Range Expansion of Barred Owls, Part II: Facilitating Ecological Changes

@inproceedings{Livezey2009RangeEO,
  title={Range Expansion of Barred Owls, Part II: Facilitating Ecological Changes},
  author={Kent B. Livezey},
  year={2009}
}
Abstract In Part I (Livezey, 2009), I presented the chronology and distribution of the range expansion of Barred Owls (Strix varia) from the late 1800s to the present. Here I explore what had prevented Barred Owls from expanding their range westward during recent millennia and what allowed them to do so during the past century. Using strength-of-evidence analysis, I evaluate the plausibility of the five ecological or behavioral changes proposed in the literature to have facilitated the range… Expand
Range Expansion of Barred Owls, Part I: Chronology and Distribution
TLDR
More than 12,500 records of Barred Owls in their expanded range from the earliest records to the present are mapped, the species' distribution is drawn and the general timing and flow of the range expansion is inferred. Expand
Killing Barred Owls to Help Spotted Owls II: Implications for Many Other Range-Expanding Species
TLDR
Information is presented concerning how frequently range expansions of North American birds and other factors may precipitate similar management issues in the near future, probability that range expansions will continue, increases in number of listed species, and further documentation of negative effects between species are presented. Expand
Potential trophic cascades triggered by the barred owl range expansion
TLDR
It is posited that shared prey species and those uniquely consumed by barred owls, along with other competing native predators, may experience changes in behavior, abundance, and distribution as a result of increased rates of predation by rapidly expanding populations of barred Owls. Expand
The Journal of Wildlife Management
Barred owls (Strix varia) are forest‐dwelling owls, native to eastern North America, with populations that expanded westward into the range of the spotted owl (Strix occidentalis). Barred owls exertExpand
Killing Barred Owls to Help Spotted Owls I: A Global Perspective
TLDR
A precedent-setting removal study in which as many as 2150 to 4650 Barred Owls would be killed would result in the death of 36 times more raptors than in all other conservation-based projects combined in the United States and its territories, and 84 times more Raptor deaths than in the largest ongoing effort worldwide. Expand
Neighborhood and habitat effects on vital rates: expansion of the Barred Owl in the Oregon coast ranges.
TLDR
This paper modify dynamic occupancy models developed for detection-nondetection data to allow for the dependence of local vital rates on neighborhood occupancy, and concludes that all covariates used to model detection probability lead to improved AIC, that regional occupancy influences colonization and extinction rates, and that habitat plays an important role in determining extinction and colonization rates. Expand
Habitat Features and Behavioral Plasticity Promote Barred Owl Presence in Developed Landscapes
As urbanization continues to transform landscapes, it is imperative to find ways to conserve biodiversity within fragmented habitats. Forest interior dwelling birds are particularly vulnerable toExpand
The past and future roles of competition and habitat in the range-wide occupancy dynamics of Northern Spotted Owls.
TLDR
This study suggests how intensive management actions (removal of a competitor) with rapid results can complement a slower management action (i.e., promoting forest succession) in order to promote the persistence of northern spotted owl populations. Expand
Key habitat features facilitate the presence of Barred Owls in developed landscapes
TLDR
This research implies that developed landscapes containing mature urban trees can support breeding populations of Barred Owls, and modeled Barred Owl occupancy probability along a development gradient in the Piedmont region of the southeastern United States. Expand
Review of the effects of barred owls on spotted owls
Barred owls (Strix varia) are forest‐dwelling owls, native to eastern North America, with populations that expanded westward into the range of the spotted owl (Strix occidentalis). Barred owls exertExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 207 REFERENCES
Range Expansion of Barred Owls, Part I: Chronology and Distribution
TLDR
More than 12,500 records of Barred Owls in their expanded range from the earliest records to the present are mapped, the species' distribution is drawn and the general timing and flow of the range expansion is inferred. Expand
DISTRIBUTIONAL DYNAMICS OF INVASION AND HYBRIDIZATION BY STRIX SPP. IN WESTERN NORTH AMERICA
Understanding how hybridization may affect extant and emerging taxa requires knowledge of the origins, viability, and breeding tendencies of hybrid individuals. We examined the geographic andExpand
THE BARRED OWL (STRIX VARIA) INVASION IN CALIFORNIA
We estimated the range expansion of Barred Owls (Strix varia) in California and the potential negative effects this species may have on Spotted Owls (Strix occidentalis). Barred Owl range expansionExpand
BARRED OWL HABITAT AND PREY: A REVIEW AND SYNTHESIS OF THE LITERATURE
ABSTRACT Barred Owls (Strix varia) historically inhabited the forests of eastern North America. During the last century, they expanded their range to include forests throughout the southern provincesExpand
The Barred Owl, Strix varia in Alberta: Distribution and Status
TLDR
There is no evidence that Barred Owls have expanded their range in Alberta in the last 100 years; rather, they have maintained their distribution. Expand
An environmental narrative of Inland Northwest United States forests, 1800–2000
Fire was arguably the most important forest and rangeland disturbance process in the Inland Northwest United States for millennia. Prior to the Lewis and Clark expedition, fire regimes ranged fromExpand
How many bison originally populated western rangelands
In 1871, Colonel R. 1. Dodge traveled along the Arkansas River through an immense herd of American bison (Bison bison). Dodge estimated that the herd was at least 25 miles across and after consultingExpand
Studying invasion: have we missed the boat?
TLDR
It is argued that initial dispersal is the best stage during which to direct management efforts, and has direct relevance for fundamental ecological questions regarding community assembly and metacommunity dynamics. Expand
Rise of the grassland biome, central North America
Fossil floras and mammalian faunas from the Great Plains indicate that as aridity increased during the Miocene and Pliocene, forests and woodlands were confined gradually to moister valleys asExpand
Woodland Expansions in the Platte River, Nebraska: Patterns and Causes
TLDR
The research included pre—settlement vegetation reconstruction based on the General Land Office survey notes, a statistical comparison between historic rates of woodland expansion from aerial photographs and environmental variables, and a field study of seedling demography to isolate the factors controlling recruitment and survival in the modern river. Expand
...
1
2
3
4
5
...