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Grissom NM, Glewwe N, Chen C, Giglio E. Sex mechanisms as nonbinary influences on cognitive diversity. Horm Behav 2024; 162:105544. [PMID: 38643533 PMCID: PMC11338071 DOI: 10.1016/j.yhbeh.2024.105544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/23/2024]
Abstract
Essentially all neuropsychiatric diagnoses show some degree of sex and/or gender differences in their etiology, diagnosis, or prognosis. As a result, the roles of sex-related variables in behavior and cognition are of strong interest to many, with several lines of research showing effects on executive functions and value-based decision making in particular. These findings are often framed within a sex binary, with behavior of females described as less optimal than male "defaults"-- a framing that pits males and females against each other and deemphasizes the enormous overlap in fundamental neural mechanisms across sexes. Here, we propose an alternative framework in which sex-related factors encompass just one subset of many sources of valuable diversity in cognition. First, we review literature establishing multidimensional, nonbinary impacts of factors related to sex chromosomes and endocrine mechanisms on cognition, focusing on value- based decision-making tasks. Next, we present two suggestions for nonbinary interpretations and analyses of sex-related data that can be implemented by behavioral neuroscientists without devoting laboratory resources to delving into mechanisms underlying sex differences. We recommend (1) shifting interpretations of behavior away from performance metrics and towards strategy assessments to avoid the fallacy that the performance of one sex is worse than another; and (2) asking how much variance sex explains in measures and whether any differences are mosaic rather than binary, to avoid assuming that sex differences in separate measures are inextricably correlated. Nonbinary frameworks in research on cognition will allow neuroscience to represent the full spectrum of brains and behaviors.
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Affiliation(s)
- Nicola M Grissom
- Department of Psychology, University of Minnesota, United States of America.
| | - Nic Glewwe
- Department of Psychology, University of Minnesota, United States of America
| | - Cathy Chen
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, United States of America
| | - Erin Giglio
- Department of Psychology, University of Minnesota, United States of America
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Lamont MM, Slone D, Reid JP, Butler SM, Alday J. Deep vs shallow: GPS tags reveal a dichotomy in movement patterns of loggerhead turtles foraging in a coastal bay. MOVEMENT ECOLOGY 2024; 12:40. [PMID: 38816732 PMCID: PMC11140867 DOI: 10.1186/s40462-024-00480-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Individual variation in movement strategies of foraging loggerhead turtles have been documented on the scale of tens to hundreds of kilometers within single ocean basins. Use of different strategies among individuals may reflect variations in resources, predation pressure or competition. It is less common for individual turtles to use different foraging strategies on the scale of kilometers within a single coastal bay. We used GPS tags capable of back-filling fine-scale locations to document movement patterns of loggerhead turtles in a coastal bay in Northwest Florida, U.S.A. METHODS Iridium-linked GPS tags were deployed on loggerhead turtles at a neritic foraging site in Northwest Florida. After filtering telemetry data, point locations were transformed to movement lines and then merged with the original point file to define travel paths and assess travel speed. Home ranges were determined using kernel density function. Diurnal behavioral shifts were examined by examining turtle movements compared to solar time. RESULTS Of the 11 turtles tagged, three tracked turtles remained in deep (~ 6 m) water for almost the entire tracking period, while all other turtles undertook movements from deep water locations, located along edges and channels, to shallow (~ 1-2 m) shoals at regular intervals and primarily at night. Three individuals made short-term movements into the Gulf of Mexico when water temperatures dropped, and movement speeds in the Gulf were greater than those in the bay. Turtles exhibited a novel behavior we termed drifting. CONCLUSIONS This study highlighted the value provided to fine-scale movement studies for species such as sea turtles that surface infrequently by the ability of these GPS tags to store and re-upload data. Future use of these tags at other loggerhead foraging sites, and concurrent with diving and foraging data, would provide a powerful tool to better understand fine-scale movement patterns of sea turtles.
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Affiliation(s)
- Margaret M Lamont
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, USA.
| | - Daniel Slone
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, USA
| | - James P Reid
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, USA
| | - Susan M Butler
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, USA
| | - Joseph Alday
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, USA
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Badger JJ, Bowen WD, den Heyer CE, Breed GA. Individual Quality Drives Life History Variation in a Long-Lived Marine Predator. Am Nat 2023; 202:351-367. [PMID: 37606942 DOI: 10.1086/725451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
AbstractIndividual quality and environmental conditions may mask or interact with energetic trade-offs in life history evolution. Deconstructing these sources of variation is especially difficult in long-lived species that are rarely observed on timescales long enough to disentangle these effects. Here, we investigated relative support for variation in female quality and costs of reproduction as factors shaping differences in life history trajectories using a 32-year dataset of repeated reproductive measurements from 273 marked, known-age female gray seals (Halichoerus grypus). We defined individual reproductive investment using two traits, reproductive frequency (a female's probability of breeding) and provisioning performance (offspring weaning mass). Fitted hierarchical Bayesian models identified individual investment relative to conspecifics (over a female's entire life and in three age classes) and subsequently estimated how these investment metrics and the Atlantic Multidecadal Oscillation are associated with longevity. Individual differences (i.e., quality) contributed a large portion of the variance in reproductive traits. Females that consistently invest well in their offspring relative to other females survive longer. The best-supported model estimated survival as a function of age class-specific provisioning performance, where late-life performance was particularly variable and had the greatest impact on survival, possibly indicating individual variation in senescence. There was no evidence to support a trade-off in reproductive performance and survival at the individual level. Overall, these results suggest that in gray seals, individual quality is a stronger driver in life history variation than individual strategies resulting from energetic trade-offs.
