Critical role of native forest and savannah habitats in retaining neotropical pollinator diversity in highly mechanized agricultural landscapes

Ferreira, José Victor Alves; Storck‐Tonon, Danielle; Ramos, Alexander Webber Perlandim; Costa, Hugo C. M.; Nogueira, David Silva; Mahlmann, Thiago; Oliveira, Márcio Luiz de; Pereira, Mônica Josene Barbosa; Silva, Dionei José da; Peres, Carlos A.

doi:10.1016/j.agee.2022.108084

Cited by 7 publications

(8 citation statements)

References 63 publications

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“…For example, in the extensively forested landscape studied by Winfree et al (2007a), the movement of bees from agricultural and developed areas into forests may have boosted bee abundance and richness relative to sites more dominated by forests. Consistent with this, Ferreira et al (2022) captured more bee species at the edge of soybean [Glycine max (L.) Merr.] fields and Amazon rainforests than in either of the adjacent habitats in Brazil.…”

Section: Local Effects Of Forest Cover Are Scale Taxon and Context De...supporting

confidence: 54%

“…Comparisons between forests and other land cover types often capture the importance of forests to local and regional pollinator diversity (Gutiérrez‐Chacón, Dormann & Klein, 2018; Ganuza et al ., 2022; Kuussaari et al ., 2007; Tylianakis, Klein & Tscharntke, 2005; Alison et al ., 2022; Ferreira et al ., 2022) but this is not always the case. Indeed, many studies comparing the total richness or abundance of species from different land cover types have reported significantly lower numbers in forests compared to other land uses, leading some authors to conclude that forests are less important to pollinator diversity than flower‐rich open habitats (Wagner et al ., 2019; Mandelik et al ., 2012; Hoehn et al ., 2010; Hagen & Kraemer, 2010).…”

Section: Forests Support a Distinct Pollinator Faunamentioning

confidence: 99%

“…Moreover, differences in the number of species found in forests and other habitats are not as informative as differences in species composition. Indeed, most studies find that forests support compositionally distinct communities when compared to open habitats (Mallinger, Gibbs & Gratton, 2016; Escobedo‐Kenefic et al ., 2020; Winfree, Griswold & Kremen, 2007 a ; Allen et al ., 2019; Alison et al ., 2022; Ferreira et al ., 2022) and pollinators in forests exhibit greater habitat specificity than those found in other land cover types (Tylianakis et al ., 2005; Collado et al ., 2019).…”

Section: Forests Support a Distinct Pollinator Faunamentioning

confidence: 99%

“…Because forests support distinct pollinator assemblages, including many specialist species that depend on them for floral resources, nesting/breeding substrates, or for shelter (see Section V), they are critically important to sustaining regional and global pollinator diversity (Collado et al ., 2019; Salmah et al ., 1990; Brown & Albrecht, 2001; Ferreira et al ., 2022). Recent work from Germany, for example, confirms that landscapes with a higher proportion of forests have more heterogeneous pollinator communities (i.e.…”

Section: Diverse Landscapes Can Enhance Pollinator Diversitymentioning

confidence: 99%

“…Because peak flowering often occurs at different times in forests in comparison to crops and other land uses, for instance, forests can help sustain pollinator populations during periods of flower scarcity elsewhere (Urban‐Mead et al ., 2023). Moreover, many forests provide floral resources, as well as non‐floral sugar sources such as honeydew (see Section IV), throughout the year, thus providing greater continuity in resource availability than is typical of many crops and other anthropogenic habitats (Lentini et al ., 2012; Ferreira et al ., 2022). Conversely, floral resources provided by non‐forested habitats can sustain pollinators during periods of low flower availability in forests.…”

Section: Diverse Landscapes Can Enhance Pollinator Diversitymentioning

confidence: 99%

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Forests are critically important to global pollinator diversity and enhance pollination in adjacent crops

et al. 2023

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Although the importance of natural habitats to pollinator diversity is widely recognized, the value of forests to pollinating insects has been largely overlooked in many parts of the world. In this review, we (i) establish the importance of forests to global pollinator diversity, (ii) explore the relationship between forest cover and pollinator diversity in mixed‐use landscapes, and (iii) highlight the contributions of forest‐associated pollinators to pollination in adjacent crops. The literature shows unambiguously that native forests support a large number of forest‐dependent species and are thus critically important to global pollinator diversity. Many pollinator taxa require or benefit greatly from resources that are restricted to forests, such as floral resources provided by forest plants (including wind‐pollinated trees), dead wood for nesting, tree resins, and various non‐floral sugar sources (e.g. honeydew). Although landscape‐scale studies generally support the conclusion that forests enhance pollinator diversity, findings are often complicated by spatial scale, focal taxa, landscape context, temporal context, forest type, disturbance history, and external stressors. While some forest loss can be beneficial to pollinators by enhancing habitat complementarity, too much can result in the near‐elimination of forest‐associated species. There is strong evidence from studies of multiple crop types that forest cover can substantially increase yields in adjacent habitats, at least within the foraging ranges of the pollinators involved. The literature also suggests that forests may have enhanced importance to pollinators in the future given their role in mitigating the negative effects of pesticides and climate change. Many questions remain about the amount and configuration of forest cover required to promote the diversity of forest‐associated pollinators and their services within forests and in neighbouring habitats. However, it is clear from the current body of knowledge that any effort to preserve native woody habitats, including the protection of individual trees, will benefit pollinating insects and help maintain the critical services they provide.

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Section: Local Effects Of Forest Cover Are Scale Taxon and Context De...supporting

confidence: 54%