scholarly journals Higher social tolerance in wild versus captive common marmosets: the role of interdependence

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Francisco Edvaldo de Oliveira Terceiro ◽  
Maria de Fátima Arruda ◽  
Carel P. van Schaik ◽  
Arrilton Araújo ◽  
Judith Maria Burkart
Keyword(s):  
Common Marmoset ◽  
Social Tolerance ◽  
Common Marmosets ◽  
Group Competition ◽  
In Captivity ◽  
In The Wild ◽  
Effect Of Food ◽  
Multiple Levels ◽  
Free Ranging

AbstractSocial tolerance in a group reflects the balance between within-group competition and interdependence: whereas increased competition leads to a reduction in social tolerance, increased interdependence increases it. Captivity reduces both feeding competition and interdependence and can therefore affect social tolerance. In independently breeding primates, social tolerance has been shown to be higher in captivity, indicating a strong effect of food abundance. It is not known, however, how social tolerance in cooperative breeders, with their much higher interdependence, responds to captivity. Here, we therefore compared social tolerance between free-ranging and captive groups in the cooperatively breeding common marmoset and found higher social tolerance (measured as proximity near food, co-feeding, and food sharing) in the wild. Most likely, social tolerance in the wild is higher because interdependence is particularly high in the wild, especially because infant care is more costly there than in captivity. These results indicate that the high social tolerance of these cooperative breeders in captivity is not an artefact, and that captive data may even have underestimated it. They may also imply that the cooperative breeding and foraging of our hominin ancestors, which relied on strong interdependence at multiple levels, was associated with high social tolerance.

scholarly journals Reproductive behaviour in free-ranging crested porcupine Hystrix cristata L., 1758

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Francesca Coppola ◽  
Antonio Felicioli
Keyword(s):  
Parental Care ◽  
Reproductive Behaviour ◽  
Duration Of Copulation ◽  
Contact Behaviour ◽  
Reproduction Biology ◽  
The Family ◽  
In Captivity ◽  
In The Wild ◽  
Crested Porcupine ◽  
Free Ranging

AbstractPrevious data on crested porcupine reproduction biology were mostly collected in captivity or semi-captivity due to its elusive, burrowing and mainly nocturnal habits. Between 2017 and 2019 the reproductive behaviour (i.e., intrapair mounting and copulation, birth and parental care) of free-ranging crested porcupine was documented and described. Nightly rhythms of single and multiple mounting occurred throughout the year while only two copulation events were recorded. Three months after both copulation events, the birth of porcupettes (porcupine < 5 kg) was recorded. A stochastic phase characterized by an articulate courtship with distinct behavioural patterns always preceded each mounting event. After the stochastic phase, the presenting of the female evoked by Nose-Quill contact behaviour, occurred in 83.8% (n = 182) of mounting events, while in 16.1% (n = 35) a spontaneous presenting of the female occurred. The average duration of copulation lasted 24 s (SD = 7 s) with 17 thrusting (SD = 5.5 thrusting). Births of porcupettes occurred throughout the year from 1 to 3 times per pair per year and the litter size observed ranged from 1 to 2 porcupettes. The first emerging of porcupettes from burrow occurred at 10–15 days after birth. Parents and sub-adults of the family actively perform parental care and the permanence of sub-adults within the family (i.e., from birth to dispersal) resulted to be at least 1 year. This investigation provides new useful insights on porcupine reproductive behaviour in the wild. Such new knowledge may be useful to the management of porcupines in wild, semiwild and captive condition as well as to delineate the key habitat desiderata of this rodent.

An International Online Survey on Public Attitudes Towards the Keeping of Whales and Dolphins in Captivity

2019 ◽  
Vol 14 (3) ◽  
pp. 133-142
Author(s):  
Whitney Naylor ◽  
E. C. M. Parsons
Keyword(s):  
Online Survey ◽  
Public Attitudes ◽  
Theme Park ◽  
Theme Parks ◽  
Whale Watching ◽  
The Us ◽  
In Captivity ◽  
In The Wild ◽  
Free Ranging

