메뉴 건너뛰기




Volumn 87, Issue , 2014, Pages

Rolling Pampas agroecosystem: Which landscape attributes are relevant for determining bird distributions?

Author keywords

Argentina; Avian conservation; Biodioversity; Landscape planning

Indexed keywords


EID: 84911381701     PISSN: 0716078X     EISSN: 07176317     Source Type: Journal    
DOI: 10.1186/0717-6317-1-1     Document Type: Article
Times cited : (14)

References (66)
  • 1
    • 67650694978 scopus 로고    scopus 로고
    • Expansión de la soja y diversidad de la agricultura Argentina
    • Aizen MA, Garibaldi LA, Dondo M (2009) Expansión de la soja y diversidad de la agricultura argentina. Ecología Austral 19:45-54
    • (2009) Ecología Austral , vol.19 , pp. 45-54
    • Aizen, M.A.1    Garibaldi, L.A.2    Dondo, M.3
  • 2
    • 84864135606 scopus 로고    scopus 로고
    • Bird diversity patterns in neotropical temperate farmlands: The role of environmental factors and trophic groups in the spring and autumn
    • Apellaniz M, Bellocq MI, Filloy J (2012) Bird diversity patterns in neotropical temperate farmlands: the role of environmental factors and trophic groups in the spring and autumn. Austral Ecol 37:547-555
    • (2012) Austral Ecol , vol.37 , pp. 547-555
    • Apellaniz, M.1    Bellocq, M.I.2    Filloy, J.3
  • 4
    • 53349083051 scopus 로고    scopus 로고
    • Land-use and land cover dynamics in South American temperate grasslands
    • Baldi G, Paruelo JM (2008) Land-use and land cover dynamics in South American temperate grasslands. Ecol Soc 13:6. http://www.ecologyandsociety.org/vol13/iss12/art16
    • (2008) Ecol Soc , vol.13 , pp. 6
    • Baldi, G.1    Paruelo, J.M.2
  • 5
    • 33745189838 scopus 로고    scopus 로고
    • Characterizing fragmentation in temperate South America grasslands
    • Baldi G, Guerschman JP, Paruelo JM (2006) Characterizing fragmentation in temperate South America grasslands. Agr Ecosyst Environ 116:197-208
    • (2006) Agr Ecosyst Environ , vol.116 , pp. 197-208
    • Baldi, G.1    Guerschman, J.P.2    Paruelo, J.M.3
  • 7
    • 0037377128 scopus 로고    scopus 로고
    • Farmland biodiversity: Is habitat heterogeneity the key?
    • Benton TG, Vickery JA, Wilson JD (2003) Farmland biodiversity: is habitat heterogeneity the key? Trends Ecol Evol 18:182-188
    • (2003) Trends Ecol Evol , vol.18 , pp. 182-188
    • Benton, T.G.1    Vickery, J.A.2    Wilson, J.D.3
  • 10
    • 79956135743 scopus 로고    scopus 로고
    • Plant species diversity in remnant grasslands on arable soils in the cropping Pampa
    • Burkart S, León R, Conde M, Perelman S (2011) Plant species diversity in remnant grasslands on arable soils in the cropping Pampa. Plant Ecol 212:1009-1024
    • (2011) Plant Ecol , vol.212 , pp. 1009-1024
    • Burkart, S.1    León, R.2    Conde, M.3    Perelman, S.4
  • 11
    • 80054037434 scopus 로고    scopus 로고
    • Pasture area and landscape heterogeneity are key determinants of bird diversity in intensively managed farmland
    • Cerezo A, Conde MC, Poggio S (2011) Pasture area and landscape heterogeneity are key determinants of bird diversity in intensively managed farmland. Biodivers Conserv 20:2649-2667
    • (2011) Biodivers Conserv , vol.20 , pp. 2649-2667
    • Cerezo, A.1    Conde, M.C.2    Poggio, S.3
  • 13
    • 33044499295 scopus 로고    scopus 로고
    • Nonparametric prediction in species sampling
    • Chao A, Shen T-J (2004) Nonparametric prediction in species sampling. J Agric Biol Environ Stat 9:253-269
    • (2004) J Agric Biol Environ Stat , vol.9 , pp. 253-269
    • Chao, A.1    Shen, T.-J.2
  • 14
