Results 21 to 30 of about 1,947,763 (295)
Egg development and hatching success in alpine chironomids [PDF]
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
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
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]
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
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
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
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.
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]
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

