Helminth parasite diversity discloses age and sex differences in the foraging behaviour of southern lapwings (<i>Vanellus chilensis</i>
)

Silveira, T.; Calegaro-Marques, Cláudia

doi:10.1111/aec.12344

Cited by 5 publications

(4 citation statements)

References 53 publications

(60 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Migratory raptors preying primarily on vertebrates had more nematode superfamilies than those that fed on a mix of vertebrate and invertebrate prey. This was unexpected as host species with a more varied diet are usually associated with richer communities of parasites (McLaughlin & McGurk 1987;Locke, Marcogliese & Valtonen 2014;Silveira & Calegaro-Marques 2016;Thieltges & Poulin 2016), as reported for this host order in other studies (Santoro et al 2012a,b). One possibility might be that migratory raptors that usually prey on vertebrate animals within their usual range switch their diet to include invertebrates during migration (Bildstein 2006), allowing them to acquire nematodes that use these hosts during the wintering period.…”

Section: Discussionsupporting

confidence: 64%

Section: Discussionsupporting

confidence: 50%

See 1 more Smart Citation

Nematode parasite diversity in birds: the role of host ecology, life history and migration

Leung

Koprivnikar

2016

J Anim Ecol

View full text Add to dashboard Buy / Rent full text

Previous studies have found that migratory birds generally have a more diverse array of pathogens such as parasites, as well as higher intensities of infection. However, it is not clear whether this is driven by the metabolic and physiological demands of migration, differential selection on host life-history traits or basic ecological differences between migratory and non-migratory species. Parasitic helminths can cause significant pathology in their hosts, and many are trophically transmitted such that host diet and habitat use play key roles in the acquisition of infections. Given the concurrent changes in avian habitats and migratory behaviour, it is critical to understand the degree to which host ecology influences their parasite communities. We examined nematode parasite diversity in 153 species of Anseriformes (water birds) and Accipitriformes (predatory birds) in relation to their migratory behaviour, diet, habitat use, geographic distribution and life history using previously published data. Overall, migrators, host species with wide geographic distributions and those utilizing multiple aquatic habitats had greater nematode richness (number of species), and birds with large clutches harboured more diverse nematode fauna with respect to number of superfamilies. Separate analyses for each host order found similar results related to distribution, habitat use and migration; however, herbivorous water birds played host to a less diverse nematode community compared to those that consume some animals. Birds using multiple aquatic habitats have a more diverse nematode fauna relative to primarily terrestrial species, likely because there is greater opportunity for contact with parasite infectious stages and/or consumption of infected hosts. As such, omnivorous and carnivorous birds using aquatic habitats may be more affected by environmental changes that alter their diet and range. Even though there were no overall differences in their ecology and life history compared with non-migrators, migratory bird species still harboured a more diverse array of nematodes, suggesting that this behaviour places unique demands on these hosts and warrants further study.

show abstract

Section: Discussionsupporting

confidence: 64%

Section: Discussionsupporting

confidence: 50%

Nematode parasite diversity in birds: the role of host ecology, life history and migration

Leung

Koprivnikar

2016

J Anim Ecol

View full text Add to dashboard Buy / Rent full text

show abstract

“…Parasites are important sources of information on the ecology and behavior of their hosts (Combes, 2004). They are particularly informative for disclosing aspects that are difficult or impossible to record via behavioral observations, such as the identity of diminutive or concealed prey species (Calegaro‐Marques & Amato, 2010b, 2013) or the hosts' sex of monomorphic species (Silveira & Calegaro‐Marques, 2016) among other limitations inherent to field research.…”

Section: Introductionmentioning

confidence: 99%

Necropsies disclose a low helminth parasite diversity in periurban howler monkeys

