Environmental contaminants are a concern for animal health, but contaminant exposure can
also be used as a tracer of foraging ecology. In particular, mercury (Hg) concentrations are …

Sexual size dimorphism (SSD) is a common phenomenon in most mammalian and poultry
species. This study was undertaken to investigate SSD in nondescript locally adapted …

Eggshell thickness is important for physiological, ecological, and ecotoxicological studies on
birds; however, empirical eggshell thickness measurements for many species and regions …

Expanding gull (Laridae) populations throughout the world have been attributed to the
availability of anthropogenic food subsidies. The influence of landfills on California Gull …

Este estudio fue realizado para investigar la posibilidad de clasificar los patos Muscovy
nigerianos en distintos ecotipos utilizando el aná-lisis discriminante secuencial y la …

Sex identification of birds is relevant to studies of evolutionary biology and ecology and is
often a central issue for the management and conservation of populations. The Ivory Gull …

The black-headed gull (Chroicocephalus ridibundus) is a small bird belonging to the
Laridae family. Their distribution and breeding broad area primarily cover the northern part …

Abstract The Curlew Sandpiper (Calidris ferruginea) displays sexual dimorphism in size and
in breeding plumage. We analysed biometric and plumage characteristics in adult Curlew …

Discriminant functions based on external body size measurements are widely used to sex
different gull species with great accuracy. However, all of them have been derived for adult …

The study was conducted to characterize morphologic and morphometric variations among
local duck populations found in the south-east ecological zone of Nigeria. A total of one …