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Data from: Variance in within-pair reproductive success influences the opportunity for selection annually and over the lifetimes of males in a multi-brooded songbird

Citation

Germain, Ryan et al. (2020), Data from: Variance in within-pair reproductive success influences the opportunity for selection annually and over the lifetimes of males in a multi-brooded songbird, Dryad, Dataset, https://doi.org/10.5061/dryad.p2ngf1vpk

Abstract

In socially monogamous species, male reproductive success consists of ‘within-pair’ offspring produced with their socially-paired mate(s), and ‘extra-pair’ offspring produced with additional females throughout the population. Both reproductive pathways offer distinct opportunities for selection in wild populations, as each is composed of separate components of mate attraction, female fecundity, and paternity allocation. Identifying key sources of variance and covariance among these components is a crucial step towards understanding the reproductive strategies that males use to maximize fitness both annually and over their lifetimes. We use 16 years of complete reproductive data from a population of black-throated blue warblers (Setophaga caerulescens) to partition variance in male annual and lifetime reproductive success, and thereby identify if the opportunity for selection varies over the lifetimes of individual males and what reproductive strategies likely favor maximum lifetime fitness. The majority of variance in male reproduction was attributable to within-pair success, but the specific effects of individual components of variance differed between total annual and total lifetime reproductive success. Positive overall lifetime covariance between within-pair and extra-pair components indicates that males able to maximize within-pair success, particularly with double-brooding females, likely achieve higher overall lifetime fitness via both within-pair and extra-pair reproductive pathways.

Usage Notes

Data for 'Variance in within-pair reproductive success influences the opportunity for selection annually and over the lifetimes of males in a multi-brooded songbird'
Germain, Hallworth, Kaiser, Sillett, Webster, Evolution 2021.

This file contains all male Black-throated blue warblers present in our study area at Hubbard Brook Experimental Forest from 1999-2015.

For each entry (male-year), the identity, number of broods, number of offspring per brood, and number of young sired by the focal male are listed for all social and extra-pair females. Where males have multiple socially-paired females, data for each social female is presented in a separate row.

Key to variables:

Male_ID
 
Identity of Focal Male
Year
 
Year of study
male_age
 
Age of Focal Male
Terr_Boundary_210
Is Male's territory within 210m of the study area boundary? (0 = no, 1 = yes)
Num_Social_Fems
Number of Social Females
Social_Fem_ID_char
Social Female ID
social_female_age
Age of Social Female
Num_Broods_Social_Fem
Number of broods laid by Social Female
Num_Kids_Social_Fem
Number of offspring produced by Social Female
Num_Kids_per_Brood_Social_Fem
Number of offspring per brood
Num_WP_Kids
 
Number of young sired by focal male
prop_Pat_Social_Fem
Proportion of young sired by focal male
Social_Fem_EXPMT
Brood part of an experiment? (0 = no, 1 = yes)
EP_FEM_1_ID
 
Extra-Pair Female(1-5) ID
EP_Fem1_age
 
Extra-Pair Female(1-5) age
Num_Broods_EPFem1
Number of broods laid by Extra-Pair Female(1-5)
Num_Kids_EPFem1
Number of offspring produced by Extra-Pair Female(1-5)
Num_Kids_per_Brood_EP_Fem1
Number of offspring per brood
Num_EP_Kids_EPFem1
Number of young sired by focal male
prop_Pat_EPFem1
Proportion of young sired by focal male
EP_Fem1_EXPMT
 
Brood part of an experiment? (0 = no, 1 = yes)
EP_Fem1_Social_Mate_ID
Identity of Extra-Pair Female(1-5)'s Social Male
EP_Fem1_Social_Mate_age
Age of Extra-Pair Female(1-5)'s Social Male