Sitters, J., Heitkonig, I.M.A., Holmgren, M., Ojwang, G.S.O.
Wild herbivore diversity and abundance have declined in African savannas for the past 20 years. Competition for forage resources between wild herbivore and livestock species might contribute to this...
Pulse driven loss of top-down control: The critical rate hypothesis (on line) (2008)
Scheffer, M., Nes, E.H., Van, Holmgren, M., Hughes, T.
In systems ranging from lakes and woodlands to coral reefs, the long-term ecosystem state may often be determined largely by rare extreme events such as wet ENSO years, droughts, or disease...
Lopez, B.C., Holmgren, M., Sabate, S., Gracia, C.A.
In arid and semi-arid ecosystems, water availability is discontinuous, highly variable, and characterized by discrete pulse events separated by long periods of limited resource availability. Plant...
Acácio, V.C., Holmgren, M., Rego, F., Moreira, F., Mohren, G.M.J.
In the Iberian Peninsula Mediterranean oak forests have been transformed into a mosaic landscape of four main patch-types: forests, savannas, shrublands and grasslands. We used aerial photographs...
Pulse driven loss of top-down control: The critical-rate hypothesis (2008)
Scheffer, M., Nes, E.H., Van, Holmgren, M., Hughes, T.
In systems ranging from lakes and woodlands to coral reefs, the long-term ecosystem state may often be determined largely by rare extreme events such as wet ENSO years, droughts, or disease...
Rainfall as a driving factor for species distribution and richness in West African forests (2008)
Poorter, L., Holmgren, M., Bongers, F., Wieringa, J.J., Siepel, A.
Pastoralist decisions can reduce resource competition between cattle and wild grazers (2008)
Sitters, J., Heitkonig, I.M.A., Holmgren, M., Ojwang, G.S.O.
Is there a rainfall threshold for Prosopis spp seedling establishment in Chile and Peru? (2008)
Squeo, F.A., Alban, L., Gutierrez, J.R., Holmgren, M., Jimenez, P.
Do termites enhance the invasion of southern African savannas by alien plants? (2008)
Masocha, M., Skidmore, A.K., Prins, H.H.T., Holmgren, M., Leeuw, J., De
Reduced herbivore pressure under rainy ENSO conditions could facilitate dryland reforestation (2007)
Gutierrez, J.R., Holmgren, M., Manrique, R., Squeo, F.A.
Most semi-arid and arid regions around the world have lost a major part of their original vegetation. Restoration of once shrublands and woodlands is often challenged by low seedling establishment...
Manrique, R., Gutierrez, J.R., Holmgren, M., Squeo, F.A.
Most semi-arid and arid regions around the world have lost a major part of their original vegetation. Restoration of once shrublands and woodlands is often challenged by low seedling establishment...
Tree establishment along an ENSO experimental gradient in the Atacama desert (2007)
Squeo, F.A., Holmgren, M., Jimenez, L., Alban, L., Reyes, J., Gutierrez, J.R.
Questions: (1) What are the roles of regional climate and plant growth rate for seedling establishment during ENSO rainy pulses along the western coast of South America? (2) What is the water...
Does a ruderal strategy dominate the endemic flora of the West African forests? (2007)
Aim To understand the distribution pattern of endemic plant species in West African rain forests, one of the global priority areas for biodiversity conservation. Location Upper Guinean forests, West...
Manrique, R., Gutierrez, J.R., Holmgren, M., Squeo, F.A.
El Niño Southern Oscillation (ENSO) events have profound consequences for the dynamics of terrestrial ecosystems. Since increased climate variability is expected to favour the invasive success of...
Multiple recruitment limitation causes arrested succession in Mediterranean Cork Oak systems (2007)
Acácio, V., Holmgren, M., Jansen, P.A., Schrotter, O.
Lack of tree regeneration and persistency of species-poor shrublands represent a growing problem across Mediterranean evergreen oak forests. What constrains forest regeneration is poorly understood,...
Biaou, S.S.H., Sterck, F.J., Holmgren, M., Sokpon, N., Mohren, G.M.J.
An extensive vegetation survey permitted to assess the distribution of tree species in Benin and the role of several environmental factors. In 2001 and 2003, data were collected from 341 sites...
