Male Northern Goshawk Home Ranges in the Great Basin of South-central Idaho

2007 ◽  
Vol 41 (2) ◽  
pp. 150-155 ◽  
Author(s):  
Kristin Hasselblad ◽  
Marc Bechard
Keyword(s):  
Great Basin ◽  
Home Ranges ◽  
Northern Goshawk ◽  
South Central ◽  
Central Idaho

scholarly journals Local Weather Explains Annual Variation In Northern Goshawk Reproduction In the Northern Great Basin, USA

2021 ◽  
Author(s):  
Allyson B. Bangerter ◽  
Eliana R. Heiser ◽  
Jay D. Carlisle ◽  
Robert A. Miller
Keyword(s):  
Climate Change ◽  
Great Basin ◽  
Prey Availability ◽  
Northern Goshawk ◽  
South Central ◽  
Mean Temperature ◽  
Northern Utah ◽  
Using Data ◽  
Projected Changes

ABSTRACT Weather is thought to influence raptor reproduction through effects on prey availability, condition of adults, and survival of nests and young; however, there are few long-term studies of the effects of weather on raptor reproduction. We investigated the effects of weather on Northern Goshawk (Accipiter gentilis; henceforth goshawk) breeding rate, productivity, and fledging date in south-central Idaho and northern Utah, USA. Using data from 42 territories where we found evidence of breeding attempts in ≥1 yr from 2011–2019, we analyzed breeding rates using 315 territory–season combinations, analyzed productivity for 134 breeding attempts, and analyzed fledging date for 118 breeding attempts. We examined 35 predictor variables from four categories: precipitation, temperature, wind, and snowpack. Of the variables we evaluated, April precipitation, previous year's April–July precipitation, April–May mean temperature, and March–May mean temperature were related to measures of goshawk reproduction. Greater April–July precipitation in the previous year and lower April precipitation in the current year were associated with higher breeding rates. Years with warmer average April–May temperatures were associated with increased goshawk productivity. Years with greater April–July precipitation during the previous year and lower mean March–May temperatures were associated with later fledging dates. Based on these relationships, we considered projected changes in weather in the northern Great Basin over the next 50 yr as a result of climate change (without directly accounting for habitat changes caused by climate change), and predicted that climate change will: (a) have no significant effect on goshawk breeding rate, (b) have a positive effect on goshawk productivity, and (c) cause a shift toward earlier goshawk breeding. Our results indicate that weather is significantly related to goshawk reproduction in the northern Great Basin, and we suggest that the relationship between raptor breeding and weather be further investigated to enable higher resolution predictions of how changes in the climate may influence their populations, particularly changes that may not have been captured by our study.

Selected hydrologic data, Camas Prairie, south-central Idaho

1978 ◽  
Author(s):  
H.W. Young ◽  
R.L. Backsen ◽  
K.S. Kenyon
Keyword(s):  
South Central ◽  
Hydrologic Data ◽  
Central Idaho

EVALUATION OF THE GEOTHERMAL POTENTIAL OF THE CAMAS PRAIRIE, SOUTH-CENTRAL IDAHO

2020 ◽  
Author(s):  
Connor J. Smith ◽  
◽  
Thomas E. Lachmar ◽  
John W. Shervais ◽  
James P. Evans ◽  
...  
Keyword(s):  
South Central ◽  
Geothermal Potential ◽  
Central Idaho

scholarly journals Extension Staffing Models to Serve 4-H Clientele in Changing Times

2010 ◽  
Vol 5 (1) ◽  
pp. 105-111
Author(s):  
Donna R. Gillespie ◽  
Cindy A. Kinder
Keyword(s):  
County Level ◽  
Budget Cuts ◽  
The Past ◽  
South Central ◽  
Professional Network ◽  
Staffing Patterns ◽  
Changing Times ◽  
University Of Idaho ◽  
Central Idaho

In response to budget cuts in 2002, 4-H staffing models were restructured. The response by University of Idaho Extension was intended to continue meeting the needs of Idaho’s citizens with fewer UI Extension faculty. This staffing reorganization led to the formation of the District III 4-H Team who united to bring stronger 4-H programs to south central Idaho and expand programs to underserved audiences. Information from surveys and interviews over the past seven years reflects the effectiveness, challenges and successes of the District III 4-H Team. In Making the Best Better: 4-H Staffing Patterns and Trends in the Largest Professional Network in the Nation (2007), author Kirk A. Astroth notes a nationwide change in 4-H leadership at the county level from 4-H faculty to program assistants or coordinators. The information gathered in our research may help other states determine staffing models to meet the needs of clientele in these changing times.

