National Center for Ecological Analysis and Synthesis

Search

Search Results

1801-1810 of 6248
  1. Publication

    The strength of the biodiversity-ecosystem function relationship depends on spatial scale

    Our understanding of the relationship between biodiversity and ecosystem functioning (BEF) applies mainly to fine spatial scales. New research is required if we are to extend this knowledge to broader spatial scales that are relevant for conservation decisions. Here, we use simulations to examine conditions that generate scale dependence of the BEF relationship. We study scale by assessing how the BEF relationship (slope and R2) changes when habitat patches are spatially aggregated.

    Access Product View Project »
  2. Publication

    Factors Affecting Disaster Preparedness, Response, and Recovery Using the Community Capitals Framework

    Disaster research often focuses on how and why communities are affected by a discrete extreme event. We used the community capitals framework to understand how community characteristics influence their preparedness, response to, and recovery from successive or multiple disasters using the 1964 Good Friday Earthquake and the 1989 Exxon Valdez Oil Spill as case studies.

    Access Product View Project »
  3. Publication

    Assessing long-term changes in sex ratios of Pacific herring in Prince William Sound, Alaska

    The Pacific herring (Clupea pallasii) population in Prince William Sound, Alaska suffered a sudden collapse in 1993 and has failed to recover. No consensus has been reached for the causes of the collapse, but hypotheses span a range of ecological, environmental, and anthropogenic drivers. During the course of investigations into changes in PWS herring and salmon population dynamics and fisheries we discovered that the observed percentage of male herring in spawning biomass estimates appeared to increase since the mid-1980s.

    Access Product View Project »
  4. Publication

    A comment on computational biology and connecting the dots.

    Increasingly, big data, coding, and quantitative methods contribute to contemporary ecological and evolutionary endeavours. This is not in opposition to effective ideation nor does it play to the false dichotomy of theory versus data. Computational expeditions with data, models, simulations or any other number of approaches both expand the toolkit of science and promote more structured reasoning.

    Access Product
  5. Publication

    A guide to modelling priorities for managing land-based impacts on coastal ecosystems

    1.Pollution from land‐based run‐off threatens coastal ecosystems and the services they provide, detrimentally affecting the livelihoods of millions people on the world's coasts. Planning for linkages among terrestrial, freshwater and marine ecosystems can help managers mitigate the impacts of land‐use change on water quality and coastal ecosystem services. 2.We examine the approaches used for land‐sea planning, with particular focus on the models currently used to estimate the impacts of land‐use change on water quality and fisheries.

    Access Product View Project »
  6. Publication

    Georeferencing for Research Use (GRU): An integrated geospatial training paradigm for biocollections researchers and data providers

    Georeferencing is the process of aligning a text description of a geographic location with a spatial location based on a geographic coordinate system. Training aids are commonly created around the georeferencing process to disseminate community standards and ideas, guide accurate georeferencing, inform users about new tools, and help users evaluate existing geospatial data.

    Access Product
  7. Publication

    Single species conservation as an umbrella for management of landscape threats

    Single species conservation unites disparate partners for the conservation of one species. However, there are widespread concerns that single species conservation biases conservation efforts towards charismatic species at the expense of others. Here we investigate the extent to which sage grouse (Centrocercus sp.) conservation, the largest public-private conservation effort for a single species in the US, provides protections for other species from localized and landscape-scale threats.

    Access Product View Project »
  8. Publication

    Organic amendment additions to rangelands: A meta analysis of multiple ecosystem outcomes

    Interest in land application of organic amendments--such as biosolids, composts, and manures--is growing due to their potential to increase soil carbon and help mitigate climate change, as well as to support soil health and regenerative agriculture. While organic amendments are predominantly applied to croplands, their application is increasingly proposed on relatively arid rangelands that do not typically receive fertilizers or other inputs, creating unique concerns for outcomes such as native plant diversity and water quality.

    Access Product View Project »
  9. Publication

    Larger gains from improved management over sparing- sharing for tropical forests

    Tropical forests are globally important for both biodiversity conservation and the production of economically valuable wood products. To deliver both simultaneously, two contrasting approaches have been suggested: one partitions forests (sparing); the other integrates both objectives in the same location (sharing). To date, the ‘sparing or sharing’ debate has focused on agricultural landscapes, with scant attention paid to forest management.

    View Project »
  10. Publication

    Evaluating the popularity of R in ecology

    The programming language R is widely used in many fields. We explored the extent of reported R use in the field of ecology using the Web of Science and text mining. We analyzed the frequencies of R packages reported in more than 60,000 peer‐reviewed articles published in 30 ecology journals during a 10‐yr period ending in 2017. The number of studies reported using R as their primary tool in data analysis increased linearly from 11.4% in 2008 to 58.0% in 2017. The top 10 packages reported were lme4, vegan, nlme, ape, MuMIn, MASS, mgcv, ade4, multcomp, and car.

    Access Product