scholarly journals Contribution of Plantation Forest on Wild Bees (Hymenoptera: Apoidea) Pollinators Conservation in Mount Slamet, Central Java, Indonesia

2017 ◽  
Vol 9 (3) ◽  
pp. 437
Author(s):  
Imam Widhiono ◽  
Eming Sudiana ◽  
Edy Yani
Keyword(s):  
Species Diversity ◽  
Apis Cerana ◽  
Abundant Species ◽  
Line Transect ◽  
Forest Types ◽  
Plantation Forest ◽  
Wild Bees ◽  
Central Java ◽  
Wild Bee ◽  
Habitat Similarity

<p class="IsiAbstrakIndo">Wild bee pollinators (Hymenoptera : Apiade) diversity and abundance were studied in three types of plantation forest on Mt. Slamet (Central Java Province, Indonesia). The aims of the research was to know the diversity and abundance of wild bee pollinators and to determine the possibility of plantation forest contribution on wild bees conservation. Sampling has been done at three stands: a pine forest (PF, with <em>Pinus merkusii</em>), an Agathis forest (AF, with <em>Agathis damara</em>) and a community forest (CF, with <em>Albizia falctaria</em>). Each habitat was divided into 5 line transect (100 x 5 m) and sweep nets were used to collect the wild bee samples. Sampling was done eah month from April to August 2015. The diversity of wild bees was high (12 species in 9 genera; members of the Apidae (7 species were dominant). <span lang="EN-GB">The most abundant species across the forests were </span><em>Apis cerana</em><span lang="EN-GB"> (343 individuals; 25.5% of total), </span><em>Trigona laeviceps</em><span lang="EN-GB"> (195 individuals; 14.5%), and </span><em>Megachille relativa </em><span lang="EN-GB">(165 individuals; 12.3%)</span>. Measurements of species diversity (<em>H</em>’), species evenness (<em>E</em>), habitat similarity (<em>Ss</em>) and species richness indicated that the wild bee species diversity in the region was relatively high <span lang="EN-GB">(</span><em>H</em>’ = <span lang="EN-GB">1.275)</span> to <span lang="EN-GB">(</span><em>H</em>’<span lang="EN-GB"> = 1.730);</span><span lang="EN-GB">(</span>E= <span lang="EN-GB">0.870)</span> to<span lang="EN-GB"> (</span>E = <span lang="EN-GB">0.93)</span>. The result showed that t<span lang="EN-GB">he </span>diversity of wild bees<span lang="EN-GB"> in three different plantation forest habitats on Mt. Slamet were similar </span>and can be concluded that plantation<span lang="EN-GB"> forest types were important for pollinator conservation, and an appropriate future preservation strategy should include of the areas of all </span>plantation <span lang="EN-GB">forest types.</span></p>

scholarly journals Diversity of Wild Bees along Elevational Gradient in an Agricultural Area in Central Java, Indonesia

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Imam Widhiono ◽  
Eming Sudiana ◽  
Darsono Darsono
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Elevational Gradient ◽  
High Elevation ◽  
Agricultural Area ◽  
Wild Bees ◽  
Central Java ◽  
Wiener Diversity Index ◽  
Pollinator Community ◽  
Study Sites

Increases in mean temperature affect the diversity and abundance of wild bees in agricultural ecosystems. Pollinator community composition is expected to change along an elevational gradient due to differences in the daily ambient temperature. This study investigated the diversity and abundance of wild bees in an agricultural area along an elevational gradient in Central Java, Indonesia. Wild bees were collected using a sweep net in 40 green bean (Phaseolus vulgaris) cultivation sampling locations at seven different elevations (8, 108, 224, 424, 644, 893, and 1017 m above sea level). Species diversity was determined using the Shannon–Wiener diversity index. We identified 932 individuals from 8 species of wild bee belonging to 3 families. The family Apidae was predominant, with 6 species, while only 1 species was found from each of Megachilidae and Halictidae. Across the study sites, diversity increased with increasing elevation (H′= 1.4,D= 0.25, andE= 0.78 at low elevation toH′= 2.04,D= 0.13, andE= 0.96 at high elevation), and higher numbers of species were found at middle and high elevations. Species richness and abundance increased linearly with increasing elevation, and species diversity was highest at middle elevations.

scholarly journals Species diversity of wild bees (Hymenoptera: Apoidea) in parks of Kyiv

2019 ◽  
Vol 78 (2) ◽  
pp. 40-49 ◽  
Author(s):  
V. Radchenko ◽  
H. Honchar
Keyword(s):  
Species Diversity ◽  
Common Species ◽  
Ecological Group ◽  
Wild Bees ◽  
City Parks ◽  
Tree Cavities ◽  
Wild Bee ◽  
Nesting Sites ◽  
Bombus Lucorum ◽  
The City

