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Articles 1 - 30 of 109
Full-Text Articles in Life Sciences
Effect Of Enrichment On Gamete Production, Gamete Quality, And Spawning Coloration In Hormonally Induced Redside Dace Clinostomus Elongatus, Ashley M. Watt, Ali I. Mokdad, Trevor E. Pitcher
Effect Of Enrichment On Gamete Production, Gamete Quality, And Spawning Coloration In Hormonally Induced Redside Dace Clinostomus Elongatus, Ashley M. Watt, Ali I. Mokdad, Trevor E. Pitcher
Integrative Biology Publications
Due to the alarming rates of freshwater fish extinctions, urgent action is needed to develop captive breeding programs for imperiled species and enhance existing practices to improve reproductive outcomes. Here, we investigated the effects of enrichment on gamete production, quality, and spawning coloration following hormone injection (i.e. carp pituitary, gonadotropin) in the endangered redside dace Clinostomus elongatus, a sexually dimorphic, presumably obligate nest parasite. C. elongatus were reared in either a non-enriched environment (i.e. barren) or an enriched environment (i.e. substrate, plants, and spawning nest-building hosts) for 1 yr prior to hormone induction. We found no differences in the proportion …
Selection And Validation Of Release Sites For Conservation Translocations Of Temperate-Zone Snakes, Jonathan D. Choquette, Ali I. Mokdad, Trevor E. Pitcher, Jacqueline D. Litzgus
Selection And Validation Of Release Sites For Conservation Translocations Of Temperate-Zone Snakes, Jonathan D. Choquette, Ali I. Mokdad, Trevor E. Pitcher, Jacqueline D. Litzgus
Integrative Biology Publications
Poor habitat quality is one of the most important reasons for reintroduction failure of reptiles; therefore, release site suitability ought to be evaluated prior to conducting conservation translocations. In temperate zone snakes, translocations have failed due to high overwinter mortality, so practitioners have recommended that release sites be located near suitable hibernacula. The presence of a Life Zone (LZ), the underground space above the groundwater table and below the frost line, may indicate the presence of suitable hibernation habitat. Identification and validation of sites with LZ, however, is challenged by the dynamic nature of groundwater and frost levels, coupled with …
Phenotypic Constraints At The Top Of The World: An Arctic Songbird Faces The Cumulative Cost Of Maintaining A Winter-Like Phenotype During Breeding, Audrey Le Pogam, Ryan S. O’Connor, Oliver P. Love, Kevin G. Young, Justine Drolet, Lyette Régimbald, Gabrielle Roy, Francis Robitaille, Dominique Berteaux, Andrew Tam, François Vézina
Phenotypic Constraints At The Top Of The World: An Arctic Songbird Faces The Cumulative Cost Of Maintaining A Winter-Like Phenotype During Breeding, Audrey Le Pogam, Ryan S. O’Connor, Oliver P. Love, Kevin G. Young, Justine Drolet, Lyette Régimbald, Gabrielle Roy, Francis Robitaille, Dominique Berteaux, Andrew Tam, François Vézina
Integrative Biology Publications
Among birds, several body composition traits typically decrease in size or mass during breeding likely as a result of competing demands during this critical life history stage. However, a recent outdoor captive study in an Arctic-breeding cold-specialist songbird (snow buntings – Plectrophenax nivalis) demonstrated that these birds maintain winter cold acclimatization during the spring and summer, despite facing summer temperatures much warmer than on their Arctic breeding grounds. This suggests that buntings may face a cumulative physiological cost during breeding: having to support a winter phenotype while also upregulating additional traits for reproduction. The current study aimed to test this …
Multi-Year Soundscape Recordings And Automated Call Detection Reveals Varied Impact Of Moonlight On Calling Activity Of Neotropical Forest Katydids, Laurel B. Symes, Shyam Madhusudhana, Sharon J. Martinson, Inga Geipel, Hannah M. Ter Hofstede
Multi-Year Soundscape Recordings And Automated Call Detection Reveals Varied Impact Of Moonlight On Calling Activity Of Neotropical Forest Katydids, Laurel B. Symes, Shyam Madhusudhana, Sharon J. Martinson, Inga Geipel, Hannah M. Ter Hofstede
Integrative Biology Publications
Night-time light can have profound ecological effects, even when the source is natural moonlight. The impacts of light can, however, vary substantially by taxon, habitat and geographical region. We used a custom machine learning model built with the Python package Koogu to investigate the in situ effects of moonlight on the calling activity of neotropical forest katydids over multiple years. We prioritised species with calls that were commonly detected in human annotated data, enabling us to evaluate model performance. We focused on eight species of katydids that the model identified with high precision (generally greater than 0.90) and moderate-to-high recall …
