Genetic and Morphometric Differentiation in Introduced Populations of Common Chaffinches (Fringilla coelebs) in New Zealand

The Condor ◽  
1990 ◽  
Vol 92 (1) ◽  
pp. 76-88 ◽  
Author(s):  
Allan J. Baker ◽  
Mark K. Peck ◽  
Margaret A. Goldsmith
Keyword(s):  
New Zealand ◽  
Fringilla Coelebs ◽  
Introduced Populations ◽  
Morphometric Differentiation

Mechanisms of song differentiation in introduced populations of Chaffinches Fringilla coelebs in New Zealand

Ibis ◽  
2008 ◽  
Vol 126 (4) ◽  
pp. 510-524 ◽  
Author(s):  
Peter F. Jenkins ◽  
Allan J. Baker
Keyword(s):  
New Zealand ◽  
Fringilla Coelebs ◽  
Introduced Populations

scholarly journals Invasion but not hybridisation is associated with ecological niche shift in monkeyflowers

2019 ◽  
Author(s):  
Daniele Da Re ◽  
Angel P. Olivares ◽  
William Smith ◽  
Mario Vallejo-Marín
Keyword(s):  
New Zealand ◽  
Ecological Niche ◽  
Secondary Contact ◽  
Niche Shift ◽  
Ecological Niches ◽  
Introduced Populations ◽  
Niche Dynamics ◽  
Introduced Range ◽  
Niche Shifts ◽  
Native And Introduced Ranges

AbstractBackgroundThe ecological niche occupied by novel hybrids can influence their establishment as well as the potential to coexist with their parents. Hybridisation generates new phenotypic combinations, which, in some cases, may allow them to occupy ecological niches outside the environmental envelope of parental taxa. In other cases, hybrids may retain similar ecological niches to their parents, resulting in competition and affecting their coexistence. To date, few studies have quantitatively assessed niche shifts associated with hybridisation in recently introduced populations while simultaneously characterising the niche of parental species in both native and introduced ranges.AimsIn this study, we compared the ecological niche of a novel hybrid plant with the niches of its two parental taxa in the non-native geographic range. We also characterised and compared the parental taxa’s ecological niche of native and introduced populations in order to assess potential niche changes during the invasion process independent of hybridisation.MethodsWe studied monkeyflowers (Mimulus spp., Phrymaceae) that were introduced from the Americas to Europe and New Zealand in the last 200 years. We focused on a novel hybrid, triploid, asexual taxon (M. × robertsii) that occurs only in the British Isles where its two parents (M. guttatus and M. luteus) come into secondary contact. We assembled more than 12,000 geo-referenced occurrence records and eight environmental variables of the three taxa across native and introduced ranges, and conducted ecological niche model analysis using maximum entropy, principal component and niche dynamics analysis.ResultsWe found no evidence of niche shift in the hybrid, M. × robertsii compared to introduced populations of both of their parental taxa. The hybrid had a niche more similar to M. luteus, which is also the rarest of the parental taxa on the introduced range. Among parental monkeyflowers, M. guttatus showed niche conservatism in introduced populations in Europe, but a niche shift in New Zealand, while M. luteus showed a niche shift in Europe. However, the evidence of niche shift should be treated with caution due to the occurence of non-analog climatic conditions, small population size and unfilling niche dynamics.ConclusionsOur results suggest that hybridisation in non-native monkyeflowers did not result in a shift in ecological niche. This niche conservation could create competition between parental and derived taxa, the outcome of which will depend on relative competitive abilities. Further work is needed to establish if the expansion of the hybrid in the introduced range is causally related to the apparent rarity of one of the parents (M.luteus). Finally, the comparison of native and non-native populations of parental taxa, suggest that whether invasions result in niche shifts or not depends on both taxon and geographic region, highlighting the idiosyncratic nature of biological invasions.

Genetic and Morphometric Divergence in Ancestral European and Descendent New Zealand Populations of Chaffinches (Fringilla coelebs)

Evolution ◽  
1992 ◽  
Vol 46 (6) ◽  
pp. 1784 ◽  
Author(s):  
Allan J. Baker
Keyword(s):  
New Zealand ◽  
Fringilla Coelebs

Morphometric Differentiation in New Zealand Populations of the House Sparrow (Passer domesticus)

Evolution ◽  
1980 ◽  
Vol 34 (4) ◽  
pp. 638 ◽  
Author(s):  
Allan J. Baker
Keyword(s):  
New Zealand ◽  
House Sparrow ◽  
Passer Domesticus ◽  
Morphometric Differentiation

Genetic variation in native and introduced populations of the 'New Zealand flatworm', Arthurdendyus triangulatus

2001 ◽  
Vol 139 (2) ◽  
pp. 165-174 ◽  
Author(s):  
C DYNES ◽  
C C FLEMING ◽  
A K MURCHIE
Keyword(s):  
Genetic Variation ◽  
New Zealand ◽  
Introduced Populations ◽  
Arthurdendyus Triangulatus

scholarly journals Using adaptive management to determine requirements of re-introduced populations: the case of the New Zealand hihi

2007 ◽  
Vol 44 (5) ◽  
pp. 953-962 ◽  
Author(s):  
DOUG P. ARMSTRONG ◽  
ISABEL CASTRO ◽  
RICHARD GRIFFITHS
Keyword(s):  
New Zealand ◽  
Adaptive Management ◽  
Introduced Populations

scholarly journals The genomic ancestry, landscape genetics, and invasion history of introduced mice in New Zealand

2017 ◽  
Author(s):  
Andrew J. Veale ◽  
James C. Russell ◽  
Carolyn M. King
Keyword(s):  
New Zealand ◽  
Invasion History ◽  
The South ◽  
The North ◽  
Introduced Populations ◽  
Genomic Study ◽  
History Of ◽  
Upper South ◽  
Two Populations ◽  
Genomic Basis

1.SummaryThe house mouse (Mus musculus) provides a fascinating system for studying both the genomic basis of reproductive isolation, and the patterns of human-mediated dispersal. New Zealand has a complex history of mouse invasions, and the living descendants of these invaders have genetic ancestry from all three subspecies, although most are primarily descended from M. m. domesticus. We used the GigaMUGA genotyping array (~135,000 loci) to describe the genomic ancestry of 161 mice, sampled from 34 locations from across New Zealand (and one Australian city - Sydney). Of these, two populations, one in the south of the South Island, and one on Chatham Island, showed complete mitochondrial lineage capture, featuring two different lineages of M. m. castaneus mitochondrial DNA but with only M. m. domesticus nuclear ancestry detectable. Mice in the northern and southern parts of the North Island had small traces (~2-3%) of M. m. castaneus nuclear ancestry, and mice in the upper South Island had ~7-8% M. m. musculus nuclear ancestry including some Y-chromosomal ancestry – though no detectable M. m. musculus mitochondrial ancestry. This is the most thorough genomic study of introduced populations of house mice yet conducted, and will have relevance to studies of the isolation mechanisms separating subspecies of mice.

Sign in / Sign up

Export Citation Format

Share Document