Disentangling the effects of date, individual, and territory quality on the seasonal decline in fitness

Ecology ◽  
2017 ◽  
Vol 98 (8) ◽  
pp. 2102-2110 ◽  
Author(s):  
Tomas Pärt ◽  
Jonas Knape ◽  
Matthew Low ◽  
Meit Öberg ◽  
Debora Arlt
Keyword(s):  
Territory Quality ◽  
Seasonal Decline

Female Choice in Middendorff's Grasshopper-Warbler (Locustella Ochotensis)

The Auk ◽  
1986 ◽  
Vol 103 (4) ◽  
pp. 694-700 ◽  
Author(s):  
Hisashi Nagata
Keyword(s):  
Mate Choice ◽  
Female Choice ◽  
Morphological Characteristics ◽  
Female Mate Choice ◽  
Food Abundance ◽  
Territory Size ◽  
Territory Quality ◽  
Female Mate ◽  
Nest Sites ◽  
Grasshopper Warbler

Abstract Morphological and territorial factors that influence female mate choice were examined in the monogamous Middendorff's Grasshopper-Warbler (Locustella ochotensis) on an islet near Fukuoka, Japan. I assumed that pairing date corresponded with female mate choice. Pairing date was correlated with both territory size and food abundance but was not correlated with selected morphological characteristics of males. Territorial quality was assumed to be correlated with territory size because preferable food resources and nest sites were distributed randomly. I conclude that female mate choice was influenced by territory quality rather than by the morphological characteristics of males.

scholarly journals Temporal changes in reproductive success and optimal breeding decisions in a long-distance migratory bird

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Cynthia Reséndiz-Infante ◽  
Gilles Gauthier
Keyword(s):  
Reproductive Success ◽  
Clutch Size ◽  
Environmental Changes ◽  
Migratory Bird ◽  
Laying Date ◽  
Negative Consequences ◽  
Breeding Phenology ◽  
Additional Time ◽  
Long Distance ◽  
Seasonal Decline

AbstractMany avian migrants have not adjusted breeding phenology to climate warming resulting in negative consequences for their offspring. We studied seasonal changes in reproductive success of the greater snow goose (Anser caerulescens atlantica), a long-distance migrant. As the climate warms and plant phenology advances, the mismatch between the timing of gosling hatch and peak nutritive quality of plants will increase. We predicted that optimal laying date yielding highest reproductive success occurred earlier over time and that the seasonal decline in reproductive success increased. Over 25 years, reproductive success of early breeders increased by 42%, producing a steeper seasonal decline in reproductive success. The difference between the laying date producing highest reproductive success and the median laying date of the population increased, which suggests an increase in the selection pressure for that trait. Observed clutch size was lower than clutch size yielding the highest reproductive success for most laying dates. However, at the individual level, clutch size could still be optimal if the additional time required to acquire nutrients to lay extra eggs is compensated by a reduction in reproductive success due to a delayed laying date. Nonetheless, breeding phenology may not respond sufficiently to meet future environmental changes induced by warming temperatures.

scholarly journals Age and Territory-Quality Effects on Fecundity in the Spanish Imperial Eagle (Aquila adalberti)

The Auk ◽  
2003 ◽  
Vol 120 (1) ◽  
pp. 180-186
Author(s):  
Miguel Ferrer
Keyword(s):  
Territory Quality ◽  
Spanish Imperial Eagle ◽  
Imperial Eagle ◽  
Aquila Adalberti

The Seasonal Decline in the Litter Size of Meadow Voles

1989 ◽  
Vol 70 (1) ◽  
pp. 142-152 ◽  
Author(s):  
F. S. Dobson ◽  
P. Myers
Keyword(s):  
Litter Size ◽  
Meadow Voles ◽  
Seasonal Decline

scholarly journals Ensuring the financial probability of the united territorial communities in the conditions of decentralization

2020 ◽  
pp. 191-199
Author(s):  
Natalia Yevtushenko ◽  
Vitalina Malyshko ◽  
Yuliia Horodnichenko
Keyword(s):  
Social Services ◽  
Technical Assistance ◽  
Synthesis Method ◽  
Well Being ◽  
Financial Resources ◽  
Territory Quality ◽  
State Budget ◽  
Complex Process ◽  
Analysis And Synthesis ◽  
General Scientific

