Natural and social sciences of Patagonia, Journal Year: 2020, Volume and Issue: unknown, P. 293 - 334
Published: Jan. 1, 2020
Language: Английский
Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)
Published: June 29, 2018
Invasive reptilian predators can have substantial impacts on native species and ecosystems. Tegu lizards are widely distributed in South America east of the Andes, popular international live animal trade. Two established Florida (U.S.A.) - Salvator merianae (Argentine black white tegu) Tupinambis teguixin sensu lato (gold a third has been recorded there- S. rufescens (red tegu). We built distribution models (SDMs) using 5 approaches (logistic regression, multivariate adaptive regression splines, boosted trees, random forest, maximum entropy) based data from ranges. then projected these to North develop hypotheses for potential tegu distributions. Our results suggest that much southern United States northern México probably contains suitable habitat one or more species. had higher suitability semi-arid areas, whereas T. mesic areas. propose is not only state where taxa could become established, early detection rapid response programs targeting potentially elsewhere help prevent establishment abate negative
Language: Английский
Citations
55
PLoS ONE, Journal Year: 2021, Volume and Issue: 16(3), P. e0245877 - e0245877
Published: March 10, 2021
The Argentine Black and White Tegu ( Salvator merianae , formerly Tupinambis ) is a large lizard from South America. Now established invasive in southern Florida, it poses threats to populations of many native species. Models suggest much the United States may contain suitable temperature regimes for this species, yet there considerable uncertainty regarding either potential range expansion northward out tropical subtropical zones or species establishing elsewhere following additional independent introductions. We evaluated survival, body temperature, duration timing winter dormancy, health wild-caught tegus Florida held semi-natural enclosures over year Auburn, Alabama (> 900 km northwest capture location). Nine twelve lizards emerged dormancy seven survived greater-than-one-year study. Average length (176 d) was greater than that reported females remained dormant longer males. Tegus grew rapidly throughout study presence sperm testes males previtellogenic early vitellogenic follicles female ovaries at end our animals would have been capable reproduction spring. survival overall majority adult suggests weather climate patterns are unlikely prevent introduction areas far their current range.
Language: Английский
Citations
19
Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: April 5, 2023
Herbivory evolved independently in several tetrapod lineages during the Late Carboniferous and became more widespread throughout Permian Period, eventually leading to basic structure of modern terrestrial ecosystems. Here we report a new taxon edaphosaurid synapsid based on two fossils recovered from Moscovian-age cannel coal Linton, Ohio, which interpret as an omnivore-low-fibre herbivore. Melanedaphodon hovaneci gen. et sp. nov. provides earliest record date is one oldest known synapsids. Using high-resolution X-ray micro-computed tomography, provide comprehensive description that reveals similarities between early (Cisuralian) members Edaphosauridae. The presence large bulbous, cusped, marginal teeth alongside moderately-developed palatal battery, distinguishes all other species Edaphosauridae suggests adaptations for processing tough plant material already appeared among Furthermore, propose durophagy may have provided pathway exploit resources
Language: Английский
Citations
5
Animals, Journal Year: 2023, Volume and Issue: 13(15), P. 2536 - 2536
Published: Aug. 6, 2023
Assessing the trophic niche and interspecific relationships between related species determining how maintain differences in nutritional niches while coexisting same area are important topics ecological research. Therefore, exploring mechanism of food resource utilization, competition coexistence among distributed region is important. In this study, we used fecal samples metagenome sequencing technology to study plant feeding habits mechanisms Tibetan macaques (Macaca thibetana) grey snub-nosed monkeys (Rhinopithecus brelichi) within area. winter 2020, collected a total 40 from monkeys; those, 29 were considered valid analyzed using DNA metabarcoding. The results showed that winter, consumed plants 117 families 184 genera, whereas 109 165 genera. Diversity analysis revealed there was significant difference composition monkeys. had broader width than at family genus levels. almost entirely overlapped (0.99). Our research provides detailed dietary data for valuable information can aid conservation efforts targeting these species.
