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  1. Article: Do bipartite binary antagonistic and mutualistic networks have different responses to the taxonomic resolution of nodes?

    Rodrigues, Bárbara Nobrega / Boscolo, Danilo

    Ecological entomology. 2020 June, v. 45, no. 3

    2020  

    Abstract: 1. Bipartite network analyses are increasingly being used to better understand mutualistic and antagonistic plant–insect interactions at the community level. As a result of taxonomic limitations, it is usually very difficult to identify all nodes of a ... ...

    Abstract 1. Bipartite network analyses are increasingly being used to better understand mutualistic and antagonistic plant–insect interactions at the community level. As a result of taxonomic limitations, it is usually very difficult to identify all nodes of a network down to the species level and many studies leave some specimens identified as lower resolution taxa. Accordingly, we do not know how much a lower resolution taxonomic representation changes the network structure compared with a representation with all nodes at species level. 2. The present study aimed to test whether insect–plant networks built using different combinations of taxonomic levels can still preserve the same basic structure of networks built only with species. 3. In total, 73 bipartite published interaction networks (mutualistic and antagonistic) were selected, which were turned into binary networks and reconstructed using the nodes classified as species, genus, family or order (representing different levels of classification difficulty). The network structures were compared using their binary representations mainly using connectance, NODF (Nestedness metric based on Overlap and Decreasing Fill) and modularity. 4. The mutualistic network structure was strongly linearly related to the original network structures if all nodes were grouped up to genus level. In antagonistic networks, the structure was related to the original network only if nodes were only grouped at the species level. 5. The findings of the present study are especially helpful for comparative network studies, such as those assessing the effects of environmental gradients. For mutualistic networks, Citizen Science programmes can provide useful ecological indicators, even with its taxonomic limitations.
    Keywords citizen science ; entomology ; nestedness
    Language English
    Dates of publication 2020-06
    Size p. 709-717.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    Note NAL-AP-2-clean ; JOURNAL ARTICLE
    ZDB-ID 196048-9
    ISSN 0307-6946
    ISSN 0307-6946
    DOI 10.1111/een.12844
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Promoting Bird Functional Diversity on Landscapes with a Matrix of Planted Eucalyptus spp. in the Atlantic Forest.

    Melo, Renata Siqueira / Alexandrino, Eduardo Roberto / de Paula, Felipe Rossetti / Boscolo, Danilo / de Barros Ferraz, Silvio Frosini

    Environmental management

    2023  Volume 73, Issue 2, Page(s) 395–407

    Abstract: Promoting the diversity of biological communities in areas of agricultural production is a very current debate since protected areas may not be sufficient to ensure biodiversity conservation. Among the biological communities affected by the production ... ...

    Abstract Promoting the diversity of biological communities in areas of agricultural production is a very current debate since protected areas may not be sufficient to ensure biodiversity conservation. Among the biological communities affected by the production areas are birds, which show rapid responses to changes in the landscape. Here we seek to understand how landscape planning, concerning its composition and configuration, in areas with a matrix of planted Eucalyptus spp. forests influences the functional diversity of bird assemblages in the Atlantic Forest. Our results show that the spatial distribution design of planted forests in terms of age, land cover and clone types have effects on bird diversity with regard to functional divergence, functional evenness and species richness. These results reinforce the importance of good management for the maintenance of bird diversity. We found that bird functional diversity in planted forest matrices increased with the proximity index, proportion of native vegetation and age importance value, and is negatively influenced by edge density and proportion of forest plantation. For bird conservation, it is thus better to associate Eucalyptus spp. with other cover types in the landscape. These results corroborate that, to increase bird functional diversity, it is possible to associate conservation and production in the same landscape. Mosaic landscapes have great potential to contribute to the conservation of bird biodiversity outside protected areas. However, decisions regarding the management of planted forests and planning of improved areas intended for conservation seem to be decisive to ensure the maintenance of bird biodiversity.
    MeSH term(s) Animals ; Eucalyptus ; Forests ; Biodiversity ; Biota ; Birds/physiology ; Ecosystem
    Language English
    Publishing date 2023-10-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1478932-2
    ISSN 1432-1009 ; 0364-152X
    ISSN (online) 1432-1009
    ISSN 0364-152X
    DOI 10.1007/s00267-023-01888-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Forest cover and non-forest landscape heterogeneity modulate pollination of tropical understory plants

    Soares, Raimunda G. S. / Ferreira, Patrícia A. / Boscolo, Danilo / Rocha, Ana C. / Lopes, Luciano E.

