Investigating the persistence of a disjunct population of Alaska yellow-cedar in a historically frequent-fire landscape

2021 ◽  
Author(s):  
William D. Downing ◽  
Meg A. Krawchuk ◽  
James D. Johnston ◽  
Andrew G. Merschel ◽  
Joseph H. Rausch ◽  
...  
Keyword(s):  
Disjunct Population

The Pliensbachian ammonite Dayiceras dayiceroides and Early Jurassic paleogeography

1983 ◽  
Vol 20 (1) ◽  
pp. 86-91 ◽  
Author(s):  
Paul L. Smith
Keyword(s):  
British Columbia ◽  
Early Jurassic ◽  
Eastern Pacific ◽  
Western Tethys ◽  
Disjunct Population ◽  
Northeastern Pacific ◽  
Pacific Margin ◽  
Genetic Continuity ◽  
Central Atlantic ◽  
New Occurrences

Uptonia? dayiceroides Mouterde is placed in the genus Dayiceras and its age established as latest Jamesoni Zone to possibly earliest Domerian. The species is abundant and associated with faunas of Tethyan aspect along the northeastern Pacific margin. First occurrences in Oregon and Nevada and new occurrences in British Columbia are reported. Localities at apparently high paleolatitudes are attributed to post-early Pliensbachian transcurrent fault displacements. Genetic continuity with a disjunct population in Portugal is postulated via a central Atlantic seaway, here named the Hispanic Corridor, connecting the eastern Pacific and western Tethys Oceans. The existence of this corridor during the Pliensbachian is supported by several lines of independent paleobiogeographic evidence.

Taxonomy, typification and karyology of Crepis lacera (Asteraceae)

Phytotaxa ◽  
2015 ◽  
Vol 208 (1) ◽  
pp. 45 ◽  
Author(s):  
Francesco Roma Marzio ◽  
Giovanni Astuti ◽  
Lorenzo Peruzzi
Keyword(s):  
Leaf Morphology ◽  
Diploid Species ◽  
Distribution Map ◽  
Basal Leaf ◽  
Disjunct Population ◽  
Main Distinguishing Feature

Crepis lacera is a diploid species (2n = 8), mostly occurring in Italy, with a disjunct population in Albania. The names C. lacera, C. latialis and C. lacera f. titani are here lectotypified, and their taxonomic value is discussed. For the latter name, based on morphological, biogeographical and karyological results, we propose here the subspecific rank (C. lacera subsp. titani stat. nov.). In addition, basal leaf morphology variation, the main distinguishing feature between the two subspecies, is discussed in the light of paedomorphosis, and a distribution map for both subspecies is presented.

scholarly journals Ecological history of a long-lived conifer in a disjunct population

2017 ◽  
Vol 106 (1) ◽  
pp. 319-332 ◽  
Author(s):  
Erin M. Herring ◽  
Daniel G. Gavin ◽  
Solomon Z. Dobrowski ◽  
Matias Fernandez ◽  
Feng Sheng Hu
Keyword(s):  
Ecological History ◽  
Disjunct Population ◽  
History Of

scholarly journals Filling gaps in the disjunct distribution of Rhinoclemmys punctularia (Daudin, 1801) (Testudines: Geoemydidae) and first record from Bahia state, northeast Brazil

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1951
Author(s):  
Marcele Farias Do Valle ◽  
Ricardo Marques ◽  
Moacir Santos Tinôco
Keyword(s):  
First Record ◽  
The State ◽  
Disjunct Distribution ◽  
Southeastern Brazil ◽  
North Coast ◽  
Northeast Brazil ◽  
Southern Population ◽  
Disjunct Population ◽  
The North ◽  
Rivers And Lakes

Rhinoclemmys punctularia (Daudin, 1801) inhabits rivers and lakes primarily in the Amazon region, with a disjunct population in southeastern Brazil. Herein we present the second record of R. punctularia from the Atlantic rainforest and the first from the state of Bahia, northeast Brazil. We recorded four specimens over a decade in different habitats from the north coast of Bahia. Our records fill distribution gaps of 980 km from the northern record in Maranhão and 1,130 km from the southern population.

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