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You searched for: Journal Behavioral ecology and sociobiology Remove constraint Journal: Behavioral ecology and sociobiology Subject females Remove constraint Subject: females
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1. "Cryptic" direct benefits of mate choice: choosy females experience reduced predation risk while in precopula

Author:
Rickey D. Cothran; Kristopher Chapman; Andy R. Stiff; Rick A. Relyea
Source:
Behavioral ecology and sociobiology 2012 v.66 no.6 pp. 905-913
ISSN:
0340-5443
Subject:
Amphipoda; Anisoptera (Odonata); biodiversity; biological production; evolution; fecundity; females; fish; males; predation; progeny; risk
Abstract:
... Despite the central role that female mate choice plays in the production of biological diversity, controversy remains concerning its evolution and maintenance. This is particularly true in systems where females are choosy but do not receive obvious direct benefits such as nuptial gifts that increase a female's survival and fecundity. In the absence of such direct benefits, indirect benefits (i.e., ...
DOI:
10.1007/s00265-012-1339-y

2. Access to a carcass, but not mating opportunities, influences paternal care in burying beetles

Author:
Agnieszka B. Luzar; Rebecca Schweizer; Scott K. Sakaluk; Sandra Steiger
Source:
Behavioral ecology and sociobiology 2017 v.71 no.1 pp. 7
ISSN:
0340-5443
Subject:
Nicrophorus vespilloides; breeding; dead animals; females; larvae; males; parental behavior; paternity; progeny; vertebrates
Abstract:
... Selection should favor greater parental effort when the caring individual is more likely to be related to the offspring in its care. If certainty of paternity varies across broods, plasticity in the extent of paternal care may be advantageous, provided that cues of a male’s paternity are available. Consequently, to understand relationships between parentage and parental care, it is necessary to id ...
DOI:
10.1007/s00265-016-2232-x

3. Active and effective nest defence by males in a social apoid wasp

Author:
Eric R. Lucas; Jeremy Field
Source:
Behavioral ecology and sociobiology 2011 v.65 no.8 pp. 1499-1504
ISSN:
0340-5443
Subject:
Microstigmus nigrophthalmus; altruism; brood rearing; females; males; nests; social behavior
Abstract:
... Altruism in the social Hymenoptera is generally considered to be a feature of females rather than males. A popular explanation for this is that in the solitary ancestors of today's social species, males provided little brood care. Males might therefore lack the preadaptations necessary to evolve altruism in social contexts. While anecdotal observations of male contributions to colony life have bee ...
DOI:
10.1007/s00265-011-1159-5

4. Active protection of unrelated offspring against parasitoids. A byproduct of self defense

Author:
Carrasco, David; Kaitala, Arja
Source:
Behavioral ecology and sociobiology 2010 v.64 no.8 pp. 1291-1298
ISSN:
0340-5443
Subject:
Gryon; adults; eggs; evolution; females; food plants; juveniles; males; mortality; natural enemies; oviposition; parasitism; parasitoids; predators; progeny; risk reduction
Abstract:
... Natural enemies exert selection pressure on their prey. Predators and parasitoids drive their prey into the evolution of novel traits to cope with this stress. When eggs and juveniles are the target of enemies, defense strategies may rely on adults. However, it is not easy to predict whether adults should actively protect unrelated offspring. Females of the golden egg bug (Phyllomorpha laciniata) ...
DOI:
10.1007/s00265-010-0943-y

5. Adjusting the timing of hatching to changing environmental conditions has fitness costs in blue tits

Author:
Edward Kluen; Maaike E. de Heij; Jon E. Brommer
Source:
Behavioral ecology and sociobiology 2011 v.65 no.11 pp. 2091-2103
ISSN:
0340-5443
Subject:
oviposition; nests; reproductive performance; breeding; environmental factors; hatching; progeny; temperature; eggs; body condition; females; birds; Finland
Abstract:
... After laying the first egg, a bird can, to a certain extent, adjust the hatching date of the brood to environmental conditions. However, costs of this adjustment have remained largely unexplored. We studied potential costs of hatching delay in a population of blue tits in southern Finland. We explored the factors underlying hatching delay and investigated the association between hatching delay, cl ...
DOI:
10.1007/s00265-011-1218-y

6. Adjustment of brood care behaviour in the absence of a mate in two species of Nicaraguan crater lake cichlids

Author:
Topi K. Lehtonen; Bob B. M. Wong; P. Andreas Svensson; Axel Meyer
Source:
Behavioral ecology and sociobiology 2011 v.65 no.4 pp. 613-619
ISSN:
0340-5443
Subject:
Cichlidae; aggression; brood rearing; females; habitats; lakes; males; predators; progeny; tropics
Abstract:
... In many taxa, parental strategies can vary among individuals. This is especially true in species with biparental care, with males, more often than females, deserting their mates. While there is an abundance of theoretical predictions and empirical data on factors inducing mate abandonment by males, much less is known about what consequences this may have on female behaviour, particularly in the fi ...
DOI:
10.1007/s00265-010-1062-5

