TY - JOUR A1 - Kruse, Stefan A1 - Wieczorek, Mareike A1 - Jeltsch, Florian A1 - Herzschuh, Ulrike T1 - Treeline dynamics in Siberia under changing climates as inferred from an individual-based model for Larix JF - Ecological modelling : international journal on ecological modelling and engineering and systems ecolog KW - Forest change KW - IBM KW - ODD model description KW - Larix gmelinii KW - Permafrost ecosystem KW - Time-lag effects Y1 - 2016 U6 - https://doi.org/10.1016/j.ecolmodel.2016.08.003 SN - 0304-3800 SN - 1872-7026 VL - 338 SP - 101 EP - 121 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bergholz, Kolja A1 - May, Felix A1 - Ristow, Michael A1 - Giladi, Itamar A1 - Ziv, Yaron A1 - Jeltsch, Florian T1 - Two Mediterranean annuals feature high within-population trait variability and respond differently to a precipitation gradient JF - Basic and applied ecology : Journal of the Gesellschaft für Ökologie N2 - Intraspecific trait variability plays an important role in species adaptation to climate change. However, it still remains unclear how plants in semi-arid environments respond to increasing aridity. We investigated the intraspecific trait variability of two common Mediterranean annuals (Geropogon hybridus and Crupina crupinastrum) with similar habitat preferences. They were studied along a steep precipitation gradient in Israel similar to the maximum predicted precipitation changes in the eastern Mediterranean basin (i.e. -30% until 2100). We expected a shift from competitive ability to stress tolerance with decreasing precipitation and tested this expectation by measuring key functional traits (canopy and seed release height, specific leaf area, N-and P-leaf content, seed mass). Further, we evaluated generative bet-hedging strategies by different seed traits. Both species showed different responses along the precipitation gradient. C. crupinastrum exhibited only decreased plant height toward saridity, while G. hybridus showed strong trends of generative adaptation to aridity. Different seed trait indices suggest increased bet-hedging of G. hybridus in arid environments. However, no clear trends along the precipitation gradient were observed in leaf traits (specific leaf area and leaf N-/P-content) in both species. Moreover, variance decomposition revealed that most of the observed trait variation (>> 50%) is found within populations. The findings of our study suggest that responses to increased aridity are highly species-specific and local environmental factors may have a stronger effect on intraspecific trait variation than shifts in annual precipitation. We therefore argue that trait-based analyses should focus on precipitation gradients that are comparable to predicted precipitation changes and compare precipitation effects to effects of local environmental factors. (C) 2017 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved. KW - Climate change KW - Functional ecology KW - Plant height KW - Drought stress KW - Rainfall gradient KW - Trait-environment relationship KW - Local adaptation KW - Phenotypic plasticity Y1 - 2017 U6 - https://doi.org/10.1016/j.baae.2017.11.001 SN - 1439-1791 SN - 1618-0089 VL - 25 SP - 48 EP - 58 PB - Elsevier CY - Jena ER - TY - JOUR A1 - Tittel, Jörg A1 - Bork, Rudolf A1 - Röpke, Björn A1 - Geldmacher, Karl A1 - Schnur, Tilo A1 - Faust, Berno A1 - Schaphoff, Sibyll A1 - Dalchow, Claus A1 - Woithe, Franka A1 - Bronstert, Axel A1 - Jeltsch, Florian A1 - Jessel, Beate A1 - Zschalich, Andrea A1 - Rößling, Holger A1 - Spindler, Joris A1 - Gaedke, Ursula A1 - Tielbörger, Katja A1 - Kadmon, R. A1 - Müller, J. A1 - Bissinger, Vera A1 - Weithoff, Guntram A1 - Wallschläger, Hans-Dieter A1 - Wiegleb, Gerhard T1 - Umweltforschung für das Land Brandenburg BT - Projekt Ökologie und Naturschutz / Landschaftsplanung / Landschaftsentwicklung JF - Brandenburgische Umwelt-Berichte : BUB ; Schriftenreihe der Mathematisch-Naturwissenschaftlichen Fakultät der Universität Potsdam N2 - BISSINGER, V.; TITTEL, J.: Process rates and growth limiting factors of planktonic algae (Chlamydomonas sp.) from extremely acidic (pH 2,5 - 3) mining lakes in Germany ; BORK, H.