Clutch size (bird eggs)
Variation in egg and clutch size of the Black Redstart (Phoenicurus ochruros) at the northeastern edge of the Qinghai-Tibetan Plateau
... the size of the clutch that deter- mines the volume of the egg, or is the volume reduced because of the capacity of the female to reproduce lim- ited? Our study on the Black Redstart indicates that egg ...
6
Clutch size and Egg characteristics of Spotted Munia, Lonchurapunctulatain Jammu region, J&K India
... egg size for large number of birds species [3],[4],[5][6] and [7]. Egg size varies with laying order, date of laying, and clutch size, [8], [9] and genetic, ontogenetic, and environmental ...
5
Geographic variation in life-history traits: growth season affects age structure, egg size and clutch size in Andrew’s toad (Bufo andrewsi)
... egg size (1), clutch size (2), minimum age (3), maximum age (4), average age (5), lifetime activity (6), and adult body length (7) to length of the growth season for 17 Bufo andrewsi populations ...
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Influence of host size on the clutch size and developmental success of the gregarious ectoparasitoid Eulophus pennicornis (Nees) (Hymenoptera: Braconidae) attacking larvae of the tomato moth Lacanobia oleracea (L ) (Lepidoptera: Noctuidae)
... Despite the low rates of parasitism when the wasp was provided with L5 hosts only, the parasitoid frequently identified potential hosts at the end of this stadium, as they neared ecdysis, and stayed with them in order to ...
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Geographic variation in life history traits : growth season affects age structure, egg size and clutch size in Andrew’s toad (Bufo andrewsi)
... whereas clutch size decreases with it ...body size among anuran populations not only depend on average age but also on the effective number of days available for growth ...
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Metabolic rate of nocturnal incubation in female great tits, Parus major, in relation to clutch size measured in a natural environment
... original clutch size laid by the ...original clutch). In this, we followed previous studies on brood size manipulations in the same population (Sanz and Tinbergen, 1999; Wiersma and Tinbergen, ...
7
Abstract Nests, eggs, clutch size, incubation and reproductive success of Lonchura panctulala (Scaly-breasted Munia) were observed
... This study has provided some information on the nest building, eggs, clutch size and hatching success of Scaly-breasted Munia. However, life history and ecology of birds were poorly Known at Sagaing ...
5
Use of portable ultrasonography as a nondestructive method for estimating reproductive effort in lizards
... about clutch size, egg size, and reproductive stage in species with small clutch ...and clutch size using this method may be highly variable (Cuellar, 1971), and in viviparous ...
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Gonad morphology, oocyte development and spawning cycle of the calanoid copepod Acartia clausi
... Clutch size and spawning frequency were monitored on five days for 12 (April 10, 11) or 8 h (May 2–4; ...average clutch production during the first 8 h was ...the clutch size was high ...
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An evolutionary solution of terrestrial isopods to cope with low atmospheric oxygen levels
... time, clutch size and hatchling body mass were analysed by two-factorial ANCOVA with oxygen and temperature as fixed factors and mother mass as covariate, and all possible interactions were stepwise ...
5
Nest box selection and reproduction of European Rollers in Central Italy: a 7-year study
... and size, the expected varia- tion between sites for this parameter has been ...in clutch sizes between artificial nest boxes of different sizes and natural nest sites which may differ in terms of structure ...
12
Reproductive modes in lizards: measuring fitness consequences of the duration of uterine retention of eggs
... mass, clutch size, egg mass, duration of uterine retention of eggs (number of days required for oviposition after treatments), B levels in maternal plasma and eggs, and incubation ...each clutch to ...
8
Reproductive success and productivity of the Cyprus Wheatear Oenanthe cypriaca, a migratory, island endemic
... (e.g. clutch size). Quadratic effects of clutch initiation date were considered because breeding activities may have peaked mid-season rather than at the start: there was no strong evidence for ...
11
Traits of Economic Importance in Duck Egg Production in the Philipines
... The laying duration, egg number, hen–day rate egg production, prime sequence length, sequence length or clutch size, number of sequences, pause length, number of pau[r] ...
6
The effect of biologging systems on reproduction, growth and survival of adult sea turtles
... clutches), clutch frequency was adjusted and referred to as ECF (estimated clutch frequency) hereafter (see [42, 45] for further ...Mean clutch size and ECF were calculated for each ...
12
Exposure of the mosquito vector Culex pipiens to the malaria parasite Plasmodium relictum: effect of infected blood intake on immune and antioxidant defences, fecundity and survival
... and would lead to differential resource allocation into fight against the parasite, self-maintenance or reproduction. We proposed to investigate the effect of exposure to malaria parasite Plasmodium relictum (pSGS1) on ...
12
Gladbach, Anja (2011): Individual fitness correlates in consecutive years of pair bond in Upland Geese. Dissertation, LMU München: Fakultät für Biologie
... higher clutch size and early ...high clutch volumes and early nesting lead to immunosuppression and therefore low lymphocyte counts ...brood size could further highlight the importance of ...
98
Exposure to the neonicotinoid imidacloprid disrupts sex allocation cue use during superparasitism in the parasitoid wasp Nasonia vitripennis
... (i) clutch size and sex ratio cues are distinct, and (ii) imidacloprid does not disrupt clutch size cue use, there are two possible scenarios that could explain our observed ...of ...
5
Investigating Acute and Long-Term Effects of Management Actions on American Oystercatcher Populations
... Component vital rates included mean clutch size ( ), hatching rate ( ), nest survival ( ), probability of re-nesting after first failed nest ( ), probability of re-nesting after second [r] ...
401
Body-Mass, Composition, and Survival of Nestling and Fledgling Starlings (Sturnus vulgaris) at Belmont, New Zealand
... with clutch size or brood size at any ...brood size was not correlated with mass at ...of clutch size and brood size, but lighter broods were more likely to fail totally ...
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