First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter grain crops in Rio Grande do Sul (Brazil)

First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter crops in Rio Grande do Sul (Brazil). Some species of Liogenys Guerín-Meneville, 1831 are known to cause damage to soybean, corn and other summer crops in the Brazilian "Cerrado" region. This work aimed to identify melolontid larvae associated with winter crops in Rio Grande do Sul state. Larvae and adults of Liogenys species were collected from the municipalities of Ijuí, Cruz Alta, Manoel Viana, São Luiz Gonzaga and São Francisco de Assis. The specimens were identified as L. bidenticeps Moser, 1919; L. fusca Blanchard, 1851, L. obesa Burmeister, 1855, and L. sinuaticeps Moser, 1918. This is the first record of these species associated with winter grain crops, for Rio Grande do Sul State. Biological and behavioral studies are necessary to confirm their association with host plants.

Open Door Newsletter of the Library, Winter 2007

The Open Door newsletter is produced by the Iowa Commission for the Blind. It is published twice a year with information about the library programs and what is going on.

Open Door Newsletter of the Library, Winter 2009

The Open Door newsletter is produced by the Iowa Commission for the Blind. It is published twice a year with information about the library programs and what is going on.

CrossRoads, Winter 2009

Quarterly publication of the Governor's Traffic Safety Bureau, Iowa Department of Public Safety containing traffic safety and related information and news articles

IOWATER, Vol. 1, no.1, Winter 2000

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 2, no.1, Winter 2001

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 2, no.1, Winter 2001

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 3, no.1, Winter 2002

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 4, no.1, Winter 2003

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 1, Winter 2005

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 1, Winter 2006

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

IOWATER, Vol. 2, Winter 2007

Water fact sheet for Iowa Department of Natural Resources and the Geological Bureau.

Tawny Owl Strix aluco as a bioindicator of Barn Owl Tyto alba breeding and the effect of winter severity on Barn Owl reproduction

In the temperate zone, food availability and winter weather place serious constraints on European Barn Owl Tyto alba populations. Using data collected over 22years in a Swiss population, we analysed the influence of early pre-breeding food conditions and winter severity on between-year variations in population size and reproductive performance. To estimate pre-breeding food conditions, we attempted a novel approach based on an index that combines Tawny Owl Strix aluco reproductive parameters and the occurrence of wood mice Apodemus sp. in their diet. Tawny Owls breed earlier in the season than Barn Owls and are strongly dependent on the abundance of wood mice for breeding. This index was strongly positively associated with the number of breeding pairs and early breeding in the Barn Owl. Winter severity, measured by snow cover and low temperatures, had a pronounced negative influence on the size of the breeding population and clutch size. Food conditions early in the breeding season and winter severity differentially affect the Barn Owl life cycle. We were able to use aspects of the ecology and demography of the Tawny Owl as an indicator of the quality of the environment for a related species of similar ecology, in this case the Barn Owl.