    Landscape ecology. 2022 Feb., v. 37, no. 2

    2022  

    Abstract: CONTEXT: In human-altered landscapes, native vegetation cover is essential for pollination maintenance. Heterogeneous land-uses may provide complementary resources for some pollinator species, contributing to the connectivity of landscapes and the ... ...

    Abstract CONTEXT: In human-altered landscapes, native vegetation cover is essential for pollination maintenance. Heterogeneous land-uses may provide complementary resources for some pollinator species, contributing to the connectivity of landscapes and the maintenance of pollination. OBJECTIVES: To investigate the effect of forest cover and non-forest landscape heterogeneity on pollination of native understory forest plant assemblages. METHODS: We quantified pollen deposited on understory native flowers in gradients of forest cover and heterogeneity of land-uses (Shannon–Wiener diversity index) in a central forest patch in 14 landscapes. RESULTS: Forest cover and the non-forest heterogeneity of land-uses interacted, favoring pollination in landscapes with high amount of forest and low heterogeneity, and in landscapes with low amount of forest and high heterogeneity. Forest promotes high-quality habitats and higher connectivity for pollinators, increasing pollination. Forest cover and non-forest landscape heterogeneity seemed to increase pollinator efficiency, since pollination increased regardless of pollinator diversity. In landscapes with a low amount of forest, high land-use heterogeneity may partially compensate for forest loss due to land-uses that offered complementary resources for the maintenance of pollinators and pollination. CONCLUSIONS: We have seen that pollination is favored by forest cover and the interaction between native forest and other land-uses that can add complementary resources and landscape connectivity to pollinators. For management policies, priority should be on the maintenance and increase of native forest cover in the landscapes, followed by promoting heterogeneity of other favorable land-uses to pollinators.
    Keywords forests ; habitat connectivity ; indigenous species ; land use ; landscape ecology ; landscapes ; pollen ; pollination ; pollinators ; understory ; vegetation cover
    Language English
    Dates of publication 2022-02
    Size p. 393-409.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 1027798-5
    ISSN 1572-9761 ; 0921-2973
    ISSN (online) 1572-9761
    ISSN 0921-2973
    DOI 10.1007/s10980-021-01356-x
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Use of Sentinel 2 imagery to estimate vegetation height in fragments of Atlantic Forest

    Perez, Gabriel Guariglia / Bourscheidt, Vandoir / Lopes, Luciano Elsinor / Takata, Juliana Toshie / Ferreira, Patrícia Alves / Boscolo, Danilo

    Ecological informatics. 2022 May 14,

    2022  

    Abstract: Information on vegetation height can be used in a variety of applications, but the high cost to obtain it in large areas using field sampling and the latest remote sensing technologies is still a barrier for low-income countries and organizations. In an ... ...

    Abstract Information on vegetation height can be used in a variety of applications, but the high cost to obtain it in large areas using field sampling and the latest remote sensing technologies is still a barrier for low-income countries and organizations. In an attempt to overcome these limitations, we explored the possibility to estimate vegetation height in fragments of Atlantic Forest (São Paulo - Brazil) based on Sentinel 2 imagery, using LiDAR (Light Detection And Ranging) and field data as reference. The initial results showed that only wet season images appear to be related to the vegetation height, especially band 5 (red-edge) and related vegetation indices (VIs). Predictions made with Sentinel 2 and LiDAR data showed that vegetation height can be estimated with a root mean square error (RMSE) close to 3 m, with simple linear models outperforming random forest algorithms. It's also shown in a variety of validation tests, that although better results are obtained if the models are applied to the same images they were trained in, they are still able to reasonably predict vegetation height when applied to other images and locations if the right predictive variables are used. The results agree with recent studies made in other biomes and show that Sentinel 2 imagery can be used to estimate vegetation height in the Atlantic Forest as well. We conclude that vegetation height estimates with linear models can be used as a simple low cost alternative for future applications in this environment.
    Keywords forests ; lidar ; wet season ; Brazil
    Language English
    Dates of publication 2022-0514
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ZDB-ID 2212016-6
    ISSN 1878-0512 ; 1574-9541
    ISSN (online) 1878-0512
    ISSN 1574-9541
    DOI 10.1016/j.ecoinf.2022.101680
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Heterogeneous agroecosystems support high diversity and abundance of trap‐nesting bees and wasps among tropical crops

    Coutinho, Jeferson G. E / Angel‐Coca, Catalina / Boscolo, Danilo / Viana, Blandina F

    Biotropica. 2020 Sept., v. 52, no. 5

    2020  

    Abstract: Land‐use intensification for agricultural purposes modifies the structure of natural environments in various ways and at different spatial scales. These modifications can affect ecological processes and the community structure of multi‐environment users ... ...

