Assessing the Consequences of Brood Parasitism and Nest Predation on Seasonal Fecundity in Passerine Birds

Pease, Craig M.; Grzybowski, Joseph A.

doi:10.2307/4088722

Cited by 142 publications

(106 citation statements)

References 22 publications

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“…Donovan and Thompson (2001) used a simple matrix model for a Neotropical migratory bird to demonstrate that, in addition to nest success, lambda was sensitive to the number of nest attempts, brood size, and occurrence of double brooding. In the absence of direct estimates of annual productivity, simple models that incorporate estimates of nest success, number of nest attempts, brood, size, and double brooding have been used to estimate annual productivity (Noon and Sauer 1992, Pease and Grzybowski 1995, Powell et al 1999, Donovan and Thompson 2001, and the sourcesink status of populations (Donovan et al 1995, Burke andNol 2000). Population projection models also need to incorporate density dependence.…”

Section: Reviewsmentioning

confidence: 99%

Recent advances in understanding migration systems of New World land birds

Faaborg

Holmes

Anders

et al. 2010

Ecological Monographs

291

259

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Abstract. Our understanding of migratory birds' year-round ecology and evolution remains patchy despite recent fundamental advances. Periodic reviews focus future research and inform conservation and management; here, we take advantage of our combined experiences working on Western Hemisphere avian migration systems to highlight recent lessons and critical gaps in knowledge. Among topics discussed are: (1) The pipeline from pure to applied researchers leaves room for improvement. (2) Population limitation and regulation includes both seasonal and between-season interactions. (3) The study of movements of small-bodied species remains a major research frontier. (4) We must increase our understanding of population connectivity. (5) With few exceptions, population regulation has barely been investigated. (6) We have increasingly integrated landscape configuration of habitats, large-scale habitat disturbances, and habitat quality impacts into models of seasonal and overall demographic success. (7) The post-breeding season (late summer for latitudinal migrants) is increasingly appreciated for its impacts on demography. (8) We recognize the diverse ways that avian brood parasites, nest predators, and food availability affect demography. (9) Source-sink and meta-population models help us understand migratory avian distributions among fragmented habitats. (10) Advances in modeling have improved estimates of annual survival and fecundity, but for few species. (11) Populations can be limited by ecological conditions in winter, but habitat needs are poorly known for most species at this time. (12) Migration tends to occupy broad spatial fronts that may change seasonally or when migrants cross major barriers. En route conditions can limit migrant populations; linking migration habitat quality indicators to fitness or population consequences presents a major challenge. (14) A variety of intra-tropical Neotropical migration patterns are recognizable, but almost nothing is known about these systems beyond descriptions of a few typical species' movements. (15) Global climate change scenarios predict range and phenology shifts of Neotropical migrant bird populations that must be considered in conservation plans. Future studies will depend on new technologies and the integration of modeling with sophisticated, large-spatial-scale measurement and parameter estimation; whether the pace of research and management involving migratory birds can match the growth of environmental threats remains to be seen.

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Section: Reviewsmentioning

confidence: 99%

Recent advances in understanding migration systems of New World land birds

Faaborg

Holmes

Anders

et al. 2010

Ecological Monographs

291

259

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“…However, none of these proposed, and/or modified, models for describing host populations, both with and without cowbird parasitism, incorporated the age structure of the brood-parasitic females. For example, in their model of a population of adult female hosts, May and Robinson (1985: equation 2) incorporated, "parasitism probability," p. The "simple" and "more complex" models of Pease and Grzybowski (1995) included the parameter of brood-parasitism rate, ρ. Grzybowski and Pease (1999: table 1 and equations 1a and 1b) incorporated into their suggested models cowbird abundance, C, and a cowbird auto-interference coefficient, m (representing a decrease in cowbirds' success in nests parasitized more than once).…”

