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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/cobi.12513
|2 doi
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|a pubmed24n0827.xml
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|a (DE-627)NLM248310631
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|a (NLM)25900520
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Budy, Phaedra
|e verfasserin
|4 aut
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| 245 |
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|a An occupancy-based quantification of the highly imperiled status of desert fishes of the southwestern United States
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| 264 |
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|c 2015
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 15.04.2016
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|a Date Revised 05.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2015 Society for Conservation Biology.
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|a Desert fishes are some of the most imperiled vertebrates worldwide due to their low economic worth and because they compete with humans for water. An ecological complex of fishes, 2 suckers (Catostomus latipinnis, Catostomus discobolus) and a chub (Gila robusta) (collectively managed as the so-called three species) are endemic to the U.S. Colorado River Basin, are affected by multiple stressors, and have allegedly declined dramatically. We built a series of occupancy models to determine relationships between trends in occupancy, local extinction, and local colonization rates, identify potential limiting factors, and evaluate the suitability of managing the 3 species collectively. For a historical period (1889-2011), top performing models (AICc) included a positive time trend in local extinction probability and a negative trend in local colonization probability. As flood frequency decreased post-development local extinction probability increased. By the end of the time series, 47% (95% CI 34-61) and 15% (95% CI 6-33) of sites remained occupied by the suckers and the chub, respectively, and models with the 2 species of sucker as one group and the chub as the other performed best. For a contemporary period (2001-2011), top performing (based on AICc ) models included peak annual discharge. As peak discharge increased, local extinction probability decreased and local colonization probability increased. For the contemporary period, results of models that split all 3 species into separate groups were similar to results of models that combined the 2 suckers but not the chub. Collectively, these results confirmed that declines in these fishes were strongly associated with water development and that relative to their historic distribution all 3 species have declined dramatically. Further, the chub was distinct in that it declined the most dramatically and therefore may need to be managed separately. Our modeling approach may be useful in other situations in which targeted data are sparse and conservation status and best management approach for multiple species are uncertain
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|a Journal Article
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|a colonización
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| 650 |
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4 |
|a colonization
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| 650 |
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4 |
|a conservation planning
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| 650 |
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4 |
|a datos históricos
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| 650 |
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4 |
|a escala regional
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| 650 |
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4 |
|a extinción
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| 650 |
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4 |
|a extinction
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| 650 |
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4 |
|a historical data
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| 650 |
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4 |
|a manejo de especies múltiples
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| 650 |
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4 |
|a modelado de ocupación
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| 650 |
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4 |
|a multi-species management
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| 650 |
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4 |
|a occupancy modeling
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| 650 |
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4 |
|a planeación de la conservación
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| 650 |
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4 |
|a regional scale
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| 700 |
1 |
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|a Conner, Mary M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Salant, Nira L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Macfarlane, William W
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Conservation biology : the journal of the Society for Conservation Biology
|d 1999
|g 29(2015), 4 vom: 01. Aug., Seite 1142-1152
|w (DE-627)NLM098176803
|x 1523-1739
|7 nnns
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| 773 |
1 |
8 |
|g volume:29
|g year:2015
|g number:4
|g day:01
|g month:08
|g pages:1142-1152
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/cobi.12513
|3 Volltext
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