The Roger Revelle Commemorative Lecture Series was created by the Ocean Studies Board of the National Academies in honor of Roger Revelle to highlight the important links between ocean sciences and public policy. Dawn J. Wright, the eighteenth annual lecturer, spoke on April 28, 2017, at the Smithsonian National Museum...
Escape from parasites in their native range is one of many mechanisms that can contribute to the success of an invasive
species. Gnathiid isopods are blood-feeding ectoparasites that infest a wide range of fish hosts, mostly in coral reef habitats.
They are ecologically similar to terrestrial ticks, with the ability...
Members of Gram-positive Actinobacteria cause economically important diseases to plants. Within the Rhodococcus genus,
some members can cause growth deformities and persist as pathogens on a wide range of host plants. The current model
predicts that phytopathogenic isolates require a cluster of three loci present on a linear plasmid, with...
Epigenetic variation is likely to contribute to the phenotypic plasticity and adaptative
capacity of plant species, and may be especially important for long-lived
organisms with complex life cycles, including forest trees. Diverse environmental
stresses and hybridization/polyploidization events can create reversible heritable
epigenetic marks that can be transmitted to subsequent generations...
The diurnal fluctuations in solar irradiance impose a fundamental frequency on ocean biogeochemistry. Observations of the ocean carbon cycle at these frequencies are rare, but could be considerably expanded by measuring and interpreting the inherent optical properties. A method is presented to analyze diel cycles in particulate beam-attenuation coefficient (c[subscript...
Spawning salmon create patches of disturbance through redd digging which can reduce macroinvertebrate abundance and biomass in spawning habitat. We asked whether displaced invertebrates use non-spawning habitats as refugia in streams. Our study explored how the spatial and temporal distribution of macroinvertebrates changed during a pink salmon (Oncorhynchus gorbuscha) spawning...
This article argues that the international criminal justice system fails to sufficiently address conflict-related sexual violence in two critical ways: [1] by advocating a pro-prosecution, “end impunity” approach (defined as holding perpetrators accountable through criminal, civil, administrative or disciplinary proceedings) which applies the prevailing Euro-American model of justice designed to...
Spotted wing drosophila, Drosophila suzukii, is a devastating invasive pest of small and stone fruits in the Americas and Europe. To better understand the population dynamics of D. suzukii, we reviewed recent work on juvenile development, adult reproduction, and seasonal variation in life history parameters including the abiotic/biotic factors that...
Of 14 transgenic poplar genotypes (Populus tremula × Populus alba) with antisense 4-coumarate:coenzyme A ligase that were grown in the field for 2 years, five that had substantial lignin reductions also had greatly reduced xylem-specific conductivity compared with that of control trees and those transgenic events with small reductions in...
The Asian vinegar fly Drosophila suzukii (spotted wing Drosophila [SWD]) has emerged as a major invasive insect pest of small and stone fruits in both the Americas and Europe since the late 2000s. While research efforts have rapidly progressed in Asia, North America, and Europe over the past 5 years,...