scholarly journals Space Use, Migratory Connectivity, and Population Segregation Among Willets Breeding in Thewestern Great Basin

The Condor ◽  
2002 ◽  
Vol 104 (3) ◽  
pp. 620-630 ◽  
Author(s):  
Susan M. Haig ◽  
Lewis W. Oring ◽  
Peter M. Sanzenbacher ◽  
Oriane W. Taft
Keyword(s):  
San Francisco ◽  
Great Basin ◽  
Space Use ◽  
Daily Basis ◽  
Breeding Birds ◽  
Home Ranges ◽  
Migratory Connectivity ◽  
Breeding Sites ◽  
Bay Area ◽  
Para Determinar

Abstract Western Willets (Catoptrophorus semipalmatus inornatus) were banded (n = 146 breeding adults and chicks) and radio-marked (n = 68 adults) at three western Great Basin wetland complexes to determine inter- and intraseasonal space use and movement patterns (primarily in 1998 and 1999). Birds were then tracked to overwintering sites where migratory connectivity and local movements were documented. Willets arrived synchronously at breeding sites during mid-April and spent less than 12 weeks in the Great Basin. There were no movements to other sites in the Great Basin during the breeding or postbreeding season. However, most breeding birds moved locally on a daily basis from upland nest sites to wetland foraging sites. The mean distance breeding birds were detected from nests did not differ between sexes or between members of a pair, although these distances were greater among postbreeding than breeding birds. Home-range estimates did not differ significantly between paired males and females during breeding or postbreeding. However, female home ranges were larger following breeding than during breeding. Shortly after chicks fledged, adult Willets left the Great Basin for locations primarily at coastal and estuarine sites in the San Francisco Bay area. Limited data revealed little among-site movements once Willets arrived at the coast, and birds appeared to be site faithful in subsequent winters. Winter sites of western Great Basin Willets differed from those used by birds from other areas in the subspecies' range, suggesting another subspecies or distinct population segment may exist. This study illustrates the importance of understanding movements and space use throughout the annual cycle in conservation planning. Uso del Espacio, Conectividad Migratoria y Segregación Poblacional entre Catoptrophorus semipalmatus que se Reproducen en el Great Basin Occidental Resumen. Un total de 146 individuos reproductivos y polluelos de Catoptrophorus semipalmatus inornatus fueron anillados y 68 marcados con radio transmisores en tres complejos de humedales del Great Basin occidental para determinar patrones inter- e intraestacionales en el uso del espacio y los movimientos, principalmente en 1998 y 1999. Las aves fueron seguidas mediante radio telemetría hasta sus áreas de invernada, donde se documentaron la conectividad migratoria y los movimientos locales. Las aves arribaron sincrónicamente a sus sitios reproductivos a mediados de abril, donde permanecieron menos de 12 semanas. No hubo movimientos hacia otros sitios del Great Basin durante la estación reproductiva o post-reproductiva. Sin embargo, muchas aves se movieron a diario localmente desde sitios de anidación en zonas altas hasta sitios de forrajeo en humedales. La distancia media entre las aves y sus nidos no difirió entre sexos ni entre miembros de una pareja, aunque estas distancias fueron mayores entre aves post-reproductivas que entre aves que estaban reproduciéndose. Los rangos de hogar no difirieron significativamente entre machos y hembras de una misma pareja durante o después de la reproducción, pero los de las hembras fueron mayores luego del período reproductivo. Poco después de que los polluelos emplumaron, los adultos abandonaron el Great Basin principalmente hacia sitios costeros o estuarinos de la Bahía de San Francisco. Una vez que las aves llegaron a la costa, se movieron poco entre sitios, y los individuos parecieron ser fieles a sus sitios en inviernos subsiguientes. Los sitios de invierno de C. s. inornatus en el Great Basin occidental difirieron de aquellos usados por aves de otras áreas del rango de esta subespecie, sugiriendo que otra subespecie o una sección poblacional distinta podría existir. Este estudio ilustra la importancia de entender los movimientos y el uso del espacio a través del ciclo anual para establecer planes de conservación.

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