Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile
Nurse effects, which occur when one plant species enhances the survival or growth of another plant species, are predicted to be most relevant in stressful environments. These effects are particulary important during seedling establishment due to their vulnerability to both biotic and abiotic factors...
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| Lenguaje: | English |
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Sociedad de Biología de Chile
2006
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oai:scielo:S0716-078X20060003000052006-10-03Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central ChileACUÑA-RODRÍGUEZ,IAN SCAVIERES,LOHENGRIN AGIANOLI,ERNESTO acilitation Laretia acaulis herbivory tolerance nurse effect Nurse effects, which occur when one plant species enhances the survival or growth of another plant species, are predicted to be most relevant in stressful environments. These effects are particulary important during seedling establishment due to their vulnerability to both biotic and abiotic factors, such as herbivory and drought. Tolerance to herbivory reflects the degree to which plants are able to regrow and reproduce after damage, and should vary with resource availability. In the high Andes of central Chile, the cushion plant Laretia acaulis (Apiaceae) acts as a buffer against environmental stress, enhancing survival of several associated plant species. We hypothesized that tolerance to herbivory of seedlings growing inside the canopy of L. acaulis should be greater than that of seedlings growing outside the cushion plant. We conducted a field experiment to test this hypothesis for two native perennial species in the high Andes of central Chile: Hordeum comosum (Poaceae) and Haplopappus anthylloides (Asteraceae). Seedlings of each species were planted inside and outside L. acaulis cushions and half of them received manual damage (50 % foliar tissue removed). Seedlings growing inside the nurse species showed high survival independent of the damage treatment. Whereas position (inside or outside the cushion plant) did not affect tolerance of Haplopappus anthylloides, it significantly affected tolerance of Hordeum comosum. Thus, we found similar survival of damaged and control seedlings of H. comosum inside the cushions, but survival of damaged seedlings in the bare ground was lower than that of control seedlings. We verified the occurrence of nurse effects of Laretia acaulis on the establishment of both species, and detected enhancement of tolerance to damage in Hordeum comosum in this stressful habitatinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.79 n.3 20062006-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000300005en10.4067/S0716-078X2006000300005 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
acilitation Laretia acaulis herbivory tolerance nurse effect |
| spellingShingle |
acilitation Laretia acaulis herbivory tolerance nurse effect ACUÑA-RODRÍGUEZ,IAN S CAVIERES,LOHENGRIN A GIANOLI,ERNESTO Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| description |
Nurse effects, which occur when one plant species enhances the survival or growth of another plant species, are predicted to be most relevant in stressful environments. These effects are particulary important during seedling establishment due to their vulnerability to both biotic and abiotic factors, such as herbivory and drought. Tolerance to herbivory reflects the degree to which plants are able to regrow and reproduce after damage, and should vary with resource availability. In the high Andes of central Chile, the cushion plant Laretia acaulis (Apiaceae) acts as a buffer against environmental stress, enhancing survival of several associated plant species. We hypothesized that tolerance to herbivory of seedlings growing inside the canopy of L. acaulis should be greater than that of seedlings growing outside the cushion plant. We conducted a field experiment to test this hypothesis for two native perennial species in the high Andes of central Chile: Hordeum comosum (Poaceae) and Haplopappus anthylloides (Asteraceae). Seedlings of each species were planted inside and outside L. acaulis cushions and half of them received manual damage (50 % foliar tissue removed). Seedlings growing inside the nurse species showed high survival independent of the damage treatment. Whereas position (inside or outside the cushion plant) did not affect tolerance of Haplopappus anthylloides, it significantly affected tolerance of Hordeum comosum. Thus, we found similar survival of damaged and control seedlings of H. comosum inside the cushions, but survival of damaged seedlings in the bare ground was lower than that of control seedlings. We verified the occurrence of nurse effects of Laretia acaulis on the establishment of both species, and detected enhancement of tolerance to damage in Hordeum comosum in this stressful habitat |
| author |
ACUÑA-RODRÍGUEZ,IAN S CAVIERES,LOHENGRIN A GIANOLI,ERNESTO |
| author_facet |
ACUÑA-RODRÍGUEZ,IAN S CAVIERES,LOHENGRIN A GIANOLI,ERNESTO |
| author_sort |
ACUÑA-RODRÍGUEZ,IAN S |
| title |
Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| title_short |
Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| title_full |
Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| title_fullStr |
Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| title_full_unstemmed |
Nurse effect in seedling establishment: facilitation and tolerance to damage in the Andes of central Chile |
| title_sort |
nurse effect in seedling establishment: facilitation and tolerance to damage in the andes of central chile |
| publisher |
Sociedad de Biología de Chile |
| publishDate |
2006 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000300005 |
| work_keys_str_mv |
AT acunarodriguezians nurseeffectinseedlingestablishmentfacilitationandtolerancetodamageintheandesofcentralchile AT caviereslohengrina nurseeffectinseedlingestablishmentfacilitationandtolerancetodamageintheandesofcentralchile AT gianoliernesto nurseeffectinseedlingestablishmentfacilitationandtolerancetodamageintheandesofcentralchile |
| _version_ |
1718439590568656896 |