Ergebnisse einschränken

Identity reinforcement or risky organizational change? : Category spanning in humanitarian projects

Kooijman, Eva A. P. ; Beck, Nikolaus

In: Administrative sciences, 2021, vol. 11, no. 4, p. 17

In this study, we investigate the consequences of organizational change that consist of adding new categories to the portfolio of humanitarian organizations. Our aim is to discern differences in these consequences between specialist and generalist organizations. Previous research has shown that spanning categories lead to disadvantages in the evaluation of organizations by audience members in...

Habitat specialization and climate affect arthropod fitness: a comparison of generalist vs. specialist spider species in Arctic and temperate biomes

Ameline, Camille ; Puzin, Charlène ; Bowden, Joseph J. ; Lambeets, Kevin ; Vernon, Philippe ; Pétillon, Julien

In: Biological Journal of the Linnean Society, 2017, vol. 121, no. 3, p. 592-599

Concentrations and δ2H values of cuticular n -alkanes vary significantly among plant organs, species and habitats in grasses from an alpine and a temperate European grassland

Gamarra, Bruno ; Kahmen, Ansgar

In: Oecologia, 2015, vol. 178, no. 4, p. 981-998

Cenozoic evolution of the steppe-desert biome in Central Asia

Barbolini, N. ; Woutersen, A. ; Dupont-Nivet, G. ; Silvestro, Daniele ; Tardif, D. ; Coster, P. M. C. ; Meijer, N. ; Chang, C. ; Zhang, H.-X. ; Licht, A. ; Rydin, C. ; Koutsodendris, A. ; Han, F. ; Rohrmann, A. ; Liu, X.-J. ; Zhang, Y. ; Donnadieu, Y. ; Fluteau, F. ; Ladant, J.-B. ; Le Hir, G. ; Hoorn, C.

In: Science Advances, 2020, vol. 6, no. 41, p. eabb8227

The origins and development of the arid and highly seasonal steppe-desert biome in Central Asia, the largest of its kind in the world, remain largely unconstrained by existing records. It is unclear how Cenozoic climatic, geological, and biological forces, acting at diverse spatial and temporal scales, shaped Central Asian ecosystems through time. Our synthesis shows that the Central Asian...

Ecological consequences of the expansion of N2-fixing plants in cold biomes

Hiltbrunner, Erika ; Aerts, Rien ; Bühlmann, Tobias ; Huss-Danell, Kerstin ; Magnusson, Borgthor ; Myrold, David ; Reed, Sasha ; Sigurdsson, Bjarni ; Körner, Christian

In: Oecologia, 2014, vol. 176, no. 1, p. 11-24

The ongoing naturalisation of Eucalyptus spp. in the Mediterranean Basin: new threats to native species and habitats

Badalamenti, Emilio ; Cusimano, D. ; Mantia, Tommaso La ; Pasta, Salvatore ; Romano, S. ; Troia, Angelo ; Ilardi, V.

In: Australian Forestry, 2018, vol. 81, no. 4, p. 239–249

The genus Eucalyptus has been widely introduced into many regions of the world outside its native range and has become invasive in some Mediterranean biomes (e.g. in southern Africa and California). In the Mediterranean Basin and Europe, eucalypts were introduced at the end of the 18th century. However, natural regeneration events in these regions are recent in time and limited in terms of...

Spiders associated with the meadow and tree canopies of orchards respond differently to habitat fragmentation

Herrmann, John ; Bailey, Debra ; Hofer, Gabriela ; Herzog, Felix ; Schmidt-Entling, Martin

In: Landscape Ecology, 2010, vol. 25, no. 9, p. 1375-1384

Improved water retention links high species richness with increased productivity in arctic tundra moss communities

Rixen, Christian ; Mulder, Christa

In: Oecologia, 2005, vol. 146, no. 2, p. 287-299

Shifts in isotopic signatures of animals with complex life-cycles can complicate conclusions on cross-boundary trophic links

Alp, Maria ; Peckarsky, Barbara ; Bernasconi, Stefano ; Robinson, Christopher

In: Aquatic Sciences, 2013, vol. 75, no. 4, p. 595-606

Genetic differentiation between Arctic and Antarctic monothalamous foraminiferans

Pawlowski, Jan ; Majewski, Wojciech ; Longet, David ; Guiard, Jackie ; Cedhagen, Tomas ; Gooday, Andrew ; Korsun, Sergey ; Habura, Andrea ; Bowser, Samuel

In: Polar Biology, 2008, vol. 31, no. 10, p. 1205-1216