    Abstract Land‐use intensification for agricultural purposes modifies the structure of natural environments in various ways and at different spatial scales. These modifications can affect ecological processes and the community structure of multi‐environment users such as solitary bees and wasps. Understanding the role of distinct habitat descriptors in promoting such changes is one of the major challenges of empirical studies. In this study, we use a multi‐scale approach to evaluate how landscape compositional and configurational heterogeneity, vegetation structural complexity, and the proportion of agricultural landscape composition affect communities of bees and wasps that nest in pre‐existing cavities in remnants of native vegetation bordering agroecosystems. We selected 25 sampling points along a gradient of amount of surrounding agriculture and landscape diversity within natural physiognomies located in Chapada Diamantina, Bahia, Brazil. Through model selection using Akaike's information criterion, we verified the complementary roles of landscape heterogeneity and local vegetation in structuring these hymenopteran communities. Abundance in the groups showed different tendencies depending on the descriptors employed, pointing to the importance of evaluating within‐group specificity. Furthermore, bees and wasps presented differential responses to landscape composition, but they did not differ in relation to configurational complexity. In more heterogeneous landscapes or sites with more complex local vegetation, the proportion of agriculture had a positive influence on the response evaluated. Efficient management of agricultural landscapes therefore requires increased landscape heterogeneity and conservation or restoration of native vegetation remnants at the local scale.
    Keywords Hymenoptera ; administrative management ; agricultural land ; agriculture ; agroecosystems ; empirical research ; habitats ; indigenous species ; information ; land use ; landscapes ; models ; nests ; sampling ; solitary bees ; tropical and subtropical crops ; vegetation ; wasps ; Brazil
    Language English
    Dates of publication 2020-09
    Size p. 991-1004.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note NAL-light ; REVIEW
    ZDB-ID 2052061-X
    ISSN 1744-7429 ; 0006-3606
    ISSN (online) 1744-7429
    ISSN 0006-3606
    DOI 10.1111/btp.12809
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Effect of landscape structure on waterbirds community in a conservation gradient in southwestern wetlands coast of Cuba

    Aguilar, Susana / Mugica, Lourdes / Acosta, Martín / Aguilar, Karen / Boscolo, Danilo / Castro, Rodolfo / Hernández, Zaimiuri / Manica, Lilian Tonelli

    Wetlands ecology and management. 2021 Dec., v. 29, no. 6

    2021  

    Abstract: Landscape structure can affect waterbird distributions across wetlands. In the Caribbean region, little focus has been given to the studies testing how waterbird communities are affected by the landscape structure of coastal wetlands. We investigated the ...

    Abstract Landscape structure can affect waterbird distributions across wetlands. In the Caribbean region, little focus has been given to the studies testing how waterbird communities are affected by the landscape structure of coastal wetlands. We investigated the effects of landscape configuration on waterbird communities in southwestern Cuba and evaluated the contribution of the configuration of lagoons, mangrove and anthropogenic land use to waterbird diversity. Additionally, we identified the scale at which descriptors of waterbird community are most sensitive to landscape variables. We conducted waterbird surveys at 14 sampling points in coastal wetlands of southwestern Cuba during fall migration of 2016. Landscape structure was described with five landscape variables at three spatial scales. We found that at 6 km scale, mangrove mean patch area had a negative influence on waterbird abundance, while the percentage of landscape covered by lagoons had a positive effect at 2 km. However, a higher percentage of both mangroves and lagoons had an influence in waterbird composition variation at 2 km. The percentage of anthropogenic land use did not affect any response variable at the evaluated scales. Detecting the scale at which two important landscape resources (lagoons and mangroves) influence waterbird populations is an important tool for the successful management of these habitats. Study of these features could contribute to the adequate planning of protected areas along the coast of Cuba and the Caribbean.
    Keywords coasts ; land use ; landscapes ; water birds ; Caribbean ; Cuba
    Language English
    Dates of publication 2021-12
    Size p. 929-944.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 20900-4
    ISSN 1572-9834 ; 0923-4861
    ISSN (online) 1572-9834
    ISSN 0923-4861
    DOI 10.1007/s11273-021-09821-9
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Pollen analysis of cavity‐nesting bees (Hymenoptera: Anthophila) and their food webs in a city

    da Rocha‐Filho, Léo C. / Montagnana, Paula C. / Araújo, Thayane N. / Moure‐Oliveira, Diego / Boscolo, Danilo / Garófalo, Carlos A.