Lopes

Calegaro-Marques

Klain

et al. 2021

American J Primatol

View full text Add to dashboard Buy / Rent full text

Primate-parasite interactions are often investigated via coprological studies given ethical and conservation restrictions of collecting primate hosts. Yet, these studies are inadequate to recover adult helminths for taxonomic identification and to accurately assess their prevalence, intensity, abundance, and site of infection. Fresh carcasses found in anthropogenic landscapes come as informative and reliable alternatives. In this study, we identified the helminths of brown howler monkeys (Alouatta guariba clamitans) and their sites of infection, and measured their prevalence, intensity, and abundance of infection. We necropsied 18 adult males, 11 adult females, and 7 juvenile males that died in conflicts with the anthropogenic environment (domestic dog attacks, n = 11; electrocutions and road-kills, n = 10 each; unknown, n = 5) in periurban landscapes of southern Brazil between 2013 and 2019. We found three nematodes (Trypanoxyuris minutus, Dipetalonema gracile, and Parabronema bonnei) and one cestode (Bertiella cf. studeri), a diversity estimated to account for a sampling completeness of 99%. Prevalence ranged from 3% for P. bonnei to 100% for T. minutus. Mean abundance ranged from 2 (D. gracile and B. cf. studeri) to 55,116 (T. minutus) and mean intensity of infection ranged from 4 (B. cf. studeri) to 55,116 (T. minutus). Trypanoxyuris minutus sex ratio was strongly malebiased. The intensity of infection with T. minutus was higher in juvenile males and adult females than in adult males. The low parasite diversity and the helminths' mode of transmission are compatible with howlers' arboreality and folivorous-frugivorous diet. The howlers were not infected with soil-transmitted helminth parasites of humans and domestic animals on the ground and probably did not eat invertebrates to complement the diet. Given the lack of evidence of howler health problems, we suggest that the causes of death of the necropsied howlers are the major threats to the long-term conservation of the species at the study periurban landscapes.

show abstract

“…[46]: p. 508]). Lapwings feed on small invertebrates, such as earthworms, mollusks, spiders, woodlice, hemipterans, ground beetles, weevils, grasshoppers, and hymenopterans, as well as larvae of lepidopterans, coleopterans, and dipterans, using a run-and-pause technique that includes quick pecks and shallow probing on land [44,47,66,76–78] and sometimes foot-trembling in shallow water [45,54]. During the dry season, grassland-inhabiting invertebrates become less accessible to the birds.…”

Section: Discussionmentioning

confidence: 99%

Automated Sound Recognition Provides Insights into the Behavioral Ecology of a Tropical Bird

et al. 2017

View full text Add to dashboard Buy / Rent full text

Computer-assisted species recognition facilitates the analysis of relevant biological information in continuous audio recordings. In the present study, we assess the suitability of this approach for determining distinct life-cycle phases of the Southern Lapwing Vanellus chilensis lampronotus based on adult vocal activity. For this purpose we use passive 14-min and 30-min soundscape recordings (n = 33 201) collected in 24/7 mode between November 2012 and October 2013 in Brazil’s Pantanal wetlands. Time-stamped detections of V. chilensis call events (n = 62 292) were obtained with a species-specific sound recognizer. We demonstrate that the breeding season fell in a three-month period from mid-May to early August 2013, between the end of the flood cycle and the height of the dry season. Several phases of the lapwing’s life history were identified with presumed error margins of a few days: pre-breeding, territory establishment and egg-laying, incubation, hatching, parental defense of chicks, and post-breeding. Diurnal time budgets confirm high acoustic activity levels during midday hours in June and July, indicative of adults defending young. By August, activity patterns had reverted to nonbreeding mode, with peaks around dawn and dusk and low call frequency during midday heat. We assess the current technological limitations of the V. chilensis recognizer through a comprehensive performance assessment and scrutinize the usefulness of automated acoustic recognizers in studies on the distribution pattern, ecology, life history, and conservation status of sound-producing animal species.

show abstract

Helminth parasite diversity discloses age and sex differences in the foraging behaviour of southern lapwings (Vanellus chilensis )

Cited by 5 publications

References 53 publications

Nematode parasite diversity in birds: the role of host ecology, life history and migration

Nematode parasite diversity in birds: the role of host ecology, life history and migration

Necropsies disclose a low helminth parasite diversity in periurban howler monkeys

Automated Sound Recognition Provides Insights into the Behavioral Ecology of a Tropical Bird

Contact Info

Product

Resources

About