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Evidence for carry-over effects of predator exposure on pathogen transmission potential
- Source :
- Proceedings of the Royal Society B: Biological Sciences, Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2015, 282 (1821), pp.20152430. ⟨10.1098/rspb.2015.2430⟩
- Publication Year :
- 2015
- Publisher :
- The Royal Society, 2015.
-
Abstract
- Accumulating evidence indicates that species interactions such as competition and predation can indirectly alter interactions with other community members, including parasites. For example, presence of predators can induce behavioural defences in the prey, resulting in a change in susceptibility to parasites. Such predator-induced phenotypic changes may be especially pervasive in prey with discrete larval and adult stages, for which exposure to predators during larval development can have strong carry-over effects on adult phenotypes. To the best of our knowledge, no study to date has examined possible carry-over effects of predator exposure on pathogen transmission. We addressed this question using a natural food web consisting of the human malaria parasite Plasmodium falciparum , the mosquito vector Anopheles coluzzii and a backswimmer, an aquatic predator of mosquito larvae. Although predator exposure did not significantly alter mosquito susceptibility to P. falciparum , it incurred strong fitness costs on other key mosquito life-history traits, including larval development, adult size, fecundity and longevity. Using an epidemiological model, we show that larval predator exposure should overall significantly decrease malaria transmission. These results highlight the importance of taking into account the effect of environmental stressors on disease ecology and epidemiology.
- Subjects :
- Male
life history
[SDV]Life Sciences [q-bio]
Predation
Food chain
MESH: Malaria, Falciparum/transmission
MESH: Animals
Malaria, Falciparum
Life history
Predator
Pathogen
Research Articles
General Environmental Science
media_common
Ecology
Transmission potential
Longevity
General Medicine
Anopheles coluzzii
3. Good health
carry-over effects
MESH: Larva/growth & development
[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology
MESH: Anopheles/physiology
MESH: Longevity
Larva
Female
General Agricultural and Biological Sciences
Food Chain
media_common.quotation_subject
Plasmodium falciparum
MESH: Insect Vectors
Biology
General Biochemistry, Genetics and Molecular Biology
Competition (biology)
MESH: Predatory Behavior
Heteroptera
MESH: Plasmodium falciparum/growth & development
Anopheles
parasitic diseases
Animals
Humans
MESH: Food Chain
host-parasite and predator-prey
MESH: Humans
General Immunology and Microbiology
fungi
MESH: Anopheles/growth & development
MESH: Heteroptera/physiology
MESH: Fertility
interactions
host–parasite and predator–prey interactions
MESH: Male
Insect Vectors
non-consumptive effects
MESH: Larva/physiology
Fertility
Predatory Behavior
MESH: Female
Subjects
Details
- ISSN :
- 14712954 and 09628452
- Volume :
- 282
- Database :
- OpenAIRE
- Journal :
- Proceedings of the Royal Society B: Biological Sciences
- Accession number :
- edsair.doi.dedup.....1c1302b6e2047f742081301ed3fe408e