    • 13544262385 scopus 로고    scopus 로고
    • Program SPADE (Species Prediction and Diversity Estimation)
    • Accessed 01 Jun. 2010 Chapin FS, Zabaleta ES, Eviner VT, Naylor RL, Vitousek PM, Reynolds HL, Hooper DU
    • Chao A, Shen T-J (2010) Program SPADE (Species Prediction and Diversity Estimation). Program and user's guide. http://chao.stat.nthu.edu.tw. Accessed 01 Jun. 2010 Chapin FS, Zabaleta ES, Eviner VT, Naylor RL, Vitousek PM, Reynolds HL, Hooper DU
    • (2010) Program and User's Guide
    • Chao, A.1    Shen, T.-J.2
  • 17
    • 46349097700 scopus 로고    scopus 로고
    • Asociaciones entre diferentes patrones de uso de la tierra y ensambles de aves en agroecosistemas de la Región Pampeana, Argentina
    • Codesido M, Fischer CG, Bilenca D (2008) Asociaciones entre diferentes patrones de uso de la tierra y ensambles de aves en agroecosistemas de la Región Pampeana, Argentina. Ornitol Neotrop 19:575-585
    • (2008) Ornitol Neotrop , vol.19 , pp. 575-585
    • Codesido, M.1    Fischer, C.G.2    Bilenca, D.3
  • 18
    • 79959348860 scopus 로고    scopus 로고
    • Distributional changes of landbird species in agroecosystems of central Argentina
    • Codesido M, González-Fischer C, Bilenca D (2011) Distributional changes of landbird species in agroecosystems of central Argentina. Condor 113:266-273
    • (2011) Condor , vol.113 , pp. 266-273
    • Codesido, M.1    González-Fischer, C.2    Bilenca, D.3
  • 19
    • 84857729453 scopus 로고    scopus 로고
    • Agricultural land-use, avian nesting and rarity in the Pampas of central Argentina
    • Codesido M, González-Fischer C, Bilenca D (2012) Agricultural land-use, avian nesting and rarity in the Pampas of central Argentina. Emu 112:46-54
    • (2012) Emu , vol.112 , pp. 46-54
    • Codesido, M.1    González-Fischer, C.2    Bilenca, D.3
  • 20
    • 0028984838 scopus 로고
    • The distribution and conservation status of the bearded tachuri Polystictus pectoralis
    • Collar NJ, Wege DC (1995) The distribution and conservation status of the bearded tachuri Polystictus pectoralis. Bird Conserv Int 5:367-390
    • (1995) Bird Conserv Int , vol.5 , pp. 367-390
    • Collar, N.J.1    Wege, D.C.2
  • 21
    • 0001333022 scopus 로고    scopus 로고
    • Abundancia y relaciones con el hábitat de aves y mamíferos en pastizales de Paspalum quadrifarium (paja colorada) manejados con fuego (provincia de Buenos Aires, Argentina)
    • Comparatore VM, Martínez MM, Vassallo AI, Barg M, Isacch JP (1996) Abundancia y relaciones con el hábitat de aves y mamíferos en pastizales de Paspalum quadrifarium (paja colorada) manejados con fuego (provincia de Buenos Aires, Argentina). Interciencia 21:228-237
    • (1996) Interciencia , vol.21 , pp. 228-237
    • Comparatore, V.M.1    Martínez, M.M.2    Vassallo, A.I.3    Barg, M.4    Isacch, J.P.5
  • 22
    • 67650700626 scopus 로고    scopus 로고
    • Estructura de la vegetación y selección de hábitats reproductivos en aves del pastizal pampeano
    • Cozzani N, Zalba SM (2009) Estructura de la vegetación y selección de hábitats reproductivos en aves del pastizal pampeano. Ecología Austral 19:35-44
    • (2009) Ecología Austral , vol.19 , pp. 35-44
    • Cozzani, N.1    Zalba, S.M.2
  • 23
    • 48649089905 scopus 로고
    • Segunda Edición Tomos I al V. L. O. L. A, Buenos Aires
    • de la Peña MR (1992) Guía de aves argentinas. Segunda Edición (Tomos I al V). L. O. L. A, Buenos Aires
    • (1992) Guía de Aves Argentinas
    • De La Peña, M.R.1
  • 24
    • 77953416224 scopus 로고    scopus 로고
    • Use and importance of crop and field margin habitats for birds in a neotropical agricultural ecosystem
