Results 21 to 30 of about 1,947,763 (295)

Egg development and hatching success in alpine chironomids [PDF]

open access: yesFreshwater Biology, 2019
Abstract Climate change affects both alpine freshwater ecosystems and their benthic communities, dominated by Chironomidae (Diptera). Previous studies assigned each chironomid species a narrow thermal niche and a correspondingly high sensitivity towards global warming. Nevertheless, to date no study has examined egg development although the potential
Stefan Andreas Schütz, Leopold Füreder
openaire   +1 more source

Nesting Site Nesting Site Characteristics and Egg Hatching Success of Maleo (Macrocephalon maleo) in Hungayono Sanctuary, Gorontalo

open access: yesJournal of Natural Resources and Environmental Management, 2022
Maleo population is decreasing due to the decline in suitable breeding site. The establishment of a maleo sanctuary in Hungayono aims to increase maleo population by protecting its eggs and increasing the success rate of eggs hatched. This study aims to
Fira Rizka Karim   +2 more
doaj   +1 more source

effects of hatching egg weight and length of storage period on hatching success in pekin ducks

open access: yes, 2016
This study was carried out to investigate the effects of hatching egg weight and length of storage period on egg weight loss, hatchability performance and incubation length of Pekin ducks.
PETEK, METİN, ALPAY, FAZLI
openaire   +2 more sources

Parental exposure to elevated pCO2 influences the reproductive success of copepods [PDF]

open access: yes, 2014
Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/
Lindeque, Penelope   +11 more
core   +1 more source

Nesting success of red-winged blackbirds (Agelaius phoeniceus) in marshes in an anthropogenic landscape

open access: yesRoyal Society Open Science, 2022
Recent analyses show significant population declines in many abundant avian species, especially marsh-nesting species including the red-winged blackbird (RWBL). Hypothesized causes include reduced nesting success resulting from changing land-use patterns
Scott K. Robinson, Holly M. McChesney
doaj   +1 more source

Olive ridley sea turtle hatching success as a function of the microbial abundance in nest sand at Ostional, Costa Rica.

open access: yesPLoS ONE, 2015
Several studies have suggested that significant embryo mortality is caused by microbes, while high microbial loads are generated by the decomposition of eggs broken by later nesting turtles.
Vanessa S Bézy   +2 more
doaj   +1 more source

Developmental asynchrony might not reduce fitness in early life in painted turtles

open access: yesFrontiers in Physiology, 2022
Synchronous hatching and emergence of turtles from nests may be adaptive in predator avoidance during dispersal. However, little is known about the phenotypic consequences of such synchrony or the generality of predator avoidance in driving the evolution
P. L. Colbert   +2 more
doaj   +1 more source

Effect of pH on snow crab hatching success.

open access: yes, 2023
Hatching success in female snow crabs held in three different pH treatments for 2 years. Values represent the mean in each category. There are no statistically significant differences among treatments in either year.
Robert J. Foy (17199801)   +2 more
core   +1 more source

Is hatching success of copepod eggs diatom density-dependent? [PDF]

open access: yesMarine Ecology Progress Series, 1996
Two species of diatoms, Phaeodactylurn tncornutum and Thalassiosira rotula, were fed to Calanus helgolandjcus females at concentrations varying between 10 and 106 cells ml-l. Their effects on the fecundity and hatching success of eggs were compared with those of the dinoflagellate diet Prorocentrum minl~nurn at 104 cells ml-' used as a control ...
Y Chaudron   +4 more
openaire   +1 more source

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