Experimental ecology and habitat specificity of the endangered plant Apium repens (Jacq.) Lag. at the northern edge of its range

References

• Barth , U , Gregor , T , Lutz , P , Niederbichler , C , Pusch , J , Wagner , A and Wagner , I . 2000 . Zur Bedeutung extensiv beweideter Nassstandorte für hochgradig bestandsbedrohte Blütenpflanzen und Moose . Natur und Landschaft , 75 : 292 – 300 .
   Google Scholar
• Burmeier , S and Jensen , K . 2008 . Is the endangered Apium repens (Jacq.) Lag. rare because of a narrow regeneration niche? . Plant Species Biology , 23 : 111 – 118 .
   Google Scholar
• Cerný , T , Petřík , P , Boublík , K and Kolbek , J . 2006 . Habitat requirements of Cardaminopsis petraea – rare and relict species of the Czech Republic . Biologia , 61 : 51 – 61 .
   Google Scholar
• Christiansen , A . 1913 . “ Verzeichnis der Pflanzen-Standorte in Schleswig-Holstein und den eingeschlossenen Gebieten Oldenburgs ” . In Hamburgs und Lübecks , Leipzig, , Germany : Quelle & Meyer .
   Google Scholar
• Diekmann , M . 2003 . Species indicator values as an important tool in applied plant ecology – a review . Basic and Applied Ecology , 4 : 493 – 506 .
   Web of Science ®Google Scholar
• Dytham , C . 2003 . Choosing and using statistics: a biologist's guide , Oxford, , UK : Blackwell Science .
   Google Scholar
• Edwards , AL and Weakley , AS . 2001 . Population biology and management of rare plants in depression wetlands of the southeastern coastal plain, USA . Natural Areas Journal , 21 : 12 – 35 .
   Google Scholar
• Ellenberg , H , Weber , HE , Düll , R , Wirth , V , Werner , W and Paulissen , D . 1991 . Zeigerwerte von Pflanzen in Mitteleuropa . Scripta Geobotanica , 18 : 1 – 248 .
   Google Scholar
• Ellstrand , NC and Elam , DR . 1993 . Population genetic consequences of small population size: implications for plant conservation . Annual Review of Ecology and Systematics , 24 : 217 – 242 .
   Google Scholar
• Farnsworth , EJ . 2007 . Plant life history traits of rare versus frequent plant taxa of sandplains: implications for research and management trials . Biological Conservation , 136 : 44 – 52 .
   Google Scholar
• Fox , GA . 1993 . “ Failure-time analysis: emergence, flowering, survivorship, and other waiting times ” . In Design and analysis of ecological experiments , Edited by: Scheiner , SM and Gurevitch , J . 253 – 289 . New York, NY : Chapman & Hall .
   Google Scholar
• Fukarek , F and Voigtländer , U . 1982 . Zur Verbreitung von Apium repens im Norden der DDR . Botanischer Rundbrief für den Bezirk Neubrandenburg , 13 : 3 – 12 .
   Google Scholar
• Gehan , EA . 1965a . A generalized Wilcoxon test for doubly-censored data . Biometrika , 52 : 203 – 223 .
   PubMed Web of Science ®Google Scholar
• Gehan , EA . 1965b . A generalized two-sample Wilcoxon test for doubly-censored data . Biometrika , 52 : 650 – 653 .
   PubMed Web of Science ®Google Scholar
• Goldberg , D and Barton , AM . 1992 . Patterns and consequences of interspecific competition in natural communities: a review of field experiments with plants . The American Naturalist , 139 : 771 – 801 .
   Web of Science ®Google Scholar
• Grace , JB . 1995 . On the measurement of plant competition intensity . Ecology , 76 : 305 – 308 .
   Web of Science ®Google Scholar
• Hartley , S and Kunin , WE . 2003 . Scale dependency of rarity, extinction risk, and conservation priority . Conservation Biology , 17 : 1559 – 1570 .
   Web of Science ®Google Scholar
• Hauke , U . 2003 . Farn- und Blütenpflanzen (Pteridophyta et Spermatophyta) der FFH-Richtlinie. 1.3: Apium repens (Jacquin) Lagasca . Schriftenreihe für Landschaftspflege und Naturschutz , 69 : 40 – 46 .
   Google Scholar
• Jusaitis , M , Polomka , L and Sorensen , B . 2004 . Habitat specificity, seed germination and experimental translocation of the endangered herb Brachycome muelleri (Asteraceae) . Biological Conservation , 116 : 251 – 266 .
   Web of Science ®Google Scholar
• Käsermann , C and Moser , DM . 1999 . “ Apium repens (Jacq.) Lag., Kriechender Eppich, Apiaceae ” . In Merkblätter Artenschutz – Blütenpflanzen und Farne , Edited by: Käsermann , C and Moser , DM . 56 – 57 . Bern, , Switzerland : Bundesamt für Umwelt, Wald und Landschaft .
   Google Scholar
• Kéry , M , Matthies , D and Spillmann , H-H . 2000 . Reduced fecundity and offspring performance in small populations of the declining grassland plants Primula veris and Gentiana lutea . Journal of Ecology , 88 : 17 – 30 .
   Web of Science ®Google Scholar
• Lederbogen , D . 2000 . Standortsansprüche des Kriechenden Sellerie (Apium repens) in südbayerischen Allmendweiden . Verhandlungen der Gesellschaft für Ökologie , 30 : 266
   Google Scholar
• Lederbogen , D , Kaule , G and Rosenthal , G . 2001 . Apium repens als Leitart großflächiger Rinderweiden im voralpinen Hügel- und Moorland Oberbayerns . Berichte der Bayrischen Botanischen Gesellschaft , 71 : 41 – 42 .
