Little is known about the ecology and population structure of the Reddish Egret (Egretta rufescens). Furthermore, the effects of the near extirpation on genetic variation of Reddish Egrets are unknown. A 223-basepair region of the mitochondrial DNA (mtDNA) control region was sequenced in 149 Reddish Egret samples from sixteen breeding colonies along the Texas Coast to investigate genetic diversity and population structure. Despite experiencing a severe reduction in population size, Reddish Egrets retained a moderate amount of haplotype (0.705) and nucleotide diversity (0.005). A mismatch distribution among haplotypes and non-equilibrium relationship between the number and similarity of haplotypes (Fu's Fs) are consistent with historical population size changes. No evidence of genetic structuring was found among either colonies or color morphs. Reddish Egrets along the Texas Coast appear to form a single panmictic population. The results of this first conservation genetic study of Reddish Egrets serve as a foundation for management and additional research.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.