7. Adjustment of female reproductive investment according to male carotenoid-based ornamentation in a gallinaceous bird

Author:
Carlos Alonso-Alvarez; Lorenzo Pérez-Rodríguez; María Ester Ferrero; Esther García de-Blas; Fabián Casas; Francois Mougeot
Source:
Behavioral ecology and sociobiology 2012 v.66 no.5 pp. 731-742
ISSN:
0340-5443
Subject:
Alectoris rufa; beak; clutch size; eggs; energy; eyes; females; males; partridges; progeny; testosterone
Abstract:
... Carotenoid-based ornaments (many yellow–orange–red colourations) may signal the genetic or parental quality of the bearer. Thus, their expression could influence the amount of resources/energy that the mate will invest in the production of offspring, thereby optimising its reproductive fitness. The differential allocation hypothesis (DAH) predicts that females mated with more attractive males shou ...
DOI:
10.1007/s00265-012-1321-8

8. Adolescent social environment shapes sexual and aggressive behaviour of adult male zebra finches (Taeniopygia guttata)

Author:
Tim Ruploh; Hans-Joachim Bischof; Nikolaus von Engelhardt
Source:
Behavioral ecology and sociobiology 2013 v.67 no.2 pp. 175-184
ISSN:
0340-5443
Subject:
Fringillidae; Taeniopygia guttata; adolescence; adolescents; adults; aggression; birds; courtship; females; guinea pigs; males; social environment
Abstract:
... Adolescence is the pivotal transitional phase during which animals become sexually and socially mature and acquire the skills to cope with a variety of environmental challenges on their own. We investigated in a bird species, the zebra finch, how the social environment experienced during this period influences their behaviour in a sexual context. Zebra finches were kept in pairs (male–female or ma ...
DOI:
10.1007/s00265-012-1436-y

9. Adult female hamsters avoid interspecific mating after exposure to heterospecific males

Author:
delBarco-Trillo, Javier; McPhee, M. E.; Johnston, Robert E.
Source:
Behavioral ecology and sociobiology 2010 v.64 no.8 pp. 1247-1253
ISSN:
0340-5443
Subject:
Mesocricetus auratus; Mesocricetus brandti; adulthood; adults; females; hamsters; males; odors; parents; progeny
Abstract:
... When females mate with a heterospecific male, they do not usually produce viable offspring. Thus, there is a selective pressure for females to avoid interspecific mating. In many species, females innately avoid heterospecific males; females can also imprint on their parents to avoid later sexual interactions with heterospecific males. However, it was previously unknown whether adult females can le ...
DOI:
10.1007/s00265-010-0939-7
PubMed:
20676390
PubMed Central:
PMC2910443

10. Adult nutrition and reproductive physiology: a stable isotope analysis in a eusocial paper wasp (Mischocyttarus mastigophorus, Hymenoptera: Vespidae)

Author:
Sean O’Donnell; Katherine Fiocca; Meghan Campbell; Susan Bulova; Paula Zelanko; David Velinsky
Source:
Behavioral ecology and sociobiology 2018 v.72 no.6 pp. 86
ISSN:
0340-5443
Subject:
Mischocyttarus; adulthood; adults; carbon; diapause; diet; eclosion; females; insect colonies; labor; larvae; lipid content; nests; nitrogen; nutrient content; nutrients; ovarian development; overwintering; paper wasps; plant-based foods; plasticity; prediction; pupae; pupal development; reproductive performance; social class; social insects; stable isotopes; trophic levels
Abstract:
... Division of labor in social groups can be influenced by differential nutrition. Consumption of more food or higher-quality food often affects individuals’ capacities for reproduction. In social insects, nutrients consumed during immature (e.g., larval) stages often affect adult reproductive capacity, but adult nutrition may also impact reproductive status. This study tested whether ovary developme ...
DOI:
10.1007/s00265-018-2501-y

11. Advantage for the sex changer who retains the gonad of the nonfunctional sex

Author:
Sachi Yamaguchi; Yoh Iwasa
Source:
Behavioral ecology and sociobiology 2017 v.71 no.2 pp. 39
ISSN:
0340-5443
Subject:
Paragobiodon; Trimma; coral reefs; corals; evolution; females; fish; gonads; males; models; monogamy; polygyny; sex reversal; socioeconomic status; tissues
Abstract:
... Many species of teleost fish live in coral reefs and change sex depending on their social status; some even demonstrate sex change in both directions. Typically, in the absence of a more dominant competitive individual, the fish functions as a male; however, when a more competitively superior individual arrives, the focal fish becomes a female. Among these bidirectional sex changers, there are spe ...
DOI:
10.1007/s00265-017-2269-5

12. Advertisement-call modification, male competition, and female preference in the bird-voiced treefrog Hyla avivoca

Author:
Martínez-Rivera, Carlos César; Gerhardt, H. Carl
Source:
Behavioral ecology and sociobiology 2008 v.63 no.2 pp. 195-208
ISSN:
0340-5443
Subject:
Hyla; acoustic properties; evolution; females; heart rate; males
Abstract:
... Senders and receivers influence dynamic characteristics of the signals used for mate attraction over different time scales. On a moment-to-moment basis, interactions among senders competing for a mate influence dynamic characteristics, whereas the preferences of receivers of the opposite gender exert an influence over evolutionary time. We observed and recorded the calling patterns of the bird-voi ...
DOI:
10.1007/s00265-008-0650-0
PubMed:
19789730
PubMed Central:
PMC2752986

