Habitat change and demography of Primula veris : identification of management targets

Although the effects of deterministic factors on population viability often are more important than stochasticity, few researchers have dealt with the effect of deterministic habitat changes on plant population demography. We assessed population viability for the perennial herb Primula veris L. and...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Conservation biology : the journal of the Society for Conservation Biology. - 1999. - 20(2006), 3 vom: 28. Juni, Seite 833-43
1. Verfasser: Lehtilä, Kari (VerfasserIn)
Weitere Verfasser: Syrjänen, Kimmo, Leimu, Roosa, Garcia, Maria Begoña, Ehrlén, Johan
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Conservation biology : the journal of the Society for Conservation Biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
LEADER 01000naa a22002652 4500
001 NLM164816879
003 DE-627
005 20231223103342.0
007 tu
008 231223s2006 xx ||||| 00| ||eng c
028 5 2 |a pubmed24n0550.xml 
035 |a (DE-627)NLM164816879 
035 |a (NLM)16913047 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Lehtilä, Kari  |e verfasserin  |4 aut 
245 1 0 |a Habitat change and demography of Primula veris  |b identification of management targets 
264 1 |c 2006 
336 |a Text  |b txt  |2 rdacontent 
337 |a ohne Hilfsmittel zu benutzen  |b n  |2 rdamedia 
338 |a Band  |b nc  |2 rdacarrier 
500 |a Date Completed 26.09.2006 
500 |a Date Revised 10.11.2019 
500 |a published: Print 
500 |a Citation Status MEDLINE 
520 |a Although the effects of deterministic factors on population viability often are more important than stochasticity, few researchers have dealt with the effect of deterministic habitat changes on plant population demography. We assessed population viability for the perennial herb Primula veris L. and identified targets for management based on demographic data from five different habitat types representing different degrees of canopy closure. We conducted replicate studies at the border of the distribution area and in more central parts. Demographic patterns were similar between the two regions. Most study populations had a positive population growth, and only populations in late phases of forest succession showed consistently negative trends. The populations of open habitats had high seedling recruitment, and the populations of early and middle forest succession had high seed production. The importance of survival for population growth rate increased with increasing habitat closure, whereas the importance of growth and reproduction decreased. Results of the elasticity analysis suggested that the best method to manage decreasing late-successional populations is to increase survival of the largest individuals. The life-table response experiment (LTRE) analysis, however showed that survival of the largest individuals contributed little to differences in population growth rates of different habitats, whereas seed production and growth of small individuals were more important. Moreover direct perturbation of the performance of the largest stages showed that late-successional populations would not attain positive population growth even if the largest stages had no mortality at all. We conclude that restoration of recruitment is the only possibility for positive population growth in late-successional populations of P. veris, although the elasticities of recruitment transitions are low. Our results also suggest that retrospective demographic methods such as LTRE constitute an important and necessary complement to prospective methods such as elasticities in identifying management targets 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Syrjänen, Kimmo  |e verfasserin  |4 aut 
700 1 |a Leimu, Roosa  |e verfasserin  |4 aut 
700 1 |a Garcia, Maria Begoña  |e verfasserin  |4 aut 
700 1 |a Ehrlén, Johan  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Conservation biology : the journal of the Society for Conservation Biology  |d 1999  |g 20(2006), 3 vom: 28. Juni, Seite 833-43  |w (DE-627)NLM098176803  |x 1523-1739  |7 nnns 
773 1 8 |g volume:20  |g year:2006  |g number:3  |g day:28  |g month:06  |g pages:833-43 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 20  |j 2006  |e 3  |b 28  |c 06  |h 833-43