The Journey to the East of Wallace’s Line

2021 ◽  
pp. 174-190
Keyword(s):  
1986 ◽  
Vol 114 (4) ◽  
pp. 513-522 ◽  
Author(s):  
C.M.E.Rowland Payne ◽  
A.C. Branfoot
Keyword(s):  

Science ◽  
2013 ◽  
Vol 342 (6156) ◽  
pp. 321-323 ◽  
Author(s):  
A. Cooper ◽  
C. B. Stringer
Keyword(s):  

2007 ◽  
Vol 3 (3) ◽  
pp. 323-326 ◽  
Author(s):  
Knud A Jønsson ◽  
Jon Fjeldså ◽  
Per G.P Ericson ◽  
Martin Irestedt

Biogeographic connections between Australia and other continents are still poorly understood although the plate tectonics of the Indo-Pacific region is now well described. Eupetes macrocerus is an enigmatic taxon distributed in a small area on the Malay Peninsula and on Sumatra and Borneo. It has generally been associated with Ptilorrhoa in New Guinea on the other side of Wallace's Line, but a relationship with the West African Picathartes has also been suggested. Using three nuclear markers, we demonstrate that Eupetes is the sister taxon of the South African genus Chaetops , and their sister taxon in turn being Picathartes , with a divergence in the Eocene. Thus, this clade is distributed in remote corners of Africa and Asia, which makes the biogeographic history of these birds very intriguing. The most parsimonious explanation would be that they represent a relictual basal group in the Passerida clade established after a long-distance dispersal from the Australo-Papuan region to Africa. Many earlier taxonomic arrangements may have been based on assumptions about relationships with similar-looking forms in the same, or adjacent, biogeographic regions, and revisions with molecular data may uncover such cases of neglect of ancient relictual patterns reflecting past connections between the continents.


Ecography ◽  
2020 ◽  
Vol 43 (9) ◽  
pp. 1329-1340 ◽  
Author(s):  
Harald Letsch ◽  
Michael Balke ◽  
Emmanuel F. A. Toussaint ◽  
Raden Pramesa Narakusumo ◽  
Konrad Fiedler ◽  
...  
Keyword(s):  

1909 ◽  
Vol 28 ◽  
pp. 64-64
Author(s):  
R.C. Archibald

In earlier volumes of the Proceedings of the Edinburgh Mathematical Society (cf. III., 104; IX., 83) it has been shown by researches of Dr. J. S. Mackay that the “discovery of the Wallace line … dates back only to about the year 1799 or 1800.” This result is reproduced in Cantor's Vorlesungen über die Geschichte der Mathematik (III., 542, 2te Aufl.). It was arrived at by considering the two following theorems given by Professor Wallace in the old series of Leybourn's Mathematical Repository:Theorem A (Vol. I., p. 309 ; Vol. II., p. 54–5). If three straight lines touch a parabola, a circle described through their intersections shall pass through the focus of the parabola.


1983 ◽  
Vol 109 (s24) ◽  
pp. 44-44
Author(s):  
J. Lharper ◽  
P.W.M. Copeman
Keyword(s):  

1983 ◽  
Vol 58 (1) ◽  
pp. 119-120
Author(s):  
Allen Keast
Keyword(s):  

2020 ◽  
Vol 69 (6) ◽  
pp. 1039-1051 ◽  
Author(s):  
Damien Esquerré ◽  
Stephen Donnellan ◽  
Ian G Brennan ◽  
Alan R Lemmon ◽  
Emily Moriarty Lemmon ◽  
...  

Abstract Ecological opportunities can be provided to organisms that cross stringent biogeographic barriers towards environments with new ecological niches. Wallace’s and Lyddeker’s lines are arguably the most famous biogeographic barriers, separating the Asian and Australo-Papuan biotas. One of the most ecomorphologically diverse groups of reptiles, the pythons, is distributed across these lines, and are remarkably more diverse in phenotype and ecology east of Lydekker’s line in Australo-Papua. We used an anchored hybrid enrichment approach, with near complete taxon sampling, to extract mitochondrial genomes and 376 nuclear loci to resolve and date their phylogenetic history. Biogeographic reconstruction demonstrates that they originated in Asia around 38-45 Ma and then invaded Australo-Papua around 23 Ma. Australo-Papuan pythons display a sizeable expansion in morphological space, with shifts towards numerous new adaptive optima in head and body shape, coupled with the evolution of new micro-habitat preferences. We provide an updated taxonomy of pythons and our study also demonstrates how ecological opportunity following colonization of novel environments can promote morphological diversification in a formerly ecomorphologically conservative group. [Adaptive radiation; anchored hybrid enrichment; biogeography; morphometrics; snakes.]


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