Combined high rates of alternative breeding strategies unexpectedly found among populations of a solitary nesting raptor

被引：0

作者：

Rosenfield, Robert N. ^{[1
]}

Sonsthagen, Sarah A. ^{[2
]}

Stout, William E. ^{[3
]}

Driscoll, Timothy G. ^{[3
]}

Stewart, Andrew C. ^{[5
]}

Frater, Paul N. ^{[4
]}

Talbot, Sandra L. ^{[5
]}

机构：

[1] Univ Wisconsin Stevens Point, Dept Biol, 800 Reserve St, Stevens Point, WI 54481 USA

[2] Univ Nebraska, Sch Nat Resources, Nebraska Cooperat Fish & Wildlife Res Unit, US Geol Survey, Lincoln, NE USA

[3] Urban Raptor Res Project, Grand Forks, ND USA

[4] Univ Wisconsin Madison, Ctr Limnol, Madison, WI USA

[5] Northwestern Inst Art & Sci, Anchorage, AK USA

来源：

ECOLOGY AND EVOLUTION | 2024年 / 14卷 / 08期

关键词：

Accipiter cooperii; alternative mating strategies; conspecific brood parasitism; extra-pair paternity; floaters; CONSPECIFIC BROOD PARASITISM; GOSHAWK ACCIPITER-GENTILIS; EXTRA-PAIR PATERNITY; FEMALE COOPERS-HAWKS; CROSS-AMPLIFICATION; MICROSATELLITE LOCI; DENSITY; BIRDS; RELATEDNESS; SOFTWARE;

D O I：

10.1002/ece3.70190

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Social monogamy is the prevalent mating system in birds, but alternative strategies of extra-pair paternity (EPP) and conspecific brood parasitism (CBP) occur in many species. Raptors are virtually absent in discussions of broad taxonomic reviews regarding EPP and CBP likely because these strategies are mostly absent or at low frequency; CBP is unreported in solitary nesting raptors. In contrast, we found high frequencies of EPP (16%-31%) and CBP (15%-26%) nests among three populations of Cooper's Hawks (Accipiter cooperii) across the northern breeding range of this solitary nesting, socially monogamous species. EPP and CBP combined occurred in 42%-46% of all nests among populations and hence unexpectedly were nearly equivalent to proportions of genetically monogamous nests. Select covariates failed to predict presence of EPP and CBP in part because virtually all extra-pair adults were uncaught and likely were floaters. We found no support for the hypothesis that territorial females traded copulations for food to maximize energy intake for increased production. Our unique discoveries enhance knowledge of the extent and diversity of alternative breeding strategies among groups of avian and other animal species.

引用

页数：9