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Recent acoustic telemetry research has demonstrated that a portion of the common snook Centropomus undecimalis population in Florida skips annual spawning; however, the details of why some individuals skip spawning are unclear. We conducted a comprehensive study of C. undecimalis reproductive biology to determine if a certain population demographic (e.g. size, age, sex, biological condition) skips spawning in a representative...
Status of truffle science and cultivation in North AmericaNARA Subscribed
Background Truffles are subterranean fungal fruiting bodies that are highly prized for their culinary value. Cultivation of truffles was pioneered in Europe and has been successfully adapted in temperate regions throughout the globe. Truffle orchards have been established in North America since the 1980s, and while some are productive, there are still many challenges that must be overcome to develop a viable North American tru...
CCS under Article 6 of the Paris AgreementNARA Subscribed
Host phylogeny and ecological associations best explain Wolbachia host shifts in scale insectsNARA Subscribed
Wolbachia are among the most prevalent and widespread endosymbiotic bacteria on Earth. Wolbachia 's success in infecting an enormous number of arthropod species is attributed to two features: the range of phenotypes they induce in their hosts, and their ability to switch between host species. Whilst much progress has been made in elucidating their induced phenotypes, our understanding of Wolbachia host‐shifting is still very l...
The aerobic thermoalkaliphile Caldalkalibacillus thermarum strain TA2.A1 is a member of a separate order of alkaliphilic bacteria closely related to the Bacillales order. Efforts to relate the genomic information of this evolutionary ancient organism to environmental adaptation have been thwarted by the inability to construct a complete genome. The existing draft genome is highly fragmented due to repetitive regions, and gaps...
Delayed timing of successful spawning of an estuarine dependent fish, black bream Acanthopagrus butcheriNARA Subscribed
In this paper, we investigate the period of successful spawning for black bream Acanthopagrus butcheri , an obligate estuarine species in southern Australia that typically spawn in spring and early summer. However, back‐calculated spawning dates of juveniles sampled in Gippsland Lakes, Victoria from February to May 2016 indicated that spawning was concentrated over a short period in the Austral mid‐summer (January), with a sec...
Adult return rates for wild Atlantic salmon Salmo salar smolts captured in a rotary screw trap and tagged with coded wire (CW) tags were compared with a control group, using detections from passive integrated transponder (PIT) antennae systems over 7 years in a small chalk stream in southern England, U.K. Compared with control smolts, capture and CW‐tagging of experimental smolts affected detected return rates only under certa...
Three different [ NiFe ] hydrogenases confer metabolic flexibility in the obligate aerobe M ycobacterium smegmatisNARA Subscribed
Summary M ycobacterium smegmatis is an obligate aerobe that harbours three predicted [ NiFe ] hydrogenases, Hyd 1 ( MSMEG _2262–2263), Hyd 2 ( MSMEG _2720‐2719) and Hyd 3 ( MSMEG _3931‐3928). We show here that these three enzymes differ in their phylogeny, regulation and catalytic activity. Phylogenetic analysis revealed that Hyd 1 groups with hydrogenases that oxidize H 2 produced by metabolic processes, and Hyd 2 is homologo...
Influences of the El Niño Southern Oscillation and the Pacific Decadal Oscillation on the timing of the North American springNARA Subscribed
Detrended, modelled first leaf dates for 856 sites across North America for the period 1900–2008 are used to examine how the El Niño Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) separately and together might influence the timing of spring. Although spring (mean March through April) ENSO and PDO signals are apparent in first leaf dates, the signals are not statistically significant (at a 95% confidence...
Variation in transport explains polymorphism of histidine and urocanate utilization in a natural Pseudomonas populationNARA Subscribed
Summary Phenotypic variation is a fundamental requirement for evolution by natural selection. While evidence of phenotypic variation in natural populations abounds, its genetic basis is rarely understood. Here we report variation in the ability of plant‐colonizing Pseudomonas to utilize histidine, and its derivative, urocanate, as sole sources of carbon and nitrogen. From a population of 164 phyllosphere‐colonizing Pseudomonas...