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You searched for: Journal Behavioral ecology and sociobiology Remove constraint Journal: Behavioral ecology and sociobiology Publication Year 2013 Remove constraint Publication Year: 2013 Subject males Remove constraint Subject: males Subject body size Remove constraint Subject: body size Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Dominance, not kinship, determines individual position within the communal roosts of a cooperatively breeding bird

Author:
Napper, Clare J.; Sharp, Stuart P.; McGowan, Andrew; Simeoni, Michelle; Hatchwell, Ben J.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.12 pp. 2029-2039
ISSN:
0340-5443
Subject:
birds; body size; evolution; females; flocks; heat; kin selection; kinship; males; sex ratio
Abstract:
... Kin selection has played an important role in the evolution and maintenance of cooperative breeding behaviour in many bird species. However, although relatedness has been shown to affect the investment decisions of helpers in such systems, less is known about the role that kin discrimination plays in other contexts, such as communal roosting. Individuals that roost communally benefit from reduced ...
DOI:
10.1007/s00265-013-1613-7

2. Nitrate affects courting and breathing but not escape performance in adult newts

Author:
Secondi, J.; Lepetz, V.; Cossard, G.; Sourice, S.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.11 pp. 1757-1765
ISSN:
0340-5443
Subject:
adults; anaerobiosis; body size; breathing; breeding; courtship; females; males; oxygen; pollution; population characteristics; predation; risk; salamanders and newts; sexual selection; steroid metabolism
Abstract:
... The increasing spread of contaminants in the environment affects the behaviour of individuals and can be predicted to modify population characteristics in the long run. It is thus crucial to investigate the effect of contaminants on fitness-related traits. Nitrate is a major pollutant that disrupts oxygen fixation and steroid metabolism and is expected to affect adult behaviour. In water breeding ...
DOI:
10.1007/s00265-013-1583-9

3. Selection for early emergence, longevity and large body size in wingless, sib-mating ant males

Author:
Kureck, Ilka M.; Nicolai, Beate; Foitzik, Susanne
Source:
Behavioral ecology and sociobiology 2013 v.67 no.8 pp. 1369-1377
ISSN:
0340-5443
Subject:
body size; females; longevity; males; nests; sexual selection; spermatozoa
Abstract:
... Sexual selection has led to male morphologies and behaviours that either increase male attractiveness or their success in male–male competition. We investigated male traits under selection in the ant Hypoponera opacior, in which wingless males mate with pupal queens inside their natal colony and guard their partners for hours. The lack of female choice and fights among adult males makes this speci ...
DOI:
10.1007/s00265-013-1566-x

4. Weapons or mating signals? Claw shape and mate choice in a fiddler crab

Author:
Callander, Sophia; Kahn, Andrew T.; Maricic, Tim; Jennions, Michael D.; Backwell, Patricia R. Y.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.7 pp. 1163-1167
ISSN:
0340-5443
Subject:
body size; claws; courtship; crabs; females; males; sexual selection
Abstract:
... Males often possess traits, such as horns, claws, and tusks, which are used during male–male combat. Studies suggest that selection has fine tuned these weapons to improve their effectiveness and that the shape of these weapons provides cues for males to assess the strength of rivals. Similarly, females might also assess a male’s weaponry to determine his value as a mate. The largest weapon relati ...
DOI:
10.1007/s00265-013-1541-6

5. Experience affects mating behavior, but does not impact parental reproductive allocation in a lizard

Author:
Warner, Daniel A.; Kelly, Clint D.; Lovern, Matthew B.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.6 pp. 973-983
ISSN:
0340-5443
Subject:
Anolis; body size; eggs; females; lizards; males; mating behavior; paternal effect; spermatozoa; steroids
Abstract:
... Investment into reproduction is influenced by multiple factors and varies substantially between males and females. Theory predicts that males should adjust their ejaculate size or quality in response to variation in female experience or phenotypic quality. In addition, sperm investment by males may also be influenced by their own status and experience. Although such adjustments of male ejaculate s ...
DOI:
10.1007/s00265-013-1523-8

6. Evolution of mating systems and sexual size dimorphism in North American cyprinids

Author:
Pyron, M.; Pitcher, T. E.; Jacquemin, S. J.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.5 pp. 747-756
ISSN:
0340-5443
Subject:
Cyprinidae; body size; dimorphism; females; fish; males; mating systems; models; phylogeny; spawning; sperm competition; testes
Abstract:
... Mating systems evolve with sexual size dimorphism (SSD) in many animals. Mating systems with males larger than females occur when males compete for female access or guard territories, while mating systems with group mating tend to occur in species where females are the same size or larger than males. In addition to variation in SSD with mating system, sperm competition varies among mating systems ...
DOI:
10.1007/s00265-013-1498-5

