Climate drives the long-term ant male production in a tropical community

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

Forecasting insect responses to environmental variables at local and global spatial scales remains a crucial task in Ecology. However, predicting future requires long-term datasets, which are rarely available for insects, especially the tropics. From 2002 2017, we recorded male ant incidence of 155 species ten malaise traps on 50-ha ForestGEO plot Barro Colorado Island. In this Panamanian tropical rainforest, were deployed two weeks during wet dry seasons. Short-term changes timing flying activity pronounced, compositionally distinct assemblages flew Notably, composition these oscillated consistent 4-year cycles but did not change 16-year study period. Across time, Seasonal Auto-Regressive Integrated Moving Average model explained 75% variability production (i.e., summed across traps), responded negatively monthly maximum temperature, positively sea surface surrogate El Niño Southern Oscillation (ENSO) events. Establishing relationships allowed us forecast until 2022 when year-long climate available. Consistent with data, indicated no significant temporal trends production. simulations different scenarios found that strong ENSO events temperature impacted negatively, respectively. Our results highlight dependence both short- changes, is critical under current warming.

Language: Английский

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Forest‐Water Ecotones: Flooding Impacts on Ant Species Distribution

Austral Ecology, Journal Year: 2025, Volume and Issue: 50(1)

Published: Jan. 1, 2025

ABSTRACT Natural ecotones between forest and lake‐swamp succession impose severe environmental filters for ant fauna, compared to adjacent habitats. This filter effect may be more soil than canopy fauna. We tested this hypothesis by investigating the patterns of species occurrence, richness composition ants in a tropical river basin. established two transects (250 m) at each site, one placed ecotone (i.e., flood zone) other inside forest. Although upper lower basin had totally different composition, distribution habitats followed similar pattern both altitudes. Occurrence was interior ecotone. The occurrence were higher interior. Ant forest, seasons (dry rainy) Most importantly, imposed its unpredictable habitat conditions favoured fewer but opportunistic species, which drove these years we studied particularly dry substantial decrease lake depth. Hence, abilities best use resources from natural on new grounds might have been defined omnivorous, numerically dominant ants. abiotic particularities forest‐water are important temporal dynamics assemblages. Fluctuations water can restrict assemblages, subtle changes flooding also affect fauna effects due intensified variations seasonal dynamics.

Language: Английский

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Mutualistic interactions between plants with extrafloral nectaries and ants: ecological impacts, ant sharing among neighboring plants, and the effects of environmental conditions

Community Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

Language: Английский

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Diversity and abundance of arthropod communities from Rugezi Marshland, Northern Rwanda: call for effective and sustainable biodiversity conservation planning

Journal of Tropical Ecology, Journal Year: 2025, Volume and Issue: 41

Published: Jan. 1, 2025

Abstract Wetlands contribute to economic development through the provisioning of ecosystem services. In Rwanda, exploitation wetlands for agriculture is a recent phenomenon, introduced in response food shortages dry season and drought periods. Few studies have documented biodiversity such as high altitude Rugezi marshland; Ramsar site located north Rwanda. To fill this gap, first arthropod inventories were conducted 2023, from June July (dry season) November December (rainy at marshland. Data was collected sites northeast northwest marshland using hand collection, pitfall traps, sweep nets. Collected specimens preserved 75% ethanol identified order family levels dichotomous keys. A total 26,944 individuals arthropods sampled with 17,074 recorded during 9,870 rainy season. High abundance found (N = 14,739) compared 12,151). Using data, we that there statistically significant difference diversity between seasons sites, having higher side while had more pronounced increase site. We recommend future establish list bioindicators land use change participatory governance effective management

Language: Английский

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The preference for energetic resources is positively associated with predatory activity in ants

Ecological Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Abstract Land use changes can alter resource availability and microclimate variables in tropical ecosystems, generally altering community structure by decreasing species richness changing its composition. These affect foraging activity, nutrient preferences consequently ecosystem functions. Our aim was to assess how activity preference are influenced land microclimate. We sampled ants (Formicidae) at 32 sites undergoing conversion from natural habitats coffee systems two Neotropical biomes: the Atlantic rainforest Cerrado. assessed (amino acids, carbohydrates, lipids sodium) predation using mealworm larvae, while also measuring temperature humidity. found same foraged for different resources, likely because generalist perform these activities on ground. Furthermore, energetic resources (carbohydrates lipids) positively correlated with larvae. This indicates that limitation of contribute an increase predatory activity. Moreover, ant amino acids decreases increasing temperature, indicating prefer consume support metabolic processes. In conclusion, is primarily carried out species. addition, nutrients, driven limitations, linked increases rising temperatures decrease acids. Thus, conserving mitigating may enhance larval insect function habitats.

Language: Английский

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How the Choice of Habitat and Sampling Technique Affects Biodiversity Knowledge: The Case of Cylindromyrmex (Hymenoptera, Formicidae) in the Atlantic Forest

Sociobiology, Journal Year: 2024, Volume and Issue: 71(1), P. e9548 - e9548

Published: Feb. 23, 2024

The Atlantic Forest is a biodiversity hotspot, and myrmecologists broadly study its numerous habitats. Even so, much of remains to be discovered, the choice collection methods habitats explored directly affect results obtained, especially in case species with cryptic habits, such as Cylindromyrmex ants. ant subfamily Dorylinae has 11 genera registered Neotropics, Mayr, 1870 being lineage region. present reports new records three 13 municipalities located southeastern Brazil. It also describes effect sampling techniques on records. 78 examined herein specimens belong C. brasiliensis Emery, 1901, brevitarsus Santschi, 1925, longiceps André, 1892, were collected manually or Malaise traps. Records are distributed along Espírito Santo state, tendency towards higher mountainous All this region associated hottest months highest rainfall, suggesting possible preference for nuptial flights summer. Most occurred forested areas (93%), whereas few urban (7%). Although manual collections traps not widely used research surveys diversity, these could potentially reveal essential findings ecology.

Language: Английский

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Breakdown in seasonal dynamics of subtropical ant communities with land-cover change

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2008)

Published: Oct. 11, 2023

Concerns about widespread human-induced declines in insect populations are mounting, yet little is known how land-use change modifies both the trends and variability of communities, particularly understudied regions. Here, we examine seasonal activity patterns ants-key drivers terrestrial ecosystem functioning-vary with anthropogenic land-cover on a subtropical island landscape, whether differences temperature or species composition can explain observed patterns. Using trap captures sampled biweekly over 2 years from biodiversity monitoring network covering Okinawa Island, Japan, processed 1.2 million individuals reconstructed within across habitat types. Forest communities exhibited greater temporal than those more developed areas. time-series decomposition to deconstruct this pattern, found that sites human development ant diminished seasonality, reduced synchrony higher stochasticity compared forest cover. Our results cannot be explained by variation regional site patterns, richness among sites. study raises possibility disruptions natural functionally key may comprise an important underappreciated consequence global environmental must better understood Earth's biomes.

Language: Английский

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From leaves to whole plants: positive effects of shelter‐builders on arthropod communities are stronger in dry seasons

Biotropica, Journal Year: 2024, Volume and Issue: 56(5)

Published: July 17, 2024

Abstract Leaf shelters function as microclimatic refuges, reducing arthropod exposure to climatic fluctuations of surrounding habitats. Although facilitation is expected increase under stressful conditions, empirical studies investigating the patterns variation and magnitude effects ecosystem engineering (EE) at different spatial temporal scales are still scarce. In this study, we evaluated consequences leaf shelter created by gall‐inducers on communities Miconia ligustroides (DC.) Naudin (Melastomataceae). We how such change plant levels in a habitat subject strong seasonality. The presence M. increased diversity biomass, modified species composition both levels, during wet dry seasons. However, addition artificial season showed greater abundance, richness, biomass arthropods when compared added season. Regarding global associated with , positive effects, increasing an average 65% for years. Our study contributes better understanding EE provides new insights into importance aridity‐sensitive species.

Language: Английский

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A systematic review of the land use change effects on ant diversity in Neotropics

Biological Conservation, Journal Year: 2024, Volume and Issue: 299, P. 110778 - 110778

Published: Sept. 12, 2024

Language: Английский

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Aridity and chronic anthropogenic disturbances cause a taxonomic, functional, and phylogenetic homogenization of ant communities in a Caatinga dry forest

Biological Conservation, Journal Year: 2023, Volume and Issue: 284, P. 110151 - 110151

Published: June 16, 2023

Language: Английский

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