The Circumpolar Impacts Of Climate Change And Anthropogenic Stressors On Arctic Cod (Boreogadus Saida) And Its Ecosystem, Maxime Geoffroy, Caroline Bouchard, Hauke Flores, Dominique Robert, Harald Gjøsæter, Carie Hoover, Haakon Hop, Nigel E. Hussey, Jasmine Nahrgang, Nadja Steiner, Morgan Bender, Jørgen Berge, Giulia Castellani, Natalia Chernova, Louise Copeman, Carmen L. David, Alison Deary, George Divoky, Andrey V. Dolgov, Janet Duffy-Anderson
The Circumpolar Impacts Of Climate Change And Anthropogenic Stressors On Arctic Cod (Boreogadus Saida) And Its Ecosystem, Maxime Geoffroy, Caroline Bouchard, Hauke Flores, Dominique Robert, Harald Gjøsæter, Carie Hoover, Haakon Hop, Nigel E. Hussey, Jasmine Nahrgang, Nadja Steiner, Morgan Bender, Jørgen Berge, Giulia Castellani, Natalia Chernova, Louise Copeman, Carmen L. David, Alison Deary, George Divoky, Andrey V. Dolgov, Janet Duffy-Anderson
Integrative Biology Publications
Arctic cod (Boreogadus saida) is the most abundant forage fish in the Arctic Ocean. Here we review Arctic cod habitats, distribution, ecology, and physiology to assess how climate change and other anthropogenic stressors are affecting this key species. This review identifies vulnerabilities for different life stages across the entire distribution range of Arctic cod. We explore the impact of environmental (abiotic and biotic) and anthropogenic stressors on Arctic cod with a regional perspective in a scenario up to the year 2050 and identify knowledge gaps constraining predictions. Epipelagic eggs and larvae are more vulnerable to climate change and stressors than …
A Comparative Analysis Of Form And Function In Centrarchidae Hearing Ability: Does Otolith Variation Affect Auditory Responsiveness?, Taylor A. Bendig, Grace M. Dycha, Elise M. Bull, Roselia Ayala-Osorio, Dennis M. Higgs
A Comparative Analysis Of Form And Function In Centrarchidae Hearing Ability: Does Otolith Variation Affect Auditory Responsiveness?, Taylor A. Bendig, Grace M. Dycha, Elise M. Bull, Roselia Ayala-Osorio, Dennis M. Higgs
Integrative Biology Publications
There exists a wealth of knowledge on hearing ability in individual fish species, but the role of interspecific variation, and drivers behind it, remains understudied, making it difficult to understand evolutionary drivers. The current study quantified hearing thresholds for three species of sunfish in the family Centrarchidae [bluegill sunfish (Lepomis macrochirus), pumpkinseed sunfish (Lepomis gibbosus), and rock bass (Ambloplites rupestris)] using auditory evoked potentials and behavioral trials and saccular otolith size and hair cell density. In auditory physiological experiments, 10-ms tone bursts were played and responses monitored to measure hearing. In behavioral experiments, fish were exposed to the same tone …
Monitoring Biodiversity Loss In Rapidly Changing Afrotropical Ecosystems: An Emerging Imperative For Governance And Research, A. O. Achieng, G. B. Arhonditsis, N. Mandrak, C. Febria, B. Opaa, T. J. Coffey, F. O. Masese, K. Irvine, Z. M. Ajode, K. Obiero, J. E. Barasa, B. Kaunda-Arara
Monitoring Biodiversity Loss In Rapidly Changing Afrotropical Ecosystems: An Emerging Imperative For Governance And Research, A. O. Achieng, G. B. Arhonditsis, N. Mandrak, C. Febria, B. Opaa, T. J. Coffey, F. O. Masese, K. Irvine, Z. M. Ajode, K. Obiero, J. E. Barasa, B. Kaunda-Arara
Integrative Biology Publications
Africa is experiencing extensive biodiversity loss due to rapid changes in the environment, where natural resources constitute the main instrument for socioeconomic development and a mainstay source of livelihoods for an increasing population. Lack of data and information deficiency on biodiversity, but also budget constraints and insufficient financial and technical capacity, impede sound policy design and effective implementation of conservation and management measures. The problem is further exacerbated by the lack of harmonized indicators and databases to assess conservation needs and monitor biodiversity losses. We review challenges with biodiversity data (availability, quality, usability and database access) as a key limiting …
First Recorded Occurrence Of The Parasitic Barnacle (Anelasma Squalicola) On A Greenland Shark (Somniosus Microcephalus) In The Canadian Arctic, Eric Ste-Marie, Henrik Glenner, David J. Rees, Nigel E. Hussey
First Recorded Occurrence Of The Parasitic Barnacle (Anelasma Squalicola) On A Greenland Shark (Somniosus Microcephalus) In The Canadian Arctic, Eric Ste-Marie, Henrik Glenner, David J. Rees, Nigel E. Hussey
Integrative Biology Publications
A solitary Anelasma squalicola specimen was collected from the cloaca of a Greenland shark (Somniosus microcephalus), the first time this association has been recorded. The specimen's identity was confirmed through morphological and genetic assessment (mitochondrial markers: COI and control region). A. squalicola is a species typically associated with deep-sea lantern sharks (Etmopteridae) and, until the present observation, had never been observed at a sexually mature size in the absence of a mating partner. Given the reported negative effects of this parasite on its hosts, monitoring Greenland sharks for additional cases is recommended.