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Stewart C, Lang SLC, Iverson S, Bowen WD. Measuring repeatability of compositional diet estimates: An example using quantitative fatty acid signature analysis. Ecol Evol 2022; 12:e9428. [PMID: 36311408 PMCID: PMC9608821 DOI: 10.1002/ece3.9428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 11/12/2022] Open
Abstract
By measuring the temporal consistency, or repeatability, in the diets of predators, we can gain a better understanding of the degree of individual specialization in resource utilization and implications for predator-prey interactions, population dynamics, and food web structure. To measure repeatability, we require repeated diet estimates of individuals over time, such as those derived from quantitative fatty acid signature analysis (QFASA), a popular diet estimation technique. However, diet estimates are often lengthy compositional vectors with many zeros, as some prey will not be consumed by all individuals, precluding the use of previously proposed measures of repeatability. In this paper, we propose a novel approach for inferring repeatability for multivariate data and, in particular, compositional diet estimates. We extend the commonly used measure of repeatability for univariate data to the multivariate compositional setting by utilizing the mean squares obtained from a nonparametric multivariate analysis of variance, and an appropriate choice of statistical distance. Our measure and its extension are compatible with both balanced and unbalanced data sets. Associated confidence intervals via nonparametric bootstrapping are also developed for the case of QFASA diet estimates that incorporate both sampling error and measurement error, where the latter error arises because the diets of predators are estimated. Simulation study results suggest that for practical levels of repeatability, our methods yield confidence intervals with the desired coverage probability even when the sample size relative to the dimension of the data (i.e., number of prey species eaten) is small. We tested our methods using QFASA diet estimates for free-ranging Northwest Atlantic grey seals. Given the importance of understanding how predator diets vary over time and space, our method may find broad application to other compositional diet estimates, including those derived from the stomach or fecal contents, and stable isotope analyses.
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Affiliation(s)
- Connie Stewart
- Department of Mathematics and StatisticsUniversity of New Brunswick Saint JohnSaint JohnNew BrunswickCanada
| | - Shelley L. C. Lang
- Department of BiologyDalhousie UniversityHalifaxNova ScotiaCanada
- Present address:
Northwest Fisheries Sciences CentreFisheries and Oceans CanadaSt. John'sNewfoundland and LabradorCanada
| | - Sara Iverson
- Department of BiologyDalhousie UniversityHalifaxNova ScotiaCanada
| | - W. Don Bowen
- Department of BiologyDalhousie UniversityHalifaxNova ScotiaCanada
- Fisheries and Oceans CanadaBedford Institute of OceanographyDartmouthNova ScotiaCanada
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Pace DS, Di Marco C, Giacomini G, Ferri S, Silvestri M, Papale E, Casoli E, Ventura D, Mingione M, Alaimo Di Loro P, Jona Lasinio G, Ardizzone G. Capitoline Dolphins: Residency Patterns and Abundance Estimate of Tursiops truncatus at the Tiber River Estuary (Mediterranean Sea). BIOLOGY 2021; 10:275. [PMID: 33800538 PMCID: PMC8066396 DOI: 10.3390/biology10040275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 11/18/2022]
Abstract
Periodic assessments of population status and trends to detect natural influences and human effects on coastal dolphin are often limited by lack of baseline information. Here, we investigated for the first time the site-fidelity patterns and estimated the population size of bottlenose dolphins (Tursiops truncatus) at the Tiber River estuary (central Mediterranean, Tyrrhenian Sea, Rome, Italy) between 2017 and 2020. We used photo-identification data and site-fidelity metrics to study the tendency of dolphins to remain in, or return to, the study area, and capture-recapture models to estimate the population abundance. In all, 347 unique individuals were identified. The hierarchical cluster analysis highlighted 3 clusters, labeled resident (individuals encountered at least five times, in three different months, over three distinct years; n = 42), part-time (individuals encountered at least on two occasions in a month, in at least two different years; n = 73), and transient (individuals encountered on more than one occasion, in more than 1 month, none of them in more than 1 year; n = 232), each characterized by site-fidelity metrics. Open POPAN modeling estimated a population size of 529 individuals (95% CI: 456-614), showing that the Capitoline (Roman) coastal area and nearby regions surrounding the Tiber River estuary represent an important, suitable habitat for bottlenose dolphins, despite their proximity to one of the major urban centers in the world (the city of Rome). Given the high number of individuals in the area and the presence of resident individuals with strong site fidelity, we suggest that conservation plans should not be focused only close to the Tiber River mouths but extended to cover a broader scale of area.
