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231225s1995 xx |||||o 00| ||eng c |
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|a 10.1046/j.1523-1739.1995.9051148.x-i1
|2 doi
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|a eng
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| 100 |
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|a Demers, Michael N
|e verfasserin
|4 aut
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| 245 |
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|a Fencerows, Edges, and Implications of Changing Connectivity Illustrated by Two Contiguous Ohio Landscapes
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|c 1995
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 15.07.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a We evaluated the amounts and implications of changes in habitat connectivity on rural land-scapes by modeling the colonization success and subsequent habitat colonization of a model edge organism within real landscapes. We first inventoried the changes in the fencerow and forest-edge network of two contiguous Ohio (U.S.A.) landscapes, an agriculturally dominated till plain and a more diverse and dynamic moraine landscape, from 1940 to 1988. On the moraine the number of fencerows changed little from 1940 to 1971. The number increased by 86 during 1971-1988 as marginal farms were subdivided. The total length of fencerows on the moraine increased 2.5-fold over 48 years. On the till plain the number and total length of fencerows remained relatively constant through the study period. The sum of fencerows and forest edges was used as a measure of total ecotonal edge. On the moraine total edge increased through the study period, whereas on the till plain it decreased. We selected two levels of landscape connectivity, low and high, to model animal habitat colonization success. As connectivity increased the earliest successful colonists preempted an increasingly large proportion of the total suitable habitat, and the probability of successful colonization by later-arriving individuals decreased. The changes in connectivity that resulted from changes in both the fencerow network and the proportion of forested land have resulted in contiguous landscapes that present very different colonization potentials to organisms with long-distance dispersal capability. Given the current uncertainty of the effects of corridors on species-preservation efforts, we suggest that further modeling of this type prior to field testing will add useful insights, especially if conducted using specific species and landscape types. Las cercas, los bordes y las connotaciones de los cambios en la conectividad ilustrados por dos paisajes contiguos de Ohio
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| 650 |
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|a Journal Article
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1 |
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|a Simpson, John W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Boerner, Ralph E J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Silva, Alejandra
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Berns, Leslie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Artigas, Francisco
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Conservation biology : the journal of the Society for Conservation Biology
|d 1999
|g 9(1995), 5 vom: 01. Okt., Seite 1159-1168
|w (DE-627)NLM098176803
|x 1523-1739
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| 773 |
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|g volume:9
|g year:1995
|g number:5
|g day:01
|g month:10
|g pages:1159-1168
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| 856 |
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|u http://dx.doi.org/10.1046/j.1523-1739.1995.9051148.x-i1
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