The effect of local habitat and spatial connectivity on urban seed predation

American Journal of Botany, Год журнала: 2024, Номер 111(5)

Опубликована: Май 1, 2024

During the last centuries, area covered by urban landscapes is increasing all over world. Urbanization can change local habitats and decrease connectivity among these habitats, with important consequences for species interactions. While several studies have found a major imprint of urbanization on plant-insect interactions, effects seed predation remain largely unexplored.

Язык: Английский

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Balancing Carbohydrate-biased Urban Nutritional landscapes: Can Prey Subsidies Alter Ant Behavior?

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

As urbanization changes our environment, species that share cities must adapt to changing abiotic conditions. Ant found in the most urbanized spaces within urban habitat mosaic cope with altered nutritional landscapes, highly reduced arthropod prey availability and an abundance of high carbohydrate human food-waste. Outside cities, ants who consume high-carbohydrate diets are often more voracious predators relative conspecifics balanced diets. Therefore, we hypothesized habitats than those lower stress habitats. To better understand this relationship, assessed predatory behaviors Tetramorium immigrans colonies city parks street medians before after supplementing their insect (house crickets; Acheta domesticus). Prior cricket supplements, T. discovered proxy at equal rates during predation trials. However, workers attacked removed significantly faster compared parks. After 12 weeks displayed slower supplementation, while were attack remove supplements. When observed following summer, returned levels similar initial trials, even previous This study provides a new perspective on how food waste can influence ecologically dominant ant immigrans.

Язык: Английский

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Calling Males and Tadpole Tales

Опубликована: Сен. 3, 2024

The aim of this thesis is to understand the ecological and evolutionary implications urbanization across multiple life stages in túngara frog. Throughout thesis, I sought investigate changes phenotypes selection pressures response (Figure 1). Specifically, better relationship sexual signals urban pressures, comprehensively characterize effects on many species (Chapter 2). In Chapter 3, look explicitly at direct two important sensory pollutants environments, artificial light night (ALAN) noise pollution, male breeding behavior. exposed forest sites, naïve conditions, ALAN, their combination. investigated patterns attraction repulsion, timing behavior, calling behavior males these various conditions. 4, continued examining isolated combined ALAN now quantifying potential via receiver behaviors. broadcast synthesized playbacks simulating quantified number approaches from mates (female frogs), predators (fringe-lipped bats) under different Additionally, examined if conditions altered preferences both females bats a field setting. 5, development tadpoles, utilizing reciprocal transplant experiment between populations examine intraand intergenerational early developmental stages. 6, provide an overview synthesis my research.

Язык: Английский

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Soil Physical Properties Affect Herbivory of Lampronadata cristata in a Cork Oak Forest

Ecology and Evolution, Год журнала: 2024, Номер 14(11)

Опубликована: Ноя. 1, 2024

ABSTRACT Studies have reported the important role of soil properties in regulating insect herbivory under controlled conditions or at relatively large scales. However, whether fine‐scale variation affects natural forests is still unclear. We selected a ca. 300 ha Quercus variabilis forest area where leaf damage was mainly caused by Lampronadata cristata (Lepidoptera: Notodontidae) and set 200 10 × m plots within area. examined (percent damaged) on Q. correlated it to tree characteristics. Insect decreased with sand percentage bulk density increased DBH height. Effects were partly mediated Our results indicated that physical may significant effects directly influencing herbivores need complete their life cycle soil, indirectly affecting through height which reflects total biomass available herbivore. This study help understand complex relationship between plant–insect interactions ecosystems.

Язык: Английский

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Sap-feeding insects do not respond uniformly to urbanization: the role of urban green spaces and species characteristics

Global Ecology and Conservation, Год журнала: 2024, Номер 57, С. e03397 - e03397

Опубликована: Дек. 31, 2024

Язык: Английский

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