Responding to inflammatory challenges is less costly for a successful avian invader, the house sparrow (Passer domesticus), than its less-invasive congener

@article{Lee2005RespondingTI,
  title={Responding to inflammatory challenges is less costly for a successful avian invader, the house sparrow (Passer domesticus), than its less-invasive congener},
  author={Kelly A. Lee and Lynn B. Martin and Martin Wikelski},
  journal={Oecologia},
  year={2005},
  volume={145},
  pages={243-250}
}
When introduced into new regions, invading organisms leave many native pathogens behind and also encounter evolutionarily novel disease threats. In the presence of predominantly novel pathogens that have not co-evolved to avoid inducing a strong host immune response, costly and potentially dangerous defenses such as the systemic inflammatory response could become more harmful than protective to the host. We therefore hypothesized that introduced populations exhibiting dampened inflammatory… 
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127 Citations

Immune Response Varies with Rate of Dispersal in Invasive Cane Toads (Rhinella marina)

Long-distance movement in cane toads is associated with a dampened response in some systems and enhanced response in another, suggesting that sustained activity is accompanied by trade-offs among immune components rather than an overall down or up-regulation.

Reduced inflammation in expanding populations of a neotropical bird species

The hypothesis that individuals from newly established populations have evolved mechanisms to dampen the inflammatory response is supported and is in accordance with one prediction of the refined EICA hypothesis, proposed to understand biological invasions.

Variation in inflammation as a correlate of range expansion in Kenyan house sparrows

The goal of the present study was to determine whether damped inflammation generally facilitates invasion by comparing inflammatory markers between house sparrows invading Kenya and a native congener, and predicted that if inflammation mediated invasion success, Kenyan house sp Sparrows would mount weaker inflammatory responses than the native species.

Acute-phase responses vary with pathogen identity in house sparrows (Passer domesticus).

Despite using what are moderate-to-high pyrogen doses for other vertebrates, only house sparrows challenged with LPS showed measurable APRs andFebrile, behavioral, and physiological responses to fungal and viral mimetics had minimal effects.

Surveillance for microbes and range expansion in house sparrows

Testing the hypothesis that variation in the regulation of inflammation contributed to the spread of house sparrows across Kenya, one of the world's most recent invasions of this species, suggests changes in microbe surveillance might have been important to theHouse sparrow invasion of Kenya.

Effects of invasion history on physiological responses to immune system activation in invasive Australian cane toads

This work injected wild-caught toads from both invasion front populations with the experimental antigen lipopolysaccharide (LPS, to mimic bacterial infection) and measured whole-blood phagocytosis, finding no difference in responses between populations.

Stress and immunity at the invasion front: a comparison across cane toad (Rhinella marina) populations

Traits related to energy stores and immunity in wild cane toads are measured across a 750-km transect from their invasion front in tropical Australia, back into sites colonized 21 years earlier, showing that a biological invasion imposes strong pressures on physiological systems of the invaders.

Population differences in fever and sickness behaviors in a wild passerine: a role for cytokines

The results show that immunological differences between these populations cannot be explained by immediate environment alone and may reflect genetic, maternal or early-life effects, and suggest that cytokines play a role in shaping immunological variation among wild vertebrates.

Covariation in stress and immune gene expression in a range expanding bird.

Mounting a specific immune response increases energy expenditure of the subterranean rodent Ctenomys talarum (tuco-tuco): implications for intraspecific and interspecific variation in immunological traits

Whether an experimental induction of the immune system with a non-pathogenic antigen elevates the energetic expenditure of a subterranean rodent: Ctenomys talarum (tuco-tucos) is evaluated and new insight is added into the role of other factors such as basal metabolic rate or degree of parasite exposure besides ‘pace of life’ in modulating the interspecific immunological variation observed in natural populations of mammals.
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