Resource Allocation Patterns as a Function of Clonal Morphology: A General Model Applied to a Foraging Clonal Plant

The study of allocation of resources offers the possibility of understanding the pressures of natural selection on reproductive functions. In allocation studies, theoretical predictions are generated and the assumptions as well as the predictions can be tested in the field. Here, we review some of the theoretical models, and discuss how much biological reality can be included in them, and what factors have been left out. We also review the empirical data that have been generated as tests of this body of theory. There are many problems associated with estimating reproductive resources, and also with testing how allocation of these resources affects reproductive and other components of fitness, and we assess how important these may be in allowing empirical results to be interpreted. Finally, we discuss the relevance of resource allocation patterns to the evolution of unisexual flowers, both at the level of individual plants (monoecy, andro- and gynomonoecy) and at the population level (dioecy).

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Relationships between resprouting ability, species traits and resource allocation patterns in woody species in a temperate forest

Functional Ecology ◽

10.1111/1365-2435.12616 ◽

2016 ◽

Vol 30 (7) ◽

pp. 1205-1215 ◽

Cited By ~ 15

Author(s):

Rei Shibata ◽

Hiroko Kurokawa ◽

Mitsue Shibata ◽

Hiroshi Tanaka ◽

Shigeo Iida ◽

...

Keyword(s):

Resource Allocation ◽

Temperate Forest ◽

Woody Species ◽

Species Traits ◽

Allocation Patterns ◽

Resprouting Ability

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Modeling efficient resource allocation patterns for arable crop farmers in Niger state, Nigeria: A linear programming approach

Nigerian Journal of Technological Research ◽

10.4314/njtr.v6i1.90327 ◽

2013 ◽

Vol 6 (1) ◽

pp. 1

Author(s):

L Tanko ◽

KM Baba

Keyword(s):

Resource Allocation ◽

Linear Programming ◽

Programming Approach ◽

Linear Programming Approach ◽

Arable Crop ◽

Efficient Resource ◽

Allocation Patterns

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Perception of neighbouring plants by rhizomes and roots: morphological manifestations of a clonal plant

Canadian Journal of Botany ◽

10.1139/b97-926 ◽

1997 ◽

Vol 75 (12) ◽

pp. 2146-2157 ◽

Cited By ~ 31

Author(s):

Elisabeth Huber-Sannwald ◽

Martyn M. Caldwell ◽

David A. Pyke

Keyword(s):

Resource Competition ◽

Clonal Plant ◽

Root Systems ◽

Inhibitory Effect ◽

Pseudoroegneria Spicata ◽

Agropyron Desertorum ◽

Elymus Lanceolatus ◽

Clonal Morphology ◽

Neighbouring Plant ◽

Root Contact

A previous study showed that clonal morphology of the rhizomatous grass Elymus lanceolatus ssp. lanceolatus (Scibner & J.G. Smith Gould) was influenced more by neighbouring root systems than by the local distribution of nutrients. In this study we determine whether individual rhizomes or roots of E. lanceolatus perceive neighbouring root systems and how this is manifested in morphological responses of E. lanceolatus clones. Elymus lanceolatus was grown in the same bin with Pseudoroegneria spicata (Pursh) A. Love or Agropyron desertorum (Fisch. ex Link) Schult. plants. Elymus lanceolatus was separated from its neighbours by different barriers. The barriers allowed either only E. lanceolatus roots; only a single E. lanceolatus primary rhizome; or both roots and rhizomes to contact the neighbour root system. When only a single E. lanceolatus primary rhizome with potentially developing branching rhizomes made contact with the neighbour, the clonal structure of E. lanceolatus was modified more with P. spicata as the neighbour than with A. desertorum. With root contact of E. lanceolatus alone there was a similar effect with the neighbouring plants, but there was a more marked inhibitory effect on E. lanceolatus clonal growth with P. spicata than with A. desertorum, compared with the treatment with only a single rhizome in contact with the neighbour. Root resource competition in the unconstrained treatment (roots and rhizomes) between neighbouring plant and E. lanceolatus was more apparent with A. desertorum than with P. spicata. This study is one of the first to document that rhizome and root contact of a clonal plant with its neighbours may induce different clonal responses depending on the species of neighbour. Key words: Agropyron desertorum, clonal morphology, Elymus lanceolatus ssp. lanceolatus, plant interference, plant contact, Pseudoroegneria spicata, rhizome structure, root systems.

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Changes in the growth and reproduction of a clonal plant as a result of disruption of mycorrhizal network

Plant and Fungal Systematics ◽

10.35535/pfsyst-2021-0017 ◽

2021 ◽

Vol 66 (2) ◽

pp. 195-200

Author(s):

Martyna Dominiak-Świgoń ◽

Zbigniew Kasprzykowski ◽

Marlena Lembicz

Keyword(s):

Resource Allocation ◽

Sexual Reproduction ◽

Mycorrhizal Fungus ◽

Clonal Plant ◽

Limited Resource ◽

Clonal Plants ◽

Dry Mass ◽

Mother Plant ◽

Hieracium Pilosella ◽

Mycorrhizal Network

In a clonal network, a mother plant is connected with daughter ramets. During network development, new ramets may encounter barriers that disrupt network integrity. As a result, resource allocation within a network is disturbed. In this study, the effect of network integrity disruption on the size of ramets and their sexual reproduction was investigated in mouse-ear hawkweed (Hieracium pilosella). Three types of networks were formed experimentally with unlimited resource allocation, with limited resource allocation between a mother plant and its daughter ramets and with limited resource allocation between all ramets. Networks were either supported by the presence of a mycorrhizal fungus or restricted by its absence. We found that the size of the mother and the effectiveness of sexual reproduction did not differ among network types. The length and dry mass of runners were higher in cases with limited resource exchange between a mother plant and its daughters. In the clonal plant network without any barriers to connection, a higher number of rosettes and lower dry mass of daughters were recorded. The mean number of daughter flowers did not differ among the network types. Mycorrhizal network is one of the most important factors for the sexual reproduction of clonal plants. With a reduced mycorrhizal network, plants invested in clonal growth.

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