نتایج جستجو برای: pinus

تعداد نتایج: 13226  

Journal: :Journal of environmental biology 2010
Aydin Tufekcioglu Mehmet Kucuk Tuncay Bilmis Lokman Altun Murat Yilmaz

In this study soil properties and root biomass responses to prescribed fire were investigated in 25-30 year-old calabrian pine (Pinus brutia Ten.) stands in Edirne, Turkey. The stands were established by planting and were subjected to prescribed burning in July 2005. Soil respiration rates were determined every two months using the soda-lime method over a two-year period. Fine (> or = 2 mm diam...

2012
Jae-Joon Yoo Ahn-Heum Eom

Fungal endophytes are microfungi that live in plants without causing apparent symptoms of infection. This study was conducted to identify endophytic fungi isolated from leaves of coniferous trees in Bohyeon Mountain of Korea. We collected leaves of two species of coniferous trees, Pinus densiflora and Pinus koraiensis, from 11 sites in the study area. A total 58 isolates were obtained and ident...

2014
John F. Stewart Rodney E. Will Kevin M. Robertson Dana Nelson

Across much of the globe, fire is a major disturbance agent of forest and grassland communities. The removal of fire from previously fire-maintained ecosystems, which has occurred in many areas, changes species composition, favoring later less fire tolerant species over fire-adapted ones. A recent measured increase in the rate of hybridization between the fire-adapted shortleaf pine (Pinus echi...

2005
Tiina Maileena Nieminen Kari Laine Nicholas M. Dickinson

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2012
Walter R. Tschinkel Tyler Murdock Joshua R. King Christina Kwapich

Longleaf pine savannas are one of the most threatened ecosystems in the world, yet are understudied. Ants are a functionally important and diverse group of insects in these ecosystems. It is largely unknown how local patterns of species diversity and composition are determined through the interaction of this dominant animal group with abiotic features of longleaf pine ecosystems. Here we descri...

2016
Don C. Bragg

A major ice storm struck Georgia and the Carolinas in February of 2014, damaging or destroying hundreds of thousands of hectares of timber worth hundreds of millions of dollars. Losses were particularly severe in pine plantations in west-central South Carolina, including many on the Savannah River Site (SRS). An array of paired, mid-rotation loblolly (Pinus taeda L.) and longleaf (Pinus palustr...

2004
M. D. Cain

Three opening sizes (0.25, 0.625, and 1.0 ac) and three site preparation methods (herbicides, mechanical, and an untreated control) were tested in a pine-hardwood stand dominated by loblolly and shortleaf pines ( Pinus taeda L. and P. echinata Mill.) and mixed oaks ( Quercus spp.) that was being converted to uneven-aged structure using group selection. The study was a 3x3 factorial in a randomi...

2016
Sofia Bäcklund Mari Jönsson Joachim Strengbom Andreas Frisch Göran Thor RunGuo Zang

With an increasing demand for forest-based products, there is a growing interest in introducing fast-growing non-native tree species in forest management. Such introductions often have unknown consequences for native forest biodiversity. In this study, we examine epiphytic lichen species richness and species composition on the trunks of non-native Pinus contorta and compare these to the native ...

2005
Susan Cohen Richard Braham Felipe Sanchez

Some of the most species-rich areas and highest concentrations of threatened and endangered species in the southeastern United States are found in wet savanna and flatwood longleaf pine (Pinus palustris Mill.) communities. Where intensive forestry practices have eliminated much of the natural understory of the longleaf ecosystem, the potential for reestablishment through a seed bank may present...

2015
Jennifer M. Fill Jayme L. Waldron Shane M. Welch J. Whitfield Gibbons Stephen H. Bennett Timothy A. Mousseau

UNLABELLED In evaluating conservation and management options for species, practitioners might consider surrogate habitats at multiple scales when estimating available habitat or modeling species' potential distributions based on suitable habitats, especially when native environments are rare. Species' dependence on surrogates likely increases as optimal habitat is degraded and lost due to anthr...

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