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Journal ArticleDOI

Insect diet of some afrotropical insectivorous passerines at the jos wildlife park, nigeria.

01 Jan 2011-Science World Journal (Kaduna State University, Faculty of Science)-Vol. 6, Iss: 4, pp 1-4

TL;DR: The study shows that insects utilised by avian insectivores in the Jos Wildlife Park is probably a reflection of insect abundance and diversity, and therefore insectivorous passerines may have adapted to feeding largely on abundant and diversed insect species present in the study area.

AbstractDespite being the most common avian dietary strategy, our understanding of the nutrition of avian insectivores lags behind that of less populous granivores, herbivores, and frugivores; thereby attracting research interest. Insect diet of Afrotropical insectivorous passerines at the Jos Wildlife Park was studied by trapping birds using mist nets in 2009. Trapped birds were identified and kept in a wooden box for 15 minutes to create a dark interior for the discharge of faeces. Insect remains in faecal droppings collected from individual passerines were identified to at least Order level. SPSS 2001 506 /id software packages was used for statistical analyses. Identified insect remains in faecal droppings of insectivorous passerines showed that there were 13 positively identified Orders. Ten Families belonging to the Orders Hymenoptera, Coleoptera, Orthoptera, Diptera, Isoptera, Anoplura and Mantodae were positively identified. There was a significant difference (One sample- T-test; t=5.05, df=18, P<0.001) in the choice of insect diet by the insectivorous passerines trapped during the study. Of the fragments recorded from the faecal droppings, 325(83%) constitute insect diet, 35(10%) plant materials and 25(7%) were unidentified. The study shows that insects utilised by avian insectivores in the Jos Wildlife Park is probably a reflection of insect abundance and diversity. Therefore insectivorous passerines may have adapted to feeding largely on abundant and diversed insect species present in the study area.

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Citations
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Journal ArticleDOI
TL;DR: This study successfully discerned more details on the diets of insectivorous birds inhabiting Malaysian forests, providing a foundation for future studies on the ecology and biology of understorey birds.
Abstract: Despite the importance of diet in avian ecology, knowledge of bird diet in tropical regions, particularly South-East Asia, is limited. Assessing predator–prey relationships of how energy flows acro...

8 citations


11 Mar 2015
Abstract: There was no monitoring specifically on fauna in the reclamation area of PT Adaro Indonesia. The objective of the research was to record fauna species in this area which had been revegetated less than two years ago. Diurnal birds as a main object were recorded through observation point and survey in four reclamation locations, but mammals, reptiles, and amphibians as supporting objects were recorded merely through survey. Data on birds was analyzed based on a five minute unit to obtain both relative frequency of presence and that of location utilization, but those of others were analyzed merely to list their presence. Thirty bird species, 1 mammal, 3 reptiles, and 4 amphibians were identified in the reclamation area, but each 1 species of mammal, reptile, and amphibian was not identified yet. Five bird species were always present in every location, although their relative frequencies of presence varied. They could be categorized as pioneer birds in the reclamation area. Nine bird species were found only in a certain location

6 citations


Dissertation
14 Dec 2019
Abstract: Tese de doutoramento em Biociencias, na especialidade de Ecologia, apresentada ao Departamento de Ciencias da Vida da Faculdade de Ciencias e Tecnologia da Universidade de Coimbra

5 citations


Cites background from "Insect diet of some afrotropical in..."

  • ...Such studies identify the food resources that provide the necessary nutrient and energy requirements of organisms (Turshak & Mwansat, 2011)....

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  • ...Diet studies deal with fundamental aspect of the biology of organisms and provide important information for a given set of evolutionary, ecological, and conservation questions (Turshak & Mwansat, 2011)....

