Search the Article Database:

Search our library of articles, papers and other published materials. You can use keywords or boolean-style search:

Foraging ecologies of giraffe (Giraffa camelopardalis reticulata) and camels (Camelus dromedarius) in northern Kenya: effects of habitat structure and possibilities for competition?

The foraging ecologies of reticulated giraffe (Giraffa camelopardalis reticulata) and domestic camels (Camelus dromedarius) were examined in the Laikipia District of Kenya, where these species have recently become sympatric. Camels increased popularity in the region has lead to concerns about their environmental impacts and possible competition with wild giraffe for resources. We gathered foraging data on both species using 2-min group scans that recorded feeding heights and plant food preferences. Transects sampled the vegetation in areas where foraging observations were

View Details + Download

The digestive morphophysiology of wild, free-living, giraffes

We have measured rumen-complex (rumen, reticulum, omasum, abomasum) and intestine (small and large combined) mass in 32 wild giraffes of both sexes with body masses ranging from 289 to 1441 kg, and parotid gland mass, tongue length and mass, masseter and mandible mass in 9 other giraffes ranging in body mass from 181 to 1396 kg. We have estimated metabolic and energy production rates, feed intake and home range size. Interspecific analysis of mature ruminants show that components of the

View Details + Download

Home ranges, seasonal ranges and daily movements of giraffe (Giraffa camelopardalis giraffa) in northern Botswana

Introduction: Movement studies have been conducted on various giraffe subspecies across different ecological and management environments in Africa. However, prior to recent advancements in technology, studies were limited to identification methods relying on chance encounters of individuals (e.g. Foster, 1966; Berry, 1978; le Pendu & Ciofolo, 1999) and VHF radio-tracking (e.g. Langman, 1973; Dagg & Foster, 1982), which can underestimate movements (Fennessy, 2009). Now, GPS satellite units enable remote monitoring of movements with the increased ability to collect more accurate

View Details + Download

Giraffe and Okapi: Africa’s forgotten megafauna

The Giraffidae family includes only two living species of ungulates: the giraffe (Giraffa camelopardalis) and the okapi (Okapia johnstoni), both restricted to the African continent. Taxonomically, the Giraffa and Okapia genera separated from each other approximately 16 million years ago (Hassanin et al., 2012), and they now exhibit as many differences as similarities. Today Okapia is represented by one species (Okapia johnstoni; Hart, 2013), though with surprisingly high genetic variation (Stanton et al., 2014), whereas nine subspecies of giraffe are

View Details + Download

Leadership of herd progressions in the Thornicroft’s giraffe of Zambia

In cohesive social groups, travel progressions are often led by dominant or older individuals, but the leadership traits of individuals residing in flexible social systems are poorly known. Giraffe reside in herds characterized by fission– fusion dynamics frequently mediated by kinship. We analyzed 41 years (1971–2012) of longitudinal data collected from a community of Thornicroft’s giraffe (Giraffa camelopardalis thornicrofti) living around South Luangwa National Park, Zambia, to assess the characteristics of herd leaders. Movement of giraffe in a single file

View Details + Download

Giraffe birth locations in the South Luangwa National Park, Zambia: site fidelity or microhabitat selection?

Birth site location can have enormous implications for female reproductive success. Some ungulate species demonstrate consistent birth site fidelity, while others shift birth locations during their lifetimes as a function of ecological and social factors. We plotted 39 years of birth records from a wild population of Thornicroft’s giraffe, Giraffa camelopardalis thornicrofti, to test the hypothesis that giraffe use consistent locations for birth. Data from 29 calves born to nine females revealed that birth seasonality was absent and that ecological

View Details + Download

Gazing at a giraffe gyroscope: where are we going?

Giraffe are popular animals to watch while on wildlife safaris, and feature prominently in zoos, advertisements, toys and cartoons. Yet, until recently, few field studies have focused on giraffe. We introduce this giraffe topic issue with a review essay that explores five primary questions: How many (sub) species of giraffe exist? What are the dynamics of giraffe herds? How do giraffe communicate? What is the role of sexual selection in giraffe reproduction? How many giraffe reside in Africa? A confluence

View Details + Download

Nocturnal “humming” vocalizations: adding a piece to the puzzle of giraffe vocal communication

Background: Recent research reveals that giraffes (Giraffa camelopardalis sp.) exhibit a socially structured, fission– fusion system. In other species possessing this kind of society, information exchange is important and vocal communication is usually well developed. But is this true for giraffes? Giraffes are known to produce sounds, but there is no evidence that they use vocalizations for communication. Reports on giraffe vocalizations are mainly anecdotal and the missing acoustic descriptions make it difficult to establish a call nomenclature. Despite inconclusive

View Details + Download

Analysis of Angolan Giraffe (Giraffa camelopardalis angolensis) Post-Translocation Movement Patterns and Implications for Conservation Management in Namibia

Wildlife translocation is a conservation management strategy that has been employed to bolster many diminishing wild animal populations. Giraffe translocations are currently being conducted in Africa, but the consequences of such remain largely unknown. In Namibia, translocations are conducted to re-establish locally extirpated populations or to recover vulnerable ones in and around communal conservancies. This study analyzed the movement patterns of six Angolan giraffes in Namibia post-translocation in three regions. Four of the six giraffes appeared to establish home ranges,

View Details + Download
© All articles are copyrighted to the original authors/publishers unless otherwise stated. Any PDF files provided by the GRC are for personal use only and may not be reproduced. The files reflect the holdings of the GRC library and only contain pages relevant to giraffe study, and may not be complete. Users are obliged to follow all copyright restrictions.

Privacy Policy Cookie Policy