Song Overlapping And Matching During Low-Arousal Singing And Their Relation To Visual Ornaments, Parental Care And Breeding Success In The Great Tit (Parus Major), Nina Bircher, Daniel J. Mennill, Kees Van Oers, Marc Naguib
Song Overlapping And Matching During Low-Arousal Singing And Their Relation To Visual Ornaments, Parental Care And Breeding Success In The Great Tit (Parus Major), Nina Bircher, Daniel J. Mennill, Kees Van Oers, Marc Naguib
Integrative Biology Publications
Eavesdropping on interactions between conspecific animals provides a low-cost method for assessing other individuals. Asymmetries in territorial counter-singing interactions in songbirds provide a rich source of information for eavesdroppers about differences between the singers. Yet, little is known about the relationship between interactive singing in a natural, low-arousal context among territorial neighbours and individual traits of males. We used a microphone array to monitor natural counter-singing interactions in great tits (Parus major) during nest building, at the onset of the breeding season. We quantified song overlapping and song matching for 30 pairs (dyads) of interacting males, singing at their nest, …
Contrasting Intra-Individual Variation In Size-Based Trophic And Habitat Shifts For Two Coastal Arctic Fish Species, Harri Pettitt-Wade, Nigel E. Hussey, Colin P. Gallagher, Ellen V. Lea, Danielle L. Orrell, Lisa L. Loseto
Contrasting Intra-Individual Variation In Size-Based Trophic And Habitat Shifts For Two Coastal Arctic Fish Species, Harri Pettitt-Wade, Nigel E. Hussey, Colin P. Gallagher, Ellen V. Lea, Danielle L. Orrell, Lisa L. Loseto
Integrative Biology Publications
Within and among species variation in trophic and habitat shifts with body size can indicate the potential adaptive capacity of species to ecosystem change. In Arctic coastal ecosystems, which experience dramatic seasonal shifts and are undergoing rapid change, quantifying the trophic flexibility of coastal fishes with different migratory tactics has received limited attention. We examined the relationships among body length and condition (Fulton’s K, phase angle from Bioelectrical Impedance Analysis) with trophic and habitat shifts (differences in δ15N and δ13C between blood tissues with different turnover rates) of two abundant and culturally important species, anadromous Arctic char (Salvelinus alpinus, n …
Collective Action Is Needed To Build A More Just Science System, Aisling Rayne, Hitaua Arahanga-Doyle, Bethany Cox, Murray P. Cox, Catherine M. Febria, Stephanie J. Galla, Shaun C. Hendy, Kirsten Locke, Anna Matheson, Aleksandra Pawlik, Tom Roa, Emma L. Sharp, Leilani A. Walker, Krushil Watene, Priscilla M. Wehi, Tammy E. Steeves
Collective Action Is Needed To Build A More Just Science System, Aisling Rayne, Hitaua Arahanga-Doyle, Bethany Cox, Murray P. Cox, Catherine M. Febria, Stephanie J. Galla, Shaun C. Hendy, Kirsten Locke, Anna Matheson, Aleksandra Pawlik, Tom Roa, Emma L. Sharp, Leilani A. Walker, Krushil Watene, Priscilla M. Wehi, Tammy E. Steeves
Integrative Biology Publications
No abstract provided.
