8 Works

Sex identification PCR-RFLP assay tested in eight species of Sebastes rockfish

Felix Vaux, Hannah M. Aycock, Sandra Bohn, Leif K. Rasmuson & Kathleen G. O'Malley
Files for 'Sex identification PCR-RFLP assay tested in eight species of Sebastes rockfish'. Files include a sampling spreadsheet for eight species of Sebastes rockfish, and a .fasta file of DNA sequences for a male and female from each species for the Sch.182255-210250 locus.

Data from: Sex matters: Otolith shape and genomic variation in deacon rockfish (Sebastes diaconus)

Felix Vaux, Leif K. Rasmuson, Lisa A. Kautzi, Polly S. Rankin, Matthew T.O. Blume, Kelly A. Lawrence, Sandra Bohn & Kathleen G. O’Malley
Little is known about intraspecific variation within the deacon rockfish (Sebastes diaconus), a recently described species found in the northeast Pacific Ocean. We investigated population structure among fish sampled from two nearshore reefs (Siletz Reef and Seal Rock) and one offshore site (Stonewall Bank) within a <50 km2 area off the Oregon coast. Fish from the three sample sites exhibited small but statistically significant differences based on genetic variation at >15,000 neutral loci, whether analyzed...

Data from: Mammal communities are larger and more diverse in moderately developed areas

Arielle Waldstein Parsons, Tavis Forrester, Megan C. Baker-Whatton, William J. McShea, Christopher T. Rota, Stephanie G. Schuttler, Joshua J. Millspaugh, Roland Kays, Stephanie G Schuttler, William J McShea, Christopher T Rota & Joshua J Millspaugh
Developed areas are thought to have low species diversity, low animal abundance, few native predators, and thus low resilience and ecological function. Working with citizen scientist volunteers to survey mammals at 1427 sites across two development gradients (wild-rural-exurban-suburban-urban) and four plot types (large forests, small forest fragments, open areas and residential yards) in the eastern US, we show that developed areas actually had significantly higher or statistically similar mammalian occupancy, relative abundance, richness and diversity...

Data from: Age-specific infectious period shapes dynamics of pneumonia in bighorn sheep

Raina K. Plowright, Kezia R. Manlove, Thomas E. Besser, David J. Páez, Kimberly R. Andrews, Patrick E. Matthews, Lisette P. Waits, Peter J. Hudson & E. Frances Cassirer
Superspreading, the phenomenon where a small proportion of individuals contribute disproportionately to new infections, has profound effects on disease dynamics. Superspreading can arise through variation in contacts, infectiousness or infectious periods. The latter has received little attention, yet it drives the dynamics of many diseases of critical public health, livestock health and conservation concern. Here, we present rare evidence of variation in infectious periods underlying a superspreading phenomenon in a free-ranging wildlife system. We detected...

Data from: Geomagnetic field influences upward movement of young Chinook salmon emerging from nests

Nathan F. Putman, Michelle M. Scanlan, Amanda M. Pollock, Joseph P. O'Neil, Ryan B. Couture, Joseph S. Stoner, Thomas P. Quinn, Kenneth J. Lohmann, David L.G. Noakes & David L. G. Noakes
Organisms use a variety of environmental cues to orient their movements in three-dimensional space. Here, we show that the upward movement of young Chinook salmon (Oncorhynchus tshawytscha) emerging from gravel nests is influenced by the geomagnetic field. Fish in the ambient geomagnetic field travelled farther upwards through substrate than did fish tested in a field with the vertical component inverted. This suggests that the magnetic field is one of several factors that influences emergence from...

Data from: Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring

Patricia Reglero, Aurelio Ortega, Rosa Balbín, Francisco Javier Abascal, Antonio Medina, Edurne Blanco, Fernando De La Gándara, Diego Alvarez-Berastegui, Manuel Hidalgo, Leif Rasmuson, Francisco Alemany & Øyvind Fiksen
Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms’ annual routines. In this study we analyze how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology....

Data from: Forest cover mediates genetic connectivity of northwestern cougars

Matthew J. Warren, David O. Wallin, Richard A. Beausoleil & Kenneth I. Warheit
Population structure, connectivity, and dispersal success of individuals can be challenging to demonstrate for solitary carnivores with low population densities. Though the cougar (Puma concolor) is widely distributed throughout North America and is capable of dispersing long distances, populations can be geographically structured and genetic isolation has been documented in some small populations. We described genetic structure and explored the relationship between landscape resistance and genetic variation in cougars in Washington and southern British Columbia...

Data from: Density-dependent habitat selection of spawning Chinook salmon: broad scale evidence and implications

Matthew R. Falcy
1. An extensive body of theory suggests that density-dependent habitat selection drives many fundamental ecological processes. The ideal free distribution and the ideal despotic distribution make contrasting predictions about the effect of total population size on relative abundances among habitats. Empirical assessment of these habitat selection models is uncommon because data must be collected over large temporal and spatial scales. 2. I ask whether fluctuation in Chinook salmon (Oncorhynchus tshawytscha) spawner population size through time...

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