نتایج جستجو برای: successional

تعداد نتایج: 2331  

2017
Yang Lu Sailesh Ranjitkar Rhett D. Harrison Jianchu Xu Xiaokun Ou Xuelan Ma Jun He

The use of native species in forest restoration has been increasingly recognized as an effective means of restoring ecosystem functions and biodiversity to degraded areas across the world. However, successful selection of species adapted to local conditions requires specific knowledge which is often lacking, especially in developing countries. In order to scale up forest restoration, experiment...

Journal: :Tree physiology 2016
Fernando Pineda-García Horacio Paz Frederick C Meinzer Guillermo Angeles

In seasonal plant communities where water availability changes dramatically both between and within seasons, understanding the mechanisms that enable plants to exploit water pulses and to survive drought periods is crucial. By measuring rates of physiological processes, we examined the trade-off between water exploitation and drought tolerance among seedlings of trees of a tropical dry forest, ...

Journal: :Tree physiology 1990
T. Koike

Autumn coloring of deciduous broad-leaved trees in northern Japan was found to develop either from the inner part of the crown outward (inner-type), or from the outer part of the crown inward (outer-type). Inner-type trees had early-successional characteristics, whereas outer-type trees had late-successional characteristics. Although alders (Alnus hirsuta (Spach) Rupr. and A. japonica (Thunb.) ...

2008
Thomas A. Kurkowski Daniel H. Mann David L. Verbyla

Postfire succession in the Alaskan boreal forest follows several different pathways, the most common being self-replacement and species-dominance relay. In self-replacement, canopy-dominant tree species replace themselves as the postfire dominants. It implies a relatively unchanging forest composition through time maintained by trees segregated within their respective, ecophysiological niches o...

Journal: :Forests 2022

Fast-growing pioneer tree species play a crucial role in triggering late successional development forests. Experimental evidence of the soil legacy effects pre-existing plants on performance is lacking. We explored soils conditioned by early herbs (Poa poophagorum Bor and Potentilla fragarioides L.) mid-successional shrubs (Rhododendron fortunei Lindl. Enkianthus quinqueflorus Lour.) late-succe...

Journal: :European Journal of Forest Research 2011

2016
Luiz Eduardo Macedo-Reis Samuel Matos Antunes de Novais Graziela França Monteiro Carlos Alberto Hector Flechtmann Maurício Lopes de Faria Frederico de Siqueira Neves

Bark and the ambrosia beetles dig into host plants and live most of their lives in concealed tunnels. We assessed beetle community dynamics in tropical dry forest sites in early, intermediate, and late successional stages, evaluating the influence of resource availability and seasonal variations in guild structure. We collected a total of 763 beetles from 23 species, including 14 bark beetle sp...

Journal: :The American naturalist 2004
M Forrest Hill Jon D Witman Hal Caswell

We present a Markov chain model of succession in a rocky subtidal community based on a long-term (1986-1994) study of subtidal invertebrates (14 species) at Ammen Rock Pinnacle in the Gulf of Maine. The model describes successional processes (disturbance, colonization, species persistence, and replacement), the equilibrium (stationary) community, and the rate of convergence. We described succes...

Journal: :Journal of environmental quality 2002
Timothy T Bergsma G Philip Robertson Nathaniel E Ostrom

We investigated the effects of recent moisture history on the relative production of N2O and N2 during denitrification in soil from cropped and successional ecosystems. The soils were pedogenically identical but had been managed differently for the past decade. Sieved soils were amended with nitrate, glucose, and water. Long-wet and short-wet incubations received 80 and 0%, respectively, of pre...

Journal: :Development 2013
Emma Juuri Maria Jussila Kerstin Seidel Scott Holmes Ping Wu Joy Richman Kristiina Heikinheimo Cheng-Ming Chuong Katrin Arnold Konrad Hochedlinger Ophir Klein Frederic Michon Irma Thesleff

Tooth renewal is initiated from epithelium associated with existing teeth. The development of new teeth requires dental epithelial cells that have competence for tooth formation, but specific marker genes for these cells have not been identified. Here, we analyzed expression patterns of the transcription factor Sox2 in two different modes of successional tooth formation: tooth replacement and s...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید