Corina J Logan's research while affiliated with Max Planck Institute for Evolutionary Anthropology and other places

... However, recent findings of new lineages [11][12][13] suggest that The first record of a PCR-based diagnosis of haemosporidian parasites in neotropical non-passerine birds was done by Durrant et al. [24] in 2006 (Figure 1). Given the higher detection rate of molecular methods over microscopy (e.g., [25]), the number of explored avian orders has increased (Figure 1). The first Leucocytozoon species reported in Apodiformes (Hummingbirds) came from Colombia, and was published in 2014 [20]. ...

... Our previous research found that behavioral flexibility does affect innovation ability on a multi-access box 104 (C. Logan et al., 2022), so here our second hypothesis tested whether individuals show contextual repeata-105 bility of flexibility by comparing performance on the color reversal learning task to the latency of solution 106 switching on two different multi-access boxes (Fig. 1). We chose solution switching because it requires 107 similar attention to changing reward contingencies, thus serving as a measure of flexibility, but in a different 108 context (e.g. the food is always visible, there is no color association learning required). ...

... Rapid range shifts can reveal plasticity in species' traits. Such considerable change in the grackles range has driven studies focused on its systematics and population structure [7][8][9][10][11][12][13][14], behavior [15][16][17][18][19], reproduction and physiology [20][21][22][23][24], and geographic distribution and expansion [4,[25][26][27][28][29][30]. However, only a few studies on this species have explored how it's gregarious behavior and geographic expansion might affect local parasite communities and their biogeographical patterns [31]. ...

... Such data was used to estimate the scaled mass index (SMI), which has become the primary method for quantifying energetic conditions within and among bird populations [43][44][45]. Then, grackles were either immediately released or temporarily brought into aviaries for behavioral testing (as part of other investigations [46][47][48][49]) and then released back to the wild. ...

... From 2018 to 2020, we conducted an investigation of the behavior of wild-caught grackles [22][23][24] using a number of different experimental procedures, many of which involved using a TOC. Several unexpected hurdles in training grackles to use the TOC were encountered, which could be due to species differences and/or because they were wild-caught rather than captive-bred. ...

... Their appeal lies with their remarkable flexibility, supporting a vast array of visual stimuli coupled with quantifiable motor responses (Seitz et al., 2021), both of which are necessary for designing tasks to investigate complex cognitive processes such as category learning (Broschard et al., 2021;Kim et al., 2018), spatial attention (Haddad et al., 2021), cognitive flexibility (Groman et al., 2012), and visual perception (Markham et al., 1996). Their use has transformed studies of neurological disorders by providing a sensitive assay of sensorimotor behaviors (Arulsamy et al., 2019;Copping et al., 2017;Leach and Crawley, 2018;Leach et al., 2016;Morton et al., 2006;Norris et al., 2019;Yang et al., 2015), revealing subtle phenotypes that were not detected by more conventional assays (Van den Broeck et al., 2019;Zeleznikow-Johnston et al., 2018). ...

... Such data was used to estimate the scaled mass index (SMI), which has become the primary method for quantifying energetic conditions within and among bird populations [43][44][45]. Then, grackles were either immediately released or temporarily brought into aviaries for behavioral testing (as part of other investigations [46][47][48][49]) and then released back to the wild. ...

... Based on the assumption that animals assess the intrinsic quality of an item, and form preferences accordingly (Brosnan and de Waal, 2004), perceptions of value are often studied using an 'exchange' paradigm, where subjects are trained to either exchange a value item (e.g., food or tool) for item(s) that differ in value or amount, or learn to associate a particular reward with a non-value item (token), which can subsequently be exchanged. These studies have provided exciting insights into a variety of topics, including economic decision-making, delayed gratification, barter, inequity aversion, and future planning in both primates (e.g., Chalmeau and Peignot, 1998;Brosnan and de Waal, 2004;Westergaard et al., 2004;Bräuer et al., 2009;Evans et al., 2012;Bourjade et al., 2014) and birds (e.g., Dufour et al., 2012;Wascher et al., 2012;Auersperg et al., 2013;Hillemann et al., 2014;Krasheninnikova et al., 2018), but the method usually requires extensive training of subjects, so is not normally suitable for studies with wild or temporarily captive animals (but see Blaisdell et al., 2020). Our new paradigm, on the other hand, does not rely on prior training and can potentially be applied not only to comparing different tool types, as we have done in the present study, but also to different variants of the same tool type, such as termite-fishing probes of different lengths, nut-cracking hammers of different sizes or weights, or tools made from different materials. ...

... However, co-evolution and substratedependence motivate blurring the structure-function divide in at least epistemological ways, such as when researchers use genetic, developmental, and morphological homologies to support inferences to homologous behavioral and cognitive characters (e.g. Jarvis 2019; De Waal and Ferrari 2010) or to counter claims of uniquely human cognitive abilities based on allegedly unique human brain structures (Herculano-Houzel 2012;Barton and Venditti 2013;Olkowicz et al. 2016;Logan et al. 2018). ...

... From these T A B L E 1 Summary of most of the species studied within the cited papers and related findings regarding their navigating capabilities (only most relevant citations are included to avoid cluttering) results, one may be led to hypothesize a broad positive correlation between brain size and cognition: Could bigger brains mean higher intelligence? Unfortunately (or luckily, from a selfishly anthropocentric point of view), this relationship and the studies related to it have been criticized, as they do not appear to reflect the reality of the evolutionary process (see Logan et al., 2018). This was only intended as an example to illustrate the complexity of the matter and the caveats that should be kept in mind when searching for a global answer to such complex issues. ...