data_woodchat11: Data for woodchat shrike from Germany, 1964-1992

In IPMbook: Functions and Data for the Book 'Integrated Population Models'

Data for woodchat shrike from Germany, 1964-1992

Description

Real data for the woodchat shrike (Lanius senator) were collected from 1964 to 1992 from a study area in southern Germany.

They comprise the annual number of breeding pairs, information about productivity from regular checks of nests, and capture, ringing and resighting of juvenile and adult shrikes. In some years, no resighting data were collected.

Usage

data(woodchat11)

Format

woodchat11 is a list with 6 components:

ch

capture histories for 1079 individuals (males and females) x 29 years.

age

the age of each individual at first capture, 1 = nestling (juvenile), 2 = at least 1 year old (adult).

count

the annual number of breeding pairs found in the study area.

f

the number fledglings (male or female) produced by 365 broods monitored.

d

d = 0 if f is an accurate count, d = 1 if it is a lower bound.

year

the year the brood was monitored.

Source

Bruno Ullrich

References

Ullrich, B. (2017) Entdeckung und Aussterben einer Population des Rotkopfwürgers Lanius senator in den Streuobstwiesen des Mittleren Albvorlandes, Landkreise Göppingen und Esslingen am Neckar. Ökologie der Vögel 35, 273-335.

Schaub, M., Kéry, M. (2022) Integrated Population Models, Academic Press, section 11.4.

Schaub, M., B. Ullrich (2021) A drop in immigration results in the extinction of a local woodchat shrike population. Animal Conservation 24, accepted <https://doi.org/10.1111/acv.12639>

Examples

data(woodchat11)
str(woodchat11)

IPMbook documentation built on Aug. 22, 2023, 1:07 a.m.