Results 21 to 30 of about 3,071 (230)

Genetic structure and demographic inference of the regular sea urchin Sterechinus neumayeri (Meissner, 1900) in the Southern Ocean: The role of the last glaciation. [PDF]

open access: yesPLoS ONE, 2018
One of the most relevant characteristics of the extant Southern Ocean fauna is its resiliency to survive glacial processes of the Quaternary. These climatic events produced catastrophic habitat reductions and forced some marine benthic species to move ...
Angie Díaz   +7 more
doaj   +1 more source

An Arctic refugium under assault [PDF]

open access: yesCurrent Biology, 2013
SummaryDue to their special geographic circumstances, some places on earth are resistant to global warming. But a new study of an arctic refugium suggests it’s only a matter of time before climate change breaches the defenses. Cyrus Martin reports.
openaire   +2 more sources

Scientific basis for predicting the spread of pests

open access: yesКарантин і захист рослин
Goal. To analyze the existing theories of mass reproduction of insects, to evaluate and test the established and newest methods of monitoring and prospects for their use in modern conditions of pest spread. Methods.
A. Fedorenko   +4 more
doaj   +1 more source

Molecular markers reveal limited population genetic structure in a North American corvid, Clark's nutcracker (Nucifraga columbiana). [PDF]

open access: yesPLoS ONE, 2013
The genetic impact of barriers and Pleistocene glaciations on high latitude resident species has not been widely investigated. The Clark's nutcracker is an endemic North American corvid closely associated with Pinus-dominated forests.
Kimberly M Dohms, Theresa M Burg
doaj   +1 more source

Recent remarkable records reveal that Phia Oac-Phia Den Nature Reserve is a priority area for bat conservation in Northern Vietnam

open access: yesJournal of Asia-Pacific Biodiversity, 2016
Three short field surveys were conducted in the Phia Oac-Phia Den Nature Reserve to assess the species diversity and endemism of local bat fauna. In combination with data from a previous study, 24 bat species of 5 families, representing > 20% of the ...
Vuong Tan Tu   +6 more
doaj   +1 more source

Continental Refugium in the Mongolian Plateau during Quaternary Glacial Oscillations: Phylogeography and Niche Modelling of the Endemic Desert Hamster, Phodopus roborovskii. [PDF]

open access: yesPLoS ONE, 2016
The Mongolian Plateau (MP), which is situated in the interior of Asia and possesses a typical continental climate, experienced harsh climatic conditions during the Quaternary glacial fluctuations.
Xue Lv   +6 more
doaj   +1 more source

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian   +9 more
wiley   +1 more source

First record of Parasyrphus malinellus (Collin, 1952) (Diptera: Syrphidae) in Romania at low altitude in the Danube Gorge

open access: yesStudia Universitatis Babeș-Bolyai. Biologia
Hoverflies (Diptera: Syrphidae) represent an ecologically important group of pollinating insects. Of these, Parasyrphus malinellus (Collin, 1952) is a Palaearctic species, mainly distributed in northern Europe.
Amalia-Raluca DUMBRAVĂ   +3 more
doaj   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

open access: yesThe Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield   +2 more
wiley   +1 more source

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