English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

This paper concerns an age-structured juvenile-adult model with harvestingpulse and moving boundaries in a heterogeneous environment, in which the movingboundaries describe the natural expanding front of species and human periodicpulse intervention is carried on the adults. The principal eigenvalue isfirstly defined and its properties involving the intensity of harvesting andlength of habitat sizes are analysed. Then the criteria to determine whetherthe species spread or vanish is discussed, and some relevant sufficientconditions characterized by pulse are established. Our results reveal that theco-extinction or coexistence of species is influenced by internal expandingcapacities from species itself and external harvesting pulse from humanintervention, in which the intensity and timing of harvesting play key roles.The final numerical approximations indicate that the larger the harvesting rateand the shorter the harvesting period, the worse the survival of allindividuals due to the cooperation among juveniles and adults, and suchharvesting pulse can even alter the situation of species, from persistence toextinction. In addition, expanding capacities also affect or alter the outcomesof spreading-vanishing

On an age-structured juvenile-adult model with harvesting pulse in moving and heterogeneous environment