Subject of research is the sources of funding for the social development of united territorial communities (UTC). The purpose of the article is to determine the prospects and measures to attract financial resources for the development of local communities in a decentralized environment. Methods which were used in course of research: method of system-structural analysis and synthesis, method of comparative analysis, generalization, statistical, general scientific, special methods of scientific knowledge and other research methods. Study results.The article identifies the main obstacles to effective financial support for the development of territorial communities, considers some experience in finding and raising funds for the development of territories, describes the sources of such funds. Measures that will contribute to the investment attractiveness of the territory are analyzed and substantiated. Application of results. The results of the study can be used by the united territorial communities for the formation of financial resources, as well as in higher education institutions in the teaching of economic disciplines. Conclusions. After conducting the research, it should be noted that the process of uniting territorial communities in Ukraine and, consequently, attracting financial resources to their budgets is a rather complex process and therefore requires consolidation of efforts at all levels of government and support from European partners.  Due to the reform of decentralization of management in Ukraine, capable territorial communities should be created that are able to ensure the development of the territory, quality provision of social services and promote the well-being of their residents and Ukraine in general.  It is determined that the main sources of funds for socio-economic development of UTC are: international technical assistance, additional subventions from the state budget to local budgets for the formation of community infrastructure, local taxes from businesses.

Relative importance of male and territory quality in pairing success of male rock ptarmigan ( Lagopus mutus )

1999 ◽  
Vol 45 (5) ◽  
pp. 355-359 ◽  
Author(s):  
Jonathan Bart ◽  
Susan L. Earnst
Keyword(s):  
Relative Importance ◽  
Rock Ptarmigan ◽  
Territory Quality ◽  
Lagopus Mutus

scholarly journals Territory quality drives intraspecific patterns of extrapair paternity

2007 ◽  
Vol 18 (6) ◽  
pp. 1058-1064 ◽  
Author(s):  
D. R. Rubenstein
Keyword(s):  
Territory Quality ◽  
Extrapair Paternity

Seasonal decline of the tomato leafminer, Tuta absoluta , in the shifting landscape of a vegetable-growing area

2018 ◽  
Vol 166 (8) ◽  
pp. 638-647 ◽  
Author(s):  
Serigne Sylla ◽  
Oumar Seydi ◽  
Karamoko Diarra ◽  
Thierry Brévault
Keyword(s):  
Tuta Absoluta ◽  
Tomato Leafminer ◽  
Seasonal Decline

Show me you care: female mate choice based on egg attendance rather than male or territorial traits

2020 ◽  
Vol 31 (4) ◽  
pp. 1054-1064 ◽  
Author(s):  
Anyelet Valencia-Aguilar ◽  
Kelly R Zamudio ◽  
Célio F B Haddad ◽  
Steve M Bogdanowicz ◽  
Cynthia P A Prado
Keyword(s):  
Mate Choice ◽  
Parental Care ◽  
Paternal Care ◽  
Genetic Relatedness ◽  
Female Mate Choice ◽  
Male Reproductive Success ◽  
Offspring Survival ◽  
Territory Quality ◽  
Female Mate

Abstract Female mate choice is often based on male traits, including signals or behaviors, and/or the quality of a male’s territory. In species with obligate paternal care, where care directly affects offspring survival, females may also base their mate choices on the quality of a sire’s care. Here, we quantified male reproductive success in a natural population of the glass frog Hyalinobatrachium cappellei, a species with male parental care, to determine the influence of territory quality, male traits, and paternal care behaviors on female mate choice. We found that attending males have a higher chance of gaining new clutches than nonattending males. Our results indicate that females do not select males based only on body condition, calling persistence, or territory traits. Instead, our findings support the hypothesis that females choose males based on care status. Indeed, males already attending a clutch were 70% more likely to obtain another clutch, and the time to acquire an additional clutch was significantly shorter. We also found that males adjust their parental care effort in response to genetic relatedness by caring only for their own offspring; however, remaining close to unrelated clutches serves as a strategy to attract females and increase chances of successful mating. Thus, males that establish territories that already contain clutches benefit from the signal eggs provide to females.

Sign in / Sign up

Export Citation Format

Share Document