13. Age and sex influence marmot antipredator behavior during periods of heightened risk

Author:
Amanda J. Lea; Daniel T. Blumstein
Source:
Behavioral ecology and sociobiology 2011 v.65 no.8 pp. 1525-1533
ISSN:
0340-5443
Subject:
Marmota; adults; body condition; females; foraging; males; mortality; predation; predators; risk; yearlings
Abstract:
... Animals adjust their antipredator behavior according to environmental variation in risk, and to account for their ability to respond to threats. Intrinsic factors that influence an animal’s ability to respond to predators (e.g., age, body condition) should explain variation in antipredator behavior. For example, a juvenile might allocate more time to vigilance than an adult because mortality as ...
DOI:
10.1007/s00265-011-1162-x
PubMed:
21874082
PubMed Central:
PMC3134770

14. Age, seasonality, and correlates of aggression in female Apennine chamois

Author:
Niccolò Fattorini; Sandro Lovari; Claudia Brunetti; Carolina Baruzzi; Antonella Cotza; Elisabetta Macchi; Maria Chiara Pagliarella; Francesco Ferretti
Source:
Behavioral ecology and sociobiology 2018 v.72 no.10 pp. 171
ISSN:
0340-5443
Subject:
Rupicapra pyrenaica ornata; aggression; chamois; cortisol; females; herbivores; lactation; metabolites; progeny; social behavior; stress response; summer; testosterone; vegetation; weaning
Abstract:
... Intrinsic and environmental stressors, such as age and seasonality, may influence social behavior and endocrine levels in gregarious foragers, but little is known about how season and age affect both behavioral and physiological responses. We evaluated seasonal/age variation of aggression and vigilance, and seasonal/age variation of endocrine levels (fecal cortisol and testosterone metabolites), i ...
DOI:
10.1007/s00265-018-2584-5

15. Age- and sex-specific variations in microhabitat and macrohabitat use in a territorial lizard

Author:
David M. Delaney; Daniel A. Warner
Source:
Behavioral ecology and sociobiology 2016 v.70 no.6 pp. 981-991
ISSN:
0340-5443
Subject:
Anolis; adults; age structure; body size; breeding season; community structure; females; habitat preferences; interspecific variation; juveniles; landscapes; lizards; males; microhabitats; winter
Abstract:
... Animals should select microhabitats with features that enhance fitness. However, the fitness benefits of different habitats may vary across ages and between sexes. By quantifying microhabitat choice in relation to age or sex, as well as the specific fitness consequences of habitat selection, we can better understand the factors that shape the way organisms distribute themselves across landscapes. ...
DOI:
10.1007/s00265-016-2121-3

16. Age- and state-dependent reproductive effort in male mountain goats, Oreamnos americanus

Author:
Mainguy, Julien; Côté, Steeve D.
Source:
Behavioral ecology and sociobiology 2008 v.62 no.6 pp. 935-943
ISSN:
0340-5443
Subject:
Oreamnos americanus; adults; courtship; estrus; females; foraging; goats; juveniles; males; mating systems; polygyny; prediction; social structure; summer
Abstract:
... In mammalian polygynous mating systems, male reproductive effort consists mainly of male-male competition and courting of females, which entail substantial somatic costs. Males are thus expected to adjust their reproductive effort according to their age and condition. In this study, we examined how activity budgets of male mountain goats (Oreamnos americanus), a polygynous ungulate, varied with ag ...
DOI:
10.1007/s00265-007-0517-9

17. Age-related changes in an insect mating signal have no effect on female choice

Author:
Paul A. De Luca; Reginald B. Cocroft
Source:
Behavioral ecology and sociobiology 2009 v.63 no.12 pp. 1787-1798
ISSN:
0340-5443
Subject:
determinate growth; females; insects; longevity; males
Abstract:
... The structure of male mating signals is often influenced by age. The causes and consequences of age-based signal variation have been much studied in visual, acoustic, and chemical signaling modalities, but are less explored in species that use vibrational signals for mate attraction. However, the complex structure of many vibrational signals makes them ideal for investigating the relationships bet ...
DOI:
10.1007/s00265-009-0803-9

18. Age-related female mating decisions are condition dependent in wolf spiders

Author:
Dustin J. Wilgers; Eileen A. Hebets
Source:
Behavioral ecology and sociobiology 2012 v.66 no.1 pp. 29-38
ISSN:
0340-5443
Subject:
Lycosidae; age structure; cannibalism; diet; females; males; mating behavior
Abstract:
... Female mating behaviors are known to be sensitive to a variety of individual factors both external and internal to a female; however, mating decisions are likely due to a suite of interacting factors. By independently manipulating female and male diet in the wolf spider Rabidosa rabida and testing females across age groups, we demonstrate that, in addition to its independent effect, female nutriti ...
DOI:
10.1007/s00265-011-1248-5

19. Age-related parental care in a long-lived bird: implications for offspring development

Author:
Santiago Ortega; Oscar Sánchez-Macouzet; Andrea Urrutia; Cristina Rodríguez; Hugh Drummond
Source:
Behavioral ecology and sociobiology 2017 v.71 no.9 pp. 132
ISSN:
0340-5443
Subject:
Sula nebouxii; age structure; birds; elderly; females; longevity; males; nests; parental behavior; phenotype; progeny; social behavior
Abstract:
... In long-lived species, behaviour is expected to vary across the lifespan, first improving with maturation and experience and then declining with senescence, but measurement is rare, particularly during old age. Measuring nest defence intensity in 255 known-age blue-footed boobies (Sula nebouxii) of 19 age classes confirmed the inverted-U pattern: intensity of nest defence increased in young males ...
DOI:
10.1007/s00265-017-2364-7

