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Life ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 970
Author(s):  
Alessandra Durazzo ◽  
Massimo Lucarini ◽  
Manuela Plutino ◽  
Luigi Lucini ◽  
Rita Aromolo ◽  
...  

Biodiversity strengthens the productivity of any ecosystem (agricultural land, forest, lake, etc.). The loss of biodiversity contributes to food and energy insecurity; increases vulnerability to natural disasters, such as floods or tropical storms; and decreases the quality of both life and health. Wild and managed bees play a key role in maintaining the biodiversity and in the recovery and restoration of degraded habitats. The novelty character of this perspective is to give an updated representation of bee products’ biodiversity, sustainability, and health relationship. The role of bees as bioindicators, their importance in the conservation of biodiversity, their ecosystem services, and the variety of the bee products are described herein. An overview of the main components of bee products, their biological potentials, and health is highlighted and detailed as follows: (i) nutritional value of bee products, (ii) bioactive profile of bee products and the related beneficial properties; (iii) focus on honey and health through a literature quantitative analysis, and (iv) bee products explored through databases. Moreover, as an example of the interconnection between health, biodiversity, and sustainability, a case study, namely the “Cellulose Park”, realized in Rome (Italy), is presented here. This case study highlights how bee activities can be used to assess and track changes in the quality of agricultural ecosystems—hive products could be valid indicators of the quality and health of the surrounding environment, as well as the changes induced by the biotic and abiotic factors that impact the sustainability of agricultural production and biodiversity conservation in peri-urban areas.


Author(s):  
Innocent Pikirayi ◽  
Munyadziwa Magoma

Human-driven biodiversity destruction are responsible for significant and sustained heritage losses in Africa. In Venda, northern South Africa, biodiversity losses are eroding the existence of sacred places. Such places define the essence of indigenous people’s identity and well-being. We highlight how developments in Venda such as mining and agricultural expansion since apartheid times have destroyed biodiversity in the broader landscape, undermining efforts to reduce hunger and poverty. Thathe forest, Lake Fundudzi and Phiphidi waterfalls are central to Venda mythology and legends, origins and identity and are key towards conserving current biodiversity and heritage losses.


Hydrobiologia ◽  
2021 ◽  
Author(s):  
Andrey N. Reshetnikov ◽  
Daniil I. Korobushkin ◽  
Konstantin B. Gongalsky ◽  
Anastasia Yu. Korotkevich ◽  
Anastasia N. Selskaya ◽  
...  

2021 ◽  
Vol 66 (1) ◽  
pp. 15-27
Author(s):  
C. E. Luszczek ◽  
A. S. Medeiros ◽  
B. B. Wolfe ◽  
R. Quinlan

2020 ◽  
Vol 111 ◽  
pp. 106026
Author(s):  
Martina Čtvrtlíková ◽  
Jiří Kopáček ◽  
Jiří Nedoma ◽  
Petr Znachor ◽  
Jaroslav Vrba

2020 ◽  
Vol 3 (4) ◽  
Author(s):  
Elena Yu. Ivancheva ◽  
Victor P. Ivanchev ◽  
Irina Yu. Lychkovskaya

The long-term dynamics of the fish population was studied in the forest lake of the high floodplain of the Oka River, located in the southeastern Meshchera Lowlands. The maximum ecological capacity of the lake is fifteen fish species and the minimum, three fish species. The dynamics of the composition and species structure of the fish community depends on a number of factors. The most significant factors are the physico-chemical characteristics of the lake, the level of spring floods, and the interactions between aboriginal and invasive species.


2019 ◽  
Vol 116 (30) ◽  
pp. 15033-15041 ◽  
Author(s):  
Daniel Quinn ◽  
Daniel Kress ◽  
Eric Chang ◽  
Andrea Stein ◽  
Michal Wegrzynski ◽  
...  

Flying birds maneuver effectively through lateral gusts, even when gust speeds are as high as flight speeds. What information birds use to sense gusts and how they compensate is largely unknown. We found that lovebirds can maneuver through 45° lateral gusts similarly well in forest-, lake-, and cave-like visual environments. Despite being diurnal and raised in captivity, the birds fly to their goal perch with only a dim point light source as a beacon, showing that they do not need optic flow or a visual horizon to maneuver. To accomplish this feat, lovebirds primarily yaw their bodies into the gust while fixating their head on the goal using neck angles of up to 30°. Our corroborated model for proportional yaw reorientation and speed control shows how lovebirds can compensate for lateral gusts informed by muscle proprioceptive cues from neck twist. The neck muscles not only stabilize the lovebirds’ visual and inertial head orientations by compensating low-frequency body maneuvers, but also attenuate faster 3D wingbeat-induced perturbations. This head stabilization enables the vestibular system to sense the direction of gravity. Apparently, the visual horizon can be replaced by a gravitational horizon to inform the observed horizontal gust compensation maneuvers in the dark. Our scaling analysis shows how this minimal sensorimotor solution scales favorably for bigger birds, offering local wind angle feedback within a wingbeat. The way lovebirds glean wind orientation may thus inform minimal control algorithms that enable aerial robots to maneuver in similar windy and dark environments.


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