Conservation genetics of an isolated giraffe population in Swaziland
Giraffe (Giraffa camelopardalis) are a critical component of the savannah’s browsing guild (Birkett, 2002), although their distribution is discontinuous and the species has declined over most of the range (Fennessy, 2008). Often confined to protected areas, management of the giraffes has increasingly focused on maintaining small, closed populations including private lands or conservation areas (Brenneman […]
How many species of giraffe are there?
In a recent paper in Current Biology, Fennessy and colleagues [1] conclude that there are four species of giraffe and that their numbers are declining in Africa. Giraffes (Giraffa camelopardalis) are presently classifi ed as one species, with nine subspecies, which are considered ‘Vulnerable’ on the IUCN Red List [2]. The present consensus of one […]
Response to “How many species of giraffe are there?”
It is not unexpected that a proposal, such as ours [1], of four new mammalian species stirs up controversy, as evident in the correspondence by Bercovitch et al. [2]. We appreciate that their concerns are unrelated to the quality of the genetic data, the methodological approach or analyses, but are focused on the interpretation. Thus, […]
Characterization of 16 microsatellite marker loci in the Maasai giraffe (Giraffa camelopardalis tippelskirchi)
Sixteen polymorphic microsatellite markers with an average allele size of k = 4.3 are identified from a genomic plasmid library constructed for giraffe (Giraffa camelopardalis ssp.). Primer sequences and marker data are reported in tabular form. The markers were screened in a population of 25 Maasai giraffe (G. c. tippelskirchi) collected near the Athi River, […]
Species assignment and conservation genetics of giraffe in the Republic of Malawi
Historically, giraffe have been translocated across Africa to supplement extant populations, reintroduce extinct populations or to establish new populations, often for conservation and tourism. Such faunal relocations were often carried out disregarding taxonomic affiliation. Today, the small giraffe populations in the Republic of Malawi are assumed to consist of South African giraffe (Giraffa giraffa giraffa), […]
Development of 11 microsatellite markers for Giraffa camelopardalis through 454 pyrosequencing, with primer options for an additional 458 microsatellites
Many wild giraffe populations are declining across Africa, with two subspecies listed by the IUCN as Endangered in the past 4 years. We developed 11 microsatellite markers from Giraffa camelopardalis angolensis in Etosha National Park, Namibia using 454 sequencing. In 70 individuals, the loci showed 2–4 alleles per locus and expected heterozygosities of 0.082–0.711. There were […]
Extensive population genetic structure in the giraffe
Background: A central question in the evolutionary diversification of large, widespread, mobile mammals is how substantial differentiation can arise, particularly in the absence of topographic or habitat barriers to dispersal. All extant giraffes (Giraffa camelopardalis) are currently considered to represent a single species classified into multiple subspecies. However, geographic variation in traits such as pelage […]
Characterization of eight polymorphic loci for Maasai giraffe (Giraffa camelopardalis tippelskirchi) using non-invasive genetic samples
We used Illumina sequencing to develop eight novel microsatellite loci for Maasai giraffe (Giraffa camelopardalis tippelskirchi), and screened them using fecal DNA. Genetic diversity was assessed for 40 individuals from the Katavi National Park/Rukwa Game Reserve ecosystem in Tanzania. The number of alleles per locus ranged from 2 to 14 (mean = 6.2) and mean […]