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Journal ArticleDOI
15 Nov 2017-Ostrich
TL;DR: Observations showed that birds in the Jos Wildlife Park are orally susceptible to infection with protozoans, some of which have been reported to cause health implications in birds, and any measure to curtail environmental contamination by the parasites may improve ecosystem health and survival of avian species in the Park.
Abstract: Occasional screening of food and water quality available to organisms in protected areas could be beneficial to their successful conservation. This is important for areas receiving regular human visitors and exhibiting activities that may be detrimental to ecosystem health. This study determined the intestinal protozoan species harboured by insectivorous and granivorous birds within the Jos Wildlife Park, Nigeria and whether the two avian feeding guilds are more susceptible to protozoan infection through water or food (grass seeds and insects). Special boxes were used to collect faecal samples from trapped birds. Samples were later analysed in the laboratory for protozoans. Both food and water utilised by the birds in the area were microscopically screened. The composition and abundance of intestinal protozoans between the two feeding guilds did not show significant differences. However, considering parasite species individually, the degree of infection by protozoans such as Giardia lamblia was highly related to the range of infection sources that a feeding guild was exposed to. The composition of parasites observed in the two feeding guilds was strongly linked to both water bodies and avian diet obtainable in the Park. These observations showed that birds in the Park are orally susceptible to infection with protozoans, some of which have been reported to cause health implications in birds. Thus, any measure to curtail environmental contamination by the parasites may improve ecosystem health and survival of avian species in the Park.

3 citations


Journal ArticleDOI
TL;DR: This study compared the foraging sites of the Sunlark, Galerida modesta and Familiar Chart, Cercomela familiaris a week after fire engulfed about one third of the 300 ha of the Amurum Forest Reserve, Nigeria.
Abstract: Detailed investigation of the foraging site utilised by avian species may reveal the habitat factors important in their conservation. This study compared the foraging sites of the Sunlark, Galerida modesta and Familiar Chart, Cercomela familiaris (both African resident insectivorous birds) a week after fire engulfed about one third of the 300 ha of the Amurum Forest Reserve, Nigeria. Foraging sites were compared based on proxies of food availability (ant, grasshopper and other insect abundance) and vegetation structure. Data on food availability and vegetation structures were obtained by quadrate sampling while foraging spots were determined from four stratified transects each surveyed four times during the study. Food availability was not a significant predictor of foraging site characteristics between the two bird species. However of the nine vegetation variables measured, grass height and proportion of burned grass cover per foraging site significantly distinguished the foraging sites of the two bird species; Sunlark foraged more at sites with shorter grasses and high proportion of burned grass cover as compared to the Familiar Chat. The characteristics of the foraging sites observed might have implications on the foraging success of the birds in line with literature on the Influences of vegetation structure on avian foraging behaviour. Key words: Foraging site, Insectivorous birds, Burn, Vegetation structure, Food availability

2 citations


Cites background or result from "Insect diet of some afrotropical in..."

  • ...However, a recent study in similar environment (The Jos Wildlife Park, Nigeria) had reported the insect Orders Hymenoptera (e.g. ants) and Orthopterans (e.g. grasshoppers) as constituting the top three insect Orders in the diet of insectivorous birds in the area (Turshak and Mwansat, 2011)....

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  • ...grasshoppers) as constituting the top three insect Orders in the diet of insectivorous birds in the area (Turshak and Mwansat, 2011)....

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References
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01 Jan 1990
Abstract: A revised and updated edition of this textbook. As before the study of plant and animal ecology is fully integrated and mathematical and laborotory studies are described where necessary. Examples drawn from real ecological systems ilustrate the complexity of this subject and the involvement of diverse areas: descriptive natural history, physiology, behaviour, field experimentation and mathematical modelling. The authors attempt to encourage the reader to combine all the above facets, so that a balanced view emerges. Emphasis is placed on the clear presentation of mathematical aspects and the material aims to be accessible to the undergraduate with little experience and also stimulating to practising ecologists. This new edition contains two new chapters both of which consider areas of applied ecology which are relevant to contemporary global issues. The first considers the control of abundance; on the one hand the limiting of pest and weed populations, on the other, maintaining the biological diversity of endangered species. The second considers large areas as an extension of the discussion of communities. These "ecosystems" in the newest sense of the word are an important field of study when considering some of the important environmental problems facing mankind.

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TL;DR: Purpose and design in counting birds census errors territory mapping methods line transects point contacts catching and marking counting individual species counting colonial flocking and nesting birds distribution studies description and measurement of bird habitat chapter summaries and points to consider.
Abstract: Purpose and design in counting birds census errors territory mapping methods line transects point contacts catching and marking counting individual species counting colonial flocking and nesting birds distribution studies description and measurement of bird habitat chapter summaries and points to consider.

