Red-vented Bulbul (Pycnonotus cafer)

2020 ◽  
Author(s):  
Kamal Islam ◽  
Richard N. Williams
Keyword(s):  
Pycnonotus Cafer

Red-vented Bulbul (Pycnonotus cafer)

2000 ◽  
Author(s):  
KAMAL ISLAM ◽  
RICHARD N. WILLIAMS
Keyword(s):  
Pycnonotus Cafer

HYBRIDIZATION IN SOME INDIAN BULBULS PYCNONOTUS CAFER X P. LEUCOGENYS

Ibis ◽  
2008 ◽  
Vol 101 (2) ◽  
pp. 177-182 ◽  
Author(s):  
Charles G. Sibley ◽  
Lester L. Short
Keyword(s):  
Pycnonotus Cafer

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.

scholarly journals Passerine birds supporting cross pollination in Erythrina stricta Roxb.

Dendrobiology ◽  
2021 ◽  
Vol 85 ◽  
pp. 117-126
Author(s):  
Vinod Prasad Khanduri ◽  
Kewat Sanjay Kumar ◽  
Chandra Mohan Sharma ◽  
Manoj Kumar Riyal ◽  
Kalpataru Kar ◽  
...  
Keyword(s):  
Reproductive System ◽  
Tree Species ◽  
Bird Species ◽  
Pollination Experiments ◽  
Controlled Pollination ◽  
Cross Pollination ◽  
Nectar Feeding ◽  
Flowering Season ◽  
Pycnonotus Cafer ◽  
Nectar Robbers

Erythina stricta is an ecologically important tree species in the rainforests of India and its nectar within the flowers contributes to birds’ diet and survival. Reports on the pollination of this species have not been published so far. We therefore explore the reproductive system of this tree species which has great significance to its ecosystem. Birds have an important role in the reproduction of trees through pollination particularly in tropical areas where reproductive success mostly depends on animal pollinator interactions. Study of visitation and nectar feeding behaviour of birds along with breeding system assessment of Erythina stricta. Birds visiting and foraging behaviour was observed during Erythrina stricta flowering season in an indian tropical rainforest. Reproductive system was assessed through controlled pollination experiments. Thirteen bird species were recorded visiting and foraging nectar from the flowers of Erythrina stricta. The maximum numbers of visits recorded were from the Red-vented Bulbul (Pycnonotus cafer, Pycnonotidae). The nectar feeding birds were, either (i) potential pollinator with long bills (e.g. Pycnonotus spp., Chloropsis aurifrons, and Dicrurus spp.) or (ii) nectar robbers with comparatively shorter bills (e.g. Zosterops palpebrosa, Stachyris ruficeps, Macronous gularis, Heterophasia glaciris). Controlled pollination experiments revealed high degree of cross pollination (xenogamy) and self-incompatibility in E. stricta. Birds were more frequent in early mornings and their foraging activity was also observed during evening hours; the frequency however, declined with respect to nectar availability. Long corolla tubes of E. stricta could restrict access to nectar collecting bees.

scholarly journals A reassessment of the avian species diversity in the Eastern Ghats of Tamil Nadu, after the Vernay Survey

2017 ◽  
Vol 9 (8) ◽  
pp. 10538
Author(s):  
J. Patrick David ◽  
R.J. Ranjit Daniels ◽  
Vinoth Balasubramanian
Keyword(s):  
Species Diversity ◽  
Tamil Nadu ◽  
Abundant Species ◽  
Avian Species ◽  
Eastern Ghats ◽  
Bird Conservation ◽  
Bird Survey ◽  
Comprehensive Survey ◽  
Primary Focus ◽  
Pycnonotus Cafer

The Eastern Ghats of Tamil Nadu have been poorly surveyed for birds.  The best known bird survey in the Eastern Ghats of Tamil Nadu (EGTN) was by V.S. LaPersonne who carried out the the Surveys in Tamilnadu Eastern Ghats between 08th April, 1929 and 25th July 1929. This was reported by WHistler & Kinnear.  Thereafter information about birds in EGTN has come only from checklists published from time to time, by researchers, whose primary focus was not birds.  Hence, to fill this lacuna, a comprehensive survey of birds was undertaken in the EGTN from March 2012-–--February 2015.  The objectives of the study were to document the avian richness and abundance in EGTN, put them in perspective to the Vernay Survey conducted more than 80 years back, and identify priority sites for bird conservation.  The study covered the hills and forests of Tamil Nadu spanning nine districts.  In total, 262 species of birds were recorded during the survey.  Eight species of birds fall under the threatened category.  Species such as Square-tailed Bulbul Hypsipetes (lecocephalus) ganeesa, Rufous Woodpecker Micropternus brachyurus, Asian Fairy Bluebird Irena puella, and Malabar Whistling Thrush Myophonus horsfieldii still persist in the same old sites reported in the Vernay Survey.  The top five abundant species were the Red-vented Bulbul Pycnonotus cafer, White-browed Bulbul Pycnonotus luteolus, Red-whiskered Bulbul Pycnonotus jocosus, Common Iora Aegithina tiphia, and Purple-rumped Sunbird Leptocoma zeylonica.  The Vaniyar riparian tract in the Shevroys, from its origins in the hills to the Vaniyar dam downstream, is a potential bird conservation site in the Eastern Ghats of Tamil Nadu.

scholarly journals Acoustic communication in the Red-vented Bulbul Pycnonotus cafer

2004 ◽  
Vol 76 (2) ◽  
pp. 350-358 ◽  
Author(s):  
Anil Kumar
Keyword(s):  
Acoustic Communication ◽  
Wide Band ◽  
Predation Pressure ◽  
Alarm Calls ◽  
Type I ◽  
Structural Variations ◽  
Pair Bonds ◽  
Contact Calls ◽  
Pycnonotus Cafer ◽  
Context Specific

This paper deals with acoustic communication in the Red-vented Bulbul Pycnonotus cafer. This species emits a high variety of vocal signals that can be classified on the basis of their acoustical features and context of production. Individuals sang throughout the year and most songs were discrete and stereotyped. The songs were composed of strophes (phrases) with minor structural variations of elements that were preceded and followed by a temporal gap (3 to 12s). Most strophes were composed of 2 to 6 elements that were often dissimilar in structure and ranging from 0.98 to 4.5 kHz. The biological function of the song appeared to be to maintain pair bonds and to synchronize breeding activities. Different types of context-specific calls were identified. Individuals produced Type-I alarm calls (fast and wide-band, 1.03 to 6.36 kHz) under low predation pressure andType-II calls (narrowfrequency range, 1.37 to 3.39 kHz) under high predation pressure. Roosting calls were fast and wide-band signals phonetically similar to Type-I alarm calls. Three types of begging/contact calls were recorded in nestlings/fledglings. Greeting calls and flight calls were composed of complex phrases, like song, but were short and used for proximate functions.

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