Protected areas and the future of insect conservation

Trends in Ecology & Evolution, Journal Year: 2022, Volume and Issue: 38(1), P. 85 - 95

Published: Oct. 5, 2022

Anthropogenic pressures are driving insect declines across the world. Although protected areas (PAs) play a prominent role in safeguarding many vertebrate species from human-induced threats, insects not widely considered when designing PA systems or building strategies for management. We review effectiveness of PAs conservation and find substantial taxonomic geographic gaps knowledge. Most research focuses on representation species, few studies assess threats to that effective management can conservation. propose four-step agenda help ensure central efforts expand global network under Post-2020 Global Biodiversity Framework.

Language: Английский

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The impact of habitat loss and fragmentation on biodiversity in global protected areas

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 931, P. 173004 - 173004

Published: May 4, 2024

Language: Английский

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Extinction of threatened vertebrates will lead to idiosyncratic changes in functional diversity across the world

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Aug. 27, 2021

Abstract Although species with larger body size and slow pace of life have a higher risk extinction at global scale, it is unclear whether this trend will be consistent across biogeographic realms. Here we measure the functional diversity terrestrial freshwater vertebrates in six realms predict their future changes through scenarios mimicking gradient threatened species. We show vastly different effects extinctions on between taxonomic groups realms, ranging from almost no decline to deep losses. The Indo-Malay Palearctic are particularly inclined experience drastic loss reaching 29 31%, respectively. Birds, mammals, reptiles regionally display loss, while projected losses amphibians fishes differ More efficient conservation policies should consider marked regional world.

Language: Английский

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Chimpanzees (Pan troglodytes) Indicate Mammalian Abundance Across Broad Spatial Scales

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(3)

Published: March 1, 2025

ABSTRACT Ongoing ecosystem change and biodiversity decline across the Afrotropics call for tools to monitor state of or elements extensive spatial temporal scales. We assessed relationships in co‐occurrence patterns between great apes other medium large‐bodied mammals evaluate whether ape abundance serves as a proxy mammal diversity broad used camera trap footage recorded at 22 research sites, each known harbor population chimpanzees, some additionally gorillas, 12 sub‐Saharan African countries. From ~350,000 1‐min videos 2010 2016, we estimated mammalian community metrics, including species richness, Shannon diversity, mean animal mass. then fitted Bayesian Regression Models assess potential detection rates (as abundance) these metrics. included site‐level protection status, human footprint, precipitation variance control variables. found that species, well mass were largely positive. In contrast, rate richness less clear differed according site impact context. no association diversity. Our findings suggest chimpanzees hold indicators specific communities, especially population‐level composition‐related characteristics. Declines chimpanzee populations may indicate associated declines sympatric highlight need improved conservation interventions.Changes likely precede extirpation mammals.

Language: Английский

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The Environmental Impacts of Overpopulation

Encyclopedia, Journal Year: 2025, Volume and Issue: 5(2), P. 45 - 45

Published: April 1, 2025

Overpopulation’s central role in environmental degradation is intermittently challenged. This article assesses the impact of mounting demographic pressures on six critical global sustainability challenges: deforestation, climate change, biodiversity loss, fishery depletion, water scarcity, and soil degradation. By synthesizing findings from hundreds peer-reviewed studies, offers a comprehensive review effects expanding human populations most pressing current problems. Although rate population growth worldwide slowing, numbers are expected to continue increasing Earth until end century. Current research confirms that overpopulation causes substantial potentially irreversible impacts cannot be ignored if international policy effective.

Language: Английский

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The future of endemic and threatened birds of the Amazon in the face of global climate change

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(3)

Published: March 1, 2024

The anthropogenic impacts on the environment, including deforestation and escalating emissions of greenhouse gases, have significantly contributed to global climate change that can lead alterations in ecosystems. In this context, protected areas (PAs) are pillars for biodiversity conservation by being able, example, maintain viability populations endangered species. On other hand, species range shifts do not follow limits PAs, jeopardizing these Furthermore, effectiveness PAs is consistently undermined stemming from land use, hunting activities, illegal exploitation, both within designated their adjacent zones. objectives study quantify distribution threatened endemic birds Amazon biome, evaluate protecting richness birds, analyze representativeness PAs. We found with our results suitability loss above 80 65% taxa optimistic scenario 93% pessimistic scenario. show effective Amazonian just as they ineffective most studied when analyzed individually Although some presented "Protected," future scenarios may suffer major shrinkages distributions consequently present population unviability. climatically suitable directly influence ecosystem services, fundamental maintaining balance biodiversity. Therefore, paves way actions aimed at so mitigate current extinctions due change.