    Ecological entomology. 2022 Apr., v. 47, no. 2

    2022  

    Abstract: 1. Urban areas can host speciose bee communities due partially to the species‐rich combination of both native and alien plant species found in these landscapes. However, in intensively‐constructed zones, it could be expected to record a low plant ... ...

    Abstract 1. Urban areas can host speciose bee communities due partially to the species‐rich combination of both native and alien plant species found in these landscapes. However, in intensively‐constructed zones, it could be expected to record a low plant diversity used by bees because of the high proportion of paved surfaces in these areas. 2. We investigated the influence of urbanisation on the cavity‐nesting bee‐plant community and interaction network structures in a medium‐sized city. The floral diversity used by nesting females in cell provisioning was retrieved from the pollen content obtained from trap‐nests collected in 11 sites located in an urban landscape gradient. 3. Eighty pollen types belonging to 20 families were identified in the 155 pollen samples analysed. At least seven alien plant species were identified in samples from all sampling points. The landscape analysis revealed a positive influence of the proportion of green areas on the pollen type richness, although the null model was also selected as best model. Likewise, all network metrics but connectance were not influenced by any of the landscape variables. 4. Our findings demonstrated that notwithstanding the sampling sites the floral diversity used by bees and the alien pollen type richness were similar. Likewise, the bee‐plant networks were modular, asymmetric, and highly specialised. The positive adaptation that cavity‐nesting bee species present in urban environments and the presence of bee species that can explore a diverse flora may indicate that the local variation in the landscape had little influence on their interactions with plants.
    Keywords Anthophila ; Hymenoptera ; bees ; entomology ; flora ; introduced plants ; landscapes ; models ; pollen ; pollen analysis ; species diversity ; urbanization
    Language English
    Dates of publication 2022-04
    Size p. 146-157.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 196048-9
    ISSN 0307-6946
    ISSN 0307-6946
    DOI 10.1111/een.13097
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Green patches among a grey patchwork: the importance of preserving natural habitats to harbour cavity-nesting bees and wasps (Hymenoptera) and their natural enemies in urban areas

    da Rocha-Filho, Léo Correia / Montagnana, Paula Carolina / Boscolo, Danilo / Garófalo, Carlos Alberto

    Biodiversity and conservation. 2020 July, v. 29, no. 8

    2020  

    Abstract: Urbanisation is fast-growing worldwide characterised by the conversion of natural vegetation ecosystems into densely paved areas with a high concentration of human constructions and few remnants of natural habitats. This phenomenon may threaten wildlife, ...

    Abstract Urbanisation is fast-growing worldwide characterised by the conversion of natural vegetation ecosystems into densely paved areas with a high concentration of human constructions and few remnants of natural habitats. This phenomenon may threaten wildlife, especially high trophic level organisms such as predators and parasitoids, which are known to be more sensitive to habitat fragmentation. We investigated the influence of urbanisation on the community of trap-nesting bees and wasps as well as on their parasites in an urban area. Trap-nests were installed in 11 areas within the perimeter of the city of Ribeirão Preto, Brazil. Fourteen land cover categories were distinguished and their percentages calculated for each area from satellite images. The community sampled consisted of 20 wasp and 12 bee species, as well as 25 natural enemy species that attacked 9.75% of the nests. The highest diversity of bees and wasps was observed in areas with higher percentages of natural vegetation, i.e., forests, wastelands, and neighbourhoods with extensive green areas. Rates of parasitism, measured by the abundance and richness of parasites, was positively correlated with the proportion of green areas in the landscape. Even though predatory wasps constitute a higher trophic level than bees they were not more negatively impacted by urbanisation. Our results demonstrate that natural habitats and extensive green areas can host diverse communities of cavity-nesting bees, wasps, and their parasites within a city. The conservation of green areas in urbanised landscapes should be considered as essential to maintain the populations of these important insects.
    Keywords Hymenoptera ; bees ; biodiversity ; habitat fragmentation ; humans ; land cover ; landscapes ; natural enemies ; parasitism ; parasitoids ; satellites ; trophic levels ; urban areas ; urbanization ; wasps ; wildlife ; Brazil
    Language English
    Dates of publication 2020-07
    Size p. 2487-2514.
    Publishing place Springer Netherlands
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2000787-5
    ISSN 1572-9710 ; 0960-3115
    ISSN (online) 1572-9710
    ISSN 0960-3115
    DOI 10.1007/s10531-020-01985-9
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Species turnover and low stability in a community of euglossine bees (Hymenoptera: Apidae) sampled within 28 years in an urban forest fragment

    da Rocha-Filho, Léo Correia / Montagnana, Paula Carolina / Boscolo, Danilo / Garófalo, Carlos Alberto

    Apidologie. 2020 Dec., v. 51, no. 6

    2020  

    Abstract: Orchid bees are important long-distance pollinators in Neotropical rainforests. Despite their great flight capacity, some species avoid leaving the forest and might be then more vulnerable to the negative effects of habitat fragmentation. Here, we ... ...

