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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Ecoregions of the Conterminous United States: Evolution of a Hierarchical Spatial Framework
|
|---|---|
| Published in |
Environmental Management, September 2014
|
| DOI | 10.1007/s00267-014-0364-1 |
| Pubmed ID | |
| Authors |
James M. Omernik, Glenn E. Griffith |
| Abstract |
A map of ecological regions of the conterminous United States, first published in 1987, has been greatly refined and expanded into a hierarchical spatial framework in response to user needs, particularly by state resource management agencies. In collaboration with scientists and resource managers from numerous agencies and institutions in the United States, Mexico, and Canada, the framework has been expanded to cover North America, and the original ecoregions (now termed Level III) have been refined, subdivided, and aggregated to identify coarser as well as more detailed spatial units. The most generalized units (Level I) define 10 ecoregions in the conterminous U.S., while the finest-scale units (Level IV) identify 967 ecoregions. In this paper, we explain the logic underpinning the approach, discuss the evolution of the regional mapping process, and provide examples of how the ecoregions were distinguished at each hierarchical level. The variety of applications of the ecoregion framework illustrates its utility in resource assessment and management. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 351 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 5 | 1% |
| Poland | 2 | <1% |
| Indonesia | 1 | <1% |
| France | 1 | <1% |
| Unknown | 342 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 71 | 20% |
| Student > Master | 71 | 20% |
| Researcher | 63 | 18% |
| Student > Bachelor | 17 | 5% |
| Student > Doctoral Student | 16 | 5% |
| Other | 50 | 14% |
| Unknown | 63 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 99 | 28% |
| Agricultural and Biological Sciences | 80 | 23% |
| Earth and Planetary Sciences | 27 | 8% |
| Engineering | 20 | 6% |
| Social Sciences | 6 | 2% |
| Other | 24 | 7% |
| Unknown | 95 | 27% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 November 2019.
All research outputs
#7,047,316
of 25,373,627 outputs
Outputs from Environmental Management
#595
of 1,914 outputs
Outputs of similar age
#64,693
of 246,371 outputs
Outputs of similar age from Environmental Management
#10
of 29 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. This one has received more attention than most of these and is in the 71st percentile.
So far Altmetric has tracked 1,914 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.0. This one has gotten more attention than average, scoring higher than 68% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 246,371 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.
We're also able to compare this research output to 29 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 62% of its contemporaries.