In 2015, an international online survey was conducted to investigate public attitudes on keeping cetaceans in captivity (N = 858). Respondents were significantly (p < 0.001) more likely to be opposed to displaying dolphins and whales in marine theme parks and aquariums (opposed to captive display: 54.4%; support captive display: 45.5%). Only 5% of respondents from the US stated they "strongly support" (with 33.3% "support") keeping dolphins and whales in marine theme parks and aquariums, while 21% of participants from India did so (43.4% "support"). Participants that support cetaceans in captivity were significantly more likely to believe cetacean conservation is not important. Six times as many respondents (or 86%) preferred to view cetaceans in the wild via whale watching (61% preferring boat based, 25% land based) versus in captivity. Respondents from the US were less likely to prefer watching cetaceans in a marine theme park (9%) than those from India (26%). Almost 80% of respondents objected to capturing free-ranging dolphins and whales for display in zoos and aquariums. Only 19% of respondents indicated approval for dolphins performing shows involving tricks for human enjoyment, while 85% supported keeping dolphins in captivity when they are sick or injured. Eighty percent supported captive research that benefited conservation of free-ranging populations, dropping to 60% when the research supported the development of captive husbandry methods. Seventy percent of participants were opposed to keeping cetaceans in concrete tanks, versus 53% who were opposed to sea pen enclosures as well. Respondents who believed dolphin and whale conservation was not important were significantly more likely to oppose keeping captive dolphins for research benefiting conservation in the wild. Moreover, respondents who felt dolphin and whale conservation was only "slightly important" were significantly more like to support keeping captive cetaceans for entertainment purposes.

scholarly journals A preliminary assessment of bacteria in “ranched” ball pythons (Python regius), Togo, West Africa

2020 ◽  
Vol 39 ◽  
pp. 73-86 ◽  
Author(s):  
Neil D'Cruze ◽  
Jodie Bates ◽  
Délagnon Assou ◽  
Delphine Ronfot ◽  
Emma Coulthard ◽  
...  
Keyword(s):  
West Africa ◽  
Disease Surveillance ◽  
Pathogenic Bacteria ◽  
Horizontal Transmission ◽  
Commercial Activity ◽  
Python Regius ◽  
In Captivity ◽  
Potential Reservoir ◽  
In The Wild ◽  
Free Ranging

Captive reptiles are routinely identified as reservoirs of pathogenic bacteria and reports of reptile-associated infections relating to some species are well documented (e.g., salmonellosis). Currently, relatively little is known about the epidemiology and bacteria of ball pythons. We carried out a survey of ball python farms in Togo, West Africa to assess the presence of any potentially pathogenic bacterial taxa that have been identified in recent scientific literature relating to this species. The presence of bacteria belonging to the genera Acinetobacter, Bacteroides, Citrobacter, Enterobacter, Lysobacter, Proteus, Pseudomonas, Staphylococcus, and Tsukamurella in oral and cloacal samples taken from five individual ball pythons is of potential concern for horizontal transmission given that pathogenic species belonging to these genera have been previously documented. The presence of bacteria belonging to the genera Clostridium, Escherichia, Moraxella, and Stenotrophomonas in the oral and rectal samples taken from five mice used to feed ball pythons suggests that they represent a potential reservoir of infection for wild caught ball pythons and their progeny. Furthermore, possible sources of environmental contamination include other captive amphibians, birds, reptiles and mammals, as well as free ranging birds and small mammals. Additional surveillance of ball pythons in the wild and in captivity at python farms in West Africa will shed light on whether or not this type of commercial activity is increasing pathogen exposure and lowering barriers to transmission. Meanwhile, as a precautionary measure, it is recommended that python farms should immediately establish biosecurity and disease surveillance practices to minimize potential horizontal and vertical bacterial transfer.

scholarly journals First detection of herpesvirus and mycoplasma in free-ranging Hermann’s tortoises (Testudo hermanni), and in potential pet vectors

2021 ◽  
Author(s):  
J-M Ballouard ◽  
X Bonnet ◽  
J Jourdan ◽  
A Martinez-Silvestre ◽  
S Gagno ◽  
...  
Keyword(s):  
Health Impact ◽  
Upper Respiratory Tract ◽  
Pet Trade ◽  
Testudo Graeca ◽  
Mycoplasma Agassizii ◽  
In Captivity ◽  
In The Wild ◽  
Testudo Hermanni ◽  
Natural Settings ◽  
Free Ranging

AbstractTwo types of pathogens cause highly contagious upper respiratory tract diseases (URTD) in Chelonians: testudinid herpesviruses (TeHV) and a mycoplasma (Mycoplasma agassizii). In captivity, these infections are frequent and can provoke outbreaks. Pet trade generates international flow of tortoises, often without sanitary checking; individuals intentionally or accidentally released in the wild may spread pathogens. A better understanding of the transmission of infectious agents from captivity to wild tortoises is needed. Many exotic individuals have been introduced in populations of the endangered western Hermann’s tortoise (Testudo hermanni hermanni), notably spur-thighed tortoises (Testudo graeca). We assessed the presence of TeHV and mycoplasma in native western Hermann’s tortoises and in potential pet vectors in south-eastern France. Using a large sample (N=572 tortoises), this study revealed the worrying presence of herpesvirus in 7 free-ranging individuals (3 sub-populations). Additionally, Mycoplasma agassizii was detected in 15 of the 18 populations sampled with a frequency ranging from 2.5 to 25%. Exotic spur-thighed tortoises showed high frequency of Mycoplasma infection in captivity (18%) and in individuals (50%) found in native Hermann’s tortoise sub-populations, suggesting that this species could be a significant vector. The paucity of information of TeHV on European tortoise’ URTD in natural settings, especially in combination with mycoplasma, prompts for further studies. Indeed, sick tortoises remain concealed and may not be easily detected in the field. Our results indicate that both the prevalence and health impact of URTD are high should be scrutinized in the field.