    Abstract Orchid bees are important long-distance pollinators in Neotropical rainforests. Despite their great flight capacity, some species avoid leaving the forest and might be then more vulnerable to the negative effects of habitat fragmentation. Here, we sampled the euglossine fauna from a forest fragment in an urban zone and compared the data to two surveys conducted in the same area 28 and 20 years before. Twelve species were sampled, and the highest values of both abundance and richness were recorded in the present sampling. Species turnover was observed with the resilient species Euglossa cordata and Eulaema nigrita presenting a high increase in number over the years whereas the prevalent species in the former samplings, Euglossa pleosticta, show the highest stable populations. Conversely, the abundance of Euglossa annectans decreased until zero in the last sampling. The studied orchid bee populations had a lower stability value when compared with other euglossine long-term surveys. Our results indicate that even a small forest fragment within an urbanised landscape and subjected to different levels of anthropogenic impacts harbours a diverse euglossine fauna. It is suggested that not only the preservation and maintenance of forest fragments in urban areas but also its restoration after environmental impacts are important procedures to support species-rich wildlife.
    Keywords Euglossa ; Eulaema ; Neotropics ; Orchidaceae ; fauna ; flight ; habitat fragmentation ; landscapes ; urban forests ; urbanization ; wildlife
    Language English
    Dates of publication 2020-12
    Size p. 921-934.
    Publishing place Springer Paris
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 280429-3
    ISSN 1297-9678 ; 0044-8435 ; 0365-5407
    ISSN (online) 1297-9678
    ISSN 0044-8435 ; 0365-5407
    DOI 10.1007/s13592-020-00772-3
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Niche opportunity created by land cover change is driving the European hare invasion in the Neotropics

    Pasqualotto, Nielson / Boscolo, Danilo / Versiani, Natalia F / Paolino, Roberta M / Rodrigues, Thiago F / Krepschi, Victor G / Chiarello, Adriano G

    Biological invasions. 2021 Jan., v. 23, no. 1

    2021  

    Abstract: The European hare (Lepus europaeus) was introduced in the late 19th century in Argentina and has since rapidly expanded northwards, currently occupying the Brazilian south and southeast. Although European hare is known to be a farmland specialist in its ... ...

    Abstract The European hare (Lepus europaeus) was introduced in the late 19th century in Argentina and has since rapidly expanded northwards, currently occupying the Brazilian south and southeast. Although European hare is known to be a farmland specialist in its native Europe, what habitat types or landscape features are facilitating its expansion in the Neotropics are not yet clear. Here we assessed support to the disturbance and biotic resistance hypotheses as general drivers of this invasion. We sampled with camera-traps and track surveys 205 sites in three landscapes in southeastern Brazil. We used occupancy models that corrected for both false positive and false negative errors. The disturbance hypothesis was the top-ranked (w = 0.66) with the amount of field, sugarcane, and managed forests all affecting strongly and positively hare occupancy. Support to the biotic resistance hypothesis was lower (ΔAICc = 2.14; w = 0.23) and partial, since only native forests showed a negative effect on hare occupancy. Our findings indicate that in the expansion front occupancy of this invader is mainly dictated by niche opportunities created by native habitat transformation into agricultural lands. The biotic resistance imposed by remaining native habitats seems to play a secondary role and only due to native forests. We conclude that hare geographical expansion should increase given the prominent role of Brazil as a commodity producer and exporter. Nevertheless, fomenting forested protected areas and improving adherence of rural owners to the Brazilian Forest Act, which protects forests in private rural properties, might help lessen this spread.
    Keywords Lepus europaeus ; Neotropics ; agricultural land ; cameras ; forests ; habitats ; hares ; land cover ; landscapes ; sugarcane ; Argentina ; Brazil ; Europe
    Language English
    Dates of publication 2021-01
    Size p. 7-24.
    Publishing place Springer International Publishing
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 1438729-3
    ISSN 1573-1464 ; 1387-3547
    ISSN (online) 1573-1464
    ISSN 1387-3547
    DOI 10.1007/s10530-020-02353-y
    Database NAL-Catalogue (AGRICOLA)

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