Results 41 to 50 of about 35,428 (239)

When wolves aren't enough: revisiting trophic cascades in northern Wisconsin

Oikos, EarlyView.
Elimination of top predators has allowed large herbivores to flourish in many terrestrial ecosystems, transforming food webs and ecosystem functions. Restoration of large predator communities is hoped to reverse negative effects of this trophic downgrading, but evidence for such effects is elusive.
Elaine M. Brice, Donald M. Waller, Jennifer L. Price Tack, Daniel J. Storm, David A. Rogers, Sarah E. Johnson, Bernd Blossey   +6 more
wiley   +1 more source

Seasonal Vascular Tissue Formation in Four Boreal Tree Species With a Focus on Callose Deposition in the Phloem

Frontiers in Forests and Global Change, 2019
We studied the seasonal dynamics of xylem and phloem formation in four boreal tree species that differed in leaf phenology (evergreen vs. winter-deciduous) and wood anatomy (angiosperms vs. gymnosperms).
David Montwé, Uwe Hacke, Stefan G. Schreiber, Stefan G. Schreiber, Ryan C. Stanfield   +4 more
doaj   +1 more source

Between birch and berries: seasonal dietary niche partitioning among sympatric alpine herbivorous birds

Oikos, EarlyView.
Niche partitioning is important for the coexistence of closely related species, allowing species to reduce overlap in resource use despite shared ecological requirements. In alpine environments, harsh climatic conditions and low habitat complexity constrain opportunities for ecological segregation, making seasonal resource fluctuation especially ...
Saria Sato‐Bajracharya, Rakel Blaalid, Jan Eivind Østnes, Oddmund Kleven, Marie Davey, Elise W. Ingvaldsen, Erlend B. Nilsen   +6 more
wiley   +1 more source

Identification of the xyloglucan endotransglycosylase/hydrolase genes and the role of PagXTH12 in drought resistance in poplar

Forestry Research
The xyloglucan endotransglycosylase/hydrolase (XTH) gene family plays a crucial role in plant cell wall remodeling, facilitating growth and structural changes.
Wenya Yuan, Fengge Yao, Yijing Liu, Hongci Xiao, Siheng Sun, Cheng Jiang, Yi An, Ningning Chen, Lichao Huang, Mengzhu Lu, Jin Zhang   +10 more
doaj   +1 more source

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

A protocol for identifying universal reference genes within a genus based on RNA-Seq data: a case study of poplar stem gene expression

Forestry Research
Real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) plays a crucial role in relative gene expression analysis, and accurate normalization relies on suitable reference genes (RGs).
Qi Xie, Umair Ahmed, Cheng Qi, Kebing Du, Jie Luo, Pengcheng Wang, Bo Zheng, Xueping Shi   +7 more
doaj   +1 more source

Tracing change in the public perception of plants: insights from archives and social media in China

PLANTS, PEOPLE, PLANET, EarlyView.
As urbanization accelerates, historic gardens serve as vital cultural treasures that offer spiritual and cultural support to the public. This study proposes an innovative approach that merges historical records from the Qing Dynasty with contemporary social media data to explore changes in public perceptions of these gardens.
Dong Xu, Pei‐yan Wang, Ya‐nan Li, Nan Hu, Yun‐yuan Li   +4 more
wiley   +1 more source

Ectopic expression of TTP gene from human in poplar promotes xylem differentiation and confers plant drought tolerance

Forestry Research
The CCCH zinc finger proteins play critical roles in a wide variety of growth, development, and stress responses. Currently, limited reports are available about the roles of animal CCCH proteins in plants.
Yamei Zhuang, Yang Chen, Qiao Wang, Yan Chen, Liping Yan, Shengjun Li, Gongke Zhou, Guohua Chai   +7 more
doaj   +1 more source

Testing optimal defense theory: Root resistance selection in chicory (Cichorium intybus) reduces foliar defense and alters aphid performance and feeding behavior

Pest Management Science, EarlyView.
Root‐focused resistance in chicory reduces defenses in leaves, impairing root aphids but enhancing foliar aphid performance. Selecting root resistance can create unintended trade‐offs across plant organs. Abstract BACKGROUND Plants are constantly exposed to a wide range of herbivores at both aboveground (AG) and belowground (BG) levels, involving ...
Thomas Cochenille, Clément Baracchini, Géraldine Doury, Audrey Six, Kévin Tougeron, Arnaud Ameline   +5 more
wiley   +1 more source

ارزیابی تناسب سرزمین برای کاشت صنوبر [PDF]

مجله جنگل ایران
مقدمه: با توجه به اجرای طرح استراحت جنگل‌های شمال کشور، تلاش‌ها برای افزایش تولید چوب در کشور با استفاده از درختان تندرشد مورد توجه قرار گرفته و تشویق مالکان اراضی برای کشت این درختان افزایش یافته است. صنوبرها به‌سبب ویژگی‌های بسیار ممتاز، همواره در میان
حمیدرضا عباسی, فرهاد خاکساریان, رضا باقری, آزاده صالحی, فرهاد اسدی   +4 more
doaj   +1 more source