   Google Scholar
• Lenssen , JPM , van de Steeg , HM and de Kroon , H . 2004 . Does disturbance favour weak competitors? Mechanisms of changing plant abundance after flooding . Journal of Vegetation Science , 15 : 305 – 314 .
   Google Scholar
• Maas , PA . 1999 . Het voorkomen van Apium repens (Jacq.) Lag. (Kruipend moerasscherm) in Nederland . Gorteria , 25 : 10 – 17 .
   Google Scholar
• Markham , JM and Chanway , CP . 1996 . Measuring plant neighbour effects . Functional Ecology , 10 : 548 – 549 .
   Web of Science ®Google Scholar
• McDonald , AW and Lambrick , CR . 2006 . Apium repens creeping marshwort. Species Recovery Programme 1995–2005 . English Nature Research Reports , 706 : 1 – 118 .
   Google Scholar
• Mooij , RM and Weeda , EJ . 1985 . Apium repens (Jacq.) Lag. in Zeeuwsch-Vlaanderen teruggevonden . Gorteria , 12 : 210 – 215 .
   Google Scholar
• Moora , M , S[otilde]ber , V and Zobel , M . 2003 . Responses of a rare (Viola elatior) and a common (Viola mirabilis) congeneric species to different management conditions in grassland – is different light competition ability responsible for different abundances? . Acta Oecologica , 24 : 169 – 174 .
   Google Scholar
• Oostermeijer , JGB , Luijten , SH and den Nijs , HCM . 2003 . Integrating demographic and genetic approaches in plant conservation . Biological Conservation , 113 : 389 – 398 .
   Web of Science ®Google Scholar
• Pärtel , M , Kalamees , R , Reier , Ü , Tuvi , E-L , Roosaluste , E , Vellak , A and Zobel , M . 2005 . Grouping and prioritization of vascular plant species for conservation: combining natural rarity and management need . Biological Conservation , 123 : 271 – 278 .
   Web of Science ®Google Scholar
• Pavlovic , NB . 1994 . “ Disturbance-dependent persistence of rare plants: anthropogenic impacts and restoration implications ” . In Restoration of endangered species: conceptual issues, planning, and implementation , Edited by: Bowles , ML and Whelan , CJ . 159 – 193 . Cambridge, , UK : Cambridge University Press .
   Google Scholar
• R Development Core Team . 2007 . R: a language and environment for statistical computing , Vienna, , Austria : R Foundation for Statistical Computing .
   Google Scholar
• Rosenthal , G and Lederbogen , D . 2008 . Response of the clonal plant Apium repens (Jacq.) Lag. to extensive grazing . Flora , 203 : 141 – 151 .
   Google Scholar
• Schemske , DW , Husband , BC , Ruckelshaus , MC , Goodwillie , C , Parker , IM and Bishop , JG . 1994 . Evaluating approaches to the conservation of rare and endangered plants . Ecology , 75 : 584 – 606 .
   Web of Science ®Google Scholar
• Schmid , B and Harper , JL . 1985 . Clonal growth in grassland perennials I. Density and pattern-dependent competition between plants with different growth forms . Journal of Ecology , 73 : 793 – 808 .
   Web of Science ®Google Scholar
• Schnittler , M and Günther , K-F . 1999 . Central European vascular plants requiring priority conservation measures – an analysis from national Red Lists and distribution maps . Biodiversity and Conservation , 8 : 891 – 925 .
   Web of Science ®Google Scholar
• Schratt-Ehrendorfer , L . 2001 . Apium repens (Apiaceae) – eine botanische Homestory über eine in Österreich vom Aussterben bedrohte Art . Neilreichia , 1 : 79 – 83 .
   Google Scholar
• Stöhr , O , Gewolf , S and Niederbichler , C . 2004 . Apium repens (JACQ.) LAG. in Scherrasen – eine FFH-Art auf Irrwegen? . Berichte der Bayrischen Botanischen Gesellschaft , 73/74 : 67 – 84 .
   Google Scholar
• Stuhr , J and Jödicke , K . 2007 . FFH-Arten-Monitoring Höhere Pflanzen: Abschlussbericht 2007 , Kiel, , Germany : Ministerium für Landwirtschaft, Umwelt und ländliche Räume .
   Google Scholar
• Suding , KN and Goldberg , D . 2001 . Do disturbances alter competitive hierarchies? . Mechanisms of change following gap creation. Ecology , 82 : 2133 – 2149 .
   Google Scholar
• Sýkora , KV and Westhoff , V . 1985 . Synecology and syntaxonomy of Apium repens (Jacq.) Lag. and Scirpus cariciformis Vest., in particular in the eastern part of Zeeuws-Vlaanderen (Province of Zeeland, the Netherlands) . Tuexenia , 5 : 41 – 57 .
   Google Scholar
• Vogel , A and Büscher , D . 1988 . Verbreitung, Vergesellschaftung und Rückgang von Apium repens (JACQ.) LAG. und Teucrium scordium L. in Westfalen . Floristische Rundbriefe , 22 : 21 – 30 .
   Google Scholar
• Walker , KJ and Preston , CD . 2006 . Ecological predictors of extinction risk in the flora of lowland England, UK . Biodiversity and Conservation , 15 : 1913 – 1942 .
   Web of Science ®Google Scholar
• Wolf , A , Brodmann , PA and Harrison , S . 1999 . Distribution of the rare serpentine sunflower, Helianthus exilis (Asteraceae): the roles of habitat availability, dispersal limitation and species interaction . Oikos , 84 : 69 – 76 .
   Google Scholar