Jessica A. Haines's research while affiliated with MacEwan University and other places

Publications (13)

Article
Full-text available
The pace-of-life syndrome hypothesis posits that personality traits (i.e. consistent individual differences in behaviour) are linked to life history and fitness. Specifically, fast-paced individuals are predicted to be proactive (i.e. active and aggressive) with an earlier age at first reproduction, a shorter life span and higher fecundity than slo...
Article
Sorex dispar (Long-tailed Shrew) is a rarely collected species typically found along streams and rocky sites with variable vegetation characteristics. Records of this species in New Brunswick have been sparse. Here we report on ecological site characteristics where 13 Long-tailed Shrews were captured over the course of 18,671 trap-nights conducted...
Preprint
Full-text available
The pace of life syndrome hypothesis posits that personality traits (i.e., consistent individual differences in behaviour) are linked to life history and fitness. Specifically, fast-paced individuals are predicted to be proactive (i.e., active and aggressive) with an earlier age at first reproduction, a shorter lifespan, and a higher fecundity than...
Article
Full-text available
Article impact statement: Resources should target leading edges of species’ climate envelopes rather than populations at the trailing edge of climate change. This article is protected by copyright. All rights reserved
Article
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Interactions between organisms are ubiquitous and have important consequences for phenotypes and fitness. Individuals can even influence those they never meet, if they have extended phenotypes that alter the environments others experience. North American red squirrels (Tamiasciurus hudsonicus) guard food hoards, an extended phenotype that typically...
Preprint
Full-text available
Interactions between organisms are ubiquitous and have important consequences for phenotypes and fitness. Individuals can even influence those they never meet, if they have extended phenotypes which mean the environments others experience are altered. North American red squirrels (Tamiasciurus hudsonicus) guard food hoards, an extended phenotype th...
Article
Full-text available
In recent years, it has been argued that the effect of predator fear exacts a greater demographic toll on prey populations than the direct killing of prey. However, efforts to quantify the effects of fear have primarily relied on experiments that replace predators with predator cues. Interpretation of these experiments must consider two important c...
Article
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https://deepblue.lib.umich.edu/bitstream/2027.42/143645/1/ecy2158-sup-0002-AppendixS2.pdf
Article
Full-text available
The age trajectory of reproductive performance of many iteroparous species features an early - life increase in performance followed by a late - life senescent decline. The largest contribution of lifetime reproductive success is therefore gained at the age at which reproductive performance peaks. Using long term data on North American red squirrel...
Article
Full-text available
Animals play an important role in the seed dispersal of many plants. It is increasingly recognized , however, that the actions of a single disperser rarely determine a seed's fate and final location; rather, multiple abiotic or animal dispersal vectors are involved. Some carnivores act as secondary dis-persers by preying on primary seed dispersers...

Citations

... Altering external conditions could differentially affect the fitness of individuals based on their personality or experience level (Dammhahn & Almeling, 2012). For example, in North American red squirrels, Tamiasciurus hudsonicus, the associations between different personality traits and lifetime offspring production for males depends on whether or not males experience a year with a strong resource pulse (Haines et al., 2020). Recognizing behavioural changes over time and contexts will help us make sense of the temporal patterns of consistency versus flexibility. ...
... Currently prioritisation is usually based on threat level or extinction risk (Wilson et al., 2011), net benefits to biodiversity , climate factors (Gilbert et al., 2020) or cost-effectiveness (Martin et al., 2018;Carwardine et al., 2019), often on the basis of expert opinion (Hagerman et al., 2010;Runge et al., 2011;Hagerman and Satterfield, 2013;Carwardine et al., 2019). Alternatively, priorities emerge from government without a clear explanation (e.g. ...
... The biotic interactions are strong factors affecting the fitness of interacting individuals, even when interactions are delayed in time or do not imply direct contact between individuals. Such interactions can be found in both plants through plant-soil feedbacks (Putten et al., 2016) and in animals (Fisher et al., 2019;Pfennig & Pfennig, 2020). For instance, insect herbivores exploiting the same plant can compete for food, even when interactions among individuals are separated in time (Kaplan & Denno, 2007). ...
... Trussell 2011). However, recent work has noted that lab-based findings may not translate to changes under field conditions (Kloskowski 2018;Peers et al. 2018;Gravem & Morgan 2019;Sheriff et al. 2020) and voiced concerns regarding the lack of studies of NCE in natural settings focused on fitness and population growth as opposed to lab studies (Zanette & Clinchy 2019;Sheriff et al. 2020). Similarly, we found a significant difference between fitness impacts measured in lab and field settings following lethal exposure to predators. ...
... By contrast, few to no cones are available in non-mast years 33,35 . In anticipation of an upcoming spruce mast, squirrels exhibit an extended breeding season and concomitant behavioral changes: territoriality breaks down and conspecific interactions increase due to increased breeding frequency and infanticidal behavior 36,37 . An upcoming spruce mast may thus exert direct positive effects on gut microbiome diversity via more frequent social interactions, which leads to greater horizontal microbial transmission 29 . ...
... Generally, copepods are fast growing organisms and their reproductive output is often considered as an estimator of the quality of their environment. Environmental fluctuations such as in a pulsed resource system are otherwise known to have pronounced fitness consequences 16 . But no deep experimental study was devoted to test the ecological and evolutionary significance of the trade-off occurrence between clutch size and egg size in copepods as yet. ...
... In this chapter, we focus on endozoochorous seed dispersal by mesocarnivores, although they may also be potential vectors for epizoochorous seed dispersal (Hovstad et al., 2009). Lastly, we do not deal with secondary seed dispersal, and, more specifically, diploendozoochory, a mechanism which has recently been reviewed for carnivorous predators (including birds of prey), and its potential ecological significance highlighted (Hämäläinen et al., 2017). ...