Sharing Across The Space: Introduction To A Special Issue On Bridging Indigenous And Non-Indigenous Knowledge Systems, A. M. Muir, A. T. Duncan, K. Almack, N. Boucher, E. S. Dunlop, C. Febria, J. T. Ives, R. Lauzon, H. Lickers, W. P. Mattes, D. Mcgregor, H. Mcgregor, A. J. Reid
Sharing Across The Space: Introduction To A Special Issue On Bridging Indigenous And Non-Indigenous Knowledge Systems, A. M. Muir, A. T. Duncan, K. Almack, N. Boucher, E. S. Dunlop, C. Febria, J. T. Ives, R. Lauzon, H. Lickers, W. P. Mattes, D. Mcgregor, H. Mcgregor, A. J. Reid
Integrative Biology Publications
This special issue contains 16 articles inspired from a session at the 2021 64th International Association for Great Lakes Research Annual Meeting entitled: “Bridging Knowledge Systems between Indigenous and non-Indigenous communities.” Four common themes associated with bridging knowledge systems emerged from the collection of articles herein. First, wise practices should form the foundation of ethical, responsive, and productive collaborations. Second, inclusive, and accessible practices can improve our ability to bridge knowledge systems. Third, celebrating and embracing diverse languages and cultures enriches our connection to and understanding of the world around us; languages and cultures are a critical aspect of ontology …
Energetic Connectivity Of Diverse Elasmobranch Populations – Implications For Ecological Resilience, Oliver N. Shipley, Philip Matich, Nigel E. Hussey, Annabelle M.L. Brooks, Demian Chapman, Michael G. Frisk, Annie E. Guttridge, Tristan L. Guttridge, Lucy A. Howey, Sami Kattan, Daniel J. Madigan, Owen O’Shea, Nicholas V. Polunin, Michael Power, Matthew J. Smukall, Eric V.C. Schneider, Brendan D. Shea, Brendan S. Talwar, Maggie Winchester, Edward J. Brooks
Energetic Connectivity Of Diverse Elasmobranch Populations – Implications For Ecological Resilience, Oliver N. Shipley, Philip Matich, Nigel E. Hussey, Annabelle M.L. Brooks, Demian Chapman, Michael G. Frisk, Annie E. Guttridge, Tristan L. Guttridge, Lucy A. Howey, Sami Kattan, Daniel J. Madigan, Owen O’Shea, Nicholas V. Polunin, Michael Power, Matthew J. Smukall, Eric V.C. Schneider, Brendan D. Shea, Brendan S. Talwar, Maggie Winchester, Edward J. Brooks
Integrative Biology Publications
Understanding the factors shaping patterns of ecological resilience is critical for mitigating the loss of global biodiversity. Throughout aquatic environments, highly mobile predators are thought to serve as important vectors of energy between ecosystems thereby promoting stability and resilience. However, the role these predators play in connecting food webs and promoting energy flow remains poorly understood in most contexts. Using carbon and nitrogen isotopes, we quantified the use of several prey resource pools (small oceanic forage, large oceanics, coral reef, and seagrass) by 17 species of elasmobranch fishes (n = 351 individuals) in The Bahamas to determine their functional diversity …
Lower Nutritional State And Foraging Success In An Arctic Seabird Despite Behaviorally Flexible Responses To Environmental Change, Alyssa Eby, Allison Patterson, Graham Sorenson, Thomas Lazarus, Shannon Whelan, Kyle H. Elliott, H. Grant Gilchrist, Oliver P. Love
Lower Nutritional State And Foraging Success In An Arctic Seabird Despite Behaviorally Flexible Responses To Environmental Change, Alyssa Eby, Allison Patterson, Graham Sorenson, Thomas Lazarus, Shannon Whelan, Kyle H. Elliott, H. Grant Gilchrist, Oliver P. Love
Integrative Biology Publications
The degree to which individuals adjust foraging behavior in response to environmental variability can impact foraging success, leading to downstream impacts on fitness and population dynamics. We examined the foraging flexibility, average daily energy expenditure, and foraging success of an ice-associated Arctic seabird, the thick-billed murre (Uria lomvia) in response to broad-scale environmental conditions at two different-sized, low Arctic colonies located First, we compared foraging behavior (measured via GPS units), average daily energy expenditure (estimated from GPS derived activity budgets), and foraging success (nutritional state measured via nutritional biomarkers pre- and post- GPS deployment) of murres at two colonies, which …
Exposure And Behavioral Responses Of Tagged Beluga Whales (Delphinapterus Leucas) To Ships In The Pacific Arctic, Morgan J. Martin, William D. Halliday, Luke Storrie, John J. Citta, Jackie Dawson, Nigel E. Hussey, Francis Juanes, Lisa L. Loseto, Shannon A. Macphee, Lisa Moore, Adrian Nicoll, Gregory O'Corry-Crowe, Stephen J. Insley
Exposure And Behavioral Responses Of Tagged Beluga Whales (Delphinapterus Leucas) To Ships In The Pacific Arctic, Morgan J. Martin, William D. Halliday, Luke Storrie, John J. Citta, Jackie Dawson, Nigel E. Hussey, Francis Juanes, Lisa L. Loseto, Shannon A. Macphee, Lisa Moore, Adrian Nicoll, Gregory O'Corry-Crowe, Stephen J. Insley
Integrative Biology Publications
Arctic marine mammals face a multitude of challenges linked to climate change, including increasing anthropogenic noise from ship traffic. The beluga whale (Delphinapterus leucas), a predominately Arctic endemic cetacean, relies heavily on acoustic communication, with documented overlap between their vocalizations and hearing range and ship noise. Some belugas migrate through areas with the highest levels of ship traffic in the Pacific Arctic and exposure to ship noise is highly probable. Here, we document the responses of nine satellite-tagged Eastern Beaufort Sea belugas to encounters with ships in the Beaufort, Chukchi, and Bering Seas during July–December 2018. We report 177 occasions …
Tracing Carbon Flow And Trophic Structure Of A Coastal Arctic Marine Food Web Using Highly Branched Isoprenoids And Carbon, Nitrogen And Sulfur Stable Isotopes, Rémi Amiraux, C. J. Mundy, Marie Pierrejean, Andrea Niemi, Kevin J. Hedges, Thomas A. Brown, Jens K. Ehn, Kyle H. Elliott, Steven H. Ferguson, Aaron T. Fisk, Grant Gilchrist, Les N. Harris, Katrin Iken, Kevin B. Jacobs, Kelsey F. Johnson, Z. A. Kuzyk, Audrey Limoges, Tracey N. Loewen, Oliver P. Love, Cory J.D. Matthews
Tracing Carbon Flow And Trophic Structure Of A Coastal Arctic Marine Food Web Using Highly Branched Isoprenoids And Carbon, Nitrogen And Sulfur Stable Isotopes, Rémi Amiraux, C. J. Mundy, Marie Pierrejean, Andrea Niemi, Kevin J. Hedges, Thomas A. Brown, Jens K. Ehn, Kyle H. Elliott, Steven H. Ferguson, Aaron T. Fisk, Grant Gilchrist, Les N. Harris, Katrin Iken, Kevin B. Jacobs, Kelsey F. Johnson, Z. A. Kuzyk, Audrey Limoges, Tracey N. Loewen, Oliver P. Love, Cory J.D. Matthews
Integrative Biology Publications
Climate-driven alterations of the marine environment are most rapid in Arctic and subarctic regions, including Hudson Bay in northern Canada, where declining sea ice, warming surface waters and ocean acidification are occurring at alarming rates. These changes are altering primary production patterns that will ultimately cascade up through the food web. Here, we investigated (i) the vertical trophic structure of the Southampton Island marine ecosystem in northern Hudson Bay, (ii) the contribution of benthic and pelagic-derived prey to the higher trophic level species, and (iii) the relative contribution of ice algae and phytoplankton derived carbon in sustaining this ecosystem. For …
Molecular Ecology Of The Sleeper Shark Subgenus Somniosus (Somniosus) Reveals Genetic Homogeneity Within Species And Lack Of Support For S. Antarcticus, Laura E. Timm, Cindy Tribuzio, Ryan P. Walter, Wesley A. Larson, Brent W. Murray, Nigel E. Hussey, Sharon Wildes
Molecular Ecology Of The Sleeper Shark Subgenus Somniosus (Somniosus) Reveals Genetic Homogeneity Within Species And Lack Of Support For S. Antarcticus, Laura E. Timm, Cindy Tribuzio, Ryan P. Walter, Wesley A. Larson, Brent W. Murray, Nigel E. Hussey, Sharon Wildes
Integrative Biology Publications
Inferences made from molecular data support regional stock assessment goals by providing insights into the genetic population dynamics of enigmatic species. Population genomics metrics, such as genetic diversity and population connectivity, serve as useful proxies for species health and stability. Sleeper sharks (genus Somniosus) are ecologically important deep-sea predators, estimated to reach ages of 250 to 300 yr and taking decades to reach sexual maturity. The subgenus Somniosus (Somniosus) is comprised of 3 species: S. pacificus, S. microcephalus, and S. antarcticus. Given the life history strategy of somniosids, they are vulnerable to overfishing and population declines. Further, data to assess …
A Non-Racial Approach To Assessing Group Membership Of Victims In A Mass Grave Using Cranial Data, John Albanese, Alyssa Di Iorio
A Non-Racial Approach To Assessing Group Membership Of Victims In A Mass Grave Using Cranial Data, John Albanese, Alyssa Di Iorio
Integrative Biology Publications
In some jurisdictions, race, ancestry, or population affinity have been used for historical and po-litical, rather than biological, reasons in forensic anthropology when identifying individuals. The approach persists even though the genetic and skeletal data clearly demonstrate that human variation does not cluster into these groups. For over 60 years, these methods have consistently performed poorly when independently tested using large samples. By racializing the deceased, these methods have further marginalized the living. However, there is a need in the investigation of genocide and human rights violations to demonstrate that a specific group was targeted. Without relying on the outdated …
