Patterns and drivers of climatic niche dynamics during biological invasions of island-endemic amphibians, reptiles, and birds

Adrián García-Rodríguez, Bernd Lenzner, Clara Marino, Chunlong Liu, Julián A. Velasco, Céline Bellard, Jonathan M. Jeschke, Hanno Seebens, Franz Essl

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Shifts between native and alien climatic niches pose a major challenge for predicting biological invasions. This is particularly true for insular species because geophysical barriers could constrain the realization of their fundamental niches, which may lead to underestimates of their invasion potential. To investigate this idea, we estimated the frequency of shifts between native and alien climatic niches and the magnitude of climatic mismatches using 80,148 alien occurrences of 46 endemic insular amphibian, reptile, and bird species. Then, we assessed the influence of nine potential predictors on climatic mismatches across taxa, based on species' characteristics, native range physical characteristics, and alien range properties. We found that climatic mismatch is common during invasions of endemic insular birds and reptiles: 78.3% and 55.1% of their respective alien records occurred outside of the environmental space of species' native climatic niche. In comparison, climatic mismatch was evident for only 16.2% of the amphibian invasions analyzed. Several predictors significantly explained climatic mismatch, and these varied among taxonomic groups. For amphibians, only native range size was associated with climatic mismatch. For reptiles, the magnitude of climatic mismatch was higher for species with narrow native altitudinal ranges, occurring in topographically complex or less remote islands, as well as for species with larger distances between their native and alien ranges. For birds, climatic mismatch was significantly larger for invasions on continents with higher phylogenetic diversity of the recipient community, and when the invader was more evolutionarily distinct. Our findings highlight that apparently common niche shifts of insular species may jeopardize our ability to forecast their potential invasions using correlative methods based on climatic variables. Also, we show which factors provide additional insights on the actual invasion potential of insular endemic amphibians, reptiles, and birds.

Original languageEnglish
Pages (from-to)4924-4938
Number of pages15
JournalGlobal Change Biology
Volume29
Issue number17
DOIs
Publication statusPublished - Sep 2023

Austrian Fields of Science 2012

  • 106003 Biodiversity research

Keywords

  • alien species
  • climate
  • islands
  • niche conservatism
  • niche margin index
  • niche shifts
  • prediction
  • vertebrates

Fingerprint

Dive into the research topics of 'Patterns and drivers of climatic niche dynamics during biological invasions of island-endemic amphibians, reptiles, and birds'. Together they form a unique fingerprint.

Cite this