Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Mais filtros

Base de dados
Ano de publicação
Tipo de documento
Intervalo de ano de publicação
1.
J. Anim. Behav. Biometeorol. ; 09(03): 1-6, July 2021. mapas, graf
Artigo em Inglês | VETINDEX | ID: vti-32775

Resumo

During the breeding season, many avian species face spatial and seasonal variation in the availability of food resources required to rear chicks. Reduction of food abundance is often identified as the most important factor determining population trends and breeding success in bird species, such as the vulnerable European Turtle dove Streptopelia turtur. During the breeding periods, the increase of food requirements in chicks should increase foraging effort to maintain the amount of food required for optimal chick growth. To investigate the feeding effort of Turtle doves during the breeding season, we monitored foraging and drinking rates, in different wild habitats and farmlands, from March to September 2016-2017 in Midelt, Morocco. Similarly, breeding chronology, including nesting, laying, and chicks' fledging, were monitored in the same habitats to evaluate the correlation between breeding efforts and foraging rates. We found that Turtle doves feed actively from the arrival to departure dates. Foraging activities were intense during breeding phases, mainly laying and chicks' growth periods. Equally, Doves feed intensively during the end of the breeding season before migration departures. Besides, Doves feed actively during the morning and evening to avoid the hottest periods as a strategy to save metabolic water.(AU)


Assuntos
Animais , Feminino , Aves/crescimento & desenvolvimento , Reprodução , Dieta , Migração Animal
2.
J. Anim. Behav. Biometeorol ; 9(3): 1-6, July 2021. map, graf
Artigo em Inglês | VETINDEX | ID: biblio-1484362

Resumo

During the breeding season, many avian species face spatial and seasonal variation in the availability of food resources required to rear chicks. Reduction of food abundance is often identified as the most important factor determining population trends and breeding success in bird species, such as the vulnerable European Turtle dove Streptopelia turtur. During the breeding periods, the increase of food requirements in chicks should increase foraging effort to maintain the amount of food required for optimal chick growth. To investigate the feeding effort of Turtle doves during the breeding season, we monitored foraging and drinking rates, in different wild habitats and farmlands, from March to September 2016-2017 in Midelt, Morocco. Similarly, breeding chronology, including nesting, laying, and chicks' fledging, were monitored in the same habitats to evaluate the correlation between breeding efforts and foraging rates. We found that Turtle doves feed actively from the arrival to departure dates. Foraging activities were intense during breeding phases, mainly laying and chicks' growth periods. Equally, Doves feed intensively during the end of the breeding season before migration departures. Besides, Doves feed actively during the morning and evening to avoid the hottest periods as a strategy to save metabolic water.


Assuntos
Feminino , Animais , Aves/crescimento & desenvolvimento , Dieta , Reprodução , Migração Animal
3.
J. Anim. Behav. Biometeorol. ; 08(03): 206-214, July 2020. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: vti-763887

Resumo

Breeding success plays a crucial role in the dynamics of bird populations and yet is the least-studied avian life-stage. Habitat quality during breeding phase may have important implications for survival and conservation, particularly for declining populations in landscapes that have undergone wide-scale human modification. The European Turtle dove is a widespread but fast declining species both in breeding and wintering zones. Reduced food availability isthought to influence breeding success of this game species, but it is not known how agriculture practices could influence breeding Doves, in its high altitude breeding zones. Here, wemonitored Turtle dove nests in apple orchards from early Marsh to the end of October 2015. Nest-tree support, breeding success, and predation were determined and analysed depending on agricultural practices. Compared to prune, cherry and other plantation, apple orchards had the highest overall Turtle doves' nests (85%). However, 60% of recorded nests were located on Golden delicious, where are noted thehighest nesting success rates (respectively 77.6% and 57.9%for eggs and chicks). However, Turtle dove showed high rate of nesting failure in the Midelt region, more especially inapple orchards, and this is mainly due to predation attacks, which caused a loss of 77.8% of broods, both among eggs and chicks. In addition, several farming practices in apple orchards influenced significantly nesting success of this species. In fact, this game bird does not breed in the orchards covered by hailnets. Similarly, tree pruning disturb doves nesting on apples.(AU)


Assuntos
Animais , Aves/crescimento & desenvolvimento , Reprodução
4.
J. Anim. Behav. Biometeorol ; 8(3): 206-214, July 2020. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1484315

Resumo

Breeding success plays a crucial role in the dynamics of bird populations and yet is the least-studied avian life-stage. Habitat quality during breeding phase may have important implications for survival and conservation, particularly for declining populations in landscapes that have undergone wide-scale human modification. The European Turtle dove is a widespread but fast declining species both in breeding and wintering zones. Reduced food availability isthought to influence breeding success of this game species, but it is not known how agriculture practices could influence breeding Doves, in its high altitude breeding zones. Here, wemonitored Turtle dove nests in apple orchards from early Marsh to the end of October 2015. Nest-tree support, breeding success, and predation were determined and analysed depending on agricultural practices. Compared to prune, cherry and other plantation, apple orchards had the highest overall Turtle doves' nests (85%). However, 60% of recorded nests were located on Golden delicious, where are noted thehighest nesting success rates (respectively 77.6% and 57.9%for eggs and chicks). However, Turtle dove showed high rate of nesting failure in the Midelt region, more especially inapple orchards, and this is mainly due to predation attacks, which caused a loss of 77.8% of broods, both among eggs and chicks. In addition, several farming practices in apple orchards influenced significantly nesting success of this species. In fact, this game bird does not breed in the orchards covered by hailnets. Similarly, tree pruning disturb doves nesting on apples.


Assuntos
Animais , Aves/crescimento & desenvolvimento , Reprodução
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA