| viremia in young herons and ibis infected with venezuelan encephalitis virus. | fifty-seven of 61 nestling, 8- to 30-day-old herons of three species (black-crowned night heron, great egret, and snowy egret), developed viremia lasting one to three days following subcutaneous inoculation with small doses of endemic or epidemic strains of venezuelan encephalitis virus from mexico, guatemala or venezuela. two epidemic strains from guatemala or venezuela stimulated levels of viremia similar to those following infection with enzootic strains. great egrets, striated and boat-bille ... | 1976 | 998614 |
| [the relationship between mosquito vectors and aquatic birds in the potential transmission of 2 arboviruses]. | the authors studied for two years the role of the chicks of aquatic birds in the arboviral cycles in coastal lagoons in central panama in order to determine the relation between culex (melanoconion) ocossa and mansonia (mansonia) dyari mosquitoes in the transmission and dissemination of the viruses of saint louis encephalitis (sle) and venezuelan equine encephalitis (vee). mosquitoes were captured every fifteen days on two consecutive nights to isolate the virus, using light traps (cdc) and bait ... | 1993 | 8101009 |
| breeding success of a colony of boat-billed herons cochlearius cochlearius (ciconiiformes: ardeidae) in pasturelands of costa rica. | the breeding success of a double-brooding colony of boat-billed herons cochlearius cochlearius was studied in pasturelands of costa rica. mean clutch size in the first clutches (2.9 eggs/nest) was higher than in second and repeat clutches (2.3 eggs/nest). breeding success was similar in the first attempt and second attempts (20.7% and 21.7%, respectively). in both attempts earlier nests enjoyed a higher breeding success. starvation of the youngest chicks within the nest and destruction of nests ... | 2006 | 18457150 |
| cytotaxonomy of the ciconiiformes (aves), with karyotypes of eight species new to cytology. | somatic karyotypes of 13 species of ciconiiform birds, phoenicopterus ruber chilensis, phoeniconaias minor, cochlearius cochlearius, geronticus eremita, threskiornis molucca, t. spinicollis, balaeniceps rex, ciconia ciconia, c. nigra, euxenura maguari, xenorhynchus asiaticus, ephippiorhynchus senegalensis, and leptoptilos crumeniferus are presented. the chromosomes of eight of these species are described in detail for the first time. of special interest are a case of structural heterozygosity in ... | 1982 | 7151490 |
| vitamin e deficiency and pansteatitis in juvenile boat-billed herons (cochlearius cochlearius). | steatitis due to vitamin e deficiency occurred in three 10-wk-old boat-billed herons (cochlearius cochlearius) despite daily placement of a powdered vitamin supplement on the fish that was subsequently washed off by the parents. physical findings included emaciation, yellow-brown subcutaneous nodules, a firm distended coelom, stomatitis, and yellow-white, submucosal pharyngeal nodules. clinical pathology revealed heterophilic leukocytosis, anemia, hypoproteinemia, and low plasma alpha (alpha)-to ... | 1999 | 10484150 |
| rates of single-copy dna evolution in herons. | dna-dna hybridization was used to discover the extent of single-copy dna similarity among 13 species of herons and one ibis. genetic distances among taxa were summarized as tm values in a folded matrix. from this matrix, trees with the same branching pattern were constructed by least squares under one of two assumptions: (1) that sister branches are equal in length and (2) that sister branches are not necessarily equal in length. the residual sums of squares of these trees were compared by f-tes ... | 1987 | 3447003 |
| osteosarcoma with multiple metastases in a panama boat-billed heron. | | 1982 | 6959989 |