20. Age-related patterns of yolk androgen deposition are consistent with adaptive brood reduction in spotless starlings

Author:
Jaime Muriel; Lorenzo Pérez-Rodríguez; Diego Gil
Source:
Behavioral ecology and sociobiology 2019 v.73 no.12 pp. 160
ISSN:
0340-5443
Subject:
androstenedione; ecology; egg composition; egg quality; eggs; females; life history; natural selection; progeny; sociobiology; testosterone
Abstract:
... Female birds can influence offspring development by adjusting egg size or by a differential allocation of egg resources. Such maternal effects can be expected to be shaped by natural selection, given the costs connected to the allocation of maternal resources. Among egg components, yolk androgens play an important role in affecting offspring life-history traits. Despite their relevance for nestlin ...
DOI:
10.1007/s00265-019-2770-0

21. Aggregation and dispersal based on social cues as a nest-site selection strategy in a resource-defence polygynandry mating system

Author:
Stephen Heap; Phillip G. Byrne
Source:
Behavioral ecology and sociobiology 2013 v.67 no.4 pp. 685-697
ISSN:
0340-5443
Subject:
animals; eggs; females; males; mating systems; mortality; nesting sites; nests; polyandry; polygyny; risk
Abstract:
... Many animals must choose a nest site in order to reproduce. However, it is unclear how nest-site selection strategies vary across different mating systems. We must therefore explore nest-site selection strategies in a range of mating systems, including the interaction between resource-defence polygyny and polyandry (i.e. polygynandry). In this study, we imposed a re-settlement event in the terrest ...
DOI:
10.1007/s00265-013-1488-7

22. Aggression and submission reflect reproductive conflict between females in cooperatively breeding meerkats Suricata suricatta

Author:
Kutsukake, N.; Clutton-Brock, T. H.
Source:
Behavioral ecology and sociobiology 2006 v.59 no.4 pp. 541-548
ISSN:
0340-5443
Subject:
Suricata suricatta; aggression; breeding; females; pregnancy; pups
Abstract:
... In many cooperatively breeding species, dominant females suppress reproduction in subordinates. Although it is commonly assumed that aggression from dominant females plays a role in reproductive suppression, little is known about the distribution of aggressive interactions. Here, we investigate the distribution of aggressive and submissive interactions among female meerkats (Suricata suricatta). I ...
DOI:
10.1007/s00265-005-0079-7

23. Aggression, color signaling, and performance of the male color morphs of a Brazilian lizard (Tropidurus semitaeniatus)

Author:
Andre C. Bruinjé; Felipe E. A. Coelho; Tales M. A. Paiva; Gabriel C. Costa
Source:
Behavioral ecology and sociobiology 2019 v.73 no.6 pp. 72
ISSN:
0340-5443
Subject:
aggression; chest; color; females; head; lizards; males; mating behavior; morphs; reproductive success
Abstract:
... Behavior can help to establish dominance in intrasexual interactions, preventing more costly aggressive interactions and improving access to mates. Distinct color morphs often correlate with behavior, driving differential reproductive success between them. The lizard Tropidurus semitaeniatus usually expresses two male color morphs, Yellow or Black. It is likely that morphs play a role in reproduct ...
DOI:
10.1007/s00265-019-2673-0

24. Aggressive mating as a tragedy of the commons in the water strider Aquarius remigis

Author:
Eldakar, Omar Tonsi; Dlugos, Michael J.; Wilcox, R. Stimson; Wilson, David Sloan
Source:
Behavioral ecology and sociobiology 2009 v.64 no.1 pp. 25-33
ISSN:
0340-5443
Subject:
Gerridae; aggression; females; fish; foods; males; photoperiod; predators; surface water
Abstract:
... The tragedy of the commons usually refers to the overexploitation of resources such as food or water. Here, we show in a laboratory study that competition among males for females can also result in a tragedy of the commons' situation. Male water striders (Aquarius remigis) vary widely in their aggressiveness toward pursuing females. The most aggressive males prevent females from feeding and cause ...
DOI:
10.1007/s00265-009-0814-6

25. Aging male loons make a terminal investment in territory defense

Author:
Walter H. Piper; Kristin M. Brunk; Gabriella L. Jukkala; Eric A. Andrews; Seth R. Yund; Nelson G. Gould
Source:
Behavioral ecology and sociobiology 2018 v.72 no.6 pp. 95
ISSN:
0340-5443
Subject:
aggression; chicks; energy; females; life history; males; progeny; reproductive success; survival rate; territoriality
Abstract:
... Animals that senesce experience a decline in residual reproductive value (RRV), such that old individuals can expect reduced breeding success compared to young ones. According to life history theory, animals with low RRV, which thus have less to lose, should shift resources away from self-maintenance and towards reproduction, an expectation called terminal investment. In a population of common loo ...
DOI:
10.1007/s00265-018-2511-9

