16 Works

Data from: Integrating water quality monitoring and diatom community trends to determine landscape-level change in protected lakes.

Joy Ramstack Hobbs, Adam Heathcote, David VanderMeulen & Mark Edlund
These data represent water quality measurements and diatom counts from surface sediments collected from lakes in five National Park units in the Great Lakes Region (USA) between 2005 and 2018. Water quality measurements were made three times annually during the growing season; data are presented as growing season means. Surface sediment samples were collected from the same lakes every 3-5 years over more than a decade to analyze diatom community turnover. Diatom data are presented...

An underwater Serengeti: Seagrass-mediated effects on intake and cultivation grazing behavior of a marine megaherbivore

Alexandra Gulick, Robert Johnson, Laura Palma, Ashley Kusel, Clayton Pollock, Zandy Hillis-Starr, Alan Bolten & Karen Bjorndal
Populations of green turtles (Chelonia mydas), a megaherbivore that consumes seagrasses via cultivation grazing, are recovering worldwide. Information on plant-mediated effects on herbivore foraging behavior is critical to understanding plant-herbivore interactions and sustainability of grazing as ecosystems continue to change. In a Caribbean seagrass ecosystem, we use stationary cameras and benthic surveys to evaluate effects of seagrass morphology and leaf nitrogen content on green turtle grazing behavior. Thalassia testudinum leaf morphology has significant effects on...

Geodatabase domain tables used in Inventory and Monitoring Division boundaries processing (2019)

Data package containing geodatabase domain tables used as controlled vocabularies for 2019 boundary processing and geodatabase integrity.

Data from: Low levels of outdoor recreation alter wildlife behavior

Mira Sytsma, Tania Lewis, Beth Gardner & Laura Prugh
Public interest in nature-based recreation is growing, including visitation to protected areas. However, the level of recreation in these areas that causes detectable changes in wildlife behavior remains unknown, and many studies that investigate wildlife responses to humans do so in high-visitation areas. We used camera traps to investigate the spatial and temporal responses of brown bears (Ursus arctos), black bears (Ursus americanus), moose (Alces alces), and wolves (Canis lupis) to experimentally manipulated levels of...

Data in support of: Mega-disturbances cause rapid decline of mature conifer forest habitat in California

Zachary Steel, Gavin Jones, Brandon Collins, Rebecca Green, Alex Koltunov, Kathryn Purcell, Sarah Sawyer, Michele Slaton, Scott Stephens, Peter Stine & Craig Thompson
Mature forests provide important wildlife habitat and support critical ecosystem functions globally. Within the dry conifer forests of the western United States, past management and fire exclusion have contributed to forest conditions susceptible to increasingly severe wildfire and drought. We evaluated declines in conifer forest cover in the southern Sierra Nevada of California during a decade of record disturbance by using spatially comprehensive forest structure estimates, wildfire perimeter data, and the eDaRT forest disturbance tracking...

NPS Unit Boundary-derived Areas of Analysis, Fall 2021

Dataset containing areas of analysis (AOA) for all NPS units used by the NPS Inventory and Monitoring Division (IMD) and the IRMA Unit database. The file geodatabase includes polygon feature classes of NPS unit boundary-derived AOAs: IMD_BND_AOA_Park_nad_py, IMD_BND_AOA_3km_nad_py, IMD_BND_AOA_30km_nad_py, and a point feature class of NPS park AOAs, IMD_BND_AOA_Park_nad_pt. The file geodatabase also includes multiple feature classes for each AOA type (park, 3km, 30km) for each geographic area within the NPS (Alaska, Continental U.S., Hawaii,...

Data from: Puercosuchus traverorum n. gen. and sp.: a new malerisaurine azendohsaurid (Archosauromorpha: Allokotosauria) from two monodominant bonebeds in the Chinle Formation (Upper Triassic, Norian) of Arizona

Adam Marsh, William Parker, Sterling Nesbitt, Ben Kligman & Michelle Stocker
Non-archosaur archosauromorphs are a paraphyletic group of diapsid reptiles that are important members of global Middle Triassic and Late Triassic continental ecosystems. Included in this group are the azendohsaurids, a clade of allokotosaurians (kuehneosaurids and Azendohsauridae + Trilophosauridae) that retain the plesiomorphic archosauromorph postcranial body plan but have evolved disparate cranial features that converge on later dinosaurian anatomy, including sauropodomorph-like marginal dentition and ceratopsian-like postorbital horns. Here we describe a new malerisaurine azendohsaurid from two...

Northeast USA SeagrassNet Zm percent cover

Holly Plaisted
Sea surface temperature (SST) has increased worldwide since the beginning of the 20th century, a trend which is expected to continue. Changes in SST can have significant impacts on marine biota, including population-level shifts and alterations in community structure and diversity, and changes in the timing of ecosystem events. Seagrasses are a group of foundation species that grow in shallow coastal and estuarine systems, where they provide many ecosystem services. Eelgrass, Zostera marina L., is...

Results of survey for selected parasites in Alaska brown bears (Ursus arctos)

Ellen Haynes, Sarah Coker, Michael Yabsley, Kevin Niedrighaus, Andrew Ramey, Guilherme Verocai, Grant Hilderbrand, Kyle Joly, David Gustine, Buck Mangipane, William Leacock, Anthony Crupi & Christopher Cleveland
To assess the prevalence of endo- and ectoparasites in Alaska brown bears (Ursus arctos), blood and fecal samples were collected during 2013 – 2016 from five locations: Gates of the Arctic National Park and Preserve (GAAR), Katmai National Park (KATM), Lake Clark National Park and Preserve (LACL), Yakutat Forelands (YAK), and Kodiak Island (KOD). Standard fecal centrifugal-flotation was used to screen for gastrointestinal parasites, molecular techniques were used to test blood for the presence of...

Differential seasonal avoidance of anthropogenic features and woody vegetation by Lesser Prairie-chickens

Andrew Lawrence, Matthew Boggie, William Gould, Scott Carleton & Clay Nichols
The influence of seasonal variation in animal behavior and the corresponding response in habitat selection is a critical component of habitat selection analyses. To examine this relationship, we conducted multi-scale analyses of Lesser Prairie-chicken (Tympanuchus pallidicinctus) habitat selection in relation to anthropogenic infrastructure associated with oil and gas development, mesquite, and trees during the spring and summer at home range and lek area scales. We tracked 159 Lesser Prairie-chickens using VHF radiotelemetry or PTT-GPS transmitters...

Redwood Creek Chinook salmon life cycle model code and data

Emily Chen, Nicholas Som, John Deibner-Hanson, David Anderson & Mark Henderson
Understanding the spatial and temporal habitat use of a population is a necessary step for restoration decision making. For Chinook salmon (Oncorhynchus tshawytscha), variation in their migration and habitat use complicate predicting how restoring habitats will impact total recruitment. To evaluate how juvenile life history variation affects a population’s response to potential restoration, we developed a stage-structured model for a Chinook salmon population in a northern California river with a seasonally closed estuary. We modeled...

Data from: To treat or Not to Treat? Experimental Pathogen Exposure, Treatment, and Release of a Threatened Amphibian

Andrea Adams, Jessie Bushell & Robert Grasso
Species reintroductions may mitigate the effects of severe amphibian declines, but chytridiomycosis—the often-deadly amphibian disease caused by the fungal pathogen Batrachochytrium dendrobatidis (Bd)—can hinder these efforts. Exposing amphibians to the pathogen ex-situ may improve disease outcomes post-release. We experimentally inoculated the federally threatened California red-legged frog (Rana draytonii) ex situ, cleared Bd infections, then released them to the wild for monitoring in an area where Bd is present. Ex situ, previously-exposed frogs had lower Bd...

2021 NPS Unit Boundary-derived AOAs - R Markdown

NPS Unit Boundary-derived Areas of Analysis, Fall 2020

Dataset containing areas of analysis (AOA) for all NPS units used by the NPS Inventory and Monitoring Division (IMD) and the IRMA Unit database. The file geodatabase includes polygon feature classes of NPS unit boundary-derived AOAs: IMD_BND_AOA_Park_nad_py, IMD_BND_AOA_3km_nad_py, IMD_BND_AOA_30km_nad_py, and a point feature class of NPS park AOAs, IMD_BND_AOA_Park_nad_pt. The file geodatabase also includes multiple feature classes for each AOA type (park, 3km, 30km) for each geographic area within the NPS (Alaska, Continental U.S., Hawaii,...

Data from: Sex-biased habitat selection by American marten in the Acadian forest

Erin Simons-Legaard, Daniel Harrison, Jeffrey Hepinstall-Cymerman & David Payer
Differences in spatial ecology between the sexes are generally expected for mammalian carnivores because of physiological (e.g., sexual dimorphism) or behavioral (e.g., uniparental care of offspring) differences, but sex is rarely included in studies of occurrence or occupancy. We evaluated differences in landscape-scale occurrence, as a function of habitat amount and configuration, between male and female American martens in the heterogeneous, commercially-managed forests of northern Maine. Our analysis focused on resident adults; individuals that had...

Dataset: Local hydrological conditions influence tree diversity and composition across the Amazon basin

Manuel J. Marca-Zevallos, Gabriel M. Moulatlet, Thaiane R. Sousa, Juliana Schietti, Luiz De Souza Coelho, José Ferreira Ramos, Diogenes De Andrade Lima Filho, Iêda Leão Amaral, Francisca Dionízia De Almeida Matos, Lorena M. Rincón, Juan David Cardenas Revilla, Marcelo Petratti Pansonato, Rogerio Gribel, Edelcilio Marques Barbosa, Ires Paula De Andrade Miranda, Luiz Carlos De Matos Bonates, Juan Ernesto Guevara, Rafael P. Salomão, Leandro Valle Ferreira, Dário Dantas Do Amaral, Nigel C.A. Pitman, Corine Vriesendorp, Tim R. Baker, Roel Brienen, Marcelo De Jesus Veiga Carim … & Flávia R.C. Costa
Tree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well-drained and potentially dry areas. While these conditions may be expected to influence species distribution, the impacts of local hydrological conditions on tree diversity and composition remain...

Registration Year

  • 2022

Resource Types

  • Dataset
  • Software


  • National Park Service
  • University of California, Berkeley
  • University of Georgia
  • United States Fish and Wildlife Service
  • VU University Amsterdam
  • Sao Paulo State University
  • Universidade do Oeste Paulista
  • University of Washington
  • The University of Texas at Austin
  • New Mexico State University