Reconstructing the Historic Demography of an Endangered Seabird

Beissinger, Steven R.; Peery, M. Zachariah

doi:10.1890/06-0869

Cited by 43 publications

(29 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The principal advantage of using museum collections for comparative demographic studies is the potential availability of information from a wide range of species and regions for which mark-recapture studies are impractical. Although not pursued in this study, museum collections also provide historical data that can be used to examine changes in survival over time (e.g., Beissinger and Peery 2007).…”

Section: Introductionmentioning

confidence: 99%

Annual adult survival in several new world passerine birds based on age ratios in museum collections

2010

View full text Add to dashboard Cite

We estimated annual survival from proportions of first-year and older birds in museum collections of several species of North American and Neotropical passerine birds (Order Passeriformes). The quality of estimates of survival from museum specimens depends on accurate aging, usually based on plumage markers, and unbiased collecting. The advantages of an age-ratio approach are broad temporal and geographic sampling, large sample sizes, reduced bias from adult dispersal, and access to species and areas not readily sampled in mark-recapture studies. Biases in estimated survival due to sex-and agebased biases in collecting are discussed in detail. Survival estimates were higher in tropical compared to temperate populations/species in Pyrocephalus, Icterus, Pheucticus, and Cyanocompsa, but not Catharus. In seven of nine North American species, estimates of survival from museum collections exceeded those obtained in local MAPS mark-recapture studies. Generalizations concerning adult survival rates in natural populations continue to be elusive, but the use of a variety of estimation approaches will enrich the empirical database and strengthen confidence in perceived patterns of life-history traits.Zusammenfassung Wir haben die jährlichen Ü berlebenswahrscheinlichkeiten von mehreren Arten nordamerikanischer und neotropischer Sperlingsvögel (Ordnung Passeriformes) aus dem Zahlenverhältnis von 1-jährigen zu älteren Vögeln in Museumssammlungen abgeschätzt. Die Verlässlichkeit der Schätzung von Ü berlebensraten aus Museumsbälgen hängt von der genauen Altersbestimmung ab, die meist auf Gefiedermerkmalen beruhen, und der Zufälligkeit des Sammelns. Vorteile der AltersklassenMethode sind ihre breite geografische und zeitliche Anwendbarkeit, hohe Probenzahlen, reduzierter Einfluss der Wanderung adulter Tiere sowie Anwendbarkeit auf Arten oder Gebiete, bei denen Fang-Wiederfang-Studien nicht gut anwendbar sind. Erwartete Fehler bei der Schätzung durch geschlechts-oder alters-abhängiges Sammeln werden ausführlich diskutiert. Die gefundenen Ü berlebensraten waren höher in tropischen als in temperaten Populationen bzw. Arten von Pyrocephalus, Icterus, Pheucticus und Cyanocompsa, nicht aber bei Catharus. In sieben von neun nordamerikanischen Arten waren die mit der AltersklassenMethode geschätzten Ü berlebensraten höher als die aus lokalen MAPS Fang-Wiederfang-Studien. Allgemein gültige Aussagen zu Ü berlebenswahrscheinlichkeiten in natürlichen Vogelpopulationen sind mangels weiterhin schwierig. Die Anwendung verschiedener Schätzmethoden bietet die Möglichkeit, die empirische Datengrundlage zu verbreitern und damit life-history-Vergleiche auf eine bessere Grundlagen zu stellen.R. E. Shea: Deceased.Communicated by F. Bairlein.

show abstract

Section: Introductionmentioning

confidence: 99%

Annual adult survival in several new world passerine birds based on age ratios in museum collections

2010

View full text Add to dashboard Cite

show abstract

“…Conservation biologists try to identify factors that cause species' decline so they can develop management prescriptions for their recovery (Beissinger & Peery 2007). Our analysis emphasizes the role of local grey sources to reconstruct the historical demographic collapse of populations on a large time span.…”

Section: Discussionmentioning

confidence: 99%

“…The reconstructions of demographic collapses within scientific literature are recently available only for few species (Clarke et al 1988;Dennis et al 1991;Peterman et al 2003;Bivings 2006;Cox et al 2006;Beissinger & Peery 2007). Therefore, at least in the European context, the large availability of bibliographic sources starting from the Middle Ages, represents an opportunity to reconstruct the historical trends of large mammal and bird populations for which many anecdotic data are available.…”

