A survey was developed to examine the perception of equine practitioners regarding the occurrence of five equine neurologic diseases in the northeastern United States over the 10-year period between June 1, 1997 and June 1, 2007. This information was then compared with trends at Cornell University’s Equine Hospital during the same time span, which ingeneral agreed with practitioners’ opinions. ...

Field studies of mechanisms involved in population regulation have tended to focus on the roles of either intrinsic or extrinsic factors, but these are rarely mutually exclusive and their interactions can be crucial in determining dynamics. Experiments on red grouse Lagopus lagopus scoticus have shown that population instability can be caused both by the effects of a parasitic nematode, Trichos...

Four species of cyanobacteria isolated from estuarine habitats were studied in relation to salinity and pH on their growth rate and biomass production. The biochemicals like protein, carbohydrate and lipids were analyzed. The study has shown that although they could survive and grow at varying salinity, the range between 15 and 25 ppt was optimum for growth and biomass production in all the spe...

O objetivo deste trabalho é reportar a principal espécie de térmita associadas à deterioração espécies madeireiras, nas condições edafoclimáticas Rio Branco, AC. Foi instalado um campo apodrecimento no experimental da Embrapa Acre (10º01’30,7” S; 67º42’23,6” O) onde foram dispostos 463 corpos prova (estacas 5 x 50 cm) sem tratamento químico, 36 florestais amazônicas. Os em linhas, com espaçamen...