Ontogenetic shifts and interspecies variation in tolerance to desiccation and heat at the early benthic phase of six intertidal invertebrates

2020 ◽  
Vol 634 ◽  
pp. 15-28 ◽  
Author(s):  
HJ Hamilton ◽  
LA Gosselin
Keyword(s):  
Ontogenetic Shifts ◽  
Interspecies Variation ◽  
Intertidal Invertebrates

Long-term monitoring provides insight into estuarine top predator (Carcharhinus leucas) resilience following an extreme weather event

2020 ◽  
Vol 639 ◽  
pp. 169-183
Author(s):  
P Matich ◽  
BA Strickland ◽  
MR Heithaus
Keyword(s):  
Habitat Use ◽  
Acoustic Telemetry ◽  
South Florida ◽  
Behavioral Variability ◽  
Catch Per Unit Effort ◽  
Ontogenetic Shifts ◽  
Carcharhinus Leucas ◽  
Acute Disturbance ◽  
Cold Snap

Chronic environmental change threatens biodiversity, but acute disturbance events present more rapid and immediate threats. In 2010, a cold snap across south Florida had wide-ranging impacts, including negative effects on recreational fisheries, agriculture, and ecological communities. Here, we use acoustic telemetry and historical longline monitoring to assess the long-term implications of this event on juvenile bull sharks Carcharhinus leucas in the Florida Everglades. Despite the loss of virtually all individuals (ca. 90%) within the Shark River Estuary during the cold snap, the catch per unit effort (CPUE) of age 0 sharks on longlines recovered through recruitment within 6-8 mo of the event. Acoustic telemetry revealed that habitat use patterns of age 0-2 sharks reached an equilibrium in 4-6 yr. In contrast, the CPUE and habitat use of age 3 sharks required 5-7 yr to resemble pre-cold snap patterns. Environmental conditions and predation risk returned to previous levels within 1 yr of the cold snap, but abundances of some prey species remained depressed for several years. Reduced prey availability may have altered the profitability of some microhabitats after the cold snap, leading to more rapid ontogenetic shifts to marine waters among sharks for several years. Accelerated ontogenetic shifts coupled with inter-individual behavioral variability of bull sharks likely led to a slower recovery rate than predicted based on overall shark CPUE. While intrinsic variation driven by stochasticity in dynamic ecosystems may increase the resistance of species to chronic and acute disturbance, it may also increase recovery time in filling the diversity of niches occupied prior to disturbance if resistive capacity is exceeded.

The reaction of European lobster larvae (Homarus gammarus) to different quality food: effects of ontogenetic shifts and pre-feeding history

Oecologia ◽  
2013 ◽  
Vol 174 (2) ◽  
pp. 581-594 ◽  
Author(s):  
Katherina L. Schoo ◽  
Nicole Aberle ◽  
Arne M. Malzahn ◽  
Isabel Schmalenbach ◽  
Maarten Boersma
Keyword(s):  
Food Effects ◽  
European Lobster ◽  
Ontogenetic Shifts ◽  
Homarus Gammarus ◽  
Quality Food

CLIMATE AND RECRUITMENT OF ROCKY SHORE INTERTIDAL INVERTEBRATES IN THE EASTERN NORTH ATLANTIC

Ecology ◽  
2008 ◽  
Vol 89 (sp11) ◽  
pp. S81-S90 ◽  
Author(s):  
Bernardo R. Broitman ◽  
Nova Mieszkowska ◽  
Brian Helmuth ◽  
Carol A. Blanchette
Keyword(s):  
North Atlantic ◽  
Rocky Shore ◽  
Intertidal Invertebrates ◽  
Eastern North Atlantic

scholarly journals Interspecies Variation in the Functional Consequences of Mutation of Cytochrome c

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0130292 ◽  
Author(s):  
Tracy M. Josephs ◽  
Moira E. Hibbs ◽  
Lily Ong ◽  
Ian M. Morison ◽  
Elizabeth C. Ledgerwood
Keyword(s):  
Cytochrome C ◽  
Interspecies Variation ◽  
Functional Consequences
Sign in / Sign up

Export Citation Format

Share Document