The alternative prey hypothesis supposes that predators supported by a primary prey species will shift to consume alternative prey during a decrease in primary prey abundance.
Mitchell J. Brunet +8 more
doaj +4 more sources
Predation risk is a function of alternative prey availability rather than predator abundance in a tropical savanna woodland ecosystem. [PDF]
Typically, factors influencing predation risk are viewed only from the perspective of predators or prey populations but few studies have examined predation risk in the context of a food web.
Nordberg EJ, Schwarzkopf L.
europepmc +2 more sources
The effect of the alternative prey, Paramecium caudatum (Peniculida: Parameciidae), on the predation of Culex pipiens (Diptera: Culicidae) by the copepods Macrocyclops albidus and Megacyclops viridis (Cyclopoida: Cyclopidae) [PDF]
Biological control can be an effective tool to combat public health risks associated with mosquito-borne disease. However, target impacts of biological control agents may be reduced by biotic contexts such as the presence of alternative prey.
Callaghan, Amanda +2 more
core +2 more sources
Alternative prey use affects helminth parasite infections in grey wolves. [PDF]
Summary Predators affect prey populations not only through direct predation, but also by acting as definitive hosts for their parasites and completing parasite life cycles. Understanding the affects of parasitism on prey population dynamics requires knowing how their predators’ parasite community is affected by diet and prey availability.
O. Friesen, J. Roth
semanticscholar +3 more sources
Effects of Corcyra cephalonica Egg Consumption on Population Fitness and Reproduction of the Whitefly Predator Serangium japonicum (Coleoptera: Coccinellidae) [PDF]
Ladybird beetle, Serangium japonicum (Coleoptera: Coccinellidae), is an important predatory natural enemy of whiteflies, and its mass rearing is crucial for biological control.
Jianfeng Liang +6 more
doaj +2 more sources
Influence of Alternative Prey on the Functional Response of a Predator in Two Contexts: With and without Intraguild Predation [PDF]
In biological control, joint releases of predators and parasitoids are standard. However, intraguild predation (IGP) can occur when a predator attacks a parasitoid, potentially affecting pest control dynamics.
Lizette Cicero +6 more
doaj +2 more sources
Habitat selection when killing primary versus alternative prey species supports prey specialization in an apex predator [PDF]
© 2019 The Zoological Society of London Many predators specialize on one or several prey species that they select from the range of potential prey. Predator specialization on primary versus alternative prey is driven in part by encounter rates with prey ...
B. Cristescu +4 more
semanticscholar +3 more sources
Alternative Prey and Artificial Diet of the Multicolored Asian Lady Beetle Harmonia axyridis: A Review [PDF]
As an important natural enemy insect, Harmonia axyridis has significant biological control effects on a variety of pests such as aphids in agroforestry ecosystems. The large-scale application of H. axyridis has long been limited by the unstable supply of
Qingqiu Zeng +4 more
doaj +2 more sources
The predatory mite, Neoseiulus bicaudus (Wainstein), is a potential biological control agent against spider mites and thrips. The objective of this experiment was to compare the effects of three diets on the life table of N. bicaudus.
Jie Su +4 more
semanticscholar +3 more sources
FUNCTIONAL RESPONSES: A QUESTION OF ALTERNATIVE PREY AND PREDATOR DENSITY [PDF]
Throughout the study of ecology, there has been a growing realization that indirect effects among species cause complexity in food webs. Understanding and predicting the behavior of ecosystems consequently depends on our ability to identify indirect effects and their mechanisms.
Tschanz, Britta +2 more
openaire +4 more sources

