment across offspring has been linked to breeding in unpredictable environments in several taxa, but has so far been overlooked as a maternal response to temporal variation in predation risk. Here, we experimentally increased the perceived risk of nest predation prior to egg-laying in seven bird species. Species with prolonged parent-offspring associations increased their intra-brood variation in egg, and subsequently offspring, size. High risk to offspring early in a reproductive cycle can favour a risk-spreading strategy particularly in species with the greatest opportunity to even out offspring quality after fledging.

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