Ontogenetic Shifts of Predatory Strategies by the Carnivorous Gastropod Acanthina monodon (Pallas, 1774)

Malacologia ◽  
2021 ◽  
Vol 64 (1) ◽  
Author(s):  
Joseline A. Büchner-Miranda ◽  
Luis P. Salas-Yanquin ◽  
Andres Averbuj ◽  
Jorge M. Navarro ◽  
Victor M. Cubillos ◽  
...  
Keyword(s):  
Ontogenetic Shifts

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

Ontogenetic shifts in the diet ofGalaxias maculatus (Galaxiidae) andOdontesthes microlepidotus (Atherinidae)

1993 ◽  
Vol 36 (3) ◽  
pp. 283-290 ◽  
Author(s):  
Patricia M. Cervellini ◽  
Miguel A. Battini ◽  
Victor E. Cussac
Keyword(s):  
Ontogenetic Shifts

Measuring ontogenetic shifts in central‐place foragers: A case study with honeybees

2020 ◽  
Vol 89 (8) ◽  
pp. 1860-1871 ◽  
Author(s):  
Fabrice Requier ◽  
Mickaël Henry ◽  
Axel Decourtye ◽  
François Brun ◽  
Pierrick Aupinel ◽  
...  
Keyword(s):  
Central Place ◽  
Ontogenetic Shifts

Ontogenetic shifts in mesohabitat use of young-of-year Rio Grande blue sucker in the big bend region of the Rio Grande

2020 ◽  
Vol 103 (12) ◽  
pp. 1471-1480
Author(s):  
Seiji Miyazono ◽  
Allison A. Pease ◽  
Sarah Fritts ◽  
Timothy B. Grabowski
Keyword(s):  
Rio Grande ◽  
Ontogenetic Shifts ◽  
Big Bend ◽  
Big Bend Region

Integrated Venomics and Venom Gland Transcriptome Analysis of Juvenile and Adult Mexican RattlesnakesCrotalus simus,C. tzabcan, andC. culminatusRevealed miRNA-modulated Ontogenetic Shifts

2017 ◽  
Vol 16 (9) ◽  
pp. 3370-3390 ◽  
Author(s):  
Jordi Durban ◽  
Libia Sanz ◽  
Dilza Trevisan-Silva ◽  
Edgar Neri-Castro ◽  
Alejandro Alagón ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Venom Gland ◽  
Ontogenetic Shifts
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