A Systematic Review Of Snake Translocations To Identify Potential Tactics For Reducing Postrelease Effects, Jonathan D. Choquette, Jacqueline D. Litzgus, Joanne X.Y. Gui, Trevor E. Pitcher
A Systematic Review Of Snake Translocations To Identify Potential Tactics For Reducing Postrelease Effects, Jonathan D. Choquette, Jacqueline D. Litzgus, Joanne X.Y. Gui, Trevor E. Pitcher
Integrative Biology Publications
Advancements in the field of reintroduction biology are needed, but understanding of how to effectively conduct translocations, particularly with snakes, is lacking. We conducted a systematic review of snake translocation studies to identify potential tactics for reducing postrelease effects. We included studies on intentional, human-mediated, wild–wild, or captive–wild translocations to any location, regardless of motive or number of snakes translocated. Only studies that presented results for at least 1 of 4 outcomes (movement behavior, site fidelity, survival, or population establishment) were included. We systematically searched 4 databases for published studies and used 5 methods to search the gray literature. Our …
Alebion Carchariae (Copepod: Caligidae) Host Plasticity And Distribution: A New Host And Locality Record From Ascension Island, Danielle L. Orrell, Jennifer M. Questel, Caitlin A. Smoot, Tiffany Simpson, Nigel E. Hussey
Alebion Carchariae (Copepod: Caligidae) Host Plasticity And Distribution: A New Host And Locality Record From Ascension Island, Danielle L. Orrell, Jennifer M. Questel, Caitlin A. Smoot, Tiffany Simpson, Nigel E. Hussey
Integrative Biology Publications
The first record of the parasite Alebion carchariae in the waters of Ascension Island collected from Galapagos sharks, Carcharhinus galapagensis (Carcharhinidae), is described. No previous record of this parasite exists for Ascension Island, nor have Galapagos sharks previously been listed as a host. Specimens of A. carchariae were identified using morphological techniques and DNA barcoding of the cytochrome c oxidase I subunit (COI) gene. This study provides the first COI barcodes for this species and a brief review of known hosts. We recommend further research to understand the life cycle of this parasite, its plasticity in terms of host/habitat selection, …
The Circadian Calling Activity Of A Lebinthine Cricket With High-Frequency Calls Is Unaffected By Cicada Choruses In The Day, Ming Kai Tan, Tony Robillard, Hannah Ter Hofstede
The Circadian Calling Activity Of A Lebinthine Cricket With High-Frequency Calls Is Unaffected By Cicada Choruses In The Day, Ming Kai Tan, Tony Robillard, Hannah Ter Hofstede
Integrative Biology Publications
Background: Many factors can influence circadian rhythms in animals. For acoustically communicating species, both abiotic cues (such as light and temperature) and biotic cues (such as the activity of other animals), can influence the timing of signalling activity. Here we compare the 24-h singing activity of the cricket Lebinthus luae in the laboratory and field to assess whether the presence of other singing insects influences circadian rhythm. Methods: Acoustic monitors were placed in four localities in Singapore and the number of L. luae calls were counted for 10 min of each hour. Individuals from the same localities were captured and …
Anthropogenic Land Uses Influence Stream Dissolved Organic Matter Quality More Than Decomposition Rates And Macroinvertebrate Diversity, Shayenna Nolan, Alyssa Alves Frazao, J D. Hosen, Catherine Febria
Anthropogenic Land Uses Influence Stream Dissolved Organic Matter Quality More Than Decomposition Rates And Macroinvertebrate Diversity, Shayenna Nolan, Alyssa Alves Frazao, J D. Hosen, Catherine Febria
Integrative Biology Publications
In the era of the Anthropocene, streams and rivers are among the most heavily impacted ecosystems due to the influence of catchment land use on stream water quality and ecological condition. In practice, structural and functional indicators collected by biomonitoring programs are underused and thus limited in their ability to offer practical insight into functional-based restoration approaches. Here we applied a novel combination of indicators—cotton strip decomposition, benthic invertebrate sampling together with dissolved organic matter (DOM) composition — to determine if streams highly impacted by urbanized and agricultural land use across Windsor-Essex (southwestern Ontario, Canada) were consistent across season, anthropogenic …