scholarly journals Transcriptome Changes in Pseudomonas putida KT2440 during Medium-Chain-Length Polyhydroxyalkanoate Synthesis Induced by Nitrogen Limitation

2020 ◽  
Vol 22 (1) ◽  
pp. 152
Author(s):  
Dorota Dabrowska ◽  
Justyna Mozejko-Ciesielska ◽  
Tomasz Pokój ◽  
Slawomir Ciesielski
Keyword(s):  
Chain Length ◽  
Nitrogen Limitation ◽  
Stringent Response ◽  
Wild Type ◽  
Pseudomonas Putida Kt2440 ◽  
Medium Chain ◽  
Environmental Stimuli ◽  
Medium Chain Length ◽  
In The Wild

Pseudomonas putida’s versatility and metabolic flexibility make it an ideal biotechnological platform for producing valuable chemicals, such as medium-chain-length polyhydroxyalkanoates (mcl-PHAs), which are considered the next generation bioplastics. This bacterium responds to environmental stimuli by rearranging its metabolism to improve its fitness and increase its chances of survival in harsh environments. Mcl-PHAs play an important role in central metabolism, serving as a reservoir of carbon and energy. Due to the complexity of mcl-PHAs’ metabolism, the manner in which P. putida changes its transcriptome to favor mcl-PHA synthesis in response to environmental stimuli remains unclear. Therefore, our objective was to investigate how the P. putida KT2440 wild type and mutants adjust their transcriptomes to synthesize mcl-PHAs in response to nitrogen limitation when supplied with sodium gluconate as an external carbon source. We found that, under nitrogen limitation, mcl-PHA accumulation is significantly lower in the mutant deficient in the stringent response than in the wild type or the rpoN mutant. Transcriptome analysis revealed that, under N-limiting conditions, 24 genes were downregulated and 21 were upregulated that were common to all three strains. Additionally, potential regulators of these genes were identified: the global anaerobic regulator (Anr, consisting of FnrA, Fnrb, and FnrC), NorR, NasT, the sigma54-dependent transcriptional regulator, and the dual component NtrB/NtrC regulator all appear to play important roles in transcriptome rearrangement under N-limiting conditions. The role of these regulators in mcl-PHA synthesis is discussed.

scholarly journals Prosociality, social tolerance and partner choice facilitate mutually beneficial cooperation in common marmosets, Callithrix jacchus

2021 ◽  
Vol 173 ◽  
pp. 115-136
Author(s):  
J.S. Martin ◽  
S.E. Koski ◽  
T. Bugnyar ◽  
A.V. Jaeggi ◽  
J.J.M. Massen
Keyword(s):  
Callithrix Jacchus ◽  
Partner Choice ◽  
Social Tolerance ◽  
Common Marmosets

scholarly journals Premating barriers in young sympatric snail species

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Arina L. Maltseva ◽  
Marina A. Varfolomeeva ◽  
Arseniy A. Lobov ◽  
Polina O. Tikanova ◽  
Egor A. Repkin ◽  
...  
Keyword(s):  
Gene Flow ◽  
Snail Species ◽  
Sympatric Populations ◽  
Gastropod Species ◽  
Shell Size ◽  
Closely Related Species ◽  
Partial Canonical Correspondence Analysis ◽  
In The Wild ◽  
Isolation Index

AbstractSympatric coexistence of recently diverged species raises the question of barriers restricting the gene flow between them. Reproductive isolation may be implemented at several levels, and the weakening of some, e.g. premating, barriers may require the strengthening of the others, e.g. postcopulatory ones. We analysed mating patterns and shell size of mates in recently diverged closely related species of the subgenus Littorina Neritrema (Littorinidae, Caenogastropoda) in order to assess the role of premating reproductive barriers between them. We compared mating frequencies observed in the wild with those expected based on relative densities using partial canonical correspondence analysis. We introduced the fidelity index (FI) to estimate the relative accuracy of mating with conspecific females and precopulatory isolation index (IPC) to characterize the strength of premating barriers. The species under study, with the exception of L. arcana, clearly demonstrated preferential mating with conspecifics. According to FI and IPC, L. fabalis and L. compressa appeared reliably isolated from their closest relatives within Neritrema. Individuals of these two species tend to be smaller than those of the others, highlighting the importance of shell size changes in gastropod species divergence. L. arcana males were often found in pairs with L. saxatilis females, and no interspecific size differences were revealed in this sibling species pair. We discuss the lack of discriminative mate choice in the sympatric populations of L. arcana and L. saxatilis, and possible additional mechanisms restricting gene flow between them.

