دورية أكاديمية
أعرض في EDS

When higher carrying capacities lead to faster propagation

التفاصيل البيبلوغرافية
العنوان: When higher carrying capacities lead to faster propagation
المؤلفون: Haond, Marjorie, Morel-Journel, Thibaut, Lombaert, Eric, Vercken, Elodie, Mailleret, Ludovic, Roques, Lionel
المصدر: Peer Community Journal, Vol 1, Iss , Pp - (2021)
بيانات النشر: Peer Community In, 2021.
سنة النشر: 2021
المجموعة: LCC:Archaeology
LCC:Science
مصطلحات موضوعية: Archaeology, CC1-960, Science
الوصف: Finding general patterns in the expansion of natural populations is a major challenge in ecology and invasion biology. Classical spatio-temporal models predict that the carrying capacity (K) of the environment should have no influence on the speed (v) of an expanding population. We tested the generality of this statement with reaction-diffusion equations, stochastic individual-based models, and microcosms experiments with Trichogramma chilonis wasps. We investigated the dependence between K and v under different assumptions: null model (Fisher-KPP-like assumptions), strong Allee effects, and positive density-dependent dispersal. These approaches led to similar and complementary results. Strong Allee effects, positive density-dependent dispersal and demographic stochasticity in small populations lead to a positive dependence between K and v. A positive correlation between carrying capacity and propagation speed might be more frequent than previously expected, and be the rule when individuals at the edge of a population range are not able to fully drive the expansion.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2804-3871
Relation: https://peercommunityjournal.org/articles/10.24072/pcjournal.66/; https://doaj.org/toc/2804-3871
DOI: 10.24072/pcjournal.66
URL الوصول: https://doaj.org/article/ed18eed5f06f4ed09a884ce3dc66fcca
رقم الأكسشن: edsdoj.18eed5f06f4ed09a884ce3dc66fcca
قاعدة البيانات: Directory of Open Access Journals
كن أول من يترك تعليقا!
يجب تسجيل دخولك أولا