Mountain Plover responses to deltamethrin treatments on prairie dog colonies in Montana
- 27 December 2012
- journal article
- Published by Springer Science and Business Media LLC in Ecotoxicology
- Vol. 22 (2), 415-424
- https://doi.org/10.1007/s10646-012-1035-8
Abstract
Pyrethroid insecticides containing deltamethrin provide broad spectrum insect control that can adversely affect food supplies of insectivorous birds. I hypothesized that this could result in lowered nest survival for a ground-nesting insectivorous bird, the Mountain Plover (Charadrius montanus), which preferentially nests on prairie dog colonies. I studied Mountain Plover nest survival in 2003–2010 at a small cluster of black-tailed prairie dog (Cynomys ludovicianus) colonies in north-central Montana. Three colonies were treated with deltamethrin to control fleas and limit the spread of plague; four untreated colonies served as controls. I monitored 412 plover nests during the 8 year study (264 on treatment colonies and 148 on control colonies) and found a strong negative effect of deltamethrin treatments on nest survival (βDust = −1.24, 95 % CI was −2.00 to −0.48) in the years following the actual treatment (2004–2006). I conclude that the observed treatment effect most likely occurred because of changes in insect (food) availability for the plover, and this in turn lowered nest survival because adults spent more time off nests or switched to less desirable insect prey. These results lend support to the need to consider the indirect effects of insecticide treatments on non-target species and suggest a potential conflict in current plague management strategies for prairie dogs.Keywords
This publication has 46 references indexed in Scilit:
- Prairie Dogs: An Ecological Review and Current BiopoliticsThe Journal of Wildlife Management, 2007
- The effects of spraying deltamethrin for tsetse fly control on insectivorous bird populations in the Okavango Delta, BotswanaAfrican Journal of Ecology, 2007
- INFLUENCES OF INTRODUCED PLAGUE ON NORTH AMERICAN MAMMALS: IMPLICATIONS FROM ECOLOGY OF PLAGUE IN ASIAJournal of Mammalogy, 2001
- Program MARK: survival estimation from populations of marked animalsBird Study, 1999
- A Reevaluation of the Role of Prairie Dogs in Great Plains GrasslandsConservation Biology, 1998
- Reproduction and nest behaviour of Tennessee warblers Vermivora peregrina in forests treated with Lepidoptera‐specific insecticidesJournal of Applied Ecology, 1998
- Growth and Life-History Changes in Gunnison's Prairie Dogs after a Plague EpizooticJournal of Mammalogy, 1997
- Bird fat reductions in forests treated with dimilin®Environmental Toxicology and Chemistry, 1993
- Effect of Diflubenzuron Application on Eastern Deciduous Forest BirdsThe Journal of Wildlife Management, 1990
- Effects of a carbaryl-induced depression in invertebrate abundance on the growth and behavior of American black duck and mallard ducklingsCanadian Journal of Zoology, 1984