Minami Sasaki, Cristián J. Monaco, David J. Booth, Ivan Nagelkerken
{"title":"Ocean warming and novel species interactions boost growth and persistence of range-extending tropical fishes but challenge that of sympatric temperate species in temperate waters","authors":"Minami Sasaki, Cristián J. Monaco, David J. Booth, Ivan Nagelkerken","doi":"10.1111/jbi.14983","DOIUrl":"10.1111/jbi.14983","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Climate change can have a broad range of impacts on the physiology and behaviour of animals. These effects can be mediated by the presence of other species in the community, but current forecasts of species responses to climate change largely ignore biological interactions. This is particularly true for novel interactions between range-extending and native species, as this is often considered as noise and excluded from predictive models. Here we simulate how a tropical range-extending and a local temperate fish species respond to the independent and combined effects of future ocean warming (RCPs 4.5 and 8.5) and novel ecological interactions in temperate ecosystems.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>East coast of Australia, along a ~ 2,000 km latitudinal gradient in a global climate warming hotspot.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Abudefduf vaigiensis</i> (tropical) and <i>Atypicthys strigatus</i> (temperate) fishes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We use a dynamic energy budget model to simulate the length growth (i.e., increases in body length of individuals over time) and population persistence of juveniles of a tropical and a temperate fish species that form mixed-species shoals, under different climate scenarios with and without the effects of novel ecological interactions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our model forecasts that length growth of the juvenile tropical species will increase under ocean warming across subtropical to temperate regions. This increased length growth will be more drastic in temperate regions than in the subtropics, as winter warming will allow the tropical species to overwinter more frequently and show positive growth throughout the year. In contrast, warmer summer temperatures in the subtropics will likely exceed the optimal temperature of the juvenile temperate species at their trailing edge, resulting in reduced length growth under climate warming. Novel species interactions increased length growth of the juvenile tropical species but did not affect its winter or summer survival. In contrast, novel species interactions with tropical species were forecast to reduce length growth of the juvenile temperate species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our study suggests that for some coastal fish species future","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14983","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Two Y-chromosomal lineages in White-cheeked macaque (Macaca leucogenys) indicate a possible male-mediated introgression in ‘sinica’ group macaques","authors":"Avijit Ghosh, Lalit Kumar Sharma, Mukesh Thakur","doi":"10.1111/jbi.14987","DOIUrl":"10.1111/jbi.14987","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Whether widespread gene flow among primates is emblematic of their initial radiation or resulted from secondary contactremains a long-standing question. We address this question on ‘sinica’ group macaques, highlighting the origin of the white-cheeked macaque (<i>Macaca leucogenys</i>).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Eastern Himalayan highlands of Arunachal Pradesh, India.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Macaca leucogenys</i> Li, Zhao, Fan, 2015b (Cercopithecidae).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Mitochondrial genomes and Y-chromosomal TSPY gene sequences of WCM were obtained from two distant populations through low-depth genome sequencing. Phylogenetic analyses were conducted along with sequences of other available species within the genus <i>Macaca</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We observed the presence of a single maternal lineage but two parental lineages. Interestingly, one paternal lineage of the white-cheeked macaque clustered with a common lineage of <i>M. assamensis</i> and <i>M. munzala.</i> The other paternal lineage clustered with the sequences of the white-cheeked macaque from the type locality in Southeastern Tibet.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>The result indicates a possible historic male-mediated introgression in the white-cheeked macaque, which is also present in the two other species belonging to the ‘sinica’ group. Therefore, extensive gene flow in ‘sinica’ group macaques possibly came from one or more introgression events in the past that also played a role in the origin and evolution of these macaque species.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14987","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muyao Qi, Laura M. Suz, Martin I. Bidartondo, C. David L. Orme, Guillaume Delhaye, Isabel Openshaw, Carolina Tovar
{"title":"Fruitbody and root data infer different environmental niches for ectomycorrhizal fungi","authors":"Muyao Qi, Laura M. Suz, Martin I. Bidartondo, C. David L. Orme, Guillaume Delhaye, Isabel Openshaw, Carolina Tovar","doi":"10.1111/jbi.14986","DOIUrl":"10.1111/jbi.14986","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We used two fungal data sources for occurrence records (fruitbodies and roots) to (1) test the influence of data source on estimating the environmental niche of ectomycorrhizal (ECM) fungi and (2) compare the differences in estimated niche area and density for ECM fungal species with conspicuous (easily observed, i.e. mushrooms) versus inconspicuous (difficult to observe and/or usually overlooked, i.e. crusts and truffles) fruitbodies.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Europe.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Sixty-six ectomycorrhizal fungi.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used fungal records obtained from fruitbody and root data of 66 common ECM fungal species in European forests to estimate their environmental niches. The fruitbody data were extracted from public databases (GBIF, UNITE), while the root data (from individual ectomycorrhizas) were obtained from a dataset of 136 ICP Forests long-term intensive monitoring plots. We estimated the niches for combined data sources (fruitbody and root data) and for each individual data source using six key environmental variables for ECM fungal community composition. We then examined how estimated niche overlap and area (number of cells in niche grid) varied for the two data sources between conspicuous and inconspicuous species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that although the niches estimated using combined data from the two data sources had high overlap with the niches estimated from fruitbody data, the niches estimated from fruitbody data had low or medium overlap with the niches estimated using root data for most ECM fungi. The overlap between the two data sources for conspicuous species was significantly larger than that for inconspicuous species. Root data were important for estimating the niche of inconspicuous species, which had a high ratio of root data to fruitbody data.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>Our results indicate that although fruitbody data suffice for estimating the environmental niche for most conspicuous ECM fungi, combined datasets including fruitbody and root data can improve the accuracy of estimated niches and should be used. Root data for inconspicuous species are particularly useful, and thus, adopting root data in niche estimation will better infer the nic","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14986","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biogeography of oribatid mites (Acari) reflects their ancient origin and points to Southeast Asia as centre of radiation","authors":"Jing-Zhong Lu, Xue Pan, Stefan Scheu, Mark Maraun","doi":"10.1111/jbi.14982","DOIUrl":"10.1111/jbi.14982","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Understanding the worldwide distribution of species has fascinated scientists at least since Alfred Russel Wallace. Global patterns of belowground biodiversity may fundamentally differ from those of aboveground organisms. Here, we examine the global pattern and potential mechanisms driving the endemism and overlap of a soil microarthropod taxon.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Global.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Oribatida, Acari.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We investigated the global distribution of oribatid mites in five biogeographic regions including North America, South America, Eurasia, Africa and Oceania using a world list on the distribution of ~11,400 described species (including subspecies) at species, genera and family levels.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results and Main Conclusion</h3>\u0000 \u0000 <p>We found that most “endemic” (i.e., only occurring in one of the regions) species (4297) and also genera (143) occurred in Eurasia indicating that this region was the centre of radiation of oribatid mites. Within Eurasia, oribatid mite diversity was highest in Southeast Asia (1975 species) likely reflecting the long tropical history of this region (at least 200 million years), and also high fluctuations in water levels and island formation on the Sunda Shield. On a family level, oribatid mite diversity did not differ between biogeographic regions indicating that oribatid mites are much older than the tropics and older than the existence of Pangaea supporting the view of their origin in the early Palaeozoic. Finally, among the 55 species that occurred in all biogeographic regions nearly 50% reproduce by thelytoky and colonize high latitude ecosystems, indicating that compared to sexual species a disproportionally high number of parthenogenetic species is distributed worldwide suggesting that they possess a general-purpose genotype. The other ~50% sexuals predominantly occur in tropical/subtropical regions across biogeographic regions supporting the view that resource shortage in tropical regions favours sex. Our findings highlight the importance of biogeographical studies of soil animals to better understand their diversity, distribution and life history strategies.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Thompson-Saud, A. Grech, S. Choukroun, S. I. Vásquez, C. Salas, A. Ospina-Alvarez
{"title":"The biophysical dynamics of giant kelp, Macrocystis pyrifera: Seasonal patterns and dispersal mechanisms in the southeast Pacific","authors":"G. Thompson-Saud, A. Grech, S. Choukroun, S. I. Vásquez, C. Salas, A. Ospina-Alvarez","doi":"10.1111/jbi.14980","DOIUrl":"10.1111/jbi.14980","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Dispersal and connectivity play important roles in shaping the population structure of giant kelp, <i>Macrocystis pyrifera</i>, across the western coast of South America. Its high potential dispersal capacity suggests the existence of metapopulations, where discrete habitat patches or groups of patches form subpopulations that interact at some level. However, the dispersal patterns of giant kelp in this region have not been quantified. This study assesses the dispersal and settlement of <i>Macrocystis pyrifera</i> in the southeast Pacific, specifically focusing on the impact of environmental variables and ocean currents within the Humboldt Current System.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Southeast Pacific (coast of Chile and Peru).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>1997–2008.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p><i>Macrocystis pyrifera</i> (giant kelp).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using a combination of hydrodynamic and individual-based models, we analysed kelp fragment movements over 12 years, with a particular emphasis on the effects of the El Niño-Southern Oscillation (ENSO) and seasonal changes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our results highlight a key settlement area in the southern Chilean region. We found that shorter travel distances of kelp fragments increased the likelihood of reaching a suitable habitat, underscoring the importance of local environmental conditions. We delineated intricate northward dispersal paths for kelp fragments, which appear to be governed by the interplay of wind and ocean current dynamics. Seasonal variations, notably in autumn and winter, favour the likelihood of reaching a settlement area due to favourable winds. Furthermore, ENSO events appear to influence dispersal distances, with fragments travelling the longest distances during El Niño phases.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>These findings are essential for informing kelp conservation strategies in the context of climate change, emphasizing the necessity of considering local and seasonal environmental factors alongside ENSO impacts.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14980","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johannes Måsviken, Love Dalén, Karin Norén, Fredrik Dalerum
{"title":"Processes regulating local community assembly of plants and spiders in high latitude mountains","authors":"Johannes Måsviken, Love Dalén, Karin Norén, Fredrik Dalerum","doi":"10.1111/jbi.14981","DOIUrl":"10.1111/jbi.14981","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Mountains are often used to study how environmental factors influence biodiversity. However, we have limited understanding of the processes causing biodiversity variation in mountains and whether such processes vary across trophic levels and spatial scales. The aim of this study was to evaluate (i) whether community assembly processes varied along elevational gradients, (ii) whether there were differences in such variation between primary producers (vascular plants) and secondary consumers (spiders) and (iii) whether there were scale dependencies in any elevational variation in community assembly.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Fennoscandia, Northern Sweden.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Vascular plants, spiders.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used phenotypic and phylogenetic dispersion to quantify how elevation influenced community assembly of vascular plants and spiders and whether there were any scale dependencies in such influences. Our original data of plant and spider communities came from our own field surveys, phenotypic dispersion was calculated based on matrices of ecological traits, and phylogenetic dispersion was calculated from phylogenetic trees for each organism group. Trait matrices were based on a combination of literature values and our own measurements. The phylogeny for vascular plants was based on a published plant super-tree, whereas the phylogeny for spiders was created by ourselves based on the DNA sequences at the mitochondrial cytochrome c oxidase subunit 1 (COI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Plants were environmentally filtered throughout all elevations and scales, but the importance of convergent evolution increased with elevation. For spiders, the importance of environmental filtering as well as niche conservatism increased with elevation. For both groups, communities at smaller scales were more influenced by biotic regulation and niche conservatism than at larger scales.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our study highlights both taxonomic differences and scale dependencies in how elevation influences community assembly. We argue that these results can have broad ramifications for our understanding of how spatial variation in biodiversity is generated and maintained. This may have particular relevance ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14981","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover","authors":"","doi":"10.1111/jbi.14656","DOIUrl":"https://doi.org/10.1111/jbi.14656","url":null,"abstract":"<p>On the cover: A poison-dart (Ameerega munduruku) frog sitting on the rocky bank of a rivulet in south Amazon. Photo: André Teles.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14656","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biogeography and evolution of the Cerrado endemic avifauna","authors":"Leonardo Esteves Lopes, José Maria Cardoso Silva","doi":"10.1111/jbi.14977","DOIUrl":"10.1111/jbi.14977","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Endemicity is one of the main indicators to describe and compare regional biotas. Endemic species can originate from inter- or intra-regional speciation, but few studies have measured the relative contribution of these two mechanisms in the assembly of regional biotas. We investigated the relative contributions of inter- and intra-regional speciation in assembling the endemic avifauna of the Cerrado, the largest South American savanna region. We also tested hypotheses about the relationships between habitat preferences with range size and evolutionary age, as well as whether the biogeographical relationships between the Cerrado and neighbouring regions are randomly distributed around the region.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Cerrado, central South America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Birds.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used distributional and phylogenetic data of Cerrado endemic birds.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The proportion of endemic species in the Cerrado region is relatively low, when compared to other organisms living in the same region. Furthermore, we found that inter-regional speciation is the primary factor promoting bird endemism in the Cerrado and that sister species of Cerrado endemics are concentrated in northwestern (forest species) and southwestern (nonforest species) South America. We also found that nonforest endemic bird species do not necessarily have larger geographical ranges than forest endemic species; however, nonforest endemic species are evolutionarily older than forest species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main conclusions</h3>\u0000 \u0000 <p>The assembly of the Cerrado endemic avifauna is complex and idiosyncratic. The intricate history of the Cerrado endemic avifauna suggests that it is constantly exchanging species with its neighbouring regions. Due to its high ecological heterogeneity, the Cerrado ecosystems are capable of harbouring populations of both endemic and non-endemic species acquired during periods of significant biotic exchange.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141610034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ramamoorthi Chaitanya, Rohit Naniwadekar, Shai Meiri
{"title":"Why did the Hornbill not cross the river? Upland habitats rather than a physical barrier limit the distribution of the Brown Hornbill","authors":"Ramamoorthi Chaitanya, Rohit Naniwadekar, Shai Meiri","doi":"10.1111/jbi.14979","DOIUrl":"10.1111/jbi.14979","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>In continuous environments, niche limits of species often determine their distribution limits. However, when these limits spatially coincide with a perceived dispersal barrier, the determinants of species' ranges may be confounded. We investigate the distribution pattern of the Brown Hornbill (Aves: Bucerotidae), which spans significant riverine barriers, but stops south of the Brahmaputra River. Considering its preference for low-elevation evergreen forests, we posit that the lack of sufficient habitats north of the Brahmaputra prevents dispersal of the Brown Hornbill, and not the river itself.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>The Brahmaputra valley and the Indo-Burma hotspot.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxa</h3>\u0000 \u0000 <p><i>Anorrhinus austeni</i>, <i>Aceros nipalensis.</i></p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We analysed citizen-science occurrence data on hornbill presence against a suite of climatic, canopy-specific and topographical predictors to model the environmental niche of the Brown Hornbill. We used presence-only maximum entropy modelling in an information theoretic framework, in conjunction with constructing binary logistic regression models using presence and pseudoabsence data. We compared niche models of the Brown Hornbill and the Rufous-necked hornbill, a close relative with a similar distribution, but which has spanned the Brahmaputra River.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Despite the presence of suitable wet-evergreen forests north of the Brahmaputra River, the hilly terrains in the region act as a biogeographic barrier for the Brown Hornbill, which prefers lowland evergreen forests. Further, highly suitable regions for the Brown and the Rufous-necked Hornbills precisely delineate low and high-elevation evergreen forests respectively, indicating that these birds are separated along an elevational axis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>The Brahmaputra River lies at the cusp of two subtly different environmental regimes. It may therefore serve as the niche limit for certain organisms and not as a physical obstacle to their dispersal. Our study implicitly predicts how widespread deforestation prevalent in the lowland evergreen forests of this region adversely impacts the distributions of organisms that depend on them, such as the Brown Hornbill. ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14979","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental considerations support the use of artificial sentinel prey—a comment on Rodriguez-Campbell et al","authors":"Marco Ferrante, Andy G. Howe, Gabor L. Lövei","doi":"10.1111/jbi.14978","DOIUrl":"10.1111/jbi.14978","url":null,"abstract":"<p>Predation is a crucial interaction in ecosystems, transferring energy between trophic levels, enhancing ecosystem stability through its impact on herbivore populations, promoting species diversity, and exerting evolutionary pressure. Predation may also provide benefits for humans: preying on pest species translates into biological control with enormous economic value. Ecologists have long sought to quantify predation, which is challenging, especially by and on invertebrates.</p><p>One of the approaches is the sentinel method, when a known number of prey items is exposed under field conditions for a specific period (usually 24 h), and subsequently recording the numbers of prey that have been attacked, consumed or disappeared. Such prey can be real or artificial. Speight and Lawton (<span>1976</span>) exposed <i>Drosophila</i> pupae and from their rate of disappearance attempted to quantify beetle predation in wheat fields. Turner (<span>1961</span>) used artificial sentinels made of a mixture of flour and lard to quantify insectivorous bird predation on differently coloured prey. The use of real sentinels creates a more “natural” set of conditions, while artificial sentinels may allow the identification of predators from attack marks (Howe et al., <span>2009</span>). Since the formal description of the method (Howe et al., <span>2009</span>), there have been numerous articles from virtually all continents that sought to identify various aspects of predation (Lövei & Ferrante, <span>2017</span>). The use of sentinel prey has also been recommended to characterise natural pest control as an ecosystem service (Meyer et al., <span>2015</span>).</p><p>In an international experiment, Rodriguez-Campbell et al. (<span>2024</span>) measured predation rates using live and dead <i>Zophobas morio</i> larvae and artificial caterpillars made of modelling clay with the intention of “validating” the efficacy of artificial sentinel prey. They found no significant differences in predation rates measured with live and dead larvae, whereas patterns of predation measured with artificial sentinel prey were not always consistent with those recorded using real ones. The authors concluded that artificial sentinel prey are inadequate for comparing predation rates across sites and suggested that this approach should be abandoned for biogeographical studies. In this commentary, we aim to highlight certain logical fallacies in the study by Rodriguez-Campbell et al. (<span>2024</span>), discuss some misunderstandings regarding the use of artificial sentinel prey, and provide recommendations for best practice.</p><p>The first fallacy is the assumption that by using real prey we can quantify actual predation levels because “<i>Live prey should most closely reflect predation on wild prey; dead prey have realistic visual and scent cues but lack movement and behavioural cues; and clay prey have only coarsely realistic visual cues</i>.” Rodriguez-Campbell et al. acknowledge th","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14978","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}