26. Algal blooms decrease care but increase egg survival in a fish with paternal care

Author:
Marja Järvenpää; Kai Lindström
Source:
Behavioral ecology and sociobiology 2011 v.65 no.11 pp. 2023-2028
ISSN:
0340-5443
Subject:
algal blooms; Pomatoschistus minutus; nests; turbidity; males; courtship; eutrophication; fish; eggs; females
Abstract:
... Human-induced eutrophication, resulting in algal blooms and increased water turbidity, is an alarming problem in aquatic systems. Here, we experimentally tested the impact of algal turbidity on parental care, egg fanning, and time in the nest, in the sand goby, Pomatoschistus minutus, a fish with uniparental male care. We allowed males to care for their eggs in either clear water or water made tur ...
DOI:
10.1007/s00265-011-1211-5

27. All-offspring dispersal in a tropical mammal with resource defense polygyny

Author:
Dechmann, Dina K. N.; Kalko, Elisabeth K. V.; Kerth, Gerald
Source:
Behavioral ecology and sociobiology 2007 v.61 no.8 pp. 1219-1228
ISSN:
0340-5443
Subject:
breeding; females; gene flow; loci; longevity; males; mammals; mating systems; microsatellite repeats; philopatry; polygyny; population structure; progeny; termite mounds; tropics
Abstract:
... In polygynous mammals, males are usually responsible for gene flow while females are predominantly philopatric. However, there is evidence that in a few mammalian species female offspring may disperse to avoid breeding with their father when male tenure exceeds female age at maturity. We investigated offspring dispersal and local population structure in the Neotropical bat Lophostoma silvicolum. T ...
DOI:
10.1007/s00265-007-0352-z

28. Allocation of nuptial gifts in tree crickets changes with both male and female diet

Author:
William D. Brown
Source:
Behavioral ecology and sociobiology 2011 v.65 no.5 pp. 1007-1014
ISSN:
0340-5443
Subject:
Oecanthus nigricornis; amino acids; courtship; diet; females; males
Abstract:
... Male tree crickets, Oecanthus nigricornis, offer a nuptial gift to females during mating in the form of a secretion from a dorsal metanotal gland. I examined the effects of male and female nutrient limitation on allocation of the gift. Males were fed 14C radiolabeled amino acids, placed onto high- or low-quality diets and then mated with females also maintained on high- or low-quality diets. Femal ...
DOI:
10.1007/s00265-010-1105-y

29. Allomaternal care, brains and fertility in mammals: who cares matters

Author:
Sandra A. Heldstab; Karin Isler; Judith M. Burkart; Carel P. van Schaik
Source:
Behavioral ecology and sociobiology 2019 v.73 no.6 pp. 71
ISSN:
0340-5443
Subject:
Pongidae; alloparental behavior; animal fertility; brain; breeding; cognition; energy; evolution; fathers; females; hibernation; humans; litter size; males; maternal behavior; nutritional adequacy; prediction; progeny; reproductive performance
Abstract:
... The expensive brain hypothesis predicts that the lowest stable level of energy input sets the upper limit to a species’ brain size. This prediction receives comparative support from the effects of experienced seasonality (including hibernation) and diet quality on mammalian brain size. Here, we test another prediction, which concerns the temporal stability of energy inputs. Allomaternal care in ma ...
DOI:
10.1007/s00265-019-2684-x

30. Alloparental behaviour in Sinai spiny mice Acomys dimidiatus: a case of misdirected parental care?

Author:
Vladimíra Tučková; Radim Šumbera; Barbora Čížková
Source:
Behavioral ecology and sociobiology 2016 v.70 no.3 pp. 437-447
ISSN:
0340-5443
Subject:
nests; kinship; kin selection; sex ratio; mice; pups; altruism; litter size; females; Acomys
Abstract:
... Communal breeding, where reproducing females share a nest and the care of their pups, occurs in many animal species. According to kin selection theory, alloparental behaviour should occur predominantly among closely related conspecifics. However, familiarity between females, a prerequisite for reciprocal altruism, may also play a role. The aim of our study was to analyse the effect of kinship and ...
DOI:
10.1007/s00265-016-2065-7

31. Alternative mating tactics in dimorphic males of the harvestman Longiperna concolor (Arachnida: Opiliones)

Author:
Camila Zatz; Rachel M. Werneck; Rogelio Macías-Ordóñez; Glauco Machado
Source:
Behavioral ecology and sociobiology 2011 v.65 no.5 pp. 995-1005
ISSN:
0340-5443
Subject:
Opiliones; dimorphism; eggs; evolution; females; legs; males; tropics
Abstract:
... Intense male–male competition for females may drive the evolution of male morphological dimorphism, which is frequently associated with alternative mating tactics. Using modern techniques for the detection of discontinuous allometries, we describe male dimorphism in the Neotropical harvestman Longiperna concolor, the males of which use their elongated, sexually dimorphic legs IV in fights for the ...
DOI:
10.1007/s00265-010-1103-0

32. Alternative mating tactics in the Italian treefrog, Hyla intermedia

Author:
Castellano, Sergio; Marconi, Valentina; Zanollo, Valeria; Berto, Giulia
Source:
Behavioral ecology and sociobiology 2009 v.63 no.8 pp. 1109-1118
ISSN:
0340-5443
Subject:
Hyla; breeding sites; females; males; parasitism
Abstract:
... As in many lekking anurans, Italian treefrog males use two mating tactics: they can attract females by calling vigorously or be satellites, that is, they can remain silent in proximity of a calling male and try to intercept females attracted by their neighbour. We investigated the factors that affected the expression of this mating tactic. Consistent with the conditional mating tactic hypothesis, ...
DOI:
10.1007/s00265-009-0756-z

