Results 31 to 40 of about 3,291,041 (253)

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

Frontiers 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, Kaiming Zeng, Yue Deng, Bicai Guan   +3 more
doaj   +1 more source

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

Ecosphere, 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, Tyler Green, James G. C. Heintz, Neil Frakes, Nicolas Graver, Jeff S. Rangitsch, Jane E. Rodgers, Scott Heacox, Cameron W. Barrows   +8 more
doaj   +1 more source

Molecular methods for differentiating Phragmites australis subspecies and identification of hybrid stands in the Upper Midwestern United States

Applications in Plant Sciences, EarlyView.
Abstract Premise In North America, Phragmites australis (common reed) has drawn a great deal of research attention. Non‐native P. australis subsp. australis is a noxious weed that has locally displaced native P. australis subsp. americanus in some areas.
Nicholas P. Tippery, Daniel J. Larkin, Julia Bohnen, Douglas L. Wendell, Neil O. Anderson, Susan M. Galatowitsch, Marie Abbey, Alan G. Smith, Andrzej K. Noyszewski   +8 more
wiley   +1 more source

Reduction in the potential distribution of bee species in low latitudes under different climate change scenarios: conservation implications

Frontiers in Ecology and Evolution
To quantify the climate-change impact on bees and guide conservation planning, we employed ecological niche modeling (ENM) driven by three representative concentration pathways (RCP 4.5, 6.0 and 8.5) and three general circulation models (CCSM4, HadGEM2 ...
Xinggang Tang, Xinggang Tang, Zheng He, Zheng He, Yue Deng, Yue Deng, Yingdan Yuan, Kaiming Zeng, Kaiming Zeng   +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]

PLoS 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, Justin B Runyon, Michael J Jenkins, Andrew D Giunta   +3 more
doaj   +1 more source

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

The 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

Analysis of cultivated land degradation in southern China: diagnostics, drivers, and restoration solutions

Frontiers in Plant Science
IntroductionCultivated land quality degradation is a critical challenge to food security, requiring effective nature-based restoration strategies based on comprehensive assessments of land quality.
Yanqing Liao, Yanqing Liao, Zhihong Yu, Zhihong Yu, Lihua Kuang, Lihua Kuang, Yefeng Jiang, Yefeng Jiang, Chenxi Yu, Chenxi Yu, Weifeng Li, Weifeng Li, Ming Liu, Xi Guo, Xi Guo, Yingcong Ye, Yingcong Ye   +16 more
doaj   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

The Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro, Hugo Bampi, Ana C. Bernardes‐Dias, Lidiane Asevedo, João P. P. Araújo, Matheus R. Arêas, Alessandra S. Machado, Ricardo T. Lopes, Rafael C. Silva, Marina B. Soares, Gustavo R. Oliveira   +10 more
wiley   +1 more source

Changing fire regimes in the Great Basin USA

Ecosphere
Wildfire is a natural disturbance in landscapes of the Western United States, but the effects and extents of fire are changing. Differences between historical and contemporary fire regimes can help identify reasons for observed changes in landscape ...
Eva K. Strand, Kori Blankenship, Corey Gucker, Mark Brunson, Eugénie MontBlanc   +4 more
doaj   +1 more source