A new species of shrike (Laniidae: <i>Laniarius</i>) from Somalia, verified by DNA sequence data from the only known individual

Smith, Edmund F. G.; Arctander, Peter; Fjeldså, Jon; Amir, Osman Gedow

doi:10.1111/j.1474-919x.1991.tb04564.x

Cited by 65 publications

(28 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, we determined relationships within the Karoo Lark complex using sequencing of part of the mitochondrial cytochrome b gene as an independent measure of evolutionary relationship. This gene has highly conserved regions which facilitate the use of published sequences of oligonucleotide primers (Kocher et al 1989, Edwards et al 1991, Avise et al 1994 and has a relatively faster rate of evolution than the mtDNA genome as a whole (Irwin et al 1991): it is therefore capable of resolving a variety of questions at the species level (Shields & Helm-Bychowski 1988, Smith et al 1991, Helbig et al 1996. Genetically defined taxa within the Karoo Lark complex were then compared using morphological and male song characters to assess the status of species present in the complex.…”

mentioning

confidence: 99%

Barlow's Lark: a new species in the Karoo LarkCerthilauda albescenscomplex of southwest Africa

Ryan

Hood

Bloomer

et al. 1998

Ibis

View full text Add to dashboard Cite

The Karoo Lark Certhilauda albescens complex, endemic to southwest Africa, is characterized by regional phenotypic variation. Recent consensus has been to recognize two species, Dune Lark Certhilauda erythrochlamys and Karoo Lark Certhilauda albescens, but intermediate forms around the mouth of the Orange River have resulted in some authors treating it as a single polytypic species complex. We reexamined the status of taxa in this group by sequencing a segment of the mitochondrial DNA cytochrome b gene. Most samples were from the area around the mouth of the Orange River, where there is considerable local phenotypic variation. Our results indicate that the complex comprises three species, Karoo Lark, Dune Lark and Barlow's Lark Certhilauda barlowi, separated by 1.9‐5.5% sequence divergence. There were no sequence differences among described subspecies, but there was limited variation among Dune Lark individuals (sequence divergence values 0.2‐0.4%). The Red Lark Certhilauda burra is closely related to the Karoo Lark complex; indeed, it may be that Karoo Lark is the ancestral form. There was morphological (biometrics and plumage) and behavioural (male display song structure) support for the recognition of Barlow's Lark as a separate species. Species ranges within the complex are allopatric or narrowly parapatric, and they occur in different habitats and climatic conditions. Discriminant function analysis correctly identified 99% of skins assigned to taxa based on range, but a few individuals collected in the contact zone between Karoo and Barlow's Larks exhibited intermediate phenotypes, and further investigations are warranted to search for evidence of hybridization. The newly recognized Barlow's Lark has a maximum range of 18,000 km2. It appears to have disappeared from heavily grazed farms around Aus, southern Namibia, and occurs almost exclusively in diamond mining areas, where domestic livestock are excluded. Changes to land use practices which reduce vegetation cover could seriously impact this species.

show abstract

mentioning

confidence: 99%

Barlow's Lark: a new species in the Karoo LarkCerthilauda albescenscomplex of southwest Africa

Ryan

Hood

Bloomer

et al. 1998

Ibis

View full text Add to dashboard Cite

show abstract

“…In lieu of an onomatophore specimen of the new parrot, the authors deposited feathers from the holotype and paratype as vouchers in following Smith et al (1991), per the recommendation of Donegan (2008) and in compliance with Article 72.5.1 of the CODE, which states that a type may be an animal or any part of an animal. Article 16.4.2 of the CODE will be met with the deposition in a secure collection of the extant, caged individuals from whom the feathers were removed upon their death.…”

Section: Methodsmentioning

confidence: 99%

A new parrot taxon from the Yucatán Peninsula, Mexico—its position within genusAmazonabased on morphology and molecular phylogeny

Silva

Guzmán

Urantówka

et al. 2017

PeerJ

View full text Add to dashboard Cite

Parrots (Psittaciformes) are a diverse group of birds which need urgent protection. However, many taxa from this order have an unresolved status, which makes their conservation difficult. One species-rich parrot genus is Amazona, which is widely distributed in the New World. Here we describe a new Amazona form, which is endemic to the Yucatán Peninsula. This parrot is clearly separable from other Amazona species in eleven morphometric characters as well as call and behavior. The clear differences in these features imply that the parrot most likely represents a new species. In contrast to this, the phylogenetic tree based on mitochondrial markers shows that this parrot groups with strong support within A. albifrons from Central America, which would suggest that it is a subspecies of A. albifrons. However, taken together tree topology tests and morphometric analyses, we can conclude that the new parrot represents a recently evolving species, whose taxonomic status should be further confirmed. This lineage diverged from its closest relative about 120,000 years ago and was subjected to accelerated morphological and behavioral changes like some other representatives of the genus Amazona. Our phylogenies, which are so far the most comprehensive for Amazona taxa enabled us to consider the most feasible scenarios about parrot colonization of the Greater and Lesser Antilles and Central America from South America mainland. The molecular dating of these migrations and diversification rate were correlated with climatic and geological events in the last five million years, giving an interesting insight into Amazon parrot phylogeography and their evolution in general.

show abstract

“…these DNA analyses are more likely to be conclusive than are phenotypic comparisons. In fact, the DNA from a unique shrike successfully allowed the recent determination of a new species (Smith et a/. 1991).…”

Section: Nechisar Nightjar Caprimulgus Solalamentioning

confidence: 99%

Sexual dimorphism, plumage variability and species determination in nightjars: the need for further examination of the Nechisar Nightjar Caprimulgus solala

Forero¹,

Tella²

1997

Ibis

View full text Add to dashboard Cite

A new species of shrike (Laniidae: Laniarius) from Somalia, verified by DNA sequence data from the only known individual

Cited by 65 publications

References 14 publications

Barlow's Lark: a new species in the Karoo LarkCerthilauda albescenscomplex of southwest Africa

Barlow's Lark: a new species in the Karoo LarkCerthilauda albescenscomplex of southwest Africa

A new parrot taxon from the Yucatán Peninsula, Mexico—its position within genusAmazonabased on morphology and molecular phylogeny

Sexual dimorphism, plumage variability and species determination in nightjars: the need for further examination of the Nechisar Nightjar Caprimulgus solala

Contact Info

Product

Resources

About