Avian adaptations to the Kalahari environment: A typical continental semidesert

Koedoe - African Protected Area Conservation and Science

 
 
Field Value
 
Title Avian adaptations to the Kalahari environment: A typical continental semidesert
 
Creator Maclean, G. L
 
Subject — —
Description Bird species adapted to the Kalahari are generally either (a) sedentary, insectivorous (or carnivorous) and non-gregarious, or (b) nomadic, granivorous and gregarious even when breeding. Ground-dwelling birds predominate numerically and are cryptically coloured to avoid predation. Many species have nasal glands which secrete hypertonic solutions in response to the intake of fluids with high solute concentrations, as an adaptation to water conservation. Thermoregulation is discussed especially in relation to high ambient temperatures. Breeding is initiated in most species by rainfall or associated ecological effects, correlated with improved body condition of the females; lag periods between rain and egglaying are related to diet and time of year. Nest orientation is also related to season and capitalizes on maximal shade in summer. Parental care in sandgrouse is discussed.
 
Publisher AOSIS Publishing
 
Contributor
Date 1984-12-01
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/koedoe.v27i2.579
 
Source Koedoe; Supplement (1984); 187-193 2071-0771 0075-6458
 
Language eng
 
Relation
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https://koedoe.co.za/index.php/koedoe/article/view/579/608
 
Coverage — — —
Rights Copyright (c) 1984 G. L Maclean https://creativecommons.org/licenses/by/4.0
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