Language: Английский

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Modelling the Environmental Determinants of Abundance of Two Sympatric Antelopes (Gerenuk and Grant's Gazelle)

African Journal of Ecology, Journal Year: 2025, Volume and Issue: 63(1)

Published: Jan. 1, 2025

ABSTRACT A thorough understanding of environmental variables determining the abundance species is fundamental for effective planning conservation and management wildlife their habitat, especially in managed natural systems. Most protected areas Africa afforded minimal efforts are poorly assessed increasingly faced with threats, making within challenging. We used road transect surveys to investigate anthropogenic that determine two sympatric antelope (Gerenuk gazelle, [ Litocranius walleri ] Grant's Nanger granti ]) Lake Natron partially ecosystem northern Tanzania improve these species. Fitting data a Quasi‐Poisson GLM, we found habitat type, landscape elevation, season tree cuts were most important predictors both Gerenuk gazelle more abundant grassland tended avoid degraded patches closer previous hunting sites, suggesting loss having top down impacts on distribution Further, water points during dry foraged lowland sites perhaps being targeted by hunters. Our findings strongly suggest maintaining quality minimising human activities such as may antelopes this fragile ecosystem.

Language: Английский

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A bolder conservation future for Indonesia by prioritising biodiversity, carbon and unique ecosystems in Sulawesi

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Jan. 16, 2023

As more ambitious protected area (PA) targets for the post-2020 global biodiversity framework are set beyond Aichi Target 11, renew thinking into spatial prioritisation is required to enable PA expansion that maximises environmental values. Our study focuses on biodiverse and forest-rich Indonesian island of Sulawesi, which has a terrestrial network covers 10% island. We used Marxan investigate trade-offs in design an expanded prioritised different conservation features (biodiversity, forest cover, carbon stock, karst valuable metal-rich areas) under varying island-wide coverage (17%, 30%, 50%). first scenario, existing PAs be selected, larger areas meet these targets, contrast our second allowed any part chosen, irrespective status. The vast Mekongga Bangkiriang Landscapes, Gorontalo corridor were consistently identified as high priority protection all scenarios. To through expanding current PAs, creating new corridors connect we spatially explicit three-phase approach. findings 26,508 km2 included network, potentially assisting Indonesia meeting its GBF target, if approach replicated across national or sub-national analysis. discuss various land management options other effective area-based measures (OECMs) costs deliver this strategy.

Language: Английский

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Zoogeochemistry of a protected area: Driven by anthropogenic impacts and animal behavior

Conservation Science and Practice, Journal Year: 2024, Volume and Issue: 6(5)

Published: April 10, 2024

Abstract Anthropogenic eutrophication of ecosystems is an important driver biodiversity loss. Even protected areas (PAs) may be impacted by anthropogenic nutrients, for example, from atmospheric deposition or the provision supplementary feeding. However, resultant nutrient patterns, and role local wildlife in shaping them, remain poorly understood. We investigated influences on that red deer ( Cervus elaphus ) play balance a PA Denmark. used habitat selection modeling theoretical scenarios where we varied proportion energy obtained versus natural forage compared it with nutrients removed due to hunting. show movement distribution population within are very heterogeneous likely influenced need shelter. Moreover, depending their reliance feeding, can potentially import large amounts PA, concentrate them localized hotspots. also explore potential loss hunting activities. Such indirect impacts landscapes counteract restoration conservation efforts. therefore recommend incorporating zoogeochemistry animal‐mediated connectivity between PAs anthropogenically dominated into future management plans.

Language: Английский

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How do invasive predators and their native prey respond to prescribed fire?

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(5)

Published: May 1, 2024

Abstract Fire shapes animal communities by altering resource availability and species interactions, including between predators prey. In Australia, there is particular concern that two highly damaging invasive predators, the feral cat ( Felis catus ) European red fox Vulpes vulpes ), increase their activity in recently burnt areas exert greater predation pressure on native prey due to increased exposure. We tested how prescribed fire occurrence extent, along with history, vegetation, topography, distance anthropogenic features (towns farms), affected (detection frequency) of cats, foxes, mammal community south‐eastern Australia. used camera traps quantify before after a burn statistically interacted these habitat variables affect activity. found little evidence influenced cats foxes no an effect kangaroo or small (<800 g) Medium‐sized mammals (800–2000 were negatively associated suggesting has negative impact short term. The lack clear from likely positive outcome management perspective. However, we highlight response dependent upon factors like size, severity, availability. Future experiments should incorporate GPS‐trackers record fine‐scale movements temperate ecosystems immediately best inform within protected areas.

Language: Английский

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