Bottom‐up and top‐down controls on coral reef sponges: disentangling within‐habitat and between‐habitat processes

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Bottom-up and top-down controls on coral reef sponges: disentangling within-habitat and between-habitat processes.

Polarized debates about top-down vs. bottom-up control have given way to more nuanced understanding of control by both resources and consumers in many systems, but coral reef sponges have recently been asserted to differ from other groups in being controlled exclusively top-down. This assertion has been countered by reports of exclusively bottom-up control, with both conclusions based on studie...

متن کامل

Environmental controls on modern scleractinian coral and reef-scale calcification

Modern reef-building corals sustain a wide range of ecosystem services because of their ability to build calcium carbonate reef systems. The influence of environmental variables on coral calcification rates has been extensively studied, but our understanding of their relative importance is limited by the absence of in situ observations and the ability to decouple the interactions between differ...

متن کامل

Ecological Processes and Contemporary Coral Reef Management

Top-down controls of complex foodwebs maintain the balance among the critical groups of corals, algae, and herbivores, thus allowing the persistence of corals reefs as three-dimensional, biogenic structures with high biodiversity, heterogeneity, resistance, resilience and connectivity, and the delivery of essential goods and services to societies. On contemporary reefs world-wide, however, top-...

متن کامل

Resistance vs recovery: morphological strategies of coral reef sponges

1. An inverse association between ability to regenerate and structural complexity (i.e. internal differentiation and integration), illustrated by comparisons among animal phyla, suggests a dichotomy between suites of morphological traits that promote recovery from damage vs traits that promote resistance to damage. 2. The phylum Porifera is particularly suited for exploration of relationships a...

متن کامل

Coral cavity sponges depend on reef-derived food resources: stable isotope and fatty acid constraints

The diet of cavity sponges on the narrow fringing reefs of Curaçao, Caribbean was studied. The origin and resources of the bulk food of these sponges, i.e., dissolved organic matter (DOM), were identified using stable carbon and nitrogen isotopes and fatty acid biomarkers. We found that phytoplankton and its derived DOM from the adjacent open sea and from reef overlying water is not the main so...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Ecology

سال: 2017

ISSN: 0012-9658,1939-9170

DOI: 10.1002/ecy.1754