Results 31 to 40 of about 512,866 (300)

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

open access: yesThe Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou   +3 more
wiley   +1 more source

Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA

open access: yesArctic, Antarctic, and Alpine Research, 2019
We present the first comprehensive inventory and analysis of rock glaciers in the hydrographic Great Basin (GB), United States, documenting 842 features (mean 9.9 ha; range 0.1–201 ha) across thirty-two mountain ranges.
Constance I. Millar, Robert D. Westfall
doaj   +1 more source

On Track? Ensuring the Resilience of the Great Lakes Compact [PDF]

open access: yes, 2013
The Great Lakes hold about 20 percent of the world's available surface freshwater, and 84 percent of North America's surface freshwater. As a resource, the lakes and their tributaries are invaluable -- providing drinking water for 40 million people and ...

core  

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

Effects of landscape characteristics on genetic structure and gene flow of Camellia chekiangoleosa at Laohunao Nature Reserve

open access: yesFrontiers in Plant Science
Understanding how landscape features influence gene flow in natural populations is a central goal of landscape genetics. In this study, we evaluated the status of multiple populations of Camellia chekiangoleosa—a provincially protected plant in Jiangxi ...
Zheng He   +3 more
doaj   +1 more source

Distribution, climatic relationships, and status of American pikas (Ochotona princeps) in the Great Basin, USA

open access: yesArctic, Antarctic, and Alpine Research, 2018
To advance understanding of the distribution, climatic relationships, and status of American pikas (Ochotona princeps) in the Great Basin, United States, we compiled 2,387 records of extant pika sites surveyed since 2005, 89 records of documented ...
Constance I. Millar   +6 more
doaj   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

Congruence between future distribution models and empirical data for an iconic species at Joshua Tree National Park

open access: yesEcosphere, 2019
U.S. national parks protect a natural heritage of global significance; those parks, especially those in the arid southwest, are threatened by climate change.
Lynn C. Sweet   +8 more
doaj   +1 more source

Mountain Pine Beetles Use Volatile Cues to Locate Host Limber Pine and Avoid Non-Host Great Basin Bristlecone Pine. [PDF]

open access: yesPLoS ONE, 2015
The tree-killing mountain pine beetle (Dendroctonus ponderosae Hopkins) is an important disturbance agent of western North American forests and recent outbreaks have affected tens of millions of hectares of trees. Most western North American pines (Pinus
Curtis A Gray   +3 more
doaj   +1 more source

Masticophis taeniatus [PDF]

open access: yes, 1996
Number of Pages: 6Integrative BiologyGeological ...
Camper, Jeffrey D.
core   +1 more source

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