Services Directory - ACJV_predicted_occupancy_all_regions_SALS

ACJV_predicted_occupancy_all_regions_SALS_HL2 (Map Service)

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Current Version: 10.81

Service Description:

These data estimate and predict the occupancy for the Saltmarsh Sparrow (Ammospiza caudacuta) using a fine-scale, raster-based vegetation data layer (Correll et al. 2019) using the existing Saltmarsh Habitat and Avian Research Program (SHARP; 2011-2014) point count database spanning tidal marshes from Maine to Virginia. These data were produced along with 5 other complementary layers to 1) estimate Saltmarsh and Nelson’s Sparrow occupancy and density across suitable habitat in USFWS Region 5, 2) predict sparrow occupancy and density using these established relationships in unsurveyed areas, and 3) provide an estimate of unknown Sharp-tailed Sparrows within the established hybrid zone for these two species. These data can be used to examine predicted hotspots for Saltmarsh and Nelson’s Sparrow occupancy and density to inform local, state, and regional planning efforts involving these species. A full description of methods, results, and accuracy assessment can be found here.

We strongly recommend use of the numeric values presented in these layers only as an index to identify hotspots, and not for extrapolation of population estimates or trends. For population estimates for Saltmarsh and Nelson’s sparrows please reference Wiest et al. 2016 and 2019. For trend estimates please reference Correll et al. 2017.

Map Name: SALSmodels

Legend

All Layers and Tables

Layers:

predicted_occupancy_all_regions_SALS(0)

Tables:

Description:

Copyright Text: Layers were created by the University of Delaware and SHARP. Earlier drafts of these data were reviewed by USFWS through the Atlantic Coast Joint Venture. Funding for this effort was provided by USFWS Coastal and Migratory Bird Programs.

Spatial Reference:
102100

Single Fused Map Cache: true

Capabilities: Map,TilesOnly,Tilemap

Tile Info:

Height: 256
Width: 256
DPI: 96
Levels of Detail: (# Levels: 24)

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Level ID: 23 [Start Tile, End Tile]

Format: Mixed
Compression Quality: 75
Origin:
Spatial Reference:
102100

Initial Extent:

Full Extent:

Min Scale: 9244648.868618
Max Scale: 2256.994353

Min LOD: 6
Max LOD: 18

Units: esriMeters

Supported Image Format Types: Mixed

Export Tiles Allowed: true
Max Export Tiles Count: 100000

Document Info:

Title: ACJV Predicted occupancy - Saltmarsh Sparrow (Ammospiza caudacuta)
Author: kirsten_luke@fws.gov_fws
Comments:
Subject: Layers were created by the University of Delaware and SHARP. Earlier drafts of these data were reviewed by USFWS through the Atlantic Coast Joint Venture. Funding for this effort was provided by USFWS Coastal and Migratory Bird Programs.
Category:
Keywords: UDEL, SALS, ACJV, FWS, U.S. Fish and Wildlife Service, Saltmarsh Sparrow