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TL;DR: This book discusses Habitat and Density Regulation, Habitat Fragments and Metapopulations, and Interactions Between Different Limiting Factors.
Abstract: Preview. Behaviour and Density Regulation: Social Systems and Status. Habitat and Density Regulation. Territorial Behaviour and Density Limitation. Density Dependence in Bird Populations. Habitat Fragments and Metapopulations. Natural Limiting Factors: Food-Supply. Nest-Sites. Predation. Parasites and Pathogens. Weather. Inter-Specific Competition. Interactions Between Different Limiting Factors. Human Impacts: Hunting and Pest Control. Pesticides and Pollutants. Extinction. Bibliography. Index.

1,985 citations


"Insect diet of some afrotropical in..." refers background in this paper

  • ...Fundamental to understanding the ecological requirements of a species is knowledge of its diet and the factors that affect food availability (Newton, 1998)....

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  • ...INTRODUCTION Fundamental to understanding the ecological requirements of a species is knowledge of its diet and the factors that affect food availability (Newton, 1998)....

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Book
01 Jan 1998
TL;DR: Dietary patterns anatomy and physiology of the digestive system digestion of food nutritional strategies and adaptations nutrient requirements amino acids lipids carbohydrates energy essential minerals nutrition and metabolism of vitamins.
Abstract: Dietary patterns anatomy and physiology of the digestive system digestion of food nutritional strategies and adaptations nutrient requirements amino acids lipids carbohydrates energy essential minerals nutrition and metabolism of vitamins.

537 citations


"Insect diet of some afrotropical in..." refers background in this paper

  • ...Despite being the most common dietary strategy, our understanding of the nutrition of insectivores lags behind that of less populous granivores, herbivores, and frugivores (Davies, 1977; Klasing, 2000 and Rodway & Cooke, 2002)....

    [...]

  • ...In terms of nutrition, insect diet is quite adequate as it is rich in easily digestible protein and fat though the digestibility of various parts largely depends on their chitin content (Kaspari & Joern, 1993; Klasing, 2000)....

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Journal ArticleDOI
01 Feb 1991-Ecology
TL;DR: Results of this study indicate that birds may track changes in resource abundance and suggest that preservation of many species and of the biotic integrity of entire systems may require conservation of large, connected blocks of suitable habitat.
Abstract: We studied temporal fluctuations in fruit production by plants and in pop- ulations of understory fruit-eating birds at three elevations (50, 500, and 1000 m) in Costa Rican wet forests over a 12-16 mo period to investigate effects of resource variation on bird movements and community structure We used mist nets to monitor changes in frugivore abundance, migration patterns, and breeding and molting cycles We sampled understory fruits of each forest concurrent with studies of frugivores Both frugivores and fruit exhibited considerable seasonal variation in abundance Peak frugivore capture rates occurred during peak periods of ripe fruit abundance Altitudinal migrants left lower mon- tane (1000 m) forest during periods of fruit scarcity and were present in lowland (50 m) and foothill (500 m) forest when ripe fruit was abundant Migrants, both altitudinal and temperate, accumulated fat before migration, and perhaps (for altitudinal migrants) in anticipation of breeding Some residents also put on fat before breeding Breeding was seasonal at all forests and occurred when ripe fruit abundance was low Results of this study indicate that birds may track changes in resource abundance Thus, variation in resource abundance influences dynamics of bird communities, both in terms of species composition and abundance Further, results illustrate the importance of viewing com- munities from different scales; dynamics at a local scale (eg, one elevation) can be influ- enced by changes in conditions (eg, fruit abundance) elsewhere That some species regularly move along elevational gradients implies that preservation of many species and of the biotic integrity of entire systems may require conservation of large, connected blocks of suitable habitat

366 citations


"Insect diet of some afrotropical in..." refers background in this paper

  • ...Diet requirements may limit populations and structure of communities (Loiselle & Blake, 1991; Malizia, 2001) and can also affect the evolutionary physiology, life history and behavior (Brändle et al., 2004), and influence patterns of habitat use as well as intra- and inter-specific interactions…...

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