    • Di Giácomo AS, López De Casenave J (2010) Use and importance of crop and field margin habitats for birds in a neotropical agricultural ecosystem. Condor 112:283-293
    • (2010) Condor , vol.112 , pp. 283-293
    • Di Giácomo, A.S.1    López De Casenave, J.2
  • 25
    • 33745925545 scopus 로고    scopus 로고
    • Biodiversity in the Argentinean Rolling Pampa ecoregion: Changes caused by agriculture and urbanisation
    • Faggi AM, Krellenberg K, Castro R, Arriaga M, Endlicher W (2006) Biodiversity in the Argentinean Rolling Pampa ecoregion: changes caused by agriculture and urbanisation. Erdkunde 60:127-138
    • (2006) Erdkunde , vol.60 , pp. 127-138
    • Faggi, A.M.1    Krellenberg, K.2    Castro, R.3    Arriaga, M.4    Endlicher, W.5
  • 27
    • 33846794862 scopus 로고    scopus 로고
    • Patterns of bird abundance along the agricultural gradient of the Pampean region
    • Filloy J, Bellocq MI (2007) Patterns of bird abundance along the agricultural gradient of the Pampean region. Agr Ecosyst Environ 120:291-298
    • (2007) Agr Ecosyst Environ , vol.120 , pp. 291-298
    • Filloy, J.1    Bellocq, M.I.2
  • 28
    • 0141513401 scopus 로고    scopus 로고
    • Effects of spatial scale and taxonomic group on partitioning of butterfly and bird diversity in the Great Basin, USA
    • Fleishman E, Betrus CJ, Blair RB (2003) Effects of spatial scale and taxonomic group on partitioning of butterfly and bird diversity in the Great Basin, USA. Landscape Ecol 18:675-685
    • (2003) Landscape Ecol , vol.18 , pp. 675-685
    • Fleishman, E.1    Betrus, C.J.2    Blair, R.B.3
  • 31
    • 59549097873 scopus 로고    scopus 로고
    • Bird community responses along urban-rural gradients: Does the size of the urbanized area matter?
    • Garaffa PI, Filloy J, Bellocq MI (2009) Bird community responses along urban-rural gradients: does the size of the urbanized area matter? Land Urban Plan 90:33-41
    • (2009) Land Urban Plan , vol.90 , pp. 33-41
    • Garaffa, P.I.1    Filloy, J.2    Bellocq, M.I.3
  • 33
    • 0042740747 scopus 로고    scopus 로고
    • Additive partitioning of species diversity across multiple spatial scales: Implications for regional conservation of biodiversity
    • Gering JC, Crist TO, Veech JA (2003) Additive partitioning of species diversity across multiple spatial scales: implications for regional conservation of biodiversity. Conserv Biol 17:488-499
    • (2003) Conserv Biol , vol.17 , pp. 488-499
    • Gering, J.C.1    Crist, T.O.2    Veech, J.A.3
  • 34
    • 26844535892 scopus 로고    scopus 로고
    • Ecología Del Paisaje Pampeano: Consideraciones Para Su Manejo Y Conservación
    • Naveh Z, Lieberman AS ed, Editorial Facultad de Agronomía, Buenos Aires
    • Ghersa CM, León RJC (2001) Ecología Del Paisaje Pampeano: Consideraciones Para Su Manejo Y Conservación. In: Naveh Z, Lieberman AS (ed) Ecología de Paisajes. Editorial Facultad de Agronomía, Buenos Aires, pp 471-512
    • (2001) Ecología de Paisajes , pp. 471-512
    • Ghersa, C.M.1    León, R.J.C.2
  • 37
    • 0012420835 scopus 로고    scopus 로고
    • Estacionalidad y relaciones con la estructura del habitat de la comunidad de aves de pastizales de paja colorada (Paspalum quadrifarium) manejados con fuego en la Provincia de Buenos Aires, Argentina
    • Isacch JP, Martínez MM (2001) Estacionalidad y relaciones con la estructura del habitat de la comunidad de aves de pastizales de paja colorada (Paspalum quadrifarium) manejados con fuego en la Provincia de Buenos Aires, Argentina. Ornitol Neotrop 12:345-354
    • (2001) Ornitol Neotrop , vol.12 , pp. 345-354
    • Isacch, J.P.1    Martínez, M.M.2
  • 38
    • 0037774988 scopus 로고    scopus 로고
    • Conservation of pampas and Campos grasslands in Argentina
    • Krapovickas SK, Di Giacomo AS (1998) Conservation of pampas and Campos grasslands in Argentina. Parks 8:47-53
    • (1998) Parks , vol.8 , pp. 47-53
    • Krapovickas, S.K.1    Di Giacomo, A.S.2
  • 39
    • 0030303753 scopus 로고    scopus 로고
    • Statistics and partitioning of species diversity, and similarity among multiple communities
    • Lande R (1996) Statistics and partitioning of species diversity, and similarity among multiple communities. OIKOS 76:5-13
    • (1996) OIKOS , vol.76 , pp. 5-13
    • Lande, R.1
  • 40
    • 3543112289 scopus 로고    scopus 로고
    • Uso de hábitat por aves rapaces en un agroecosistema pampeano
    • Leveau LM, Leveau CM (2002) Uso de hábitat por aves rapaces en un agroecosistema pampeano. Hornero 17:9-15
    • (2002) Hornero , vol.17 , pp. 9-15
    • Leveau, L.M.1    Leveau, C.M.2
  • 41
    • 33745733929 scopus 로고    scopus 로고
    • Riqueza y abundancia de aves en agroecosistemas pampeanos durante el período post-reproductivo
    • Leveau LM, Leveau CM (2004) Riqueza y abundancia de aves en agroecosistemas pampeanos durante el período post-reproductivo. Ornitol Neotrop 15:371-380
    • (2004) Ornitol Neotrop , vol.15 , pp. 371-380
    • Leveau, L.M.1    Leveau, C.M.2
  • 42
    • 33745820283 scopus 로고    scopus 로고
    • Avian community response to urbanization in the Pampean region, Argentina
    • Leveau CM, Leveau LM (2005) Avian community response to urbanization in the Pampean region, Argentina. Ornitol Neotrop 16:503-510
    • (2005) Ornitol Neotrop , vol.16 , pp. 503-510
    • Leveau, C.M.1    Leveau, L.M.2
  • 44
    • 81255158711 scopus 로고    scopus 로고
    • Effects of agriculture expansion and intensification on the vertebrate and invertebrate diversity in the Pampas of Argentina
    • Medan D, Torretta JP, Hodara K, De la Fuente E, Montaldo NH (2011) Effects of agriculture expansion and intensification on the vertebrate and invertebrate diversity in the Pampas of Argentina. Biodivers Conserv 20:3077-3100
    • (2011) Biodivers Conserv , vol.20 , pp. 3077-3100
    • Medan, D.1    Torretta, J.P.2    Hodara, K.3    De La Fuente, E.4    Montaldo, N.H.5
  • 45
    • 0003817869 scopus 로고
    • Buenos Aires, Asoc. Ornitológica del Plata, Vázquez Mazzini Ed. and L. O. L. A Pimentel D, Stachow U, Takacs DA, Brubaker HW, Dumas AR, Meaney JJ
    • Narosky T, Digiacomo AG (1993) Las aves de la Provincia de Buenos Aires: distribución y estatus. Buenos Aires, Asoc. Ornitológica del Plata, Vázquez Mazzini Ed. and L. O. L. A Pimentel D, Stachow U, Takacs DA, Brubaker HW, Dumas AR, Meaney JJ
    • (1993) Las Aves de la Provincia de Buenos Aires: Distribución y Estatus
    • Narosky, T.1    Digiacomo, A.G.2
  • 46
    • 0001283724 scopus 로고
    • Conserving biological diversity in agricultural/forestry systems
    • O'Neil JAS, Onsi DE, Corzilius DB (1992) Conserving biological diversity in agricultural/forestry systems. Bioscience 42:354-362
    • (1992) Bioscience , vol.42 , pp. 354-362
    • O'Neil, J.A.S.1    Onsi, D.E.2    Corzilius, D.B.3
  • 47
    • 77956874966 scopus 로고    scopus 로고
    • Landscape complexity differentially affects alpha, beta, and gamma diversities of plants occurring in fencerows and crop fields
    • Poggio SL, Chaneton EJ, Ghersa CM (2010) Landscape complexity differentially affects alpha, beta, and gamma diversities of plants occurring in fencerows and crop fields. Biol Conserv 143:2477-2486
