Mate Guarding in the Mallard Anas platyrhynchos

Goodburn, S. F.

doi:10.2307/3675935

Cited by 18 publications

(4 citation statements)

References 16 publications

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“…High female mortality can also lead to an OSR bias (Ewen et al 2001). A matefinding CAE can be exacerbated if unpaired males disturb breeding pairs by attempting to steal mates (Goodburn 1984), harassing females (Ewen et al 2011) or increasing nest exposure to predators (Taylor et al 2001). Species can avoid a mate-finding CAE by evolving strategies to enable the location of mates at low densities (Berec et al 2017), or by avoiding low population density during breeding via aggregative nesting (Gascoigne et al 2009).…”

Section: Mate-finding Mate Choice and Facilitationmentioning

confidence: 99%

Undetected Allee effects in Australia’s threatened birds: implications for conservation

Crates

Rayner

Stojanović

et al. 2017

Emu - Austral Ornithology

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Allee effects occur when survival or reproductive success declines with decreasing population size or density. Species most severely impacted by Allee effects may be the very species for which these effects will be hardest to detect and overcome. This impedes effective conservation through a lack of evidence to drive management actions. We review the literature to identify (1) component Allee effects (components of fitness) which could lead to a demographic Allee effect (effect of all components on the population growth rate) in bird populations; and (2) traits that make species susceptible to component Allee effects. Concurrently, we assess the potential for undetected Allee effects to negatively influence the population growth rate of 14 critically endangered Australian bird species or subspecies. Whilst some (e.g. Helmeted Honeyeater) are unlikely to suffer from a demographic Allee effect, several (e.g. Great Knot, Orange-bellied Parrot) are susceptible to a number of component Allee effects and, hence, a demographic Allee effect. However, traits of the Regent Honeyeater suggests this species' decline in particular is accelerated by an undetected demographic Allee effect. For this species and others, an inability to detect Allee effects need not preclude efforts to account for their potential presence through precautionary conservation management.

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Section: Mate-finding Mate Choice and Facilitationmentioning

confidence: 99%

Undetected Allee effects in Australia’s threatened birds: implications for conservation

Crates

Rayner

Stojanović

et al. 2017

Emu - Austral Ornithology

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“…Females with increased nutrient reserves, in turn, lay eggs earlier in the breeding season (Pattenden & Boag 1989) and are more likely to survive the breeding effort (Ankney & MacInnes 1978). In some species mate guarding also protects females from forced extrapair copulation (FEPC) attempts by nonmates (Barash 1977;Mineau & Cooke 1979;Goodburn 1984;Seymour 1990;Sorenson 1994a, b), thereby also protecting paternity. In addition, it has been proposed that mate guarding may help to maintain the pair bond and protect the female from depredation (McKinney 1988).…”

Section: Mate Guarding and Testosteronementioning

confidence: 99%

“…Mate guarding is important to female breeding condition and success (Ashcroft 1976;Ankney & MacInnes 1978;Seymour & Titman 1978;Titman 1981;Gauthier 1987;Lamprecht 1989;Pattenden & Boag 1989) and is energetically costly for males (Ashcroft 1976;Titman 1981;Lamprecht 1989). Furthermore, in many waterfowl species, mate guarding is the only male contribution to the reproductive effort, aside from donating sperm (Goodburn 1984). Therefore, it would seem important to females to choose mates who guard them well.…”

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confidence: 99%

Female choice and the benefits of mate guarding by male mallards

Davis

2002

Animal Behaviour

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“…High female mortality can also lead to an OSR bias . A mate-finding CAE can be exacerbated if unpaired males disturb breeding pairs by attempting to steal mates (Goodburn 1984), harassing females (Ewen et al 2011) or increasing nest exposure to predators (Taylor et al 2001).…”

Section: Mate-finding Mate Choice and Facilitationmentioning

confidence: 99%

Ecology and conservation of the regent honeyeater

Crates

Rayner

Stojanović

et al. 2020

Australian Forestry

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Conservation of rare and highly mobile species is frequently limited by a lack of monitoring data.Critically endangered regent honeyeaters (Anthochaera phrygia, population = 350-400) pose a substantial conservation challenge because of their high mobility and irregular settlement throughout their estimated 600,000 km 2 range. Given an ongoing population decline, enhanced monitoring efforts to inform population management are needed. We conducted an occupancy survey of regent honeyeaters and other nectarivores over 880 km 2 of the species' core range in New South Wales, Australia, during spring 2015. We located approximately 70 regent honeyeaters, potentially representing 20% of the population. Presence of regent honeyeaters was best predicted by high local nectar abundance. Detectability of regent honeyeaters when breeding (0.59) was similar to common, co-occurring nectarivores and was sufficient to distinguish absence from non-detection. For rare and highly mobile species, monitoring approaches that prioritize sampling extent over site visit duration and explicitly accommodate their life-history attributes can provide valuable population data, with subsequent benefits for conservation.

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Mate Guarding in the Mallard Anas platyrhynchos

Cited by 18 publications

References 16 publications

Undetected Allee effects in Australia’s threatened birds: implications for conservation

Undetected Allee effects in Australia’s threatened birds: implications for conservation

Female choice and the benefits of mate guarding by male mallards

Ecology and conservation of the regent honeyeater

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