Island species experience higher niche expansion and lower niche conservatism during invasion

Stroud, James T.

doi:10.1073/pnas.2018949118

Cited by 14 publications

(19 citation statements)

References 3 publications

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“…We found that IAS-threatened birds were more often insular endemic compared to alien and worldwide birds. Facilitated niche shifts during invasion due to high constraints in their native range [60,61] was not an important factor here associated with insular endemic species that become successful invaders. One exception in our database was the New Zealand weka ( Gallirallus australis ), a flightless rail that has been introduced on several islands of New Zealand were it predates on endemic threatened species, but which is also threatened in its native island by invasive alien mammals (e.g.…”

Section: Discussionmentioning

confidence: 99%

When origin, reproduction ability and diet define the role of birds in invasions

Marino

Bellard

2023

Proc. R. Soc. B.

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The ecological impacts of invasive alien species (IAS) are increasingly documented; however, they are usually studied through the lens of either the IAS or the affected species (IAS-threatened species). A clear understanding of how both protagonists of biological invasions are characterized is still lacking. We investigated the morphology, life history and ecology of birds involved in biological invasions. Evaluating the distribution of 450 IAS-threatened birds and 400 alien birds in a functional space, we found that both groups retained various strategies. Aliens had larger clutches and were more likely to be herbivores than IAS-threatened and worldwide birds, while IAS-threatened birds were more insular endemic from the Australia region than alien and worldwide birds. IAS-threatened species showed opposite strategies to aliens regarding traits related to diet, origin and reproduction. Further comparing traits associated with impact magnitude, we found that even if aliens were mostly herbivorous, those with high impact had more a generalist behaviour and an animal-based diet compared to aliens with low impact. By emphasizing differences relating to the distribution of bird groups in a functional space, we opened new opportunities to identify the role of birds in biological invasions.

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Section: Discussionmentioning

confidence: 99%

When origin, reproduction ability and diet define the role of birds in invasions

Marino

Bellard

2023

Proc. R. Soc. B.

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“…Elevation range Narrow altitudinal ranges encompass less heterogeneous climates, restricting species access to only a small portion of climatic niche space (Stroud, 2021) Lower native elevation range results in higher mismatch between native and alien climatic niches Topographic complexity (Roughness)…”

Section: Native Range Characteristicsmentioning

confidence: 99%

“…Islands provide less heterogeneous conditions than continental regions (Stroud, 2021), thus chances of finding dissimilar climates during invasion are higher in mainland Higher mismatch between native and alien climatic niches is expected in invasions of continental regions…”

Section: Insularity Of Alien Rangementioning

confidence: 99%

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

García‐Rodríguez

Lenzner

Marino

et al. 2023

Global Change Biology

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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 | 4925 GARCÍA-RODRÍGUEZ et al.

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“…Lineages that arrive and diversify in isolated locations regularly undergo ecological shifts that result in behaviors or phenotypes that are uncommon or non-existent in source communities (Pinto et al 2008, Esselstyn et al 2012, 2015, Stroud and Losos 2016). However, the degree to which closely related species in isolated locations share similar life history traits may vary (Losos et al 2003, Hiller et al 2019, Dorey et al 2020, Stroud 2021). The strength of phylogenetic niche conservatism, or the tendency for similar niche requirements or trait values to be clustered within clades, mediates the impact of phylogenetic diversity on community niche space.…”

Section: Introductionmentioning

confidence: 99%

The roles of isolation and interspecific interaction in generating the functional diversity of an insular mammal radiation

Nations

Kohli

Handika

et al. 2022

Preprint

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Communities that vary in the richness of closely related species but occupy similar environments provide a powerful system to investigate how trait variation and species richness interact to fill ecological space. In tropical mountain habitats on the island of Sulawesi, Indonesia, murine rodent community richness ranges from 7 to 23 species. We measured 17 morphological, ecological, and isotopic traits to test for the expansion or packing of community ecospace among nine murine communities. Traits related to cranial shape (but not jaw shape), trophic level, and body shape showed the strongest evidence of expansion. Locomotion emerged as a fundamental axis of ecological variation, expanding ecospace and enabling niche packing of other traits such as diet and body size. Though trait divergence often explains functional diversity in island communities, we found that phylogenetic diversity facilitates community ecospace expansion in some conserved traits such as cranial shape, while more labile traits are overdispersed both within and between island clades. Our results evoke competition, trait evolvability, and the independent evolutionary trajectories of each of Sulawesi's murine clades as central to generating the exceptional functional diversity and species richness in this insular radiation. Komunitas-komunitas dengan variasi kekayaan spesies berkerabatan dekat tetapi menempati lingkungan yang serupa menyediakan sistem yang kuat untuk menyelidiki bagaimana variasi sifat dan kekayaan spesies berinteraksi untuk mengisi ruang ekologi. Kami mengukur 17 karakter morfologi, ekologi, dan sifat isotop untuk menguji perluasan atau pengemasan volume ruang ekologi komunitas di antara sembilan komunitas hewan pengerat yang terdiri dari 7 hingga 23 spesies di pulau Sulawesi. Sifat-sifat yang berhubungan dengan bentuk tengkorak (tetapi tidak bentuk rahang), tingkat trofik, dan bentuk tubuh menunjukkan bukti ekspansi yang kuat. Sistem penggerak muncul sebagai sumbu fundamental dari variasi ekologi, mengembangkan ruang ekologi, dan memungkinkan pengemasan relung pada sifat lain seperti makanan dan ukuran tubuh. Meskipun divergensi sifat dianggap melampaui konservatisme ceruk di komunitas pulau, kami menemukan bahwa keragaman filogenetik memfasilitasi ekspansi ruang ekologi komunitas dalam beberapa sifat yang dilestarikan seperti bentuk tengkorak, sementara sifat yang lebih labil tersebar secara berlebihan baik di dalam maupun di antara klad pulau. Hasil kami menunjukkan persaingan, sifat evolvabilitas, dan lintasan evolusi independen dari setiap klad murinae Sulawesi sebagai pusat untuk menghasilkan keragaman fungsional yang luar biasa dan kekayaan spesies dalam radiasi insular ini.

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Island species experience higher niche expansion and lower niche conservatism during invasion

Cited by 14 publications

References 3 publications

When origin, reproduction ability and diet define the role of birds in invasions

When origin, reproduction ability and diet define the role of birds in invasions

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

The roles of isolation and interspecific interaction in generating the functional diversity of an insular mammal radiation

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