scholarly journals Impact of vehicular traffic on birds in Tiruchirappalli District, Tamil Nadu, India

2020 ◽  
Vol 12 (10) ◽  
pp. 16352-16356
Author(s):  
T. Siva ◽  
P. Neelanarayanan
Keyword(s):  
Tamil Nadu ◽  
Ecological Impacts ◽  
Vehicular Traffic ◽  
Common Myna ◽  
Jungle Crow ◽  
House Crow ◽  
Acridotheres Tristis

Roads have numerous direct and indirect ecological impacts on wildlife.  Roads constitute an extensive and integral part of our environment.  Collisions with vehicles kill a large number of birds every year.  The present study was carried out from January 2016 to December 2016.  The data was collected from Nehru Memorial College to Pavithram Lake of Thuraiyur to Namakkal road of Musiri Taluk, Tiruchchirappalli District.  During this study, we recorded a total of 64 birds belonging to 12 species killed due to vehicular traffic.  A maximum of 11 birds were killed in the months of January and October, and a minimum of two bird kills were observed in the months of September and December.  Of the 64 birds, the roadside mortality was observed to the tune of 25%, 20.3%, 14%, 12.5%, 10.9%, 4.6%, and 4.6% for Southern Coucal Centropus parroti, Common Myna Acridotheres tristis, House Crow Corvus splendens, Spotted Owlet Athene brama, Indian Jungle Crow Corvus culminatus, Yellow-billed Babbler Turdoides affinis, and Large Grey Babbler Turdoides malcolmi.  Other birds such as Asian Koel Eudynamys scolopaceus, Indian Roller Coracias benghalensis, Shikra Accipiter badius, White-breasted Waterhen Amaurornis phoenicurus, and White-browed Bulbul Pycnonotus luteolus accounted for 1.5% mortality.  Suggestive measures to prevent wildlife loss due to vehicular traffic are presented in this communication. 

Testis Growth and Regression in Harmful Birds in the Punjab in Relation to Some Environmental Factors.

1978 ◽  
Vol 26 (1) ◽  
pp. 39 ◽  
Author(s):  
HR Dang ◽  
SS Guraya
Keyword(s):  
Environmental Factors ◽  
Environmental Temperature ◽  
Passer Domesticus ◽  
Reproductive Behaviour ◽  
Testis Weight ◽  
Common Myna ◽  
House Crow ◽  
Acridotheres Tristis ◽  
The Common ◽  
Harmful Species

Testis growth and regression were studied, in relation to environmental temperature, sunshine, relative humidity and rainfall, in the house crow Corvus splendens, the common myna Acridotheres tristis and the house sparrow Passer domesticus, all of which are harmful species in the Punjab. Testis weight varied greatly during the year, but the species differed in their response to environmental conditions. The crow and the myna have active testes during May-July and April-July respectively; in the sparrow the testes are active twice in the year, February-June and September-October. The environmental factors are not sufficient to regulate the reproductive behaviour of these birds in the Punjab, and it is suggested that the reproductive state of birds is determined by a combination of exteroceptive and enteroceptive factors which varies considerably among species.

Observation record of the Common Myna (Acridotheres tristis) in South Korea

2020 ◽  
Vol 27 (2) ◽  
pp. 142-145
Author(s):  
Seok-Jun Son ◽  
Jae-Pyoung Yu ◽  
In-Kyu Kim ◽  
Jung-Lea Kim ◽  
Jung-Hoon Kang
Keyword(s):  
South Korea ◽  
Common Myna ◽  
Acridotheres Tristis ◽  
The Common

scholarly journals A survey of recent introduction events, spread and mitigation efforts of mynas (Acridotheres sp.) in Spain and Portugal

2015 ◽  
Vol 38 (1) ◽  
pp. 121-127
Author(s):  
S. Saavedra ◽  
◽  
A. Maraver ◽  
J. D. Anadón ◽  
J. L. Tella ◽  
...  
Keyword(s):  
Field Survey ◽  
Invasive Alien Species ◽  
Breeding Population ◽  
Island Populations ◽  
Common Myna ◽  
Breeding Populations ◽  
Preventive Actions ◽  
Acridotheres Tristis ◽  
The Common ◽  
Exponential Population Growth

