Beyond ecosystem services as justification for biodiversity conservation

Prendergast, Kit S.

doi:10.1111/aec.12882

Cited by 8 publications

(10 citation statements)

References 36 publications

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“…For sustainable apple production in Tasmania, and indeed abroad, beekeeping practices need to be integrated with promoting the biodiversity of native bees in farm systems to include non-crop species (Kleijn et al 2015;Senapathi et al 2015;Prendergast 2020a). Although we did not find negative associations between introduced bees and native bees, honey bees always dominated the assemblages and there was little variation in the relative proportions of honey bees and native bees, making determining potential competitive impacts difficult in this study.…”

Section: Discussionmentioning

confidence: 99%

“…If native flora are planted interspersed among the apple trees, this may encourage native bees to move into the orchards and also forage on the apple flowers (Campbell et al 2017;Wu et al 2019). Even if this does not result in spillover into apples (Nicholson et al 2020), supporting bee biodiversity is important for wildflowers in native ecosystems and the ecosystem services these habitats provide (Kremen et al 2007) and also has high intrinsic value (Kleijn et al 2015;Prendergast 2020a). The floral associations of native bees observed in the present study are similar to those by , who found that Halictidae visited a taxonomically diverse range of flowers, and native Fabaceae and Ericaceae were important floral resources for a range of native bee species in Tasmania.…”

Section: Discussionmentioning

confidence: 99%

“…2015; Senapathi et al . 2015; Prendergast 2020a). Although we did not find negative associations between introduced bees and native bees, honey bees always dominated the assemblages and there was little variation in the relative proportions of honey bees and native bees, making determining potential competitive impacts difficult in this study.…”

Section: Discussionmentioning

confidence: 99%

“…2007) and also has high intrinsic value (Kleijn et al . 2015; Prendergast 2020a). The floral associations of native bees observed in the present study are similar to those by Hingston (1999), who found that Halictidae visited a taxonomically diverse range of flowers, and native Fabaceae and Ericaceae were important floral resources for a range of native bee species in Tasmania.…”

Section: Discussionmentioning

confidence: 99%

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Honey bees (Hymenoptera: Apidae) outnumber native bees in Tasmanian apple orchards: Perspectives for balancing crop production and native bee conservation

Prendergast

Leclercq²,

Vereecken³

2021

Austral Entomology

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Apples are a major crop globally, including in Tasmania (Australia)known as 'the Apple Isle' owing to the key role of apples in Tasmania's history and economy. Most apple cultivars are obligate entomophilous species, and fruit quantity, quality and economic value are enhanced under insect pollination. Whilst the introduced European honey bee (Apis mellifera) is often assumed to be the main pollinator of apple in most regions of the world, including Australia, there is an increasing interest in alternative pollinators. The pollinator community of Tasmanian apple crops, however, has never been assessed. In this study, we surveyed four apple orchards for 3 days each during peak bloom in the Huon Valley region to characterise bee assemblages visiting blooming apple trees and the native bee fauna associated with surrounding flowering vegetation. Our results show that honey bees were the predominant visitors to apple blossoms (90.7% of visits), followed by the introduced bumble bee Bombus terrestris (5.9% of visits), with only a minor contribution by native bees (3.3% of visits). Twenty-six species of native bees were collected in total, of which only 10 species (five Exoneura (Apidae), four Lasioglossum (Halictidae) and one Euryglossa (Colletidae) species) were collected from apple blossoms, with Exoneura being the most abundant visitors. Few native bees were captured on apple blossoms, however co-blooming surrounding native vegetation, as well exotic flowers, hosted a high diversity and abundance of native bees. Site conditions influenced community composition, including abundance and representation of introduced bees compared to native bees visiting apples. Additionally, warmer temperatures favoured native bees. Collectively, our results suggest that Tasmania's apple production in its current state is unlikely to rely exclusively on native pollinators. Native bees nevertheless warrant conservation in such an insular crop production system. This can be achievable through retaining native flowering plants and even exotic non-crop flowers in and around orchards. Promoting the diversity and abundance of native bees through habitat enhancement may have additional benefits, such as filling current and future pollination demands and gaps, a key strategy under scenarios of climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Honey bees (Hymenoptera: Apidae) outnumber native bees in Tasmanian apple orchards: Perspectives for balancing crop production and native bee conservation

Prendergast

Leclercq²,

Vereecken³

2021

Austral Entomology

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“…A fundamental tenet of Conservation Biology is species' existence value (Johnson and Hackett, 2016;Picolo, 2017;Prendergast, 2020). This value derives from evolutionary history, an emphasis in the present review.…”

Section: Importance Of Species Valuesmentioning

confidence: 97%

Sensitivity of Tropical Insectivorous Birds to the Anthropocene: A Review of Multiple Mechanisms and Conservation Implications

Sherry

2021

Front. Ecol. Evol.

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Epigraph: “The house is burning. We do not need a thermometer. We need a fire hose.” (P. 102, Janzen and Hallwachs, 2019). Insectivorous birds are declining widely, and for diverse reasons. Tropical insectivorous birds, more than 60% of all tropical birds, are particularly sensitive to human disturbances including habitat loss and fragmentation, intensive agriculture and pesticide use, and climate change; and the mechanisms are incompletely understood. This review addresses multiple, complementary and sometimes synergistic explanations for tropical insectivore declines, by categorizing explanations into ultimate vs. proximate, and direct versus indirect. Ultimate explanations are diverse human Anthropocene activities and the evolutionary history of these birds. This evolutionary history, synthesized by the Biotic Challenge Hypothesis (BCH), explains tropical insectivorous birds' vulnerabilities to many proximate threats as a function of both these birds' evolutionary feeding specialization and poor dispersal capacity. These traits were favored evolutionarily by both the diversity of insectivorous clades competing intensely for prey and co-evolution with arthropods over long evolutionary time periods. More proximate, ecological threats include bottom-up forces like declining insect populations, top-down forces like meso-predator increases, plus the Anthropocene activities underlying these factors, especially habitat loss and fragmentation, agricultural intensification, and climate change. All these conditions peak in the lowland, mainland Neotropics, where insectivorous bird declines have been repeatedly documented, but also occur in other tropical locales and continents. This multiplicity of interacting evolutionary and ecological factors informs conservation implications and recommendations for tropical insectivorous birds: (1) Why they are so sensitive to global change phenomena is no longer enigmatic, (2) distinguishing ultimate versus proximate stressors matters, (3) evolutionary life-histories predispose these birds to be particularly sensitive to the Anthropocene, (4) tropical regions and continents vary with respect to these birds' ecological sensitivity, (5) biodiversity concepts need stronger incorporation of species' evolutionary histories, (6) protecting these birds will require more, larger reserves for multiple reasons, and (7) these birds have greater value than generally recognized.

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Biodiversität und Ökosystemfunktionen – wichtige Zusammenhänge und Phänomene

Härdtle

2024

Biodiversität, Ökosystemfunktionen Und Naturschutz

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Beyond ecosystem services as justification for biodiversity conservation

Cited by 8 publications

References 36 publications

Honey bees (Hymenoptera: Apidae) outnumber native bees in Tasmanian apple orchards: Perspectives for balancing crop production and native bee conservation

Honey bees (Hymenoptera: Apidae) outnumber native bees in Tasmanian apple orchards: Perspectives for balancing crop production and native bee conservation

Sensitivity of Tropical Insectivorous Birds to the Anthropocene: A Review of Multiple Mechanisms and Conservation Implications

Biodiversität und Ökosystemfunktionen – wichtige Zusammenhänge und Phänomene

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