scholarly journals Bombus gerstaeckeri Morawitz, 1881 (Hymenoptera, Apidae) : observations sur la biologie d’un bourdon localisé et oligolectique

Osmia ◽  
2012 ◽  
Vol 5 ◽  
pp. 12-14
Author(s):  
Simon Dellicour ◽  
Nicolas J. Vereecken ◽  
Denis Michez

Bombus gerstaeckeri Morawitz, 1881 (Hymenoptera, Apidae): observations on the biology of a localized and oligolectic bumblebee. - Bombus gerstaeckeri Morawitz 1881 is a particular species for its scarcity and oligolecty on species of the genus Aconitum (Ranunculaceae). We performed a sampling of B. gerstaeckeri across its entire distribution range during the summers of 2010 and 2011, in the framework of a study on the evolution of floral specialisation with a phylogeographic approach in the subgenus Megabombus. Here we present recent observations during our field surveys.

2013 ◽  
Vol 22 (23) ◽  
pp. 5936-5948 ◽  
Author(s):  
Martin Mendez ◽  
Thomas A. Jefferson ◽  
Sergios-Orestis Kolokotronis ◽  
Michael Krützen ◽  
Guido J. Parra ◽  
...  

2019 ◽  
Vol 19 (5) ◽  
Author(s):  
Huanwen Meng ◽  
Hongyou Zhou ◽  
Lihua Wang ◽  
Xiaoyu Zhang ◽  
Wanyou Liu ◽  
...  

Abstract Rhinoncus sibiricus Faust, a major pest of buckwheat, has invaded the buckwheat cultivation areas of China for years. This pest was first found in Russia in 1940, causing great damage during the entire buckwheat-growing season. In China, there are few records on R. sibiricus, and studies regarding pest damage on buckwheat are unknown. The occurrence and distribution of this species in China is still not clear. We therefore conducted field surveys for 6 yr to identify the distribution range and the degree of pest damage caused by R. sibiricus in the buckwheat-planting areas of China and tested its preference for two Fagopyrum species in common garden experiments. The results showed that R. sibiricus had a larger distribution range in the Northern rather than the Southern part of China, and that pest damage was more serious in northern China. The pest preferred F. tataricum (Tartary buckwheat, Polygonales: Polygonaceae) over F. esculentum (Common buckwheat, Polygonales: Polygonaceae), but caused damage to both, indicating its potential for distribution in southern China. This study clarified the occurrence, distribution, and damage traits of R. sibiricus in the buckwheat cultivation areas of China, which will help explain the pest attack traits and inform strategies for pest control and prediction.


2021 ◽  
Author(s):  
Mario Blanco‐Sánchez ◽  
Michael J. Moore ◽  
Marina Ramos‐Muñoz ◽  
Beatriz Pías ◽  
Alfredo García‐Fernández ◽  
...  

2019 ◽  
Vol 188 (1) ◽  
pp. 147-150
Author(s):  
Petr Benda ◽  
Mohammed Shobrak ◽  
Jiří Šmíd

Abstract A new record of the Midas free-tailed bat, Mops midas (Sundevall, 1843), from Saudi Arabia is presented. This new record is the northernmost occurrence point of this rare bat in Arabia (ca. 160 km NNW of the closest previous site) and also within its entire distribution range.


2020 ◽  
Vol 41 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Melita Vamberger ◽  
Cäcilia Spitzweg ◽  
Anslem de Silva ◽  
Rafaqat Masroor ◽  
Peter Praschag ◽  
...  

Abstract Geochelone elegans is one of the most heavily traded tortoise species of the world, and confiscated tortoises are frequently released into the wild, without knowledge about their origin. Using for the first time samples from Pakistan and Sri Lanka, we examined phylogeographic differentiation of G. elegans using 2289 bp of mitochondrial DNA. We found weak intraspecific differentiation without a clear geographic pattern. We suggest that natural phylogeographic differentiation may have been already destroyed by massive releases of confiscated non-native tortoises. The presence of two distinct clades on Sri Lanka, however, could also be the result of a natural range expansion of a mainland lineage into the distribution range of a lineage endemic to Sri Lanka during Pleistocene low sea level stands. We propose that a systematic screening of the genetic differentiation of wild G. elegans should be conducted across its entire distribution range to provide a sound basis for the relocation of confiscated tortoises.


2018 ◽  
Vol 10 (8) ◽  
pp. 12123
Author(s):  
Prem K. Chhetri ◽  
Alexander R. O’Neill ◽  
Bijoy Chhetri

Balanophora J.R. Forster & G. Forster (Balanophoraceae) is a poorly studied genus of root holoparasite native to temperate and tropical regions of Asia and the Pacific.  The occurrences of Balanophora polyandra Griff. were first reported within two protected areas in eastern Himalaya (Sikkim, India), namely, Khangchendzonga National Park and Pangolakha Wildlife Sanctuary.  The study assessed the distribution range of B. polyandra in Sikkim using data collected from both field surveys and herbarium records, and discussed the threats faced by Balanophora populations in the region.


TERRITORIO ◽  
2020 ◽  
pp. 148-163
Author(s):  
Luca Fondacci

In the 1970s, the fragile historical centre of the city of Perugia was a key area where the binomial of sustainable mobility and urban regeneration was developed and applied. At the turn of the xxi century, the low carbon automatic people-mover Minimetrò broadened that application from the city's historical centre to the outskirts, promoting the enhancement of several urban environments. This paper is the outcome of an investigation of original sources, field surveys and direct interviews, which addresses the Minimetrò as the backbone of a wide regeneration process which has had a considerable impact on the economic development of a peripheral area of the city which was previously devoid of any clear urban sense. The conclusion proposes some solutions to improve the nature of the Minimetrò as an experimental alternative means of transport.


2020 ◽  
Vol 4 (1) ◽  
pp. 27-42
Author(s):  
Wiyoga Triharto ◽  
Bambang Perkasa Alam

Ratu harbor beach is one of the mainstay tourist sites for the Regional Government of Sukabumi Regency in bringing PAD, besides public transportation facilities and terminals have a major role in supporting the queen port as a tourist attraction so that tourists are comfortable and facilitated in accessing through public transportation. The condition of the Pelabuhan Ratu Terminal, Sukabumi Regency is currently very poor, poorly maintained, and many supporting facilities are damaged and inadequate. This study aims to identify problems and formulate the type B terminal arrangement in Sukabumi Regency. The method used is descriptive qualitative in order to get a picture of the problems of the situation and conditions currently taking place or occurring in the present and the study of policies. Collecting data by field surveys, literature studies and interviews. The results in this study get a terminal B type terminal design concept Sukabumi Regency according to current and future needs.


2012 ◽  
Vol 11 (2) ◽  
pp. 137-156 ◽  
Author(s):  
N.I. Abramson ◽  
T.V. Petrova ◽  
N.E. Dokuchaev ◽  
E.V. Obolenskaya ◽  
A.A. Lissovsky

2017 ◽  
Vol 24 (2) ◽  
pp. 99 ◽  
Author(s):  
Hou Mian ◽  
Yu Guo-hua ◽  
Chen Hong-man ◽  
Liao Chang-le ◽  
Zhang Li ◽  
...  

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