scholarly journals On the modulation and maintenance of hibernation in captive dwarf lemurs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marina B. Blanco ◽  
Lydia K. Greene ◽  
Robert Schopler ◽  
Cathy V. Williams ◽  
Danielle Lynch ◽  
...  
Keyword(s):  
Food Restriction ◽  
Metabolic Disorders ◽  
Biological Rhythms ◽  
Food Ingestion ◽  
Ambient Temperatures ◽  
In Captivity ◽  
In The Wild ◽  
Cheirogaleus Medius ◽  
Save Energy ◽  
Metabolic Strategies

AbstractIn nature, photoperiod signals environmental seasonality and is a strong selective “zeitgeber” that synchronizes biological rhythms. For animals facing seasonal environmental challenges and energetic bottlenecks, daily torpor and hibernation are two metabolic strategies that can save energy. In the wild, the dwarf lemurs of Madagascar are obligate hibernators, hibernating between 3 and 7 months a year. In captivity, however, dwarf lemurs generally express torpor for periods far shorter than the hibernation season in Madagascar. We investigated whether fat-tailed dwarf lemurs (Cheirogaleus medius) housed at the Duke Lemur Center (DLC) could hibernate, by subjecting 8 individuals to husbandry conditions more in accord with those in Madagascar, including alternating photoperiods, low ambient temperatures, and food restriction. All dwarf lemurs displayed daily and multiday torpor bouts, including bouts lasting ~ 11 days. Ambient temperature was the greatest predictor of torpor bout duration, and food ingestion and night length also played a role. Unlike their wild counterparts, who rarely leave their hibernacula and do not feed during hibernation, DLC dwarf lemurs sporadically moved and ate. While demonstrating that captive dwarf lemurs are physiologically capable of hibernation, we argue that facilitating their hibernation serves both husbandry and research goals: first, it enables lemurs to express the biphasic phenotypes (fattening and fat depletion) that are characteristic of their wild conspecifics; second, by “renaturalizing” dwarf lemurs in captivity, they will emerge a better model for understanding both metabolic extremes in primates generally and metabolic disorders in humans specifically.

The Role of For-Profit Firms in Disaster Management: A Typology

2021 ◽  
pp. 027614672110201
Author(s):  
Swapan Deep Arora ◽  
Anirban Chakraborty
Keyword(s):  
Disaster Management ◽  
Community Resilience ◽  
Sustained Development ◽  
For Profit ◽  
State Initiative ◽  
Marketing Orientation ◽  
Disaster Studies ◽  
Building Community ◽  
Multiple Levels

Contemporary existence presents a duality of sustained development and recurrent disasters. Whereas disaster studies have closely examined public policy and state initiative, the role of for-profits is under-explored. Stakeholder theory and its integration with marketing orientation provide a theoretical underpinning for understanding the behavior of firms across contingencies, including disasters. Accordingly, we traverse the range of actions that these market entities exhibit in aiding disaster management and develop a comprehensive typology. The current COVID-19 pandemic provides a context for illustrating the practical exemplar actions as mapped to the proposed typology. We add to theory by examining the role of marketing philosophy and for-profits in tackling disasters at multiple levels: from micro-aspects of maintaining relations with specific stakeholders to the macro-objective of building community resilience. Further, the proposed typology helps practice and research by highlighting the range of firms' responses contributing to disaster management and building community resilience.

scholarly journals Group size and aquatic vegetation modulates male preferences for female shoals in wild zebrafish, Danio rerio

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Aditya Ghoshal ◽  
Anuradha Bhat
Keyword(s):  
Group Size ◽  
Aquatic Vegetation ◽  
Natural Habitat ◽  
Ecological Factors ◽  
Choice Test ◽  
Female Group ◽  
Aquatic Flora ◽  
In The Wild ◽  
The Individual

AbstractShoaling decisions in the wild are determined by a combination of innate preferences of the individual along with the interplay of multiple ecological factors. In their natural habitat as well as in the laboratory, zebrafish is a shoaling fish. Here, we investigate the role of group size and associated vegetation in shaping shoaling preferences of wild male zebrafish. We studied the association preference of males to groups of female shoals in a multi-choice test design. We found that males made greater proportion of visits to an 8-female group compared to 2 and 4-female groups. However, males spent similar proportions of time across the three female-containing groups. When artificial vegetation was incorporated along with female number as an additional factor, we found that males prefer high and moderately vegetated patches compared to low or no-vegetation groups, irrespective of the number of females in these patches. Based on experiments using a novel multi-choice design, our results show that preference for group size can change due to interaction of two separate factors. This work is a first attempt to understand the role of aquatic flora in determining shoaling preferences in zebrafish, using an experimental paradigm consisting of a gradation in female and vegetation densities.

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