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1. Host traits associated with species roles in parasite sharing networks

Author:
Dallas, Tad A.; Han, Barbara A.; Nunn, Charles L.; Park, Andrew W.; Stephens, Patrick R.; Drake, John M.
Source:
Oikos 2019 v.128 no.1 pp. 23-32
ISSN:
0030-1299
Subject:
parasitism,   etc   ; Primates; biogeography; carnivores; genetic distance; home range; hosts; parasites; phylogeny; population density; prediction; ungulates;     Show all 12 Subjects
Abstract:
... The community of host species that a parasite infects is often explained by functional traits and phylogeny, predicting that closely related hosts or those with particular traits share more parasites with other hosts. Previous research has examined parasite community similarity by regressing pairwise parasite community dissimilarity between two host species against host phylogenetic distance. Howe ...
DOI:
10.1111/oik.05602

2. Nutrient availability affects the prevalence of a microsporidian parasite

Author:
Narr, Charlotte F.; Ebert, Dieter; Bastille‐Rousseau, Guillaume; Frost, Paul C.
Source:
The journal of animal ecology 2019 v.88 no.4 pp. 579-590
ISSN:
0021-8790
Subject:
parasitism,   etc   ; Daphnia magna; Microsporidia; coevolution; diet; host-parasite relationships; hosts; islands; nutrient availability; nutrients; parasites; plankton; population density; spores; Baltic Sea;     Show all 15 Subjects
Abstract:
... Defining the relationship between nutrients and parasitism is complicated by shifts in host physiology and population density, which can both mediate the effects of host diet on parasites and vice versa. We examined the relationship between nutrient availability and an abundant parasite capable of both horizontal and vertical transmission (Hamiltosporidium tvaerminnensis) of a planktonic crustacea ...
DOI:
10.1111/1365-2656.12945

3. Combined effects of salinity and infectious disease on Daphnia dentifera at multiple scales

Author:
Merrick, Abigail M.; Searle, Catherine L.
Source:
Freshwater biology 2019 v.64 no.3 pp. 601-607
ISSN:
0046-5070
Subject:
parasitism,   etc   ; Daphnia; Metschnikowia; anthropogenic activities; freshwater; freshwater ecosystems; fungi; genotype; host-parasite relationships; hosts; infectious diseases; parasites; population density; salinity; sodium chloride; zooplankton;     Show all 16 Subjects
Abstract:
... Temperate freshwater ecosystems are currently being salinised through anthropogenic activities. These increases in freshwater salinity can impact individuals, populations, and species interactions. We studied the effects of salinity on freshwater host–parasite interactions at multiple scales using the zooplankton host, Daphnia dentifera, and a fungal parasite (Metschnikowia bicuspidata). We conduc ...
DOI:
10.1111/fwb.13245

4. High resources and infectious disease facilitate invasion by a freshwater crustacean

Author:
Searle, Catherine L.; Hochstedler, Baylie R.; Merrick, Abigail M.; Ilmain, Juliana K.; Wigren, Maggie A.
Source:
Oecologia 2018 v.188 no.2 pp. 571-581
ISSN:
0029-8549
Subject:
parasitism,   etc   ; algae; disease outbreaks; freshwater; freshwater crustaceans; infectious diseases; invasive species; life history; parasites; population density; progeny; zooplankton;     Show all 12 Subjects
Abstract:
... It is well-established that both resources and infectious disease can influence species invasions, but little is known regarding interactive effects of these two factors. We performed a series of experiments to understand how resources and parasites can jointly affect the ability of a freshwater invasive zooplankton to establish in a population of a native zooplankton. In a life history trial, we ...
DOI:
10.1007/s00442-018-4237-9

5. Decline in territory size and fecundity as a response to carrying capacity in an endangered songbird

Author:
Hartmann, Stefanie A.; Oppel, Steffen; Segelbacher, Gernot; Juiña, Mery E.; Schaefer, H. Martin
Source:
Oecologia 2017 v.183 no.2 pp. 597-606
ISSN:
0029-8549
Subject:
brood parasitism,   etc   ; adults; breeding; carrying capacity; chicks; fecundity; habitats; life history; models; parasites; population density; population growth; population size; prediction; reproductive performance; songbirds; territoriality;     Show all 17 Subjects
Abstract:
... Density-dependent processes are fundamental mechanisms for the regulation of populations. Ecological theories differ in their predictions on whether increasing population density leads to individual adjustments of survival and reproductive output or to dominance and monopolization of resources. Here, we use a natural experiment to examine which factors limit population growth in the only remaining ...
DOI:
10.1007/s00442-016-3763-6

6. Warming accelerates termination of a phytoplankton spring bloom by fungal parasites

Author:
Frenken, Thijs; Velthuis, Mandy; Senerpont Domis, Lisette N.; Stephan, Susanne; Aben, Ralf; Kosten, Sarian; Donk, Ellen; Van de Waal, Dedmer B.
Source:
Global change biology 2016 v.22 no.1 pp. 299-309
ISSN:
1354-1013
Subject:
parasitism,   etc   ; Rotifera; Synedra; carbon; ecosystems; freshwater; fungi; global warming; grazing; infectious diseases; nutrients; parasites; phosphorus; phytoplankton; population density; population dynamics; spring; stoichiometry; temperature; zooplankton; zoospores;     Show all 21 Subjects
Abstract:
... Climate change is expected to favour infectious diseases across ecosystems worldwide. In freshwater and marine environments, parasites play a crucial role in controlling plankton population dynamics. Infection of phytoplankton populations will cause a transfer of carbon and nutrients into parasites, which may change the type of food available for higher trophic levels. Some phytoplankton species a ...
DOI:
10.1111/gcb.13095

7. Host density drives macroparasite abundance across populations of a critically endangered megaherbivore

Author:
Stringer, A. P.; Linklater, W. L.
Source:
Oecologia 2015 v.179 no.1 pp. 201-207
ISSN:
0029-8549
Subject:
parasitism,   etc   ; Diceros bicornis; disease control; epidemiology; host-parasite relationships; models; parasites; population density; population size; South Africa;     Show all 10 Subjects
Abstract:
... What determines the abundance of parasites is a central question within epidemiology. Epidemiological models predict that density-dependent transmission has a principal influence on parasite abundance. However, this mechanism is seldom tested in macroparasites, perhaps because multiple, comparable populations of the same host-parasite relationship are rare. We test the influence of a range of fact ...
DOI:
10.1007/s00442-015-3319-1

8. Spread of an introduced parasite across the Hawaiian archipelago independent of its introduced host

Author:
Gagne, Roderick B.; Hogan, J. Derek; Pracheil, Brenda M.; McIntyre, Peter B.; Hain, Ernie F.; Gilliam, James F.; Blum, Michael J.
Source:
Freshwater biology 2015 v.60 no.2 pp. 311-322
ISSN:
0046-5070
Subject:
parasitism,   etc   ; Awaous; Camallanus; environmental factors; genetic variation; hosts; humans; indigenous species; introduced species; islands; land use; parasites; population density; water quality; watersheds; Hawaii;     Show all 16 Subjects
Abstract:
... Co‐introductions of non‐native parasites with non‐native hosts can be a major driver of disease emergence in native species, but the conditions that promote the establishment and spread of non‐native parasites remain poorly understood. Here, we characterise the infection of a native host species by a non‐native parasite relative to the distribution and density of the original non‐native host speci ...
DOI:
10.1111/fwb.12491

9. Centrality in primate–parasite networks reveals the potential for the transmission of emerging infectious diseases to humans

