نتایج جستجو برای: shrub invasion

تعداد نتایج: 77759  

2015
Richard R. Rodrigues Rosana P. Pineda Jacob N. Barney Erik T. Nilsen John E. Barrett Mark A. Williams Jian Liu

The importance of plant-microbe associations for the invasion of plant species have not been often tested under field conditions. The research sought to determine patterns of change in microbial communities associated with the establishment of invasive plants with different taxonomic and phenetic traits. Three independent locations in Virginia, USA were selected. One site was invaded by a grass...

2015
Adriano Stinca Giovanni Battista Chirico Guido Incerti Giuliano Bonanomi

Ecosystem invasion by non-native, nitrogen-fixing species is a global phenomenon with serious ecological consequences. However, in the Mediterranean basin few studies addressed the impact of invasion by nitrogen-fixing shrubs on soil quality and hydrological properties at local scale, and the possible effects on succession dynamics and ecosystem invasibility by further species. In this multidis...

1999
JOEL R. BROWN STEVE ARCHER

Proliferation of woody plants in grasslands and savannas since the 1800s has been widely documented. In the southwestern United States, increased abundance of honey mesquite (Prosopis glandulosa var. glandulosa) has been attributed to heavy grazing by livestock. Here, we test the hypothesis that P. glandulosa invasion of grasslands requires, first, reductions in herbaceous biomass and density s...

2014
Qiaoying Zhang Yunchun Zhang Shaolin Peng Kristjan Zobel

Plant species show different responses to the elevated temperatures that are resulting from global climate change, depending on their ecological and physiological characteristics. The highly invasive shrub Lantana camara occurs between the latitudes of 35 °N and 35 °S. According to current and future climate scenarios predicted by the CLIMEX model, climatically suitable areas for L. camara are ...

Journal: :Current Biology 2006
Neal T. Sweeney Jay E. Brenman Yuh Nung Jan Fen-Biao Gao

The diversity of neuronal cells, especially in the size and shape of their dendritic and axonal arborizations, is a striking feature of the mature nervous system. Dendritic branching is a complex process, and the underlying signaling mechanisms remain to be further defined at the mechanistic level. Here we report the identification of shrub mutations that increased dendritic branching. Single-c...

2008
Temuulen Tsagaan Sankey Corey Moffet Keith Weber

Much interest lies in long-term recovery rates of sagebrush communities after fire in the western United States, as sagebrush communities comprise millions of hectares of rangelands and are an important wildlife habitat. Little is known about postfire changes in sagebrush canopy cover over time, especially at a landscape scale. We studied postfire recovery of shrub canopy cover in sagebrush-ste...

Journal: :Computers & Graphics 2004
Gerardo Pastor Dégano Miguel Romera Gonzalo Álvarez Fausto Montoya Vitini

Hyperbolic components and Misiurewicz points of the chaotic region of the Mandelbrot set are located in what we call shrubs. Each shrub has two well-differentiated parts. The first one, shrub0; corresponds to the main branch of the shrub. The second one, shrubr; corresponds to all the other branches of the shrub. In this paper, we have focused on the ordering of the hyperbolic components and Mi...

Journal: :Ecological Informatics 2011
C. M. Harris H. L. Stanford C. Edwards Justin M. J. Travis K. J. Park

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Understanding the invasion potential of a species in different habitat types within th...

2017
Tuyet T. A. Truong Giles E. St. J. Hardy Margaret E. Andrew

Invasive weeds are a serious problem worldwide, threatening biodiversity and damaging economies. Modeling potential distributions of invasive weeds can prioritize locations for monitoring and control efforts, increasing management efficiency. Forecasts of invasion risk at regional to continental scales are enabled by readily available downscaled climate surfaces together with an increasing numb...

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