Section: Discussionmentioning

confidence: 99%

Schematizing a historical demographic collapse on a large time span using local, secondary and grey data: The case of Italian roe deer Capreolus capreolus italicus in Central Italy

Battisti¹,

Gennaro²,

Gippoliti³

2015

Journal for Nature Conservation

View full text Add to dashboard Cite

“…Several studies show a stark contrast between proportional sensitivity and natural variability of vital rates for a wide range of species (Beissinger & Peery, ; Citta & Mills, ; Hoekman, Mills, Howerter, Devries, & Ball, ; Manlik et al., ; Mitchell, Pacifi, Grand, & Powell, ; Norris & McCulloch, ; Taylor et al., ). For example, in ungulate populations, adult survival consistently had the highest elasticity, but showed low temporal variability (Gaillard, Festa‐Bianchet, & Yoccoz, ).…”

Section: Caveats and Limitations To Proportional Sensitivity Analysismentioning

confidence: 99%

“…One example which illustrates that proportional sensitivity is not necessarily the best indicator for effectiveness of wildlife management actions is a study on a marbled murrelet ( Brachyramphus marmoratus ) (Order: Charadriiformes; Family: Alcidae) population in California. From 1892 to 1922, reproductive rates declined 8‐ to 9‐fold, while adult survival remained comparatively constant (Beissinger & Peery, ). Despite that growth rate was relatively insensitive to proportional changes in reproduction (Peery, Becker, & Beissinger, ), a life‐table response experiment (LTRE; see Data ) showed that historic reproductive rates would support stable populations, but contemporary rates would result in population declines (Beissinger & Peery, ).…”

Section: Caveats and Limitations To Proportional Sensitivity Analysismentioning

confidence: 99%

Applicability and limitations of sensitivity analyses for wildlife management

Manlik

Lacy

Sherwin

2017

Journal of Applied Ecology

View full text Add to dashboard Cite

Sensitivity analyses that assess the impact of changing vital rates on population growth have been widely used to guide conservation. If implemented with caution, they can provide guidance as to which management actions will optimize conservation outcomes. In this review, we first focus on the commonly used proportional sensitivity and elasticity analyses that change each vital rate by equal proportions, to assess their importance for wildlife management. These types of analyses also feature potential pitfalls and limitations, including (1) Each vital rate is usually on a different scale. Without appropriate scaling this can result in a flawed evaluation of the importance of vital rates. (2) Vital rates rarely change at equal proportions in nature. This can bring about misguided management recommendations on the basis of vital rate changes that are unrealistic. (3) Proportional sensitivity analyses often do not reflect the feasibility and effectiveness of altering particular demographic parameters. Consequently, relying solely on proportional sensitivities or elasticities can lead to flawed evaluation of the importance of vital rates and thus prioritization of management options that are unrealistic or ineffective. We outline alternative approaches, which involve assessing the impact of threats, the relative demography of stable and declining populations, the effect of observable variation of vital rates on population viability, and the potential effects of feasible management scenarios. Synthesis and applications. Sensitivity analyses are useful tools to guide wildlife management. If implemented and interpreted with care, sensitivity analyses can identify key demographic parameters and threats to population viability. However, their usefulness is limited, when applied without careful evaluation as to whether the perturbations evaluated are realistic, feasible and meet the need of wildlife managers. We caution against the over‐reliance on proportional sensitivity and elasticity analyses and point to alternative approaches, including life‐stage simulation analysis, vital rate sensitivity analysis or manual perturbations.

show abstract

Reconstructing the Historic Demography of an Endangered Seabird

Cited by 43 publications

References 46 publications

Annual adult survival in several new world passerine birds based on age ratios in museum collections

Annual adult survival in several new world passerine birds based on age ratios in museum collections

Schematizing a historical demographic collapse on a large time span using local, secondary and grey data: The case of Italian roe deer Capreolus capreolus italicus in Central Italy

Applicability and limitations of sensitivity analyses for wildlife management

Contact Info

Product

Resources

About