Author:
Gómez, José María; Nunn, Charles L.; Verdú, Miguel
Source:
Proceedings of the National Academy of Sciences of the United States of America 2013 v.110 no.19 pp. 7738-7741
ISSN:
0027-8424
Subject:
parasitism,   etc   ; Primates; emerging diseases; hosts; humans; monitoring; parasites; phylogeny; population density;     Show all 9 Subjects
Abstract:
... Most emerging infectious diseases (EIDs) in humans have arisen from animals. Identifying high-risk hosts is therefore vital for the control and surveillance of these diseases. Viewing hosts as connected through the parasites they share, we use network tools to investigate predictors of parasitism and sources of future EIDs. We generated host–parasite networks that link hosts when they share a para ...
DOI:
10.1073/pnas.1220716110
PubMed:
23610389
PubMed Central:
PMC3651426

10. Alternative states and population crashes in a resource‐susceptible‐infected model for planktonic parasites and hosts

Author:
GERLA, DAAN J.; GSELL, ALENA S.; KOOI, BOB W.; IBELINGS, BAS W.; VAN DONK, ELLEN; MOOIJ, WOLF M.
Source:
Freshwater biology 2013 v.58 no.3 pp. 538-551
ISSN:
0046-5070
Subject:
parasitism,   etc   ; extinction; food webs; hosts; models; nutrient availability; nutrient content; nutrients; parasites; plankton; population density; reproduction; seafoods; viruses;     Show all 14 Subjects
Abstract:
... 1. Despite the strong impact parasites can have, only few models of phytoplankton ecology or aquatic food webs have specifically included parasitism. 2. Here, we provide a susceptible‐infected model for a diatom‐chytrid host–parasite system that explicitly includes nutrients, infected and uninfected hosts, reproduction of the parasite on the hosts and free‐living infective stages. 3. A distinguish ...
DOI:
10.1111/fwb.12010

11. Escape from parasitism by the invasive alien ladybird, Harmonia axyridis

Author:
Comont, Richard F.; Purse, Bethan V.; Phillips, William; Kunin, William E.; Hanson, Matthew; Lewis, Owen T.; Harrington, Richard; Shortall, Christopher R.; Rondoni, Gabriele; Roy, Helen E.; Leather, Simon R.; Sait, Steven
Source:
Insect conservation and diversity 2014 v.7 no.4 pp. 334-342
ISSN:
1752-458X
Subject:
parasitism,   etc   ; Coccinella septempunctata; Dinocampus; Harmonia axyridis; adults; indigenous species; introduced species; invasive species; mortality; natural enemies; parasites; pathogens; population density; predators; prediction; pupae; England;     Show all 17 Subjects
Abstract:
... Alien species are often reported to perform better than functionally similar species native to the invaded range, resulting in high population densities, and a tendency to become invasive. The enemy release hypothesis (ERH) explains the success of invasive alien species (IAS) as a consequence of reduced mortality from natural enemies (predators, parasites and pathogens) compared with native specie ...
DOI:
10.1111/icad.12060

12. Parasite infection and host dynamics in a naturally fluctuating rodent population

Author:
Winternitz, J.C.; Yabsley, M.J.; Altizer, S.M.
Source:
Canadian journal of zoology 2012 v.90 no.9 pp. 1149-1160
ISSN:
1480-3283
Subject:
parasitism,   etc   ; Cestoda; Eimeria; Microtus; case studies; correlation; gastrointestinal system; monitoring; parasites; population density; population dynamics; trapping; voles; Colorado;     Show all 14 Subjects
Abstract:
... Parasites can both influence and be affected by host population dynamics, and a growing number of case studies support a role for parasites in causing or amplifying host population cycles. In this study, we examined individual and population predictors of gastrointestinal parasitism on wild cyclic montane voles (Microtus montanus (Peale, 1848)) to determine if evidence was consistent with theory i ...
DOI:
10.1139/z2012-083