Language: Английский
Citations
5
Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: Nov. 30, 2023
Species' ecological niches are frequently analysed to gain insights into how anthropogenic changes affect biodiversity. Coping with these often involves shifts in niche expression, which can disrupt local biotic interactions. Secondary contact zones, where competition and segregation commonly occur, ideal for studying the factors influencing species' niches. In this study, we investigated effect of climate landscape on two viper species, Vipera aspis latastei, across three zones northern Iberia, characterized by varying levels alteration. Using overlap tests, models spatial analyses observed variation expression resulting from different abiotic conditions each area. Rather than segregation, high overlap, suggesting convergence. A pattern asymmetrical was identified all driven climatic tolerances environmental V. generally exhibited a wider niche, except southernmost zone pure Mediterranean favored latastei. Human-induced intensified asymmetry, favoring most generalist over specialist increasing habitat likely competition. This study presents comprehensive analysis at range margins, anticipating heightened impact The methodological framework implemented here, our findings, hold significant relevance biodiversity management conservation human-impacted areas.
Language: Английский
Citations
5
Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(6), P. 2796 - 2813
Published: Feb. 8, 2021
Abstract As shown from several long‐term and time‐intensive studies, closely related, sympatric species can impose strong selection on one another, leading to dramatic examples of phenotypic evolution. Here, we use occurrence data identify clusters Sceloporus lizard test whether tend coexist with other that differ in body size, as would expect when there is competition between congeners. We found be grouped into 16 unique bioregions. Bioregions are located at higher latitudes larger have fewer species, following Rapoport's rule the latitudinal diversity gradient. Species richness was positively correlated number biomes elevation heterogeneity each bioregion. Additionally, most bioregions show signs phylogenetic underdispersion, meaning related occur close geographic proximity. Finally, although similar size cluster geographically, small‐bodied more often sympatry larger‐bodied than expected by chance alone, whereas large‐bodied geographically phylogenetically. These results suggest community composition extant result allopatric evolution, move different biomes, interspecies interactions, sizes. Our phyloinformatic approach offers detailed insights how a clade composed ecologically morphologically disparate distributed over large space evolutionary time.
Language: Английский
Citations
12
Journal for Nature Conservation, Journal Year: 2022, Volume and Issue: 68, P. 126210 - 126210
Published: May 23, 2022
Language: Английский
Citations
3
Animals, Journal Year: 2024, Volume and Issue: 14(5), P. 815 - 815
Published: March 6, 2024
Insectivorous bats are generalist predators and can flexibly respond to fluctuations in the distribution abundance of insect prey. To better understand effects on arthropod pests, types pests eaten by response prey need be determined. In this study, we performed DNA metabarcoding examine composition pest diversity diets four insectivorous species (Hipposideros armiger, Taphozous melanopogon, Aselliscus stoliczkanus, Miniopterus fuliginosus). We evaluated correlation between bat activity resources assessed dietary niche similarity breadth among factors that influence consumption bats. found these included arthropods from 23 orders 200 families, dominated Lepidoptera, Coleoptera, Diptera. The proportion agricultural diet each exceeded 40% comprised 713 including those caused severe economic losses. Bats responded availability insects. For example, a higher insects, especially led an increase duration activity. areas with more abundant number passes also increased. composition, diversity, niches differed were particularly significant H. armiger T. melanopogon; width was greatest A. stoliczkanus narrowest armiger. correlated their morphological echolocation traits. Larger preyed insects order whereas consuming Lepidoptera increased as body size decreased. emitted calls high peak frequency Mantodea. Our results suggest differentiation promotes coexistence different increases ability consume pests. findings provide greater insights into role highlight importance combining conservation integrated management.
Language: Английский
Citations
0
Natural and social sciences of Patagonia, Journal Year: 2020, Volume and Issue: unknown, P. 293 - 334
Published: Jan. 1, 2020
Language: Английский
Citations
2