    • (2010) Biol Conserv , vol.143 , pp. 2477-2486
    • Poggio, S.L.1    Chaneton, E.J.2    Ghersa, C.M.3
  • 48
    • 0003607907 scopus 로고
    • Albany, CA: Pacific Southwest Research Station, Forest Service, US Department of Agriculture. Gen Tech Rep
    • Ralph CJ, Sauer JR, Droege S (1995) Monitoring bird populations by point counts. Albany, CA: Pacific Southwest Research Station, Forest Service, US Department of Agriculture. Gen Tech Rep. PSW-GTR-149
    • (1995) Monitoring Bird Populations by Point Counts
    • Ralph, C.J.1    Sauer, J.R.2    Droege, S.3
  • 49
    • 0022181546 scopus 로고
    • Biological determinants of species diversity
    • Schmida A, Wilson MV (1985) Biological determinants of species diversity. J Biogeogr 12:1-20
    • (1985) J Biogeogr , vol.12 , pp. 1-20
    • Schmida, A.1    Wilson, M.V.2
  • 50
    • 67349122734 scopus 로고    scopus 로고
    • Climate and land-use influences on avifauna in central Argentina: Broad-scale patterns and implications of agricultural conversion for biodiversity
    • Schrag AM, Zaccagnini ME, Calamari N, Canavelli S (2009) Climate and land-use influences on avifauna in central Argentina: broad-scale patterns and implications of agricultural conversion for biodiversity. Agr Ecosyst Environ 132:135-142
    • (2009) Agr Ecosyst Environ , vol.132 , pp. 135-142
    • Schrag, A.M.1    Zaccagnini, M.E.2    Calamari, N.3    Canavelli, S.4
  • 51
    • 57449116566 scopus 로고    scopus 로고
    • Management of novel ecosystems: Are novel approaches required?
    • Seastedt TR, Hobbs RJ, Suding KN (2008) Management of novel ecosystems: are novel approaches required? Front Ecol Environ 6:547-553
    • (2008) Front Ecol Environ , vol.6 , pp. 547-553
    • Seastedt, T.R.1    Hobbs, R.J.2    Suding, K.N.3
  • 52
    • 33746021122 scopus 로고    scopus 로고
    • Increasing awareness of avian ecological function
    • Sekercioglu CH (2006) Increasing awareness of avian ecological function. Trends Ecol Evol 21:464-471
    • (2006) Trends Ecol Evol , vol.21 , pp. 464-471
    • Sekercioglu, C.H.1
  • 54
    • 0034452761 scopus 로고    scopus 로고
    • Humedales antrópicos: Su contribución para la conservación de la biodiversidad en los dominios subtropical y pampásico de la Argentina
    • Shnack JA, Francesco FOD, Colado UR, Novoa ML, Schnack EJ (2000) Humedales antrópicos: su contribución para la conservación de la biodiversidad en los dominios subtropical y pampásico de la Argentina. Ecología Austral 10:63-80
    • (2000) Ecología Austral , vol.10 , pp. 63-80
    • Shnack, J.A.1    Francesco, F.O.D.2    Colado, U.R.3    Novoa, M.L.4    Schnack, E.J.5
  • 55
    • 0027020277 scopus 로고
    • Rio de la Plata grasslands
    • Coupland RT Ed., Elsevier, Amsterdam, The Netherlands
    • Soriano A (1991) Rio de la Plata grasslands. In: Coupland RT (Ed.) Natural grasslands. Introduction and Western Hemisphere. Elsevier, Amsterdam, The Netherlands, pp 367-407
    • (1991) Natural Grasslands. Introduction and Western Hemisphere , pp. 367-407
    • Soriano, A.1
  • 57
    • 77956877680 scopus 로고    scopus 로고
    • Exotic vs. Native plant dominance over 20 years of old-field succession on set-aside farmland in Argentina
    • Tognetti PM, Chaneton EJ, Omacini M, Trebino HJ, León RJC (2010) Exotic vs. native plant dominance over 20 years of old-field succession on set-aside farmland in Argentina. Biol Conserv 143:2494-2503
    • (2010) Biol Conserv , vol.143 , pp. 2494-2503
    • Tognetti, P.M.1    Chaneton, E.J.2    Omacini, M.3    Trebino, H.J.4    León, R.J.C.5
  • 58
