Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses
We tested the following two hypotheses to investigate the attack patterns by gall-inducing insects on their host plant Eriotheca pubescens: (i) vigorous modules are more often attacked by galling insects; and (ii) E. pubescens trees associated with a higher density of co-specific individuals have a...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Santa Catarina
2012-10-01
|
| Series: | Biotemas |
| Subjects: | |
| Online Access: | https://periodicos.ufsc.br/index.php/biotemas/article/view/24776 |
| _version_ | 1818251622841581568 |
|---|---|
| author | Juliana Tuller Antonio Cesar Medeiros Queiroz Giovana Rodrigues Luz Jhonathan Oliveira Silva |
| author_facet | Juliana Tuller Antonio Cesar Medeiros Queiroz Giovana Rodrigues Luz Jhonathan Oliveira Silva |
| author_sort | Juliana Tuller |
| collection | DOAJ |
| description | We tested the following two hypotheses to investigate the attack patterns by gall-inducing insects on their host plant Eriotheca pubescens: (i) vigorous modules are more often attacked by galling insects; and (ii) E. pubescens trees associated with a higher density of co-specific individuals have a higher gall abundance. We collected terminal branches from the host plant to measure their module lengths and gall richness and abundance and determined the E. pubescens densities in a 5m radius around the focal individual. There was a higher availability of short branches. Among the four gall morphotypes, two preferred the higher branches, and the other two morphotypes had no shoot length preference. Gall attack did not present a relationship with the host plant density. Thus, the vigor of E. pubescens was a determining factor only for some gall morphotypes. In contrast, the resource concentration hypothesis was not important at an intraspecific level for gall attack in this system. |
| first_indexed | 2024-12-12T16:11:13Z |
| format | Article |
| id | doaj.art-4c7da9f42bf74d4da065f12359ced9f0 |
| institution | Directory Open Access Journal |
| issn | 0103-1643 2175-7925 |
| language | English |
| last_indexed | 2024-12-12T16:11:13Z |
| publishDate | 2012-10-01 |
| publisher | Universidade Federal de Santa Catarina |
| record_format | Article |
| series | Biotemas |
| spelling | doaj.art-4c7da9f42bf74d4da065f12359ced9f02022-12-22T00:19:11ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432175-79252012-10-01261455110.5007/2175-7925.2013v26n1p4518925Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration HypothesesJuliana Tuller0Antonio Cesar Medeiros Queiroz1Giovana Rodrigues Luz2Jhonathan Oliveira Silva3Universidade Federal de LavrasUniversidade Federal de LavrasCentro de Estudos de Convivência com o SemiáridoUniversidade de BrasíliaWe tested the following two hypotheses to investigate the attack patterns by gall-inducing insects on their host plant Eriotheca pubescens: (i) vigorous modules are more often attacked by galling insects; and (ii) E. pubescens trees associated with a higher density of co-specific individuals have a higher gall abundance. We collected terminal branches from the host plant to measure their module lengths and gall richness and abundance and determined the E. pubescens densities in a 5m radius around the focal individual. There was a higher availability of short branches. Among the four gall morphotypes, two preferred the higher branches, and the other two morphotypes had no shoot length preference. Gall attack did not present a relationship with the host plant density. Thus, the vigor of E. pubescens was a determining factor only for some gall morphotypes. In contrast, the resource concentration hypothesis was not important at an intraspecific level for gall attack in this system.https://periodicos.ufsc.br/index.php/biotemas/article/view/24776EmbiruçúEriotheca pubescensGall-inducing insectPlant module size |
| spellingShingle | Juliana Tuller Antonio Cesar Medeiros Queiroz Giovana Rodrigues Luz Jhonathan Oliveira Silva Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses Biotemas Embiruçú Eriotheca pubescens Gall-inducing insect Plant module size |
| title | Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses |
| title_full | Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses |
| title_fullStr | Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses |
| title_full_unstemmed | Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses |
| title_short | Gall-forming insect attack patterns: a test of the Plant Vigor and the Resource Concentration Hypotheses |
| title_sort | gall forming insect attack patterns a test of the plant vigor and the resource concentration hypotheses |
| topic | Embiruçú Eriotheca pubescens Gall-inducing insect Plant module size |
| url | https://periodicos.ufsc.br/index.php/biotemas/article/view/24776 |
| work_keys_str_mv | AT julianatuller gallforminginsectattackpatternsatestoftheplantvigorandtheresourceconcentrationhypotheses AT antoniocesarmedeirosqueiroz gallforminginsectattackpatternsatestoftheplantvigorandtheresourceconcentrationhypotheses AT giovanarodriguesluz gallforminginsectattackpatternsatestoftheplantvigorandtheresourceconcentrationhypotheses AT jhonathanoliveirasilva gallforminginsectattackpatternsatestoftheplantvigorandtheresourceconcentrationhypotheses |