Extinction debt or habitat change? – Ongoing losses of woodland birds in north-eastern New South Wales, Australia

Ford, Hugh; Walters, Jeffrey R.; Cooper, Caren B.; Debus, Stephen; Doerr, Veronica

doi:10.1016/j.biocon.2009.08.022

Cited by 98 publications

(85 citation statements)

References 56 publications

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“…The capacity to improve the situation depends on understanding the interaction of the natural history of species with habitat features, subsequent demographic outcomes, and critical ecological processes within a system (Kavanagh et al 2007;Bowen et al 2009;Selwood et al 2009;Ford 2011). In one example, key drivers of extinctionproneness for some woodland birds differed among species: low dispersal ability was important for Brown Treecreepers (Climacteris picumnus), whereas nest predation leading to low recruitment was critical for Hooded Robins (Melanodryas cucullata) (Ford et al 2009). …”

Section: Avian Declines and The Need For Understanding Ecological Promentioning

confidence: 99%

“…It is thus unsurprising that inbreeding through population contraction leads to increased extinction risk (Saccheri et al 1998;Nieminen et al 2001;Frankham 2005a;O'Grady et al 2006). A decline in habitat quality may contribute to 'extinction debt' before demographic stochasticity finally delivers the coup de grâce (Ford et al 2009;Szabo et al 2011), but inbreeding depression may often drive demographic decline. It is detectable by genetic approaches, and is potentially reversible.…”

Section: Fitness Geneticsmentioning

confidence: 99%

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Towards modelling persistence of woodland birds: the role of genetics

Sunnucks

2011

Emu - Austral Ornithology

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Abstract. Assessing how environmental change affects the probability of persistence of organisms requires an understanding of dispersal through, and occupation of, landscapes, and the associated demographic outcomes. Projections of differences in persistence probability can then be made under different scenarios of land-use and global environmental change. Rates and distances of dispersal, and demographic change and trajectories, are difficult to measure accurately, but genetic approaches can make major contributions. For two decades the field of molecular ecology has been providing useful life-history information relevant to population management, including key ecological attributes such as disease-resistance and thermal biology, mobility, dispersal and gene flow, habitat connectivity, the spatial and temporal scales of population processes, and demography. Genetic estimators of these factors could be employed to a much greater extent than they are currently. To facilitate this increased use, genetic estimates of functional connectivity (mobility and gene flow of organisms) and demography need to be integrated directly into decision-making processes. Population genetics is well suited to Bayesian approaches, with associated benefits including the ability to consider many factors, and estimation of error and parameter sensitivities. Genetic estimators based on the mobility and reproductive success of individual organisms and their key ecological traits can make unique contributions alongside other types of data into agent-based, spatially explicit modelling approaches of real landscape scenarios at the range of scales needed by managers. Virtually all the tools to do this exist. It is imperative that genetic samples be collected for contemporary and future analyses.

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Section: Avian Declines and The Need For Understanding Ecological Promentioning

confidence: 99%

Section: Fitness Geneticsmentioning

confidence: 99%

Towards modelling persistence of woodland birds: the role of genetics

Sunnucks

2011

Emu - Austral Ornithology

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“…Franklin et al 1989) and cumulative losses of species from districts and regions (e.g. Saunders 1989;Ford et al 2009), ultimately leading to the listing of woodland bird species among Australia's threatened fauna.…”

mentioning

confidence: 99%

Declining woodland birds—is our science making a difference?

Bennett

Watson

2011

Emu - Austral Ornithology

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“…Clearing and fragmentation can result in a loss of habitat connectivity, decreasing dispersal and genetic diversity in biota (Webb & Erskine 2003;Cushman 2006), which in some cases may result in extinction or serious population declines (Mönkkönen & Reunanen 1999;Coulon et al 2004). The negative effects of fragmentation on dispersal and population viability across a range of taxa have been demonstrated extensively (Rathcke & Jules 1993;Andren 1994;Cooper & Walters 2002;Coulon et al 2004;Reed 2004;Becker et al 2007;Ford et al 2009), and modelling studies on gene flow across landscapes have quantified the influence of habitat structure on dispersal and population connectivity across large spatial scales ).…”

Section: Fragmentationmentioning

confidence: 99%

Riparian vegetation condition influences movement and microhabitat use by Mixophyes fasciolatus in South East Queensland

Schwenke¹

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Extinction debt or habitat change? – Ongoing losses of woodland birds in north-eastern New South Wales, Australia

Cited by 98 publications

References 56 publications

Towards modelling persistence of woodland birds: the role of genetics

Towards modelling persistence of woodland birds: the role of genetics

Declining woodland birds—is our science making a difference?

Riparian vegetation condition influences movement and microhabitat use by Mixophyes fasciolatus in South East Queensland

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