“…For some selected works on autonomous scalar models, see [3,19,27,28,40] as well as additional references in Section 2. Among many other real world applications, we stress that generalized and modified versions of (1.1) include a neoclassic growth model used in economics [20], periodic equations [3,5,6,13,22] and systems [12] to account for periodic environments (as treated in Section 4), a diffusive Nicholson's equation derived as a suitable model for an age structured single species population [16,38,39], ndimensional Nicholson's systems with patch structured used in population dynamics [10,15,23,24,41] or as compartmental leukemia and marine models [4], etc.…”