Beatriz Tavares Pinheiro , Sara Miranda Almeida , Marcos Pérsio Dantas Santos
{"title":"The impact of rare and common species on the functional diversity of forest birds in a palm-dominated landscape in the Eastern Amazon","authors":"Beatriz Tavares Pinheiro , Sara Miranda Almeida , Marcos Pérsio Dantas Santos","doi":"10.1016/j.actao.2025.104060","DOIUrl":"10.1016/j.actao.2025.104060","url":null,"abstract":"<div><div>The advance of industrial agriculture in the Amazon is a major threat to biodiversity. It is causing intense deforestation to make way for cattle ranching and monocultures such as oil palm. Forest loss can alter the distribution and population size of rare species, which are often limited in number or range, affecting the functional structure of communities and the ecosystem services they provide. Here, we assessed the contribution of rare and common species to the functional diversity of forest bird communities in a landscape dominated by oil palm plantations. We sampled birds in plantations and forest fragments in the eastern Amazon, Brazil. A total of 232 bird species were recorded, 198 in the fragments and 53 in the plantations. We calculated a rarity index for each species occurring in forest fragments, combining local abundance, geographic range, and habitat specificity. We calculated functional richness (FRic), functional originality (FOri), functional specialization (FSpe), and community-weighted trait means (CWM), and then compared these metrics between forest and plantation communities across three scenarios: 1) total species <em>pool</em> recorded in forest <em>versus</em> plantation, 2) removal of the rarest species, and 3) removal of common species. Removal of rare species increased functional diversity but decreased functional redundancy. Conversely, removal of common species decreased FOri and FSpe values, demonstrating that common forest bird species make unique functional contributions. We conclude that the loss of both rare and common species affects forest bird communities. Therefore, conservation and protection of forested areas is essential to ensure ecosystem health and resilience.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"126 ","pages":"Article 104060"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Alisson Borges Miranda Santos , Cléber Rodrigo de Souza , Fernanda Coelho de Souza , Natália de Aguiar-Campos , Vinicius Andrade Maia , Nathalle Cristine Alencar Fagundes , Aurélio de Jesus Rodrigues Pais , Gabriela Gomes Pires , Mariana Caroline Moreira Morelli , Jean Daniel Morel , Rubens Manoel dos Santos
{"title":"Taxonomic identity, but not evolutionary relatedness, determines the carbon stock and uptake of tropical forests trees","authors":"Alisson Borges Miranda Santos , Cléber Rodrigo de Souza , Fernanda Coelho de Souza , Natália de Aguiar-Campos , Vinicius Andrade Maia , Nathalle Cristine Alencar Fagundes , Aurélio de Jesus Rodrigues Pais , Gabriela Gomes Pires , Mariana Caroline Moreira Morelli , Jean Daniel Morel , Rubens Manoel dos Santos","doi":"10.1016/j.actao.2025.104065","DOIUrl":"10.1016/j.actao.2025.104065","url":null,"abstract":"<div><div>Carbon stock and uptake are among the main ecosystem services provided by tropical forests. Understanding the role of different drivers in current patterns of carbon stock and uptake is critical to predicting tropical forest responses to environmental changes. That said, taxonomic identity and evolutionary relatedness among <em>taxa</em> may synthesize intrinsic functional characteristics and provide insight into these patterns. Here we investigated the main ecological drivers (taxonomic vs. environmental effects) and the evolutionary legacy on the expression of two important variables: carbon stock and carbon uptake. The dataset used are composed by tropical forests sites located in the southeast of Brazil along a climatic gradient including evergreen forests, semideciduous forests and deciduous forests. Relying on forest inventory data from 30 tropical forest sites (33.86 ha), we calculated individual tree carbon stocks and obtained two variables at the population level (species <em>per</em> site): average carbon stock (ton/ha) and average carbon uptake (ton/ha/year). These variables were used joint to phylogenetic trees and analysis to evaluate the main factors explained the variables variation and the evolutionary fingerprint on them. Variations in carbon stock and uptake by individual trees were mostly determined by taxonomic identity (28.7% and 26.7%, respectively) rather than environmental factors (7.1% and 8.9%, respectively), but evolutionary relatedness did not predict similarity among species. Our results indicate that the ability of species to store and absorb carbon depend on their intrinsic characteristics, although these are not shared among closely related <em>taxa</em>. Climate projections predict the loss of species unable to adapt to novel conditions, which, in light of our results, could impact tropical carbon dynamics. Although evolutionary relatedness does not predict similarity in terms of function at the scale of our study (suggesting lability of traits related to carbon storage), species losses indicate that environmental changes are beyond species’ ability to adapt to changes.