Atlantic_Seabirds_Naive_Species_Effort_adjusted_Counts_Seasonal-WMS
This is the species data layer showing seasonal naive species occurrence. ?Naive? means that these species counts should not be taken as a direct index of relative abundance, since absence of detections does not imply the species does not occur there. Counts (detections) were adjusted using the five-minute equivalent effort units; however due to biases in methods, these maps combining multiple surveys should be used as ?presence? maps that strongly reflect survey effort. The data encompass all years but is split out by season for each species; only one species and one season are shown at a time. This layer displays occurrence for Northern Gannet, Greater Shearwater, Long-tailed Duck, and Dovekie for the winter, spring, summer, and fall seasons.
Simple
Identification info
- Date ( Revision )
- 2016-09-13T18:20:50Z
- Date ( Publication )
- 2013-01-24T20:55:37Z
Point of contact
USGS Patuxent Wildlife Research Center
-
USGS Patuxent Wildlife Research Center 12100 Beech Forest Road Laurel, MD 20708-4038
,
Laurel
,
20192
,
United States of America
301-497-5596
- Keywords ( Theme )
-
- Natural Resources Regulatory Monitoring Modeling Outer Continental Shelf Coast Biology Marine Atlantic Offshore Seabirds
- Service Type
- OGC:WMS
- Service Version
- 1.3.0
- Fees
- None
N
S
E
W
))
- Use limitation
- At this time, data use must take into account use constraints (data limitations) listed here, and cite the Atlantic Offshore Seabird Dataset Catalog. USGS, 2011. Use_Constraints: Seabirds provide unique challenges even when using estimation techniques to sample populations (e.g., Tasker et al. 1984, Spear et al. 1992). To date, there has been little consistency among survey designs. Surveys have varied by the type of vessel from which they are conducted (ship, plane), the methodology that counts are made, the width of the area being counted, and equipment used, among many other differences. Under such circumstances, comparing results and making inferences can be difficult. Because these estimates of effort-adjusted counts do not account for detection probability, they are likely biased by factors that affect this parameter such as weather, survey method, observer, or other environmental variables (MacKenzie et al. 2006).
Contains Operations
- Operation Name
- ASDD nodes zserver
- Connect Point
-
ASDD Z3950 zserver
(
z3950
)
ASDD Z3950 zserver
- Operates On
-
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- OnLine resource
-
Service in Spatineo Directory
(
WWW:LINK-1.0-http--link
)
Service in Spatineo Directory
- File identifier
- 5e0d6b78-e6fd-4880-8e58-e3f7ef27fcc5 XML
- Character set
- UTF8
- Hierarchy level
- Service
- Date stamp
- 2021-02-28T01:06:18Z
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Overviews
Spatial extent
N
S
E
W
))
Provided by

Associated resources
Not available