Potential of three aquatic predators to control mosquitoes in the presence of alternative prey: a comparative experimental assessment
R. Kumar A B , P. Muhid C , H.-U. Dahms B , L.-C. Tseng B and J.-S. Hwang B DA Ecosystem Research Lab, Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi, 110019, India.
B Institute of Marine Biology, National Taiwan Ocean University, Keelung, 202, Taiwan.
C Present address: Australian Rivers Institute, Griffith University, Nathan, Qld 4111, Australia.
D Corresponding author. Email: Jshwang@mail.ntou.edu.tw
Marine and Freshwater Research 59(9) 817-835 https://doi.org/10.1071/MF07143
Submitted: 7 August 2007 Accepted: 1 July 2008 Published: 7 October 2008
Abstract
Predator-induced control of pests depends on the predator’s preference for the target pest over naturally co-occurring prey species. We compared the larvivorous efficiency of three common freshwater predators: mosquitofish (Gambusia affinis; Baird and Girard, 1854), dragonfly naiads (Zyxomma petiolatum; Rambur, 1842) and copepods (Mesocyclops aspericornis; Daday, 1906) on different instars and the relative abundances of the mosquito Anopheles stephensi (Liston, 1901) in the presence of alternative cladoceran prey, either Moina macrocopa (Straus, 1820) or Daphnia similoides (Hudec, 1991). Larval removal rate decreased with increasing larval size and instar stage. The maximum consumption rate was by mosquitofish, followed by dragonfly naiads and copepods. The presence of either of the alternative prey significantly reduced larval consumption by all three predators, except in the D. similoides–mosquito larvae combination for naiads. Mosquitofish and copepods preferred early instars of the mosquito. Prey selectivity indices for early mosquito instars against D. similoides did not differ between mosquitofish and copepods, whereas naiads had significantly lower index values than the other two predators. Considering the negative impacts of mosquitofish on native assemblages, that is, its invasiveness and its lower selectivity for mosquito larvae, our results suggest that the feasibility of using copepods in large-scale control programs needs to be evaluated.
Additional keywords: biocontrol, foraging, preference, prey selection, vector control.
Acknowledgements
We thank four anonymous referees whose comments and suggestions substantially improved the quality of the manuscript. R. Kumar acknowledges the National Science Council, Taiwan, for a postdoctoral fellowship (0940020949Dt 2005/03/10). We acknowledge the support of the Taiwan nuclear power plant to J.-S. Hwang. Acharya Narendra Dev College, University of Delhi, is acknowledged for providing leave to the first author and the Indian Council of Medical Research is acknowledged for granting a Project Ref. No. 5/8-7(179)/2002-ECD-II to R. Kumar. We thank Catherine Leigh for her suggestions on a previous version of the manuscript. The study was permitted by the institutional ethics committee (Animal House Ethics Committee) of the University of Delhi.
Aditya, G. , and Saha, G. K. (2006). Predation of the beetle Rhantus sikkimensis (Coleoptera : Dytiscidae) on the larvae of Chironomus Meigen (Diptera : Chironomidae) of the Darjeeling Himalayas of India. Limnologica 36, 251–257.
Andrealis, T. G. , and Gere, M. A. (1992). Laboratory evaluation of Acanthocyclops vernalis and Diacylops bicuspidatus thomasi (Copepoda : Cyclopoida) as predators of Aedes canadensis and Ae. stimulans (Diptera : Culicidae). Journal of Medical Entomology 29, 974–979.
| PubMed |
Bellows, T. S. (2001). Restoring population balance through natural enemy introductions. Biological Control 21, 199–205.
| Crossref | GoogleScholarGoogle Scholar |
Brown, M. D. , Kay, B. H. , and Hendrix, J. H. (1991b). Evaluation of Australian Mesocyclops (Copepoda : Cyclopoida) for mosquito control. Journal of Medical Entomology 28, 618–623.
| PubMed |
Denoth, M. , Frid, L. , and Myers, J. H. (2002). Multiple agents in biological control: improving the odds? Biological Control 24, 20–30.
| Crossref | GoogleScholarGoogle Scholar |
Goodsell, J. A. , and Kats, L. B. (1999). Effect of introduced mosquitofish on pacific tree frogs and the role of alternative prey. Conservation Biology 13, 921–924.
| Crossref | GoogleScholarGoogle Scholar |
Hagman, M. , and Shine, R. (2007). Effects of invasive cane toads on Australian mosquitoes: does the dark cloud have a silver lining? Biological Invasions 9, 445–452.
| Crossref | GoogleScholarGoogle Scholar |
Ivantsoff, W. , and Aarn (1999). Detection of predation on Australian native fishes by Gambusia holbrooki. Marine and Freshwater Research 50, 467–468.
Kay, B. H. (1996). The use of predaceous copepods in controlling dengue and other vectors. Dengue Bulletin 20, 93–98.
Kumar, A. (1981). Biology of Indian dragonflies with special reference to seasonal regulation and larval development. Bulletin of Entomology 17, 37–47.
Landry, M. R. (1981). Switching between herbivory and carnivory by the planktonic marine copepod Calanus pacificus. Marine Biology 65, 77–82.
| Crossref | GoogleScholarGoogle Scholar |
Lounibos, L. P. , Escher, R. L. , Nishimura, N. , and Juliano, S. A. (1997). Long-term dynamics of a predator used for biological control and decoupling from mosquito prey in a subtropical treehole ecosystem. Oecologia 111, 189–200.
| Crossref | GoogleScholarGoogle Scholar |
Ritchie, S. A. , and Laidlaw-Bell, C. (1994). Do fish repel oviposition by Aedes taeniorhynchus? Journal of the American Mosquito Control Association 10, 380–384.
Sharma, S. K. , and Hamzakoya, K. K. (2001). Urban malaria, and Aedes aegypti, Vector of Dengue/DHF, in the Arabian Sea Islands of Lakshadweep, India. Dengue Bulletin 25, 88–91.
Torres-Estrada, J. , Rodriguez, M. H. , Cruz-Lopez, L. , and Arredondo-Jimenez, J. I. (2001). Selective oviposition by Aedes aegypti (Diptera : Culicidae) in response to Mesocyclops longisetus (Copepoda : Cyclopoidea) under laboratory and field conditions. Journal of Medical Entomology 38, 188–192.
Williams, D. D. (1997). Temporary ponds and their invertebrate communities. Aquatic Conservation: Marine & Freshwater Ecosystems 7, 105–117.
| Crossref | GoogleScholarGoogle Scholar |
Zoppi de Roa, E. , Gordon, E. , Montiel, E. , Delgado, L. , Berti, J. , and Ramos, S. (2002). Association of cyclopoid copepods with the habitat of the malaria vector Anopheles aquasalis in the Peninsula of Paria, Venezuela. Journal of the American Mosquito Control Association 18, 47–51.