Laughing Dove (Spilopelia senegalensis) Science Article 2 abstract Phenotypic flexibility in basal metabolic rate (BMR) in response to short-term thermalacclimation was assessed in the Laughing Dove (Streptopelia senegalensis), a commonresident bird species distributed throughout most of southern Africa. Kinesh Chetty, Faculty of Science, University of the Witwatersrand, Johannesburg Download article download full text (pdf)
Category: Africa
Do sympatric doves Streptopelia spp. overlap their vocal activities?
Laughing Dove (Spilopelia senegalensis) Science Article 4 abstract Diurnal vocal activity of three Streptopelia species living sympatrically was analysed. Thedoves showed similar patterns of vocal activity during the day. This suggests that the three species donot avoid acoustic interference by differentiating their vocal activity patterns. GRZEGORZ KOPIJ, BIOL. LETT. 2003, 40(2): 137-139 Download article download […]
Adjacent nesting by Lammergeier Gypaetusbarbatus and Himalayan Griffon Gypshimalayensis on the Tibetan Plateau, China
Lammergeier (Gypaetus barbatus) Science Article 2 abstract Old world vultures are thought to partition or competefor several types of resources. For example, in Africa,where vulture species diversity is highest, there isevidence that they compete for food (Petrides 1959,Konig 1983, Mundy et al. 1992, Hertel 1994). InEurope, Eurasian Griffon Gyps fulvus compete extensivelywith Lammergeiers Gypaetus barbatus […]
Interactive behaviour between Bearded Vultures Gyp tus barbatus and Common Ravens Corvus corax in the nesting sites: predation risk and kleptoparasitism
Lammergeier (Gypaetus barbatus) Science Article 1 abstract Aims: Aggressive interactions between the Bearded Vulture Gyp tus barbatus and the Common Raven Corvus corax are frequent in the Pyrenean nesting sectors shared by both species. The Bearded Vulture’s nesting sectors are vulnerable to kleptoparasitism (food is stored in a visible and predictable manner in nests, perching […]
Nest-building behaviour of the Bearded Vulture Gypaetus barbatus
Lammergeier (Gypaetus barbatus) Science Article 3 abstract Bearded Vultures Gypaetus barbatus began supplying material to their nests on average 111 d (range 91-126 d) prior to laying. Males were significantly more active that females. Heavy material (branches) was transported indistinctly in the talons or in the bill while lining (wool) was generally transported in the […]
Habitat use and mating system of the houbara bustard ( Chlamydotis undulata undulata ) in a semi-desertic area of North Africa: implications for conservation
Houbara Bustard (Chlamydotis undulata) Science Article 2 abstract Studies of the movements and home-ranges of houbara bustards (Chlamydotis undulata undulata) showed sexual and seasonal differences in the use of space, with a polygynous mating system similar to an
Population estimates of Houbara Bustard Chlamydotis undulata macqueenii in Punjab, Pakistan, november 1999
Houbara Bustard (Chlamydotis undulata) Science Article 4 abstract Houbara Bustard Chlamydotis undulata macqueenii is reportedly declining rapidly in all the range states and its population believed to be much less now than some 10-12 years ago (Goriup, 1997). Rough estimates of the declining rates from causal observations in different parts of Balochistan indicate a declining […]
Breeding Habitat Selection by the Houbara Bustard Chlamydotis[undulata] macqueenii in Mori, Xinjiang, China
Houbara Bustard (Chlamydotis undulata) Science Article 1 abstract In order to define the features that determine breeding habitat suitability forthe Houbara Bustard (Chlamydotis undulata macqueenii), a study of nest-site selection by this species was carriedout in Mori, Xinjiang, China during the breeding seasons in April-June 1998-2000. Most habitats chosenfor nest sites were open areas with […]
Human activities affect the potential distribution of the Houbara Bustard Chlamydotis undulata undulata
Houbara Bustard (Chlamydotis undulata) Science Article 3 abstract Human activities have been reported to impinge on the distribution of the endangered Houbara Bustard Chlamydotis undulata undulata. The present study intends to investigate spatial relationships between Bustard and pastoral distribution in order to identify avoidance patterns and potential exclusions of the species from still-suitable grounds.The study […]
Modelling nesting habitat preferences of Eurasian Griffon Vulture Gyps fulvus in eastern Iberian Peninsula
Griffon (Gyps fulvus) Science Article 2 abstract To apply modern habitat modelling techniques using generalized linear models approach to generate not only explicative but also predictive habitat suitability models. Ecological factors that could affect the species? nesting habitat preferences at two spatial scales, one referred to the colony as a sampling unit and another trying […]