Seasonal variations in suburban blackbird roosts in Aberdeen

Environmental and Health Studies of Kentucky Blackbird Roosts

Seasonal Variations and Sources of 17 Aerosol Metal Elements in Suburban Nanjing, China

In this work, the seasonal variations and sources of trace metal elements in atmospheric fine aerosols (PM2.5) were investigated for a year-long field campaign from July 2012 to June 2013, conducted in suburban Nanjing, eastern China, at a site adjacent to an industry zone. The PM2.5 samples collected across four seasons were analyzed for 17 metal elements, namely, Sodium (Na), Magnesium (Mg), ...

An Evaluation of 4-aminopyridine for Dispersing Winter Blackbird Roosts in Colorado

INTRODUCTION Blackbirds and starlings (Sturnus vulgaris) often establish large winter roosts in areas where their presence is objectionable because of economic, public health, and nuisance reasons. Several techniques are available for alleviating roost problems, including habitat manipulation, roost dispersal with mechanical and pyrotechnic devices (Mott et al 1978), and, where necessary, direc...

Seasonal variations of serum copper concentration in Raeini cashmere goats

The aim of this study is to determine the serum copper (Cu) concentration found in Iranian Raeini cashmere goats in different seasonal and climatic conditions. Twenty four male (6 to 18 months old) and 48 female (6 to 18 and 18 to 30 months old) Raeini goats were selected from the station, rural, and nomadic flocks. The average Cu concentrations among the male and female goats were 0.5 ± 0.04 a...

Seasonal variations in cryptorchidism.

The month of birth of boys undergoing orchidopexy in the Oxfordshire Health District during the years 1974-83 was analysed. A significant seasonal variation with a peak in April was found for those boys operated upon by paediatric surgeons at a young age (0-4). Possible causes of this variation and its relationship to the aetiology of cryptorchidism are discussed.