Articles by Keyword: Nest Desertion

Search results for Nest Desertion

We found 33 results for you
  1. Distribution and breeding ecology of the Ferruginous Duck <em>Aythya nyroca</em> in Algeria

    Distribution and breeding ecology of the Ferruginous Duck <em>Aythya nyroca</em> in Algeria

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    We conducted a survey of the distribution of Ferruginous Duck Aythya nyroca across Algeria and analysed the influence of nest-site characteristics on nesting success at a Ramsar site, Lake Tonga. The species was found to occupy different wetlands (freshwater lakes,...
  2. WELL-BOUNDED OPERATORS ON NON-REFLEXIVE BANACH SPACES II

    WELL-BOUNDED OPERATORS ON NON-REFLEXIVE BANACH SPACES II

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    In this paper we examine the relationship between the various subclasses of well-bounded operators. Although some of these subclasses have been shown to coincide on certain families of Banach spaces, we show here that apart from these previously known cases,...
  3. Nest characteristics of Yellow-billed Kites <em>Milvus aegyptius</em> in the Manambolomaty Lakes Complex, western Madagascar

    Nest characteristics of Yellow-billed Kites <em>Milvus aegyptius</em> in the Manambolomaty Lakes Complex, western Madagascar

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    We studied the nesting biology of Yellow-billed Kites Milvus aegyptius in the Manambolomaty Lakes Complex of western Madagascar during 2002 and 2003. We recorded 64 nesting attempts. In 2003, 33% (n = 39 nests) of the occupied nests were from...
  4. Ground cavity nest temperatures and their relevance to Blue Swallow <em>Hirundo atrocaerulea</em> conservation

    Ground cavity nest temperatures and their relevance to Blue Swallow <em>Hirundo atrocaerulea</em> conservation

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Blue Swallows Hirundo atrocaerulea are Critically Endangered within South Africa. They nest in natural underground holes in mist-belt grasslands. Temperature dataloggers were used to record ground cavity nest (Tn) and ambient temperature (Ta) for one artificial and 11 natural Blue...
  5. Filial cannibalism in the Chestnut-backed Sparrow-lark <em>Eremopterix leucotis</em>

    Filial cannibalism in the Chestnut-backed Sparrow-lark <em>Eremopterix leucotis</em>

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Cannibalism is a rare event in passerines, especially filial cannibalism. Here I report on two instances of filial cannibalism observed in the Chestnut-backed Sparrow-lark Eremopterix leucotis in the Limpopo province, South Africa. In both instances it was only the females...
  6. Nest Densities of the Wandering Albatross <em>Diomedea Exulans</em> at the Prince Edward Islands, Estimated Using Gps

    Nest Densities of the Wandering Albatross <em>Diomedea Exulans</em> at the Prince Edward Islands, Estimated Using Gps

    Item type: Journal Article • Journal: African Journal of Marine Science
    Hand-held Global Positioning System (GPS) receivers provide opportunities for detailed and rapid mapping of features, including biological ones, further enhanced by the removal during 2000 of "selective availability". GPS was used to map, describe and compare nest densities within wandering...
  7. Guidelines for the design and management of artificial raptor perches and nest-tree stands on forestry estates in South Africa

    Guidelines for the design and management of artificial raptor perches and nest-tree stands on forestry estates in South Africa

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    The aim of this paper is to provide timber growers with silvicultural guidelines for the establishment of raptor perches and nest stands on forestry estates. Rodents do extensive damage to young saplings and as an ecologically friendly alternative to rodenticides,...
  8. Breeding ecology of the Chestnut-backed Sparrowlark <em>Eremopterix leucotis</em> in an agroecosystem in the Limpopo province, South Africa

    Breeding ecology of the Chestnut-backed Sparrowlark <em>Eremopterix leucotis</em> in an agroecosystem in the Limpopo province, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    We studied the breeding ecology of the Chestnut-backed Sparrowlark Eremopterix leucotis over three years between 2008 and 2010. The breeding season was bimodal with a main peak in laying in autumn (March–April) and another smaller peak in spring (September–October). Nest...
  9. Nest position and type affect predation rates of artificial avian nests in the tropical lowland forest on Mount Cameroon

    Nest position and type affect predation rates of artificial avian nests in the tropical lowland forest on Mount Cameroon

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Nest predation is the leading cause of reproductive failure in birds and thus it shapes their life history strategies. Intensities of nest predation appear to differ among nest locations and types in both temperate and tropical regions. However, there is...
  10. Lumbering the gauntlet: Cape Gannet fledglings killed by African Penguins

    Lumbering the gauntlet: Cape Gannet fledglings killed by African Penguins

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    This account presents the first known observations of Cape Gannet Morus capensis fledgling mortalities as a result of aggressive nest defence behaviour by African Penguins Spheniscus demersus. Observations were conducted in 2013 on Bird Island, Algoa Bay, South Africa –...