Wild bee populations – important pollinators of many plants – are threatened with extinction due to reduced food resources, destruction of nesting sites and habitat fragmentation. The aim of this study is to determine the species diversity of wild bees in the parks of Kyiv. During the 2012-2017 spring-summer seasons a comprehensive study of the species composition and diversity of wild bees (Hymenoptera: Apoidea) was investigated. 115 wild bee species of 6 families and 34 genera have been found. Only 39 species among them were found in all parks and the common species are noted: Colletes cunicularius, Hylaeus communis, Andrena flavipes, Evylaeus calceatus, E. malachurus, E. politus, Anthophora plumipes, Bombus lucorum, B. terrestris, B. lapidarius, B. pascuorum. The proportions of species within each ecological group stay constant, except for the small decrease in oligolectic species. In all parks the ground-nesting bees are dominated. Bees that build nests in a different substrate (tree cavities, hollow plant stems, empties, holes, walls of buildings, and like) make up only 20 %. In general, on the territories of urban parks we have registered wild bees on the plants of more than 100 species from the families Asteraceaе, Fabaceaе, Lamiaceae, Rosaceaе. It should be noted, that ornamental flowering vegetation plays a significant role in wild bees nutrition in the city conditions. In some city parks we have found three species of wild bees that included in the Red Book of Ukraine: Bombus argillaceus, Xylocopa valga and Andrena chrysopus. The results of our study show that city parks are important for the conservation of wild bee populations, and the main conditions for this are the availability of flower sources and nesting sites.

scholarly journals Effects of Exotic Plantation Expansion and Management Intervention on Woody Plant Species Diversity, Regeneration and Soil Seed Bank in Tarmaber District, Ethiopia

2021 ◽  
Author(s):  
Melese Bekele Nigussie ◽  
Dessie Assefa Assefa ◽  
Yohannis Gebremariam Gebremariam
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Seed Bank ◽  
Woody Plant ◽  
Soil Seed Bank ◽  
Natural Forest ◽  
Forest Types ◽  
Plantation Forest ◽  
Woody Plant Species ◽  
Management Intervention

Abstract This study was carried out in Tarmaber district north shewa zone Ethiopia to determine the effect of plantation forest with management intervention on woody plant species diversity, regeneration and soil seed bank species composition in five different forest types, which are adjacent natural forest, managed Cupressus lusitanica, unmanaged C. lusitanica, managed Eucalyptus globules and not managed E. globules plantation forests. A total of 75 circular sample plots of 314 m2 were established along a transect lines. Soil seed bank analysis was done from soil samples collected in each of the plots (225 samples) to examine the similarity between the soil seed bank and aboveground flora. Different diversity index and ANOVA was used in SPSS software for analysis. The result showed that a total of 51 woody plant species was recorded in adjacent natural forest (41), managed C. lusitanica (27), not managed C. lusitanica (9), managed E. globules (22) and not managed E. globules (13) species. Regeneration of seedlings were 3538, 5567, 707, 1462 and 2524 mean stems ha− 1 for natural forest, managed C. lusitanica, not managed C. lusitanica, managed E. globules and not managed E. globules respectively. Unmanaged C. lusitanica plantations had significantly lower densities of mature tree stems ha− 1 as compared to managed C. lusitanica, managed E. globules and adjacent natural forest (F = 14.03, p < 0.05).Similarly in terms of sapling density ha− 1 unmanaged C. lusitanica was significantly lower from other forest types (F = 7.37, p < 0.05). However managed C. lusitanica had significantly higher seedling regeneration (stem density ha− 1) than other plantation and adjacent natural forests (F = 16.11, p < 0.05). Generally mean stem densities including tree, sapling and seedling of woody species among different forest types managed C. lusitanica was significantly higher among different forest types (F = 13.01, p < 0.05). From the soil seed bank a total of 22 plant species (20 native and 2 exotic) species were recovered. In different forest types the number of species recorded was in adjacent natural forest (19), managed C. lusitanica (11), unmanaged C. lusitanica (4), managed E. globules (7) and unmanaged E. globules (5). The similarity of the oil seed bank was more or less similar to the above ground flora with maximum Sorenson’s similarity values of 0.633. Generally with appropriate management intervention undergrowth vegetation and soil seed bank status in plantation forest had good species composition and diversity.

scholarly journals Species diversity and distribution of wild bees (Hymenoptera: Apoidea) in Binh Chanh District, Ho Chi Minh City

2021 ◽  
pp. 25-35
Keyword(s):  
Apis Mellifera ◽  
Species Diversity ◽  
Apis Cerana ◽  
Wild Plants ◽  
Ho Chi Minh City ◽  
Natural Ecosystems ◽  
Habitat Types ◽  
Wild Bees ◽  
Forest Habitat ◽  
Dry And Rainy Seasons

