Temat: sympatry - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Gammarus (Amphipoda) species competitive exclusion or coexistence as a result of climate change in the Arctic?
Autorzy:: Węsławski, Jan Marcin
Legeżyńska, Joanna
Kotwicki, Lech
Mazurkiewicz, Mikołaj
Olenin, Sergej
Powiązania:: https://bibliotekanauki.pl/articles/2041719.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Svalbard
Peracarida
congeneric species
sympatry
climate change
Źródło:: Polish Polar Research; 2021, 42, 4; 287-302
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Osteology of the Late Cretaceous alvarezsauroid Linhenykus monodactylus from China and comments on alvarezsauroid biogeography
Autorzy:: Xu, X.
Upchurch, P.
Ma, Q.
Pittman, M.
Choiniere, J.
Sullivan, C.
Hone, D.W.E.
Tan, Q.
Tan, L.
Xiao, D.
Han, F.
Powiązania:: https://bibliotekanauki.pl/articles/20629.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: osteology
Cretaceous
Late Cretaceous
alvarezsauroid
Linhenykus monodactylus
China
biogeography
Dinosauria
Theropoda
Parvicursorinae
Treefitte
dispersal
vicariance
sympatry
Wulansuhai Formation
Inner Mongolia
Opis:: The alvarezsauroid theropod Linhenykus monodactylus from the Upper Cretaceous of Inner Mongolia, China is the first knownmonodactyl non−avian dinosaur, providing important information on the complex patterns of manual evolution seen in alvarezsauroids. Herewe provide a detailed description of the osteology of this taxon. Linhenykus shows a number of fea− tures that are transitional between parvicursorine and non−parvicursorine alvarezsauroids, but detailed comparisons also re− veal that some characters had a more complex distribution. We also use event−based tree−fitting to perform a quantitative analysis of alvarezsauroid biogeography incorporating several recently discovered taxa. The results suggest that there is no statistical support for previous biogeographic hypotheses that favour pure vicariance or pure dispersal scenarios as explana− tions for the distributions of alvarezsauroids across SouthAmerica, NorthAmerica andAsia. Instead, statistically significant biogeographic reconstructions suggest a dominant role for sympatric (or “within area”) events, combined with a mix of vicariance, dispersal and regional extinction. At present the alvarezsauroid data set is too small to completely resolve the biogeographic history of this group: future studies will need to create larger data sets that encompass additional clades.
Źródło:: Acta Palaeontologica Polonica; 2013, 58, 1
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: East-Siberian coregonid fishes: their occurrence, evolution and present status
Autorzy:: Yakhnenko, V. M.
Mamontov, A. M.
Luczynski, M.
Powiązania:: https://bibliotekanauki.pl/articles/363220.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: system wodny
zlodowacenie
aktywność tektoniczna
jezioro
pochodzenie
coregonidy
specjacja
sympatryczność
allopatry
coregonids
glaciation
origin of lakes
speciation
sympatry
tectonic activity
water systems
Opis:: Coregonid fishes (coregonids) (Salmonidae, Coregoninae) of Siberia show immense morphological and ecological variability, what is reflected in their complex interspecific and intraspecific structure: i.e. occurrence of numerous species, forms and endemic species. Studies of the coregonids of Siberia is crucially important for understanding of their origin, taxonomy and evolution. We have analysed electrophoretically some 13 enzyme systems from over 20 samples of East-Siberian coregonids. This paper was intended as an introduction to a number of primary papers that are planned that will describe the biological and genetic characteristics of studied populations.
Źródło:: Environmental Biotechnology; 2008, 4, 2; 41-53
1734-4964
Pojawia się w:: Environmental Biotechnology
Dostawca treści:: Biblioteka Nauki

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