Land Use Change and Mountain Biodiversity - Chapter 9 potx

... al. 198 8; Huntly 199 1; Pac- ala and Crawley 199 2; Gough and Grace 199 8). Herbivory also affects the rates of suc- cession and can produce divergence in succes- sional pathways (Davidson 199 3; ... species, such as Poa annua, Tarax- acum officinaris, and Rumex acetosella, is reported in other studies (Velázquez 199 2; Ver- weij and Budde 199 2; Pels and Verweij 199 2; Podwojews...

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... 196 8– 198 0 Koromi (P) 3850 1051 198 5– 199 1 Mena (s) 1250 387 198 3– 198 8 Rira (s) 3000 848 198 7– 199 0 Tulu Konteh (P) 4050 852 198 5– 199 1 Source: From Hilman ( 198 6); Miehe and Miehe ( 199 4) . 3523_book.fm ... mountains Zone/Woreda Year 199 8 199 9 2000 Semien Mountains North Gondar zone 49. 8 51.2 52.6 Debark 91 .7 94 .4 97 Bale Mountains Bale zone...

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... al. 199 1). Livestock raising is one of the most impor- tant land uses in many montane grasslands (Eckholm 197 5). Particularly in Andean grass- lands, extensive cattle grazing is often com- bined ... community (Belsky 199 2; Diaz et al. 199 2; Milchunas and Lauenroth 199 3; Collins et al. 199 8). They can also regulate eco- system processes such as nutrient cycling (Hobbs et al. 199 1)...

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... States of America on acid-free paper 1 098 7654321 International Standard Book Number-10: 0-8 49 3-3 523-X (Hardcover) International Standard Book Number-13: 97 8-0 -8 49 3-3 52 3-5 (Hardcover) Library ... economically privi- leged parts, population growth and land use pres- sure have often caused an expansion of agricul- tural land use into less suitable regions an...

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... event ( 199 6 to 199 7), when large areas of the 3523_C005.fm Page 69 Wednesday, November 23, 2005 7:50 AM Copyright © 2006 Taylor & Francis Group, LLC 72 Land Use Change and Mountain Biodiversity ... remnants and heath- land at 3100 m, and heathland vegetation at 3300 m. The sites at 3100 m, therefore, enable a direct comparison of geometrid moth communities in he...

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... Latin-America 1500 High-Andean-Lower-paramo 1703 .97 mm a -1 Bimodal-four seasons Upper-paramo 12 29. 33 mm a -1 Bimodal-four seasons Lower-paramo 1716.07 mm a -1 Unimodal-two seasons Middle-paramo 1644.33 ... Cuatrecasas ( 193 4), Cleef ( 198 1), and Rangel-Ch. et al. ( 199 7) and Rangel-Ch. (2000b). The publica- tions of Sturm and Rangel-Ch. ( 198 5), Witte ( 199 4), a...

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... 88.36 Occojuque e,a 4500 99 .63 99 . 59 99. 94 99 .72 Jawacholloca d,b 4400 97 .63 94 .94 90 .93 94 .50 Uracholloca d,b 4350 97 .62 90 .27 88 .94 92 .28 Chullunquiani d,b 4250 94 .61 95 .63 87.63 92 .62 Antakarana c,b 4200 ... 78.64 85 .96 73. 29 79. 30 Huayllapampa c,a 4000 99 .97 98 .63 98 .61 99 .07 Average 94 .38 93 .28 89. 13 92 .26 Note: Using seven range sites mea...

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... between mis- management of rangelands (overstocking) and a short cycle of low precipitation between 199 6 and 199 9 (El Niño–ENSO [El Niño–Southern Oscillation] year in 199 7 to 199 8, with precip- itation ... practices and the evalu- ation of their sustainability (Westoby et al., 198 9; Laycock, 199 1; Ellis and Swift, 198 8; Ellis, 196 0; Dodd, 199 4; Behnke and Scoones, 199 3)....

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... plant commu- nities of the Andean páramos belong (Hedberg and Hedberg 197 9; Smith and Young 198 7), from the humid páramo grasslands in Colom- bia (Hofstede 199 5) to the dry páramos in Ven- ezuela ... 3523_book.fm Page 192 Tuesday, November 22, 2005 11:23 AM Copyright © 2006 Taylor & Francis Group, LLC 196 Land Use Change and Mountain Biodiversity De Robert, P. a...

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... Murghab and the Pamir Botanical Garden at Khorog (Ikonnikov 196 3, 197 9; Agakhanjanz 196 5, 197 8, 198 5, 2002; Agakhanjanz and Jussufbekov 197 5; Stanyukovich 197 3; Walter and Breckle 198 6; Breckle and ... the differ- ences of landscape structure and land use. Biodiversity has been documented quite well by the various studies of the region. For all vegetation types, land...

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