Roosts and Roosting Habits of Rose-ringed Parakeet (Psittacula krameri) in Central Punjab (Pakistan)

Khan, H. A.; Beg, M. A.

doi:10.3923/pjbs.1998.37.38

Cited by 7 publications

(8 citation statements)

References 2 publications

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“…Rebele (1994) and Butler (2003) showed that the proportion of rose-ringed parakeet populations in non-native ranges was higher in the urban landscapes than in suburban or rural ones. Rose-ringed parakeets primary occurrence in urban landscapes has since been reported globally (Butler 2005;Strubbe and Matthysen 2007;Ivanova and Symes 2019), particularly in Europe (Pârâu et al 2016;Grandi et al 2018), and in its native distribution range, especially in Pakistan (Khan 1999;Khan et al 2004). The social behaviour may explain the occurrence of rose-ringed parakeets in these anthropogenic dominated urban landscapes.…”

Section: Discussionmentioning

confidence: 99%

Population estimates of non-native rose-ringed parakeets Psittacula krameri (Scopoli, 1769) in the Durban Metropole, KwaZulu-Natal Province, South Africa

Shivambu

Downs

2020

Urban Ecosyst

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Rose-ringed parakeets Psittacula krameri are one of the most widely distributed urban avian invader species present in~35 countries with population sizes increasing. These parakeets were introduced to South Africa as part of the pet trade, and feral populations have established in several urban areas since and are of concern. We, therefore, conducted monthly surveys between August 2018 -December 2019 in the greater Durban Metropole, KwaZulu-Natal Province, to determine their population size and roosting sites. In addition, we recorded bird species that communally roosted with rose-ringed parakeets, and tree species characteristics that they used for roosting. We identified five main roost site areas with an overall mean (± SD) monthly population size of 1 783.3 ± 505.2 rose-ringed parakeets. There was an increase in rose-ringed parakeet numbers, particularly in August and December after their breeding. Most rose-ringed parakeets were recorded in the north, with fewer in the south of the metropole; and many were located around shopping centres and parks. A total of seven bird species communally shared roost sites with rose-ringed parakeets, with the non-native common myna Acridotheres tristis being the species that frequently shared roosts with parakeets. Three tree species were used as roosts, with the Natal mahogany Trichilia emetica and the giant palm Raphia australis, so being the preferred roost tree species. The results showed variations in the measured tree traits and the number of individual parakeets roosting per tree species. The population size of non-native rose-ringed parakeets showed persistent growth, and it is, therefore, suggested that control measures for this species are introduced before its population expands further.

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Section: Discussionmentioning

confidence: 99%

Population estimates of non-native rose-ringed parakeets Psittacula krameri (Scopoli, 1769) in the Durban Metropole, KwaZulu-Natal Province, South Africa

Shivambu

Downs

2020

Urban Ecosyst

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“…Peacock et al (2007) reported that these birds has adaptability potential for UR because buildings can provide nesting/roosting sites and human resources provide a variety of food items. High density of P. krameri in maize and cereal crops in agriculture habitat has been reported (Khan et al 2004). The high density and diversity of B. ibis was recorded near the water bodies (Changder et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Avian assemblage along an urban gradient: diversity, abundance and richness

et al. 2020

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Diversity in avian assemblages of urban (UR), peri-urban (PE) and rural (RU) areas was studied to explore variations in the avian community dynamics in rural – urban gradient. For this purpose, sampling was done from September 2013 to August 2015. A total of 35 sites, each covering an area of 300 m2 were sampled by using point count method. At each site, randomly three points (minimally 5 m apart from each other) were selected to study the birds. According to data, species richness (F2, 32=47.18, P<0.001) varied significantly along a rural-urban gradient. A significant difference in avian density per sampling site (F2, 32=105.41, P<0.001) was also observed along urbanization gradient. In PE and RU areas, avian assemblages were more diverse than UR areas. Among avian guilds, omnivores were the most abundant in UR while insectivores in PE areas. Frugivores and carnivores were abundant in RU areas. Granivores were recorded in all habitats with similar diversity. A close association was recorded in bird density of RU and PE areas than UR areas. Bird species richness and diversity showed negative correlation with built area and positive correlation with vegetation cover in an area.

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“…This seems not to be true for Alexandrine parakeets, as models with and without the human footprint have a similarly low predictive accuracy. This may be due to ecological differences between these two Psittacula species; ring-necked parakeets have benefited from the conversion of natural habitats to agro-ecosystems and now reach their highest breeding densities in urban areas (Khan 2002;Khan et al 2004). Although occasionally reported also in urban areas in the native range, Alexandrine parakeets are considered to be more sensitive to human-induced habitat alterations, as is also suggested by its IUCN status (BirdLife International 2015).…”

Section: Discussionmentioning

confidence: 99%

An overlooked invader? Ecological niche, invasion success and range dynamics of the Alexandrine parakeet in the invaded range

et al. 2015

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Parrots and parakeets (Aves, Psittaciformes) are prominent among avian invaders, as more than 16% of living species are currently breeding with at least one population outside their native range. Most studies have been carried out on ring-necked and monk parakeets, as they are the most successful invasive parrots globally. Recently, however, reports of invasive Alexandrine parakeet Psittacula eupatria have increased. Here, we summarize the current knowledge on the current occurrence of Alexandrine parakeets outside the natural range and assess the degree of niche conservatism during the invasion process. Our results show that Alexandrine parakeets have established invasive populations predominantly in Europe, parts of the Middle east and Far Eastern countries such as Japan and Singapore. During the ongoing invasion of Europe, the Alexandrine parakeet considerably expanded its niche into colder climates with respect to those occupied in the native range. Our results offer some support to the hypothesis that interspecific facilitation with previously established ring-necked parakeets Psittacula krameri may contribute to niche expansion and invasion success of congeneric Alexandrine parakeets. Species Distribution Models including both native and invaded range occurrence data predict a high invasion risk across multiple parts of the globe where the species iscurrently not yet present, thus indicating a high potential for the species for further invasion success and range expansion.

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Roosts and Roosting Habits of Rose-ringed Parakeet (Psittacula krameri) in Central Punjab (Pakistan)

Cited by 7 publications

References 2 publications

Population estimates of non-native rose-ringed parakeets Psittacula krameri (Scopoli, 1769) in the Durban Metropole, KwaZulu-Natal Province, South Africa

Population estimates of non-native rose-ringed parakeets Psittacula krameri (Scopoli, 1769) in the Durban Metropole, KwaZulu-Natal Province, South Africa

Avian assemblage along an urban gradient: diversity, abundance and richness

An overlooked invader? Ecological niche, invasion success and range dynamics of the Alexandrine parakeet in the invaded range

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