Global economic costs of mammal invasions

Landscape heterogeneity can partially offset negative effects of habitat loss on mammalian biodiversity in agroecosystems

“…Thus, our study highlights that Savannas' loss may also be favouring invasive species. Considering the importance of the Cerrado for agricultural production in Brazil (Strassburg et al., 2017), preserving and restoring Savannas can help control invasive species and prevent massive economic losses (Wang et al., 2023).…”

“…Increasing landscape heterogeneity helps controlling the occurrence of hares and dogs in landscapes predominantly covered by native vegetation (>40% cover), or the occurrence of the wild boar in deforested landscapes. Considering that the Brazilian Native Vegetation Protection Law requires the maintenance of less than 40% of native vegetation and that the study region as a whole has less than 20% of native remnants, the increase in local landscape heterogeneity can mainly control the occurrence of wild boar, one of the invasive species that cause the worst damage to agriculture globally (Wang et al., 2023).…”

“…Regarding invasive species, the effects of landscape heterogeneity not only varied across species-between smaller (European hares and domestic dogs) and larger invasive species (wild Protection Law requires the maintenance of less than 40% of native vegetation and that the study region as a whole has less than 20% of native remnants, the increase in local landscape heterogeneity can mainly control the occurrence of wild boar, one of the invasive species that cause the worst damage to agriculture globally (Wang et al, 2023).…”

“…To address the effects of the components of agricultural landscape simplification on biotic communities, we sampled multiple sites in native and agricultural areas across 55 landscapes—sampling units selected to maximised uncorrelated variation between landscape heterogeneity and native vegetation cover—in a global conservation hotspot and a key agricultural commodity production area—the Brazilian Savanna, Cerrado (Strassburg et al., 2017). We focused on medium and large‐bodied mammals as they play key ecological roles (Lacher et al., 2019), move through and use agricultural areas (Ferreira et al., 2018), and include invasive species that cause severe impacts to agriculture (Wang et al., 2023). By applying a model selection approach, we compared hypotheses considering the individual effects of either landscape heterogeneity or native vegetation cover, as well as their additive and interactive effects, on both native and invasive mammal assemblages.…”

Managing the Conflict of Human–Wildlife Coexistence: A Community-Based Approach

“…The ability of wild boars to adapt swiftly and readily to their habitat can cause numerous problems in agricultural areas and have significant indirect economic effects [4,27]. These impacts correspond mainly to damage and management costs, while agriculture, the environment, government stakeholders and other sectors are the primary recipients of these costs [28]. This phenomenon has inevitably created humanboar conflicts due to the destruction of fruit crops, disturbance or threats to residents, the spread of diseases such as leptospirosis (Leptospira spp.)…”