7. Boldness and body size of male Spanish terrapins affect their responses to chemical cues of familiar and unfamiliar males

Author:
Ibáñez, Alex; Marzal, Alfonso; López, Pilar; Martín, José
Source:
Behavioral ecology and sociobiology 2013 v.67 no.4 pp. 541-548
ISSN:
0340-5443
Subject:
Emydidae; body size; males; odors; risk; turtles
Abstract:
... Recognition and avoidance of conspecifics based on chemical cues could reduce the risk of aggressive interactions between males. Success in agonistics encounters with unfamiliar males should be lower than with previously known familiar males. Then, males should avoid the chemicals from unfamiliar males with respect to those from familiar males. However, boldness and size could affect the outcome o ...
DOI:
10.1007/s00265-012-1473-6

8. Females prefer males with superior fighting abilities but avoid sexually harassing winners when eavesdropping on male fights

Author:
Bierbach, David; Sassmannshausen, Vanessa; Streit, Bruno; Arias-Rodriguez, Lenin; Plath, Martin
Source:
Behavioral ecology and sociobiology 2013 v.67 no.4 pp. 675-683
ISSN:
0340-5443
Subject:
Poecilia; body size; females; fish; males; sexual behavior
Abstract:
... Selection imposed by male competition (intrasexual selection) and female choice (intersexual selection) can be con- or discordant. Specifically, females may or may not prefer mating with dominant males, and direct costs of interacting with dominant (and possibly more harassing) males have been suggested to explain avoidance of dominant males. Here, we exemplify that inter- and intrasexual selectio ...
DOI:
10.1007/s00265-013-1487-8

9. Are white-crowned sparrow badges reliable signals?

Author:
Laubach, Zachary M.; Blumstein, Daniel T.; Romero, L. Michael; Sampson, Greg; Foufopoulos, Johannes
Source:
Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 481-492
ISSN:
0340-5443
Subject:
birds; blood; body size; breeding season; corticosterone; experimental design; males; plumage
Abstract:
... Status badges, such as crown plumage, mediate intraspecific interactions. The reliability of crown morphology as a status badge in male mountain white-crowned sparrows (Zonotrichia leucophrys oriantha) is uncertain. We examined morphological and physiological correlates of the proportion of crown that was white (“crown-white”) in 178 male mountain white-crowned sparrows during the 2008–2009 breedi ...
DOI:
10.1007/s00265-012-1468-3

10. Consequences of paternal care on pectoral fin allometry in a desert-dwelling fish

Author:
van Lieshout, Emile; Svensson, P. Andreas; Wong, Bob B. M.
Source:
Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 513-518
ISSN:
0340-5443
Subject:
Gobiidae; allometry; anaerobic conditions; body size; females; fins; fish; head; males; sexual dimorphism; sexual selection
Abstract:
... Positive static allometry is a scaling relationship where the relative size of traits covaries with adult body size. Traditionally, positive allometry is thought to result from either altered physiological requirements at larger body size or from strongly condition-dependent allocation under sexual selection. Yet, there are no theoretical reasons why positive allometry cannot evolve in fitness-rel ...
DOI:
10.1007/s00265-012-1470-9

11. High degree of paternity loss in a species with alternative reproductive tactics

Author:
Cogliati, Karen M.; Neff, Bryan D.; Balshine, Sigal
Source:
Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 399-408
ISSN:
0340-5443
Subject:
body size; breeding season; courtship; energy; fish; males; mating systems; microsatellite repeats; nests; paternity; phenotype; spermatozoa
Abstract:
... In many mating systems, males adopt alternative reproductive tactics (ARTs) to maximize reproductive success. In fishes, guarding males often invest more energy into courtship, defense, and paternal care, whereas cuckolding males forego such costs and steal fertilizations by releasing their sperm in the nest of a guarding male. These two tactics have been documented in the plainfin midshipman fish ...
DOI:
10.1007/s00265-012-1460-y

12. The role of size and aggression in intrasexual male competition in a social lizard species, Egernia whitii

Author:
McEvoy, Jo; While, Geoffrey M.; Sinn, David L.; Wapstra, Erik
Source:
Behavioral ecology and sociobiology 2013 v.67 no.1 pp. 79-90
ISSN:
0340-5443
Subject:
aggression; body size; environmental factors; lizards; males; sexual selection
Abstract:
... Competition between males is a key component of the agonistic intrasexual interactions that influence resource acquisition, social system dynamics, and ultimately reproductive success. Sexual selection theory predicts that traits that enhance success in intrasexual competition (particularly male–male competition) should be favored. In vertebrates, this often includes body size and aggression, with ...
DOI:
10.1007/s00265-012-1427-z