Migratory salmon smolts exhibit consistent interannual depensatory predator swamping: Effects on telemetry‐based survival estimates

2020 ◽  
Vol 30 (1) ◽  
pp. 18-30
Author(s):  
Nathan B. Furey ◽  
Eduardo G. Martins ◽  
Scott G. Hinch
Keyword(s):  
Predator Swamping

scholarly journals Does predator swamping promote synchronous emergence of turtle hatchlings among nests?

2007 ◽  
Vol 19 (1) ◽  
pp. 35-40 ◽  
Author(s):  
J. K. Tucker ◽  
G. L. Paukstis ◽  
F. J. Janzen
Keyword(s):  
Predator Swamping

Predator swamping and supplementary feeding do not improve reintroduction success for a threatened Australian mammal, Bettongia lesueur

2016 ◽  
Vol 38 (2) ◽  
pp. 177 ◽  
Author(s):  
Hannah L. Bannister ◽  
Catherine E. Lynch ◽  
Katherine E. Moseby
Keyword(s):  
Site Fidelity ◽  
South Australia ◽  
Supplementary Feeding ◽  
Supplementary Food ◽  
European Settlement ◽  
Release Group ◽  
Population Establishment ◽  
Reintroduction Success ◽  
Broad Scale ◽  
Predator Swamping

Broad-scale Australian mammal declines following European settlement have resulted in many species becoming regionally or globally extinct. Attempts to reintroduce native mammals are often unsuccessful due to a suboptimal number of founders being used, high rates of predation and a lack of knowledge of the reintroduction biology for the species concerned. We trialled predator swamping and supplementary feeding in an attempt to offset predation and improve reintroduction success for the burrowing bettong (Bettongia lesueur) in arid South Australia. We compared population longevity of a large release group (1266 animals) with five releases of smaller groups (~50 animals at each). We compared release sites with (n = 5) and without (n = 1) supplementary food to determine whether site fidelity, body condition and reproduction were affected, and whether these traits aided population establishment. Predator swamping did not facilitate reintroduction success, with no bettongs detected more than 122 days after release. While supplementary food increased site fidelity and persistence at release sites, bettongs failed to establish successfully at any site. Neither predator swamping nor supplementary feeding enhanced reintroduction success at our sites but results suggested that supplementary feeding should be explored as an aid to reintroduction success for Australian mammals.

Predator swamping reduces predation risk during nocturnal migration of juvenile salmon in a high-mortality landscape

2016 ◽  
Vol 85 (4) ◽  
pp. 948-959 ◽  
Author(s):  
Nathan B. Furey ◽  
Scott G. Hinch ◽  
Arthur L. Bass ◽  
Collin T. Middleton ◽  
Vanessa Minke-Martin ◽  
...  
Keyword(s):  
Predation Risk ◽  
High Mortality ◽  
Juvenile Salmon ◽  
Nocturnal Migration ◽  
Predator Swamping
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