33. Alternative reproductive tactics and the impact of local competition on sex ratios in the ant Hypoponera opacior

Author:
Foitzik, Susanne; Kureck, Ilka Maria; Rüger, Markus Hannes; Metzler, Dirk
Source:
Behavioral ecology and sociobiology 2010 v.64 no.10 pp. 1641-1654
ISSN:
0340-5443
Subject:
sexual behavior; microsatellite repeats; morphs; swarms; nests; sex allocation; monsoon season; males; brothers; sex ratio; reproductives; summer; mating competitiveness; nesting sites; females; breeding season
Abstract:
... The ant Hypoponera opacior exhibits alternative reproductive morphs of males and females associated with distinct sexual behaviours. Our long-term study reports strong seasonality in sexual production with a mating season in early and one in late summer. Winged (alate) reproductives emerge in June, swarm during the monsoon season and establish new colonies independently. In contrast, wingless work ...
DOI:
10.1007/s00265-010-0977-1

34. Altitude underlies variation in the mating system, somatic condition, and investment in reproductive traits in male Asian grass frogs (Fejervarya limnocharis)

Author:
Long Jin; Sheng Nan Yang; Wen Bo Liao; Stefan Lüpold
Source:
Behavioral ecology and sociobiology 2016 v.70 no.8 pp. 1197-1208
ISSN:
0340-5443
Subject:
Fejervarya; altitude; breeding; breeding season; evolution; females; frogs; grasses; interspecific variation; latitude; longitude; males; mating systems; paternity; prediction; reproductive traits; resource allocation; sex ratio; spermatozoa; testes; China
Abstract:
... There is substantial comparative and growing experimental evidence that the competition for fertilization among sperm from different males can drive variation in male reproductive investments. However, less is known about the extent of natural variation in these investments relative to environmental variables affecting resource availability and mating system dynamics, which would allow insights in ...
DOI:
10.1007/s00265-016-2128-9

35. Analysis of sex sequences by means of generalized linear mixed models

Author:
Roberto Ambrosini; Diego Rubolini; Nicola Saino
Source:
Behavioral ecology and sociobiology 2014 v.68 no.8 pp. 1367-1377
ISSN:
0340-5443
Subject:
computer software; data collection; databases; females; models; parrots; progeny; sex allocation
Abstract:
... Adaptive strategies of sex allocation functioning to increase fitness, including strategic allocation of sex in relation to birth order and sex composition of the progeny, have frequently been explored, but the development of a statistical framework for these analyses has lagged behind. In this paper, we contribute to filling this gap by devising a method for analyzing sex sequences based on a pro ...
DOI:
10.1007/s00265-014-1754-3

36. Androgen-dependent maternal effects on offspring fitness in zebra finches

Author:
Rutkowska, Joanna; Wilk, Tomasz; Cichoń, Mariusz
Source:
Behavioral ecology and sociobiology 2007 v.61 no.8 pp. 1211-1217
ISSN:
0340-5443
Subject:
Taeniopygia guttata; adulthood; adverse effects; cell-mediated immunity; daughters; eggs; fecundity; females; males; maternal effect; mothers; nestlings; oviposition; sex ratio; sons; testosterone; viability
Abstract:
... There is accumulating evidence that maternal hormones may play a role in offspring sex adjustment, but little is known about the costs of such hormone-mediated mechanisms. Recent studies have reported sex-specific effects of hormones on offspring viability. Specifically, we previously found that elevating the plasma androgen level in mothers results in a male-biased offspring primary sex ratio, bu ...
DOI:
10.1007/s00265-007-0351-0

37. Anther-mimicking floral guides exploit a conflict between innate preference and learning in bumblebees (Bombus terrestris)

Author:
Pohl, Maike; Watolla, Thomas; Lunau, Klaus
Source:
Behavioral ecology and sociobiology 2008 v.63 no.2 pp. 295-302
ISSN:
0340-5443
Subject:
Bombus terrestris; color; dichogamy; females; flowering; flowers; learning; males; pollen; pollination; pollinators
Abstract:
... Bee-pollinated plants are frequently dichogamous: e.g. each flower has a discernable male and female phase, with only the male phase offering a pollen reward. Pollen-collecting bees should therefore discriminate against female-phase flowers to maximise their rate of pollen harvest, but this behaviour would reduce plant fitness due to inferior pollination. Here, we test the hypothesis that flowers ...
DOI:
10.1007/s00265-008-0661-x

38. Anthropogenic noise reduces male reproductive investment in an acoustically signaling insect

Author:
Anne E. Bowen; Gabrielle A. Gurule-Small; Robin M. Tinghitella
Source:
Behavioral ecology and sociobiology 2020 v.74 no.8 pp. 103
ISSN:
0340-5443
Subject:
body weight; death; females; insects; instars; males; phenotypic plasticity; pollutants; population density; reproductive performance; reproductive success; risk; sociobiology; sperm competition; spermatophores; spermatozoa; traffic
Abstract:
... Rapidly changing environments impose novel selection pressures on organisms, and sometimes adaptive phenotypic plasticity allows organisms to survive and reproduce in the face of environmental change. However, plastic responses can also be maladaptive. In this study, we investigate whether male reproductive investment responds plastically to varied experience with traffic noise. We exposed male cr ...
DOI:
10.1007/s00265-020-02868-3

