Summary This study coupled a landscape‐scale metagenomic survey of denitrification gene abundance in soils with in situ denitrification measurements to show how environmental factors shape distinct denitrification communities that exhibit varying denitrification activity. Across a hydrologic gradient, the distribution of total denitrification genes ( nap/nar + nirK/nirS + cNor/qNor + nosZ) inferred from metagenomic read abunda...

Summary Model denitrifiers convert to N 2 , but it appears that a significant fraction of natural populations are truncated, conducting only one or two steps of the pathway. To better understand the diversity of partial denitrifiers in soil and whether discrepancies arise between the presence of known N‐oxide reductase genes and phenotypic features, bacteria able to reduce to were isolated from soil, N‐oxide gas products were...

Aim The American pika ( Ochotona princeps ) appears to have experienced climate‐mediated upslope range contraction in the Great Basin of North America, but this result has not yet been extended to other portions of the pika's range. Our goals were: first, to determine the environmental parameters that most influence current pika distribution within California; second, to infer whether these constraints explain extirpations tha...

The health, postrelease movements, and behavior of mass stranded Atlantic white‐sided dolphins ( Lagenorhynchus acutus ) and short‐beaked common dolphins ( Delphinus delphis ) from Cape Cod, Massachusetts, were evaluated. Health was assessed through physical examination and blood analysis. Eleven dolphins (eight white‐sided dolphins and three common dolphins) were relocated, outfitted with satellite transmitters, and released...

68Stakeholders' questions about subtropical and tropical forests can be as diverse and unique as the forests themselves. Obtaining the information needed to begin answering these questions requires innovation and adaptation of existing forest mensuration and inventory techniques that were developed primarily for use in temperate and boreal forests with a strong forest industry presence. Five cycles of forest inventory and moni...