Quiet In The Nest: The Nest Environment Attenuates Song In A Grassland Songbird, Sarah L. Dobney, Mikayla M.K. Bornais, D. Ryan Norris, Amy E.M. Newman, Heather Williams, Stéphanie M. Doucet, Daniel J. Mennill
Quiet In The Nest: The Nest Environment Attenuates Song In A Grassland Songbird, Sarah L. Dobney, Mikayla M.K. Bornais, D. Ryan Norris, Amy E.M. Newman, Heather Williams, Stéphanie M. Doucet, Daniel J. Mennill
Integrative Biology Publications
The nest environment may limit the ability of nest-bound birds to hear sounds from the outside world. In vocal learning species, such as humans and songbirds, it is vital for young animals to hear the voices of conspecific animals early in life. In songbirds, nest structure varies considerably across species, and the resulting impact on sound transmission may have consequences for vocal learning in nestlings. In this study, we tested the hypothesis that the nest environment attenuates song of Savannah Sparrows (Passerculus sandwichensis), grassland songbirds that build nests on the ground under cover of dense vegetation. We recorded live Savannah …
Alphaherpesvirus Infection In A Free-Ranging Narwhal Monodon Monoceros From Arctic Canada, Ole Nielsen, Thaís C.S. Rodrigues, Marianne Marcoux, Karine Béland, Kuttichantran Subramaniam, Stéphane Lair, Nigel E. Hussey, Thomas B. Waltzek
Alphaherpesvirus Infection In A Free-Ranging Narwhal Monodon Monoceros From Arctic Canada, Ole Nielsen, Thaís C.S. Rodrigues, Marianne Marcoux, Karine Béland, Kuttichantran Subramaniam, Stéphane Lair, Nigel E. Hussey, Thomas B. Waltzek
Integrative Biology Publications
We report the detection of an alphaherpesvirus infecting an adult female narwhal Monodon monoceros captured live during a tagging project in Tremblay Sound, Nunavut, Canada, in August 2018. The individual had 2 open wounds on the dorsum but appeared in good overall health. A blowhole swab was collected, and subsequent virus isolation was performed using a beluga whale primary cell line. Non-syncytial cytopathic effects were seen, in contrast to syncytial cytopathic effects described for monodontid alphaherpesvirus 1 (MoAHV1) isolates previously recovered from beluga whales Delphinapterus leucas from Alaska, USA, and the Northwest Territories, Canada. Next-generation sequencing was performed on a …
One Informs The Other: Unionid Species At Risk And Benthic Macroinvertebrate Community Monitoring Data Are Complementary, Roland A. Eveleens, Todd J. Morris, Daelyn A. Woolnough, Catherine M. Febria
One Informs The Other: Unionid Species At Risk And Benthic Macroinvertebrate Community Monitoring Data Are Complementary, Roland A. Eveleens, Todd J. Morris, Daelyn A. Woolnough, Catherine M. Febria
Integrative Biology Publications
Benthic macroinvertebrate communities, which include unionid freshwater mussels, enhance the health of river ecosystems. Human impacts have driven declines within freshwater mussel communities and due to their complex life cycles, mussel recovery efforts are complex. In Canada, conservation of imperiled species has focused on biodiversity hotspots such as the Sydenham River in the Laurentian Great Lakes Basin. In practice, species conservation and habitat monitoring are siloed between federal agencies and local conservation authorities, limiting the potential for alignment of conservation policy and practice. Here we bring together federal, local, and our own survey data to explore patterns of co-occurrences between …
Predator–Prey Interactions Between Gleaning Bats And Katydids, Hannah M. Ter Hofstede, Paul A. Faure
Predator–Prey Interactions Between Gleaning Bats And Katydids, Hannah M. Ter Hofstede, Paul A. Faure
Integrative Biology Publications
Bats are voracious predators of insects, and many insects have ears sensitive to the high-frequency echolocation calls of bats. Eared insects show a variety of defences when they detect bat echolocation calls. Professor Brock Fenton was an early contributor to the field of bat–insect interactions, inspiring many students to pursue investigations that have advanced our understanding of the relationship between predators and prey. Reflecting on the integrative nature of Dr. Fenton’s research, this review highlights research on the evolutionary arms race between gleaning insectivorous bats and katydid prey. Studies on this system have enhanced the field of sensory ecology by …
Combining Telemetry And Fisheries Data To Quantify Species Overlap And Evaluate Bycatch Mitigation Strategies In An Emergent Canadian Arctic Fishery, Daniel J. Madigan, Brynn M. Devine, Sam B. Weber, Angela L. Young, Nigel E. Hussey
Combining Telemetry And Fisheries Data To Quantify Species Overlap And Evaluate Bycatch Mitigation Strategies In An Emergent Canadian Arctic Fishery, Daniel J. Madigan, Brynn M. Devine, Sam B. Weber, Angela L. Young, Nigel E. Hussey