39. Anti-predator benefits of group living in white-nosed coatis (Nasua narica)

Author:
Christine C. Hass; David Valenzuela
Source:
Behavioral ecology and sociobiology 2002 v.51 no.6 pp. 570-578
ISSN:
0340-5443
Subject:
Panthera onca; Puma concolor; animals; females; foraging; group size; juveniles; mortality; parturition; predation; predators; social behavior; Arizona; Mexico
Abstract:
... Predation is often considered an important factor in the evolution of sociality among animals. We studied mortality patterns and grouping behavior of white-nosed coatis (Nasua narica) at sites in southern Arizona, USA, and western Jalisco, México. Coatis were monitored by radio-tracking and recaptures for more than 3 years at each site. In both populations, predation by large felids, including jag ...
DOI:
10.1007/s00265-002-0463-5

40. Antioxidant status, flight performance and sexual signalling in wild-type parrots

Author:
Arnold, Kathryn E.; Larcombe, Stephen D.; Ducaroir, Lotta; Alexander, Lucille
Source:
Behavioral ecology and sociobiology 2010 v.64 no.11 pp. 1857-1866
ISSN:
0340-5443
Subject:
alpha-tocopherol; antioxidant activity; antioxidants; blood plasma; budgerigars; diet; females; flight; males; mating behavior; mineral content; nutritional status; parrots; vitamin A; Australia
Abstract:
... During mate choice, individuals are predicted to assess traits that honestly signal the quality of potential partners. Locomotor capacity may be such a trait, potentially signalling condition and ability to resist oxidative damage. In this study, we experimentally manipulated nutritional status: Male wild-type budgerigars, imported from Australia, were provided with either an enhanced (EQ) or redu ...
DOI:
10.1007/s00265-010-0997-x

41. Are aggressive vocalizations the honest signals of body size and quality in female Asian particoloured bats?

Author:
Xin Zhao; Tinglei Jiang; Hao Gu; Heng Liu; Congnan Sun; Ying Liu; Jiang Feng
Source:
Behavioral ecology and sociobiology 2018 v.72 no.6 pp. 96
ISSN:
0340-5443
Subject:
Chiroptera; animals; arms (limbs); bioacoustics; body size; correlation; death; evolution; females; immune response; reproduction; vocalization
Abstract:
... Animals make calls to give conspecifics information about themselves. Based on these calls, the receiver makes decisions that affect survival and reproduction. However, not all of the signals are reliable. Honest signals are either costly to produce or are constrained by physical or physiological factors that cannot be faked. Aggressive calls during antagonistic interactions are both costly and co ...
DOI:
10.1007/s00265-018-2510-x

42. Are behavioural syndromes sex specific? Personality in a widespread lizard species

Author:
Marcus Michelangeli; David G. Chapple; Bob B. M. Wong
Source:
Behavioral ecology and sociobiology 2016 v.70 no.11 pp. 1911-1919
ISSN:
0340-5443
Subject:
Scincidae; adults; ecology; females; gender differences; invasive species; life history; lizards; males; social behavior
Abstract:
... Understanding how and why consistent behavioural traits (i.e. animal personality) vary between individuals, and identifying the mechanisms that underlie such variation, is a key focus in behavioural and evolutionary ecology. In many animals, male and female behaviour often diverges in response to different selection pressures and life history trajectories post-maturation. Despite this, animal pers ...
DOI:
10.1007/s00265-016-2197-9

43. Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment

Author:
Krist, Miloš; Grim, Tomáš
Source:
Behavioral ecology and sociobiology 2007 v.61 no.6 pp. 863-876
ISSN:
0340-5443
Subject:
Ficedula; antioxidants; birds; brood parasitism; color; correlation; egg quality; egg shell; eggs; females; males; nestlings; nests; predation; prediction; sexual selection
Abstract:
... Impressive variation in egg colouration among birds has puzzled evolutionary biologists for a long time. The most frequently studied selective forces moulding egg colouration--predation and brood parasitism--have either received little empirical support or may play a role in only a minority of species. A novel hypothesis has suggested that egg colour may be significantly influenced by sexual selec ...
DOI:
10.1007/s00265-006-0315-9

44. Are yolk androgens and carotenoids in barn swallow eggs related to parental quality?

Author:
Rebecca J. Safran; Kevin M. Pilz; Kevin J. McGraw; Stephanie M. Correa; Hubert Schwabl
Source:
Behavioral ecology and sociobiology 2008 v.62 no.3 pp. 427-438
ISSN:
0340-5443
Subject:
Hirundo rustica; androgens; carotenoids; clutch size; egg yolk; eggs; females; males; plumage; prediction; progeny
Abstract:
... Recently, evidence is mounting that females can adaptively engineer the quality of their offspring via the deposition of yolk compounds, including carotenoids and androgens. In this study, we simultaneously consider how both carotenoids and androgens in egg yolk relate to parental quality in barn swallows (Hirundo rustica erythrogaster). First, we found no relationship between concentrations or am ...
DOI:
10.1007/s00265-007-0470-7