Extreme climatic events shape arid and semiarid ecosystems (2006)
Holmgren, M., Stapp, P., Dickman, C., Gracia, C., Graham, S.
Holmgren, M., Lopez, B.C., Gutierrez, J.R., Squeo, F.A.
While climatic extremes are predicted to increase with global warming, we know little about the effect of climatic variability on biome distribution. Here, we show that rainy El Niño Southern...
A synthesis of ENSO effects on drylands in Australia, North America and South America (2006)
Holmgren, M., Stapp, P., Dickman, C. R., Gracia, C., Graham, S., Gutiérrez, J. R., ...
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
A synthesis of ENSO effects on drylands in Australia, North America and South America (2006)
Holmgren, M., Stapp, P., Dickman, C. R., Gracia, C., Graham, S., Gutiérrez, J. R., ...
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
A synthesis of ENSO effects on drylands in Australia, North America and South America (2006)
Holmgren, M., Stapp, P., Dickman, C. R., Gracia, C., Graham, S., Gutiérrez, J. R., ...
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
A synthesis of ENSO effects on drylands in Australia, North America and South America (2006)
Holmgren, M., Stapp, P., Dickman, C. R., Gracia, C., Graham, S., Gutiérrez, J. R., ...
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
Synergy between small- and large-scale feedbacks of vegetation on the water cycle (2005)
Scheffer, M., Holmgren, M., Brovkin, V., Claussen, M.
Predictions of the effects of climate change on the extent of forests, savannas and deserts are usually based on simple response models derived from actual vegetation distributions. In this review,...
A synthesis of ENSO effects on drylands in Australia, North America and South America (2005)
Holmgren, M., Stapp, P., Dickman, C., Gracia, C., Graham, S.
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
Holmgren, M., Svensson, T., Johnson, E., Johansson, K.
This paper presents the experiences of calculation and reporting uncertainty of measurement in fatigue testing. Six Nordic laboratories performed fatigue tests on steel specimens. The laboratories...
Blues in the Roer Valley: habitat selection and behaviour of Maculinea nausithous butterflies (2005)
Jansen, S.H.D.R., Holmgren, M., Wynhoff, I.
Evaluation of Rail Inspection and Maintenance Strategies (2005)
Chattopadhyay, Gopi, Holmgren, M, Kumar, Uday, Larsson-Kraik, Per
Evaluation of Rail Inspection and Maintenance Strategies (2005)
Chattopadhyay, Gopi, Holmgren, M, Kumar, Uday, Larsson-Kraik, Per
Evaluation of Rail Inspection and Maintenance Strategies (2005)
Chattopadhyay, Gopi, Holmgren, M, Kumar, Uday, Larsson-Kraik, Per
Evaluation of Rail Inspection and Maintenance Strategies (2005)
Chattopadhyay, Gopi, Holmgren, M, Kumar, Uday, Larsson-Kraik, Per
Ecological profiles of rare and endemic species (2004)
Holmgren, M., Poorter, L., Siepel, A., Bongers, F.J.J.M., Buitelaar, M., Chatelain, C., ...
Response of understory Tree Seedling Populations to Spatiotemporal Variation in Soil Moisture (2003)
ENSO impacts on terrestrial ecosystems (2003)
Holmgren, M., Alban, L., Gracia, C., Gutierrez, J.R., Jimenez, P., Jimenez, M., ...
El Niño as a window of opportunity for the restoration of degraded arid ecosystems (2001)
Most arid ecosystems have suffered from severe overexploitation by excessive wood harvesting, overgrazing, and agriculture, resulting in depletion of vegetation biomass and soil erosion. These...
El Niño effects on the dynamics of terrestrial ecosystems (2001)
Holmgren, M., Scheffer, M., Ezcurra, E., Gutiérrez, J.R., Mohren, G.M.J.
New studies are showing that the El Niño Southern Oscillation (ENSO) has major implications for the functioning of different ecosystems, ranging from deserts to tropical rain forests. ENSO-induced...
Holmgren, M., Avilés, R., Sierralta, L., Segura, A.M., Fuentes, E.R.
We show field and experimental evidence that introduced herbivores and soil degradation strongly influence the distribution of introduced herbs in the Chilean matorral. In the field, the relative...