Nesting ecology of a naturalized population of MallardsAnas platyrhynchosin New Zealand

  title={Nesting ecology of a naturalized population of MallardsAnas platyrhynchosin New Zealand},
  author={Jennifer L. Sheppard and Courtney L. Amundson and Todd W. Arnold and David Klee},
Investigating the reproductive ecology of naturalized species provides insights into the role of the source population's characteristics vs. post‐release adaptation that influence the success of introduction programmes. Introduced and naturalized Mallards Anas platyrhynchos are widely established in New Zealand (NZ), but little is known regarding their reproductive ecology. We evaluated the nesting ecology of female Mallards at two study sites in NZ (Southland and Waikato) in 2014–15. We… 
Do mallard ducks feature in the diet of stoats in an agricultural landscape?
It is shown that stoats are an egg predator in the Southland agricultural landscape and mallard eggs may contribute to stoat assimilated diet early in the mallard breeding season before alternative prey items become available.
Managing propagule pressure to prevent invasive species establishments: propagule size, number, and risk-release curve.
  • O. Stringham, J. Lockwood
  • Environmental Science
    Ecological applications : a publication of the Ecological Society of America
  • 2021
The sensitivity analysis was able to specifically quantify how much reduction in a propagule pressure component(s) is needed to reach a given target establishment probability, suggesting that quantifying the three components of propagule Pressure should be a priority for invasive species prevention moving forward.


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Mallard survival and nesting ecology in the Lower Great Lakes Region, New York
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Costs and benefits of natal dispersal in yearling mallards Anas platyrhynchos
Nest success performance relative to dispersal distance varied among study sites but was unrelated to local upland nest cover, wetland habitat conditions, or conspecific density, suggesting that long-distance dispersers presumably benefitted when they were able to acquire better nest sites.
Reproduction and Survival of Female Mallards in the St. Lawrence River Valley, New York
Investigation of the breeding ecology of female mallards within the St. Lawrence River Valley of northern New York determined factors affecting reproductive success and survival, and management of mallards in the SLRV should focus on maintaining an agricultural land base and protecting wetlands.
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Investigating nest survival of mallards in intensively cropped northern Iowa, USA, where wetland and grassland habitats were highly fragmented found perimeter-to-area ratio of the nest patch was the most important predictor of daily nest survival, with nest survival decreasing with increasing PAR.
Endozoochory by mallard in New Zealand: what seeds are dispersed and how far?
The ability of mallards to disperse viable seeds up to 19 km within 48 h suggests they have an important and previously overlooked role as vectors for a variety of wetland or grassland plant species in New Zealand.
Effects of Large-Scale Predator Reduction on Nest Success of Upland Nesting Ducks
Nests initiated midseason had higher daily survival rates (DSR) than those initiated earlier or later in the season, and Predator reduction at the township scale provides managers with an effective tool to improve nest success at large spatial scales.
Reproductive Ecology of Three Tibetan Waterbird Species, with Special Reference to Life-History Alterations along Elevational Gradients
  • Xin Lu
  • Environmental Science
  • 2011
Xin Lu (2011) Reproductive ecology of three Tibetan waterbird species, with special reference to life-history alterations along elevational gradients. Zoological Studies 50(2): 192-202. Life-history
Predator control improves nesting success in Waikato forest fragments
The authors' data from tawa (Beilschmiedia tawa) forest remnants confirm that control of ship rats and possums alone is sufficient to improve nesting success of small arboreal birds in North Island forests.
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