Integrative Biology Publications
Greenland halibut Reinhardtius hippoglossoides are bottom-dwelling flatfish that support commercial and community fisheries in Baffin Bay, Canada. Recently, exploratory inshore summer fisheries have raised concerns surrounding the bycatch of Greenland sharks Somniosus microcephalus and Arctic skate Amblyraja hyperborea, which are susceptible to overfishing due to their conservative life history traits. To explore fisheries selectivity and opportunities for bycatch mitigation, we combined pop-up satellite archival tags (PSATs) and fisheries data to assess habitat overlap and catch trends across these 3 species. PSAT data showed variable inter-specific overlap, with Greenland sharks primarily inhabiting depths (725 ± 193 m), Greenland halibut inhabiting a …
Breeding Stage And Tissue Isotopic Consistency Suggests Colony-Level Flexibility In Niche Breadth Of An Arctic Marine Bird, Kyle J.L. Parkinson, Holly L. Hennin, H. Grant Gilchrist, Keith A. Hobson, Nigel E. Hussey, Oliver P. Love
Breeding Stage And Tissue Isotopic Consistency Suggests Colony-Level Flexibility In Niche Breadth Of An Arctic Marine Bird, Kyle J.L. Parkinson, Holly L. Hennin, H. Grant Gilchrist, Keith A. Hobson, Nigel E. Hussey, Oliver P. Love
Integrative Biology Publications
Organisms must overcome environmental limitations to optimize their investment in life history stages to maximize fitness. Human-induced climate change is generating increasingly variable environmental conditions, impacting the demography of prey items and, therefore, the ability of consumers to successfully access resources to fuel reproduction. While climate change effects are especially pronounced in the Arctic, it is unknown whether organisms can adjust foraging decisions to match such changes. We used a 9-year blood plasma δ13C and δ15N data set from over 700 pre-breeding Arctic common eiders (Somateria mollissima) to assess breeding-stage and inter-annual variation in isotopic niche, and whether inferred trophic …
Marine Mammal Hotspots Across The Circumpolar Arctic, Charmain D. Hamilton, Christian Lydersen, Jon Aars, Mario Acquarone, Todd Atwood, Alastair Baylis, Martin Biuw, Andrei N. Boltunov, Erik W. Born, Peter Boveng, Tanya M. Brown, Michael Cameron, John Citta, Justin Crawford, Rune Dietz, Jim Elias, Steven H. Ferguson, Aaron Fisk, Lars P. Folkow, Kathryn J. Frost
Marine Mammal Hotspots Across The Circumpolar Arctic, Charmain D. Hamilton, Christian Lydersen, Jon Aars, Mario Acquarone, Todd Atwood, Alastair Baylis, Martin Biuw, Andrei N. Boltunov, Erik W. Born, Peter Boveng, Tanya M. Brown, Michael Cameron, John Citta, Justin Crawford, Rune Dietz, Jim Elias, Steven H. Ferguson, Aaron Fisk, Lars P. Folkow, Kathryn J. Frost
Integrative Biology Publications
Aim: Identify hotspots and areas of high species richness for Arctic marine mammals. Location: Circumpolar Arctic. Methods: A total of 2115 biologging devices were deployed on marine mammals from 13 species in the Arctic from 2005 to 2019. Getis-Ord Gi* hotspots were calculated based on the number of individuals in grid cells for each species and for phylogenetic groups (nine pinnipeds, three cetaceans, all species) and areas with high species richness were identified for summer (Jun-Nov), winter (Dec-May) and the entire year. Seasonal habitat differences among species’ hotspots were investigated using Principal Component Analysis. Results: Hotspots and areas with high …
Correction: Home Sweet Home: Spatiotemporal Distribution And Site Fidelity Of The Reef Manta Ray (Mobula Alfredi) In Dungonab Bay, Sudan (Movement Ecology, (2022), 10, 1, (22), 10.1186/S40462-022-00314-9), Anna M. Knochel, Nigel E. Hussey, Steven T. Kessel, Camrin D. Braun, Jesse E.M. Cochran, Graham Hill, Rebecca Klaus, Tarik Checkchak, Nasereldin M. Elamin El Hassen, Mohammed Younnis, Michael L. Berumen
Correction: Home Sweet Home: Spatiotemporal Distribution And Site Fidelity Of The Reef Manta Ray (Mobula Alfredi) In Dungonab Bay, Sudan (Movement Ecology, (2022), 10, 1, (22), 10.1186/S40462-022-00314-9), Anna M. Knochel, Nigel E. Hussey, Steven T. Kessel, Camrin D. Braun, Jesse E.M. Cochran, Graham Hill, Rebecca Klaus, Tarik Checkchak, Nasereldin M. Elamin El Hassen, Mohammed Younnis, Michael L. Berumen
Integrative Biology Publications
Following publication of the original article [1], it was noted that due to a typesetting error, a duplicated version of Figure 6 was published as Figure 5. The correct Figure 5 has been included in this Correction and the original article has been corrected. The publisher apologises to the authors and readers for the inconvenience caused by the error.