    • 22544487542 scopus 로고    scopus 로고
    • Landscape perspectives on agricultural intensification and biodiversity - Ecosystem service management
    • Tscharntke T, Klein AM, Kruess A, Steffan-Dewenter I, Thies C (2005) Landscape perspectives on agricultural intensification and biodiversity - ecosystem service management. Ecol Lett 8:857-874
    • (2005) Ecol Lett , vol.8 , pp. 857-874
    • Tscharntke, T.1    Klein, A.M.2    Kruess, A.3    Steffan-Dewenter, I.4    Thies, C.5
  • 59
    • 70349124556 scopus 로고    scopus 로고
    • Land use change patterns in the Río de la Plata grasslands: The influence of phytogeographic and political boundaries
    • Vega E, Baldi G, Jobbagy EG, Paruelo J (2009) Land use change patterns in the Río de la Plata grasslands: the influence of phytogeographic and political boundaries. Agr Ecosyst Environ 134:287-292
    • (2009) Agr Ecosyst Environ , vol.134 , pp. 287-292
    • Vega, E.1    Baldi, G.2    Jobbagy, E.G.3    Paruelo, J.4
  • 60
    • 67649363143 scopus 로고    scopus 로고
    • Arable field margins managed for biodiversity conservation: A review of food resource provision for farmland birds
    • Vickery JA, Feber RE, Fuller RJ (2009) Arable field margins managed for biodiversity conservation: a review of food resource provision for farmland birds. Agr Ecosyst Environ 133:1-13
    • (2009) Agr Ecosyst Environ , vol.133 , pp. 1-13
    • Vickery, J.A.1    Feber, R.E.2    Fuller, R.J.3
  • 61
    • 0038108650 scopus 로고    scopus 로고
    • Species composition in agroecosystems: The effect of landscape, habitat, and farm management
    • Weibull AC, Östman O (2003) Species composition in agroecosystems: the effect of landscape, habitat, and farm management. Basic Appl Ecol 4:349-361
    • (2003) Basic Appl Ecol , vol.4 , pp. 349-361
    • Weibull, A.C.1    Östman, O.2
  • 62
    • 84862142863 scopus 로고    scopus 로고
    • A fuzzy logic method to assess the relationship between landscape patterns and bird richness of the Rolling Pampas
    • Weyland F, Baudry J, Ghersa C (2012) A fuzzy logic method to assess the relationship between landscape patterns and bird richness of the Rolling Pampas. Landscape Ecol 27:869-885
    • (2012) Landscape Ecol , vol.27 , pp. 869-885
    • Weyland, F.1    Baudry, J.2    Ghersa, C.3
  • 63
    • 51249089038 scopus 로고    scopus 로고
    • Changing grass height alters foraging site selection by wintering farmland birds
    • Whittingham MJ, Devereux CL (2008) Changing grass height alters foraging site selection by wintering farmland birds. Basic Appl Ecol 9:779-788
    • (2008) Basic Appl Ecol , vol.9 , pp. 779-788
    • Whittingham, M.J.1    Devereux, C.L.2
  • 64
    • 0036034377 scopus 로고    scopus 로고
    • Woody plant invasion in relictual grasslands
    • Zalba SM, Villamil CB (2002) Woody plant invasion in relictual grasslands. Biol Invasions 4:55-72
    • (2002) Biol Invasions , vol.4 , pp. 55-72
    • Zalba, S.M.1    Villamil, C.B.2
  • 65
    • 0002124076 scopus 로고
    • The removal method of population estimation
    • Zipping C (1958) The removal method of population estimation. J Wildlife Manage 22:82-90
    • (1958) J Wildlife Manage , vol.22 , pp. 82-90
    • Zipping, C.1
  • 66
    • 0024897346 scopus 로고
    • The land unit - A fundamental concept in landscape ecology, and its applications
    • Zonneveld IS (1989) The land unit - a fundamental concept in landscape ecology, and its applications. Landscape Ecol 3:67-86
    • (1989) Landscape Ecol , vol.3 , pp. 67-86
    • Zonneveld, I.S.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.