26.11.2012 Views

Review and download Chapter 3 - Golden-winged Warbler Working ...

Review and download Chapter 3 - Golden-winged Warbler Working ...

Review and download Chapter 3 - Golden-winged Warbler Working ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Southern Appalachian-Cumberl<strong>and</strong> Subregion (Focal Areas A12–A14; Figures 3–35 <strong>and</strong> 3–36;<br />

Table 3–8)<br />

General Description<br />

This subregion supports approximately 3% of the<br />

region’s (<strong>and</strong> 0.1% of the world’s) <strong>Golden</strong>-<strong>winged</strong><br />

<strong>Warbler</strong>s. The areas are characterized by small<br />

but often high-density local populations primarily<br />

on reclaimed surface mine sites. Significant<br />

management opportunities exist with forest<br />

Macro L<strong>and</strong>scape Context (within 1.5 mi (2.5 km) of management site)<br />

<strong>Golden</strong>-<strong>winged</strong> <strong>Warbler</strong>s are generally associated with l<strong>and</strong>scapes containing:<br />

3–57<br />

management but require additional post-harvest<br />

treatments of prescribed burning <strong>and</strong> use of<br />

herbicides to control woody growth. Major<br />

threats in these areas are succession <strong>and</strong> the remining<br />

of previously-mined <strong>and</strong> ab<strong>and</strong>oned<br />

surface mines.<br />

• Elevations ranging from 1975–3000 ft (600–800 m) but habitat management to exclude Blue<strong>winged</strong><br />

<strong>Warbler</strong>s should be above 2000 ft (620 m).<br />

• A high proportion of contiguous forest (100% forest cover) which is unique to the southern<br />

Appalachians. In contrast, around 25% of <strong>Golden</strong>-<strong>winged</strong> <strong>Warbler</strong>s are found in l<strong>and</strong>scapes<br />

where herbaceous cover is between 70–90%.<br />

Micro L<strong>and</strong>scape Context (within 0.15 mi (0.25 km) of management site)<br />

Sites where <strong>Golden</strong>-<strong>winged</strong> <strong>Warbler</strong>s are found generally:<br />

• Contain the following primary l<strong>and</strong> cover types: deciduous forest (48%), grassl<strong>and</strong>-herbaceous<br />

cover (14%), <strong>and</strong> barren cover (8%). Barren cover is uniquely important in this subregion <strong>and</strong><br />

may include glacial debris, surface mines, <strong>and</strong> gravel pits. Also the absence of wetl<strong>and</strong> cover<br />

types is a notable difference for <strong>Golden</strong>-<strong>winged</strong> <strong>Warbler</strong> sites in this subregion as compared to<br />

elsewhere in the range.<br />

Table 3–8. Population <strong>and</strong> habitat goals for focal areas in the Southern Appalachian-Cumberl<strong>and</strong> subregion.*<br />

Focal<br />

Area<br />

Map ID Focal Area Name<br />

Estimated<br />

Population<br />

for 2010<br />

(individuals)<br />

Population<br />

Goal for<br />

2050<br />

(individuals)<br />

Estimated<br />

Breeding<br />

Habitat for 2010<br />

in acres (ha)<br />

Breeding<br />

Habitat Goal<br />

for 2050 in<br />

acres (ha)<br />

A12 Virginia Clinch Valley 100 200 500 (200) 1000 (400)<br />

A13<br />

Black <strong>and</strong> Little Black<br />

Mountains<br />

120 240 600 (240) 1200 (490)<br />

A14 Cumberl<strong>and</strong> Mountains 370 740 1850 (750) 3700 (1500)<br />

*Population estimates are based on expert knowledge <strong>and</strong> <strong>Golden</strong>-<strong>winged</strong> <strong>Warbler</strong> Atlas Project data.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!