Spatial and temporal variation of compositional, functional, and phylogenetic diversity in ectoparasite infracommunities harboured by small mammals

Krasnov, Boris R.; Vinarski, Maxim V.; Korallo‐Vinarskaya, Natalia P.; Shenbrot, Georgy I.; Khokhlova, Irina S.

doi:10.1017/s0031182021000299

Cited by 2 publications

(1 citation statement)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The occurrence and burden of flea, mite and tick species have been found to be associated with the parasitism of other ectoparasites as a result of agonistic or antagonistic interactions within their host (e.g., Krasnov et al 2010;Colombo et al 2015a, b;Krasnov et al 2021). In this regard, environmental factors may not only have a direct effect on parasite species dynamics but also an indirect effect through interspecific interactions.…”

Section: Discussionmentioning

confidence: 99%

Ecological factors shaping the ectoparasite community assembly of the Azara’s Grass Mouse,Akodon azarae(Rodentia: Cricetidae)

Colombo

Lareschi

Monje

et al. 2023

Preprint

View full text Add to dashboard Cite

Parasites are integral members of the global biodiversity. They are useful indicators of environmental stress, food web structure and diversity. Ectoparasites have the potential to transmit vector-borne diseases of public health and veterinary importance and to play an important role in the regulation and evolution of host populations. The interlinkages between hosts, parasites and the environment are complex and challenging to study, leading to controversial results. Most previous studies have been focused on one or two parasite groups, while host are often co-infected by different taxa. The present study aims to assess the influence of environmental and host traits on the entire ectoparasite community composition of the rodent Akodon azarae. A total of 278 rodents were examined and mites (Mesostigmata), lice (Phthiraptera), ticks (Ixodida) and fleas (Siphonaptera) were determined. A Multi Correspondence Analyses was performed in order to analyse interactions within the ectoparasite community and the influence of environmental and host variables on this assembly. We found that environmental variables have a stronger influence on the composition of the ectoparasite community of A. azarae than the host variables analysed. Minimum temperature was the most influential variable among the studied. In addition, we found evidence of agonistic and antagonistic interactions between ticks and mites, lice and fleas. The present study supports the hypothesis that minimum temperature play a major role in the dynamics that shape the ectoparasite community of A. azarae, probably through both direct and indirect processes. This finding becomes particularly relevant in a climate change scenario.

show abstract

Section: Discussionmentioning

confidence: 99%

Ecological factors shaping the ectoparasite community assembly of the Azara’s Grass Mouse,Akodon azarae(Rodentia: Cricetidae)

Colombo

Lareschi

Monje

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Variation of functional diversity structure measured as combined species dominance, functional diversity, and functional redundancy in two taxa of ectoparasitic arthropods at two spatial scales: host-associated, ecological, and geographic effects

Krasnov,

Stanko,

Vinarski

et al. 2024

Parasitology

View full text Add to dashboard Cite

The functional diversity structure of a community can be represented as a combination of three additive components (species dominance D, functional redundancy R, and functional diversity Q) (DRQ approach in which different facets of functional differences between species are considered simultaneously). We applied this concept to assemblages of fleas and gamasid mites parasitic on small mammals at continental (across regions of the Palearctic) and regional (across sampling sites in Slovakia) scales and asked: What are the relative effects of host species, biome/habitat type, and geographic locality on the DRQ composition of a parasite assemblage? At the continental scale, regions were partitioned according to predominant biome or geographic position in a continental section. At the regional scale, sampling sites were partitioned according to habitat type or geographic locality. We tested for differences in the functional diversity structure (measured as the DRQ composition) of an ectoparasite assemblage (a) within a host species between biomes/habitat types or continental sections/localities and (b) between host species within a biome/habitat type or a continental section/locality. At both scales, the functional diversity structure of both flea and mite assemblages differed mainly between host species within a biome/habitat or geographic regions/locations, whereas differences in the DRQ composition between biomes/habitats or geographic regions/locations were only detected in a few host species. We compare our results with the results of earlier studies and conclude that the DRQ approach has an advantage over a single diversity metric and allows a better understanding of spatial variation in different facets of ectoparasite diversity.

show abstract

Spatial and temporal variation of compositional, functional, and phylogenetic diversity in ectoparasite infracommunities harboured by small mammals

Abstract: Abstract

Cited by 2 publications

References 74 publications

Ecological factors shaping the ectoparasite community assembly of the Azara’s Grass Mouse,Akodon azarae(Rodentia: Cricetidae)

Ecological factors shaping the ectoparasite community assembly of the Azara’s Grass Mouse,Akodon azarae(Rodentia: Cricetidae)

Variation of functional diversity structure measured as combined species dominance, functional diversity, and functional redundancy in two taxa of ectoparasitic arthropods at two spatial scales: host-associated, ecological, and geographic effects

Contact Info

Product

Resources

About