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Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Steven J. Hall
Field studies were conducted for 15 species of Iochroma Benth. and the nested genus Acnistus Schott to quantify the diversity of pollination systems and to assess the potential contribution of pollinator behavior to the persistence of closely related species in sympatry. We combined measures of pollinator visitation and pollen deposition to estimate the importance of major groups of pollinators for each species, and we calculated proportional similarity in the pollinator assemblage among species. We found that 12 species of Iochroma, encompassing a range of flower colors and sizes, were principally pollinated by hummingbirds and, in many cases, by the same …
Repellent Properties Of Δ-Octalactone Against The Tsetse Fly, Glossina Morsitans Morsitans, Martin T. Mwangi, Nicholas K. Gikonyo, Isaiah O. Ndiege
Repellent Properties Of Δ-Octalactone Against The Tsetse Fly, Glossina Morsitans Morsitans, Martin T. Mwangi, Nicholas K. Gikonyo, Isaiah O. Ndiege
Martin M. Thuo
δ-octalactone, produced by several Bovidae, has been suggested as a potential repellant of tsetse fly attack. Racemic δ-octalactone was synthesized via an abbreviated route. The product was assayed against 3-day old starved teneral female tsetse flies, Glossina morsitans morsitans Wiedemann (Diptera: Glossinidae), in a choice wind tunnel and found to be a potent tsetse repellent at doses ≥0.05 mg in 200 μl of paraffin oil (0.05 >p >0.01).
Behavioral Effects Of Contraception Management: The Use Of Porcine Zona Pellucida On Wild Horses, Cassandra M.V. Nuñez
Behavioral Effects Of Contraception Management: The Use Of Porcine Zona Pellucida On Wild Horses, Cassandra M.V. Nuñez
Cassandra M.V. Nuñez
The advent of immunocontraception with porcine zona pellucida (PZP) has all but revolutionized wild horse management, providing a more humane method of population control than earlier strategies. Early studies on Assateague Island National Seashore have described it as an ideal form of fertility control in that it reduces the chance of conception to below 10%, can be delivered remotely, is reversible (after short-term use), lacks debilitating physiological side effects, cannot pass through the food chain, and shows minimal effects on social behaviors. However, recent research in other populations has revealed behavioral and physiological side effects of long-term PZP use. These …