13. Population density and phenotypic attributes influence the level of nematode parasitism in roe deer

Author:
Body, Guillaume; Ferté, Hubert; Gaillard, Jean-Michel; Delorme, Daniel; Klein, François; Gilot-Fromont, Emmanuelle
Source:
Oecologia 2011 v.167 no.3 pp. 635-646
ISSN:
0029-8549
Subject:
parasitism,   etc   ; Capreolus capreolus; Strongylidae; Trichuris; adults; eggs; environmental factors; fawns; fecal egg count; females; hosts; males; parasites; population density; population dynamics; social structure; summer; weather; France;     Show all 19 Subjects
Abstract:
... The impact of parasites on population dynamics is well documented, but less is known on how host population density affects parasite spread. This relationship is difficult to assess because of confounding effects of social structure, population density, and environmental conditions that lead to biased among-population comparisons. Here, we analyzed the infestation by two groups of nematodes (gastr ...
DOI:
10.1007/s00442-011-2018-9
PubMed:
21607671

14. Demographic crash associated with high parasite load in an experimental roe deer (Capreolus capreolus) population

Author:
Maublanc, Marie-Line; Bideau, Eric; Picot, Denis; Rames, Jean-Luc; Dubois, Michel; Ferté, Hubert; Gerard, Jean-François
Source:
European journal of wildlife research 2009 v.55 no.6 pp. 621-625
ISSN:
1612-4642
Subject:
parasitism,   etc   ; Capreolus capreolus; adults; deer; emaciation; fawns; females; males; mortality; parasite load; parasites; population density; vegetation cover;     Show all 13 Subjects
Abstract:
... In March 2002, ten roe deer (Capreolus capreolus) were released in a partly wooded 14.2-ha enclosure to investigate the effect of high population density on vegetation cover and demographic parameters. However, in mid 2003, five animals died after rapid emaciation. Two other deer were killed to carry out further post-mortem examination. In addition to a general loss of body mass and injuries in ma ...
DOI:
10.1007/s10344-009-0298-8

15. Host density predicts presence of cuckoo parasitism in reed warblers

Author:
Stokke, Bård G.; Hafstad, Inge; Rudolfsen, Geir; Bargain, Bruno; Beier, Josef; Bigas Campàs, David; Dyrcz, Andrzej; Honza, Marcel; Leisler, Bernd; Pap, Péter L.; PatapaviČius, RiČardas; Procházka, Petr; Schulze-Hagen, Karl; Thomas, Rob; Moksnes, Arne; Pape Møller, Anders; Røskaft, Eivin; Soler, Manuel
Source:
Oikos 2007 v.116 no.6 pp. 913-922
ISSN:
0030-1299
Subject:
parasitism,   etc   ; Cuculidae; birds; breeding season; habitats; hosts; latitude; nests; parasites; population density; predation; prediction; Europe;     Show all 13 Subjects
Abstract:
... In some hosts of avian brood parasites, several populations apparently escape parasitism, while others are parasitized. Many migratory specialist brood parasites like common cuckoos, Cuculus canorus, experience a short breeding season, and in order to maintain local parasite populations host densities should be sufficiently high to allow efficient nest search. However, no studies have investigated ...
DOI:
10.1111/j.2007.0030-1299.15832.x

16. Factors associated with the geographic distribution of leucocytozoa parasitizing nestling eagle owls (Bubo bubo): a local spatial-scale analysis

Author:
Ortego, Joaquín; Cordero, Pedro J.
Source:
Conservation genetics 2010 v.11 no.4 pp. 1479-1487
ISSN:
1566-0621
Subject:
parasitism,   etc   ; Bubo bubo; Leucocytozoon; blood; disease outbreaks; geographical distribution; geographical variation; habitats; larval development; nests; parasites; polymerase chain reaction; population density;     Show all 13 Subjects
Abstract:
... Knowledge of the factors influencing the patterns and distribution of parasite infections and disease outbreaks is a major question in disease ecology and conservation research. In this study, we use a highly efficient PCR approach to detect blood parasites and investigate the factors influencing geographical variation in the distribution of leucocytozoids parasitizing nestling eagle owls (Bubo bu ...
DOI:
10.1007/s10592-009-9978-x

