Colonization of dynamic Mediterranean landscapes: where do birds come from after fire?

Journal of Biogeography - Tập 32 Số 5 - Trang 789-798 - 2005
Lluı́s Brotons1,2, Pere Pons3, Sergi Herrando4
1Centre Tecnològic Forestal de Catalunya, Solsona, Spain
2Centre d'Ecologie Fonctionelle et Evolutive-CNRS, Montpellier, France
3Departament de Ciències Ambientals, Universitat de Girona, Girona, Spain
4Institut Català d'Ornitologia, Museu de Zoologia, Barcelona, Catalonia, Spain

Tóm tắt

AbstractAim Two main mechanisms may explain post‐disturbance species colonization patterns of early successional habitats such as those originated by wildfires. First, post‐disturbance colonization is not limited by the dispersal ability of the species to reach the newly created open areas and, secondly, colonization is limited by dispersal. Under the first hypothesis, we expect, at a regional scale, to find similar post‐disturbance communities to develop on recently burned sites. However, colonization limited by dispersal will lead to strong between‐site variations in species composition.Location To test these hypotheses, we studied the post‐fire colonization patterns of nine open‐habitat bird species in eight distantly located wildfires in the north‐eastern Iberian Peninsula.Methods We censused post‐fire bird composition by means of field transects and identified potential colonization sources from species–habitat suitability maps derived from atlas data.Results Our results showed strong significant differences in post‐fire species composition between burnt areas. Burnt areas located in areas with low probability of species presence before the fire event showed lower species occurrence and richness after the fire.Main conclusions These results do not support the idea that early successional stages and open habitats have a homogeneous community structure at regional scales and suggest that dispersal is a key constraint determining bird colonization of post‐fire habitats. Further attention should be paid to landscape heterogeneity as a key factor in determining population dynamics of open‐habitat species in the light of current and future land‐use changes in Mediterranean regions.

Từ khóa


Tài liệu tham khảo

10.2307/2404755

Baker H.G., 1977, The genetics of colonizing species

10.1016/S0006-3207(01)00177-X

Bibby C., 1992, Bird census techniques

Blondel J., 1999, Biology and wildlife of the Mediterranean region

10.1146/annurev.ecolsys.32.081501.114031

10.1111/j.0906-7590.2004.03764.x

10.1111/j.1600-0587.2000.tb00299.x

10.1046/j.1523-1739.1997.96187.x

10.1098/rspb.2000.1325

10.2307/3544901

10.1017/S0376892997000088

10.1034/j.1600-0706.2001.930105.x

10.1890/06-0539

Hanski I., 1999, Metapopulation ecology, 10.1093/oso/9780198540663.001.0001

Herrando S., 2002, Bird community succession after fire in a dry Mediterranean shrubland, Ardea, 90, 303

10.2307/1931746

10.1139/z99-172

10.1071/WF9970335

10.1890/0012-9615(1998)068[0421:DSCDIS]2.0.CO;2

Johnson C.G., 1969, Insect migration and dispersal by flight

10.1146/annurev.es.21.110190.002313

10.1034/j.1600-0706.2002.980208.x

10.2307/3546427

10.2307/1933775

Legendre P., 1998, Numerical ecology

10.1126/science.1075664

10.1023/A:1022966930861

MacArthur R.H., 1967, The theory of island biogeography

10.1007/978-1-4899-3242-6

10.1086/285453

10.1023/A:1011169614489

10.1023/A:1013130528470

10.1007/978-1-4613-8395-6

10.1046/j.1523-1739.2001.015003737.x

10.1093/biomet/78.3.691

Petersen K.L., 1987, Effects of prescribed burning on nongame birds in a Sagebrush community, Wildlife Society Bulletin, 15, 317

10.2307/3565258

10.1023/A:1005316632105

Pons P., 1998, Fire management and landscape ecology, 261

Pons P., 2002, Fire, landscape and biodiversity: an appraisal of the effects and effectiveness, 57

Pons P., 1996, Short term temporal patterns in a Mediterranean shrubland bird community after wildfire, Acta Oecologica, 17, 29

10.1007/BF02698207

Prodon R., 1987, Incendies et protection des oiseaux en France méditerranéenne, L'Oiseau et la Revue Française d'Ornithologie, 57, 1

Prodon R., 1993, Une alternative aux ‘types biogéographiques’ de Voous: la mesure des distributions latitudinales, Alauda, 62, 83

Real J., 2000, Wildfires could favour Black Wheather Oenanthe leucura recolonisation, Ardeola, 47, 93

10.1046/j.1365-2664.2001.00667.x

10.1071/WF01050

10.1016/S0006-3207(01)00213-0

10.1098/rspb.1999.0696

10.1071/WR9880331

Thông tin
Thông tin xuất bản

Journal of Biogeography

Tập 32 Số 5

789-798

Thông tin tác giả