William K. Annis

1 month ago | nsojournals.onlinelibrary.wiley.com | Brandon K. Peoples |Julian D. Olden |Lily M. Thompson |William K. Annis

Introduction The abundant-center hypothesis (ACH; Brown 1984) is a foundational macroecology theory. The ACH predicts that the abundance of a species is greatest in the center of its geographic range where habitat is the most suitable and decreases towards the range edges due to decreased fitness associated with declining habitat suitability (Fig. 1A, Brown, 1984, Brown et al. 1995).

1 month ago | onlinelibrary.wiley.com | Lily M. Thompson |William K. Annis |Stephen R. Midway |Julian D. Olden

1 Introduction Many theories and conceptual models seek to explain dynamics of species invasions (Blackburn et al. 2011; Gurevitch et al. 2011; Enders and Jeschke 2018; Daly et al. 2023). These ‘invasion hypotheses’ are commonly conceptualised as the spatiotemporal interplay between three key mechanisms.