Spatial distribution and the performance of individual plants in a natural population of Silene dioica

Oecologia
Glenn R Matlack, John L Harper

Abstract

1) A natural population of the perennial herb Silene dioica was mapped at intervals over the course of a year. The 'space available' to each plant was estimated by a Thiessen polygon, defined by the position of the plant's neighbours. 2) Germination and recruitment of seedlings appeared to be unrelated to the position of individuals with respect to their neighbours. 3) Various measures of plant growth were strongly correlated with polygon area in some seasons, suggesting that competition was occurring between individuals for spatially distributed resources. Plasticity allowed plants to exploit the available area, regardless of polygon shape or the number of neighbours defining a polygon. 4) In the early spring phase of seedling establishment, growth appeared to be enhanced and seedlings lived longer when they were close to neighbours. In late spring this effect was replaced by the more rapid growth of individuals in the larger polygons, i.e. with more distant neighbours. This sequence of events is consistent with the onset of competition for resources in late spring. 5) These effects were observed despite heterogeneity in the environment and variation in individual response.

References

Feb 1, 1983·Oecologia·A R WatkinsonL G Firbank
Apr 1, 1984·Oecologia·Richard MithenJacob Weiner

❮ Previous
Next ❯

Citations

Sep 13, 2014·Nature Communications·Hans PretzschThomas Rötzer
Mar 25, 2015·Nature Communications·György Kröel-DulayJosep Penuelas
Dec 27, 2018·Journal of Theoretical Biology·Cortland K Griswold

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Epigenetics Insights from Twin Studies

Find the latest research on epigenetics and twin studies here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.