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"126 ","pages":"Article 104065"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"Unveiling the association of mangrove flowering phenology on the dynamics of insect abundance","authors":"Tania Chatterjee , Souparna Chakrabarty , Bulganin Mitra , Punarbasu Chaudhuri","doi":"10.1016/j.actao.2024.104052","DOIUrl":"10.1016/j.actao.2024.104052","url":null,"abstract":"<div><div>Mangroves are ecologically unique ecosystems supporting large biodiversity. Climate change and anthropogenic interferences led to continuous decline of mangroves worldwide. Simultaneously, continuous decline in pollinators, have put these primarily insect-pollinated ecosystems under threat. Therefore, to understand seasonal and interannual variation in floral-visitor population, study of insect-visitor abundance in relation to flowering phenology is critical. In this context, present study (2022–2023) was conducted in the mangrove belt of Purba Medinipur, West Bengal, India. We observed quantitative floral availability as flowering phenology of four dominant mangrove species: <em>Avicennia marina, Avicennia officinalis, Aegiceras corniculatum</em>, and <em>Acanthus ilicifolius</em>. We also examined the seasonal and interannual variation in insect abundance within the mangrove community via pan traps. To identify potential pollinator groups among insects from the pan traps, we studied foraging behaviour of these insect visitors separately. Finally, we investigated the relationship between floral availability and insect-visitor abundance.</div><div>In this study, a total 35 insect species of eight orders were collected across all pan traps, among which, 19 species were classified as potential pollinators. Hymenoptera was most abundant in pan trap captures, followed by Diptera, Lepidoptera and Coleoptera. Significantly higher insect abundance was observed during the peak flowering at community-level. There was no interannual variation in insect abundance between two years. This is the first comprehensive quantitative study identifying potential mangrove pollinators and demonstrating their positive relationship with floral availability, which affecting pollinator abundance. This also indicates that, steady supply of floral availability is required for maintaining the pollinator abundance in the community.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"126 ","pages":"Article 104052"},"PeriodicalIF":1.3,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
E. Elias Johnson , D. Alejandro Espinosa-Lucas , R. Darío Pérez-García , Israel Solano-Zavaleta , J. Jaime Zúñiga-Vega , Gonzalo A. Ramírez-Cruz
{"title":"Keystone species in an urban environment: Do raptors control the Mexican gray squirrel in Mexico City?","authors":"E. Elias Johnson , D. Alejandro Espinosa-Lucas , R. Darío Pérez-García , Israel Solano-Zavaleta , J. Jaime Zúñiga-Vega , Gonzalo A. Ramírez-Cruz","doi":"10.1016/j.actao.2024.104034","DOIUrl":"10.1016/j.actao.2024.104034","url":null,"abstract":"<div><div>Urbanization has forced animals to respond to novel environments. One of the basic questions in urban ecology is if ecological processes that occur in natural conditions also occur in urban environments. In natural ecosystems, key predators can limit prey abundance and have a widespread effect on trophic levels. Here, we examine a predator-prey interaction in Mexico City, an urban ecosystem where prey can be evaluated in the presence or absence of apex predators. Nearly all original ecosystems in Mexico City have been transformed for human purposes. Many of the green spaces in the city contain populations of the Mexican gray squirrel, a species native to this area. These green spaces are also inhabited by different species of raptors, the most frequent being Harris's hawk, Cooper's hawk, and sharp-shinned hawk. Little is known about the interactions between raptors and squirrels, particularly how different environmental factors influence this ecological relationship. We do know, however, that raptors prey on squirrels. We predicted that in parks where raptors were present, there would be fewer squirrels than in parks where there were no raptors. We studied the relationship between raptors and squirrels using occupancy models, which also allowed us to evaluate environmental factors that affect the presence of both squirrels and raptors. We also tested if the presence of raptors influenced the occupancy probability of squirrels, and vice versa. Lastly, we estimated the abundance of squirrels in parks, both where raptors were present and where they were absent. Contrary to our predictions, in our first two sampling periods we found a positive relationship between the presence of raptors and squirrel abundance, but this relationship was absent during our second two survey periods, which was due to a decline in squirrel abundance in parks where raptors were present. These results suggest that predator-prey interactions occur in urban settings much as they do under natural conditions, but that other factors unique to urbanization can also impact the abundance of raptors and squirrels. Our findings also suggest that raptors might be an effective means of controlling squirrel populations under some conditions.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104034"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Christian Damgaard, Jesper Leth Bak, Morten Strandberg, Rikke Reisner Hansen
{"title":"The resilience of heathland ecosystems: A working hypothesis","authors":"Christian Damgaard, Jesper Leth Bak, Morten Strandberg, Rikke Reisner Hansen","doi":"10.1016/j.actao.2024.104037","DOIUrl":"10.1016/j.actao.2024.104037","url":null,"abstract":"<div><div>Ecosystem stability and resilience are vital characteristics for understanding key ecosystem dynamics, conservation management and restoration issues. However, for heathlands and other semi-natural ecosystems investigating stability and resilience demands a different approach from that of more stable ecosystems closer to a successional climax state, since we need to distinguish between 1) <em>disturbances</em> that are needed to maintain the ecosystem in a habitat-characteristic state, and 2) <em>pressures</em> that may perturb the ecosystem away from a characteristic state. Here, we suggest methods to measure and predict resilience in Atlantic dry heathland ecosystems. This will be achieved by outlining a working hypothesis of the most important factors that regulate the stability and resilience of semi-natural heathland ecosystems. At the center of the proposed hypothesis is the amount of nitrogen in the soil that is available for plant growth and how the nitrogen-cycling pathway is formed by dominant species of heathland ecosystems. Furthermore, we will discuss possible ways to quantify semi-natural ecosystem resilience and suggest a research program that would allow us to test the outlined working hypothesis in semi-natural ecosystems and provide quantitative information for making ecological predictions on heathland stability and resilience. This investigation has direct consequences for how heathland conservation may be planned in a way that protects both resilience, structure, function and the characteristic species of heathlands. It could also form an ecological basis for investigating anthropogenic practices and ways to protect its associated culture-historical values.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104037"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Amelia S.N. Kumala, Devi N. Choesin, Ichsan Suwandhi
{"title":"Relationship between seagrass community structure and carbon stocks on the coasts of Karimunjawa Marine National Park, Indonesia","authors":"Amelia S.N. Kumala, Devi N. Choesin, Ichsan Suwandhi","doi":"10.1016/j.actao.2024.104030","DOIUrl":"10.1016/j.actao.2024.104030","url":null,"abstract":"<div><div>The seagrass ecosystem is considered one of the most effective coastal ecosystems in storing carbon. Carbon stock estimation for a certain ecosystem is highly affected by factors such as species diversity and habitat type. This study aims to investigate the relationship between plant community structure and carbon stocks in the seagrass ecosystem using a case study of six coastal sites in Karimunjawa Marine National Park, Indonesia. In this region, eight seagrass species were recorded, i.e., <em>Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Halodule pinifolia, Halophila ovalis, Halophila minor, Syringodium isoetifolium,</em> and <em>Oceana serrulata</em>. From the six study sites, the highest estimated carbon stock was 426.2 Mg C ha<sup>−1</sup> (Site 5; Telaga, dominated by <em>E. acoroides</em>). Meanwhile, the lowest estimated carbon stock was 127.4 Mg C ha<sup>−1</sup> (Site 4; Koin, dominated by <em>T. hemprichii</em>)<em>.</em> The density of <em>E. acoroides</em> was positively correlated with the total seagrass biomass carbon stocks (r = 0.97; p < 0.01), while its dominance was positively correlated with sediment carbon stocks (r = 0.92; p < 0.05) and total seagrass ecosystem carbon stocks (r = 0.92; p < 0.05). Seagrass ecosystems with different community structures showed different carbon storage capacities. Seagrass ecosystems dominated by large-sized species such as <em>E. acoroides</em> showed higher estimated carbon stocks thus suggesting the importance of considering the variability of community structure in managing seagrass ecosystems for carbon sequestration and storage.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104030"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Kohei Nakatsuji , Yuta Kobayashi , Tomohiro Yoshida
{"title":"Microtopography and vegetation generate uneven predation pressure on forest insects","authors":"Kohei Nakatsuji , Yuta Kobayashi , Tomohiro Yoshida","doi":"10.1016/j.actao.2024.104031","DOIUrl":"10.1016/j.actao.2024.104031","url":null,"abstract":"<div><div>Predation plays an important role in the coexistence of multiple species within forest ecosystems. It is spatially heterogeneous and influenced by the surrounding environment at different spatial scales. Studies focusing on multiple environmental factors in systems with high spatial complexity are lacking, but elucidating the effects of local environmental factors within a forest could assist in understanding the effects of local differences in predation pressures on multispecies coexistence. Here, we examined the effects of microtopography and vegetation on predation pressure using the model caterpillar method. We hypothesized that differences in microtopography and vegetation types would result in different predation pressures on invertebrates within a forest. Insect attacks were dominant throughout the study period. The attack rates on the model caterpillars were also lower on hill tops and evergreen deciduous trees. Predation pressure within the forest was heterogeneous and independently influenced by topography and vegetation type. Our results suggest that environmental heterogeneity within forests may lead to highly variable predation pressures and affect multispecies coexistence. This study suggests that microtopography and vegetation types within forests should be considered for biological control.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104031"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"Seasonal changes in altitudinal patterns of bird species richness in a temperate low-elevation mountain","authors":"Daichi Iijima, Takeshi Osawa","doi":"10.1016/j.actao.2024.104033","DOIUrl":"10.1016/j.actao.2024.104033","url":null,"abstract":"<div><div>Mountain environments change rapidly over short distances along altitudinal gradients, providing an ideal system for exploring the mechanisms that shape biodiversity gradients. Species richness is the most studied diversity metric in mountains, and altitudinal patterns and their shaping mechanisms have been investigated worldwide. Although the altitudinal patterns of species richness in breeding bird assemblages have been extensively studied, less attention has been paid to seasonal changes in patterns between winter and summer. Furthermore, the effects of severe climate in high-elevation areas on seasonal changes in the altitudinal pattern of species richness in insular mountains remain unclear. We investigated changes in the pattern between the breeding and wintering seasons using field and literature surveys in Mount Tsukuba (877 m a.s.l.), central Japan. Temperatures at the middle elevations of the slope are relatively higher than those at the foot of the mountain in winter. The mountain is covered with forests up to its summit. We found that the altitudinal pattern of species richness was the low-plateau during the wintering season. Low-elevation areas were havens for wintering species, whereas high-elevation areas were impoverished in wintering species. Conversely, there was no association between elevation and species richness during the breeding season. Our study suggests that the relaxation of severe climates in high-elevation areas during winter and verdant forests in the highlands during summer are critical mechanisms driving seasonal changes in the altitudinal pattern of species richness. Furthermore, we highlight that comprehensive monitoring, including wintering seasons, is essential for detecting the changes in the diversity patterns of mountain bird assemblages due to the shift in the peak of wintering species richness under ongoing climate change.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104033"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Jerónimo Vázquez-Ramírez , José Eduardo Salgado-Cristóbal
{"title":"Christmas-related moss harvesting promotes the recruitment of the endangered conifer Abies hickelii","authors":"Jerónimo Vázquez-Ramírez , José Eduardo Salgado-Cristóbal","doi":"10.1016/j.actao.2024.104032","DOIUrl":"10.1016/j.actao.2024.104032","url":null,"abstract":"<div><div>The harvesting of mosses for ornamental purposes is a common activity worldwide. In some parts of Latin America and Europe, this activity is directly linked to the Catholic tradition of making nativity scenes at Christmas. At the end of each year, rural communities extract the moss layer from temperate forests and sell it in regional markets. The ecological impacts of this activity on temperate ecosystems and the vascular plants that inhabit them are poorly documented in the literature. Here, we determine the effects of moss layer harvest on the recruitment of the endangered species <em>Abies hickelii</em> in eastern Mexico. To this end, we conducted a series of in situ studies to determine the effects of moss layer harvest on (i) seeds and established seedlings, (ii) seedling emergence and (iii) seedling establishment of this conifer. We found that moss layer removal had positive and neutral effects on the early life stages of <em>A. hickelii</em>. Moss harvesting had minimal impact on the total seed input from the 2017–2018 mast event, as it occurred weeks before the peak of <em>A. hickelii</em> seed dispersal. After two years, the absence of the moss layer was associated with a higher number of emerged and established seedlings. We discuss the ecological implications of our findings and make recommendations for Christmas-related moss harvesting and future <em>A. hickelii</em> conservation efforts. Finally, although we found no significant negative effects of moss harvesting on <em>A. hickelii</em>, we only studied this one species, and the effects of this activity on other species are still unknown, so we recommend a cautious approach to moss harvesting.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104032"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1146609X24000547/pdfft?md5=32d7691439ac89d5e85ab30a7922e713&pid=1-s2.0-S1146609X24000547-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Hyperpredation as a mechanism responsible for the impact of introduced populations on native biodiversity","authors":"Marcelo H. Cassini, Luciano Rivas","doi":"10.1016/j.actao.2024.104035","DOIUrl":"10.1016/j.actao.2024.104035","url":null,"abstract":"<div><div>Species that have been introduced into regions outside their native range can damage biodiversity and natural ecosystems. Hyperpredation is the process by which an introduced primary prey enables a generalist predator to increase dramatically in numbers leading to sustained abnormally high predation of secondary native prey. Testing the hyperpredation model is a challenging task because it has several assumptions but no exclusive predictions that are inconsistent with alternative hypotheses, for which data supporting several predictions are required to validate this hypothesis. We reviewed studies that postulate hyperpredation as a mechanism explaining the impact of introduced species. We used Scopus and Google Scholar databases for finding publications and Prisma protocol for selecting them. No one of the 44 selected publications provided enough information to demonstrate hyperpredation as the mechanism responsible for the impact of introduced prey populations on native biodiversity because (i) in all studies there were other ecological mechanisms that could explain the observed decline of native prey; (ii) no study have considered all the assumptions of the hyperpredation model, nor found positive results for all its predictions, and (iii) most studies used observational, descriptive method instead of field experiments that explicitly try to refute alternative hypotheses.</div></div>","PeriodicalId":55564,"journal":{"name":"Acta Oecologica-International Journal of Ecology","volume":"125 ","pages":"Article 104035"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}