Population increase and nest-site selection of Cattle Egrets<i>Bubulcus ibis</i>at a new colony in drylands of north-east Algeria

Sbiki, Majda; Chenchouni, Haroun; Bachir, Abdelkrim Si

doi:10.2989/00306525.2015.1067931

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Our results cleared that the primary branches of the tree crown received 61.48% of cattle egret nests, while the secondary branches received 38.52%. These results agreed with Sbiki et al (2015), they stated that cattle egret builds their nests mainly on the strong elementary branches of trees (30%) or minor branches at the periphery of the tree's crown (29%). In addition, cattle egret nests' were located nearby the trunk (54.07%), in the core of the tree (34.81%) and at the peripheral of the tree crown (11.11%).…”

Section: Discussionsupporting

confidence: 89%

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Bioecology and breeding performance of cattle egret (Bubulcus ibis) in selected sites at Sharkia Governorate, Egypt

Issa,

Ismail,

El-Bakhshawngi

et al. 2023

Braz. J. Biol.

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Cattle egret Bubulcus ibis, feeds on insect pests in many agro-ecosystems. Thus, there is an urgent need to study the breeding chronology of cattle egret, in order to develop suitable protection programs for this beneficial bird to perform its role as abiological control agent in Egyptian agro-ecosystems. The study was conducted at Sharkia Governorate, Egypt, from December 2018 to December 2020; in different habitats (irrigation canals, drainage canals, garbage collection areas and Abbasa ponds). The mean clutch size ranged from 2-5 eggs/nest with an incubation period ranging between 21-25 days. The mean percentage of hatching success was 90.21%, while the total number of mortality eggs was 47 and the total egg hatching was 433. Also the total number of nests located nearby tree trunks were 73, while nests located in the core of the tree were 47 nests, and nests located at the peripherals were 15 nests.

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Section: Discussionsupporting

confidence: 89%

“…Nests are placed in the forks of the trees, nearby the trunk, the core and the peripheral (Arendt and Arendt, 1988;Kour and Sahi, 2012). But the numbers of nests on the tree are affected by the tree species, and diameter of the trunk, and crown (Sbiki et al, 2015). The nests were…”

mentioning

confidence: 99%

Bioecology and breeding performance of cattle egret (Bubulcus ibis) in selected sites at Sharkia Governorate, Egypt

Issa,

Ismail,

El-Bakhshawngi

et al. 2023

Braz. J. Biol.

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“…This in no way excludes exploration of hills and arid areas when they are traversed by cattle. 8,9 The world invasion success of B. ibis is globally attributed to its high reproductive rate, exponential population growth, low mortality and long-life span, 10 and a few vertebrate predators. 11 In addition, the world geographical expansion of Cattle Egret was mainly favored by high reproductive parameters; that depends on the diet quality and quantity, which is related to the prey abundance and accessibility.…”

Section: Introductionmentioning

confidence: 99%

How food supply in rubbish dumps affects the breeding success and offspring mortality of cattle Egret Bubulcus ibis?

Gherbi-Salmi

Bachir

Ghazi

et al. 2021

Avian Biology Research

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The objective of this study was to evaluate the effect of food supply in garbage dumps on the reproductive fitness of Cattle Egret Bubulcus ibis and offspring losses. A total of 236 nests were monitored during two distinct periods of 2 years for each: 146 nests during a period without food supply in dumps (1998–1999) and 90 with food supply in dumps (2007–2008). The study was carried out in the colony of El-Kseur in the Lower Soummam Valley (northeast Algeria). For the entire study period, the mean of clutch size, average number of hatched chicks, productivity, and breeding success varied significantly between years (Kruskal–Wallis test: p < .05). Also, the average calculated losses for eggs, chicks, and total offspring vary significantly (Chi2 test: p > .0001). The clutch size and the number of hatched chicks per nest were highest during the period with food supply in garbage dump (respectively: 3.46 ± 0.86; 2.85 ± 1.11), compared to the period when cattle egrets feed in natural or agricultural habitats (3.04 ± 0.87; 2.54 ± 1.03). However, productivity and breeding success were highest during the period without food supply (respectively: 2.11 ± 1.16 fledging’s/nest; 0.70 ± 0.35) than in the period with food supply (1.14 ± 0.91; 0.35 ± 0.30). While egg losses were substantially similar between the two study periods, chick’s mortality (59.9%) and total offspring losses (36.7%) were higher during the period with food supply. The generalized linear mixed model (GLMM) analysis indicated a large negative effect of food supply in dumps on the productivity, on the chick’s losses; and a positive effect on the total offspring losses ( p < .001). Also, feed in dump garbage revealed a significant negative effect on the breeding success linear mixed model (LMM, p = .01). However, no significant effects (GLMM, p > .05) of food supply in dumps were noted on average clutch size, the mean number of hatched chicks per nest, and egg losses.

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Breeding ecology of the Cattle Egret (Bubulcus ibis) in Guerbes-Sanhadja wetlands of Algeria

Metallaoui

Dziri

Bousseheba

et al. 2020

Regional Studies in Marine Science

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Population increase and nest-site selection of Cattle EgretsBubulcus ibisat a new colony in drylands of north-east Algeria

Cited by 5 publications

References 12 publications

Bioecology and breeding performance of cattle egret (Bubulcus ibis) in selected sites at Sharkia Governorate, Egypt

Bioecology and breeding performance of cattle egret (Bubulcus ibis) in selected sites at Sharkia Governorate, Egypt

How food supply in rubbish dumps affects the breeding success and offspring mortality of cattle Egret Bubulcus ibis?

Breeding ecology of the Cattle Egret (Bubulcus ibis) in Guerbes-Sanhadja wetlands of Algeria

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