Results 31 to 40 of about 61,462 (287)

A simple mathematical model of gradual Darwinian evolution: Emergence of a Gaussian trait distribution in adaptation along a fitness gradient [PDF]

open access: yes, 2013
We consider a simple mathematical model of gradual Darwinian evolution in continuous time and continuous trait space, due to intraspecific competition for common resource in an asexually reproducing population in constant environment, while far from ...
A Calsina   +22 more
core   +4 more sources

Intraspecific Competitive Interactions Rapidly Evolve Via Spontaneous Mutations [PDF]

open access: yesEvolutionary Ecology, 2022
Abstract Using a mechanistic eco-evolutionary trait-based neighborhood-model, we quantify the impact of mutations on intraspecific spatial interactions to better understand mechanisms underlying the maintenance of genetic variation and the potential effects of these evolved interactions on the population dynamics of Arabidopsis thaliana. We use
Henning Nottebrock   +3 more
openaire   +1 more source

Effect of habitat degradation on competition, carrying capacity, and species assemblage stability [PDF]

open access: yes, 2017
In human-impacted rivers, nutrient pollution has the potential to disrupt biodiversity organisation and ecosystem functioning, prompting calls for effective monitoring and management.
Calizza, Edoardo   +3 more
core   +1 more source

Mathematical Model of Iteroparous and Semelparous Species Interaction

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2022
A species can be categorized based on its reproductive strategy, including semelparous and iteroparous. Semelparous species is a species that reproduces only once in its lifetime shortly before dying, while iteroparous species is a species that ...
Arjun Hasibuan   +2 more
doaj   +1 more source

Genetic divergence and aggressiveness within a supercolony of the invasive ant Linepithema humile [PDF]

open access: yesNeoBiota, 2022
Biological invasions constitute an opportunity to study the evolutionary processes behind species’ adaptations. The invasive potential of some species, like the Argentine ant (Linepithema humile), has likely been increasing because they show low ...
Iago Sanmartín-Villar   +4 more
doaj   +3 more sources

Individualistic responses of forest herb traits to environmental change [PDF]

open access: yes, 2020
Intraspecific trait variation (ITV; i.e. variability in mean and/or distribution of plant attribute values within species) can occur in response to multiple drivers.
Blondeel, Haben   +9 more
core   +1 more source

Female Fighting and Host Competition Among Four Sympatric Species of \u3ci\u3eMelittobia\u3c/i\u3e (Hymenoptera: Eulophidae) [PDF]

open access: yes, 2018
Melittobia is a genus of parasitic wasps well known for high levels of inbreeding and violent male combat. Casual observations of groups of sisters of M.
Deyrup, Leif D, Matthews, Robert W
core   +2 more sources

Virus infection suppresses Nicotiana benthamiana adaptive phenotypic plasticity. [PDF]

open access: yesPLoS ONE, 2011
Competition and parasitism are two important selective forces that shape life-histories, migration rates and population dynamics. Recently, it has been shown in various pathosystems that parasites can modify intraspecific competition, thus generating an ...
Stéphanie Bedhomme, Santiago F Elena
doaj   +1 more source

Ecosystem size predicts eco-morphological variability in a postglacial diversification [PDF]

open access: yes, 2017
Identifying the processes by which new phenotypes and species emerge has been a long-standing effort in evolutionary biology. Young adaptive radiations provide a model to study patterns of morphological and ecological diversification in environmental ...
Adams, Colin E.   +3 more
core   +1 more source

Competition between Medicago sativa and Dactylis glomerata in mixed culture

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 1991
The higs yield obtained from mixte culture of Medicago sativa and Dactylis glomerata in favourable cultivating conditions, show the superiority of this mixture in obtaining rich and constant yields.
Ioan ROTAR, Aurelia MOLDOVAN
doaj   +1 more source

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