Identification

Title

Mealworm predation rates in Biodiversity and Ecosystem Function in Tropical Agriculture (BEFTA) plots, Kandista and Ujun Tanjung estates, Indonesia

Abstract

Data comprise mealworm predation rates measured after 24 hours exposure to invertebrates in mature oil palm (2014), and mature and replanted oil palm (2016-2017) plots as part of a large-scale ecological experiment programme (the Biodiversity and Ecosystem Function in Tropical Agriculture project, established in 2013). Eighteen plots were examined across three estates â€“ plots in Ujung Tanjung and Kandista estates were planted in 1987 to 1992 and are mature or over-mature oil palm, while Libo plots (2016-2017 dataset only) were replanted in 2014. Plots were organised in triplets and in in Ujung Tanjung and Kandista, for each triplet one plot was assigned to each of three vegetation treatments: Reduced vegetation cover, normal vegetation management and enhanced vegetation cover. Freshly-killed mealworms (larvae of darkling beetles, Tenebrionidae sp.) were glued onto oil palm fronds trimmed so that ca. 10 cm of each of six leaflets remained. Exclusion and stratum treatments in factorial combinations were applied: caged and uncaged, canopy and ground. The cage exclusion treatments were designed so that most invertebrates could access the fronds but vertebrates could not. Full details about this dataset can be found at https://doi.org/10.5285/03d36ac4-4cf4-46d9-a608-866ba0aab458

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/03d36ac4-4cf4-46d9-a608-866ba0aab458

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/03d36ac4-4cf4-46d9-a608-866ba0aab458.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/03d36ac4-4cf4-46d9-a608-866ba0aab458

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

Geographic location

West bounding longitude

100.003

East bounding longitude

101.662

North bounding latitude

1.812

South bounding latitude

0.516

Temporal reference

Temporal extent

Begin position

2014-01-01

End position

2019-02-01

Dataset reference date

date type

publication

effective date

2019-11-28

Frequency of update

Quality and validity

Lineage

Predation was measured three times in mature oil palm 2014 and six times in both mature and replanted oil palm during 2016-2017. The basic unit for the predation tests was six freshly-killed mealworms (larvae of darkling beetles, Tenebrionidae sp.) glued onto a piece of oil palm frond which had been trimmed so that ca. 10 cm of each of six leaflets remained. Exclusion and stratum treatments were applied in factorial combinations: caged and uncaged, canopy and ground. The cage exclusion treatment was designed such that most invertebrates could access the fronds but vertebrates could not: rat traps held closed with one frond unit inside and one tied to the outside as a control. The traps were metal grid boxes approximately 35 x 20 x 14 cm, with no holes wider than 1cm. One was hoisted into the palm crown while the other was placed at the edge of the harvesting circle under the same palm, to test whether predation rates varied with vertical stratum. Three sets of treatment combinations were placed in each plot, using palms selected by random-number generator. Samples were placed out in the field for approximately 24 hours before being assessed. Basic data checks were carried out (checks for impossible values, such as 11 of 10 seeds remaining). We have error-checked 50% of the data entry against the original field sheets, finding an acceptable error rate of <1% and correcting errors when we encountered them. All changes were recorded and that information remains with the dataset.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Â© University of Cambridge Department of Zoology

Constraint set

Limitations on public access

If you reuse this data, you should cite: Eycott, A. E., Turner, E. C., Luke, S. H., Advento, A. D. (2019). Mealworm predation rates in Biodiversity and Ecosystem Function in Tropical Agriculture (BEFTA) plots, Kandista and Ujun Tanjung estates, Indonesia. NERC Environmental Information Data Centre https://doi.org/10.5285/03d36ac4-4cf4-46d9-a608-866ba0aab458

publisher

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2020-03-13T14:34:22

Metadata language

eng