Buscar
Mostrando ítems 21-30 de 8111
Natural occurrence, biological activities and synthesis of eight-, nine-, and eleven-membered ring lactones
(Sociedade Brasileira de Química, 2008-01-01)
The natural occurrence, biological activities and synthetic approaches to natural eight-, nine-, and eleven-membered lactones is reviewed. These medium ring lactones are grouped according to ring size, and their syntheses ...
Natural occurrence of the entomopathogenic genus Pandora on spittlebug pests of crops and pastures in Argentina
(Wiley Blackwell Publishing, Inc, 2017-11)
The natural occurrence of entomophathogenic fungi infecting spittlebugs (Hemiptera:Cercopidae) considered serious pests to pasture grasses and crops in Argentina was investigated during summer˗autumn (December to May) from ...
Human introduction or natural dispersion? Atlantic Ocean occurrence of the Indo-Pacific whitetip reef shark Triaenodon obesus
(2018-02-01)
Occurrence of multiple whitetip reef sharks Triaenodon obesus in the Atlantic Ocean is reported for the first time from near a sunken ferry off the Paraná coast in south-eastern Brazil. This occurrence is hypothesized to ...
Dispersão e primeiro registro da espécie invasora kellicottia bostoniensis (Rotifera: Brachionidae) em dois reservatórios Brasileiros
(2017-01-01)
Aquatic ecosystems are subjected to biological invasions which can causes imbalances mainly in the native populations. In most freshwater environments rotifers are abundant and highly adapted. The North American rotifer ...
Natural occurrence of Zoophthora radicans (Entomophthorales: Entomophthoraceae) on Thaumastocoris peregrinus (Heteroptera: Thaumastocoridae), an invasive pest recently found in Brazil
(ACADEMIC PRESS INC ELSEVIER SCIENCESAN DIEGO, 2012)
Occurrence of Zoophthora radicans infecting nymphs and adults of Thaumastocoris peregrinus Carpintero and Dellape, 2006 is reported in Brazil. This is a new record of host for this fungal species and the first fungal ...
NATURAL TRIPLOIDY IN ASTYANAX-SCABRIPINNIS (PISCES, CHARACIDAE) AND SIMULTANEOUS OCCURRENCE OF MACRO B-CHROMOSOMES
(Univ Florence Botany Inst, 1994-07-01)
The occurrence of natural triploidy in two specimens of Astyanax scabripinnis collected in the Araqua river and in the Corrego das Pedras stream, respectively, is noticed. The triploid specimen from the Araqua river presented ...
Natural triploidy in Astyanax scabripinnis (Pisces, Characidae) and simultaneous occurrence of macro B-chromosomes
(1994-01-01)
The occurrence of natural triploidy in two specimens of Astyanax scabripinnis collected in the Araquá river and in the Córrego das Pedras stream, respectively, is noticed. The triploid specimen from the Araquá river presented ...
Natural occurrence of baculoviruses in populations of some Heliconiini (Lepidoptera; Nymphalidae) with symptomatological notes
(Sociedade Brasileira de Zoologia, 1983)
Seasonal variation of natural mortality factors of the guava psyllid Triozoida limbata
(Bulletin of Entomological Research, 2018)