Section: Age Structure Of Female Brood Parasites and Host-population mentioning

confidence: 99%

“…In many species of birds yearling females lay fewer eggs per clutch than do older individuals (Ricklefs 1973, Saether 1990, Forslund and Pärt 1995, so knowing the age structure of a cowbird population, especially of females, might be useful in predicting the pressure cowbird parasitism exerts on a population of hosts (McGeen 1972, Lowther 2015. Such information could contribute to various models of a host's population responses to cowbird parasitism (for example, see May and Robinson 1985, Pease and Grzybowski 1995, Grzybowski and Pease 1999, Schmidt and Whelan 1999, Powell and Knutson 2006. In addition, the age structure of adult male cowbirds in a population might affect dominance hierarchies and hence mating behaviors and the mating system (see review in Ortega 1998, and references therein).…”

mentioning

confidence: 99%

Age Structure of Adult Brown-headed Cowbirds in Southwest Colorado

Ortega¹,

Ortega²

2017

WBirds

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We live-trapped and banded Brown-headed Cowbirds (Molothrus ater) in La Plata County, southwest Colorado, during the breeding seasons of 1992 to 1999. We captured a total of 1034 adult males and 386 adult females. Although we could not determine the exact ages of newly captured males older than one year (after second year; ASY) and of newly captured adult females, we identified the minimum possible age of each bird captured or recaptured each year. We found that most cowbirds of either sex were 1 or 2 years old, though we recaptured some older individuals. The percentage of recaptured females ≥2 years old increased through the study but appeared to stabilize during the last three years, implying that these older individuals constituted a quarter to a third of the population. The mean estimated minimum age of adult males was significantly greater than that of adult females in 1997 but not in 1998 or 1999. The ratio of yearling to older males varied significantly by year with yearlings becoming more common in the later years of study. Incorporating the age structure of a Brown-headed Cowbird population, especially of females, may increase the utility of various models concerning host populations subjected to cowbird brood parasitism, and this information is relevant to estimating the number of cowbird eggs expected to be laid in an area during a breeding season.

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“…Like population models, these survival and re-nesting models may be simple or complex, depending on the data and the population to be modeled. Bennett and Etterson [19,61] developed a Markov process model specifically designed for chemical risk assessment, but other modeling frameworks are possible [62,63]. This example also provides a cautionary note concerning the generality of AOPs across species, because vulnerability to eggshell thinning from dichlorodiphenyldichloroethylene is not consistent across orders of birds (Falconiformes and Pelecaniformes) and not across Passeriformes, the most species-rich avian order, or Galliformes.…”

Section: Case 4: Calcium-adenosine Triphosphatasementioning

confidence: 99%

Adverse outcome pathways and ecological risk assessment: Bridging to population‐level effects

Kramer¹,

Etterson

Hecker³

et al. 2010

Enviro Toxic and Chemistry

217

166

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Abstract-Maintaining the viability of populations of plants and animals is a key focus for environmental regulation. Population-level responses integrate the cumulative effects of chemical stressors on individuals as those individuals interact with and are affected by their conspecifics, competitors, predators, prey, habitat, and other biotic and abiotic factors. Models of population-level effects of contaminants can integrate information from lower levels of biological organization and feed that information into higher-level community and ecosystem models. As individual-level endpoints are used to predict population responses, this requires that biological responses at lower levels of organization be translated into a form that is usable by the population modeler. In the current study, we describe how mechanistic data, as captured in adverse outcome pathways (AOPs), can be translated into modeling focused on population-level risk assessments. First, we describe the regulatory context surrounding population modeling, risk assessment and the emerging role of AOPs. Then we present a succinct overview of different approaches to population modeling and discuss the types of data needed for these models. We describe how different key biological processes measured at the level of the individual serve as the linkage, or bridge, between AOPs and predictions of population status, including consideration of community-level interactions and genetic adaptation. Several case examples illustrate the potential for use of AOPs in population modeling and predictive ecotoxicology. Finally, we make recommendations for focusing toxicity studies to produce the quantitative data needed to define AOPs and to facilitate their incorporation into population modeling. Environ. Toxicol. Chem. 2011;30:64-76. # 2010 SETAC

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Assessing the Consequences of Brood Parasitism and Nest Predation on Seasonal Fecundity in Passerine Birds

Cited by 142 publications

References 22 publications

Recent advances in understanding migration systems of New World land birds

Recent advances in understanding migration systems of New World land birds

Age Structure of Adult Brown-headed Cowbirds in Southwest Colorado

Adverse outcome pathways and ecological risk assessment: Bridging to population‐level effects

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