| |
| Web URL(s): | https://academic.oup.com/ee/article/36/6/1494/506126/Estimating-Acridid-Densities-in-Grassland-Habitats
Last checked: 02/17/2017
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Badenhausser, I.;
Amouroux, P.;
Bretagnolle, V. |
|---|
| Author Affiliation: | Badenhausser and Amouroux: Institute National de la Recherche Agronomique-Unité de Génétique et d'Amélioration des Plantes Fourrag^D`res, Laboratoire de Zoologie, Lusignan, France; Bretagnolle: Centre d'Etudes Biologiques de Chizé-Centre National de la Recherche Scientifique, Beauvoir sur Niort, France |
|---|
| Title: | Estimating acridid densities in grassland habitats: A comparison between presence-absence and abundance sampling designs |
|---|
| Section: | Sampling
Other records with the "Sampling" Section
|
|---|
| Source: | Environmental Entomology. Vol. 36, No. 6, December 2007, p. 1494-1503. |
|---|
| Publishing Information: | College Park, MD: Entomological Society of America |
|---|
| # of Pages: | 10 |
|---|
| Keywords: | TIC Keywords: Acrididae; Population dynamics; Sampling; Gomphocerinae; Grasshoppers; Distribution patterns
|
|---|
| Abstract/Contents: | "Sampling methods to estimate acridid density per surface area unit in grassland habitats were compared using presence-absence data and count data. Sampling plans based on 6 yr of surveys were devised to estimate the density of Chorthippus spp., Euchorthippus spp., and Calliptamus italicus L. These acridids represented >90% of species in the study area. Sampling plans based on count data provided a reasonable tool when densities were >1/m2 and when the level of precision was 0.20-0.30. A binomial sampling plan can be used to estimate C. italicus density with a level of precision ≥0.28. Sampling characteristics, i.e., estimated mean, actual precision, and sample size, were established on validation data sets with bootstrapping analysis. Sampling costs were also calculated according to density-dependent functions. Comparison between binomial sampling and enumerative sampling of C. italicus showed that binomial sampling required less time than enumerative sampling when densities were ≤2/m2 and when fixed precision was >0.35. Plot area had no significant effect on sample variances of counts." |
|---|
| Language: | English |
|---|
| References: | 44 |
|---|
| Note: | Figures
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Badenhausser, I., P. Amouroux, and V. Bretagnolle. 2007. Estimating acridid densities in grassland habitats: A comparison between presence-absence and abundance sampling designs. Environ. Entomol. 36(6):p. 1494-1503. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=132910 |
| If there are problems with this record, send us feedback about record 132910. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://academic.oup.com/ee/article/36/6/1494/506126/Estimating-Acridid-Densities-in-Grassland-Habitats
Last checked: 02/17/2017
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2206896a |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
