نتایج جستجو برای: plant succession

تعداد نتایج: 405037  

2011
Jara Andreu Esperanza Manzano-Piedras Ignasi Bartomeus

We evaluated the ecological success of the manual removal of Carpobrotus species, a putative hybrid complex of a South African perennial mat-forming plant, by comparing treated, noninvaded, and invaded plots across coastal Andalucía in southern Spain. As a measure of the management effectiveness, we quantified the density of Carpobrotus seedlings and resprouts in treated plots one year after tr...

Journal: :Science 2006
Bill Shipley Denis Vile Eric Garnier

We developed a quantitative method, analogous to those used in statistical mechanics, to predict how biodiversity will vary across environments, which plant species from a species pool will be found in which relative abundances in a given environment, and which plant traits determine community assembly. This provides a scaling from plant traits to ecological communities while bypassing the comp...

A. A Ogunronbi O. O Arowolo, S. O Adeogun S. O Apantaku

Intergenerational succession aims at the renewal of family farm and addresses the problem of increasing aged population of principal farm owners. This study assessed poultry farm characteristics and poultry farmers’ perception of farm succession planning in southwest Nigeria. A multistage sampling procedure was used in selecting poultry farmers in Oyo and Osun states.  Data were analyzed using ...

Journal: :Forests 2022

Plant secondary succession is a very effective approach for the rejuvenation of degraded ecosystems. In order to comprehend alterations and driving mechanisms soil bacterial communities under old-field reveal their subsequent impacts on decomposition accumulation organic carbon (SOC) nitrogen (SON), we investigated changes in following ~160 years Loess Plateau China through analyses quantitativ...

Journal: :Tree physiology 2011
Guilherme Montandon Chaer Alexander Silva Resende Eduardo Francia Carneiro Campello Sergio Miana de Faria Robert Michael Boddey

The main challenges faced in the reclamation of severely degraded lands are in the management of the systems and finding plant species that will grow under the harsh conditions common in degraded soils. This is especially important in extremely adverse situations found in some substrates from mining activities or soils that have lost their upper horizons. Under these conditions, recolonization ...

2011
Peter G. Kennedy Logan M. Higgins Rachel H. Rogers Marjorie G. Weber

Colonization-competition tradeoffs have been shown to be important determinants of succession in plant and animal communities, but their role in ectomycorrhizal (ECM) fungal communities is not well understood. To experimentally examine whether strong spore-based competitors remain dominant on plant root tips as competition shifts to mycelial-based interactions, we investigated the mycelial comp...

2014
Antonio DiTommaso Scott H. Morris John D. Parker Caitlin L. Cone Anurag A. Agrawal

Soil seed bank composition is important to the recovery of natural and semi-natural areas from disturbance and serves as a safeguard against environmental catastrophe. White-tailed deer (Odocoileus virginianus) populations have increased dramatically in eastern North America over the past century and can have strong impacts on aboveground vegetation, but their impacts on seed bank dynamics are ...

2002
Thomas Glauben Hendrik Tietje Christoph R. Weiss

This study examines family farms and characteristics affecting farm succession. Based on a farm survey, three aspects of succession are analysed in the paper: the probability of family succession; the likelihood of having a successor designated; and the timing of succession. Large and specialised farms are more likely to be transferred within the family and to have appointed a successor. The nu...

2009
MARIA N. MIRITI

A profusion of fruit forms implies that seed dispersal plays a central role in plant ecology, yet the chance that an individual seed will ultimately produce a reproductive adult is low to infinitesimal. Extremely high variance in survival implies that variations in fruit production or transitions from seed to seedling will contribute little to population growth. The hey issue is that variance i...

2014
Eben N. Broadbent Angélica M. Almeyda Zambrano Gregory P. Asner Marlene Soriano Christopher B. Field Harrison Ramos de Souza Marielos Peña-Claros Rachel I. Adams Rodolfo Dirzo Larry Giles

Secondary forests cover large areas of the tropics and play an important role in the global carbon cycle. During secondary forest succession, simultaneous changes occur among stand structural attributes, soil properties, and species composition. Most studies classify tree species into categories based on their regeneration requirements. We use a high-resolution secondary forest chronosequence t...

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