17. Larval amphibian growth and development under varying density: are parasitized individuals poor competitors

Author:
Koprivnikar, J.; Forbes, M. R.; Baker, R. L.
Source:
Oecologia 2008 v.155 no.3 pp. 641-649
ISSN:
0029-8549
Subject:
parasitism,   etc   ; Echinostoma trivolvis; Rana; frogs; hosts; intraspecific competition; larval development; parasites; population density; population dynamics; resource allocation; stocking rate; tadpoles;     Show all 13 Subjects
Abstract:
... Population density and infection with parasites often are important factors affecting the growth and development of individuals. How these factors co-occur and interact in nature should have important consequences for individual fitness and higher-order phenomena, such as population dynamics of hosts and their interactions with other species. However, few studies have examined the joint effects of ...
DOI:
10.1007/s00442-007-0937-2
PubMed:
18157552

18. Parasitism and a shortage of refuges jointly mediate the strength of density dependence in a reef fish

Author:
Forrester, Graham E.; Finley, Rachel J.
Source:
Ecology 2006 v.87 no.5 pp. 1110-1115
ISSN:
0012-9658
Subject:
parasitism,   etc   ; coral reefs; marine fish; Gobiidae; population density; refuge habitats; population growth; mortality; Copepoda; parasites; gills;     Show all 11 Subjects
Abstract:
... Various predator–prey, host–pathogen, and competitive interactions can combine to cause density dependence in population growth. Despite this possibility, most empirical tests for density‐dependent interactions have focused on single mechanisms. Here we tested the hypothesis that two mechanisms of density dependence, parasitism and a shortage of refuges, jointly influence the strength of density‐d ...
DOI:
10.1890/0012-9658(2006)87[1110:PAASOR]2.0.CO;2
PubMed:
16761588

19. Parasitic anemone infects the invasive ctenophore Mnemiopsis leidyi in the North East Atlantic

Author:
Selander, Erik; Møller, Lene Friis; Sundberg, Per; Tiselius, Peter
Source:
Biological invasions 2010 v.12 no.5 pp. 1003-1009
ISSN:
1387-3547
Subject:
parasitism,   etc   ; aquatic invertebrates; marine environment; invasive species; Anthozoa; ecological invasion; biological control; biological control agents; larvae; parasites; animal parasites and pests; ribosomal RNA; nucleotide sequences; population density; population dynamics; temporal variation; Atlantic Ocean;     Show all 17 Subjects
Abstract:
... We report of the first finding of parasitic sea anemone larvae infecting the invasive ctenophore Mnemiopsis leidyi in the North East Atlantic. Parasitic anemone larvae are common in the native habitat of Mnemiopsis, but have not previously been reported from any of the locations where Mnemiopsis has been introduced. General morphology and 18S rRNA sequences support the identification of the larvae ...
DOI:
10.1007/s10530-009-9552-y

20. Temporal response of parasitoids to the density of the leafroller Eudemis gyrotis (Lepidoptera: Tortricidae) on bayberry Myrica rubra (Myricaceae)

Author:
Sugiura, S.; Osawa, N.
Source:
Environmental entomology 2002 v.31 no.6 pp. 988-994
ISSN:
0046-225X
Subject:
parasitism,   etc   ; Tortricidae; Hymenoptera; parasitoids; host-parasite relationships; population density; seasonal variation; developmental stages; parasites; Japan;     Show all 10 Subjects
Abstract:
... To elucidate the temporal response of parasitoids to their host density, we investigated the temporal relationship between the density of the leafroller moth, Eudemis gyrotis (Lepidoptera, Tortricidae), and larval and pupal parasitism in the field. E. gyrotis had overlapping-generations, and the density of larvae and pupae of E. gyrotis varied seasonally. Analysis of the temporal relationship betw ...
DOI:
10.1603/0046-225X-31.6.988