The common myna Acridotheres tristis is listed among the world’s 100 worst invasive alien species. We combined previous records with a field survey to update the extent and fate of myna introductions in Spain and Portugal. Results suggest that there have been at least 22 independent accidental introductions of three myna species throughout the Iberian peninsula and three archipelagos since the early 1990s. While bank mynas (A. ginginianus) did not become established elsewhere, common mynas reached breeding populations on four islands. Eradication efforts allowed the extirpation of these breeding island populations, but common mynas continue to breed in the Tagus Estuary (continental Portugal). In this region, there is also a breeding population of crested mynas (A. cristatellus), which was undergone an exponential population growth in the last decade. To avoid further accidental introductions, eradication campaigns should be combined with preventive actions aiming to stop the trade of these species in Europe.

scholarly journals Is It Benign or Is It a Pariah? Empirical Evidence for the Impact of the Common Myna (Acridotheres tristis) on Australian Birds

PLoS ONE ◽  
2012 ◽  
Vol 7 (7) ◽  
pp. e40622 ◽  
Author(s):  
Kate Grarock ◽  
Christopher R. Tidemann ◽  
Jeffrey Wood ◽  
David B. Lindenmayer
Keyword(s):  
Empirical Evidence ◽  
Common Myna ◽  
Australian Birds ◽  
Acridotheres Tristis ◽  
The Common ◽  
The Impact

scholarly journals Managing alien bird species: Time to move beyond “100 of the worst” lists?

2015 ◽  
Vol 26 (2) ◽  
pp. 154-163 ◽  
Author(s):  
SABRINA KUMSCHICK ◽  
TIM M. BLACKBURN ◽  
DAVID M. RICHARDSON
Keyword(s):  
Invasive Species ◽  
Alien Species ◽  
Expert Opinion ◽  
Bird Species ◽  
Alien Invasive Species ◽  
Common Myna ◽  
Acridotheres Tristis ◽  
Pycnonotus Cafer ◽  
Selection Of Species ◽  
The Impact

SummaryAlien species can cause severe impacts in their introduced ranges and management is challenging due to the large number of such species and the diverse nature and context of their impacts. Lists of the most harmful species, like the “100 of the World’s Worst” list collated by the Invasive Species Specialist Group of the International Union for Conservation of Nature (IUCN) or the “100 of the Worst” invaders in Europe collated by the Delivering Alien Invasive Species Inventories in Europe (DAISIE) project, raise awareness about these impacts among the public, and can guide management decisions. Such lists are mainly based on expert opinion, but in recent years a more objective comparison of impacts has become possible, even between highly diverse taxa. In this study, we use a semi-quantitative generic impact scoring system to assess impacts of the three birds listed among the “100 of the World’s Worst” IUCN list (IUCN100) and the four birds on the list of “100 of the Worst” European invaders by DAISIE (DAISIE100) and to compare their impacts with those of other alien birds not present on the respective lists. We found that generally, both lists include some of the species with the highest impacts in the respective regions (global or Europe), and these species therefore deserve the dubious honour of being listed among the “worst”. However, there are broad overlaps between some species with regards to the impact mechanisms and the related issues of invasions, especially those of the Common Myna Acridotheres tristis and Red-vented Bulbul Pycnonotus cafer on the IUCN100, are very similar which might not warrant listing both species. To make the selection of species on such lists more transparent we suggest moving beyond lists based on expert opinion to a more transparent and defendable system for listing alien species based on published records of their impacts and related mechanisms.

Common Myna (Acridotheres tristis)

2001 ◽  
Author(s):  
Ragupathy Kannan ◽  
Douglas A. James
Keyword(s):  
Common Myna ◽  
Acridotheres Tristis
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