As the most significant pollinators of wild plants, bees play an important role in sustaining the natural ecosystems. In this study, we conducted surveys of bee fauna of three different habitat types during dry and rainy seasons of 2020 in Binh Chanh District, Ho Chi Minh City. A total of 169 individuals from 13 bee species belonging to six genera were collected. Of these, eight species are newly recorded from Ho Chi Minh City: Amegilla calceifera, A. himalajensis, A. zonata, Ceratina nigrolateralis, C. smaragdula, Xylocopa aestuan, X. latipes, Tetragonula fuscobalteata. The species composition of bees was more diverse in forest habitat than rural garden and canalbank habitats. The richness and abundance of bees were significantly higher in the dry season than the rainy season. Apis florea was abundant in forest and rural garden habitats while Ceratina smaragdula occurred plentifully in the canalbank habitat. Eight bee species (Apis cerana, A. dorsata, A. florea, Thyreus himalayensis, Xylocopa latipes, X. aestuans, Ceratina smaragdula, and C. nigrolateralis) widely distributed throughout all three habitats. By contrast, four bee species (Amegilla calceifera, A. himalajensis, Apis mellifera, and Tetragonula fuscobalteata) exclusively appeared in the forest habitat.

scholarly journals Variation of Small and Large Wild Bee Communities Under Honeybee Pressure in Highly Diverse Natural Habitats

2021 ◽  
Vol 9 ◽  
Author(s):  
Imre Demeter ◽  
Adalbert Balog ◽  
Miklós Sárospataki
Keyword(s):  
Species Diversity ◽  
Deleterious Effect ◽  
Species Turnover ◽  
Wild Bees ◽  
Natural Habitats ◽  
Wild Bee ◽  
Previous Contact ◽  
One Year ◽  
Bee Communities ◽  
The Impact

During the study, the honeybee effects on wild bees were tested and hypothesized that smaller distances from beehives will increase competitions between honeybees and wild bees, while greater distances will have a deleterious effect on competition. The impact on species richness and diversity was tested with distances from beehives, considering that this may differ when large and small wild bee species are considered separately. Altogether 158 species and 13,164 individuals were collected, from which 72% (9,542 individuals) were Apis mellifera. High variation in abundances was detected from one year to another, and the species turnover by sites was 67% in site A, 66% in site V, and 63% in site F. This last one was the site with the previous contact with honeybees. Considering distances from beehives, significant decreases in small bee species diversity were detected from one year to another at each distance except site F, 250 m from hives. The changes in species diversity and community structure of small bee species are detected from one year to another.

Influence of Nesting Characteristics on Health of Wild Bee Communities

2020 ◽  
Vol 65 (1) ◽  
pp. 39-56 ◽  
Author(s):  
Alexandra Harmon-Threatt
Keyword(s):  
Climate Change ◽  
Nest Site ◽  
Site Conditions ◽  
Wild Bees ◽  
Nesting Biology ◽  
Habitat Disturbances ◽  
Wild Bee ◽  
Growth Development ◽  
Bee Communities ◽  
Nest Initiation

Nest site availability and quality are important for maintaining robust populations and communities of wild bees. However, for most species, nesting traits and nest site conditions are poorly known, limiting both our understanding of basic ecology for bee species and conservation efforts. Additionally, many of the threats commonly associated with reducing bee populations have effects that can extend into nests but are largely unstudied. In general, threats such as habitat disturbances and climate change likely affect nest site availability and nest site conditions, which in turn affect nest initiation, growth, development, and overwintering success of bees. To facilitate a better understanding of how these and other threats may affect nesting bees, in this review, I quantify key nesting traits and environmental conditions and then consider how these traits may intersect with observed and anticipated changes in nesting conditions experienced by wild bees. These data suggest that the effects of common threats to bees through nesting may strongly influence their survival and persistence but are vastly understudied. Increasing research into nesting biology and incorporating nesting information into conservation efforts may help improve conservation of this declining but critical group.

scholarly journals Identity of mass-flowering crops moderates functional trait composition of pollinator communities

2021 ◽  
Author(s):  
Nicole Beyer ◽  
Felix Kirsch ◽  
Doreen Gabriel ◽  
Catrin Westphal
Keyword(s):  
Faba Bean ◽  
Management Practices ◽  
Functional Trait ◽  
Flower Morphology ◽  
Landscape Diversity ◽  
Floral Resources ◽  
Wild Bees ◽  
Natural Habitats ◽  
Mass Flowering ◽  
Wild Bee