45. Association between extra-pair paternity and nestling sex and condition in the barn swallow

Author:
Alessandra Costanzo; Diego Rubolini; Roberto Ambrosini; Manuela Caprioli; Emanuele Gatti; Andrea Romano; Marco Parolini; Luca Gianfranceschi; Nicola Saino
Source:
Behavioral ecology and sociobiology 2018 v.72 no.8 pp. 137
ISSN:
0340-5443
Subject:
Hirundo rustica; body size; daughters; fathers; females; genes; genetic variation; inheritance (genetics); males; nestlings; paternity; phenotype; prediction; probability; sex allocation; sex ratio; sexual selection; siblings; sons
Abstract:
... Parents should differentially allocate resources to the production of offspring of either sex depending on their expected fitness return. In sexually promiscuous females, offspring sex ratio should be affected by the sexual attractiveness of biological fathers because sons, but not daughters, will benefit from inheriting genes for sexual attractiveness. Females may acquire benefits for the offspri ...
DOI:
10.1007/s00265-018-2552-0

46. Association networks in spider monkeys (Ateles geoffroyi)

Author:
Ramos-Fernández, Gabriel; Boyer, Denis; Aureli, Filippo; Vick, Laura G.
Source:
Behavioral ecology and sociobiology 2009 v.63 no.7 pp. 999-1013
ISSN:
0340-5443
Subject:
Araneae; Ateles; adults; females; monkeys; social structure
Abstract:
... We use two novel techniques to analyze association patterns in a group of wild spider monkeys (Ateles geoffroyi) studied continuously for 8 years. Permutation tests identified association rates higher or lower than chance expectation, indicating active processes of companionship and avoidance as opposed to passive aggregation. Network graphs represented individual adults as nodes and their associa ...
DOI:
10.1007/s00265-009-0719-4

47. Association patterns among wild chimpanzees (Pan troglodytes schweinfurthii) reflect sex differences in cooperation

Author:
Gilby, Ian C.; Wrangham, Richard W.
Source:
Behavioral ecology and sociobiology 2008 v.62 no.11 pp. 1831-1842
ISSN:
0340-5443
Subject:
Pan troglodytes; climate; females; gender differences; kin selection; males; national parks; Uganda
Abstract:
... Theory predicts that frequent dyadic association should promote cooperation through kin selection or social tolerance. Here we test the hypothesis that sex differences in the strength and stability of association preferences among free-ranging chimpanzees conform to sex differences in cooperative behavior. Using long-term data from the Kanyawara chimpanzee (Pan troglodytes schweinfurthii) communit ...
DOI:
10.1007/s00265-008-0612-6

48. Associative learning is necessary for airborne pheromones to activate sexual arousal-linked brain areas of female rats

Author:
Yao-Hua Zhang; Ming-Ming Tang; Xiao Guo; Xiao-Rong Gao; Jin-Hua Zhang; Jian-Xu Zhang
Source:
Behavioral ecology and sociobiology 2019 v.73 no.6 pp. 75
ISSN:
0340-5443
Subject:
adults; females; hypothalamus; learning; males; mice; odors; proteinuria; rats; sex pheromones; sexual maturity; urine; volatile organic compounds; weaning
Abstract:
... In rodents, urine-borne male pheromones include volatile organic compounds (VOCs) and major urinary proteins (MUPs). In mice, the attraction of females to male odor is reportedly acquired through associative learning with MUPs in some studies. Here, we found that VOC and MUP sex pheromones were differentiated in rats at around 8 weeks of age and that females separated from males at weaning showed ...
DOI:
10.1007/s00265-019-2685-9

49. Assortative mating for telomere length and antioxidant capacity in barn swallows (Hirundo rustica)

Author:
Lela Khoriauli; Andrea Romano; Manuela Caprioli; Marco Santagostino; Solomon G. Nergadze; Alessandra Costanzo; Diego Rubolini; Elena Giulotto; Nicola Saino; Marco Parolini
Source:
Behavioral ecology and sociobiology 2017 v.71 no.8 pp. 124
ISSN:
0340-5443
Subject:
Hirundo rustica; antioxidant activity; antioxidants; apoptosis; assortative mating; breeding; breeding season; cell division; correlation; defense mechanisms; females; life history; males; mating behavior; nucleoproteins; parents; prediction; progeny; telomeres
Abstract:
... The composition of breeding pairs can deviate from random, resulting in a positive association between homologous traits between mates. Assortative mating can arise either as a by-product of constraints imposed on random pairing by variation in individual life histories or because of mutual sex preferences. Because individuals that prefer high-quality mates gain fitness advantages, mate choice sho ...
DOI:
10.1007/s00265-017-2352-y

50. Assured fitness returns favor sociality in a mass-provisioning sweat bee, Megalopta genalis (Hymenoptera: Halictidae)

Author:
Adam R. Smith; William T. Wcislo; Sean O'Donnell
Source:
Behavioral ecology and sociobiology 2003 v.54 no.1 pp. 14-21
ISSN:
0340-5443
Subject:
Formicidae; Megalopta genalis; adults; defensive behavior; evolution; females; models; nesting; nests; predation; prediction; progeny; social behavior
Abstract:
... Assured fitness returns models for the evolution of sociality emphasize the selective value of ensuring that offspring receive adequate parental care to reach maturity. If a member of a social group dies, it can accrue returns on investment in offspring through the efforts of surviving social partners. We provide evidence that in the mass-provisioning, facultatively social sweat bee Megalopta gena ...
DOI:
10.1007/s00265-003-0589-0