scholarly journals Influence of predation risk and food supply on nocturnal fish foraging distributions along a mangrove–seagrass ecotone

2010 ◽  
Vol 414 ◽  
pp. 223-235 ◽  
Author(s):  
N Hammerschlag ◽  
MR Heithaus ◽  
JE Serafy
Keyword(s):  
Predation Risk ◽  
Food Supply ◽  
Nocturnal Fish

Experimental support for the cost–benefit model of lizard thermoregulation: the effects of predation risk and food supply

Oecologia ◽  
2007 ◽  
Vol 155 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Gábor Herczeg ◽  
Annika Herrero ◽  
Jarmo Saarikivi ◽  
Abigél Gonda ◽  
Maria Jäntti ◽  
...  
Keyword(s):  
Predation Risk ◽  
Food Supply ◽  
Cost Benefit ◽  
Experimental Support ◽  
The Cost

scholarly journals Mass-dependent predation risk as a mechanism for house sparrow declines?

2005 ◽  
Vol 2 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Ross MacLeod ◽  
Phil Barnett ◽  
Jacquie Clark ◽  
Will Cresswell
Keyword(s):  
Predation Risk ◽  
Food Supply ◽  
Western Europe ◽  
House Sparrow ◽  
Population Decline ◽  
Passer Domesticus ◽  
House Sparrows ◽  
Fat Reserves ◽  
Mass Dependent ◽  
Starvation Risk

House sparrow ( Passer domesticus ) numbers have declined rapidly in both rural and urban habitats across Western Europe over the last 30 years, leading to their inclusion on the UK conservation red list. The decline in farmland has been linked to a reduction in winter survival caused by reduced food supply. This reduction in food supply is associated with agricultural intensification that has led to the loss of seed-rich winter stubble and access to spilt grain. However, urban house sparrows have also declined, suggesting that reduced food supply in farmland is not the sole reason for the decline. Here, we show that changes in house sparrow mass and thus fat reserves are not regulated to minimize starvation risk, as would be expected if limited winter food were the only cause of population decline. Instead, the species appears to be responding to mass-dependent predation risk, with starvation risk and predation risk traded-off such that house sparrows may be particularly vulnerable to environmental change that reduces the predictability of the food supply.

IOM Recommends Less Salt in Food Supply

2010 ◽  
Vol 38 (5) ◽  
pp. 6
Author(s):  
ELIZABETH MECHCATIE
Keyword(s):  
Food Supply

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.

The Food Supply of Shanghai

1948 ◽  
Vol 17 (11) ◽  
pp. 133-135
Author(s):  
Rhoads Murphey
Keyword(s):  
Food Supply

Impact of modern Retail over Food Supply Chain Management

2012 ◽  
Vol 3 (1) ◽  
pp. 45-47
Author(s):  
N.Arunfred N.Arunfred ◽  
◽  
Dr.D.Kinslin Dr.D.Kinslin
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Food Supply ◽  
Food Supply Chain ◽  
Chain Management

Phosphorus: Past History and Contributions to the Global Food Supply

2019 ◽  
Vol 103 (1) ◽  
pp. 6-8 ◽  
Author(s):  
Terry Roberts
Keyword(s):  
Food Security ◽  
Food Supply ◽  
Food Production ◽  
Production Systems ◽  
Past History ◽  
Phosphate Fertilizer ◽  
Global Food ◽  
Global Food Supply

Since its early rudimentary forms, phosphate fertilizer has developed in step with our understanding of successful food production systems. Recognized as essential to life, the responsible use P in agriculture remains key to food security.

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