NEW HOST FOR PSEUDOPTEROMALUS CALANDRAE (HOWARD) (HYMENOPTERA: PTEROMALIDAE) IN PUERTO RICO

Fitness of a Malathion-Resistant Strain of the Parasitoid Anisopteromalus calandrae (Hymenoptera: Pteromalidae)

Biological Þtness of a malathion-resistant (R) and a malathion-susceptible (S) strain of the solitary parasitoid Anisopteromalus calandrae (Howard) was compared when the wasps were parasitizing immature rice weevils, Sitophilus oryzae (L.), in stored wheat. Despite having a .2,500-fold naturally occurring resistance, in the absence of insecticide the R strain was equal to the S strain in abilit...

Puerto Rico

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Host-parasite interactions of tropical bats in Puerto Rico

Despite having nearly one thousand known extant species in the order of Chiroptera (Wilson and Reeder, 2005), bats remain little studied in terms of the parasites and pathogens they harbor, particularly those from tropical regions. This lack of documentation of the parasite fauna of bats is of some concern since tropical bats have been implicated in the emergence of several important zoonotic i...

Slavery in Puerto Rico

Influence of temperature on the functional response of Anisopteromalus calandrae (Hymenoptera: Pteromalidae), a parasitoid of Rhyzopertha dominica (Coleoptera: Bostrichidae)

The functional response of Anisopteromalus calandrae (Howard) parasitizing 4th-instar Rhyzopertha dominica (F.) on wheat was estimated over a range of temperatures and host densities. A functional response equation was used in which a quadratic component that included temperature was substituted for handling time. The instantaneous search rate increased with increasing temperatures. The maximum...