Results 251 to 260 of about 21,191 (303)

The role of juveniles in structuring demersal assemblages in trawled fishing grounds

open access: yesEstuarine, Coastal and Shelf Science, 2013
The capture of large amounts of small, immature fish of commercial species is a serious problem particularly in multispecies fisheries. Moreover, considerable and increasing interest is being devoted by fishery scientists to identify the distribution and
Michele Gristina   +2 more
exaly   +2 more sources

MORTALITY OF JUVENILE DAMSELFISH: IMPLICATIONS FOR ASSESSING PROCESSES THAT DETERMINE ABUNDANCE

Ecology, 1999
We examined the effects of variation in intra- and intercohort density on the magnitude and form of per capita juvenile mortality rates of three species of damselfish (Dascyllus spp.) at Moorea, French Polynesia. Patterns of mortality over a 2-wk period were estimated from daily counts of new settlers and of the next older age class (
Russell J. Schmitt, Sally J. Holbrook
openaire   +1 more source

The Relationship between Selectivity and Food Abundance in a Juvenile Lizard

Ecology, 1981
Several theoretical models of foraging behavior predict relationships between the relative abundance of a food item and a forager's selectivity for that item. Prey switching models predict that selectivity for items will be positively related to their relative abundance.
Judy Stamps   +2 more
openaire   +1 more source

Does constant effort netting estimate juvenile abundance?

Ringing & Migration, 1991
Numbers of juvenile Blackbirds, Song Thrushes, Blue Tits and Great Tits caught during constant effort mist‐netting were compared with numbers of nestlings of these species ringed during the years 1979–1990 in Treswell Wood, Nottinghamshire. There was a significant relationship between the numbers of juveniles captured and the numbers of nestlings ...
Chris Du Feu, John McMeeking
openaire   +1 more source

The influence of predation and conspecific adults on the abundance of juvenile Evechinus chloroticus (Echinoidea:Echinometridae)

Oecologia, 1982
Reefs dominated by red algae, associated with high echinoid densities, are consistent features of the shallow subtidal around northeastern New Zealand. Factors determining the abundance of juvenile Evechinus chloroticus were investigated in such a habitat.
N L, Andrew, J H, Choat
openaire   +2 more sources

Competition with stone crabs drives juvenile spiny lobster abundance and distribution

Oecologia, 2017
Interspecific competition is assumed to have a strong influence on the population dynamics of competing species, but is not easily demonstrated for mobile species in the wild. In the Florida Keys (USA), anecdotal observations have long pointed to an inverse relationship in abundance of two large decapod crustaceans found co-occurring in hard-bottom ...
Donald C, Behringer, John E, Hart
openaire   +2 more sources

Home - About - Disclaimer - Privacy