Abstract Context Pollinator declines and functional homogenization of farmland insect communities have been reported. Mass-flowering crops (MFC) can support pollinators by providing floral resources. Knowledge about how MFC with dissimilar flower morphology affect functional groups and functional trait compositions of wild bee communities is scarce. Objective We investigated how two morphologically different MFC, land cover and local flower cover of semi-natural habitats (SNH) and landscape diversity affect wild bees and their functional traits (body size, tongue length, sociality, foraging preferences). Methods We conducted landscape-level wild bee surveys in SNH of 30 paired study landscapes covering an oilseed rape (OSR) (Brassica napus L.) gradient. In 15 study landscapes faba beans (Vicia faba L.) were grown, paired with respective control landscapes without grain legumes. Results Faba bean cultivation promoted bumblebees (Bombus spp. Latreille), whereas non-Bombus densities were only driven by the local flower cover of SNH. High landscape diversity enhanced wild bee species richness. Faba bean cultivation enhanced the proportions of social wild bees, bees foraging on Fabaceae and slightly of long-tongued bumblebees. Solitary bee proportions increased with high covers of OSR. High local SNH flower covers mitigated changes of mean bee sizes caused by faba bean cultivation. Conclusions Our results show that MFC support specific functional bee groups adapted to their flower morphology and can alter pollinators` functional trait composition. We conclude that management practices need to target the cultivation of functionally diverse crops, combined with high local flower covers of diverse SNH to create heterogeneous landscapes, which sustain diverse pollinator communities.

scholarly journals High honeybee abundances reduce wild bee abundances on flowers in the city of Munich

Oecologia ◽  
2021 ◽  
Author(s):  
Susanne S. Renner ◽  
Marie Sophie Graf ◽  
Zoe Hentschel ◽  
Helen Krause ◽  
Andreas Fleischmann
Keyword(s):  
Apis Mellifera ◽  
Adjacent Area ◽  
Exploitative Competition ◽  
Wild Bees ◽  
European Cities ◽  
Urban Garden ◽  
Wild Bee ◽  
June July ◽  
The City ◽  
Clear Support

AbstractThe increase in managed honeybees (Apis mellifera) in many European cities has unknown effects on the densities of wild bees through competition. To investigate this, we monitored honeybees and non-honeybees from 01 April to 31 July 2019 and 2020 at 29 species of plants representing diverse taxonomic and floral-functional types in a large urban garden in the city of Munich in which the same plant species were cultivated in both years. No bee hives were present in the focal garden, and all bee hives in the adjacent area were closely monitored by interviewing the relevant bee keepers in both 2019 and 2020. Honeybee numbers were similar in April of both years, but increased from May to July 2020 compared to 2019. The higher densities correlated with a significant increase in shifts from wild bee to honeybee visits in May/June/July, while visitor spectra in April 2019 and 2020 remained the same. Most of the species that experienced a shift to honeybee visits in 2020 were visited mostly or exclusively for their nectar. There were no shifts towards increased wild bee visits in any species. These results from a flower-rich garden have implications for the discussion of whether urban bee keeping might negatively impact wild bees. We found clear support that high honeybee densities result in exploitative competition at numerous types of flowers.

Carabidae (Coleoptera) in Nova Scotia, Canada wild blueberry fields: prospects for biological control

2012 ◽  
Vol 144 (6) ◽  
pp. 779-791 ◽  
Author(s):  
G.C. Cutler ◽  
J.M. Renkema ◽  
C.G. Majka ◽  
J.M. Sproule
Keyword(s):  
Biological Control ◽  
Nova Scotia ◽  
Species Diversity ◽  
Insect Pests ◽  
Abundant Species ◽  
Conservation Biological Control ◽  
Carabid Beetles ◽  
Eastern Canada ◽  
Wild Blueberries ◽  
Wild Blueberry

AbstractThe Carabidae (Coleoptera) are a diverse family of beetles with almost 300 species identified in Nova Scotia, Canada. Carabid beetle communities have been studied in several agricultural systems, but not wild blueberries, an important crop in eastern Canada. In the interest of potentially developing conservation biological control programs in wild blueberry, we collected Carabidae in crop (fruit-bearing) and sprout (vegetative) blueberry fields in Nova Scotia in order to assess species diversity and abundance over space and time. Over 3200 specimens were collected, representing 51 species. A large portion of collected specimens (39%) were nonnative, and the most abundant species were generally predacious and synanthropic. Species diversity tended to be higher near forest edges than further into fields, but not for all abundant species. Several of the most prominent predators showed significant differences in preference of crop versus sprout fields, distribution throughout fields, and seasonable abundance. These findings have implications for conservation biological control efforts with carabid beetles against several insect pests in wild blueberry.

Comparison of the pollination efficiency of Apis cerana with wild bees in oil-seed camellia fields

2021 ◽  
Author(s):  
Hong-Ying Li ◽  
An-Cai Luo ◽  
You-Jin Hao ◽  
Fei-Yue Dou ◽  
Ruo-Mei Kou ◽  
...  
Keyword(s):  
Apis Cerana ◽  
Pollination Efficiency ◽  
Wild Bees ◽  
Oil Seed
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