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Affiliation(s)
- Daniela Silvia Pace
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Chiara Di Marco
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Giancarlo Giacomini
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Sara Ferri
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Margherita Silvestri
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Elena Papale
- CNR-IAS, Campobello di Mazara, 91021 Trapani, Italy;
- Department of Life Sciences and Systems Biology, University of Torino, 10123 Torino, Italy
| | - Edoardo Casoli
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Daniele Ventura
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
| | - Marco Mingione
- Department of Statistical Sciences, Sapienza University of Rome, 00185 Rome, Italy; (M.M.); (P.A.D.L.); (G.J.L.)
| | - Pierfrancesco Alaimo Di Loro
- Department of Statistical Sciences, Sapienza University of Rome, 00185 Rome, Italy; (M.M.); (P.A.D.L.); (G.J.L.)
| | - Giovanna Jona Lasinio
- Department of Statistical Sciences, Sapienza University of Rome, 00185 Rome, Italy; (M.M.); (P.A.D.L.); (G.J.L.)
| | - Giandomenico Ardizzone
- Department of Environmental Biology, Sapienza University of Rome, 00185 Rome, Italy; (C.D.M.); (G.G.); (S.F.); (M.S.); (E.C.); (D.V.); (G.A.)
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Giroux A, Ortega Z, Bertassoni A, Desbiez ALJ, Kluyber D, Massocato GF, DE Miranda G, Mourão G, Surita L, Attias N, Bianchi RDC, Gasparotto VPDO, Oliveira-Santos LGR. The role of environmental temperature on movement patterns of giant anteaters. Integr Zool 2021; 17:285-296. [PMID: 33738919 DOI: 10.1111/1749-4877.12539] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mammals can show conspicuous behavioral responses to thermal variation, including changes in movement patterns. We used an integrative approach to understand how environmental temperature can drive the movement behavior of a mammal with low capacity for physiological thermoregulation, the giant anteater (Myrmecophaga tridactyla). We tracked 52 giant anteaters in 7 areas throughout the Brazilian savannah. We estimated the distance moved, area used, use of forest areas, and mean environmental temperature for each monitoring day of each individual. We modeled these data with Mixed Structural Equations - considering the possible interactions between our variables and controlling for sex and body mass. Giant anteaters reduced displacement and increased forest use with decreasing environmental temperature, probably because of their low body heat production. It is possible that they reduce distance moved and area used by reducing the duration of activity. With decreasing temperature, forest habitats become warmer than open ones, besides buffer rain and chilly winds. Reducing displacement and using forests are important strategies to reduce body heat loss and the energetic costs of thermoregulation. However, decreasing movement can limit food access and, consequently, fitness. Therefore, we highlight the importance of forests as thermal shelters. With increasing frequency and intensity of extreme weather events, we showed the need to preserve forest patches to offer suitable conditions for tropical mammals' behavioral thermoregulation. In this context, policies favoring deforestation on Brazilian territory are especially worrisome. Finally, we emphasize the need of integrative approaches to understand the complex interactions between organisms and the environment.
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Affiliation(s)
- Aline Giroux
- Ecology Department, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Zaida Ortega
- Ecology Department, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Alessandra Bertassoni
- Post Graduate Program of Ecology and Evolution, Federal University of Goiás (UFG), Goiânia, Goiás, Brazil.,Institute of Research and Conservation of Anteaters in Brazil (PROJETO TAMANDUÁ), Parnaíba, Piauí, Brazil
| | - Arnaud Léonard Jean Desbiez
- Institute for the Conservation of Wild Animals (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.,Royal Zoological Society of Scotland (RZSS), Murrayfield, Edinburgh, UK.,Institute for Ecological Research (IPÊ), Nazaré Paulista, São Paulo, Brazil
| | - Danilo Kluyber
- Institute for the Conservation of Wild Animals (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.,Institute for Ecological Research (IPÊ), Nazaré Paulista, São Paulo, Brazil.,Naples Zoo at Caribbean Gardens, Naples, Florida, USA
| | - Gabriel Favero Massocato
- Institute for the Conservation of Wild Animals (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.,Institute for Ecological Research (IPÊ), Nazaré Paulista, São Paulo, Brazil.,The Houston Zoo, Houston, Texas, USA
| | | | | | - Luciana Surita
- Natural Resources Graduate Program (PRONAT) - Federal University of Roraima (UFRR), Boa Vista, Roraima, Brazil
| | - Nina Attias
- Institute for the Conservation of Wild Animals (ICAS), Campo Grande, Mato Grosso do Sul, Brazil.,Animal Biology Graduate Program, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Rita de Cassia Bianchi
- Animal Biology Department, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - Vinícius Peron de Oliveira Gasparotto
- Institute of Research and Conservation of Anteaters in Brazil (PROJETO TAMANDUÁ), Parnaíba, Piauí, Brazil.,Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine, University of São Paulo (USP), São Paulo, SP, Brazil.,Brazilian Institute for Conservation Medicine (TRÍADE), Recife, Pernambuco, Brazil
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