Matches in SemOpenAlex for { <https://semopenalex.org/work/W2154345050> ?p ?o ?g. }
- W2154345050 endingPage "489" @default.
- W2154345050 startingPage "467" @default.
- W2154345050 abstract "Do small-scale experiments showing spatial density dependence in marine fishes scale-up to temporal density dependence and regulation of relatively large local populations? If so, what are the causative mechanisms and their implications? We conducted an eight-year multigeneration study of population dynamics of bicolor damselfish (Stegastes partitus) inhabiting four large coral reefs in the Bahamas. After a four-year baseline period, it was clear that two populations naturally received very few settlement-stage larvae, so recruitment of recently settled fish was artificially enhanced at one low-settlement reef and reduced at one high-settlement reef to ensure a broad range of population sizes over which to test for regulation. Over all eight years, populations on the two naturally high-settlement reefs experienced temporal density dependence in multiple per capita demographic rates: mortality, survival to adulthood, and fecundity. These local populations also displayed components of regulation: persistence, boundedness, and return tendency. Reefs supporting regulated populations were structurally complex, providing sufficient prey refuges that ensured high survival at low densities. In contrast, populations at low-settlement reefs experienced either density-independent or slightly inversely density-dependent demographic rates, even though recruitment was artificially augmented to high levels at one reef. There was no evidence of regulation at these reefs, and indeed, one local population suffered temporary extirpation. Here, habitat complexity was relatively low, increasing the risk of predation, especially at low population densities when fish would have to travel longer distances when finding mates or home sites inhabited by conspecifics. Among all demographic parameters, density dependence in individual growth (an indicator of within-species competition for food) was least correlated with the presence or absence of local population regulation. We conclude that, for systems like these, the environmental context of a local population, especially predation risk and the distribution and abundance of spatial refuges, is more important than the magnitude of larval supply alone in determining the existence of regulating density dependence. At the broader metapopulation scale, density dependence in both survival and fecundity exogenously caused by predation may provide regulation for the entire stock, even when endogenous within-species competition (assumed to be important in most fisheries models) is weak." @default.
- W2154345050 created "2016-06-24" @default.
- W2154345050 creator A5008935366 @default.
- W2154345050 creator A5009990805 @default.
- W2154345050 creator A5035475765 @default.
- W2154345050 creator A5038964854 @default.
- W2154345050 creator A5066606192 @default.
- W2154345050 creator A5068067733 @default.
- W2154345050 date "2012-11-01" @default.
- W2154345050 modified "2023-10-14" @default.
- W2154345050 title "Density dependence and population regulation in marine fish: a large-scale, long-term field manipulation" @default.
- W2154345050 cites W1543409689 @default.
- W2154345050 cites W1728270392 @default.
- W2154345050 cites W1873319745 @default.
- W2154345050 cites W1964872109 @default.
- W2154345050 cites W1968621620 @default.
- W2154345050 cites W1970952716 @default.
- W2154345050 cites W1974281082 @default.
- W2154345050 cites W1977977815 @default.
- W2154345050 cites W1979719927 @default.
- W2154345050 cites W1980351823 @default.
- W2154345050 cites W1981673996 @default.
- W2154345050 cites W1981983768 @default.
- W2154345050 cites W1983748118 @default.
- W2154345050 cites W1984341385 @default.
- W2154345050 cites W1992275075 @default.
- W2154345050 cites W1995076426 @default.
- W2154345050 cites W1995723758 @default.
- W2154345050 cites W1996752348 @default.
- W2154345050 cites W2002471496 @default.
- W2154345050 cites W2004015002 @default.
- W2154345050 cites W2015246312 @default.
- W2154345050 cites W2017430012 @default.
- W2154345050 cites W2018501584 @default.
- W2154345050 cites W2021117135 @default.
- W2154345050 cites W2029770811 @default.
- W2154345050 cites W2033683901 @default.
- W2154345050 cites W2040980518 @default.
- W2154345050 cites W2041869700 @default.
- W2154345050 cites W2049369917 @default.
- W2154345050 cites W2049644432 @default.
- W2154345050 cites W2050491945 @default.
- W2154345050 cites W2054014123 @default.
- W2154345050 cites W2056144311 @default.
- W2154345050 cites W2063711326 @default.
- W2154345050 cites W2065317320 @default.
- W2154345050 cites W2066420743 @default.
- W2154345050 cites W2068443150 @default.
- W2154345050 cites W2072099281 @default.
- W2154345050 cites W2076791656 @default.
- W2154345050 cites W2078139485 @default.
- W2154345050 cites W2079026323 @default.
- W2154345050 cites W2081598442 @default.
- W2154345050 cites W2084439132 @default.
- W2154345050 cites W2085078241 @default.
- W2154345050 cites W2085334787 @default.
- W2154345050 cites W2088557076 @default.
- W2154345050 cites W2090443057 @default.
- W2154345050 cites W2091917177 @default.
- W2154345050 cites W2093044170 @default.
- W2154345050 cites W2102977229 @default.
- W2154345050 cites W2107559991 @default.
- W2154345050 cites W2109292318 @default.
- W2154345050 cites W2111483669 @default.
- W2154345050 cites W2113130232 @default.
- W2154345050 cites W2116310878 @default.
- W2154345050 cites W2118606788 @default.
- W2154345050 cites W2121844310 @default.
- W2154345050 cites W2122005067 @default.
- W2154345050 cites W2123920115 @default.
- W2154345050 cites W2124144667 @default.
- W2154345050 cites W2130126278 @default.
- W2154345050 cites W2131309871 @default.
- W2154345050 cites W2131467828 @default.
- W2154345050 cites W2131872432 @default.
- W2154345050 cites W2133564450 @default.
- W2154345050 cites W2133925990 @default.
- W2154345050 cites W2134756374 @default.
- W2154345050 cites W2137370906 @default.
- W2154345050 cites W2138118186 @default.
- W2154345050 cites W2142177167 @default.
- W2154345050 cites W2142575626 @default.
- W2154345050 cites W2146494100 @default.
- W2154345050 cites W2148032232 @default.
- W2154345050 cites W2150798762 @default.
- W2154345050 cites W2153477354 @default.
- W2154345050 cites W2153703574 @default.
- W2154345050 cites W2161652665 @default.
- W2154345050 cites W2164884745 @default.
- W2154345050 cites W2171303688 @default.
- W2154345050 cites W2315748579 @default.
- W2154345050 cites W2323543100 @default.
- W2154345050 cites W3152077330 @default.
- W2154345050 cites W76576994 @default.
- W2154345050 doi "https://doi.org/10.1890/11-1525.1" @default.
- W2154345050 hasPublicationYear "2012" @default.
- W2154345050 type Work @default.
- W2154345050 sameAs 2154345050 @default.