Greater shrub dominance alters breeding habitat and food resources for migratory songbirds in Alaskan arctic tundra

2014 ◽  
Vol 21 (4) ◽  
pp. 1508-1520 ◽  
Author(s):  
Natalie T. Boelman ◽  
Laura Gough ◽  
John Wingfield ◽  
Scott Goetz ◽  
Ashley Asmus ◽  
...  
Keyword(s):  
Arctic Tundra ◽  
Food Resources ◽  
Breeding Habitat ◽  
Migratory Songbirds ◽  
Alaskan Arctic ◽  
Shrub Dominance

scholarly journals Social cues facilitate habitat selection: American redstarts establish breeding territories in response to song

2006 ◽  
Vol 2 (3) ◽  
pp. 337-340 ◽  
Author(s):  
Beth A Hahn ◽  
Emily D Silverman
Keyword(s):  
Habitat Selection ◽  
Local Population ◽  
Breeding Habitat ◽  
Conspecific Attraction ◽  
Adult Males ◽  
Settlement Cues ◽  
Migratory Songbirds ◽  
American Redstarts ◽  
Spring Arrival ◽  
Northern Temperate Forests

For migratory songbirds nesting in northern temperate forests, a short breeding season demands that males rapidly establish territories. Because critical insect and vegetation resources are unavailable during spring arrival, we suggest that conspecifics serve as settlement cues for males new to a local population. To test conspecific attraction, we conducted playback experiments with American redstarts Setophaga ruticilla . Experimental results demonstrate that song playbacks strongly attract conspecifics, recruiting an average of 4.2 additional males per plot; adult males new to our sites increased, while yearling males failed to respond. Yearlings arrived 6 to 10 days later than adults, raising the possibility that yearlings responded to songs of early arriving adults rather than to playbacks. Our work indicates that conspecific attraction is an important mechanism for breeding habitat selection in an established population of a migratory forest songbird, but the effect is moderated by age, reproductive experience and arrival timing.

scholarly journals Forest fragmentation in the temperate zone and its effects on migratory songbirds

1994 ◽  
Vol 4 (2-3) ◽  
pp. 233-249 ◽  
Author(s):  
Scott K. Robinson ◽  
David S. Wilcove
Keyword(s):  
Forest Fragmentation ◽  
Tropical Deforestation ◽  
Temperate Zone ◽  
Breeding Habitat ◽  
Neotropical Migrants ◽  
Population Declines ◽  
Migratory Songbirds

SummaryAlthough much attention has been paid to the impacts of tropical deforestation on populations of Neotropical migrants, fragmentation of breeding habitat may be an equally serious problem for many of these birds. Populations of many migrant songbirds have been declining in recent decades, especially within small woodlots. Censuses from woodlots of different sizes also consistently show that many migrant songbirds are area-sensitive, i.e. they are absent from all but the largest woodlots in a region. In contrast, long-term censuses from large, unfragmented forests show few consistent patterns of decline in Neotropical migrants. Population declines are therefore linked to forest fragmentation because they are most pronounced in small, isolated woodlots.

Analysis of CO2, Temperature, and Moisture Effects on Carbon Storage in Alaskan Arctic Tundra Using a General Ecosystem Model

1997 ◽  
pp. 437-451 ◽  
Author(s):  
Edward B. Rastetter ◽  
Robert B. McKane ◽  
Gaius R. Shaver ◽  
Knute J. Nadelhoffer ◽  
Anne Giblin
Keyword(s):  
Carbon Storage ◽  
Arctic Tundra ◽  
Ecosystem Model ◽  
Moisture Effects ◽  
Alaskan Arctic

scholarly journals Seasonality buffers carbon budget variability across heterogeneous landscapes in Alaskan Arctic Tundra

2021 ◽  
Author(s):  
Josh Hashemi ◽  
Donatella Zona ◽  
Kyle A. Arndt ◽  
Aram Kalhori ◽  
Walter C. Oechel
Keyword(s):  
Carbon Budget ◽  
Arctic Tundra ◽  
Heterogeneous Landscapes ◽  
Alaskan Arctic

The response of Alaskan arctic tundra to experimental warming: differences between short- and long-term responses

2005 ◽  
Vol 11 (4) ◽  
pp. 525-536 ◽  
Author(s):  
Robert D. Hollister ◽  
Patrick J. Webber ◽  
Craig E. Tweedie
Keyword(s):  
Arctic Tundra ◽  
Experimental Warming ◽  
Short And Long Term ◽  
Alaskan Arctic

NDVI as a predictor of canopy arthropod biomass in the Alaskan arctic tundra

2015 ◽  
Vol 25 (3) ◽  
pp. 779-790 ◽  
Author(s):  
Shannan K. Sweet ◽  
Ashley Asmus ◽  
Matthew E. Rich ◽  
John Wingfield ◽  
Laura Gough ◽  
...  
Keyword(s):  
Arctic Tundra ◽  
Alaskan Arctic

Factors determining plant species richness in Alaskan arctic tundra

2003 ◽  
Vol 14 (5) ◽  
pp. 711-720 ◽  
Author(s):  
Marlies E.W. Welle ◽  
Peter J. Vermeulen ◽  
Gaius R. Shaver ◽  
Frank Berendse
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Arctic Tundra ◽  
Plant Species Richness ◽  
Alaskan Arctic

Vegetation and production ecology of Alaskan Arctic Tundra

1980 ◽  
Vol 34 (2) ◽  
pp. 153-153
Author(s):  
K. A. Kershaw
Keyword(s):  
Arctic Tundra ◽  
Production Ecology ◽  
Alaskan Arctic

Vegetation and production ecology of an Alaskan Arctic Tundra

1981 ◽  
Vol 19 (3) ◽  
pp. 236-237
Author(s):  
T.V. Callaghan
Keyword(s):  
Arctic Tundra ◽  
Production Ecology ◽  
Alaskan Arctic
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