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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/cobi.13194
|2 doi
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|a pubmed24n0955.xml
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|a (NLM)30022531
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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 Vanthomme, Hadrien P A
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Empirical selection between least-cost and current-flow designs for establishing wildlife corridors in Gabon
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| 264 |
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|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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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 18.11.2019
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|a Date Revised 18.11.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Published 2018. This article is a U.S. Government work and is in the public domain in the USA.
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|a Corridors are intended to increase species survival by abating landscape fragmentation resulting from the conversion of natural habitats into human-dominated matrices. Conservation scientists often rely on 1 type of corridor model, typically the least-cost model or current-flow model, to construct a linkage design, and their choice is not usually based on theory or empirical evidence. We developed a method to empirically confirm whether corridors produced by these 2 models are used by target species under current landscape conditions. We applied this method in the Gamba landscape between 2 national parks in southwestern Gabon. We collected signs of presence of African forest elephant (Loxodonta cyclotis), forest buffalo (Syncerus caffer nanus), and 2 apes, western lowland gorilla (Gorilla gorilla gorilla) and central chimpanzee (Pan troglodytes troglodytes), on transects. We used patch-occupancy models to identify least-cost and current-flow corridors for these 4 species. On average, 28.7% of current-flow corridors overlapped with least-cost corridors, confirming that the choice of corridor model can affect the location of the resulting linkage design. We validated these corridors by monitoring signs and examining camera detections on new transects within and outside modeled corridors. Current-flow corridors performed better than least-cost corridors for elephants, whereas the opposite was found for buffalo and apes. Locations of the highest priority corridors for the 3 taxa did not overlap, and only 18.3% of their combined surface was common among 2 species. We used centrality metrics to calculate the average contribution of corridor pixels to landscape connectivity and derived an index that can be used to prioritize corridors. As a result, we recommend protecting at least 17.4% of the land surface area around Gamba town to preserve the preferred travel routes of the target species
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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4 |
|a African forest elephant
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| 650 |
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4 |
|a Gorilla gorilla gorilla
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| 650 |
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4 |
|a Loxodonta cyclotis
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| 650 |
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4 |
|a Pan troglodytes troglodytes
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| 650 |
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4 |
|a Syncerus caffer nanus
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| 650 |
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4 |
|a betweenness centrality
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| 650 |
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4 |
|a central chimpanzee
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| 650 |
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4 |
|a centralidad intermedia
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| 650 |
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4 |
|a forest buffalo
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| 650 |
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4 |
|a modelo de ocupación
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| 650 |
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4 |
|a occupancy modeling
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| 650 |
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4 |
|a western lowland gorilla
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| 650 |
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4 |
|a 中部黑猩猩
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| 650 |
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4 |
|a 中间中心性
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| 650 |
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4 |
|a 占有建模
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| 650 |
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4 |
|a 森林野水牛
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| 650 |
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4 |
|a 西部低地大猩猩
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| 650 |
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4 |
|a 非洲森林象
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| 700 |
1 |
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|a Nzamba, Brave S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Alonso, Alfonso
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Todd, Angelique F
|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 33(2019), 2 vom: 18. Apr., Seite 329-338
|w (DE-627)NLM098176803
|x 1523-1739
|7 nnns
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| 773 |
1 |
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|g volume:33
|g year:2019
|g number:2
|g day:18
|g month:04
|g pages:329-338
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| 856 |
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|u http://dx.doi.org/10.1111/cobi.13194
|3 Volltext
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|h 329-338
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