نتایج جستجو برای: nurse plant palatable species

تعداد نتایج: 901828  

2015
Amartuvshin Narantsetseg Sinkyu Kang Dongwook Ko

Wells in grasslands are usually accompanied with increased traffic by humans and livestock. The purpose of this study was to detect whether plant community structure differs in spatial arrangement with different grazing gradients in the desert steppe of Mongolia. We found poor correlation between total coverage and distance-to-well in bigshrub and shrub-limited sites but strong correlation in t...

Journal: :The Journal of animal ecology 2016
Zhishu Xiao Zhibin Zhang

It is well known that direct effects of seed predators or dispersers can have strong effects on seedling establishment. However, we have limited knowledge about the indirect species interactions between seeds of different species that are mediated by shared seed predators and/or dispersers and their consequences for plant demography and diversity. Because scatter-hoarding rodents as seed disper...

2012

The purpose of this investigation was to find patterns (if any) that exist when comparing the dominant plant organisms atop nurse logs in two 12’x13’ quadrats along the Marsh Loop and Suspension Bridge trails at IslandWood. The intent of this investigation was to elucidate why certain plants grow on decaying wood. Two locations were chosen in the temperate second-growth forest at IslandWood. Tw...

Journal: :Ecology letters 2014
Lohengrin A Cavieres Rob W Brooker Bradley J Butterfield Bradley J Cook Zaal Kikvidze Christopher J Lortie Richard Michalet Francisco I Pugnaire Christian Schöb Sa Xiao Fabien Anthelme Robert G Björk Katharine J M Dickinson Brittany H Cranston Rosario Gavilán Alba Gutiérrez-Girón Robert Kanka Jean-Paul Maalouf Alan F Mark Jalil Noroozi Rabindra Parajuli Gareth K Phoenix Anya M Reid Wendy M Ridenour Christian Rixen Sonja Wipf Liang Zhao Adrián Escudero Benjamin F Zaitchik Emanuele Lingua Erik T Aschehoug Ragan M Callaway

Interactions among species determine local-scale diversity, but local interactions are thought to have minor effects at larger scales. However, quantitative comparisons of the importance of biotic interactions relative to other drivers are rarely made at larger scales. Using a data set spanning 78 sites and five continents, we assessed the relative importance of biotic interactions and climate ...

Journal: :Agriculture and Human Values 2020

2017
Andrea P Loayza Marisol A Herrera-Madariaga Danny E Carvajal Patricio García-Guzmán Francisco A Squeo

Harsh environmental conditions in arid ecosystems limit seedling recruitment to microhabitats under nurse structures, such as shrubs or rocks. These structures, however, do not necessarily afford the same benefits to plants because nurse rocks provide only physical nurse effects, whereas nurse plants can provide both physical and biological nurse effects. Nevertheless, if the nurse plant is a c...

Journal: :Oikos 2012
Santiago Soliveres Rubén Torices Fernando T Maestre

Positive and negative plant-plant interactions are major processes shaping plant communities. They are affected by environmental conditions and evolutionary relationships among the interacting plants. However, the generality of these factors as drivers of pairwise plant interactions and their combined effects remain virtually unknown. We conducted an observational study to assess how environmen...

Jamshid Khatir Namany Morteza Akbarzadeh, Seyyed Ali Hosseini

Studies on vegetation changes of rangelands under grazed and non-grazedconditions are of great importance in the range management planning programs. To determinethe change process of vegetation, this study was performed in Inche Shorezar site of Golestanprovince for nine years (1997-2005). The vegetation parameters were measured every year inseveral fixed plots inside and adjacent of exclosures...

2015
Lauren M Smith Oswald J Schmitz

Understanding the impacts of invasive species requires placing invasion within a full community context. Plant invaders are often considered in the context of herbivores that may drive invasion by avoiding invaders while consuming natives (enemy escape), or inhibit invasion by consuming invaders (biotic resistance). However, predators that attack those herbivores are rarely considered as major ...

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