-R. et al.: Erodierte Autos und Brunnen in Oregon, USA ; BRONSTERT, A. et al.: Bewirtschaftunsmöglichkeiten im Einzugsgebiet der Havel ; JELTSCH, F. et al.: Beweidung als Degradationsfaktor in ariden und semiariden Weidesystemen ; JELTSCH, F. et al.: Entstehung und Bedeutung räumlicher Vegetationsstrukturen in Trockensavannen: Baum-Graskoexistenz und Artenvielfalt ; JESSEL, B. et al.: Bodenbewertung für Planungs- und Zulassungsverfahren in Brandenburg ; JESSEL, B.; ZSCHALICH, A.: Erarbeitung von Ausgleichs- und Ersatzmaßnahmen für die Wert- und Funktionselemente des Landschaftsbildes ; RÖßLING, H. et al.: Umsetzung von Ausgleichs- und Ersatzmaßnahmen beim Ausbau der Bundesautobahn A 9 ; SPINDLER, J.; GAEDKE, U.: Estimating production in plankton food webs from biomass size spectra and allometric relationships ; TIELBÖRGER, K. et al.: Sukzessionsprozesse in einem Sanddünengebiet nach Ausschluß von Beweidung ; TIELBÖRGER, K. et al.: Populationsdynamische Funktionen von Ausbreitung und Dormanz ; TIELBÖRGER, K. et al.: Raum-zeitliche Populationsdynamik von einjährigen Wüstenpflanzen ; TITTEL, J. et al.: Ressourcennutzung und -weitergabe im planktischen Nahrungsnetz eines extrem sauren (pH 2,7) Tagebausees ; WALLSCHLÄGER, D.; WIEGLEB, G.: Offenland-Management auf ehemaligen und in Nutzung befindlichen Truppenübungsplätzen im pleistozänen Flachland Nordostdeutschlands: Naturschutzfachliche Grundlagen und praktische Anwendungen ; WEITHOFF, G.; GAEDKE, U.: Planktische Räuber-Beute-Systeme: Experimentelle Untersuchung von ökologischen Synchronisationen Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-3828 SN - 1434-2375 SN - 1611-9339 VL - 8 SP - 80 EP - 134 ER - TY - CHAP A1 - Lück, Erika A1 - Balderjahn, Ingo A1 - Kamm, Birgit A1 - Greil, Holle A1 - Wallschläger, Hans-Dieter A1 - Jessel, Beate A1 - Böckmann, Christine A1 - Oberhänsli, Roland A1 - Soyez, Konrad A1 - Schmeer, Ernst A1 - Blumenstein, Oswald A1 - Berndt, Klaus-Peter A1 - Edeling, Thomas A1 - Friedrich, Sabine A1 - Kaden, Klaus A1 - Scheller, Frieder W. A1 - Petersen, Hans-Georg A1 - Asche, Hartmut A1 - Bronstert, Axel A1 - Giest, Hartmut A1 - Gaedke, Ursula A1 - Löhmannsröben, Hans-Gerd A1 - Jeltsch, Florian A1 - Jänkel, Ralph A1 - Gzik, Axel A1 - Bork, Hans-Rudolf A1 - Bork, Hans-Rudolf T1 - Umweltforschung für das Land Brandenburg : Arbeitsgruppen und Professuren Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-3797 ER - TY - JOUR A1 - Eccard, Jana A1 - Dean, W. Richard J. A1 - Wichmann, Matthias A1 - Huttunen, S. M A1 - Eskelinen, Eeva-Liisa A1 - Moloney, Kirk A. A1 - Jeltsch, Florian T1 - Use of large Acacia trees by the cavity dwelling Black-tailed Tree Rat in the southern Kalahari N2 - Recent extensive harvesting of large, often dead Acacia trees in and savanna of southern Africa is cause for concern about the conservation status of the arid savanna and its animal community. We mapped vegetation and nests of the Black-tailed Tree Rat Thallomy's nigricauda to assess the extent to which the rats depend on particular tree species and on the existence of dead, standing trees. The study was conducted in continuous Acacia woodland on the southern and eastern edge of the Kalahari, South Africa. Trees in which there were tree rat nests were compared with trees of similar size and vigour to identify the characteristics of nest sites. Spatial analysis of tree rat distribution was conducted using Ripley's-L function. We found that T nigricauda was able to utilize all available tree species, as long as trees were large and old enough so that cavities were existing inside the stem. The spatial distribution of nest trees did not show clumping at the investigated scale, and we therefore reject the notion of the rats forming colonies when inhabiting continuous woodlands. The selection of a particular tree as a nest site was furthermore depending on the close proximity of the major food plant, Acacia mellifera. This may limit the choice of suitable nest sites. since A. mellifera was less likely to grow within a vegetation patch containing a large trees than in patches without large trees. Y1 - 2006 UR - http://www.sciencedirect.com/science/journal/01401963 U6 - https://doi.org/10.1016/j.jaridenv.2005.06.019 SN - 0140-1963 ER - TY - JOUR A1 - Jeltsch, Florian A1 - Wiegand, T. A1 - Hanski, I. A1 - Grimm, Volker T1 - Using pattern-oriented modeling for revealing hidden information : a key for reconciling ecological theory and application Y1 - 2003 ER - TY - JOUR A1 - Wichmann, Matthias A1 - Jeltsch, Florian A1 - Dean, Richard A1 - Moloney, Kirk A. A1 - Wissel, Christian T1 - Weather does matter : simulating population dynamics of tawny eagle (Aquila rapax) under various rainfall scenarios Y1 - 2002 ER - TY - JOUR A1 - Jeltsch, Florian T1 - Wechselbeziehungen zwischen Artendiversität und struktureller Diversität : modellgestützte Untersuchungen am Beispiel einer semiariden Savanne Y1 - 2002 ER - TY - JOUR A1 - Jeltsch, Florian T1 - Ökologische Forschungen an der Unteren Havel BT - ein Ausblick JF - Brandenburgische Umwelt-Berichte : BUB ; Schriftenreihe der Mathematisch-Naturwissenschaftlichen Fakultät der Universität Potsdam Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-4100 SN - 1434-2375 SN - 1611-9339 VL - 13 SP - 138 EP - 139 ER -